From 438db5a92b7526a12591f764042528a86d2ebb4b Mon Sep 17 00:00:00 2001 From: Shmulik Ladkani Date: Sun, 23 Sep 2012 09:52:29 +0200 Subject: [PATCH 01/96] mtd: cmdlinepart: Simplify parse_cmdline_partitions Simply 'parse_cmdline_partitions': the outer loop iterating over 'partitions' is actually a search loop, it does not execute the inner loop for each partition, only for the matched partition. Let's break when search is successful, and move all inner code (relevant only for the matched partition) outside of the outer loop. Resulting code is much more readable, and makes the indent level sane. Signed-off-by: Shmulik Ladkani Signed-off-by: Artem Bityutskiy --- drivers/mtd/cmdlinepart.c | 82 ++++++++++++++++++++------------------- 1 file changed, 43 insertions(+), 39 deletions(-) diff --git a/drivers/mtd/cmdlinepart.c b/drivers/mtd/cmdlinepart.c index aed1b8a63c9..4baab3bc613 100644 --- a/drivers/mtd/cmdlinepart.c +++ b/drivers/mtd/cmdlinepart.c @@ -308,48 +308,52 @@ static int parse_cmdline_partitions(struct mtd_info *master, return err; } + /* + * Search for the partition definition matching master->name. + * If master->name is not set, stop at first partition definition. + */ for (part = partitions; part; part = part->next) { - if ((!mtd_id) || (!strcmp(part->mtd_id, mtd_id))) { - for (i = 0, offset = 0; i < part->num_parts; i++) { - if (part->parts[i].offset == OFFSET_CONTINUOUS) - part->parts[i].offset = offset; - else - offset = part->parts[i].offset; - - if (part->parts[i].size == SIZE_REMAINING) - part->parts[i].size = master->size - offset; - - if (part->parts[i].size == 0) { - printk(KERN_WARNING ERRP - "%s: skipping zero sized partition\n", - part->mtd_id); - part->num_parts--; - memmove(&part->parts[i], - &part->parts[i + 1], - sizeof(*part->parts) * (part->num_parts - i)); - continue; - } - - if (offset + part->parts[i].size > master->size) { - printk(KERN_WARNING ERRP - "%s: partitioning exceeds flash size, truncating\n", - part->mtd_id); - part->parts[i].size = master->size - offset; - } - offset += part->parts[i].size; - } - - *pparts = kmemdup(part->parts, - sizeof(*part->parts) * part->num_parts, - GFP_KERNEL); - if (!*pparts) - return -ENOMEM; - - return part->num_parts; - } + if ((!mtd_id) || (!strcmp(part->mtd_id, mtd_id))) + break; } - return 0; + if (!part) + return 0; + + for (i = 0, offset = 0; i < part->num_parts; i++) { + if (part->parts[i].offset == OFFSET_CONTINUOUS) + part->parts[i].offset = offset; + else + offset = part->parts[i].offset; + + if (part->parts[i].size == SIZE_REMAINING) + part->parts[i].size = master->size - offset; + + if (part->parts[i].size == 0) { + printk(KERN_WARNING ERRP + "%s: skipping zero sized partition\n", + part->mtd_id); + part->num_parts--; + memmove(&part->parts[i], &part->parts[i + 1], + sizeof(*part->parts) * (part->num_parts - i)); + continue; + } + + if (offset + part->parts[i].size > master->size) { + printk(KERN_WARNING ERRP + "%s: partitioning exceeds flash size, truncating\n", + part->mtd_id); + part->parts[i].size = master->size - offset; + } + offset += part->parts[i].size; + } + + *pparts = kmemdup(part->parts, sizeof(*part->parts) * part->num_parts, + GFP_KERNEL); + if (!*pparts) + return -ENOMEM; + + return part->num_parts; } From 2d350e5adb44b3fbc3b6d7ff5b8d086e7730c9b4 Mon Sep 17 00:00:00 2001 From: Vikram Narayanan Date: Sun, 23 Sep 2012 15:18:32 +0530 Subject: [PATCH 02/96] mtd: gpmi-nand: make debug prints more clear Make the error messages more debugging friendly Signed-off-by: Vikram Narayanan Acked-by: Huang Shijie Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/gpmi-nand/gpmi-nand.c | 14 ++++++++------ 1 file changed, 8 insertions(+), 6 deletions(-) diff --git a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c index d79696b2f19..e2c56fc4574 100644 --- a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c +++ b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c @@ -222,7 +222,7 @@ void prepare_data_dma(struct gpmi_nand_data *this, enum dma_data_direction dr) ret = dma_map_sg(this->dev, sgl, 1, dr); if (ret == 0) - pr_err("map failed.\n"); + pr_err("DMA mapping failed.\n"); this->direct_dma_map_ok = false; } @@ -456,7 +456,7 @@ static int __devinit acquire_dma_channels(struct gpmi_nand_data *this) dma_chan = dma_request_channel(mask, gpmi_dma_filter, this); if (!dma_chan) { - pr_err("dma_request_channel failed.\n"); + pr_err("Failed to request DMA channel.\n"); goto acquire_err; } @@ -625,7 +625,8 @@ static int read_page_prepare(struct gpmi_nand_data *this, length, DMA_FROM_DEVICE); if (dma_mapping_error(dev, dest_phys)) { if (alt_size < length) { - pr_err("Alternate buffer is too small\n"); + pr_err("%s, Alternate buffer is too small\n", + __func__); return -ENOMEM; } goto map_failed; @@ -675,7 +676,8 @@ static int send_page_prepare(struct gpmi_nand_data *this, DMA_TO_DEVICE); if (dma_mapping_error(dev, source_phys)) { if (alt_size < length) { - pr_err("Alternate buffer is too small\n"); + pr_err("%s, Alternate buffer is too small\n", + __func__); return -ENOMEM; } goto map_failed; @@ -763,7 +765,7 @@ static int gpmi_alloc_dma_buffer(struct gpmi_nand_data *this) error_alloc: gpmi_free_dma_buffer(this); - pr_err("allocate DMA buffer ret!!\n"); + pr_err("Error allocating DMA buffers!\n"); return -ENOMEM; } @@ -1474,7 +1476,7 @@ static int gpmi_set_geometry(struct gpmi_nand_data *this) /* Set up the NFC geometry which is used by BCH. */ ret = bch_set_geometry(this); if (ret) { - pr_err("set geometry ret : %d\n", ret); + pr_err("Error setting BCH geometry : %d\n", ret); return ret; } From 12ad2be9d1db3dcce08f29bdc5415db3af58fa60 Mon Sep 17 00:00:00 2001 From: Marek Vasut Date: Mon, 24 Sep 2012 03:39:39 +0200 Subject: [PATCH 03/96] mtd: m25p80: Make fast read configurable via DT Add DT property "m25p,fast-read" that signalises the particular chip supports "fast read" opcode. Signed-off-by: Marek Vasut Signed-off-by: Artem Bityutskiy --- .../devicetree/bindings/mtd/m25p80.txt | 29 ++++++++++++++++ drivers/mtd/devices/m25p80.c | 34 ++++++++++++------- 2 files changed, 50 insertions(+), 13 deletions(-) create mode 100644 Documentation/devicetree/bindings/mtd/m25p80.txt diff --git a/Documentation/devicetree/bindings/mtd/m25p80.txt b/Documentation/devicetree/bindings/mtd/m25p80.txt new file mode 100644 index 00000000000..6d3d5760947 --- /dev/null +++ b/Documentation/devicetree/bindings/mtd/m25p80.txt @@ -0,0 +1,29 @@ +* MTD SPI driver for ST M25Pxx (and similar) serial flash chips + +Required properties: +- #address-cells, #size-cells : Must be present if the device has sub-nodes + representing partitions. +- compatible : Should be the manufacturer and the name of the chip. Bear in mind + the DT binding is not Linux-only, but in case of Linux, see the + "m25p_ids" table in drivers/mtd/devices/m25p80.c for the list of + supported chips. +- reg : Chip-Select number +- spi-max-frequency : Maximum frequency of the SPI bus the chip can operate at + +Optional properties: +- m25p,fast-read : Use the "fast read" opcode to read data from the chip instead + of the usual "read" opcode. This opcode is not supported by + all chips and support for it can not be detected at runtime. + Refer to your chips' datasheet to check if this is supported + by your chip. + +Example: + + flash: m25p80@0 { + #address-cells = <1>; + #size-cells = <1>; + compatible = "spansion,m25p80"; + reg = <0>; + spi-max-frequency = <40000000>; + m25p,fast-read; + }; diff --git a/drivers/mtd/devices/m25p80.c b/drivers/mtd/devices/m25p80.c index 03838bab1f5..82f977456b8 100644 --- a/drivers/mtd/devices/m25p80.c +++ b/drivers/mtd/devices/m25p80.c @@ -73,14 +73,6 @@ #define MAX_READY_WAIT_JIFFIES (40 * HZ) /* M25P16 specs 40s max chip erase */ #define MAX_CMD_SIZE 5 -#ifdef CONFIG_M25PXX_USE_FAST_READ -#define OPCODE_READ OPCODE_FAST_READ -#define FAST_READ_DUMMY_BYTE 1 -#else -#define OPCODE_READ OPCODE_NORM_READ -#define FAST_READ_DUMMY_BYTE 0 -#endif - #define JEDEC_MFR(_jedec_id) ((_jedec_id) >> 16) /****************************************************************************/ @@ -93,6 +85,7 @@ struct m25p { u16 addr_width; u8 erase_opcode; u8 *command; + bool fast_read; }; static inline struct m25p *mtd_to_m25p(struct mtd_info *mtd) @@ -342,6 +335,7 @@ static int m25p80_read(struct mtd_info *mtd, loff_t from, size_t len, struct m25p *flash = mtd_to_m25p(mtd); struct spi_transfer t[2]; struct spi_message m; + uint8_t opcode; pr_debug("%s: %s from 0x%08x, len %zd\n", dev_name(&flash->spi->dev), __func__, (u32)from, len); @@ -354,7 +348,7 @@ static int m25p80_read(struct mtd_info *mtd, loff_t from, size_t len, * Should add 1 byte DUMMY_BYTE. */ t[0].tx_buf = flash->command; - t[0].len = m25p_cmdsz(flash) + FAST_READ_DUMMY_BYTE; + t[0].len = m25p_cmdsz(flash) + (flash->fast_read ? 1 : 0); spi_message_add_tail(&t[0], &m); t[1].rx_buf = buf; @@ -376,12 +370,14 @@ static int m25p80_read(struct mtd_info *mtd, loff_t from, size_t len, */ /* Set up the write data buffer. */ - flash->command[0] = OPCODE_READ; + opcode = flash->fast_read ? OPCODE_FAST_READ : OPCODE_NORM_READ; + flash->command[0] = opcode; m25p_addr2cmd(flash, from, flash->command); spi_sync(flash->spi, &m); - *retlen = m.actual_length - m25p_cmdsz(flash) - FAST_READ_DUMMY_BYTE; + *retlen = m.actual_length - m25p_cmdsz(flash) - + (flash->fast_read ? 1 : 0); mutex_unlock(&flash->lock); @@ -809,9 +805,10 @@ static int __devinit m25p_probe(struct spi_device *spi) struct flash_info *info; unsigned i; struct mtd_part_parser_data ppdata; + struct device_node __maybe_unused *np = spi->dev.of_node; #ifdef CONFIG_MTD_OF_PARTS - if (!of_device_is_available(spi->dev.of_node)) + if (!of_device_is_available(np)) return -ENODEV; #endif @@ -863,7 +860,8 @@ static int __devinit m25p_probe(struct spi_device *spi) flash = kzalloc(sizeof *flash, GFP_KERNEL); if (!flash) return -ENOMEM; - flash->command = kmalloc(MAX_CMD_SIZE + FAST_READ_DUMMY_BYTE, GFP_KERNEL); + flash->command = kmalloc(MAX_CMD_SIZE + (flash->fast_read ? 1 : 0), + GFP_KERNEL); if (!flash->command) { kfree(flash); return -ENOMEM; @@ -920,6 +918,16 @@ static int __devinit m25p_probe(struct spi_device *spi) flash->page_size = info->page_size; flash->mtd.writebufsize = flash->page_size; + flash->fast_read = false; +#ifdef CONFIG_OF + if (np && of_property_read_bool(np, "m25p,fast-read")) + flash->fast_read = true; +#endif + +#ifdef CONFIG_M25PXX_USE_FAST_READ + flash->fast_read = true; +#endif + if (info->addr_width) flash->addr_width = info->addr_width; else { From 0aa87b7563f138149429f35727b975ec25a494a6 Mon Sep 17 00:00:00 2001 From: Matthieu CASTET Date: Tue, 25 Sep 2012 11:05:27 +0200 Subject: [PATCH 04/96] mtd: m25p80: add support for the windbond w25q256 chip Signed-off-by: Matthieu CASTET Signed-off-by: Artem Bityutskiy --- drivers/mtd/devices/m25p80.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/mtd/devices/m25p80.c b/drivers/mtd/devices/m25p80.c index 82f977456b8..7e2d8f9525b 100644 --- a/drivers/mtd/devices/m25p80.c +++ b/drivers/mtd/devices/m25p80.c @@ -161,6 +161,7 @@ static inline int set_4byte(struct m25p *flash, u32 jedec_id, int enable) { switch (JEDEC_MFR(jedec_id)) { case CFI_MFR_MACRONIX: + case 0xEF /* winbond */: flash->command[0] = enable ? OPCODE_EN4B : OPCODE_EX4B; return spi_write(flash->spi, flash->command, 1); default: @@ -741,6 +742,7 @@ static const struct spi_device_id m25p_ids[] = { { "w25x64", INFO(0xef3017, 0, 64 * 1024, 128, SECT_4K) }, { "w25q64", INFO(0xef4017, 0, 64 * 1024, 128, SECT_4K) }, { "w25q80", INFO(0xef5014, 0, 64 * 1024, 16, SECT_4K) }, + { "w25q256", INFO(0xef4019, 0, 64 * 1024, 512, SECT_4K) }, /* Catalyst / On Semiconductor -- non-JEDEC */ { "cat25c11", CAT25_INFO( 16, 8, 16, 1) }, From ecbcbc7b75bb1b7596fca2d588d2f7539dc4e581 Mon Sep 17 00:00:00 2001 From: Sachin Kamat Date: Tue, 25 Sep 2012 15:27:13 +0530 Subject: [PATCH 05/96] mtd: ofpart: Fix incorrect NULL check in parse_ofoldpart_partitions() The pointer returned by kzalloc should be tested for NULL to avoid potential NULL pointer dereference later. Incorrect pointer was being tested for NULL. Bug introduced by commit fbcf62a3 (mtd: physmap_of: move parse_obsolete_partitions to become separate parser). This patch fixes this bug. Signed-off-by: Sachin Kamat Cc: stable@vger.kernel.org [3.2+] Signed-off-by: Artem Bityutskiy --- drivers/mtd/ofpart.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/mtd/ofpart.c b/drivers/mtd/ofpart.c index 64be8f0848b..d9127e2ed80 100644 --- a/drivers/mtd/ofpart.c +++ b/drivers/mtd/ofpart.c @@ -121,7 +121,7 @@ static int parse_ofoldpart_partitions(struct mtd_info *master, nr_parts = plen / sizeof(part[0]); *pparts = kzalloc(nr_parts * sizeof(*(*pparts)), GFP_KERNEL); - if (!pparts) + if (!*pparts) return -ENOMEM; names = of_get_property(dp, "partition-names", &plen); From 30fad64325ba368ffe1f92bd37f4b96c1fa4da83 Mon Sep 17 00:00:00 2001 From: Brian Norris Date: Wed, 26 Sep 2012 16:15:27 -0700 Subject: [PATCH 06/96] mtd: fsl_elbc_nand: remove unnecessary badblock_pattern Since the introduction of nand_create_default_bbt_descr() (now known as nand_create_badblock_pattern()) in commit 58373ff0afff4cc8ac40608872995f4d87eb72ec nand_chip.badblock_pattern will be dynamically calculated to the same 1-byte-length pattern that is required by fsl_elbc_nand. This custom badblock_pattern is no longer needed, then, and its removal may help facilitate further nand_bbt.c/nand_base.c cleanup in the future (one down, many to go?) Anyway, with nand_bbt.c fixed, this effectively reverts: commit 452db2724351ff3d9416a183a7955e00ab4e6ab4 [MTD] [NAND] fsl_elbc_nand: fix OOB workability for large page NAND chips Signed-off-by: Brian Norris Cc: Scott Wood Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/fsl_elbc_nand.c | 15 --------------- 1 file changed, 15 deletions(-) diff --git a/drivers/mtd/nand/fsl_elbc_nand.c b/drivers/mtd/nand/fsl_elbc_nand.c index cc1480a5e4c..4c4d3e5bca1 100644 --- a/drivers/mtd/nand/fsl_elbc_nand.c +++ b/drivers/mtd/nand/fsl_elbc_nand.c @@ -108,20 +108,6 @@ static struct nand_ecclayout fsl_elbc_oob_lp_eccm1 = { .oobfree = { {1, 7}, {11, 13}, {27, 13}, {43, 13}, {59, 5} }, }; -/* - * fsl_elbc_oob_lp_eccm* specify that LP NAND's OOB free area starts at offset - * 1, so we have to adjust bad block pattern. This pattern should be used for - * x8 chips only. So far hardware does not support x16 chips anyway. - */ -static u8 scan_ff_pattern[] = { 0xff, }; - -static struct nand_bbt_descr largepage_memorybased = { - .options = 0, - .offs = 0, - .len = 1, - .pattern = scan_ff_pattern, -}; - /* * ELBC may use HW ECC, so that OOB offsets, that NAND core uses for bbt, * interfere with ECC positions, that's why we implement our own descriptors. @@ -699,7 +685,6 @@ static int fsl_elbc_chip_init_tail(struct mtd_info *mtd) chip->ecc.layout = (priv->fmr & FMR_ECCM) ? &fsl_elbc_oob_lp_eccm1 : &fsl_elbc_oob_lp_eccm0; - chip->badblock_pattern = &largepage_memorybased; } } else { dev_err(priv->dev, From 2a0a288ec258bd38d8855fad9419aeb45b7e8499 Mon Sep 17 00:00:00 2001 From: Dinh Nguyen Date: Thu, 27 Sep 2012 10:58:05 -0600 Subject: [PATCH 07/96] mtd: denali: split the generic driver and PCI layer The Denali controller can also be found in SoC devices attached to a simple bus. Move the PCI specific parts into denali_pci so that we can add a denali_dt that uses the same driver but for a device tree driver instead of a PCI based device. Signed-off-by: Jamie Iles Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/Kconfig | 11 ++- drivers/mtd/nand/Makefile | 1 + drivers/mtd/nand/denali.c | 162 +++++++--------------------------- drivers/mtd/nand/denali.h | 4 + drivers/mtd/nand/denali_pci.c | 144 ++++++++++++++++++++++++++++++ 5 files changed, 188 insertions(+), 134 deletions(-) create mode 100644 drivers/mtd/nand/denali_pci.c diff --git a/drivers/mtd/nand/Kconfig b/drivers/mtd/nand/Kconfig index 4883139460b..5102e87f8df 100644 --- a/drivers/mtd/nand/Kconfig +++ b/drivers/mtd/nand/Kconfig @@ -57,8 +57,15 @@ config MTD_NAND_AUTCPU12 access the SmartMediaCard. config MTD_NAND_DENALI - depends on PCI + tristate "Support Denali NAND controller" + help + Enable support for the Denali NAND controller. This should be + combined with either the PCI or platform drivers to provide device + registration. + +config MTD_NAND_DENALI_PCI tristate "Support Denali NAND controller on Intel Moorestown" + depends on PCI && MTD_NAND_DENALI help Enable the driver for NAND flash on Intel Moorestown, using the Denali NAND controller core. @@ -66,7 +73,7 @@ config MTD_NAND_DENALI config MTD_NAND_DENALI_SCRATCH_REG_ADDR hex "Denali NAND size scratch register address" default "0xFF108018" - depends on MTD_NAND_DENALI + depends on MTD_NAND_DENALI_PCI help Some platforms place the NAND chip size in a scratch register because (some versions of) the driver aren't able to automatically diff --git a/drivers/mtd/nand/Makefile b/drivers/mtd/nand/Makefile index 2cbd0916b73..96a6171c9d8 100644 --- a/drivers/mtd/nand/Makefile +++ b/drivers/mtd/nand/Makefile @@ -13,6 +13,7 @@ obj-$(CONFIG_MTD_NAND_SPIA) += spia.o obj-$(CONFIG_MTD_NAND_AMS_DELTA) += ams-delta.o obj-$(CONFIG_MTD_NAND_AUTCPU12) += autcpu12.o obj-$(CONFIG_MTD_NAND_DENALI) += denali.o +obj-$(CONFIG_MTD_NAND_DENALI_PCI) += denali_pci.o obj-$(CONFIG_MTD_NAND_AU1550) += au1550nd.o obj-$(CONFIG_MTD_NAND_BF5XX) += bf5xx_nand.o obj-$(CONFIG_MTD_NAND_PPCHAMELEONEVB) += ppchameleonevb.o diff --git a/drivers/mtd/nand/denali.c b/drivers/mtd/nand/denali.c index e706a237170..0c8bb6bf842 100644 --- a/drivers/mtd/nand/denali.c +++ b/drivers/mtd/nand/denali.c @@ -16,14 +16,12 @@ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. * */ - #include #include #include #include #include #include -#include #include #include @@ -89,13 +87,6 @@ MODULE_PARM_DESC(onfi_timing_mode, "Overrides default ONFI setting." * format the bank into the proper bits for the controller */ #define BANK(x) ((x) << 24) -/* List of platforms this NAND controller has be integrated into */ -static const struct pci_device_id denali_pci_ids[] = { - { PCI_VDEVICE(INTEL, 0x0701), INTEL_CE4100 }, - { PCI_VDEVICE(INTEL, 0x0809), INTEL_MRST }, - { /* end: all zeroes */ } -}; - /* forward declarations */ static void clear_interrupts(struct denali_nand_info *denali); static uint32_t wait_for_irq(struct denali_nand_info *denali, @@ -699,7 +690,7 @@ static uint32_t wait_for_irq(struct denali_nand_info *denali, uint32_t irq_mask) if (comp_res == 0) { /* timeout */ - printk(KERN_ERR "timeout occurred, status = 0x%x, mask = 0x%x\n", + pr_err("timeout occurred, status = 0x%x, mask = 0x%x\n", intr_status, irq_mask); intr_status = 0; @@ -1305,8 +1296,7 @@ static void denali_cmdfunc(struct mtd_info *mtd, unsigned int cmd, int col, /* TODO: Read OOB data */ break; default: - printk(KERN_ERR ": unsupported command" - " received 0x%x\n", cmd); + pr_err(": unsupported command received 0x%x\n", cmd); break; } } @@ -1425,107 +1415,48 @@ void denali_drv_init(struct denali_nand_info *denali) denali->irq_status = 0; } -/* driver entry point */ -static int denali_pci_probe(struct pci_dev *dev, const struct pci_device_id *id) +int denali_init(struct denali_nand_info *denali) { - int ret = -ENODEV; - resource_size_t csr_base, mem_base; - unsigned long csr_len, mem_len; - struct denali_nand_info *denali; + int ret; - denali = kzalloc(sizeof(*denali), GFP_KERNEL); - if (!denali) - return -ENOMEM; - - ret = pci_enable_device(dev); - if (ret) { - printk(KERN_ERR "Spectra: pci_enable_device failed.\n"); - goto failed_alloc_memery; - } - - if (id->driver_data == INTEL_CE4100) { + if (denali->platform == INTEL_CE4100) { /* Due to a silicon limitation, we can only support * ONFI timing mode 1 and below. */ if (onfi_timing_mode < -1 || onfi_timing_mode > 1) { - printk(KERN_ERR "Intel CE4100 only supports" - " ONFI timing mode 1 or below\n"); - ret = -EINVAL; - goto failed_enable_dev; - } - denali->platform = INTEL_CE4100; - mem_base = pci_resource_start(dev, 0); - mem_len = pci_resource_len(dev, 1); - csr_base = pci_resource_start(dev, 1); - csr_len = pci_resource_len(dev, 1); - } else { - denali->platform = INTEL_MRST; - csr_base = pci_resource_start(dev, 0); - csr_len = pci_resource_len(dev, 0); - mem_base = pci_resource_start(dev, 1); - mem_len = pci_resource_len(dev, 1); - if (!mem_len) { - mem_base = csr_base + csr_len; - mem_len = csr_len; + pr_err("Intel CE4100 only supports ONFI timing mode 1 or below\n"); + return -EINVAL; } } /* Is 32-bit DMA supported? */ - ret = dma_set_mask(&dev->dev, DMA_BIT_MASK(32)); + ret = dma_set_mask(denali->dev, DMA_BIT_MASK(32)); if (ret) { - printk(KERN_ERR "Spectra: no usable DMA configuration\n"); - goto failed_enable_dev; + pr_err("Spectra: no usable DMA configuration\n"); + return ret; } - denali->buf.dma_buf = dma_map_single(&dev->dev, denali->buf.buf, + denali->buf.dma_buf = dma_map_single(denali->dev, denali->buf.buf, DENALI_BUF_SIZE, DMA_BIDIRECTIONAL); - if (dma_mapping_error(&dev->dev, denali->buf.dma_buf)) { - dev_err(&dev->dev, "Spectra: failed to map DMA buffer\n"); - goto failed_enable_dev; + if (dma_mapping_error(denali->dev, denali->buf.dma_buf)) { + dev_err(denali->dev, "Spectra: failed to map DMA buffer\n"); + return -EIO; } - - pci_set_master(dev); - denali->dev = &dev->dev; - denali->mtd.dev.parent = &dev->dev; - - ret = pci_request_regions(dev, DENALI_NAND_NAME); - if (ret) { - printk(KERN_ERR "Spectra: Unable to request memory regions\n"); - goto failed_dma_map; - } - - denali->flash_reg = ioremap_nocache(csr_base, csr_len); - if (!denali->flash_reg) { - printk(KERN_ERR "Spectra: Unable to remap memory region\n"); - ret = -ENOMEM; - goto failed_req_regions; - } - - denali->flash_mem = ioremap_nocache(mem_base, mem_len); - if (!denali->flash_mem) { - printk(KERN_ERR "Spectra: ioremap_nocache failed!"); - ret = -ENOMEM; - goto failed_remap_reg; - } - + denali->mtd.dev.parent = denali->dev; denali_hw_init(denali); denali_drv_init(denali); /* denali_isr register is done after all the hardware * initilization is finished*/ - if (request_irq(dev->irq, denali_isr, IRQF_SHARED, + if (request_irq(denali->irq, denali_isr, IRQF_SHARED, DENALI_NAND_NAME, denali)) { - printk(KERN_ERR "Spectra: Unable to allocate IRQ\n"); - ret = -ENODEV; - goto failed_remap_mem; + pr_err("Spectra: Unable to allocate IRQ\n"); + return -ENODEV; } /* now that our ISR is registered, we can enable interrupts */ denali_set_intr_modes(denali, true); - - pci_set_drvdata(dev, denali); - denali->mtd.name = "denali-nand"; denali->mtd.owner = THIS_MODULE; denali->mtd.priv = &denali->nand; @@ -1549,8 +1480,7 @@ static int denali_pci_probe(struct pci_dev *dev, const struct pci_device_id *id) */ if (denali->mtd.writesize > NAND_MAX_PAGESIZE + NAND_MAX_OOBSIZE) { ret = -ENODEV; - printk(KERN_ERR "Spectra: device size not supported by this " - "version of MTD."); + pr_err("Spectra: device size not supported by this version of MTD."); goto failed_req_irq; } @@ -1602,8 +1532,8 @@ static int denali_pci_probe(struct pci_dev *dev, const struct pci_device_id *id) } else if (denali->mtd.oobsize < (denali->bbtskipbytes + ECC_8BITS * (denali->mtd.writesize / ECC_SECTOR_SIZE))) { - printk(KERN_ERR "Your NAND chip OOB is not large enough to" - " contain 8bit ECC correction codes"); + pr_err("Your NAND chip OOB is not large enough to \ + contain 8bit ECC correction codes"); goto failed_req_irq; } else { denali->nand.ecc.strength = 8; @@ -1655,56 +1585,24 @@ static int denali_pci_probe(struct pci_dev *dev, const struct pci_device_id *id) ret = mtd_device_register(&denali->mtd, NULL, 0); if (ret) { - dev_err(&dev->dev, "Spectra: Failed to register MTD: %d\n", + dev_err(denali->dev, "Spectra: Failed to register MTD: %d\n", ret); goto failed_req_irq; } return 0; failed_req_irq: - denali_irq_cleanup(dev->irq, denali); -failed_remap_mem: - iounmap(denali->flash_mem); -failed_remap_reg: - iounmap(denali->flash_reg); -failed_req_regions: - pci_release_regions(dev); -failed_dma_map: - dma_unmap_single(&dev->dev, denali->buf.dma_buf, DENALI_BUF_SIZE, - DMA_BIDIRECTIONAL); -failed_enable_dev: - pci_disable_device(dev); -failed_alloc_memery: - kfree(denali); + denali_irq_cleanup(denali->irq, denali); + return ret; } +EXPORT_SYMBOL(denali_init); /* driver exit point */ -static void denali_pci_remove(struct pci_dev *dev) +void denali_remove(struct denali_nand_info *denali) { - struct denali_nand_info *denali = pci_get_drvdata(dev); - - nand_release(&denali->mtd); - - denali_irq_cleanup(dev->irq, denali); - - iounmap(denali->flash_reg); - iounmap(denali->flash_mem); - pci_release_regions(dev); - pci_disable_device(dev); - dma_unmap_single(&dev->dev, denali->buf.dma_buf, DENALI_BUF_SIZE, - DMA_BIDIRECTIONAL); - pci_set_drvdata(dev, NULL); - kfree(denali); + denali_irq_cleanup(denali->irq, denali); + dma_unmap_single(denali->dev, denali->buf.dma_buf, DENALI_BUF_SIZE, + DMA_BIDIRECTIONAL); } - -MODULE_DEVICE_TABLE(pci, denali_pci_ids); - -static struct pci_driver denali_pci_driver = { - .name = DENALI_NAND_NAME, - .id_table = denali_pci_ids, - .probe = denali_pci_probe, - .remove = denali_pci_remove, -}; - -module_pci_driver(denali_pci_driver); +EXPORT_SYMBOL(denali_remove); diff --git a/drivers/mtd/nand/denali.h b/drivers/mtd/nand/denali.h index fabb9d56b39..e5aa99583e4 100644 --- a/drivers/mtd/nand/denali.h +++ b/drivers/mtd/nand/denali.h @@ -487,6 +487,7 @@ struct denali_nand_info { uint32_t irq_status; int irq_debug_array[32]; int idx; + int irq; uint32_t devnum; /* represent how many nands connected */ uint32_t fwblks; /* represent how many blocks FW used */ @@ -496,4 +497,7 @@ struct denali_nand_info { uint32_t max_banks; }; +extern int denali_init(struct denali_nand_info *denali); +extern void denali_remove(struct denali_nand_info *denali); + #endif /*_LLD_NAND_*/ diff --git a/drivers/mtd/nand/denali_pci.c b/drivers/mtd/nand/denali_pci.c new file mode 100644 index 00000000000..ea074e6c762 --- /dev/null +++ b/drivers/mtd/nand/denali_pci.c @@ -0,0 +1,144 @@ +/* + * NAND Flash Controller Device Driver + * Copyright © 2009-2010, Intel Corporation and its suppliers. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + */ +#include +#include +#include +#include + +#include "denali.h" + +#define DENALI_NAND_NAME "denali-nand-pci" + +/* List of platforms this NAND controller has be integrated into */ +static DEFINE_PCI_DEVICE_TABLE(denali_pci_ids) = { + { PCI_VDEVICE(INTEL, 0x0701), INTEL_CE4100 }, + { PCI_VDEVICE(INTEL, 0x0809), INTEL_MRST }, + { /* end: all zeroes */ } +}; +MODULE_DEVICE_TABLE(pci, denali_pci_ids); + +static int denali_pci_probe(struct pci_dev *dev, const struct pci_device_id *id) +{ + int ret = -ENODEV; + resource_size_t csr_base, mem_base; + unsigned long csr_len, mem_len; + struct denali_nand_info *denali; + + denali = kzalloc(sizeof(*denali), GFP_KERNEL); + if (!denali) + return -ENOMEM; + + ret = pci_enable_device(dev); + if (ret) { + pr_err("Spectra: pci_enable_device failed.\n"); + goto failed_alloc_memery; + } + + if (id->driver_data == INTEL_CE4100) { + denali->platform = INTEL_CE4100; + mem_base = pci_resource_start(dev, 0); + mem_len = pci_resource_len(dev, 1); + csr_base = pci_resource_start(dev, 1); + csr_len = pci_resource_len(dev, 1); + } else { + denali->platform = INTEL_MRST; + csr_base = pci_resource_start(dev, 0); + csr_len = pci_resource_len(dev, 0); + mem_base = pci_resource_start(dev, 1); + mem_len = pci_resource_len(dev, 1); + if (!mem_len) { + mem_base = csr_base + csr_len; + mem_len = csr_len; + } + } + + pci_set_master(dev); + denali->dev = &dev->dev; + denali->irq = dev->irq; + + ret = pci_request_regions(dev, DENALI_NAND_NAME); + if (ret) { + pr_err("Spectra: Unable to request memory regions\n"); + goto failed_enable_dev; + } + + denali->flash_reg = ioremap_nocache(csr_base, csr_len); + if (!denali->flash_reg) { + pr_err("Spectra: Unable to remap memory region\n"); + ret = -ENOMEM; + goto failed_req_regions; + } + + denali->flash_mem = ioremap_nocache(mem_base, mem_len); + if (!denali->flash_mem) { + pr_err("Spectra: ioremap_nocache failed!"); + ret = -ENOMEM; + goto failed_remap_reg; + } + + ret = denali_init(denali); + if (ret) + goto failed_remap_mem; + + pci_set_drvdata(dev, denali); + + return 0; + +failed_remap_mem: + iounmap(denali->flash_mem); +failed_remap_reg: + iounmap(denali->flash_reg); +failed_req_regions: + pci_release_regions(dev); +failed_enable_dev: + pci_disable_device(dev); +failed_alloc_memery: + kfree(denali); + + return ret; +} + +/* driver exit point */ +static void denali_pci_remove(struct pci_dev *dev) +{ + struct denali_nand_info *denali = pci_get_drvdata(dev); + + denali_remove(denali); + iounmap(denali->flash_reg); + iounmap(denali->flash_mem); + pci_release_regions(dev); + pci_disable_device(dev); + pci_set_drvdata(dev, NULL); + kfree(denali); +} + +static struct pci_driver denali_pci_driver = { + .name = DENALI_NAND_NAME, + .id_table = denali_pci_ids, + .probe = denali_pci_probe, + .remove = denali_pci_remove, +}; + +static int __devinit denali_init_pci(void) +{ + pr_info("Spectra MTD driver built on %s @ %s\n", __DATE__, __TIME__); + return pci_register_driver(&denali_pci_driver); +} +module_init(denali_init_pci); + +static void __devexit denali_exit_pci(void) +{ + pci_unregister_driver(&denali_pci_driver); +} +module_exit(denali_exit_pci); From 30f9f2fb7ba032665c8cea7694c815f18ed47a34 Mon Sep 17 00:00:00 2001 From: Dinh Nguyen Date: Thu, 27 Sep 2012 10:58:06 -0600 Subject: [PATCH 08/96] mtd: denali: add a DT driver Add a device tree version of the Denali NAND driver. Based on an original patch from Jamie Iles to add a MMIO version of this driver. Signed-off-by: Dinh Nguyen Signed-off-by: Artem Bityutskiy --- .../devicetree/bindings/mtd/denali-nand.txt | 23 +++ drivers/mtd/nand/Kconfig | 9 +- drivers/mtd/nand/Makefile | 1 + drivers/mtd/nand/denali.h | 1 + drivers/mtd/nand/denali_dt.c | 167 ++++++++++++++++++ 5 files changed, 200 insertions(+), 1 deletion(-) create mode 100644 Documentation/devicetree/bindings/mtd/denali-nand.txt create mode 100644 drivers/mtd/nand/denali_dt.c diff --git a/Documentation/devicetree/bindings/mtd/denali-nand.txt b/Documentation/devicetree/bindings/mtd/denali-nand.txt new file mode 100644 index 00000000000..b04d03a1d49 --- /dev/null +++ b/Documentation/devicetree/bindings/mtd/denali-nand.txt @@ -0,0 +1,23 @@ +* Denali NAND controller + +Required properties: + - compatible : should be "denali,denali-nand-dt" + - reg : should contain registers location and length for data and reg. + - reg-names: Should contain the reg names "nand_data" and "denali_reg" + - interrupts : The interrupt number. + - dm-mask : DMA bit mask + +The device tree may optionally contain sub-nodes describing partitions of the +address space. See partition.txt for more detail. + +Examples: + +nand: nand@ff900000 { + #address-cells = <1>; + #size-cells = <1>; + compatible = "denali,denali-nand-dt"; + reg = <0xff900000 0x100000>, <0xffb80000 0x10000>; + reg-names = "nand_data", "denali_reg"; + interrupts = <0 144 4>; + dma-mask = <0xffffffff>; +}; diff --git a/drivers/mtd/nand/Kconfig b/drivers/mtd/nand/Kconfig index 5102e87f8df..ee803d611e4 100644 --- a/drivers/mtd/nand/Kconfig +++ b/drivers/mtd/nand/Kconfig @@ -69,7 +69,14 @@ config MTD_NAND_DENALI_PCI help Enable the driver for NAND flash on Intel Moorestown, using the Denali NAND controller core. - + +config MTD_NAND_DENALI_DT + tristate "Support Denali NAND controller as a DT device" + depends on HAVE_CLK && MTD_NAND_DENALI + help + Enable the driver for NAND flash on platforms using a Denali NAND + controller as a DT device. + config MTD_NAND_DENALI_SCRATCH_REG_ADDR hex "Denali NAND size scratch register address" default "0xFF108018" diff --git a/drivers/mtd/nand/Makefile b/drivers/mtd/nand/Makefile index 96a6171c9d8..38358c90771 100644 --- a/drivers/mtd/nand/Makefile +++ b/drivers/mtd/nand/Makefile @@ -14,6 +14,7 @@ obj-$(CONFIG_MTD_NAND_AMS_DELTA) += ams-delta.o obj-$(CONFIG_MTD_NAND_AUTCPU12) += autcpu12.o obj-$(CONFIG_MTD_NAND_DENALI) += denali.o obj-$(CONFIG_MTD_NAND_DENALI_PCI) += denali_pci.o +obj-$(CONFIG_MTD_NAND_DENALI_DT) += denali_dt.o obj-$(CONFIG_MTD_NAND_AU1550) += au1550nd.o obj-$(CONFIG_MTD_NAND_BF5XX) += bf5xx_nand.o obj-$(CONFIG_MTD_NAND_PPCHAMELEONEVB) += ppchameleonevb.o diff --git a/drivers/mtd/nand/denali.h b/drivers/mtd/nand/denali.h index e5aa99583e4..cec5712862c 100644 --- a/drivers/mtd/nand/denali.h +++ b/drivers/mtd/nand/denali.h @@ -466,6 +466,7 @@ struct nand_buf { #define INTEL_CE4100 1 #define INTEL_MRST 2 +#define DT 3 struct denali_nand_info { struct mtd_info mtd; diff --git a/drivers/mtd/nand/denali_dt.c b/drivers/mtd/nand/denali_dt.c new file mode 100644 index 00000000000..fbabbaa0437 --- /dev/null +++ b/drivers/mtd/nand/denali_dt.c @@ -0,0 +1,167 @@ +/* + * NAND Flash Controller Device Driver for DT + * + * Copyright © 2011, Picochip. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + */ +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "denali.h" + +struct denali_dt { + struct denali_nand_info denali; + struct clk *clk; +}; + +static void __iomem *request_and_map(struct device *dev, + const struct resource *res) +{ + void __iomem *ptr; + + if (!devm_request_mem_region(dev, res->start, resource_size(res), + "denali-dt")) { + dev_err(dev, "unable to request %s\n", res->name); + return NULL; + } + + ptr = devm_ioremap_nocache(dev, res->start, resource_size(res)); + if (!res) + dev_err(dev, "ioremap_nocache of %s failed!", res->name); + + return ptr; +} + +static const struct of_device_id denali_nand_dt_ids[] = { + { .compatible = "denali,denali-nand-dt" }, + { /* sentinel */ } + }; + +MODULE_DEVICE_TABLE(of, denali_nand_dt_ids); + +static u64 denali_dma_mask; + +static int __devinit denali_dt_probe(struct platform_device *ofdev) +{ + struct resource *denali_reg, *nand_data; + struct denali_dt *dt; + struct denali_nand_info *denali; + int ret; + const struct of_device_id *of_id; + + of_id = of_match_device(denali_nand_dt_ids, &ofdev->dev); + if (of_id) { + ofdev->id_entry = of_id->data; + } else { + pr_err("Failed to find the right device id.\n"); + return -ENOMEM; + } + + dt = devm_kzalloc(&ofdev->dev, sizeof(*dt), GFP_KERNEL); + if (!dt) + return -ENOMEM; + denali = &dt->denali; + + denali_reg = platform_get_resource_byname(ofdev, IORESOURCE_MEM, "denali_reg"); + nand_data = platform_get_resource_byname(ofdev, IORESOURCE_MEM, "nand_data"); + if (!denali_reg || !nand_data) { + dev_err(&ofdev->dev, "resources not completely defined\n"); + return -EINVAL; + } + + denali->platform = DT; + denali->dev = &ofdev->dev; + denali->irq = platform_get_irq(ofdev, 0); + if (denali->irq < 0) { + dev_err(&ofdev->dev, "no irq defined\n"); + return -ENXIO; + } + + denali->flash_reg = request_and_map(&ofdev->dev, denali_reg); + if (!denali->flash_reg) + return -ENOMEM; + + denali->flash_mem = request_and_map(&ofdev->dev, nand_data); + if (!denali->flash_mem) + return -ENOMEM; + + if (!of_property_read_u32(ofdev->dev.of_node, + "dma-mask", (u32 *)&denali_dma_mask)) { + denali->dev->dma_mask = &denali_dma_mask; + } else { + denali->dev->dma_mask = NULL; + } + + dt->clk = clk_get(&ofdev->dev, NULL); + if (IS_ERR(dt->clk)) { + dev_err(&ofdev->dev, "no clk available\n"); + return PTR_ERR(dt->clk); + } + clk_prepare_enable(dt->clk); + + ret = denali_init(denali); + if (ret) + goto out_disable_clk; + + platform_set_drvdata(ofdev, dt); + return 0; + +out_disable_clk: + clk_disable_unprepare(dt->clk); + clk_put(dt->clk); + + return ret; +} + +static int __devexit denali_dt_remove(struct platform_device *ofdev) +{ + struct denali_dt *dt = platform_get_drvdata(ofdev); + + denali_remove(&dt->denali); + clk_disable(dt->clk); + clk_put(dt->clk); + + return 0; +} + +static struct platform_driver denali_dt_driver = { + .probe = denali_dt_probe, + .remove = __devexit_p(denali_dt_remove), + .driver = { + .name = "denali-nand-dt", + .owner = THIS_MODULE, + .of_match_table = of_match_ptr(denali_nand_dt_ids), + }, +}; + +static int __init denali_init_dt(void) +{ + return platform_driver_register(&denali_dt_driver); +} +module_init(denali_init_dt); + +static void __exit denali_exit_dt(void) +{ + platform_driver_unregister(&denali_dt_driver); +} +module_exit(denali_exit_dt); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Jamie Iles"); +MODULE_DESCRIPTION("DT driver for Denali NAND controller"); From 41863f730ff8aad86c038aabee1292d1b04c8876 Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Thu, 4 Oct 2012 09:28:29 +0200 Subject: [PATCH 09/96] ARM: nomadik: switch over to using the FSMC driver The Nomadik NAND driver is really just a subset of the existing FSMC driver, so let's switch over to using that driver instead, since it handles more variants of this chip. The callbacks for setting up the chip is doing stuff now handled by the FSMC driver. Signed-off-by: Linus Walleij Acked-by: Alessandro Rubini Signed-off-by: Artem Bityutskiy --- arch/arm/configs/nhk8815_defconfig | 2 +- arch/arm/mach-nomadik/board-nhk8815.c | 66 ++++++++++------------- arch/arm/mach-nomadik/include/mach/fsmc.h | 29 ---------- drivers/clk/clk-nomadik.c | 1 + 4 files changed, 31 insertions(+), 67 deletions(-) delete mode 100644 arch/arm/mach-nomadik/include/mach/fsmc.h diff --git a/arch/arm/configs/nhk8815_defconfig b/arch/arm/configs/nhk8815_defconfig index 240b25eea56..86cfd2959c4 100644 --- a/arch/arm/configs/nhk8815_defconfig +++ b/arch/arm/configs/nhk8815_defconfig @@ -57,7 +57,7 @@ CONFIG_MTD_CHAR=y CONFIG_MTD_BLOCK=y CONFIG_MTD_NAND=y CONFIG_MTD_NAND_ECC_SMC=y -CONFIG_MTD_NAND_NOMADIK=y +CONFIG_MTD_NAND_FSMC=y CONFIG_MTD_ONENAND=y CONFIG_MTD_ONENAND_VERIFY_WRITE=y CONFIG_MTD_ONENAND_GENERIC=y diff --git a/arch/arm/mach-nomadik/board-nhk8815.c b/arch/arm/mach-nomadik/board-nhk8815.c index bfa1eab91f4..a105d1b7975 100644 --- a/arch/arm/mach-nomadik/board-nhk8815.c +++ b/arch/arm/mach-nomadik/board-nhk8815.c @@ -19,6 +19,7 @@ #include #include #include +#include #include #include #include @@ -36,7 +37,6 @@ #include #include -#include #include #include "cpu-8815.h" @@ -48,36 +48,18 @@ /* These addresses span 16MB, so use three individual pages */ static struct resource nhk8815_nand_resources[] = { { - .name = "nand_addr", - .start = NAND_IO_ADDR, - .end = NAND_IO_ADDR + 0xfff, - .flags = IORESOURCE_MEM, - }, { - .name = "nand_cmd", - .start = NAND_IO_CMD, - .end = NAND_IO_CMD + 0xfff, - .flags = IORESOURCE_MEM, - }, { .name = "nand_data", - .start = NAND_IO_DATA, - .end = NAND_IO_DATA + 0xfff, + .start = 0x40000000, + .end = 0x40000000 + SZ_16K - 1, .flags = IORESOURCE_MEM, - } + }, { + .name = "fsmc_regs", + .start = NOMADIK_FSMC_BASE, + .end = NOMADIK_FSMC_BASE + SZ_4K - 1, + .flags = IORESOURCE_MEM, + }, }; -static int nhk8815_nand_init(void) -{ - /* FSMC setup for nand chip select (8-bit nand in 8815NHK) */ - writel(0x0000000E, FSMC_PCR(0)); - writel(0x000D0A00, FSMC_PMEM(0)); - writel(0x00100A00, FSMC_PATT(0)); - - /* enable access to the chip select area */ - writel(readl(FSMC_PCR(0)) | 0x04, FSMC_PCR(0)); - - return 0; -} - /* * These partitions are the same as those used in the 2.6.20 release * shipped by the vendor; the first two partitions are mandated @@ -111,20 +93,30 @@ static struct mtd_partition nhk8815_partitions[] = { } }; -static struct nomadik_nand_platform_data nhk8815_nand_data = { - .parts = nhk8815_partitions, - .nparts = ARRAY_SIZE(nhk8815_partitions), - .options = NAND_COPYBACK | NAND_CACHEPRG | NAND_NO_PADDING, - .init = nhk8815_nand_init, +static struct fsmc_nand_timings nhk8815_nand_timings = { + .thiz = 0, + .thold = 0x10, + .twait = 0x0A, + .tset = 0, +}; + +static struct fsmc_nand_platform_data nhk8815_nand_platform_data = { + .nand_timings = &nhk8815_nand_timings, + .partitions = nhk8815_partitions, + .nr_partitions = ARRAY_SIZE(nhk8815_partitions), + .width = FSMC_NAND_BW8, + .ale_off = 0x1000000, + .cle_off = 0x800000, }; static struct platform_device nhk8815_nand_device = { - .name = "nomadik_nand", - .dev = { - .platform_data = &nhk8815_nand_data, + .name = "fsmc-nand", + .id = -1, + .resource = nhk8815_nand_resources, + .num_resources = ARRAY_SIZE(nhk8815_nand_resources), + .dev = { + .platform_data = &nhk8815_nand_platform_data, }, - .resource = nhk8815_nand_resources, - .num_resources = ARRAY_SIZE(nhk8815_nand_resources), }; /* These are the partitions for the OneNand device, different from above */ diff --git a/arch/arm/mach-nomadik/include/mach/fsmc.h b/arch/arm/mach-nomadik/include/mach/fsmc.h deleted file mode 100644 index 8c2c0518368..00000000000 --- a/arch/arm/mach-nomadik/include/mach/fsmc.h +++ /dev/null @@ -1,29 +0,0 @@ - -/* Definitions for the Nomadik FSMC "Flexible Static Memory controller" */ - -#ifndef __ASM_ARCH_FSMC_H -#define __ASM_ARCH_FSMC_H - -#include -/* - * Register list - */ - -/* bus control reg. and bus timing reg. for CS0..CS3 */ -#define FSMC_BCR(x) (NOMADIK_FSMC_VA + (x << 3)) -#define FSMC_BTR(x) (NOMADIK_FSMC_VA + (x << 3) + 0x04) - -/* PC-card and NAND: - * PCR = control register - * PMEM = memory timing - * PATT = attribute timing - * PIO = I/O timing - * PECCR = ECC result - */ -#define FSMC_PCR(x) (NOMADIK_FSMC_VA + ((2 + x) << 5) + 0x00) -#define FSMC_PMEM(x) (NOMADIK_FSMC_VA + ((2 + x) << 5) + 0x08) -#define FSMC_PATT(x) (NOMADIK_FSMC_VA + ((2 + x) << 5) + 0x0c) -#define FSMC_PIO(x) (NOMADIK_FSMC_VA + ((2 + x) << 5) + 0x10) -#define FSMC_PECCR(x) (NOMADIK_FSMC_VA + ((2 + x) << 5) + 0x14) - -#endif /* __ASM_ARCH_FSMC_H */ diff --git a/drivers/clk/clk-nomadik.c b/drivers/clk/clk-nomadik.c index 517a8ff7121..6b4c70f7d23 100644 --- a/drivers/clk/clk-nomadik.c +++ b/drivers/clk/clk-nomadik.c @@ -20,6 +20,7 @@ void __init nomadik_clk_init(void) clk_register_clkdev(clk, NULL, "gpio.2"); clk_register_clkdev(clk, NULL, "gpio.3"); clk_register_clkdev(clk, NULL, "rng"); + clk_register_clkdev(clk, NULL, "fsmc-nand"); /* * The 2.4 MHz TIMCLK reference clock is active at boot time, this is From fc05d5a30dc19dd4c6d161e551719a8c597c7890 Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Thu, 4 Oct 2012 09:28:49 +0200 Subject: [PATCH 10/96] mtd: delete nomadik_nand driver The nomadik_nand driver is really just a subset of the FSMC NAND driver, and there are no users anymore so let's delete it. Signed-off-by: Linus Walleij Acked-by: Jean-Christophe PLAGNIOL-VILLARD Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/Kconfig | 6 - drivers/mtd/nand/Makefile | 1 - drivers/mtd/nand/nomadik_nand.c | 235 ------------------ .../linux/platform_data/mtd-nomadik-nand.h | 16 -- 4 files changed, 258 deletions(-) delete mode 100644 drivers/mtd/nand/nomadik_nand.c delete mode 100644 include/linux/platform_data/mtd-nomadik-nand.h diff --git a/drivers/mtd/nand/Kconfig b/drivers/mtd/nand/Kconfig index ee803d611e4..a803d9ba55b 100644 --- a/drivers/mtd/nand/Kconfig +++ b/drivers/mtd/nand/Kconfig @@ -526,12 +526,6 @@ config MTD_NAND_MXC This enables the driver for the NAND flash controller on the MXC processors. -config MTD_NAND_NOMADIK - tristate "ST Nomadik 8815 NAND support" - depends on ARCH_NOMADIK - help - Driver for the NAND flash controller on the Nomadik, with ECC. - config MTD_NAND_SH_FLCTL tristate "Support for NAND on Renesas SuperH FLCTL" depends on SUPERH || ARCH_SHMOBILE diff --git a/drivers/mtd/nand/Makefile b/drivers/mtd/nand/Makefile index 38358c90771..44fca055336 100644 --- a/drivers/mtd/nand/Makefile +++ b/drivers/mtd/nand/Makefile @@ -49,7 +49,6 @@ obj-$(CONFIG_MTD_NAND_MXC) += mxc_nand.o obj-$(CONFIG_MTD_NAND_SOCRATES) += socrates_nand.o obj-$(CONFIG_MTD_NAND_TXX9NDFMC) += txx9ndfmc.o obj-$(CONFIG_MTD_NAND_NUC900) += nuc900_nand.o -obj-$(CONFIG_MTD_NAND_NOMADIK) += nomadik_nand.o obj-$(CONFIG_MTD_NAND_MPC5121_NFC) += mpc5121_nfc.o obj-$(CONFIG_MTD_NAND_RICOH) += r852.o obj-$(CONFIG_MTD_NAND_JZ4740) += jz4740_nand.o diff --git a/drivers/mtd/nand/nomadik_nand.c b/drivers/mtd/nand/nomadik_nand.c deleted file mode 100644 index 9ee0c4edfac..00000000000 --- a/drivers/mtd/nand/nomadik_nand.c +++ /dev/null @@ -1,235 +0,0 @@ -/* - * drivers/mtd/nand/nomadik_nand.c - * - * Overview: - * Driver for on-board NAND flash on Nomadik Platforms - * - * Copyright © 2007 STMicroelectronics Pvt. Ltd. - * Author: Sachin Verma - * - * Copyright © 2009 Alessandro Rubini - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include - -struct nomadik_nand_host { - struct mtd_info mtd; - struct nand_chip nand; - void __iomem *data_va; - void __iomem *cmd_va; - void __iomem *addr_va; - struct nand_bbt_descr *bbt_desc; -}; - -static struct nand_ecclayout nomadik_ecc_layout = { - .eccbytes = 3 * 4, - .eccpos = { /* each subpage has 16 bytes: pos 2,3,4 hosts ECC */ - 0x02, 0x03, 0x04, - 0x12, 0x13, 0x14, - 0x22, 0x23, 0x24, - 0x32, 0x33, 0x34}, - /* let's keep bytes 5,6,7 for us, just in case we change ECC algo */ - .oobfree = { {0x08, 0x08}, {0x18, 0x08}, {0x28, 0x08}, {0x38, 0x08} }, -}; - -static void nomadik_ecc_control(struct mtd_info *mtd, int mode) -{ - /* No need to enable hw ecc, it's on by default */ -} - -static void nomadik_cmd_ctrl(struct mtd_info *mtd, int cmd, unsigned int ctrl) -{ - struct nand_chip *nand = mtd->priv; - struct nomadik_nand_host *host = nand->priv; - - if (cmd == NAND_CMD_NONE) - return; - - if (ctrl & NAND_CLE) - writeb(cmd, host->cmd_va); - else - writeb(cmd, host->addr_va); -} - -static int nomadik_nand_probe(struct platform_device *pdev) -{ - struct nomadik_nand_platform_data *pdata = pdev->dev.platform_data; - struct nomadik_nand_host *host; - struct mtd_info *mtd; - struct nand_chip *nand; - struct resource *res; - int ret = 0; - - /* Allocate memory for the device structure (and zero it) */ - host = kzalloc(sizeof(struct nomadik_nand_host), GFP_KERNEL); - if (!host) { - dev_err(&pdev->dev, "Failed to allocate device structure.\n"); - return -ENOMEM; - } - - /* Call the client's init function, if any */ - if (pdata->init) - ret = pdata->init(); - if (ret < 0) { - dev_err(&pdev->dev, "Init function failed\n"); - goto err; - } - - /* ioremap three regions */ - res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "nand_addr"); - if (!res) { - ret = -EIO; - goto err_unmap; - } - host->addr_va = ioremap(res->start, resource_size(res)); - - res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "nand_data"); - if (!res) { - ret = -EIO; - goto err_unmap; - } - host->data_va = ioremap(res->start, resource_size(res)); - - res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "nand_cmd"); - if (!res) { - ret = -EIO; - goto err_unmap; - } - host->cmd_va = ioremap(res->start, resource_size(res)); - - if (!host->addr_va || !host->data_va || !host->cmd_va) { - ret = -ENOMEM; - goto err_unmap; - } - - /* Link all private pointers */ - mtd = &host->mtd; - nand = &host->nand; - mtd->priv = nand; - nand->priv = host; - - host->mtd.owner = THIS_MODULE; - nand->IO_ADDR_R = host->data_va; - nand->IO_ADDR_W = host->data_va; - nand->cmd_ctrl = nomadik_cmd_ctrl; - - /* - * This stanza declares ECC_HW but uses soft routines. It's because - * HW claims to make the calculation but not the correction. However, - * I haven't managed to get the desired data out of it until now. - */ - nand->ecc.mode = NAND_ECC_SOFT; - nand->ecc.layout = &nomadik_ecc_layout; - nand->ecc.hwctl = nomadik_ecc_control; - nand->ecc.size = 512; - nand->ecc.bytes = 3; - - nand->options = pdata->options; - - /* - * Scan to find existence of the device - */ - if (nand_scan(&host->mtd, 1)) { - ret = -ENXIO; - goto err_unmap; - } - - mtd_device_register(&host->mtd, pdata->parts, pdata->nparts); - - platform_set_drvdata(pdev, host); - return 0; - - err_unmap: - if (host->cmd_va) - iounmap(host->cmd_va); - if (host->data_va) - iounmap(host->data_va); - if (host->addr_va) - iounmap(host->addr_va); - err: - kfree(host); - return ret; -} - -/* - * Clean up routine - */ -static int nomadik_nand_remove(struct platform_device *pdev) -{ - struct nomadik_nand_host *host = platform_get_drvdata(pdev); - struct nomadik_nand_platform_data *pdata = pdev->dev.platform_data; - - if (pdata->exit) - pdata->exit(); - - if (host) { - nand_release(&host->mtd); - iounmap(host->cmd_va); - iounmap(host->data_va); - iounmap(host->addr_va); - kfree(host); - } - return 0; -} - -static int nomadik_nand_suspend(struct device *dev) -{ - struct nomadik_nand_host *host = dev_get_drvdata(dev); - int ret = 0; - if (host) - ret = mtd_suspend(&host->mtd); - return ret; -} - -static int nomadik_nand_resume(struct device *dev) -{ - struct nomadik_nand_host *host = dev_get_drvdata(dev); - if (host) - mtd_resume(&host->mtd); - return 0; -} - -static const struct dev_pm_ops nomadik_nand_pm_ops = { - .suspend = nomadik_nand_suspend, - .resume = nomadik_nand_resume, -}; - -static struct platform_driver nomadik_nand_driver = { - .probe = nomadik_nand_probe, - .remove = nomadik_nand_remove, - .driver = { - .owner = THIS_MODULE, - .name = "nomadik_nand", - .pm = &nomadik_nand_pm_ops, - }, -}; - -module_platform_driver(nomadik_nand_driver); - -MODULE_LICENSE("GPL"); -MODULE_AUTHOR("ST Microelectronics (sachin.verma@st.com)"); -MODULE_DESCRIPTION("NAND driver for Nomadik Platform"); diff --git a/include/linux/platform_data/mtd-nomadik-nand.h b/include/linux/platform_data/mtd-nomadik-nand.h deleted file mode 100644 index c3c8254c22a..00000000000 --- a/include/linux/platform_data/mtd-nomadik-nand.h +++ /dev/null @@ -1,16 +0,0 @@ -#ifndef __ASM_ARCH_NAND_H -#define __ASM_ARCH_NAND_H - -struct nomadik_nand_platform_data { - struct mtd_partition *parts; - int nparts; - int options; - int (*init) (void); - int (*exit) (void); -}; - -#define NAND_IO_DATA 0x40000000 -#define NAND_IO_CMD 0x40800000 -#define NAND_IO_ADDR 0x41000000 - -#endif /* __ASM_ARCH_NAND_H */ From 6d7b42a447f92eb3e7e410bbf62042693eb040f7 Mon Sep 17 00:00:00 2001 From: Jean-Christophe PLAGNIOL-VILLARD Date: Thu, 4 Oct 2012 15:14:16 +0200 Subject: [PATCH 11/96] mtd: fsmc_nand: pass the ale and cmd resource via resource Do not use the platform_data to pass resource and be smart in the drivers. Just pass it via resource Switch to devm_request_and_ioremap at the sametime Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD Acked-by: Linus Walleij Reviewed-By: Vipin Kumar Signed-off-by: Artem Bityutskiy --- .../devicetree/bindings/mtd/fsmc-nand.txt | 12 +++-- arch/arm/boot/dts/spear13xx.dtsi | 10 ++--- arch/arm/boot/dts/spear300.dtsi | 8 ++-- arch/arm/boot/dts/spear310.dtsi | 8 ++-- arch/arm/boot/dts/spear320.dtsi | 8 ++-- arch/arm/boot/dts/spear600.dtsi | 8 ++-- arch/arm/mach-u300/core.c | 14 +++++- drivers/mtd/nand/fsmc_nand.c | 44 +++++-------------- include/linux/mtd/fsmc.h | 3 -- 9 files changed, 49 insertions(+), 66 deletions(-) diff --git a/Documentation/devicetree/bindings/mtd/fsmc-nand.txt b/Documentation/devicetree/bindings/mtd/fsmc-nand.txt index e2c663b354d..e3ea32e7de3 100644 --- a/Documentation/devicetree/bindings/mtd/fsmc-nand.txt +++ b/Documentation/devicetree/bindings/mtd/fsmc-nand.txt @@ -3,9 +3,7 @@ Required properties: - compatible : "st,spear600-fsmc-nand" - reg : Address range of the mtd chip -- reg-names: Should contain the reg names "fsmc_regs" and "nand_data" -- st,ale-off : Chip specific offset to ALE -- st,cle-off : Chip specific offset to CLE +- reg-names: Should contain the reg names "fsmc_regs", "nand_data", "nand_addr" and "nand_cmd" Optional properties: - bank-width : Width (in bytes) of the device. If not present, the width @@ -19,10 +17,10 @@ Example: #address-cells = <1>; #size-cells = <1>; reg = <0xd1800000 0x1000 /* FSMC Register */ - 0xd2000000 0x4000>; /* NAND Base */ - reg-names = "fsmc_regs", "nand_data"; - st,ale-off = <0x20000>; - st,cle-off = <0x10000>; + 0xd2000000 0x0010 /* NAND Base DATA */ + 0xd2020000 0x0010 /* NAND Base ADDR */ + 0xd2010000 0x0010>; /* NAND Base CMD */ + reg-names = "fsmc_regs", "nand_data", "nand_addr", "nand_cmd"; bank-width = <1>; nand-skip-bbtscan; diff --git a/arch/arm/boot/dts/spear13xx.dtsi b/arch/arm/boot/dts/spear13xx.dtsi index f7b84aced65..14a6d15c2a8 100644 --- a/arch/arm/boot/dts/spear13xx.dtsi +++ b/arch/arm/boot/dts/spear13xx.dtsi @@ -104,15 +104,15 @@ compatible = "st,spear600-fsmc-nand"; #address-cells = <1>; #size-cells = <1>; - reg = <0xb0000000 0x1000 /* FSMC Register */ - 0xb0800000 0x0010>; /* NAND Base */ - reg-names = "fsmc_regs", "nand_data"; + reg = <0xb0000000 0x1000 /* FSMC Register*/ + 0xb0800000 0x0010 /* NAND Base DATA */ + 0xb0820000 0x0010 /* NAND Base ADDR */ + 0xb0810000 0x0010>; /* NAND Base CMD */ + reg-names = "fsmc_regs", "nand_data", "nand_addr", "nand_cmd"; interrupts = <0 20 0x4 0 21 0x4 0 22 0x4 0 23 0x4>; - st,ale-off = <0x20000>; - st,cle-off = <0x10000>; status = "disabled"; }; diff --git a/arch/arm/boot/dts/spear300.dtsi b/arch/arm/boot/dts/spear300.dtsi index ed3627c116c..bc436387d7f 100644 --- a/arch/arm/boot/dts/spear300.dtsi +++ b/arch/arm/boot/dts/spear300.dtsi @@ -38,10 +38,10 @@ #address-cells = <1>; #size-cells = <1>; reg = <0x94000000 0x1000 /* FSMC Register */ - 0x80000000 0x0010>; /* NAND Base */ - reg-names = "fsmc_regs", "nand_data"; - st,ale-off = <0x20000>; - st,cle-off = <0x10000>; + 0x80000000 0x0010 /* NAND Base DATA */ + 0x80020000 0x0010 /* NAND Base ADDR */ + 0x80010000 0x0010>; /* NAND Base CMD */ + reg-names = "fsmc_regs", "nand_data", "nand_addr", "nand_cmd"; status = "disabled"; }; diff --git a/arch/arm/boot/dts/spear310.dtsi b/arch/arm/boot/dts/spear310.dtsi index 62fc4fb3e5f..7840e529aba 100644 --- a/arch/arm/boot/dts/spear310.dtsi +++ b/arch/arm/boot/dts/spear310.dtsi @@ -32,10 +32,10 @@ #address-cells = <1>; #size-cells = <1>; reg = <0x44000000 0x1000 /* FSMC Register */ - 0x40000000 0x0010>; /* NAND Base */ - reg-names = "fsmc_regs", "nand_data"; - st,ale-off = <0x10000>; - st,cle-off = <0x20000>; + 0x40000000 0x0010 /* NAND Base DATA */ + 0x40020000 0x0010 /* NAND Base ADDR */ + 0x40010000 0x0010>; /* NAND Base CMD */ + reg-names = "fsmc_regs", "nand_data", "nand_addr", "nand_cmd"; status = "disabled"; }; diff --git a/arch/arm/boot/dts/spear320.dtsi b/arch/arm/boot/dts/spear320.dtsi index 1f49d69595a..5ad820641ac 100644 --- a/arch/arm/boot/dts/spear320.dtsi +++ b/arch/arm/boot/dts/spear320.dtsi @@ -38,10 +38,10 @@ #address-cells = <1>; #size-cells = <1>; reg = <0x4c000000 0x1000 /* FSMC Register */ - 0x50000000 0x0010>; /* NAND Base */ - reg-names = "fsmc_regs", "nand_data"; - st,ale-off = <0x20000>; - st,cle-off = <0x10000>; + 0x50000000 0x0010 /* NAND Base DATA */ + 0x50020000 0x0010 /* NAND Base ADDR */ + 0x50010000 0x0010>; /* NAND Base CMD */ + reg-names = "fsmc_regs", "nand_data", "nand_addr", "nand_cmd"; status = "disabled"; }; diff --git a/arch/arm/boot/dts/spear600.dtsi b/arch/arm/boot/dts/spear600.dtsi index a3c36e47d7e..4ecc66f5ac8 100644 --- a/arch/arm/boot/dts/spear600.dtsi +++ b/arch/arm/boot/dts/spear600.dtsi @@ -67,10 +67,10 @@ #address-cells = <1>; #size-cells = <1>; reg = <0xd1800000 0x1000 /* FSMC Register */ - 0xd2000000 0x4000>; /* NAND Base */ - reg-names = "fsmc_regs", "nand_data"; - st,ale-off = <0x20000>; - st,cle-off = <0x10000>; + 0xd2000000 0x0010 /* NAND Base DATA */ + 0xd2020000 0x0010 /* NAND Base ADDR */ + 0xd2010000 0x0010>; /* NAND Base CMD */ + reg-names = "fsmc_regs", "nand_data", "nand_addr", "nand_cmd"; status = "disabled"; }; diff --git a/arch/arm/mach-u300/core.c b/arch/arm/mach-u300/core.c index b8efac4daed..f642a155234 100644 --- a/arch/arm/mach-u300/core.c +++ b/arch/arm/mach-u300/core.c @@ -251,6 +251,18 @@ static struct resource rtc_resources[] = { * but these are not yet used by the driver. */ static struct resource fsmc_resources[] = { + { + .name = "nand_addr", + .start = U300_NAND_CS0_PHYS_BASE + PLAT_NAND_ALE, + .end = U300_NAND_CS0_PHYS_BASE + PLAT_NAND_ALE + SZ_16K - 1, + .flags = IORESOURCE_MEM, + }, + { + .name = "nand_cmd", + .start = U300_NAND_CS0_PHYS_BASE + PLAT_NAND_CLE, + .end = U300_NAND_CS0_PHYS_BASE + PLAT_NAND_CLE + SZ_16K - 1, + .flags = IORESOURCE_MEM, + }, { .name = "nand_data", .start = U300_NAND_CS0_PHYS_BASE, @@ -1496,8 +1508,6 @@ static struct fsmc_nand_platform_data nand_platform_data = { .nr_partitions = ARRAY_SIZE(u300_partitions), .options = NAND_SKIP_BBTSCAN, .width = FSMC_NAND_BW8, - .ale_off = PLAT_NAND_ALE, - .cle_off = PLAT_NAND_CLE, }; static struct platform_device nand_device = { diff --git a/drivers/mtd/nand/fsmc_nand.c b/drivers/mtd/nand/fsmc_nand.c index 38d26240d8b..cb864508715 100644 --- a/drivers/mtd/nand/fsmc_nand.c +++ b/drivers/mtd/nand/fsmc_nand.c @@ -876,8 +876,6 @@ static int __devinit fsmc_nand_probe_config_dt(struct platform_device *pdev, return -EINVAL; } } - of_property_read_u32(np, "st,ale-off", &pdata->ale_off); - of_property_read_u32(np, "st,cle-off", &pdata->cle_off); if (of_get_property(np, "nand-skip-bbtscan", NULL)) pdata->options = NAND_SKIP_BBTSCAN; @@ -935,41 +933,28 @@ static int __init fsmc_nand_probe(struct platform_device *pdev) if (!res) return -EINVAL; - if (!devm_request_mem_region(&pdev->dev, res->start, resource_size(res), - pdev->name)) { - dev_err(&pdev->dev, "Failed to get memory data resourse\n"); - return -ENOENT; - } - - host->data_pa = (dma_addr_t)res->start; - host->data_va = devm_ioremap(&pdev->dev, res->start, - resource_size(res)); + host->data_va = devm_request_and_ioremap(&pdev->dev, res); if (!host->data_va) { dev_err(&pdev->dev, "data ioremap failed\n"); return -ENOMEM; } + host->data_pa = (dma_addr_t)res->start; - if (!devm_request_mem_region(&pdev->dev, res->start + pdata->ale_off, - resource_size(res), pdev->name)) { - dev_err(&pdev->dev, "Failed to get memory ale resourse\n"); - return -ENOENT; - } + res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "nand_addr"); + if (!res) + return -EINVAL; - host->addr_va = devm_ioremap(&pdev->dev, res->start + pdata->ale_off, - resource_size(res)); + host->addr_va = devm_request_and_ioremap(&pdev->dev, res); if (!host->addr_va) { dev_err(&pdev->dev, "ale ioremap failed\n"); return -ENOMEM; } - if (!devm_request_mem_region(&pdev->dev, res->start + pdata->cle_off, - resource_size(res), pdev->name)) { - dev_err(&pdev->dev, "Failed to get memory cle resourse\n"); - return -ENOENT; - } + res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "nand_cmd"); + if (!res) + return -EINVAL; - host->cmd_va = devm_ioremap(&pdev->dev, res->start + pdata->cle_off, - resource_size(res)); + host->cmd_va = devm_request_and_ioremap(&pdev->dev, res); if (!host->cmd_va) { dev_err(&pdev->dev, "ale ioremap failed\n"); return -ENOMEM; @@ -979,14 +964,7 @@ static int __init fsmc_nand_probe(struct platform_device *pdev) if (!res) return -EINVAL; - if (!devm_request_mem_region(&pdev->dev, res->start, resource_size(res), - pdev->name)) { - dev_err(&pdev->dev, "Failed to get memory regs resourse\n"); - return -ENOENT; - } - - host->regs_va = devm_ioremap(&pdev->dev, res->start, - resource_size(res)); + host->regs_va = devm_request_and_ioremap(&pdev->dev, res); if (!host->regs_va) { dev_err(&pdev->dev, "regs ioremap failed\n"); return -ENOMEM; diff --git a/include/linux/mtd/fsmc.h b/include/linux/mtd/fsmc.h index b20029221fb..d6ed61ef451 100644 --- a/include/linux/mtd/fsmc.h +++ b/include/linux/mtd/fsmc.h @@ -155,9 +155,6 @@ struct fsmc_nand_platform_data { unsigned int width; unsigned int bank; - /* CLE, ALE offsets */ - unsigned int cle_off; - unsigned int ale_off; enum access_mode mode; void (*select_bank)(uint32_t bank, uint32_t busw); From db6364a650edcb076786092c7f85f1e1cdae8b20 Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Fri, 12 Oct 2012 00:23:02 +0200 Subject: [PATCH 12/96] ARM: nomadik: fixup some FSMC merge problems Due to a clash between refactoring and due to loss of a header file that remained in my working tree the Nomadik stopped compiling after switching to the FSMC driver. This patch fixes it up. Cc: Jean-Christophe PLAGNIOL-VILLARD Signed-off-by: Linus Walleij Acked-by: Jean-Christophe PLAGNIOL-VILLARD Signed-off-by: Artem Bityutskiy --- arch/arm/mach-nomadik/board-nhk8815.c | 21 +++++++++++++++++---- 1 file changed, 17 insertions(+), 4 deletions(-) diff --git a/arch/arm/mach-nomadik/board-nhk8815.c b/arch/arm/mach-nomadik/board-nhk8815.c index a105d1b7975..3f97ef40ce6 100644 --- a/arch/arm/mach-nomadik/board-nhk8815.c +++ b/arch/arm/mach-nomadik/board-nhk8815.c @@ -37,14 +37,15 @@ #include #include -#include - #include "cpu-8815.h" /* Initial value for SRC control register: all timers use MXTAL/8 source */ #define SRC_CR_INIT_MASK 0x00007fff #define SRC_CR_INIT_VAL 0x2aaa8000 +#define ALE_OFF 0x1000000 +#define CLE_OFF 0x800000 + /* These addresses span 16MB, so use three individual pages */ static struct resource nhk8815_nand_resources[] = { { @@ -52,6 +53,16 @@ static struct resource nhk8815_nand_resources[] = { .start = 0x40000000, .end = 0x40000000 + SZ_16K - 1, .flags = IORESOURCE_MEM, + }, { + .name = "nand_addr", + .start = 0x40000000 + ALE_OFF, + .end = 0x40000000 +ALE_OFF + SZ_16K - 1, + .flags = IORESOURCE_MEM, + }, { + .name = "nand_cmd", + .start = 0x40000000 + CLE_OFF, + .end = 0x40000000 + CLE_OFF + SZ_16K - 1, + .flags = IORESOURCE_MEM, }, { .name = "fsmc_regs", .start = NOMADIK_FSMC_BASE, @@ -105,8 +116,6 @@ static struct fsmc_nand_platform_data nhk8815_nand_platform_data = { .partitions = nhk8815_partitions, .nr_partitions = ARRAY_SIZE(nhk8815_partitions), .width = FSMC_NAND_BW8, - .ale_off = 0x1000000, - .cle_off = 0x800000, }; static struct platform_device nhk8815_nand_device = { @@ -171,6 +180,10 @@ static struct platform_device nhk8815_onenand_device = { .num_resources = ARRAY_SIZE(nhk8815_onenand_resource), }; +/* bus control reg. and bus timing reg. for CS0..CS3 */ +#define FSMC_BCR(x) (NOMADIK_FSMC_VA + (x << 3)) +#define FSMC_BTR(x) (NOMADIK_FSMC_VA + (x << 3) + 0x04) + static void __init nhk8815_onenand_init(void) { #ifdef CONFIG_MTD_ONENAND From 605add7db6e84ff78f7ca96541c0880f0166e387 Mon Sep 17 00:00:00 2001 From: Vipin Kumar Date: Tue, 9 Oct 2012 16:14:43 +0530 Subject: [PATCH 13/96] mtd: fsmc_nand: change the type for regs to void __iomem * Signed-off-by: Vipin Kumar Reviewed-by: Linus Walleij Reviewed-by: Viresh Kumar Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/fsmc_nand.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/mtd/nand/fsmc_nand.c b/drivers/mtd/nand/fsmc_nand.c index cb864508715..a5bc3d5511e 100644 --- a/drivers/mtd/nand/fsmc_nand.c +++ b/drivers/mtd/nand/fsmc_nand.c @@ -361,7 +361,7 @@ static void fsmc_cmd_ctrl(struct mtd_info *mtd, int cmd, unsigned int ctrl) struct nand_chip *this = mtd->priv; struct fsmc_nand_data *host = container_of(mtd, struct fsmc_nand_data, mtd); - void *__iomem *regs = host->regs_va; + void __iomem *regs = host->regs_va; unsigned int bank = host->bank; if (ctrl & NAND_CTRL_CHANGE) { From 928aa2aeb7269292ca1e3d0e5e2e5d08af13da3d Mon Sep 17 00:00:00 2001 From: Vipin Kumar Date: Tue, 9 Oct 2012 16:14:48 +0530 Subject: [PATCH 14/96] mtd: fsmc_nand: modify the wait to uninterruptible Interruptible wait caused trouble in fsmc hardware state machine if the application was killed abruptly. To make fsmc operation safe turn wait in to un-interruptible. Signed-off-by: Vipin Kumar Reviewed-by: Linus Walleij Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/fsmc_nand.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/mtd/nand/fsmc_nand.c b/drivers/mtd/nand/fsmc_nand.c index a5bc3d5511e..82c0371f71e 100644 --- a/drivers/mtd/nand/fsmc_nand.c +++ b/drivers/mtd/nand/fsmc_nand.c @@ -601,7 +601,7 @@ static int dma_xfer(struct fsmc_nand_data *host, void *buffer, int len, dma_async_issue_pending(chan); ret = - wait_for_completion_interruptible_timeout(&host->dma_access_complete, + wait_for_completion_timeout(&host->dma_access_complete, msecs_to_jiffies(3000)); if (ret <= 0) { chan->device->device_control(chan, DMA_TERMINATE_ALL, 0); From a4742d515071b8b7889a6b608da48d36c1dfcc71 Mon Sep 17 00:00:00 2001 From: Vipin Kumar Date: Tue, 9 Oct 2012 16:14:50 +0530 Subject: [PATCH 15/96] mtd: fsmc_nand: use relaxed variants of io accessors Use relaxed variants of readl/writel accessors. readl/writel io accessors use explicit dsb instruction which causes stalls in the processor core resulting several cycles of delay for each access Use relaxed variants where ever possible. This also results in an improved read/write performance. Signed-off-by: Vipin Kumar Reviewed-by: Linus Walleij Reviewed-by: Viresh Kumar Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/fsmc_nand.c | 54 +++++++++++++++++++----------------- 1 file changed, 29 insertions(+), 25 deletions(-) diff --git a/drivers/mtd/nand/fsmc_nand.c b/drivers/mtd/nand/fsmc_nand.c index 82c0371f71e..6b592235f84 100644 --- a/drivers/mtd/nand/fsmc_nand.c +++ b/drivers/mtd/nand/fsmc_nand.c @@ -383,13 +383,13 @@ static void fsmc_cmd_ctrl(struct mtd_info *mtd, int cmd, unsigned int ctrl) pc |= FSMC_ENABLE; else pc &= ~FSMC_ENABLE; - writel(pc, FSMC_NAND_REG(regs, bank, PC)); + writel_relaxed(pc, FSMC_NAND_REG(regs, bank, PC)); } mb(); if (cmd != NAND_CMD_NONE) - writeb(cmd, this->IO_ADDR_W); + writeb_relaxed(cmd, this->IO_ADDR_W); } /* @@ -426,14 +426,18 @@ static void fsmc_nand_setup(void __iomem *regs, uint32_t bank, tset = (tims->tset & FSMC_TSET_MASK) << FSMC_TSET_SHIFT; if (busw) - writel(value | FSMC_DEVWID_16, FSMC_NAND_REG(regs, bank, PC)); + writel_relaxed(value | FSMC_DEVWID_16, + FSMC_NAND_REG(regs, bank, PC)); else - writel(value | FSMC_DEVWID_8, FSMC_NAND_REG(regs, bank, PC)); + writel_relaxed(value | FSMC_DEVWID_8, + FSMC_NAND_REG(regs, bank, PC)); - writel(readl(FSMC_NAND_REG(regs, bank, PC)) | tclr | tar, + writel_relaxed(readl(FSMC_NAND_REG(regs, bank, PC)) | tclr | tar, FSMC_NAND_REG(regs, bank, PC)); - writel(thiz | thold | twait | tset, FSMC_NAND_REG(regs, bank, COMM)); - writel(thiz | thold | twait | tset, FSMC_NAND_REG(regs, bank, ATTRIB)); + writel_relaxed(thiz | thold | twait | tset, + FSMC_NAND_REG(regs, bank, COMM)); + writel_relaxed(thiz | thold | twait | tset, + FSMC_NAND_REG(regs, bank, ATTRIB)); } /* @@ -446,11 +450,11 @@ static void fsmc_enable_hwecc(struct mtd_info *mtd, int mode) void __iomem *regs = host->regs_va; uint32_t bank = host->bank; - writel(readl(FSMC_NAND_REG(regs, bank, PC)) & ~FSMC_ECCPLEN_256, + writel_relaxed(readl(FSMC_NAND_REG(regs, bank, PC)) & ~FSMC_ECCPLEN_256, FSMC_NAND_REG(regs, bank, PC)); - writel(readl(FSMC_NAND_REG(regs, bank, PC)) & ~FSMC_ECCEN, + writel_relaxed(readl(FSMC_NAND_REG(regs, bank, PC)) & ~FSMC_ECCEN, FSMC_NAND_REG(regs, bank, PC)); - writel(readl(FSMC_NAND_REG(regs, bank, PC)) | FSMC_ECCEN, + writel_relaxed(readl(FSMC_NAND_REG(regs, bank, PC)) | FSMC_ECCEN, FSMC_NAND_REG(regs, bank, PC)); } @@ -470,7 +474,7 @@ static int fsmc_read_hwecc_ecc4(struct mtd_info *mtd, const uint8_t *data, unsigned long deadline = jiffies + FSMC_BUSY_WAIT_TIMEOUT; do { - if (readl(FSMC_NAND_REG(regs, bank, STS)) & FSMC_CODE_RDY) + if (readl_relaxed(FSMC_NAND_REG(regs, bank, STS)) & FSMC_CODE_RDY) break; else cond_resched(); @@ -481,25 +485,25 @@ static int fsmc_read_hwecc_ecc4(struct mtd_info *mtd, const uint8_t *data, return -ETIMEDOUT; } - ecc_tmp = readl(FSMC_NAND_REG(regs, bank, ECC1)); + ecc_tmp = readl_relaxed(FSMC_NAND_REG(regs, bank, ECC1)); ecc[0] = (uint8_t) (ecc_tmp >> 0); ecc[1] = (uint8_t) (ecc_tmp >> 8); ecc[2] = (uint8_t) (ecc_tmp >> 16); ecc[3] = (uint8_t) (ecc_tmp >> 24); - ecc_tmp = readl(FSMC_NAND_REG(regs, bank, ECC2)); + ecc_tmp = readl_relaxed(FSMC_NAND_REG(regs, bank, ECC2)); ecc[4] = (uint8_t) (ecc_tmp >> 0); ecc[5] = (uint8_t) (ecc_tmp >> 8); ecc[6] = (uint8_t) (ecc_tmp >> 16); ecc[7] = (uint8_t) (ecc_tmp >> 24); - ecc_tmp = readl(FSMC_NAND_REG(regs, bank, ECC3)); + ecc_tmp = readl_relaxed(FSMC_NAND_REG(regs, bank, ECC3)); ecc[8] = (uint8_t) (ecc_tmp >> 0); ecc[9] = (uint8_t) (ecc_tmp >> 8); ecc[10] = (uint8_t) (ecc_tmp >> 16); ecc[11] = (uint8_t) (ecc_tmp >> 24); - ecc_tmp = readl(FSMC_NAND_REG(regs, bank, STS)); + ecc_tmp = readl_relaxed(FSMC_NAND_REG(regs, bank, STS)); ecc[12] = (uint8_t) (ecc_tmp >> 16); return 0; @@ -519,7 +523,7 @@ static int fsmc_read_hwecc_ecc1(struct mtd_info *mtd, const uint8_t *data, uint32_t bank = host->bank; uint32_t ecc_tmp; - ecc_tmp = readl(FSMC_NAND_REG(regs, bank, ECC1)); + ecc_tmp = readl_relaxed(FSMC_NAND_REG(regs, bank, ECC1)); ecc[0] = (uint8_t) (ecc_tmp >> 0); ecc[1] = (uint8_t) (ecc_tmp >> 8); ecc[2] = (uint8_t) (ecc_tmp >> 16); @@ -628,10 +632,10 @@ static void fsmc_write_buf(struct mtd_info *mtd, const uint8_t *buf, int len) uint32_t *p = (uint32_t *)buf; len = len >> 2; for (i = 0; i < len; i++) - writel(p[i], chip->IO_ADDR_W); + writel_relaxed(p[i], chip->IO_ADDR_W); } else { for (i = 0; i < len; i++) - writeb(buf[i], chip->IO_ADDR_W); + writeb_relaxed(buf[i], chip->IO_ADDR_W); } } @@ -651,10 +655,10 @@ static void fsmc_read_buf(struct mtd_info *mtd, uint8_t *buf, int len) uint32_t *p = (uint32_t *)buf; len = len >> 2; for (i = 0; i < len; i++) - p[i] = readl(chip->IO_ADDR_R); + p[i] = readl_relaxed(chip->IO_ADDR_R); } else { for (i = 0; i < len; i++) - buf[i] = readb(chip->IO_ADDR_R); + buf[i] = readb_relaxed(chip->IO_ADDR_R); } } @@ -783,7 +787,7 @@ static int fsmc_bch8_correct_data(struct mtd_info *mtd, uint8_t *dat, uint32_t num_err, i; uint32_t ecc1, ecc2, ecc3, ecc4; - num_err = (readl(FSMC_NAND_REG(regs, bank, STS)) >> 10) & 0xF; + num_err = (readl_relaxed(FSMC_NAND_REG(regs, bank, STS)) >> 10) & 0xF; /* no bit flipping */ if (likely(num_err == 0)) @@ -826,10 +830,10 @@ static int fsmc_bch8_correct_data(struct mtd_info *mtd, uint8_t *dat, * uint64_t array and error offset indexes are populated in err_idx * array */ - ecc1 = readl(FSMC_NAND_REG(regs, bank, ECC1)); - ecc2 = readl(FSMC_NAND_REG(regs, bank, ECC2)); - ecc3 = readl(FSMC_NAND_REG(regs, bank, ECC3)); - ecc4 = readl(FSMC_NAND_REG(regs, bank, STS)); + ecc1 = readl_relaxed(FSMC_NAND_REG(regs, bank, ECC1)); + ecc2 = readl_relaxed(FSMC_NAND_REG(regs, bank, ECC2)); + ecc3 = readl_relaxed(FSMC_NAND_REG(regs, bank, ECC3)); + ecc4 = readl_relaxed(FSMC_NAND_REG(regs, bank, STS)); err_idx[0] = (ecc1 >> 0) & 0x1FFF; err_idx[1] = (ecc1 >> 13) & 0x1FFF; From 2f25ae97fe4b424d88d765797c46456c7c0f1bae Mon Sep 17 00:00:00 2001 From: Vipin Kumar Date: Tue, 9 Oct 2012 16:14:53 +0530 Subject: [PATCH 16/96] mtd: nand: Increase the ecc placement locations to 640 Few devices like H27UBG8T2CTR have a writesize/oobsize of 8KB/640B. This means that the maximum oobsize has gone up to 640 bytes and consequently the maximum ecc placement locations have also gone up to 640. Signed-off-by: Vipin Kumar Signed-off-by: Artem Bityutskiy --- include/linux/mtd/mtd.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/linux/mtd/mtd.h b/include/linux/mtd/mtd.h index 81d61e70459..f9ac2897b86 100644 --- a/include/linux/mtd/mtd.h +++ b/include/linux/mtd/mtd.h @@ -98,7 +98,7 @@ struct mtd_oob_ops { }; #define MTD_MAX_OOBFREE_ENTRIES_LARGE 32 -#define MTD_MAX_ECCPOS_ENTRIES_LARGE 448 +#define MTD_MAX_ECCPOS_ENTRIES_LARGE 640 /* * Internal ECC layout control structure. For historical reasons, there is a * similar, smaller struct nand_ecclayout_user (in mtd-abi.h) that is retained From a90019e25e0caed04d3704235b5ea984aaa28da8 Mon Sep 17 00:00:00 2001 From: Srinivas Kandagatla Date: Wed, 10 Oct 2012 19:39:59 +0100 Subject: [PATCH 17/96] mtd: spear_smi: use module_platform_driver macro This patch removes some code duplication by using module_platform_driver. Signed-off-by: Srinivas Kandagatla Signed-off-by: Artem Bityutskiy --- drivers/mtd/devices/spear_smi.c | 13 +------------ 1 file changed, 1 insertion(+), 12 deletions(-) diff --git a/drivers/mtd/devices/spear_smi.c b/drivers/mtd/devices/spear_smi.c index dcc3c951153..39e95673cdd 100644 --- a/drivers/mtd/devices/spear_smi.c +++ b/drivers/mtd/devices/spear_smi.c @@ -1094,18 +1094,7 @@ static struct platform_driver spear_smi_driver = { .probe = spear_smi_probe, .remove = __devexit_p(spear_smi_remove), }; - -static int spear_smi_init(void) -{ - return platform_driver_register(&spear_smi_driver); -} -module_init(spear_smi_init); - -static void spear_smi_exit(void) -{ - platform_driver_unregister(&spear_smi_driver); -} -module_exit(spear_smi_exit); +module_platform_driver(spear_smi_driver); MODULE_LICENSE("GPL"); MODULE_AUTHOR("Ashish Priyadarshi, Shiraz Hashim "); From 600ed67562e5349be92867825ab5505526eac139 Mon Sep 17 00:00:00 2001 From: Vikram Narayanan Date: Wed, 10 Oct 2012 23:04:41 +0530 Subject: [PATCH 18/96] mtd: tests: mtd_nandbiterrs: replace msg macro with pr_{info,err} Use pr_fmt instead of msg macro Signed-off-by: Vikram Narayanan Signed-off-by: Artem Bityutskiy --- drivers/mtd/tests/mtd_nandbiterrs.c | 73 +++++++++++++++-------------- 1 file changed, 37 insertions(+), 36 deletions(-) diff --git a/drivers/mtd/tests/mtd_nandbiterrs.c b/drivers/mtd/tests/mtd_nandbiterrs.c index cc8d62cb280..207bf9a9972 100644 --- a/drivers/mtd/tests/mtd_nandbiterrs.c +++ b/drivers/mtd/tests/mtd_nandbiterrs.c @@ -39,6 +39,9 @@ * this program; see the file COPYING. If not, write to the Free Software * Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include #include #include @@ -47,8 +50,6 @@ #include #include -#define msg(FMT, VA...) pr_info("mtd_nandbiterrs: "FMT, ##VA) - static int dev; module_param(dev, int, S_IRUGO); MODULE_PARM_DESC(dev, "MTD device number to use"); @@ -103,7 +104,7 @@ static int erase_block(void) struct erase_info ei; loff_t addr = eraseblock * mtd->erasesize; - msg("erase_block\n"); + pr_info("erase_block\n"); memset(&ei, 0, sizeof(struct erase_info)); ei.mtd = mtd; @@ -112,7 +113,7 @@ static int erase_block(void) err = mtd_erase(mtd, &ei); if (err || ei.state == MTD_ERASE_FAILED) { - msg("error %d while erasing\n", err); + pr_err("error %d while erasing\n", err); if (!err) err = -EIO; return err; @@ -128,11 +129,11 @@ static int write_page(int log) size_t written; if (log) - msg("write_page\n"); + pr_info("write_page\n"); err = mtd_write(mtd, offset, mtd->writesize, &written, wbuffer); if (err || written != mtd->writesize) { - msg("error: write failed at %#llx\n", (long long)offset); + pr_err("error: write failed at %#llx\n", (long long)offset); if (!err) err = -EIO; } @@ -147,7 +148,7 @@ static int rewrite_page(int log) struct mtd_oob_ops ops; if (log) - msg("rewrite page\n"); + pr_info("rewrite page\n"); ops.mode = MTD_OPS_RAW; /* No ECC */ ops.len = mtd->writesize; @@ -160,7 +161,7 @@ static int rewrite_page(int log) err = mtd_write_oob(mtd, offset, &ops); if (err || ops.retlen != mtd->writesize) { - msg("error: write_oob failed (%d)\n", err); + pr_err("error: write_oob failed (%d)\n", err); if (!err) err = -EIO; } @@ -177,7 +178,7 @@ static int read_page(int log) struct mtd_ecc_stats oldstats; if (log) - msg("read_page\n"); + pr_info("read_page\n"); /* Saving last mtd stats */ memcpy(&oldstats, &mtd->ecc_stats, sizeof(oldstats)); @@ -187,7 +188,7 @@ static int read_page(int log) err = mtd->ecc_stats.corrected - oldstats.corrected; if (err < 0 || read != mtd->writesize) { - msg("error: read failed at %#llx\n", (long long)offset); + pr_err("error: read failed at %#llx\n", (long long)offset); if (err >= 0) err = -EIO; } @@ -201,11 +202,11 @@ static int verify_page(int log) unsigned i, errs = 0; if (log) - msg("verify_page\n"); + pr_info("verify_page\n"); for (i = 0; i < mtd->writesize; i++) { if (rbuffer[i] != hash(i+seed)) { - msg("Error: page offset %u, expected %02x, got %02x\n", + pr_err("Error: page offset %u, expected %02x, got %02x\n", i, hash(i+seed), rbuffer[i]); errs++; } @@ -230,13 +231,13 @@ static int insert_biterror(unsigned byte) for (bit = 7; bit >= 0; bit--) { if (CBIT(wbuffer[byte], bit)) { BCLR(wbuffer[byte], bit); - msg("Inserted biterror @ %u/%u\n", byte, bit); + pr_info("Inserted biterror @ %u/%u\n", byte, bit); return 0; } } byte++; } - msg("biterror: Failed to find a '1' bit\n"); + pr_err("biterror: Failed to find a '1' bit\n"); return -EIO; } @@ -248,7 +249,7 @@ static int incremental_errors_test(void) unsigned i; unsigned errs_per_subpage = 0; - msg("incremental biterrors test\n"); + pr_info("incremental biterrors test\n"); for (i = 0; i < mtd->writesize; i++) wbuffer[i] = hash(i+seed); @@ -265,9 +266,9 @@ static int incremental_errors_test(void) err = read_page(1); if (err > 0) - msg("Read reported %d corrected bit errors\n", err); + pr_info("Read reported %d corrected bit errors\n", err); if (err < 0) { - msg("After %d biterrors per subpage, read reported error %d\n", + pr_err("After %d biterrors per subpage, read reported error %d\n", errs_per_subpage, err); err = 0; goto exit; @@ -275,11 +276,11 @@ static int incremental_errors_test(void) err = verify_page(1); if (err) { - msg("ECC failure, read data is incorrect despite read success\n"); + pr_err("ECC failure, read data is incorrect despite read success\n"); goto exit; } - msg("Successfully corrected %d bit errors per subpage\n", + pr_info("Successfully corrected %d bit errors per subpage\n", errs_per_subpage); for (i = 0; i < subcount; i++) { @@ -311,7 +312,7 @@ static int overwrite_test(void) memset(bitstats, 0, sizeof(bitstats)); - msg("overwrite biterrors test\n"); + pr_info("overwrite biterrors test\n"); for (i = 0; i < mtd->writesize; i++) wbuffer[i] = hash(i+seed); @@ -329,18 +330,18 @@ static int overwrite_test(void) err = read_page(0); if (err >= 0) { if (err >= MAXBITS) { - msg("Implausible number of bit errors corrected\n"); + pr_info("Implausible number of bit errors corrected\n"); err = -EIO; break; } bitstats[err]++; if (err > max_corrected) { max_corrected = err; - msg("Read reported %d corrected bit errors\n", + pr_info("Read reported %d corrected bit errors\n", err); } } else { /* err < 0 */ - msg("Read reported error %d\n", err); + pr_info("Read reported error %d\n", err); err = 0; break; } @@ -348,7 +349,7 @@ static int overwrite_test(void) err = verify_page(0); if (err) { bitstats[max_corrected] = opno; - msg("ECC failure, read data is incorrect despite read success\n"); + pr_info("ECC failure, read data is incorrect despite read success\n"); break; } @@ -357,9 +358,9 @@ static int overwrite_test(void) /* At this point bitstats[0] contains the number of ops with no bit * errors, bitstats[1] the number of ops with 1 bit error, etc. */ - msg("Bit error histogram (%d operations total):\n", opno); + pr_info("Bit error histogram (%d operations total):\n", opno); for (i = 0; i < max_corrected; i++) - msg("Page reads with %3d corrected bit errors: %d\n", + pr_info("Page reads with %3d corrected bit errors: %d\n", i, bitstats[i]); exit: @@ -370,36 +371,36 @@ static int __init mtd_nandbiterrs_init(void) { int err = 0; - msg("\n"); - msg("==================================================\n"); - msg("MTD device: %d\n", dev); + printk("\n"); + printk(KERN_INFO "==================================================\n"); + pr_info("MTD device: %d\n", dev); mtd = get_mtd_device(NULL, dev); if (IS_ERR(mtd)) { err = PTR_ERR(mtd); - msg("error: cannot get MTD device\n"); + pr_err("error: cannot get MTD device\n"); goto exit_mtddev; } if (mtd->type != MTD_NANDFLASH) { - msg("this test requires NAND flash\n"); + pr_info("this test requires NAND flash\n"); err = -ENODEV; goto exit_nand; } - msg("MTD device size %llu, eraseblock=%u, page=%u, oob=%u\n", + pr_info("MTD device size %llu, eraseblock=%u, page=%u, oob=%u\n", (unsigned long long)mtd->size, mtd->erasesize, mtd->writesize, mtd->oobsize); subsize = mtd->writesize >> mtd->subpage_sft; subcount = mtd->writesize / subsize; - msg("Device uses %d subpages of %d bytes\n", subcount, subsize); + pr_info("Device uses %d subpages of %d bytes\n", subcount, subsize); offset = page_offset * mtd->writesize; eraseblock = mtd_div_by_eb(offset, mtd); - msg("Using page=%u, offset=%llu, eraseblock=%u\n", + pr_info("Using page=%u, offset=%llu, eraseblock=%u\n", page_offset, offset, eraseblock); wbuffer = kmalloc(mtd->writesize, GFP_KERNEL); @@ -432,8 +433,8 @@ static int __init mtd_nandbiterrs_init(void) goto exit_error; err = -EIO; - msg("finished successfully.\n"); - msg("==================================================\n"); + pr_info("finished successfully.\n"); + printk(KERN_INFO "==================================================\n"); exit_error: kfree(rbuffer); From b6489d9706ca6cb42892571ac82b71ad92675036 Mon Sep 17 00:00:00 2001 From: Vikram Narayanan Date: Wed, 10 Oct 2012 23:07:19 +0530 Subject: [PATCH 19/96] mtd: tests: mtd_nandecctest: Use pr_fmt macro Use KBUILD_MODNAME instead of hardcoding the filename Signed-off-by: Vikram Narayanan Signed-off-by: Artem Bityutskiy --- drivers/mtd/tests/mtd_nandecctest.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/mtd/tests/mtd_nandecctest.c b/drivers/mtd/tests/mtd_nandecctest.c index b437fa42507..1eee264509a 100644 --- a/drivers/mtd/tests/mtd_nandecctest.c +++ b/drivers/mtd/tests/mtd_nandecctest.c @@ -1,3 +1,5 @@ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include #include #include @@ -264,13 +266,13 @@ static int nand_ecc_test_run(const size_t size) correct_data, size); if (err) { - pr_err("mtd_nandecctest: not ok - %s-%zd\n", + pr_err("not ok - %s-%zd\n", nand_ecc_test[i].name, size); dump_data_ecc(error_data, error_ecc, correct_data, correct_ecc, size); break; } - pr_info("mtd_nandecctest: ok - %s-%zd\n", + pr_info("ok - %s-%zd\n", nand_ecc_test[i].name, size); } error: From bb9984191ef9ba18a80d96c07919b782bdb65278 Mon Sep 17 00:00:00 2001 From: Vikram Narayanan Date: Wed, 10 Oct 2012 23:07:40 +0530 Subject: [PATCH 20/96] mtd: tests: mtd_pagetest: Replace printk with pr_{info,crit,err} Use pr_fmt instead of PRINT_PREF macro Signed-off-by: Vikram Narayanan Signed-off-by: Artem Bityutskiy --- drivers/mtd/tests/mtd_pagetest.c | 152 +++++++++++++++---------------- 1 file changed, 76 insertions(+), 76 deletions(-) diff --git a/drivers/mtd/tests/mtd_pagetest.c b/drivers/mtd/tests/mtd_pagetest.c index 252ddb092fb..3ba2a77dbda 100644 --- a/drivers/mtd/tests/mtd_pagetest.c +++ b/drivers/mtd/tests/mtd_pagetest.c @@ -19,6 +19,8 @@ * Author: Adrian Hunter */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include #include #include @@ -28,8 +30,6 @@ #include #include -#define PRINT_PREF KERN_INFO "mtd_pagetest: " - static int dev = -EINVAL; module_param(dev, int, S_IRUGO); MODULE_PARM_DESC(dev, "MTD device number to use"); @@ -79,12 +79,12 @@ static int erase_eraseblock(int ebnum) err = mtd_erase(mtd, &ei); if (err) { - printk(PRINT_PREF "error %d while erasing EB %d\n", err, ebnum); + pr_err("error %d while erasing EB %d\n", err, ebnum); return err; } if (ei.state == MTD_ERASE_FAILED) { - printk(PRINT_PREF "some erase error occurred at EB %d\n", + pr_err("some erase error occurred at EB %d\n", ebnum); return -EIO; } @@ -102,7 +102,7 @@ static int write_eraseblock(int ebnum) cond_resched(); err = mtd_write(mtd, addr, mtd->erasesize, &written, writebuf); if (err || written != mtd->erasesize) - printk(PRINT_PREF "error: write failed at %#llx\n", + pr_err("error: write failed at %#llx\n", (long long)addr); return err; @@ -131,7 +131,7 @@ static int verify_eraseblock(int ebnum) if (mtd_is_bitflip(err)) err = 0; if (err || read != bufsize) { - printk(PRINT_PREF "error: read failed at %#llx\n", + pr_err("error: read failed at %#llx\n", (long long)addr0); return err; } @@ -139,7 +139,7 @@ static int verify_eraseblock(int ebnum) if (mtd_is_bitflip(err)) err = 0; if (err || read != bufsize) { - printk(PRINT_PREF "error: read failed at %#llx\n", + pr_err("error: read failed at %#llx\n", (long long)(addrn - bufsize)); return err; } @@ -148,12 +148,12 @@ static int verify_eraseblock(int ebnum) if (mtd_is_bitflip(err)) err = 0; if (err || read != bufsize) { - printk(PRINT_PREF "error: read failed at %#llx\n", + pr_err("error: read failed at %#llx\n", (long long)addr); break; } if (memcmp(twopages, writebuf + (j * pgsize), bufsize)) { - printk(PRINT_PREF "error: verify failed at %#llx\n", + pr_err("error: verify failed at %#llx\n", (long long)addr); errcnt += 1; } @@ -166,7 +166,7 @@ static int verify_eraseblock(int ebnum) if (mtd_is_bitflip(err)) err = 0; if (err || read != bufsize) { - printk(PRINT_PREF "error: read failed at %#llx\n", + pr_err("error: read failed at %#llx\n", (long long)addr0); return err; } @@ -174,7 +174,7 @@ static int verify_eraseblock(int ebnum) if (mtd_is_bitflip(err)) err = 0; if (err || read != bufsize) { - printk(PRINT_PREF "error: read failed at %#llx\n", + pr_err("error: read failed at %#llx\n", (long long)(addrn - bufsize)); return err; } @@ -183,14 +183,14 @@ static int verify_eraseblock(int ebnum) if (mtd_is_bitflip(err)) err = 0; if (err || read != bufsize) { - printk(PRINT_PREF "error: read failed at %#llx\n", + pr_err("error: read failed at %#llx\n", (long long)addr); return err; } memcpy(boundary, writebuf + mtd->erasesize - pgsize, pgsize); set_random_data(boundary + pgsize, pgsize); if (memcmp(twopages, boundary, bufsize)) { - printk(PRINT_PREF "error: verify failed at %#llx\n", + pr_err("error: verify failed at %#llx\n", (long long)addr); errcnt += 1; } @@ -206,10 +206,10 @@ static int crosstest(void) loff_t addr, addr0, addrn; unsigned char *pp1, *pp2, *pp3, *pp4; - printk(PRINT_PREF "crosstest\n"); + pr_info("crosstest\n"); pp1 = kmalloc(pgsize * 4, GFP_KERNEL); if (!pp1) { - printk(PRINT_PREF "error: cannot allocate memory\n"); + pr_err("error: cannot allocate memory\n"); return -ENOMEM; } pp2 = pp1 + pgsize; @@ -231,7 +231,7 @@ static int crosstest(void) if (mtd_is_bitflip(err)) err = 0; if (err || read != pgsize) { - printk(PRINT_PREF "error: read failed at %#llx\n", + pr_err("error: read failed at %#llx\n", (long long)addr); kfree(pp1); return err; @@ -243,7 +243,7 @@ static int crosstest(void) if (mtd_is_bitflip(err)) err = 0; if (err || read != pgsize) { - printk(PRINT_PREF "error: read failed at %#llx\n", + pr_err("error: read failed at %#llx\n", (long long)addr); kfree(pp1); return err; @@ -251,12 +251,12 @@ static int crosstest(void) /* Read first page to pp2 */ addr = addr0; - printk(PRINT_PREF "reading page at %#llx\n", (long long)addr); + pr_info("reading page at %#llx\n", (long long)addr); err = mtd_read(mtd, addr, pgsize, &read, pp2); if (mtd_is_bitflip(err)) err = 0; if (err || read != pgsize) { - printk(PRINT_PREF "error: read failed at %#llx\n", + pr_err("error: read failed at %#llx\n", (long long)addr); kfree(pp1); return err; @@ -264,12 +264,12 @@ static int crosstest(void) /* Read last page to pp3 */ addr = addrn - pgsize; - printk(PRINT_PREF "reading page at %#llx\n", (long long)addr); + pr_info("reading page at %#llx\n", (long long)addr); err = mtd_read(mtd, addr, pgsize, &read, pp3); if (mtd_is_bitflip(err)) err = 0; if (err || read != pgsize) { - printk(PRINT_PREF "error: read failed at %#llx\n", + pr_err("error: read failed at %#llx\n", (long long)addr); kfree(pp1); return err; @@ -277,25 +277,25 @@ static int crosstest(void) /* Read first page again to pp4 */ addr = addr0; - printk(PRINT_PREF "reading page at %#llx\n", (long long)addr); + pr_info("reading page at %#llx\n", (long long)addr); err = mtd_read(mtd, addr, pgsize, &read, pp4); if (mtd_is_bitflip(err)) err = 0; if (err || read != pgsize) { - printk(PRINT_PREF "error: read failed at %#llx\n", + pr_err("error: read failed at %#llx\n", (long long)addr); kfree(pp1); return err; } /* pp2 and pp4 should be the same */ - printk(PRINT_PREF "verifying pages read at %#llx match\n", + pr_info("verifying pages read at %#llx match\n", (long long)addr0); if (memcmp(pp2, pp4, pgsize)) { - printk(PRINT_PREF "verify failed!\n"); + pr_err("verify failed!\n"); errcnt += 1; } else if (!err) - printk(PRINT_PREF "crosstest ok\n"); + pr_info("crosstest ok\n"); kfree(pp1); return err; } @@ -307,7 +307,7 @@ static int erasecrosstest(void) loff_t addr0; char *readbuf = twopages; - printk(PRINT_PREF "erasecrosstest\n"); + pr_info("erasecrosstest\n"); ebnum = 0; addr0 = 0; @@ -320,79 +320,79 @@ static int erasecrosstest(void) while (ebnum2 && bbt[ebnum2]) ebnum2 -= 1; - printk(PRINT_PREF "erasing block %d\n", ebnum); + pr_info("erasing block %d\n", ebnum); err = erase_eraseblock(ebnum); if (err) return err; - printk(PRINT_PREF "writing 1st page of block %d\n", ebnum); + pr_info("writing 1st page of block %d\n", ebnum); set_random_data(writebuf, pgsize); strcpy(writebuf, "There is no data like this!"); err = mtd_write(mtd, addr0, pgsize, &written, writebuf); if (err || written != pgsize) { - printk(PRINT_PREF "error: write failed at %#llx\n", + pr_info("error: write failed at %#llx\n", (long long)addr0); return err ? err : -1; } - printk(PRINT_PREF "reading 1st page of block %d\n", ebnum); + pr_info("reading 1st page of block %d\n", ebnum); memset(readbuf, 0, pgsize); err = mtd_read(mtd, addr0, pgsize, &read, readbuf); if (mtd_is_bitflip(err)) err = 0; if (err || read != pgsize) { - printk(PRINT_PREF "error: read failed at %#llx\n", + pr_err("error: read failed at %#llx\n", (long long)addr0); return err ? err : -1; } - printk(PRINT_PREF "verifying 1st page of block %d\n", ebnum); + pr_info("verifying 1st page of block %d\n", ebnum); if (memcmp(writebuf, readbuf, pgsize)) { - printk(PRINT_PREF "verify failed!\n"); + pr_err("verify failed!\n"); errcnt += 1; return -1; } - printk(PRINT_PREF "erasing block %d\n", ebnum); + pr_info("erasing block %d\n", ebnum); err = erase_eraseblock(ebnum); if (err) return err; - printk(PRINT_PREF "writing 1st page of block %d\n", ebnum); + pr_info("writing 1st page of block %d\n", ebnum); set_random_data(writebuf, pgsize); strcpy(writebuf, "There is no data like this!"); err = mtd_write(mtd, addr0, pgsize, &written, writebuf); if (err || written != pgsize) { - printk(PRINT_PREF "error: write failed at %#llx\n", + pr_err("error: write failed at %#llx\n", (long long)addr0); return err ? err : -1; } - printk(PRINT_PREF "erasing block %d\n", ebnum2); + pr_info("erasing block %d\n", ebnum2); err = erase_eraseblock(ebnum2); if (err) return err; - printk(PRINT_PREF "reading 1st page of block %d\n", ebnum); + pr_info("reading 1st page of block %d\n", ebnum); memset(readbuf, 0, pgsize); err = mtd_read(mtd, addr0, pgsize, &read, readbuf); if (mtd_is_bitflip(err)) err = 0; if (err || read != pgsize) { - printk(PRINT_PREF "error: read failed at %#llx\n", + pr_err("error: read failed at %#llx\n", (long long)addr0); return err ? err : -1; } - printk(PRINT_PREF "verifying 1st page of block %d\n", ebnum); + pr_info("verifying 1st page of block %d\n", ebnum); if (memcmp(writebuf, readbuf, pgsize)) { - printk(PRINT_PREF "verify failed!\n"); + pr_err("verify failed!\n"); errcnt += 1; return -1; } if (!err) - printk(PRINT_PREF "erasecrosstest ok\n"); + pr_info("erasecrosstest ok\n"); return err; } @@ -402,7 +402,7 @@ static int erasetest(void) int err = 0, i, ebnum, ok = 1; loff_t addr0; - printk(PRINT_PREF "erasetest\n"); + pr_info("erasetest\n"); ebnum = 0; addr0 = 0; @@ -411,40 +411,40 @@ static int erasetest(void) ebnum += 1; } - printk(PRINT_PREF "erasing block %d\n", ebnum); + pr_info("erasing block %d\n", ebnum); err = erase_eraseblock(ebnum); if (err) return err; - printk(PRINT_PREF "writing 1st page of block %d\n", ebnum); + pr_info("writing 1st page of block %d\n", ebnum); set_random_data(writebuf, pgsize); err = mtd_write(mtd, addr0, pgsize, &written, writebuf); if (err || written != pgsize) { - printk(PRINT_PREF "error: write failed at %#llx\n", + pr_err("error: write failed at %#llx\n", (long long)addr0); return err ? err : -1; } - printk(PRINT_PREF "erasing block %d\n", ebnum); + pr_info("erasing block %d\n", ebnum); err = erase_eraseblock(ebnum); if (err) return err; - printk(PRINT_PREF "reading 1st page of block %d\n", ebnum); + pr_info("reading 1st page of block %d\n", ebnum); err = mtd_read(mtd, addr0, pgsize, &read, twopages); if (mtd_is_bitflip(err)) err = 0; if (err || read != pgsize) { - printk(PRINT_PREF "error: read failed at %#llx\n", + pr_err("error: read failed at %#llx\n", (long long)addr0); return err ? err : -1; } - printk(PRINT_PREF "verifying 1st page of block %d is all 0xff\n", + pr_info("verifying 1st page of block %d is all 0xff\n", ebnum); for (i = 0; i < pgsize; ++i) if (twopages[i] != 0xff) { - printk(PRINT_PREF "verifying all 0xff failed at %d\n", + pr_err("verifying all 0xff failed at %d\n", i); errcnt += 1; ok = 0; @@ -452,7 +452,7 @@ static int erasetest(void) } if (ok && !err) - printk(PRINT_PREF "erasetest ok\n"); + pr_info("erasetest ok\n"); return err; } @@ -464,7 +464,7 @@ static int is_block_bad(int ebnum) ret = mtd_block_isbad(mtd, addr); if (ret) - printk(PRINT_PREF "block %d is bad\n", ebnum); + pr_info("block %d is bad\n", ebnum); return ret; } @@ -474,18 +474,18 @@ static int scan_for_bad_eraseblocks(void) bbt = kzalloc(ebcnt, GFP_KERNEL); if (!bbt) { - printk(PRINT_PREF "error: cannot allocate memory\n"); + pr_err("error: cannot allocate memory\n"); return -ENOMEM; } - printk(PRINT_PREF "scanning for bad eraseblocks\n"); + pr_info("scanning for bad eraseblocks\n"); for (i = 0; i < ebcnt; ++i) { bbt[i] = is_block_bad(i) ? 1 : 0; if (bbt[i]) bad += 1; cond_resched(); } - printk(PRINT_PREF "scanned %d eraseblocks, %d are bad\n", i, bad); + pr_info("scanned %d eraseblocks, %d are bad\n", i, bad); return 0; } @@ -499,22 +499,22 @@ static int __init mtd_pagetest_init(void) printk(KERN_INFO "=================================================\n"); if (dev < 0) { - printk(PRINT_PREF "Please specify a valid mtd-device via module paramter\n"); - printk(KERN_CRIT "CAREFUL: This test wipes all data on the specified MTD device!\n"); + pr_info("Please specify a valid mtd-device via module paramter\n"); + pr_crit("CAREFUL: This test wipes all data on the specified MTD device!\n"); return -EINVAL; } - printk(PRINT_PREF "MTD device: %d\n", dev); + pr_info("MTD device: %d\n", dev); mtd = get_mtd_device(NULL, dev); if (IS_ERR(mtd)) { err = PTR_ERR(mtd); - printk(PRINT_PREF "error: cannot get MTD device\n"); + pr_err("error: cannot get MTD device\n"); return err; } if (mtd->type != MTD_NANDFLASH) { - printk(PRINT_PREF "this test requires NAND flash\n"); + pr_info("this test requires NAND flash\n"); goto out; } @@ -524,7 +524,7 @@ static int __init mtd_pagetest_init(void) pgcnt = mtd->erasesize / mtd->writesize; pgsize = mtd->writesize; - printk(PRINT_PREF "MTD device size %llu, eraseblock size %u, " + pr_info("MTD device size %llu, eraseblock size %u, " "page size %u, count of eraseblocks %u, pages per " "eraseblock %u, OOB size %u\n", (unsigned long long)mtd->size, mtd->erasesize, @@ -534,17 +534,17 @@ static int __init mtd_pagetest_init(void) bufsize = pgsize * 2; writebuf = kmalloc(mtd->erasesize, GFP_KERNEL); if (!writebuf) { - printk(PRINT_PREF "error: cannot allocate memory\n"); + pr_err("error: cannot allocate memory\n"); goto out; } twopages = kmalloc(bufsize, GFP_KERNEL); if (!twopages) { - printk(PRINT_PREF "error: cannot allocate memory\n"); + pr_err("error: cannot allocate memory\n"); goto out; } boundary = kmalloc(bufsize, GFP_KERNEL); if (!boundary) { - printk(PRINT_PREF "error: cannot allocate memory\n"); + pr_err("error: cannot allocate memory\n"); goto out; } @@ -553,7 +553,7 @@ static int __init mtd_pagetest_init(void) goto out; /* Erase all eraseblocks */ - printk(PRINT_PREF "erasing whole device\n"); + pr_info("erasing whole device\n"); for (i = 0; i < ebcnt; ++i) { if (bbt[i]) continue; @@ -562,11 +562,11 @@ static int __init mtd_pagetest_init(void) goto out; cond_resched(); } - printk(PRINT_PREF "erased %u eraseblocks\n", i); + pr_info("erased %u eraseblocks\n", i); /* Write all eraseblocks */ simple_srand(1); - printk(PRINT_PREF "writing whole device\n"); + pr_info("writing whole device\n"); for (i = 0; i < ebcnt; ++i) { if (bbt[i]) continue; @@ -574,14 +574,14 @@ static int __init mtd_pagetest_init(void) if (err) goto out; if (i % 256 == 0) - printk(PRINT_PREF "written up to eraseblock %u\n", i); + pr_info("written up to eraseblock %u\n", i); cond_resched(); } - printk(PRINT_PREF "written %u eraseblocks\n", i); + pr_info("written %u eraseblocks\n", i); /* Check all eraseblocks */ simple_srand(1); - printk(PRINT_PREF "verifying all eraseblocks\n"); + pr_info("verifying all eraseblocks\n"); for (i = 0; i < ebcnt; ++i) { if (bbt[i]) continue; @@ -589,10 +589,10 @@ static int __init mtd_pagetest_init(void) if (err) goto out; if (i % 256 == 0) - printk(PRINT_PREF "verified up to eraseblock %u\n", i); + pr_info("verified up to eraseblock %u\n", i); cond_resched(); } - printk(PRINT_PREF "verified %u eraseblocks\n", i); + pr_info("verified %u eraseblocks\n", i); err = crosstest(); if (err) @@ -606,7 +606,7 @@ static int __init mtd_pagetest_init(void) if (err) goto out; - printk(PRINT_PREF "finished with %d errors\n", errcnt); + pr_info("finished with %d errors\n", errcnt); out: kfree(bbt); @@ -615,7 +615,7 @@ out: kfree(writebuf); put_mtd_device(mtd); if (err) - printk(PRINT_PREF "error %d occurred\n", err); + pr_info("error %d occurred\n", err); printk(KERN_INFO "=================================================\n"); return err; } From e45048a6a232de1dc6978f2f4df6369beafa79c0 Mon Sep 17 00:00:00 2001 From: Vikram Narayanan Date: Wed, 10 Oct 2012 23:08:01 +0530 Subject: [PATCH 21/96] mtd: tests: mtd_readtest: Replace printk with pr_{info,err} Use pr_fmt instead of PRINT_PREF macro Signed-off-by: Vikram Narayanan Signed-off-by: Artem Bityutskiy --- drivers/mtd/tests/mtd_readtest.c | 42 ++++++++++++++++---------------- 1 file changed, 21 insertions(+), 21 deletions(-) diff --git a/drivers/mtd/tests/mtd_readtest.c b/drivers/mtd/tests/mtd_readtest.c index 121aba189ce..ec3efb53826 100644 --- a/drivers/mtd/tests/mtd_readtest.c +++ b/drivers/mtd/tests/mtd_readtest.c @@ -19,6 +19,8 @@ * Author: Adrian Hunter */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include #include #include @@ -27,8 +29,6 @@ #include #include -#define PRINT_PREF KERN_INFO "mtd_readtest: " - static int dev = -EINVAL; module_param(dev, int, S_IRUGO); MODULE_PARM_DESC(dev, "MTD device number to use"); @@ -56,7 +56,7 @@ static int read_eraseblock_by_page(int ebnum) if (ret == -EUCLEAN) ret = 0; if (ret || read != pgsize) { - printk(PRINT_PREF "error: read failed at %#llx\n", + pr_err("error: read failed at %#llx\n", (long long)addr); if (!err) err = ret; @@ -77,7 +77,7 @@ static int read_eraseblock_by_page(int ebnum) ret = mtd_read_oob(mtd, addr, &ops); if ((ret && !mtd_is_bitflip(ret)) || ops.oobretlen != mtd->oobsize) { - printk(PRINT_PREF "error: read oob failed at " + pr_err("error: read oob failed at " "%#llx\n", (long long)addr); if (!err) err = ret; @@ -99,7 +99,7 @@ static void dump_eraseblock(int ebnum) char line[128]; int pg, oob; - printk(PRINT_PREF "dumping eraseblock %d\n", ebnum); + pr_info("dumping eraseblock %d\n", ebnum); n = mtd->erasesize; for (i = 0; i < n;) { char *p = line; @@ -112,7 +112,7 @@ static void dump_eraseblock(int ebnum) } if (!mtd->oobsize) return; - printk(PRINT_PREF "dumping oob from eraseblock %d\n", ebnum); + pr_info("dumping oob from eraseblock %d\n", ebnum); n = mtd->oobsize; for (pg = 0, i = 0; pg < pgcnt; pg++) for (oob = 0; oob < n;) { @@ -134,7 +134,7 @@ static int is_block_bad(int ebnum) ret = mtd_block_isbad(mtd, addr); if (ret) - printk(PRINT_PREF "block %d is bad\n", ebnum); + pr_info("block %d is bad\n", ebnum); return ret; } @@ -144,21 +144,21 @@ static int scan_for_bad_eraseblocks(void) bbt = kzalloc(ebcnt, GFP_KERNEL); if (!bbt) { - printk(PRINT_PREF "error: cannot allocate memory\n"); + pr_err("error: cannot allocate memory\n"); return -ENOMEM; } if (!mtd_can_have_bb(mtd)) return 0; - printk(PRINT_PREF "scanning for bad eraseblocks\n"); + pr_info("scanning for bad eraseblocks\n"); for (i = 0; i < ebcnt; ++i) { bbt[i] = is_block_bad(i) ? 1 : 0; if (bbt[i]) bad += 1; cond_resched(); } - printk(PRINT_PREF "scanned %d eraseblocks, %d are bad\n", i, bad); + pr_info("scanned %d eraseblocks, %d are bad\n", i, bad); return 0; } @@ -171,21 +171,21 @@ static int __init mtd_readtest_init(void) printk(KERN_INFO "=================================================\n"); if (dev < 0) { - printk(PRINT_PREF "Please specify a valid mtd-device via module paramter\n"); + pr_info("Please specify a valid mtd-device via module paramter\n"); return -EINVAL; } - printk(PRINT_PREF "MTD device: %d\n", dev); + pr_info("MTD device: %d\n", dev); mtd = get_mtd_device(NULL, dev); if (IS_ERR(mtd)) { err = PTR_ERR(mtd); - printk(PRINT_PREF "error: Cannot get MTD device\n"); + pr_err("error: Cannot get MTD device\n"); return err; } if (mtd->writesize == 1) { - printk(PRINT_PREF "not NAND flash, assume page size is 512 " + pr_info("not NAND flash, assume page size is 512 " "bytes.\n"); pgsize = 512; } else @@ -196,7 +196,7 @@ static int __init mtd_readtest_init(void) ebcnt = tmp; pgcnt = mtd->erasesize / pgsize; - printk(PRINT_PREF "MTD device size %llu, eraseblock size %u, " + pr_info("MTD device size %llu, eraseblock size %u, " "page size %u, count of eraseblocks %u, pages per " "eraseblock %u, OOB size %u\n", (unsigned long long)mtd->size, mtd->erasesize, @@ -205,12 +205,12 @@ static int __init mtd_readtest_init(void) err = -ENOMEM; iobuf = kmalloc(mtd->erasesize, GFP_KERNEL); if (!iobuf) { - printk(PRINT_PREF "error: cannot allocate memory\n"); + pr_err("error: cannot allocate memory\n"); goto out; } iobuf1 = kmalloc(mtd->erasesize, GFP_KERNEL); if (!iobuf1) { - printk(PRINT_PREF "error: cannot allocate memory\n"); + pr_err("error: cannot allocate memory\n"); goto out; } @@ -219,7 +219,7 @@ static int __init mtd_readtest_init(void) goto out; /* Read all eraseblocks 1 page at a time */ - printk(PRINT_PREF "testing page read\n"); + pr_info("testing page read\n"); for (i = 0; i < ebcnt; ++i) { int ret; @@ -235,9 +235,9 @@ static int __init mtd_readtest_init(void) } if (err) - printk(PRINT_PREF "finished with errors\n"); + pr_info("finished with errors\n"); else - printk(PRINT_PREF "finished\n"); + pr_info("finished\n"); out: @@ -246,7 +246,7 @@ out: kfree(bbt); put_mtd_device(mtd); if (err) - printk(PRINT_PREF "error %d occurred\n", err); + pr_info("error %d occurred\n", err); printk(KERN_INFO "=================================================\n"); return err; } From ae0086cfeef14ec2b5aef625cb9be1d625aac33b Mon Sep 17 00:00:00 2001 From: Vikram Narayanan Date: Wed, 10 Oct 2012 23:10:22 +0530 Subject: [PATCH 22/96] mtd: tests: mtd_stresstest: Replace printk with pr_{info,crit,err} Use pr_fmt instead of PRINT_PREF macro Signed-off-by: Vikram Narayanan Signed-off-by: Artem Bityutskiy --- drivers/mtd/tests/mtd_stresstest.c | 44 +++++++++++++++--------------- 1 file changed, 22 insertions(+), 22 deletions(-) diff --git a/drivers/mtd/tests/mtd_stresstest.c b/drivers/mtd/tests/mtd_stresstest.c index cb268cebf01..fea1dd78ccb 100644 --- a/drivers/mtd/tests/mtd_stresstest.c +++ b/drivers/mtd/tests/mtd_stresstest.c @@ -19,6 +19,8 @@ * Author: Adrian Hunter */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include #include #include @@ -29,8 +31,6 @@ #include #include -#define PRINT_PREF KERN_INFO "mtd_stresstest: " - static int dev = -EINVAL; module_param(dev, int, S_IRUGO); MODULE_PARM_DESC(dev, "MTD device number to use"); @@ -94,12 +94,12 @@ static int erase_eraseblock(int ebnum) err = mtd_erase(mtd, &ei); if (unlikely(err)) { - printk(PRINT_PREF "error %d while erasing EB %d\n", err, ebnum); + pr_err("error %d while erasing EB %d\n", err, ebnum); return err; } if (unlikely(ei.state == MTD_ERASE_FAILED)) { - printk(PRINT_PREF "some erase error occurred at EB %d\n", + pr_err("some erase error occurred at EB %d\n", ebnum); return -EIO; } @@ -114,7 +114,7 @@ static int is_block_bad(int ebnum) ret = mtd_block_isbad(mtd, addr); if (ret) - printk(PRINT_PREF "block %d is bad\n", ebnum); + pr_info("block %d is bad\n", ebnum); return ret; } @@ -137,7 +137,7 @@ static int do_read(void) if (mtd_is_bitflip(err)) err = 0; if (unlikely(err || read != len)) { - printk(PRINT_PREF "error: read failed at 0x%llx\n", + pr_err("error: read failed at 0x%llx\n", (long long)addr); if (!err) err = -EINVAL; @@ -174,7 +174,7 @@ static int do_write(void) addr = eb * mtd->erasesize + offs; err = mtd_write(mtd, addr, len, &written, writebuf); if (unlikely(err || written != len)) { - printk(PRINT_PREF "error: write failed at 0x%llx\n", + pr_err("error: write failed at 0x%llx\n", (long long)addr); if (!err) err = -EINVAL; @@ -203,21 +203,21 @@ static int scan_for_bad_eraseblocks(void) bbt = kzalloc(ebcnt, GFP_KERNEL); if (!bbt) { - printk(PRINT_PREF "error: cannot allocate memory\n"); + pr_err("error: cannot allocate memory\n"); return -ENOMEM; } if (!mtd_can_have_bb(mtd)) return 0; - printk(PRINT_PREF "scanning for bad eraseblocks\n"); + pr_info("scanning for bad eraseblocks\n"); for (i = 0; i < ebcnt; ++i) { bbt[i] = is_block_bad(i) ? 1 : 0; if (bbt[i]) bad += 1; cond_resched(); } - printk(PRINT_PREF "scanned %d eraseblocks, %d are bad\n", i, bad); + pr_info("scanned %d eraseblocks, %d are bad\n", i, bad); return 0; } @@ -231,22 +231,22 @@ static int __init mtd_stresstest_init(void) printk(KERN_INFO "=================================================\n"); if (dev < 0) { - printk(PRINT_PREF "Please specify a valid mtd-device via module paramter\n"); - printk(KERN_CRIT "CAREFUL: This test wipes all data on the specified MTD device!\n"); + pr_info("Please specify a valid mtd-device via module paramter\n"); + pr_crit("CAREFUL: This test wipes all data on the specified MTD device!\n"); return -EINVAL; } - printk(PRINT_PREF "MTD device: %d\n", dev); + pr_info("MTD device: %d\n", dev); mtd = get_mtd_device(NULL, dev); if (IS_ERR(mtd)) { err = PTR_ERR(mtd); - printk(PRINT_PREF "error: cannot get MTD device\n"); + pr_err("error: cannot get MTD device\n"); return err; } if (mtd->writesize == 1) { - printk(PRINT_PREF "not NAND flash, assume page size is 512 " + pr_info("not NAND flash, assume page size is 512 " "bytes.\n"); pgsize = 512; } else @@ -257,14 +257,14 @@ static int __init mtd_stresstest_init(void) ebcnt = tmp; pgcnt = mtd->erasesize / pgsize; - printk(PRINT_PREF "MTD device size %llu, eraseblock size %u, " + pr_info("MTD device size %llu, eraseblock size %u, " "page size %u, count of eraseblocks %u, pages per " "eraseblock %u, OOB size %u\n", (unsigned long long)mtd->size, mtd->erasesize, pgsize, ebcnt, pgcnt, mtd->oobsize); if (ebcnt < 2) { - printk(PRINT_PREF "error: need at least 2 eraseblocks\n"); + pr_err("error: need at least 2 eraseblocks\n"); err = -ENOSPC; goto out_put_mtd; } @@ -277,7 +277,7 @@ static int __init mtd_stresstest_init(void) writebuf = vmalloc(bufsize); offsets = kmalloc(ebcnt * sizeof(int), GFP_KERNEL); if (!readbuf || !writebuf || !offsets) { - printk(PRINT_PREF "error: cannot allocate memory\n"); + pr_err("error: cannot allocate memory\n"); goto out; } for (i = 0; i < ebcnt; i++) @@ -290,16 +290,16 @@ static int __init mtd_stresstest_init(void) goto out; /* Do operations */ - printk(PRINT_PREF "doing operations\n"); + pr_info("doing operations\n"); for (op = 0; op < count; op++) { if ((op & 1023) == 0) - printk(PRINT_PREF "%d operations done\n", op); + pr_info("%d operations done\n", op); err = do_operation(); if (err) goto out; cond_resched(); } - printk(PRINT_PREF "finished, %d operations done\n", op); + pr_info("finished, %d operations done\n", op); out: kfree(offsets); @@ -309,7 +309,7 @@ out: out_put_mtd: put_mtd_device(mtd); if (err) - printk(PRINT_PREF "error %d occurred\n", err); + pr_info("error %d occurred\n", err); printk(KERN_INFO "=================================================\n"); return err; } From 2c70d292825df639d7ac765424098bdc1882bd49 Mon Sep 17 00:00:00 2001 From: Vikram Narayanan Date: Wed, 10 Oct 2012 23:10:02 +0530 Subject: [PATCH 23/96] mtd: tests: mtd_speedtest: Replace printk with pr_{info,crit,err} Use pr_fmt instead of PRINT_PREF macro Signed-off-by: Vikram Narayanan Signed-off-by: Artem Bityutskiy --- drivers/mtd/tests/mtd_speedtest.c | 88 +++++++++++++++---------------- 1 file changed, 44 insertions(+), 44 deletions(-) diff --git a/drivers/mtd/tests/mtd_speedtest.c b/drivers/mtd/tests/mtd_speedtest.c index 42b0f7456fc..8a5803b1724 100644 --- a/drivers/mtd/tests/mtd_speedtest.c +++ b/drivers/mtd/tests/mtd_speedtest.c @@ -19,6 +19,8 @@ * Author: Adrian Hunter */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include #include #include @@ -28,8 +30,6 @@ #include #include -#define PRINT_PREF KERN_INFO "mtd_speedtest: " - static int dev = -EINVAL; module_param(dev, int, S_IRUGO); MODULE_PARM_DESC(dev, "MTD device number to use"); @@ -70,12 +70,12 @@ static int erase_eraseblock(int ebnum) err = mtd_erase(mtd, &ei); if (err) { - printk(PRINT_PREF "error %d while erasing EB %d\n", err, ebnum); + pr_err("error %d while erasing EB %d\n", err, ebnum); return err; } if (ei.state == MTD_ERASE_FAILED) { - printk(PRINT_PREF "some erase error occurred at EB %d\n", + pr_err("some erase error occurred at EB %d\n", ebnum); return -EIO; } @@ -96,13 +96,13 @@ static int multiblock_erase(int ebnum, int blocks) err = mtd_erase(mtd, &ei); if (err) { - printk(PRINT_PREF "error %d while erasing EB %d, blocks %d\n", + pr_err("error %d while erasing EB %d, blocks %d\n", err, ebnum, blocks); return err; } if (ei.state == MTD_ERASE_FAILED) { - printk(PRINT_PREF "some erase error occurred at EB %d," + pr_err("some erase error occurred at EB %d," "blocks %d\n", ebnum, blocks); return -EIO; } @@ -134,7 +134,7 @@ static int write_eraseblock(int ebnum) err = mtd_write(mtd, addr, mtd->erasesize, &written, iobuf); if (err || written != mtd->erasesize) { - printk(PRINT_PREF "error: write failed at %#llx\n", addr); + pr_err("error: write failed at %#llx\n", addr); if (!err) err = -EINVAL; } @@ -152,7 +152,7 @@ static int write_eraseblock_by_page(int ebnum) for (i = 0; i < pgcnt; i++) { err = mtd_write(mtd, addr, pgsize, &written, buf); if (err || written != pgsize) { - printk(PRINT_PREF "error: write failed at %#llx\n", + pr_err("error: write failed at %#llx\n", addr); if (!err) err = -EINVAL; @@ -175,7 +175,7 @@ static int write_eraseblock_by_2pages(int ebnum) for (i = 0; i < n; i++) { err = mtd_write(mtd, addr, sz, &written, buf); if (err || written != sz) { - printk(PRINT_PREF "error: write failed at %#llx\n", + pr_err("error: write failed at %#llx\n", addr); if (!err) err = -EINVAL; @@ -187,7 +187,7 @@ static int write_eraseblock_by_2pages(int ebnum) if (pgcnt % 2) { err = mtd_write(mtd, addr, pgsize, &written, buf); if (err || written != pgsize) { - printk(PRINT_PREF "error: write failed at %#llx\n", + pr_err("error: write failed at %#llx\n", addr); if (!err) err = -EINVAL; @@ -208,7 +208,7 @@ static int read_eraseblock(int ebnum) if (mtd_is_bitflip(err)) err = 0; if (err || read != mtd->erasesize) { - printk(PRINT_PREF "error: read failed at %#llx\n", addr); + pr_err("error: read failed at %#llx\n", addr); if (!err) err = -EINVAL; } @@ -229,7 +229,7 @@ static int read_eraseblock_by_page(int ebnum) if (mtd_is_bitflip(err)) err = 0; if (err || read != pgsize) { - printk(PRINT_PREF "error: read failed at %#llx\n", + pr_err("error: read failed at %#llx\n", addr); if (!err) err = -EINVAL; @@ -255,7 +255,7 @@ static int read_eraseblock_by_2pages(int ebnum) if (mtd_is_bitflip(err)) err = 0; if (err || read != sz) { - printk(PRINT_PREF "error: read failed at %#llx\n", + pr_err("error: read failed at %#llx\n", addr); if (!err) err = -EINVAL; @@ -270,7 +270,7 @@ static int read_eraseblock_by_2pages(int ebnum) if (mtd_is_bitflip(err)) err = 0; if (err || read != pgsize) { - printk(PRINT_PREF "error: read failed at %#llx\n", + pr_err("error: read failed at %#llx\n", addr); if (!err) err = -EINVAL; @@ -287,7 +287,7 @@ static int is_block_bad(int ebnum) ret = mtd_block_isbad(mtd, addr); if (ret) - printk(PRINT_PREF "block %d is bad\n", ebnum); + pr_info("block %d is bad\n", ebnum); return ret; } @@ -321,21 +321,21 @@ static int scan_for_bad_eraseblocks(void) bbt = kzalloc(ebcnt, GFP_KERNEL); if (!bbt) { - printk(PRINT_PREF "error: cannot allocate memory\n"); + pr_err("error: cannot allocate memory\n"); return -ENOMEM; } if (!mtd_can_have_bb(mtd)) goto out; - printk(PRINT_PREF "scanning for bad eraseblocks\n"); + pr_info("scanning for bad eraseblocks\n"); for (i = 0; i < ebcnt; ++i) { bbt[i] = is_block_bad(i) ? 1 : 0; if (bbt[i]) bad += 1; cond_resched(); } - printk(PRINT_PREF "scanned %d eraseblocks, %d are bad\n", i, bad); + pr_info("scanned %d eraseblocks, %d are bad\n", i, bad); out: goodebcnt = ebcnt - bad; return 0; @@ -351,25 +351,25 @@ static int __init mtd_speedtest_init(void) printk(KERN_INFO "=================================================\n"); if (dev < 0) { - printk(PRINT_PREF "Please specify a valid mtd-device via module paramter\n"); - printk(KERN_CRIT "CAREFUL: This test wipes all data on the specified MTD device!\n"); + pr_info("Please specify a valid mtd-device via module paramter\n"); + pr_crit("CAREFUL: This test wipes all data on the specified MTD device!\n"); return -EINVAL; } if (count) - printk(PRINT_PREF "MTD device: %d count: %d\n", dev, count); + pr_info("MTD device: %d count: %d\n", dev, count); else - printk(PRINT_PREF "MTD device: %d\n", dev); + pr_info("MTD device: %d\n", dev); mtd = get_mtd_device(NULL, dev); if (IS_ERR(mtd)) { err = PTR_ERR(mtd); - printk(PRINT_PREF "error: cannot get MTD device\n"); + pr_err("error: cannot get MTD device\n"); return err; } if (mtd->writesize == 1) { - printk(PRINT_PREF "not NAND flash, assume page size is 512 " + pr_info("not NAND flash, assume page size is 512 " "bytes.\n"); pgsize = 512; } else @@ -380,7 +380,7 @@ static int __init mtd_speedtest_init(void) ebcnt = tmp; pgcnt = mtd->erasesize / pgsize; - printk(PRINT_PREF "MTD device size %llu, eraseblock size %u, " + pr_info("MTD device size %llu, eraseblock size %u, " "page size %u, count of eraseblocks %u, pages per " "eraseblock %u, OOB size %u\n", (unsigned long long)mtd->size, mtd->erasesize, @@ -392,7 +392,7 @@ static int __init mtd_speedtest_init(void) err = -ENOMEM; iobuf = kmalloc(mtd->erasesize, GFP_KERNEL); if (!iobuf) { - printk(PRINT_PREF "error: cannot allocate memory\n"); + pr_err("error: cannot allocate memory\n"); goto out; } @@ -407,7 +407,7 @@ static int __init mtd_speedtest_init(void) goto out; /* Write all eraseblocks, 1 eraseblock at a time */ - printk(PRINT_PREF "testing eraseblock write speed\n"); + pr_info("testing eraseblock write speed\n"); start_timing(); for (i = 0; i < ebcnt; ++i) { if (bbt[i]) @@ -419,10 +419,10 @@ static int __init mtd_speedtest_init(void) } stop_timing(); speed = calc_speed(); - printk(PRINT_PREF "eraseblock write speed is %ld KiB/s\n", speed); + pr_info("eraseblock write speed is %ld KiB/s\n", speed); /* Read all eraseblocks, 1 eraseblock at a time */ - printk(PRINT_PREF "testing eraseblock read speed\n"); + pr_info("testing eraseblock read speed\n"); start_timing(); for (i = 0; i < ebcnt; ++i) { if (bbt[i]) @@ -434,14 +434,14 @@ static int __init mtd_speedtest_init(void) } stop_timing(); speed = calc_speed(); - printk(PRINT_PREF "eraseblock read speed is %ld KiB/s\n", speed); + pr_info("eraseblock read speed is %ld KiB/s\n", speed); err = erase_whole_device(); if (err) goto out; /* Write all eraseblocks, 1 page at a time */ - printk(PRINT_PREF "testing page write speed\n"); + pr_info("testing page write speed\n"); start_timing(); for (i = 0; i < ebcnt; ++i) { if (bbt[i]) @@ -453,10 +453,10 @@ static int __init mtd_speedtest_init(void) } stop_timing(); speed = calc_speed(); - printk(PRINT_PREF "page write speed is %ld KiB/s\n", speed); + pr_info("page write speed is %ld KiB/s\n", speed); /* Read all eraseblocks, 1 page at a time */ - printk(PRINT_PREF "testing page read speed\n"); + pr_info("testing page read speed\n"); start_timing(); for (i = 0; i < ebcnt; ++i) { if (bbt[i]) @@ -468,14 +468,14 @@ static int __init mtd_speedtest_init(void) } stop_timing(); speed = calc_speed(); - printk(PRINT_PREF "page read speed is %ld KiB/s\n", speed); + pr_info("page read speed is %ld KiB/s\n", speed); err = erase_whole_device(); if (err) goto out; /* Write all eraseblocks, 2 pages at a time */ - printk(PRINT_PREF "testing 2 page write speed\n"); + pr_info("testing 2 page write speed\n"); start_timing(); for (i = 0; i < ebcnt; ++i) { if (bbt[i]) @@ -487,10 +487,10 @@ static int __init mtd_speedtest_init(void) } stop_timing(); speed = calc_speed(); - printk(PRINT_PREF "2 page write speed is %ld KiB/s\n", speed); + pr_info("2 page write speed is %ld KiB/s\n", speed); /* Read all eraseblocks, 2 pages at a time */ - printk(PRINT_PREF "testing 2 page read speed\n"); + pr_info("testing 2 page read speed\n"); start_timing(); for (i = 0; i < ebcnt; ++i) { if (bbt[i]) @@ -502,10 +502,10 @@ static int __init mtd_speedtest_init(void) } stop_timing(); speed = calc_speed(); - printk(PRINT_PREF "2 page read speed is %ld KiB/s\n", speed); + pr_info("2 page read speed is %ld KiB/s\n", speed); /* Erase all eraseblocks */ - printk(PRINT_PREF "Testing erase speed\n"); + pr_info("Testing erase speed\n"); start_timing(); for (i = 0; i < ebcnt; ++i) { if (bbt[i]) @@ -517,12 +517,12 @@ static int __init mtd_speedtest_init(void) } stop_timing(); speed = calc_speed(); - printk(PRINT_PREF "erase speed is %ld KiB/s\n", speed); + pr_info("erase speed is %ld KiB/s\n", speed); /* Multi-block erase all eraseblocks */ for (k = 1; k < 7; k++) { blocks = 1 << k; - printk(PRINT_PREF "Testing %dx multi-block erase speed\n", + pr_info("Testing %dx multi-block erase speed\n", blocks); start_timing(); for (i = 0; i < ebcnt; ) { @@ -541,16 +541,16 @@ static int __init mtd_speedtest_init(void) } stop_timing(); speed = calc_speed(); - printk(PRINT_PREF "%dx multi-block erase speed is %ld KiB/s\n", + pr_info("%dx multi-block erase speed is %ld KiB/s\n", blocks, speed); } - printk(PRINT_PREF "finished\n"); + pr_info("finished\n"); out: kfree(iobuf); kfree(bbt); put_mtd_device(mtd); if (err) - printk(PRINT_PREF "error %d occurred\n", err); + pr_info("error %d occurred\n", err); printk(KERN_INFO "=================================================\n"); return err; } From cd66a2df7c29e51ed90f298abbb6f698fa424a08 Mon Sep 17 00:00:00 2001 From: Vikram Narayanan Date: Wed, 10 Oct 2012 23:11:06 +0530 Subject: [PATCH 24/96] mtd: tests: mtd_subpagetest: replace printk with pr_{info,crit,err} Use pr_fmt instead of PRINT_PREF macro Signed-off-by: Vikram Narayanan Signed-off-by: Artem Bityutskiy --- drivers/mtd/tests/mtd_subpagetest.c | 124 ++++++++++++++-------------- 1 file changed, 62 insertions(+), 62 deletions(-) diff --git a/drivers/mtd/tests/mtd_subpagetest.c b/drivers/mtd/tests/mtd_subpagetest.c index 9667bf53528..8813b0e8663 100644 --- a/drivers/mtd/tests/mtd_subpagetest.c +++ b/drivers/mtd/tests/mtd_subpagetest.c @@ -19,6 +19,8 @@ * */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include #include #include @@ -27,8 +29,6 @@ #include #include -#define PRINT_PREF KERN_INFO "mtd_subpagetest: " - static int dev = -EINVAL; module_param(dev, int, S_IRUGO); MODULE_PARM_DESC(dev, "MTD device number to use"); @@ -82,12 +82,12 @@ static int erase_eraseblock(int ebnum) err = mtd_erase(mtd, &ei); if (err) { - printk(PRINT_PREF "error %d while erasing EB %d\n", err, ebnum); + pr_err("error %d while erasing EB %d\n", err, ebnum); return err; } if (ei.state == MTD_ERASE_FAILED) { - printk(PRINT_PREF "some erase error occurred at EB %d\n", + pr_err("some erase error occurred at EB %d\n", ebnum); return -EIO; } @@ -100,7 +100,7 @@ static int erase_whole_device(void) int err; unsigned int i; - printk(PRINT_PREF "erasing whole device\n"); + pr_info("erasing whole device\n"); for (i = 0; i < ebcnt; ++i) { if (bbt[i]) continue; @@ -109,7 +109,7 @@ static int erase_whole_device(void) return err; cond_resched(); } - printk(PRINT_PREF "erased %u eraseblocks\n", i); + pr_info("erased %u eraseblocks\n", i); return 0; } @@ -122,11 +122,11 @@ static int write_eraseblock(int ebnum) set_random_data(writebuf, subpgsize); err = mtd_write(mtd, addr, subpgsize, &written, writebuf); if (unlikely(err || written != subpgsize)) { - printk(PRINT_PREF "error: write failed at %#llx\n", + pr_err("error: write failed at %#llx\n", (long long)addr); if (written != subpgsize) { - printk(PRINT_PREF " write size: %#x\n", subpgsize); - printk(PRINT_PREF " written: %#zx\n", written); + pr_err(" write size: %#x\n", subpgsize); + pr_err(" written: %#zx\n", written); } return err ? err : -1; } @@ -136,11 +136,11 @@ static int write_eraseblock(int ebnum) set_random_data(writebuf, subpgsize); err = mtd_write(mtd, addr, subpgsize, &written, writebuf); if (unlikely(err || written != subpgsize)) { - printk(PRINT_PREF "error: write failed at %#llx\n", + pr_err("error: write failed at %#llx\n", (long long)addr); if (written != subpgsize) { - printk(PRINT_PREF " write size: %#x\n", subpgsize); - printk(PRINT_PREF " written: %#zx\n", written); + pr_err(" write size: %#x\n", subpgsize); + pr_err(" written: %#zx\n", written); } return err ? err : -1; } @@ -160,12 +160,12 @@ static int write_eraseblock2(int ebnum) set_random_data(writebuf, subpgsize * k); err = mtd_write(mtd, addr, subpgsize * k, &written, writebuf); if (unlikely(err || written != subpgsize * k)) { - printk(PRINT_PREF "error: write failed at %#llx\n", + pr_err("error: write failed at %#llx\n", (long long)addr); if (written != subpgsize) { - printk(PRINT_PREF " write size: %#x\n", + pr_err(" write size: %#x\n", subpgsize * k); - printk(PRINT_PREF " written: %#08zx\n", + pr_err(" written: %#08zx\n", written); } return err ? err : -1; @@ -198,23 +198,23 @@ static int verify_eraseblock(int ebnum) err = mtd_read(mtd, addr, subpgsize, &read, readbuf); if (unlikely(err || read != subpgsize)) { if (mtd_is_bitflip(err) && read == subpgsize) { - printk(PRINT_PREF "ECC correction at %#llx\n", + pr_info("ECC correction at %#llx\n", (long long)addr); err = 0; } else { - printk(PRINT_PREF "error: read failed at %#llx\n", + pr_err("error: read failed at %#llx\n", (long long)addr); return err ? err : -1; } } if (unlikely(memcmp(readbuf, writebuf, subpgsize))) { - printk(PRINT_PREF "error: verify failed at %#llx\n", + pr_err("error: verify failed at %#llx\n", (long long)addr); - printk(PRINT_PREF "------------- written----------------\n"); + pr_info("------------- written----------------\n"); print_subpage(writebuf); - printk(PRINT_PREF "------------- read ------------------\n"); + pr_info("------------- read ------------------\n"); print_subpage(readbuf); - printk(PRINT_PREF "-------------------------------------\n"); + pr_info("-------------------------------------\n"); errcnt += 1; } @@ -225,23 +225,23 @@ static int verify_eraseblock(int ebnum) err = mtd_read(mtd, addr, subpgsize, &read, readbuf); if (unlikely(err || read != subpgsize)) { if (mtd_is_bitflip(err) && read == subpgsize) { - printk(PRINT_PREF "ECC correction at %#llx\n", + pr_info("ECC correction at %#llx\n", (long long)addr); err = 0; } else { - printk(PRINT_PREF "error: read failed at %#llx\n", + pr_err("error: read failed at %#llx\n", (long long)addr); return err ? err : -1; } } if (unlikely(memcmp(readbuf, writebuf, subpgsize))) { - printk(PRINT_PREF "error: verify failed at %#llx\n", + pr_info("error: verify failed at %#llx\n", (long long)addr); - printk(PRINT_PREF "------------- written----------------\n"); + pr_info("------------- written----------------\n"); print_subpage(writebuf); - printk(PRINT_PREF "------------- read ------------------\n"); + pr_info("------------- read ------------------\n"); print_subpage(readbuf); - printk(PRINT_PREF "-------------------------------------\n"); + pr_info("-------------------------------------\n"); errcnt += 1; } @@ -262,17 +262,17 @@ static int verify_eraseblock2(int ebnum) err = mtd_read(mtd, addr, subpgsize * k, &read, readbuf); if (unlikely(err || read != subpgsize * k)) { if (mtd_is_bitflip(err) && read == subpgsize * k) { - printk(PRINT_PREF "ECC correction at %#llx\n", + pr_info("ECC correction at %#llx\n", (long long)addr); err = 0; } else { - printk(PRINT_PREF "error: read failed at " + pr_err("error: read failed at " "%#llx\n", (long long)addr); return err ? err : -1; } } if (unlikely(memcmp(readbuf, writebuf, subpgsize * k))) { - printk(PRINT_PREF "error: verify failed at %#llx\n", + pr_err("error: verify failed at %#llx\n", (long long)addr); errcnt += 1; } @@ -295,17 +295,17 @@ static int verify_eraseblock_ff(int ebnum) err = mtd_read(mtd, addr, subpgsize, &read, readbuf); if (unlikely(err || read != subpgsize)) { if (mtd_is_bitflip(err) && read == subpgsize) { - printk(PRINT_PREF "ECC correction at %#llx\n", + pr_info("ECC correction at %#llx\n", (long long)addr); err = 0; } else { - printk(PRINT_PREF "error: read failed at " + pr_err("error: read failed at " "%#llx\n", (long long)addr); return err ? err : -1; } } if (unlikely(memcmp(readbuf, writebuf, subpgsize))) { - printk(PRINT_PREF "error: verify 0xff failed at " + pr_err("error: verify 0xff failed at " "%#llx\n", (long long)addr); errcnt += 1; } @@ -320,7 +320,7 @@ static int verify_all_eraseblocks_ff(void) int err; unsigned int i; - printk(PRINT_PREF "verifying all eraseblocks for 0xff\n"); + pr_info("verifying all eraseblocks for 0xff\n"); for (i = 0; i < ebcnt; ++i) { if (bbt[i]) continue; @@ -328,10 +328,10 @@ static int verify_all_eraseblocks_ff(void) if (err) return err; if (i % 256 == 0) - printk(PRINT_PREF "verified up to eraseblock %u\n", i); + pr_info("verified up to eraseblock %u\n", i); cond_resched(); } - printk(PRINT_PREF "verified %u eraseblocks\n", i); + pr_info("verified %u eraseblocks\n", i); return 0; } @@ -342,7 +342,7 @@ static int is_block_bad(int ebnum) ret = mtd_block_isbad(mtd, addr); if (ret) - printk(PRINT_PREF "block %d is bad\n", ebnum); + pr_info("block %d is bad\n", ebnum); return ret; } @@ -352,18 +352,18 @@ static int scan_for_bad_eraseblocks(void) bbt = kzalloc(ebcnt, GFP_KERNEL); if (!bbt) { - printk(PRINT_PREF "error: cannot allocate memory\n"); + pr_err("error: cannot allocate memory\n"); return -ENOMEM; } - printk(PRINT_PREF "scanning for bad eraseblocks\n"); + pr_info("scanning for bad eraseblocks\n"); for (i = 0; i < ebcnt; ++i) { bbt[i] = is_block_bad(i) ? 1 : 0; if (bbt[i]) bad += 1; cond_resched(); } - printk(PRINT_PREF "scanned %d eraseblocks, %d are bad\n", i, bad); + pr_info("scanned %d eraseblocks, %d are bad\n", i, bad); return 0; } @@ -377,22 +377,22 @@ static int __init mtd_subpagetest_init(void) printk(KERN_INFO "=================================================\n"); if (dev < 0) { - printk(PRINT_PREF "Please specify a valid mtd-device via module paramter\n"); - printk(KERN_CRIT "CAREFUL: This test wipes all data on the specified MTD device!\n"); + pr_info("Please specify a valid mtd-device via module paramter\n"); + pr_crit("CAREFUL: This test wipes all data on the specified MTD device!\n"); return -EINVAL; } - printk(PRINT_PREF "MTD device: %d\n", dev); + pr_info("MTD device: %d\n", dev); mtd = get_mtd_device(NULL, dev); if (IS_ERR(mtd)) { err = PTR_ERR(mtd); - printk(PRINT_PREF "error: cannot get MTD device\n"); + pr_err("error: cannot get MTD device\n"); return err; } if (mtd->type != MTD_NANDFLASH) { - printk(PRINT_PREF "this test requires NAND flash\n"); + pr_info("this test requires NAND flash\n"); goto out; } @@ -402,7 +402,7 @@ static int __init mtd_subpagetest_init(void) ebcnt = tmp; pgcnt = mtd->erasesize / mtd->writesize; - printk(PRINT_PREF "MTD device size %llu, eraseblock size %u, " + pr_info("MTD device size %llu, eraseblock size %u, " "page size %u, subpage size %u, count of eraseblocks %u, " "pages per eraseblock %u, OOB size %u\n", (unsigned long long)mtd->size, mtd->erasesize, @@ -412,12 +412,12 @@ static int __init mtd_subpagetest_init(void) bufsize = subpgsize * 32; writebuf = kmalloc(bufsize, GFP_KERNEL); if (!writebuf) { - printk(PRINT_PREF "error: cannot allocate memory\n"); + pr_info("error: cannot allocate memory\n"); goto out; } readbuf = kmalloc(bufsize, GFP_KERNEL); if (!readbuf) { - printk(PRINT_PREF "error: cannot allocate memory\n"); + pr_info("error: cannot allocate memory\n"); goto out; } @@ -429,7 +429,7 @@ static int __init mtd_subpagetest_init(void) if (err) goto out; - printk(PRINT_PREF "writing whole device\n"); + pr_info("writing whole device\n"); simple_srand(1); for (i = 0; i < ebcnt; ++i) { if (bbt[i]) @@ -438,13 +438,13 @@ static int __init mtd_subpagetest_init(void) if (unlikely(err)) goto out; if (i % 256 == 0) - printk(PRINT_PREF "written up to eraseblock %u\n", i); + pr_info("written up to eraseblock %u\n", i); cond_resched(); } - printk(PRINT_PREF "written %u eraseblocks\n", i); + pr_info("written %u eraseblocks\n", i); simple_srand(1); - printk(PRINT_PREF "verifying all eraseblocks\n"); + pr_info("verifying all eraseblocks\n"); for (i = 0; i < ebcnt; ++i) { if (bbt[i]) continue; @@ -452,10 +452,10 @@ static int __init mtd_subpagetest_init(void) if (unlikely(err)) goto out; if (i % 256 == 0) - printk(PRINT_PREF "verified up to eraseblock %u\n", i); + pr_info("verified up to eraseblock %u\n", i); cond_resched(); } - printk(PRINT_PREF "verified %u eraseblocks\n", i); + pr_info("verified %u eraseblocks\n", i); err = erase_whole_device(); if (err) @@ -467,7 +467,7 @@ static int __init mtd_subpagetest_init(void) /* Write all eraseblocks */ simple_srand(3); - printk(PRINT_PREF "writing whole device\n"); + pr_info("writing whole device\n"); for (i = 0; i < ebcnt; ++i) { if (bbt[i]) continue; @@ -475,14 +475,14 @@ static int __init mtd_subpagetest_init(void) if (unlikely(err)) goto out; if (i % 256 == 0) - printk(PRINT_PREF "written up to eraseblock %u\n", i); + pr_info("written up to eraseblock %u\n", i); cond_resched(); } - printk(PRINT_PREF "written %u eraseblocks\n", i); + pr_info("written %u eraseblocks\n", i); /* Check all eraseblocks */ simple_srand(3); - printk(PRINT_PREF "verifying all eraseblocks\n"); + pr_info("verifying all eraseblocks\n"); for (i = 0; i < ebcnt; ++i) { if (bbt[i]) continue; @@ -490,10 +490,10 @@ static int __init mtd_subpagetest_init(void) if (unlikely(err)) goto out; if (i % 256 == 0) - printk(PRINT_PREF "verified up to eraseblock %u\n", i); + pr_info("verified up to eraseblock %u\n", i); cond_resched(); } - printk(PRINT_PREF "verified %u eraseblocks\n", i); + pr_info("verified %u eraseblocks\n", i); err = erase_whole_device(); if (err) @@ -503,7 +503,7 @@ static int __init mtd_subpagetest_init(void) if (err) goto out; - printk(PRINT_PREF "finished with %d errors\n", errcnt); + pr_info("finished with %d errors\n", errcnt); out: kfree(bbt); @@ -511,7 +511,7 @@ out: kfree(writebuf); put_mtd_device(mtd); if (err) - printk(PRINT_PREF "error %d occurred\n", err); + pr_info("error %d occurred\n", err); printk(KERN_INFO "=================================================\n"); return err; } From 95637c3a0e2db200fd4030e7ed5f1138d81f16ae Mon Sep 17 00:00:00 2001 From: Vikram Narayanan Date: Wed, 10 Oct 2012 23:11:37 +0530 Subject: [PATCH 25/96] mtd: tests: mtd_torturetest: Replace printk with pr_{info,crit} Use pr_fmt instead of PRINT_PREF macro Signed-off-by: Vikram Narayanan Signed-off-by: Artem Bityutskiy --- drivers/mtd/tests/mtd_torturetest.c | 73 +++++++++++++++-------------- 1 file changed, 37 insertions(+), 36 deletions(-) diff --git a/drivers/mtd/tests/mtd_torturetest.c b/drivers/mtd/tests/mtd_torturetest.c index b65861bc7b8..98d2a820625 100644 --- a/drivers/mtd/tests/mtd_torturetest.c +++ b/drivers/mtd/tests/mtd_torturetest.c @@ -23,6 +23,8 @@ * damage caused by this program. */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include #include #include @@ -31,7 +33,6 @@ #include #include -#define PRINT_PREF KERN_INFO "mtd_torturetest: " #define RETRIES 3 static int eb = 8; @@ -107,12 +108,12 @@ static inline int erase_eraseblock(int ebnum) err = mtd_erase(mtd, &ei); if (err) { - printk(PRINT_PREF "error %d while erasing EB %d\n", err, ebnum); + pr_err("error %d while erasing EB %d\n", err, ebnum); return err; } if (ei.state == MTD_ERASE_FAILED) { - printk(PRINT_PREF "some erase error occurred at EB %d\n", + pr_err("some erase error occurred at EB %d\n", ebnum); return -EIO; } @@ -139,40 +140,40 @@ static inline int check_eraseblock(int ebnum, unsigned char *buf) retry: err = mtd_read(mtd, addr, len, &read, check_buf); if (mtd_is_bitflip(err)) - printk(PRINT_PREF "single bit flip occurred at EB %d " + pr_err("single bit flip occurred at EB %d " "MTD reported that it was fixed.\n", ebnum); else if (err) { - printk(PRINT_PREF "error %d while reading EB %d, " + pr_err("error %d while reading EB %d, " "read %zd\n", err, ebnum, read); return err; } if (read != len) { - printk(PRINT_PREF "failed to read %zd bytes from EB %d, " + pr_err("failed to read %zd bytes from EB %d, " "read only %zd, but no error reported\n", len, ebnum, read); return -EIO; } if (memcmp(buf, check_buf, len)) { - printk(PRINT_PREF "read wrong data from EB %d\n", ebnum); + pr_err("read wrong data from EB %d\n", ebnum); report_corrupt(check_buf, buf); if (retries++ < RETRIES) { /* Try read again */ yield(); - printk(PRINT_PREF "re-try reading data from EB %d\n", + pr_info("re-try reading data from EB %d\n", ebnum); goto retry; } else { - printk(PRINT_PREF "retried %d times, still errors, " + pr_info("retried %d times, still errors, " "give-up\n", RETRIES); return -EINVAL; } } if (retries != 0) - printk(PRINT_PREF "only attempt number %d was OK (!!!)\n", + pr_info("only attempt number %d was OK (!!!)\n", retries); return 0; @@ -191,12 +192,12 @@ static inline int write_pattern(int ebnum, void *buf) } err = mtd_write(mtd, addr, len, &written, buf); if (err) { - printk(PRINT_PREF "error %d while writing EB %d, written %zd" + pr_err("error %d while writing EB %d, written %zd" " bytes\n", err, ebnum, written); return err; } if (written != len) { - printk(PRINT_PREF "written only %zd bytes of %zd, but no error" + pr_info("written only %zd bytes of %zd, but no error" " reported\n", written, len); return -EIO; } @@ -211,64 +212,64 @@ static int __init tort_init(void) printk(KERN_INFO "\n"); printk(KERN_INFO "=================================================\n"); - printk(PRINT_PREF "Warning: this program is trying to wear out your " + pr_info("Warning: this program is trying to wear out your " "flash, stop it if this is not wanted.\n"); if (dev < 0) { - printk(PRINT_PREF "Please specify a valid mtd-device via module paramter\n"); - printk(KERN_CRIT "CAREFUL: This test wipes all data on the specified MTD device!\n"); + pr_info("Please specify a valid mtd-device via module paramter\n"); + pr_crit("CAREFUL: This test wipes all data on the specified MTD device!\n"); return -EINVAL; } - printk(PRINT_PREF "MTD device: %d\n", dev); - printk(PRINT_PREF "torture %d eraseblocks (%d-%d) of mtd%d\n", + pr_info("MTD device: %d\n", dev); + pr_info("torture %d eraseblocks (%d-%d) of mtd%d\n", ebcnt, eb, eb + ebcnt - 1, dev); if (pgcnt) - printk(PRINT_PREF "torturing just %d pages per eraseblock\n", + pr_info("torturing just %d pages per eraseblock\n", pgcnt); - printk(PRINT_PREF "write verify %s\n", check ? "enabled" : "disabled"); + pr_info("write verify %s\n", check ? "enabled" : "disabled"); mtd = get_mtd_device(NULL, dev); if (IS_ERR(mtd)) { err = PTR_ERR(mtd); - printk(PRINT_PREF "error: cannot get MTD device\n"); + pr_err("error: cannot get MTD device\n"); return err; } if (mtd->writesize == 1) { - printk(PRINT_PREF "not NAND flash, assume page size is 512 " + pr_info("not NAND flash, assume page size is 512 " "bytes.\n"); pgsize = 512; } else pgsize = mtd->writesize; if (pgcnt && (pgcnt > mtd->erasesize / pgsize || pgcnt < 0)) { - printk(PRINT_PREF "error: invalid pgcnt value %d\n", pgcnt); + pr_err("error: invalid pgcnt value %d\n", pgcnt); goto out_mtd; } err = -ENOMEM; patt_5A5 = kmalloc(mtd->erasesize, GFP_KERNEL); if (!patt_5A5) { - printk(PRINT_PREF "error: cannot allocate memory\n"); + pr_err("error: cannot allocate memory\n"); goto out_mtd; } patt_A5A = kmalloc(mtd->erasesize, GFP_KERNEL); if (!patt_A5A) { - printk(PRINT_PREF "error: cannot allocate memory\n"); + pr_err("error: cannot allocate memory\n"); goto out_patt_5A5; } patt_FF = kmalloc(mtd->erasesize, GFP_KERNEL); if (!patt_FF) { - printk(PRINT_PREF "error: cannot allocate memory\n"); + pr_err("error: cannot allocate memory\n"); goto out_patt_A5A; } check_buf = kmalloc(mtd->erasesize, GFP_KERNEL); if (!check_buf) { - printk(PRINT_PREF "error: cannot allocate memory\n"); + pr_err("error: cannot allocate memory\n"); goto out_patt_FF; } @@ -295,13 +296,13 @@ static int __init tort_init(void) err = mtd_block_isbad(mtd, (loff_t)i * mtd->erasesize); if (err < 0) { - printk(PRINT_PREF "block_isbad() returned %d " + pr_info("block_isbad() returned %d " "for EB %d\n", err, i); goto out; } if (err) { - printk("EB %d is bad. Skip it.\n", i); + pr_err("EB %d is bad. Skip it.\n", i); bad_ebs[i - eb] = 1; } } @@ -329,7 +330,7 @@ static int __init tort_init(void) continue; err = check_eraseblock(i, patt_FF); if (err) { - printk(PRINT_PREF "verify failed" + pr_info("verify failed" " for 0xFF... pattern\n"); goto out; } @@ -362,7 +363,7 @@ static int __init tort_init(void) patt = patt_A5A; err = check_eraseblock(i, patt); if (err) { - printk(PRINT_PREF "verify failed for %s" + pr_info("verify failed for %s" " pattern\n", ((eb + erase_cycles) & 1) ? "0x55AA55..." : "0xAA55AA..."); @@ -380,7 +381,7 @@ static int __init tort_init(void) stop_timing(); ms = (finish.tv_sec - start.tv_sec) * 1000 + (finish.tv_usec - start.tv_usec) / 1000; - printk(PRINT_PREF "%08u erase cycles done, took %lu " + pr_info("%08u erase cycles done, took %lu " "milliseconds (%lu seconds)\n", erase_cycles, ms, ms / 1000); start_timing(); @@ -391,7 +392,7 @@ static int __init tort_init(void) } out: - printk(PRINT_PREF "finished after %u erase cycles\n", + pr_info("finished after %u erase cycles\n", erase_cycles); kfree(check_buf); out_patt_FF: @@ -403,7 +404,7 @@ out_patt_5A5: out_mtd: put_mtd_device(mtd); if (err) - printk(PRINT_PREF "error %d occurred during torturing\n", err); + pr_info("error %d occurred during torturing\n", err); printk(KERN_INFO "=================================================\n"); return err; } @@ -441,9 +442,9 @@ static void report_corrupt(unsigned char *read, unsigned char *written) &bits) >= 0) pages++; - printk(PRINT_PREF "verify fails on %d pages, %d bytes/%d bits\n", + pr_info("verify fails on %d pages, %d bytes/%d bits\n", pages, bytes, bits); - printk(PRINT_PREF "The following is a list of all differences between" + pr_info("The following is a list of all differences between" " what was read from flash and what was expected\n"); for (i = 0; i < check_len; i += pgsize) { @@ -457,7 +458,7 @@ static void report_corrupt(unsigned char *read, unsigned char *written) printk("-------------------------------------------------------" "----------------------------------\n"); - printk(PRINT_PREF "Page %zd has %d bytes/%d bits failing verify," + pr_info("Page %zd has %d bytes/%d bits failing verify," " starting at offset 0x%x\n", (mtd->erasesize - check_len + i) / pgsize, bytes, bits, first); From 04810274a982009ab26e2f15c32149c184e9e8e5 Mon Sep 17 00:00:00 2001 From: Vikram Narayanan Date: Wed, 10 Oct 2012 23:12:02 +0530 Subject: [PATCH 26/96] mtd: mtd_oobtest: printk -> pr_{info,err,crit} Use pr_info() and pr_err() while defining pr_fmt(). This saves a few characters, joins a few lines, and makes the code a little more readable (and grep-able). Signed-off-by: Brian Norris Signed-off-by: Vikram Narayanan Signed-off-by: Artem Bityutskiy --- drivers/mtd/tests/mtd_oobtest.c | 171 ++++++++++++++++---------------- 1 file changed, 84 insertions(+), 87 deletions(-) diff --git a/drivers/mtd/tests/mtd_oobtest.c b/drivers/mtd/tests/mtd_oobtest.c index ed9b62827f1..e86bb29419a 100644 --- a/drivers/mtd/tests/mtd_oobtest.c +++ b/drivers/mtd/tests/mtd_oobtest.c @@ -19,6 +19,8 @@ * Author: Adrian Hunter */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include #include #include @@ -28,8 +30,6 @@ #include #include -#define PRINT_PREF KERN_INFO "mtd_oobtest: " - static int dev = -EINVAL; module_param(dev, int, S_IRUGO); MODULE_PARM_DESC(dev, "MTD device number to use"); @@ -80,13 +80,12 @@ static int erase_eraseblock(int ebnum) err = mtd_erase(mtd, &ei); if (err) { - printk(PRINT_PREF "error %d while erasing EB %d\n", err, ebnum); + pr_err("error %d while erasing EB %d\n", err, ebnum); return err; } if (ei.state == MTD_ERASE_FAILED) { - printk(PRINT_PREF "some erase error occurred at EB %d\n", - ebnum); + pr_err("some erase error occurred at EB %d\n", ebnum); return -EIO; } @@ -98,7 +97,7 @@ static int erase_whole_device(void) int err; unsigned int i; - printk(PRINT_PREF "erasing whole device\n"); + pr_info("erasing whole device\n"); for (i = 0; i < ebcnt; ++i) { if (bbt[i]) continue; @@ -107,7 +106,7 @@ static int erase_whole_device(void) return err; cond_resched(); } - printk(PRINT_PREF "erased %u eraseblocks\n", i); + pr_info("erased %u eraseblocks\n", i); return 0; } @@ -141,9 +140,9 @@ static int write_eraseblock(int ebnum) ops.oobbuf = writebuf; err = mtd_write_oob(mtd, addr, &ops); if (err || ops.oobretlen != use_len) { - printk(PRINT_PREF "error: writeoob failed at %#llx\n", + pr_err("error: writeoob failed at %#llx\n", (long long)addr); - printk(PRINT_PREF "error: use_len %d, use_offset %d\n", + pr_err("error: use_len %d, use_offset %d\n", use_len, use_offset); errcnt += 1; return err ? err : -1; @@ -160,7 +159,7 @@ static int write_whole_device(void) int err; unsigned int i; - printk(PRINT_PREF "writing OOBs of whole device\n"); + pr_info("writing OOBs of whole device\n"); for (i = 0; i < ebcnt; ++i) { if (bbt[i]) continue; @@ -168,10 +167,10 @@ static int write_whole_device(void) if (err) return err; if (i % 256 == 0) - printk(PRINT_PREF "written up to eraseblock %u\n", i); + pr_info("written up to eraseblock %u\n", i); cond_resched(); } - printk(PRINT_PREF "written %u eraseblocks\n", i); + pr_info("written %u eraseblocks\n", i); return 0; } @@ -194,17 +193,17 @@ static int verify_eraseblock(int ebnum) ops.oobbuf = readbuf; err = mtd_read_oob(mtd, addr, &ops); if (err || ops.oobretlen != use_len) { - printk(PRINT_PREF "error: readoob failed at %#llx\n", + pr_err("error: readoob failed at %#llx\n", (long long)addr); errcnt += 1; return err ? err : -1; } if (memcmp(readbuf, writebuf, use_len)) { - printk(PRINT_PREF "error: verify failed at %#llx\n", + pr_err("error: verify failed at %#llx\n", (long long)addr); errcnt += 1; if (errcnt > 1000) { - printk(PRINT_PREF "error: too many errors\n"); + pr_err("error: too many errors\n"); return -1; } } @@ -221,29 +220,28 @@ static int verify_eraseblock(int ebnum) ops.oobbuf = readbuf; err = mtd_read_oob(mtd, addr, &ops); if (err || ops.oobretlen != mtd->ecclayout->oobavail) { - printk(PRINT_PREF "error: readoob failed at " - "%#llx\n", (long long)addr); + pr_err("error: readoob failed at %#llx\n", + (long long)addr); errcnt += 1; return err ? err : -1; } if (memcmp(readbuf + use_offset, writebuf, use_len)) { - printk(PRINT_PREF "error: verify failed at " - "%#llx\n", (long long)addr); + pr_err("error: verify failed at %#llx\n", + (long long)addr); errcnt += 1; if (errcnt > 1000) { - printk(PRINT_PREF "error: too many " - "errors\n"); + pr_err("error: too many errors\n"); return -1; } } for (k = 0; k < use_offset; ++k) if (readbuf[k] != 0xff) { - printk(PRINT_PREF "error: verify 0xff " + pr_err("error: verify 0xff " "failed at %#llx\n", (long long)addr); errcnt += 1; if (errcnt > 1000) { - printk(PRINT_PREF "error: too " + pr_err("error: too " "many errors\n"); return -1; } @@ -251,12 +249,12 @@ static int verify_eraseblock(int ebnum) for (k = use_offset + use_len; k < mtd->ecclayout->oobavail; ++k) if (readbuf[k] != 0xff) { - printk(PRINT_PREF "error: verify 0xff " + pr_err("error: verify 0xff " "failed at %#llx\n", (long long)addr); errcnt += 1; if (errcnt > 1000) { - printk(PRINT_PREF "error: too " + pr_err("error: too " "many errors\n"); return -1; } @@ -286,17 +284,17 @@ static int verify_eraseblock_in_one_go(int ebnum) ops.oobbuf = readbuf; err = mtd_read_oob(mtd, addr, &ops); if (err || ops.oobretlen != len) { - printk(PRINT_PREF "error: readoob failed at %#llx\n", + pr_err("error: readoob failed at %#llx\n", (long long)addr); errcnt += 1; return err ? err : -1; } if (memcmp(readbuf, writebuf, len)) { - printk(PRINT_PREF "error: verify failed at %#llx\n", + pr_err("error: verify failed at %#llx\n", (long long)addr); errcnt += 1; if (errcnt > 1000) { - printk(PRINT_PREF "error: too many errors\n"); + pr_err("error: too many errors\n"); return -1; } } @@ -309,7 +307,7 @@ static int verify_all_eraseblocks(void) int err; unsigned int i; - printk(PRINT_PREF "verifying all eraseblocks\n"); + pr_info("verifying all eraseblocks\n"); for (i = 0; i < ebcnt; ++i) { if (bbt[i]) continue; @@ -317,10 +315,10 @@ static int verify_all_eraseblocks(void) if (err) return err; if (i % 256 == 0) - printk(PRINT_PREF "verified up to eraseblock %u\n", i); + pr_info("verified up to eraseblock %u\n", i); cond_resched(); } - printk(PRINT_PREF "verified %u eraseblocks\n", i); + pr_info("verified %u eraseblocks\n", i); return 0; } @@ -331,7 +329,7 @@ static int is_block_bad(int ebnum) ret = mtd_block_isbad(mtd, addr); if (ret) - printk(PRINT_PREF "block %d is bad\n", ebnum); + pr_info("block %d is bad\n", ebnum); return ret; } @@ -341,18 +339,18 @@ static int scan_for_bad_eraseblocks(void) bbt = kmalloc(ebcnt, GFP_KERNEL); if (!bbt) { - printk(PRINT_PREF "error: cannot allocate memory\n"); + pr_err("error: cannot allocate memory\n"); return -ENOMEM; } - printk(PRINT_PREF "scanning for bad eraseblocks\n"); + pr_info("scanning for bad eraseblocks\n"); for (i = 0; i < ebcnt; ++i) { bbt[i] = is_block_bad(i) ? 1 : 0; if (bbt[i]) bad += 1; cond_resched(); } - printk(PRINT_PREF "scanned %d eraseblocks, %d are bad\n", i, bad); + pr_info("scanned %d eraseblocks, %d are bad\n", i, bad); return 0; } @@ -368,22 +366,22 @@ static int __init mtd_oobtest_init(void) printk(KERN_INFO "=================================================\n"); if (dev < 0) { - printk(PRINT_PREF "Please specify a valid mtd-device via module paramter\n"); - printk(KERN_CRIT "CAREFUL: This test wipes all data on the specified MTD device!\n"); + pr_info("Please specify a valid mtd-device via module paramter\n"); + pr_crit(KERN_CRIT "CAREFUL: This test wipes all data on the specified MTD device!\n"); return -EINVAL; } - printk(PRINT_PREF "MTD device: %d\n", dev); + pr_info("MTD device: %d\n", dev); mtd = get_mtd_device(NULL, dev); if (IS_ERR(mtd)) { err = PTR_ERR(mtd); - printk(PRINT_PREF "error: cannot get MTD device\n"); + pr_err("error: cannot get MTD device\n"); return err; } if (mtd->type != MTD_NANDFLASH) { - printk(PRINT_PREF "this test requires NAND flash\n"); + pr_info("this test requires NAND flash\n"); goto out; } @@ -392,7 +390,7 @@ static int __init mtd_oobtest_init(void) ebcnt = tmp; pgcnt = mtd->erasesize / mtd->writesize; - printk(PRINT_PREF "MTD device size %llu, eraseblock size %u, " + pr_info("MTD device size %llu, eraseblock size %u, " "page size %u, count of eraseblocks %u, pages per " "eraseblock %u, OOB size %u\n", (unsigned long long)mtd->size, mtd->erasesize, @@ -401,12 +399,12 @@ static int __init mtd_oobtest_init(void) err = -ENOMEM; readbuf = kmalloc(mtd->erasesize, GFP_KERNEL); if (!readbuf) { - printk(PRINT_PREF "error: cannot allocate memory\n"); + pr_err("error: cannot allocate memory\n"); goto out; } writebuf = kmalloc(mtd->erasesize, GFP_KERNEL); if (!writebuf) { - printk(PRINT_PREF "error: cannot allocate memory\n"); + pr_err("error: cannot allocate memory\n"); goto out; } @@ -420,7 +418,7 @@ static int __init mtd_oobtest_init(void) vary_offset = 0; /* First test: write all OOB, read it back and verify */ - printk(PRINT_PREF "test 1 of 5\n"); + pr_info("test 1 of 5\n"); err = erase_whole_device(); if (err) @@ -440,7 +438,7 @@ static int __init mtd_oobtest_init(void) * Second test: write all OOB, a block at a time, read it back and * verify. */ - printk(PRINT_PREF "test 2 of 5\n"); + pr_info("test 2 of 5\n"); err = erase_whole_device(); if (err) @@ -453,7 +451,7 @@ static int __init mtd_oobtest_init(void) /* Check all eraseblocks */ simple_srand(3); - printk(PRINT_PREF "verifying all eraseblocks\n"); + pr_info("verifying all eraseblocks\n"); for (i = 0; i < ebcnt; ++i) { if (bbt[i]) continue; @@ -461,16 +459,16 @@ static int __init mtd_oobtest_init(void) if (err) goto out; if (i % 256 == 0) - printk(PRINT_PREF "verified up to eraseblock %u\n", i); + pr_info("verified up to eraseblock %u\n", i); cond_resched(); } - printk(PRINT_PREF "verified %u eraseblocks\n", i); + pr_info("verified %u eraseblocks\n", i); /* * Third test: write OOB at varying offsets and lengths, read it back * and verify. */ - printk(PRINT_PREF "test 3 of 5\n"); + pr_info("test 3 of 5\n"); err = erase_whole_device(); if (err) @@ -503,7 +501,7 @@ static int __init mtd_oobtest_init(void) vary_offset = 0; /* Fourth test: try to write off end of device */ - printk(PRINT_PREF "test 4 of 5\n"); + pr_info("test 4 of 5\n"); err = erase_whole_device(); if (err) @@ -522,14 +520,14 @@ static int __init mtd_oobtest_init(void) ops.ooboffs = mtd->ecclayout->oobavail; ops.datbuf = NULL; ops.oobbuf = writebuf; - printk(PRINT_PREF "attempting to start write past end of OOB\n"); - printk(PRINT_PREF "an error is expected...\n"); + pr_info("attempting to start write past end of OOB\n"); + pr_info("an error is expected...\n"); err = mtd_write_oob(mtd, addr0, &ops); if (err) { - printk(PRINT_PREF "error occurred as expected\n"); + pr_info("error occurred as expected\n"); err = 0; } else { - printk(PRINT_PREF "error: can write past end of OOB\n"); + pr_err("error: can write past end of OOB\n"); errcnt += 1; } @@ -542,19 +540,19 @@ static int __init mtd_oobtest_init(void) ops.ooboffs = mtd->ecclayout->oobavail; ops.datbuf = NULL; ops.oobbuf = readbuf; - printk(PRINT_PREF "attempting to start read past end of OOB\n"); - printk(PRINT_PREF "an error is expected...\n"); + pr_info("attempting to start read past end of OOB\n"); + pr_info("an error is expected...\n"); err = mtd_read_oob(mtd, addr0, &ops); if (err) { - printk(PRINT_PREF "error occurred as expected\n"); + pr_info("error occurred as expected\n"); err = 0; } else { - printk(PRINT_PREF "error: can read past end of OOB\n"); + pr_err("error: can read past end of OOB\n"); errcnt += 1; } if (bbt[ebcnt - 1]) - printk(PRINT_PREF "skipping end of device tests because last " + pr_info("skipping end of device tests because last " "block is bad\n"); else { /* Attempt to write off end of device */ @@ -566,14 +564,14 @@ static int __init mtd_oobtest_init(void) ops.ooboffs = 0; ops.datbuf = NULL; ops.oobbuf = writebuf; - printk(PRINT_PREF "attempting to write past end of device\n"); - printk(PRINT_PREF "an error is expected...\n"); + pr_info("attempting to write past end of device\n"); + pr_info("an error is expected...\n"); err = mtd_write_oob(mtd, mtd->size - mtd->writesize, &ops); if (err) { - printk(PRINT_PREF "error occurred as expected\n"); + pr_info("error occurred as expected\n"); err = 0; } else { - printk(PRINT_PREF "error: wrote past end of device\n"); + pr_err("error: wrote past end of device\n"); errcnt += 1; } @@ -586,14 +584,14 @@ static int __init mtd_oobtest_init(void) ops.ooboffs = 0; ops.datbuf = NULL; ops.oobbuf = readbuf; - printk(PRINT_PREF "attempting to read past end of device\n"); - printk(PRINT_PREF "an error is expected...\n"); + pr_info("attempting to read past end of device\n"); + pr_info("an error is expected...\n"); err = mtd_read_oob(mtd, mtd->size - mtd->writesize, &ops); if (err) { - printk(PRINT_PREF "error occurred as expected\n"); + pr_info("error occurred as expected\n"); err = 0; } else { - printk(PRINT_PREF "error: read past end of device\n"); + pr_err("error: read past end of device\n"); errcnt += 1; } @@ -610,14 +608,14 @@ static int __init mtd_oobtest_init(void) ops.ooboffs = 1; ops.datbuf = NULL; ops.oobbuf = writebuf; - printk(PRINT_PREF "attempting to write past end of device\n"); - printk(PRINT_PREF "an error is expected...\n"); + pr_info("attempting to write past end of device\n"); + pr_info("an error is expected...\n"); err = mtd_write_oob(mtd, mtd->size - mtd->writesize, &ops); if (err) { - printk(PRINT_PREF "error occurred as expected\n"); + pr_info("error occurred as expected\n"); err = 0; } else { - printk(PRINT_PREF "error: wrote past end of device\n"); + pr_err("error: wrote past end of device\n"); errcnt += 1; } @@ -630,20 +628,20 @@ static int __init mtd_oobtest_init(void) ops.ooboffs = 1; ops.datbuf = NULL; ops.oobbuf = readbuf; - printk(PRINT_PREF "attempting to read past end of device\n"); - printk(PRINT_PREF "an error is expected...\n"); + pr_info("attempting to read past end of device\n"); + pr_info("an error is expected...\n"); err = mtd_read_oob(mtd, mtd->size - mtd->writesize, &ops); if (err) { - printk(PRINT_PREF "error occurred as expected\n"); + pr_info("error occurred as expected\n"); err = 0; } else { - printk(PRINT_PREF "error: read past end of device\n"); + pr_err("error: read past end of device\n"); errcnt += 1; } } /* Fifth test: write / read across block boundaries */ - printk(PRINT_PREF "test 5 of 5\n"); + pr_info("test 5 of 5\n"); /* Erase all eraseblocks */ err = erase_whole_device(); @@ -652,7 +650,7 @@ static int __init mtd_oobtest_init(void) /* Write all eraseblocks */ simple_srand(11); - printk(PRINT_PREF "writing OOBs of whole device\n"); + pr_info("writing OOBs of whole device\n"); for (i = 0; i < ebcnt - 1; ++i) { int cnt = 2; int pg; @@ -674,17 +672,16 @@ static int __init mtd_oobtest_init(void) if (err) goto out; if (i % 256 == 0) - printk(PRINT_PREF "written up to eraseblock " - "%u\n", i); + pr_info("written up to eraseblock %u\n", i); cond_resched(); addr += mtd->writesize; } } - printk(PRINT_PREF "written %u eraseblocks\n", i); + pr_info("written %u eraseblocks\n", i); /* Check all eraseblocks */ simple_srand(11); - printk(PRINT_PREF "verifying all eraseblocks\n"); + pr_info("verifying all eraseblocks\n"); for (i = 0; i < ebcnt - 1; ++i) { if (bbt[i] || bbt[i + 1]) continue; @@ -702,28 +699,28 @@ static int __init mtd_oobtest_init(void) if (err) goto out; if (memcmp(readbuf, writebuf, mtd->ecclayout->oobavail * 2)) { - printk(PRINT_PREF "error: verify failed at %#llx\n", + pr_err("error: verify failed at %#llx\n", (long long)addr); errcnt += 1; if (errcnt > 1000) { - printk(PRINT_PREF "error: too many errors\n"); + pr_err("error: too many errors\n"); goto out; } } if (i % 256 == 0) - printk(PRINT_PREF "verified up to eraseblock %u\n", i); + pr_info("verified up to eraseblock %u\n", i); cond_resched(); } - printk(PRINT_PREF "verified %u eraseblocks\n", i); + pr_info("verified %u eraseblocks\n", i); - printk(PRINT_PREF "finished with %d errors\n", errcnt); + pr_info("finished with %d errors\n", errcnt); out: kfree(bbt); kfree(writebuf); kfree(readbuf); put_mtd_device(mtd); if (err) - printk(PRINT_PREF "error %d occurred\n", err); + pr_info("error %d occurred\n", err); printk(KERN_INFO "=================================================\n"); return err; } From 7483096665161d2567c2717e001654ad653d944e Mon Sep 17 00:00:00 2001 From: Huang Shijie Date: Sun, 14 Oct 2012 23:47:24 -0400 Subject: [PATCH 27/96] mtd: use the NAND_STATUS_FAIL to replace the hardcode Use the NAND_STATUS_FAIL to replace the hardcode "0x01", which make the code more readable. Signed-off-by: Huang Shijie Acked-by: Brian Norris Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/nand_base.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c index 1a03b7f673c..1d5c951ebcb 100644 --- a/drivers/mtd/nand/nand_base.c +++ b/drivers/mtd/nand/nand_base.c @@ -899,7 +899,7 @@ static int __nand_unlock(struct mtd_info *mtd, loff_t ofs, /* Call wait ready function */ status = chip->waitfunc(mtd, chip); /* See if device thinks it succeeded */ - if (status & 0x01) { + if (status & NAND_STATUS_FAIL) { pr_debug("%s: error status = 0x%08x\n", __func__, status); ret = -EIO; @@ -1004,7 +1004,7 @@ int nand_lock(struct mtd_info *mtd, loff_t ofs, uint64_t len) /* Call wait ready function */ status = chip->waitfunc(mtd, chip); /* See if device thinks it succeeded */ - if (status & 0x01) { + if (status & NAND_STATUS_FAIL) { pr_debug("%s: error status = 0x%08x\n", __func__, status); ret = -EIO; From 18afbc54c4944b6c93f3888d97db0d1257a4b5e9 Mon Sep 17 00:00:00 2001 From: Alexander Shiyan Date: Wed, 17 Oct 2012 10:08:27 +0400 Subject: [PATCH 28/96] mtd: gpio-nand: Ability to use driver for configurations without RDY-pin In some configurations of "gpio-nand" RDY-pin may be not connected. This patch allow to use driver for these configurations. In this case we are assume that device always ready. Signed-off-by: Alexander Shiyan Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/gpio.c | 22 +++++++++++++++------- 1 file changed, 15 insertions(+), 7 deletions(-) diff --git a/drivers/mtd/nand/gpio.c b/drivers/mtd/nand/gpio.c index bc73bc5f271..0b3c815ef80 100644 --- a/drivers/mtd/nand/gpio.c +++ b/drivers/mtd/nand/gpio.c @@ -134,7 +134,11 @@ static void gpio_nand_readbuf16(struct mtd_info *mtd, u_char *buf, int len) static int gpio_nand_devready(struct mtd_info *mtd) { struct gpiomtd *gpiomtd = gpio_nand_getpriv(mtd); - return gpio_get_value(gpiomtd->plat.gpio_rdy); + + if (gpio_is_valid(gpiomtd->plat.gpio_rdy)) + return gpio_get_value(gpiomtd->plat.gpio_rdy); + + return 1; } #ifdef CONFIG_OF @@ -252,7 +256,8 @@ static int __devexit gpio_nand_remove(struct platform_device *dev) gpio_free(gpiomtd->plat.gpio_nce); if (gpio_is_valid(gpiomtd->plat.gpio_nwp)) gpio_free(gpiomtd->plat.gpio_nwp); - gpio_free(gpiomtd->plat.gpio_rdy); + if (gpio_is_valid(gpiomtd->plat.gpio_rdy)) + gpio_free(gpiomtd->plat.gpio_rdy); kfree(gpiomtd); @@ -336,10 +341,12 @@ static int __devinit gpio_nand_probe(struct platform_device *dev) if (ret) goto err_cle; gpio_direction_output(gpiomtd->plat.gpio_cle, 0); - ret = gpio_request(gpiomtd->plat.gpio_rdy, "NAND RDY"); - if (ret) - goto err_rdy; - gpio_direction_input(gpiomtd->plat.gpio_rdy); + if (gpio_is_valid(gpiomtd->plat.gpio_rdy)) { + ret = gpio_request(gpiomtd->plat.gpio_rdy, "NAND RDY"); + if (ret) + goto err_rdy; + gpio_direction_input(gpiomtd->plat.gpio_rdy); + } this->IO_ADDR_W = this->IO_ADDR_R; @@ -386,7 +393,8 @@ static int __devinit gpio_nand_probe(struct platform_device *dev) err_wp: if (gpio_is_valid(gpiomtd->plat.gpio_nwp)) gpio_set_value(gpiomtd->plat.gpio_nwp, 0); - gpio_free(gpiomtd->plat.gpio_rdy); + if (gpio_is_valid(gpiomtd->plat.gpio_rdy)) + gpio_free(gpiomtd->plat.gpio_rdy); err_rdy: gpio_free(gpiomtd->plat.gpio_cle); err_cle: From 5de0b52ea8f8f5149502867acff2efb5efaf1fc2 Mon Sep 17 00:00:00 2001 From: Huang Shijie Date: Sat, 13 Oct 2012 13:03:29 -0400 Subject: [PATCH 29/96] mtd: gpmi: remove unneccessary header The whole gpmi-nand driver has turned to pure devicetree supported. So the linux/mtd/gpmi-nand.h is not neccessary now. Just remove it, and move some macros to the gpmi-nand driver itself. Signed-off-by: Huang Shijie Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/gpmi-nand/gpmi-lib.c | 1 - drivers/mtd/nand/gpmi-nand/gpmi-nand.c | 7 ++- drivers/mtd/nand/gpmi-nand/gpmi-nand.h | 1 - include/linux/mtd/gpmi-nand.h | 68 -------------------------- 4 files changed, 6 insertions(+), 71 deletions(-) delete mode 100644 include/linux/mtd/gpmi-nand.h diff --git a/drivers/mtd/nand/gpmi-nand/gpmi-lib.c b/drivers/mtd/nand/gpmi-nand/gpmi-lib.c index 3502accd4bc..1585c5b1c8b 100644 --- a/drivers/mtd/nand/gpmi-nand/gpmi-lib.c +++ b/drivers/mtd/nand/gpmi-nand/gpmi-lib.c @@ -18,7 +18,6 @@ * with this program; if not, write to the Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ -#include #include #include diff --git a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c index e2c56fc4574..d37619882fa 100644 --- a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c +++ b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c @@ -25,7 +25,6 @@ #include #include #include -#include #include #include #include @@ -33,6 +32,12 @@ #include #include "gpmi-nand.h" +/* Resource names for the GPMI NAND driver. */ +#define GPMI_NAND_GPMI_REGS_ADDR_RES_NAME "gpmi-nand" +#define GPMI_NAND_BCH_REGS_ADDR_RES_NAME "bch" +#define GPMI_NAND_BCH_INTERRUPT_RES_NAME "bch" +#define GPMI_NAND_DMA_INTERRUPT_RES_NAME "gpmi-dma" + /* add our owner bbt descriptor */ static uint8_t scan_ff_pattern[] = { 0xff }; static struct nand_bbt_descr gpmi_bbt_descr = { diff --git a/drivers/mtd/nand/gpmi-nand/gpmi-nand.h b/drivers/mtd/nand/gpmi-nand/gpmi-nand.h index 7ac25c1e58f..3d93a5e3909 100644 --- a/drivers/mtd/nand/gpmi-nand/gpmi-nand.h +++ b/drivers/mtd/nand/gpmi-nand/gpmi-nand.h @@ -130,7 +130,6 @@ struct gpmi_nand_data { /* System Interface */ struct device *dev; struct platform_device *pdev; - struct gpmi_nand_platform_data *pdata; /* Resources */ struct resources resources; diff --git a/include/linux/mtd/gpmi-nand.h b/include/linux/mtd/gpmi-nand.h deleted file mode 100644 index ed3c4e09f3d..00000000000 --- a/include/linux/mtd/gpmi-nand.h +++ /dev/null @@ -1,68 +0,0 @@ -/* - * Copyright (C) 2011 Freescale Semiconductor, Inc. All Rights Reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. - */ - -#ifndef __MACH_MXS_GPMI_NAND_H__ -#define __MACH_MXS_GPMI_NAND_H__ - -/* The size of the resources is fixed. */ -#define GPMI_NAND_RES_SIZE 6 - -/* Resource names for the GPMI NAND driver. */ -#define GPMI_NAND_GPMI_REGS_ADDR_RES_NAME "gpmi-nand" -#define GPMI_NAND_GPMI_INTERRUPT_RES_NAME "GPMI NAND GPMI Interrupt" -#define GPMI_NAND_BCH_REGS_ADDR_RES_NAME "bch" -#define GPMI_NAND_BCH_INTERRUPT_RES_NAME "bch" -#define GPMI_NAND_DMA_CHANNELS_RES_NAME "GPMI NAND DMA Channels" -#define GPMI_NAND_DMA_INTERRUPT_RES_NAME "gpmi-dma" - -/** - * struct gpmi_nand_platform_data - GPMI NAND driver platform data. - * - * This structure communicates platform-specific information to the GPMI NAND - * driver that can't be expressed as resources. - * - * @platform_init: A pointer to a function the driver will call to - * initialize the platform (e.g., set up the pin mux). - * @min_prop_delay_in_ns: Minimum propagation delay of GPMI signals to and - * from the NAND Flash device, in nanoseconds. - * @max_prop_delay_in_ns: Maximum propagation delay of GPMI signals to and - * from the NAND Flash device, in nanoseconds. - * @max_chip_count: The maximum number of chips for which the driver - * should configure the hardware. This value most - * likely reflects the number of pins that are - * connected to a NAND Flash device. If this is - * greater than the SoC hardware can support, the - * driver will print a message and fail to initialize. - * @partitions: An optional pointer to an array of partition - * descriptions. - * @partition_count: The number of elements in the partitions array. - */ -struct gpmi_nand_platform_data { - /* SoC hardware information. */ - int (*platform_init)(void); - - /* NAND Flash information. */ - unsigned int min_prop_delay_in_ns; - unsigned int max_prop_delay_in_ns; - unsigned int max_chip_count; - - /* Medium information. */ - struct mtd_partition *partitions; - unsigned partition_count; -}; -#endif From e8a9d8f31c592eea89f1b0d3fd425e7a96944e88 Mon Sep 17 00:00:00 2001 From: Bastian Hecht Date: Fri, 19 Oct 2012 12:15:34 +0200 Subject: [PATCH 30/96] mtd: sh_flctl: Minor cleanups Some small fixes to avoid sparse and smatch complain. Other cosmetic fixes as well. - Change of the type of the member index in struct sh_flctl from signed to unsigned. We use index by addressing array members, so unsigned is more concise here. Adapt functions relying on sh_flctl::index. - Remove a blurring cast in write_fiforeg(). - Apply consistent naming scheme when refering to the data buffer. - Shorten some unnecessarily verbose functions. - Remove spaces at start of lines. Signed-off-by: Bastian Hecht Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/sh_flctl.c | 37 ++++++++++++++++-------------------- include/linux/mtd/sh_flctl.h | 2 +- 2 files changed, 17 insertions(+), 22 deletions(-) diff --git a/drivers/mtd/nand/sh_flctl.c b/drivers/mtd/nand/sh_flctl.c index 4fbfe96e37a..78d18c0f132 100644 --- a/drivers/mtd/nand/sh_flctl.c +++ b/drivers/mtd/nand/sh_flctl.c @@ -225,7 +225,7 @@ static enum flctl_ecc_res_t wait_recfifo_ready for (i = 0; i < 3; i++) { uint8_t org; - int index; + unsigned int index; data = readl(ecc_reg[i]); @@ -305,28 +305,29 @@ static enum flctl_ecc_res_t read_ecfiforeg return res; } -static void write_fiforeg(struct sh_flctl *flctl, int rlen, int offset) +static void write_fiforeg(struct sh_flctl *flctl, int rlen, + unsigned int offset) { int i, len_4align; - unsigned long *data = (unsigned long *)&flctl->done_buff[offset]; - void *fifo_addr = (void *)FLDTFIFO(flctl); + unsigned long *buf = (unsigned long *)&flctl->done_buff[offset]; len_4align = (rlen + 3) / 4; for (i = 0; i < len_4align; i++) { wait_wfifo_ready(flctl); - writel(cpu_to_be32(data[i]), fifo_addr); + writel(cpu_to_be32(buf[i]), FLDTFIFO(flctl)); } } -static void write_ec_fiforeg(struct sh_flctl *flctl, int rlen, int offset) +static void write_ec_fiforeg(struct sh_flctl *flctl, int rlen, + unsigned int offset) { int i, len_4align; - unsigned long *data = (unsigned long *)&flctl->done_buff[offset]; + unsigned long *buf = (unsigned long *)&flctl->done_buff[offset]; len_4align = (rlen + 3) / 4; for (i = 0; i < len_4align; i++) { wait_wecfifo_ready(flctl); - writel(cpu_to_be32(data[i]), FLECFIFO(flctl)); + writel(cpu_to_be32(buf[i]), FLECFIFO(flctl)); } } @@ -748,41 +749,35 @@ static void flctl_select_chip(struct mtd_info *mtd, int chipnr) static void flctl_write_buf(struct mtd_info *mtd, const uint8_t *buf, int len) { struct sh_flctl *flctl = mtd_to_flctl(mtd); - int index = flctl->index; - memcpy(&flctl->done_buff[index], buf, len); + memcpy(&flctl->done_buff[flctl->index], buf, len); flctl->index += len; } static uint8_t flctl_read_byte(struct mtd_info *mtd) { struct sh_flctl *flctl = mtd_to_flctl(mtd); - int index = flctl->index; uint8_t data; - data = flctl->done_buff[index]; + data = flctl->done_buff[flctl->index]; flctl->index++; return data; } static uint16_t flctl_read_word(struct mtd_info *mtd) { - struct sh_flctl *flctl = mtd_to_flctl(mtd); - int index = flctl->index; - uint16_t data; - uint16_t *buf = (uint16_t *)&flctl->done_buff[index]; + struct sh_flctl *flctl = mtd_to_flctl(mtd); + uint16_t *buf = (uint16_t *)&flctl->done_buff[flctl->index]; - data = *buf; - flctl->index += 2; - return data; + flctl->index += 2; + return *buf; } static void flctl_read_buf(struct mtd_info *mtd, uint8_t *buf, int len) { struct sh_flctl *flctl = mtd_to_flctl(mtd); - int index = flctl->index; - memcpy(buf, &flctl->done_buff[index], len); + memcpy(buf, &flctl->done_buff[flctl->index], len); flctl->index += len; } diff --git a/include/linux/mtd/sh_flctl.h b/include/linux/mtd/sh_flctl.h index 01e4b15b280..481557688d0 100644 --- a/include/linux/mtd/sh_flctl.h +++ b/include/linux/mtd/sh_flctl.h @@ -147,7 +147,7 @@ struct sh_flctl { uint8_t done_buff[2048 + 64]; /* max size 2048 + 64 */ int read_bytes; - int index; + unsigned int index; int seqin_column; /* column in SEQIN cmd */ int seqin_page_addr; /* page_addr in SEQIN cmd */ uint32_t seqin_read_cmd; /* read cmd in SEQIN cmd */ From 83738d87e3a0a4096e1419a65b8228130d183df6 Mon Sep 17 00:00:00 2001 From: Bastian Hecht Date: Fri, 19 Oct 2012 12:15:35 +0200 Subject: [PATCH 31/96] mtd: sh_flctl: Add DMA capabilty The code probes if DMA channels can get allocated and tears them down at removal/failure if needed. If available it uses them to transfer the data part (not ECC). On failure we fall back to PIO mode. Based on Guennadi Liakhovetski's code from the sh_mmcif driver. Signed-off-by: Bastian Hecht Reviewed-by: Guennadi Liakhovetski Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/sh_flctl.c | 173 ++++++++++++++++++++++++++++++++++- include/linux/mtd/sh_flctl.h | 12 +++ 2 files changed, 183 insertions(+), 2 deletions(-) diff --git a/drivers/mtd/nand/sh_flctl.c b/drivers/mtd/nand/sh_flctl.c index 78d18c0f132..6dc0369aa44 100644 --- a/drivers/mtd/nand/sh_flctl.c +++ b/drivers/mtd/nand/sh_flctl.c @@ -23,11 +23,15 @@ #include #include +#include #include +#include +#include #include #include #include #include +#include #include #include @@ -106,6 +110,84 @@ static void wait_completion(struct sh_flctl *flctl) writeb(0x0, FLTRCR(flctl)); } +static void flctl_dma_complete(void *param) +{ + struct sh_flctl *flctl = param; + + complete(&flctl->dma_complete); +} + +static void flctl_release_dma(struct sh_flctl *flctl) +{ + if (flctl->chan_fifo0_rx) { + dma_release_channel(flctl->chan_fifo0_rx); + flctl->chan_fifo0_rx = NULL; + } + if (flctl->chan_fifo0_tx) { + dma_release_channel(flctl->chan_fifo0_tx); + flctl->chan_fifo0_tx = NULL; + } +} + +static void flctl_setup_dma(struct sh_flctl *flctl) +{ + dma_cap_mask_t mask; + struct dma_slave_config cfg; + struct platform_device *pdev = flctl->pdev; + struct sh_flctl_platform_data *pdata = pdev->dev.platform_data; + int ret; + + if (!pdata) + return; + + if (pdata->slave_id_fifo0_tx <= 0 || pdata->slave_id_fifo0_rx <= 0) + return; + + /* We can only either use DMA for both Tx and Rx or not use it at all */ + dma_cap_zero(mask); + dma_cap_set(DMA_SLAVE, mask); + + flctl->chan_fifo0_tx = dma_request_channel(mask, shdma_chan_filter, + (void *)pdata->slave_id_fifo0_tx); + dev_dbg(&pdev->dev, "%s: TX: got channel %p\n", __func__, + flctl->chan_fifo0_tx); + + if (!flctl->chan_fifo0_tx) + return; + + memset(&cfg, 0, sizeof(cfg)); + cfg.slave_id = pdata->slave_id_fifo0_tx; + cfg.direction = DMA_MEM_TO_DEV; + cfg.dst_addr = (dma_addr_t)FLDTFIFO(flctl); + cfg.src_addr = 0; + ret = dmaengine_slave_config(flctl->chan_fifo0_tx, &cfg); + if (ret < 0) + goto err; + + flctl->chan_fifo0_rx = dma_request_channel(mask, shdma_chan_filter, + (void *)pdata->slave_id_fifo0_rx); + dev_dbg(&pdev->dev, "%s: RX: got channel %p\n", __func__, + flctl->chan_fifo0_rx); + + if (!flctl->chan_fifo0_rx) + goto err; + + cfg.slave_id = pdata->slave_id_fifo0_rx; + cfg.direction = DMA_DEV_TO_MEM; + cfg.dst_addr = 0; + cfg.src_addr = (dma_addr_t)FLDTFIFO(flctl); + ret = dmaengine_slave_config(flctl->chan_fifo0_rx, &cfg); + if (ret < 0) + goto err; + + init_completion(&flctl->dma_complete); + + return; + +err: + flctl_release_dma(flctl); +} + static void set_addr(struct mtd_info *mtd, int column, int page_addr) { struct sh_flctl *flctl = mtd_to_flctl(mtd); @@ -261,6 +343,70 @@ static void wait_wecfifo_ready(struct sh_flctl *flctl) timeout_error(flctl, __func__); } +static int flctl_dma_fifo0_transfer(struct sh_flctl *flctl, unsigned long *buf, + int len, enum dma_data_direction dir) +{ + struct dma_async_tx_descriptor *desc = NULL; + struct dma_chan *chan; + enum dma_transfer_direction tr_dir; + dma_addr_t dma_addr; + dma_cookie_t cookie = -EINVAL; + uint32_t reg; + int ret; + + if (dir == DMA_FROM_DEVICE) { + chan = flctl->chan_fifo0_rx; + tr_dir = DMA_DEV_TO_MEM; + } else { + chan = flctl->chan_fifo0_tx; + tr_dir = DMA_MEM_TO_DEV; + } + + dma_addr = dma_map_single(chan->device->dev, buf, len, dir); + + if (dma_addr) + desc = dmaengine_prep_slave_single(chan, dma_addr, len, + tr_dir, DMA_PREP_INTERRUPT | DMA_CTRL_ACK); + + if (desc) { + reg = readl(FLINTDMACR(flctl)); + reg |= DREQ0EN; + writel(reg, FLINTDMACR(flctl)); + + desc->callback = flctl_dma_complete; + desc->callback_param = flctl; + cookie = dmaengine_submit(desc); + + dma_async_issue_pending(chan); + } else { + /* DMA failed, fall back to PIO */ + flctl_release_dma(flctl); + dev_warn(&flctl->pdev->dev, + "DMA failed, falling back to PIO\n"); + ret = -EIO; + goto out; + } + + ret = + wait_for_completion_timeout(&flctl->dma_complete, + msecs_to_jiffies(3000)); + + if (ret <= 0) { + chan->device->device_control(chan, DMA_TERMINATE_ALL, 0); + dev_err(&flctl->pdev->dev, "wait_for_completion_timeout\n"); + } + +out: + reg = readl(FLINTDMACR(flctl)); + reg &= ~DREQ0EN; + writel(reg, FLINTDMACR(flctl)); + + dma_unmap_single(chan->device->dev, dma_addr, len, dir); + + /* ret > 0 is success */ + return ret; +} + static void read_datareg(struct sh_flctl *flctl, int offset) { unsigned long data; @@ -279,11 +425,20 @@ static void read_fiforeg(struct sh_flctl *flctl, int rlen, int offset) len_4align = (rlen + 3) / 4; + /* initiate DMA transfer */ + if (flctl->chan_fifo0_rx && rlen >= 32 && + flctl_dma_fifo0_transfer(flctl, buf, rlen, DMA_DEV_TO_MEM) > 0) + goto convert; /* DMA success */ + + /* do polling transfer */ for (i = 0; i < len_4align; i++) { wait_rfifo_ready(flctl); buf[i] = readl(FLDTFIFO(flctl)); - buf[i] = be32_to_cpu(buf[i]); } + +convert: + for (i = 0; i < len_4align; i++) + buf[i] = be32_to_cpu(buf[i]); } static enum flctl_ecc_res_t read_ecfiforeg @@ -325,9 +480,19 @@ static void write_ec_fiforeg(struct sh_flctl *flctl, int rlen, unsigned long *buf = (unsigned long *)&flctl->done_buff[offset]; len_4align = (rlen + 3) / 4; + + for (i = 0; i < len_4align; i++) + buf[i] = cpu_to_be32(buf[i]); + + /* initiate DMA transfer */ + if (flctl->chan_fifo0_tx && rlen >= 32 && + flctl_dma_fifo0_transfer(flctl, buf, rlen, DMA_MEM_TO_DEV) > 0) + return; /* DMA success */ + + /* do polling transfer */ for (i = 0; i < len_4align; i++) { wait_wecfifo_ready(flctl); - writel(cpu_to_be32(buf[i]), FLECFIFO(flctl)); + writel(buf[i], FLECFIFO(flctl)); } } @@ -925,6 +1090,8 @@ static int __devinit flctl_probe(struct platform_device *pdev) pm_runtime_enable(&pdev->dev); pm_runtime_resume(&pdev->dev); + flctl_setup_dma(flctl); + ret = nand_scan_ident(flctl_mtd, 1, NULL); if (ret) goto err_chip; @@ -942,6 +1109,7 @@ static int __devinit flctl_probe(struct platform_device *pdev) return 0; err_chip: + flctl_release_dma(flctl); pm_runtime_disable(&pdev->dev); free_irq(irq, flctl); err_flste: @@ -955,6 +1123,7 @@ static int __devexit flctl_remove(struct platform_device *pdev) { struct sh_flctl *flctl = platform_get_drvdata(pdev); + flctl_release_dma(flctl); nand_release(&flctl->mtd); pm_runtime_disable(&pdev->dev); free_irq(platform_get_irq(pdev, 0), flctl); diff --git a/include/linux/mtd/sh_flctl.h b/include/linux/mtd/sh_flctl.h index 481557688d0..1c28f8879b1 100644 --- a/include/linux/mtd/sh_flctl.h +++ b/include/linux/mtd/sh_flctl.h @@ -20,6 +20,7 @@ #ifndef __SH_FLCTL_H__ #define __SH_FLCTL_H__ +#include #include #include #include @@ -107,6 +108,7 @@ #define ESTERINTE (0x1 << 24) /* ECC error interrupt enable */ #define AC1CLR (0x1 << 19) /* ECC FIFO clear */ #define AC0CLR (0x1 << 18) /* Data FIFO clear */ +#define DREQ0EN (0x1 << 16) /* FLDTFIFODMA Request Enable */ #define ECERB (0x1 << 9) /* ECC error */ #define STERB (0x1 << 8) /* Status error */ #define STERINTE (0x1 << 4) /* Status error enable */ @@ -138,6 +140,8 @@ enum flctl_ecc_res_t { FL_TIMEOUT }; +struct dma_chan; + struct sh_flctl { struct mtd_info mtd; struct nand_chip chip; @@ -161,6 +165,11 @@ struct sh_flctl { unsigned hwecc:1; /* Hardware ECC (0 = disabled, 1 = enabled) */ unsigned holden:1; /* Hardware has FLHOLDCR and HOLDEN is set */ unsigned qos_request:1; /* QoS request to prevent deep power shutdown */ + + /* DMA related objects */ + struct dma_chan *chan_fifo0_rx; + struct dma_chan *chan_fifo0_tx; + struct completion dma_complete; }; struct sh_flctl_platform_data { @@ -170,6 +179,9 @@ struct sh_flctl_platform_data { unsigned has_hwecc:1; unsigned use_holden:1; + + unsigned int slave_id_fifo0_tx; + unsigned int slave_id_fifo0_rx; }; static inline struct sh_flctl *mtd_to_flctl(struct mtd_info *mtdinfo) From 7c8f680e96edbd9896b13b5e6ff39bc5852dce2a Mon Sep 17 00:00:00 2001 From: Bastian Hecht Date: Fri, 19 Oct 2012 12:15:36 +0200 Subject: [PATCH 32/96] mtd: sh_flctl: Add device tree support The flctl can now be probed via device tree setup in addition to the existing platform data way. SoC specific setup data is set in the .data member of the OF match, so kept within the driver itself, while board/user specific setup - like partitioning - is taken from the device tree. Actual configuration is added for the SoC sh7372. Signed-off-by: Bastian Hecht Signed-off-by: Artem Bityutskiy --- .../devicetree/bindings/mtd/flctl-nand.txt | 49 ++++++++++ drivers/mtd/nand/sh_flctl.c | 94 +++++++++++++++++-- 2 files changed, 136 insertions(+), 7 deletions(-) create mode 100644 Documentation/devicetree/bindings/mtd/flctl-nand.txt diff --git a/Documentation/devicetree/bindings/mtd/flctl-nand.txt b/Documentation/devicetree/bindings/mtd/flctl-nand.txt new file mode 100644 index 00000000000..427f46dc60a --- /dev/null +++ b/Documentation/devicetree/bindings/mtd/flctl-nand.txt @@ -0,0 +1,49 @@ +FLCTL NAND controller + +Required properties: +- compatible : "renesas,shmobile-flctl-sh7372" +- reg : Address range of the FLCTL +- interrupts : flste IRQ number +- nand-bus-width : bus width to NAND chip + +Optional properties: +- dmas: DMA specifier(s) +- dma-names: name for each DMA specifier. Valid names are + "data_tx", "data_rx", "ecc_tx", "ecc_rx" + +The DMA fields are not used yet in the driver but are listed here for +completing the bindings. + +The device tree may optionally contain sub-nodes describing partitions of the +address space. See partition.txt for more detail. + +Example: + + flctl@e6a30000 { + #address-cells = <1>; + #size-cells = <1>; + compatible = "renesas,shmobile-flctl-sh7372"; + reg = <0xe6a30000 0x100>; + interrupts = <0x0d80>; + + nand-bus-width = <16>; + + dmas = <&dmac 1 /* data_tx */ + &dmac 2;> /* data_rx */ + dma-names = "data_tx", "data_rx"; + + system@0 { + label = "system"; + reg = <0x0 0x8000000>; + }; + + userdata@8000000 { + label = "userdata"; + reg = <0x8000000 0x10000000>; + }; + + cache@18000000 { + label = "cache"; + reg = <0x18000000 0x8000000>; + }; + }; diff --git a/drivers/mtd/nand/sh_flctl.c b/drivers/mtd/nand/sh_flctl.c index 6dc0369aa44..d51e3c15d37 100644 --- a/drivers/mtd/nand/sh_flctl.c +++ b/drivers/mtd/nand/sh_flctl.c @@ -29,6 +29,9 @@ #include #include #include +#include +#include +#include #include #include #include @@ -1016,6 +1019,73 @@ static irqreturn_t flctl_handle_flste(int irq, void *dev_id) return IRQ_HANDLED; } +#ifdef CONFIG_OF +struct flctl_soc_config { + unsigned long flcmncr_val; + unsigned has_hwecc:1; + unsigned use_holden:1; +}; + +static struct flctl_soc_config flctl_sh7372_config = { + .flcmncr_val = CLK_16B_12L_4H | TYPESEL_SET | SHBUSSEL, + .has_hwecc = 1, + .use_holden = 1, +}; + +static const struct of_device_id of_flctl_match[] = { + { .compatible = "renesas,shmobile-flctl-sh7372", + .data = &flctl_sh7372_config }, + {}, +}; +MODULE_DEVICE_TABLE(of, of_flctl_match); + +static struct sh_flctl_platform_data *flctl_parse_dt(struct device *dev) +{ + const struct of_device_id *match; + struct flctl_soc_config *config; + struct sh_flctl_platform_data *pdata; + struct device_node *dn = dev->of_node; + int ret; + + match = of_match_device(of_flctl_match, dev); + if (match) + config = (struct flctl_soc_config *)match->data; + else { + dev_err(dev, "%s: no OF configuration attached\n", __func__); + return NULL; + } + + pdata = devm_kzalloc(dev, sizeof(struct sh_flctl_platform_data), + GFP_KERNEL); + if (!pdata) { + dev_err(dev, "%s: failed to allocate config data\n", __func__); + return NULL; + } + + /* set SoC specific options */ + pdata->flcmncr_val = config->flcmncr_val; + pdata->has_hwecc = config->has_hwecc; + pdata->use_holden = config->use_holden; + + /* parse user defined options */ + ret = of_get_nand_bus_width(dn); + if (ret == 16) + pdata->flcmncr_val |= SEL_16BIT; + else if (ret != 8) { + dev_err(dev, "%s: invalid bus width\n", __func__); + return NULL; + } + + return pdata; +} +#else /* CONFIG_OF */ +#define of_flctl_match NULL +static struct sh_flctl_platform_data *flctl_parse_dt(struct device *dev) +{ + return NULL; +} +#endif /* CONFIG_OF */ + static int __devinit flctl_probe(struct platform_device *pdev) { struct resource *res; @@ -1025,12 +1095,7 @@ static int __devinit flctl_probe(struct platform_device *pdev) struct sh_flctl_platform_data *pdata; int ret = -ENXIO; int irq; - - pdata = pdev->dev.platform_data; - if (pdata == NULL) { - dev_err(&pdev->dev, "no platform data defined\n"); - return -EINVAL; - } + struct mtd_part_parser_data ppdata = {}; flctl = kzalloc(sizeof(struct sh_flctl), GFP_KERNEL); if (!flctl) { @@ -1062,6 +1127,17 @@ static int __devinit flctl_probe(struct platform_device *pdev) goto err_flste; } + if (pdev->dev.of_node) + pdata = flctl_parse_dt(&pdev->dev); + else + pdata = pdev->dev.platform_data; + + if (!pdata) { + dev_err(&pdev->dev, "no setup data defined\n"); + ret = -EINVAL; + goto err_pdata; + } + platform_set_drvdata(pdev, flctl); flctl_mtd = &flctl->mtd; nand = &flctl->chip; @@ -1104,13 +1180,16 @@ static int __devinit flctl_probe(struct platform_device *pdev) if (ret) goto err_chip; - mtd_device_register(flctl_mtd, pdata->parts, pdata->nr_parts); + ppdata.of_node = pdev->dev.of_node; + ret = mtd_device_parse_register(flctl_mtd, NULL, &ppdata, pdata->parts, + pdata->nr_parts); return 0; err_chip: flctl_release_dma(flctl); pm_runtime_disable(&pdev->dev); +err_pdata: free_irq(irq, flctl); err_flste: iounmap(flctl->reg); @@ -1138,6 +1217,7 @@ static struct platform_driver flctl_driver = { .driver = { .name = "sh_flctl", .owner = THIS_MODULE, + .of_match_table = of_flctl_match, }, }; From cd409c61287b81d432024c1dbfad292304bf5df3 Mon Sep 17 00:00:00 2001 From: Matthieu CASTET Date: Fri, 19 Oct 2012 17:29:33 +0200 Subject: [PATCH 33/96] mtdoops: don't erase flash at each boot The current version on mtdoops erase first block of mtdoops partition at each boot if there is no oops stored in flash. This can wear the flash. When mtdoops start, find_next_position is called to find the next free entry in the circular buffer. But if the flash is erased, find_next_position don't find anything (maxcount == 0xffffffff) and start with the first entry after erasing it. The scanning that is done in find_next_position already track free/used entries. So if at the end of the scanning we don't find anything, we can start at the first entry and erased the entry only if it is marked as used. Most of this is implemented in mtdoops_inc_counter, so to avoid duplicating code, if we don't find anything we set position to -1. mtdoops_inc_counter with increment it, erase the entry if needed and start as before with nextpage = 0 and nextcount = 1). Also during the scan phase, we use the MTDOOPS_KERNMSG_MAGIC to detect corruped entries. Signed-off-by: Matthieu Castet Signed-off-by: Artem Bityutskiy --- drivers/mtd/mtdoops.c | 15 +++++++-------- 1 file changed, 7 insertions(+), 8 deletions(-) diff --git a/drivers/mtd/mtdoops.c b/drivers/mtd/mtdoops.c index f5b3f91fa1c..97bb8f6304d 100644 --- a/drivers/mtd/mtdoops.c +++ b/drivers/mtd/mtdoops.c @@ -271,7 +271,7 @@ static void find_next_position(struct mtdoops_context *cxt) if (count[0] == 0xffffffff && count[1] == 0xffffffff) mark_page_unused(cxt, page); - if (count[0] == 0xffffffff) + if (count[0] == 0xffffffff || count[1] != MTDOOPS_KERNMSG_MAGIC) continue; if (maxcount == 0xffffffff) { maxcount = count[0]; @@ -289,14 +289,13 @@ static void find_next_position(struct mtdoops_context *cxt) } } if (maxcount == 0xffffffff) { - cxt->nextpage = 0; - cxt->nextcount = 1; - schedule_work(&cxt->work_erase); - return; + cxt->nextpage = cxt->oops_pages - 1; + cxt->nextcount = 0; + } + else { + cxt->nextpage = maxpos; + cxt->nextcount = maxcount; } - - cxt->nextpage = maxpos; - cxt->nextcount = maxcount; mtdoops_inc_counter(cxt); } From 9ef525a9141b14d23613faad303cf48a20814f1b Mon Sep 17 00:00:00 2001 From: "Robert P. J. Day" Date: Thu, 25 Oct 2012 09:43:10 -0400 Subject: [PATCH 34/96] mtd: Fix kernel-doc content to avoid warning. Add missing colons to fix kernel-doc generation warnings. Signed-off-by: Robert P. J. Day Signed-off-by: Artem Bityutskiy --- include/linux/mtd/nand.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h index 24e915957e4..9d8a6048aac 100644 --- a/include/linux/mtd/nand.h +++ b/include/linux/mtd/nand.h @@ -471,8 +471,8 @@ struct nand_buffers { * non 0 if ONFI supported. * @onfi_params: [INTERN] holds the ONFI page parameter when ONFI is * supported, 0 otherwise. - * @onfi_set_features [REPLACEABLE] set the features for ONFI nand - * @onfi_get_features [REPLACEABLE] get the features for ONFI nand + * @onfi_set_features: [REPLACEABLE] set the features for ONFI nand + * @onfi_get_features: [REPLACEABLE] get the features for ONFI nand * @ecclayout: [REPLACEABLE] the default ECC placement scheme * @bbt: [INTERN] bad block table pointer * @bbt_td: [REPLACEABLE] bad block table descriptor for flash From 3e9ce49e0ef95e22790a74720f0068696b2477c9 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Mon, 29 Oct 2012 22:47:26 +0530 Subject: [PATCH 35/96] mtd: map: Fix compilation warning This patch is an attempt to fix following compilation warning. In file included from drivers/mtd/chips/cfi_cmdset_0001.c:35:0: drivers/mtd/chips/cfi_cmdset_0001.c: In function 'cfi_intelext_write_words': include/linux/mtd/map.h:331:11: warning: 'r.x[0]' may be used uninitialized in this function [-Wmaybe-uninitialized] I could have used uninitialized_var() too, but didn't used it as the final else part of map_word_load() is missing. So there is a chance that it might be passed uninitialized. Better initialize to zero. Signed-off-by: Viresh Kumar Signed-off-by: Artem Bityutskiy --- include/linux/mtd/map.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/linux/mtd/map.h b/include/linux/mtd/map.h index 3595a0236b0..56c7936e0c6 100644 --- a/include/linux/mtd/map.h +++ b/include/linux/mtd/map.h @@ -328,7 +328,7 @@ static inline int map_word_bitsset(struct map_info *map, map_word val1, map_word static inline map_word map_word_load(struct map_info *map, const void *ptr) { - map_word r; + map_word r = {{0} }; if (map_bankwidth_is_1(map)) r.x[0] = *(unsigned char *)ptr; From 6f9f59ee2e254a7e997985d8eb708930da49245a Mon Sep 17 00:00:00 2001 From: Huang Shijie Date: Thu, 1 Nov 2012 13:58:17 +0800 Subject: [PATCH 36/96] mtd: cmdlinepart: fix the overflow of big mtd partitions When the kernel parses the following cmdline #mtdparts=gpmi-nand:16m(boot),16m(kernel),1g(home),4g(test),-(usr) for a big nand chip Micron MT29F64G08AFAAAWP(8GB), we got the following wrong result: ............................................. "mtd: partition size too small (0)" ............................................. We can not get any partition. The "4g(test)" partition triggers a overflow of the "size". The memparse() returns 4g to the "size", but the size is "unsigned long" type, so a overflow occurs, the "size" becomes zero in the end. This patch changes the "size"/"offset" to "unsigned long long" type, and replaces the UINT_MAX with ULLONG_MAX for macros SIZE_REMAINING and OFFSET_CONTINUOUS. Signed-off-by: Huang Shijie Signed-off-by: Artem Bityutskiy --- drivers/mtd/cmdlinepart.c | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-) diff --git a/drivers/mtd/cmdlinepart.c b/drivers/mtd/cmdlinepart.c index 4baab3bc613..c533f27d863 100644 --- a/drivers/mtd/cmdlinepart.c +++ b/drivers/mtd/cmdlinepart.c @@ -56,8 +56,8 @@ /* special size referring to all the remaining space in a partition */ -#define SIZE_REMAINING UINT_MAX -#define OFFSET_CONTINUOUS UINT_MAX +#define SIZE_REMAINING ULLONG_MAX +#define OFFSET_CONTINUOUS ULLONG_MAX struct cmdline_mtd_partition { struct cmdline_mtd_partition *next; @@ -89,7 +89,7 @@ static struct mtd_partition * newpart(char *s, int extra_mem_size) { struct mtd_partition *parts; - unsigned long size, offset = OFFSET_CONTINUOUS; + unsigned long long size, offset = OFFSET_CONTINUOUS; char *name; int name_len; unsigned char *extra_mem; @@ -104,7 +104,8 @@ static struct mtd_partition * newpart(char *s, } else { size = memparse(s, &s); if (size < PAGE_SIZE) { - printk(KERN_ERR ERRP "partition size too small (%lx)\n", size); + printk(KERN_ERR ERRP "partition size too small (%llx)\n", + size); return ERR_PTR(-EINVAL); } } @@ -296,7 +297,7 @@ static int parse_cmdline_partitions(struct mtd_info *master, struct mtd_partition **pparts, struct mtd_part_parser_data *data) { - unsigned long offset; + unsigned long long offset; int i, err; struct cmdline_mtd_partition *part; const char *mtd_id = master->name; From 192afdbfbc5c3346e27b3c3e3be8337495b2a41b Mon Sep 17 00:00:00 2001 From: Murali Karicheri Date: Fri, 2 Nov 2012 10:22:41 -0400 Subject: [PATCH 37/96] mtd: davinci: add support for parition binding nodes Enhance the driver to support partition subnodes inside the nand device bindings to describe partions on the nand device. Signed-off-by: Murali Karicheri Reviewed-by: Grant Likely Signed-off-by: Artem Bityutskiy --- .../devicetree/bindings/arm/davinci/nand.txt | 8 ++++++++ drivers/mtd/nand/davinci_nand.c | 11 +++++++++-- 2 files changed, 17 insertions(+), 2 deletions(-) diff --git a/Documentation/devicetree/bindings/arm/davinci/nand.txt b/Documentation/devicetree/bindings/arm/davinci/nand.txt index e37241f1fdd..4746452c4f5 100644 --- a/Documentation/devicetree/bindings/arm/davinci/nand.txt +++ b/Documentation/devicetree/bindings/arm/davinci/nand.txt @@ -23,6 +23,9 @@ Recommended properties : - ti,davinci-nand-buswidth: buswidth 8 or 16 - ti,davinci-nand-use-bbt: use flash based bad block table support. +nand device bindings may contain additional sub-nodes describing +partitions of the address space. See partition.txt for more detail. + Example (enbw_cmc board): aemif@60000000 { compatible = "ti,davinci-aemif"; @@ -47,5 +50,10 @@ aemif@60000000 { ti,davinci-ecc-mode = "hw"; ti,davinci-ecc-bits = <4>; ti,davinci-nand-use-bbt; + + partition@180000 { + label = "ubifs"; + reg = <0x180000 0x7e80000>; + }; }; }; diff --git a/drivers/mtd/nand/davinci_nand.c b/drivers/mtd/nand/davinci_nand.c index 945047ad095..3502606f648 100644 --- a/drivers/mtd/nand/davinci_nand.c +++ b/drivers/mtd/nand/davinci_nand.c @@ -821,9 +821,16 @@ syndrome_done: if (ret < 0) goto err_scan; - ret = mtd_device_parse_register(&info->mtd, NULL, NULL, pdata->parts, - pdata->nr_parts); + if (pdata->parts) + ret = mtd_device_parse_register(&info->mtd, NULL, NULL, + pdata->parts, pdata->nr_parts); + else { + struct mtd_part_parser_data ppdata; + ppdata.of_node = pdev->dev.of_node; + ret = mtd_device_parse_register(&info->mtd, NULL, &ppdata, + NULL, 0); + } if (ret < 0) goto err_scan; From f251b8dfdd0721255ea11751cdc282834e43b74e Mon Sep 17 00:00:00 2001 From: Matthieu CASTET Date: Mon, 5 Nov 2012 15:00:44 +0100 Subject: [PATCH 38/96] mtd: nand_wait: warn if the nand is busy on exit This patch allow to detect buggy driver/hardware with bad RnB (dev_ready) management or when timeout occurs in polling mode. This works when dev_ready is set or not set. There are 2 methods to wait for an erase/program command completion: 1. Wait until nand RnB pin goes high (that's what chip->dev_ready usually does) 2. Poll the device: send a status (0x70) command and read status byte in a loop until bit NAND_STATUS_READY is set In all cases, you should send a status command after completion, to check if the operation was successful. And if the operation completed, the status should have bit NAND_STATUS_READY set. Signed-off-by: Matthieu CASTET Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/nand_base.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c index 1d5c951ebcb..01505406ca7 100644 --- a/drivers/mtd/nand/nand_base.c +++ b/drivers/mtd/nand/nand_base.c @@ -865,6 +865,8 @@ static int nand_wait(struct mtd_info *mtd, struct nand_chip *chip) led_trigger_event(nand_led_trigger, LED_OFF); status = (int)chip->read_byte(mtd); + /* This can happen if in case of timeout or buggy dev_ready */ + WARN_ON(!(status & NAND_STATUS_READY)); return status; } From ca796f85901880c1247e19053d70b640f996813e Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Tue, 6 Nov 2012 22:55:26 +0100 Subject: [PATCH 39/96] mtd: diskonchip: don't warn about ARM architecture Enabling the diskonchip drivers on most architectures results in a pointless warning "#warning Unknown architecture for DiskOnChip. No default probe locations defined". The driver can in fact handle the default location already through the CONFIG_MTD_DOCPROBE_ADDRESS, which gets set on the platforms that need it, and we get a run-time error if this is not set correctly. Signed-off-by: Arnd Bergmann Signed-off-by: Artem Bityutskiy --- drivers/mtd/devices/docprobe.c | 2 -- drivers/mtd/nand/diskonchip.c | 2 -- 2 files changed, 4 deletions(-) diff --git a/drivers/mtd/devices/docprobe.c b/drivers/mtd/devices/docprobe.c index 706b847b46b..88b3fd3e18a 100644 --- a/drivers/mtd/devices/docprobe.c +++ b/drivers/mtd/devices/docprobe.c @@ -70,8 +70,6 @@ static unsigned long __initdata doc_locations[] = { 0xe0000, 0xe2000, 0xe4000, 0xe6000, 0xe8000, 0xea000, 0xec000, 0xee000, #endif /* CONFIG_MTD_DOCPROBE_HIGH */ -#else -#warning Unknown architecture for DiskOnChip. No default probe locations defined #endif 0xffffffff }; diff --git a/drivers/mtd/nand/diskonchip.c b/drivers/mtd/nand/diskonchip.c index 256eb30f618..81fa5784f98 100644 --- a/drivers/mtd/nand/diskonchip.c +++ b/drivers/mtd/nand/diskonchip.c @@ -53,8 +53,6 @@ static unsigned long __initdata doc_locations[] = { 0xe0000, 0xe2000, 0xe4000, 0xe6000, 0xe8000, 0xea000, 0xec000, 0xee000, #endif /* CONFIG_MTD_DOCPROBE_HIGH */ -#else -#warning Unknown architecture for DiskOnChip. No default probe locations defined #endif 0xffffffff }; From d611d41b46c96195b9a168a21992782458826e07 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Tue, 6 Nov 2012 22:55:27 +0100 Subject: [PATCH 40/96] mtd: diskonchip: use inline functions for DocRead/DocWrite The diskonchip drivers traditionally use home-grown macros for doing MMIO accesses, which cause a lot of warnings, at least on ARM machines: drivers/mtd/devices/doc2000.c: In function 'doc_write': drivers/mtd/devices/doc2000.c:854:5: warning: value computed is not used [-Wunused-value] drivers/mtd/devices/doc2000.c: In function 'doc_erase': drivers/mtd/devices/doc2000.c:1123:5: warning: value computed is not used [-Wunused-value drivers/mtd/nand/diskonchip.c: In function 'doc2000_read_byte': drivers/mtd/nand/diskonchip.c:318:3: warning: value computed is not used [-Wunused-value] A nicer solution is to use the architecture-defined I/O accessors. Here, we use the __raw_readl/__raw_writel style, instead of the proper readl/writel ones, in order to preserve the odd semantics of the existing macros that have their own barrier implementation and no byte swap. It would be nice to fix this properly and use the correct accessors as well as make the word size independent from the architecture, but I guess the hardware is obsolete enough that we should better not mess the driver an more than necessary. Signed-off-by: Arnd Bergmann Signed-off-by: Artem Bityutskiy --- include/linux/mtd/doc2000.h | 22 ++++++++++++++++++---- 1 file changed, 18 insertions(+), 4 deletions(-) diff --git a/include/linux/mtd/doc2000.h b/include/linux/mtd/doc2000.h index 0f6fea73a1f..407d1e556c3 100644 --- a/include/linux/mtd/doc2000.h +++ b/include/linux/mtd/doc2000.h @@ -92,12 +92,26 @@ * Others use readb/writeb */ #if defined(__arm__) -#define ReadDOC_(adr, reg) ((unsigned char)(*(volatile __u32 *)(((unsigned long)adr)+((reg)<<2)))) -#define WriteDOC_(d, adr, reg) do{ *(volatile __u32 *)(((unsigned long)adr)+((reg)<<2)) = (__u32)d; wmb();} while(0) +static inline u8 ReadDOC_(u32 __iomem *addr, unsigned long reg) +{ + return __raw_readl(addr + reg); +} +static inline void WriteDOC_(u8 data, u32 __iomem *addr, unsigned long reg) +{ + __raw_writel(data, addr + reg); + wmb(); +} #define DOC_IOREMAP_LEN 0x8000 #elif defined(__ppc__) -#define ReadDOC_(adr, reg) ((unsigned char)(*(volatile __u16 *)(((unsigned long)adr)+((reg)<<1)))) -#define WriteDOC_(d, adr, reg) do{ *(volatile __u16 *)(((unsigned long)adr)+((reg)<<1)) = (__u16)d; wmb();} while(0) +static inline u8 ReadDOC_(u16 __iomem *addr, unsigned long reg) +{ + return __raw_readw(addr + reg); +} +static inline void WriteDOC_(u8 data, u16 __iomem *addr, unsigned long reg) +{ + __raw_writew(data, addr + reg); + wmb(); +} #define DOC_IOREMAP_LEN 0x4000 #else #define ReadDOC_(adr, reg) readb((void __iomem *)(adr) + (reg)) From 5d27aa5af04f58f3020de1c224dcf8a62151fd58 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Tue, 6 Nov 2012 22:55:28 +0100 Subject: [PATCH 41/96] mtd: uninitialized variable warning in map.h The map_word_load() function initializes exactly as many words in the buffer as required, but gcc cannot figure this out and gives a misleading warning. Marking the local variable as uninitialized_var shuts up that warning. Without this patch, building acs5k_defconfig results in: drivers/mtd/chips/cfi_cmdset_0002.c: In function 'cfi_amdstd_panic_write': include/linux/mtd/map.h:331:11: warning: 'r.x[0]' may be used uninitialized in this function [-Wuninitialized] drivers/mtd/chips/cfi_cmdset_0002.c: In function 'cfi_amdstd_write_words': include/linux/mtd/map.h:331:11: warning: 'r.x[0]' may be used uninitialized in this function [-Wuninitialized] drivers/mtd/chips/cfi_cmdset_0001.c: In function 'cfi_intelext_write_words': include/linux/mtd/map.h:331:11: warning: 'r.x[0]' may be used uninitialized in this function [-Wuninitialized] Signed-off-by: Arnd Bergmann Signed-off-by: Artem Bityutskiy --- include/linux/mtd/map.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/linux/mtd/map.h b/include/linux/mtd/map.h index 56c7936e0c6..f6eb4332ac9 100644 --- a/include/linux/mtd/map.h +++ b/include/linux/mtd/map.h @@ -391,7 +391,7 @@ static inline map_word map_word_ff(struct map_info *map) static inline map_word inline_map_read(struct map_info *map, unsigned long ofs) { - map_word r; + map_word uninitialized_var(r); if (map_bankwidth_is_1(map)) r.x[0] = __raw_readb(map->virt + ofs); From d6ba745d0a073a0f48053fa4744ab2e86c310aad Mon Sep 17 00:00:00 2001 From: Prabhakar Kushwaha Date: Thu, 8 Nov 2012 13:42:59 +0530 Subject: [PATCH 42/96] mtd: fsl_ifc_nand: wait tWB time, poll R/B before command execution IFC_FIR_OP_CMD0 issues command for execution without checking flash readiness. It may cause problem if flash is not ready. Instead use IFC_FIR_OP_CW0 which Wait for tWB time and poll R/B to return high or time-out, before issuing command. NAND_CMD_READID command implemention does not fulfill above requirement. So update its programming. Signed-off-by: Prabhakar Kushwaha Signed-off-by: Hemant Nautiyal Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/fsl_ifc_nand.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/mtd/nand/fsl_ifc_nand.c b/drivers/mtd/nand/fsl_ifc_nand.c index 3551a99076b..53152310804 100644 --- a/drivers/mtd/nand/fsl_ifc_nand.c +++ b/drivers/mtd/nand/fsl_ifc_nand.c @@ -389,7 +389,7 @@ static void fsl_ifc_cmdfunc(struct mtd_info *mtd, unsigned int command, timing = IFC_FIR_OP_RBCD; out_be32(&ifc->ifc_nand.nand_fir0, - (IFC_FIR_OP_CMD0 << IFC_NAND_FIR0_OP0_SHIFT) | + (IFC_FIR_OP_CW0 << IFC_NAND_FIR0_OP0_SHIFT) | (IFC_FIR_OP_UA << IFC_NAND_FIR0_OP1_SHIFT) | (timing << IFC_NAND_FIR0_OP2_SHIFT)); out_be32(&ifc->ifc_nand.nand_fcr0, @@ -754,7 +754,7 @@ static void fsl_ifc_sram_init(struct fsl_ifc_mtd *priv) /* READID */ out_be32(&ifc->ifc_nand.nand_fir0, - (IFC_FIR_OP_CMD0 << IFC_NAND_FIR0_OP0_SHIFT) | + (IFC_FIR_OP_CW0 << IFC_NAND_FIR0_OP0_SHIFT) | (IFC_FIR_OP_UA << IFC_NAND_FIR0_OP1_SHIFT) | (IFC_FIR_OP_RB << IFC_NAND_FIR0_OP2_SHIFT)); out_be32(&ifc->ifc_nand.nand_fcr0, From d68cbdd4fb04d2b756ad53c22f36943167b16340 Mon Sep 17 00:00:00 2001 From: Jean-Christophe PLAGNIOL-VILLARD Date: Wed, 7 Nov 2012 16:32:16 +0100 Subject: [PATCH 43/96] mtd: physmap_of: allow to specify the mtd name for retro compatiblity linux,mtd-name allow to specify the mtd name for retro capability with physmap-flash drivers as boot loader pass the mtd partition via the old device name physmap-flash. Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD Signed-off-by: Artem Bityutskiy --- Documentation/devicetree/bindings/mtd/mtd-physmap.txt | 3 +++ drivers/mtd/maps/physmap_of.c | 5 ++++- 2 files changed, 7 insertions(+), 1 deletion(-) diff --git a/Documentation/devicetree/bindings/mtd/mtd-physmap.txt b/Documentation/devicetree/bindings/mtd/mtd-physmap.txt index 94de19b8f16..dab7847fc80 100644 --- a/Documentation/devicetree/bindings/mtd/mtd-physmap.txt +++ b/Documentation/devicetree/bindings/mtd/mtd-physmap.txt @@ -23,6 +23,9 @@ file systems on embedded devices. unaligned accesses as implemented in the JFFS2 code via memcpy(). By defining "no-unaligned-direct-access", the flash will not be exposed directly to the MTD users (e.g. JFFS2) any more. + - linux,mtd-name: allow to specify the mtd name for retro capability with + physmap-flash drivers as boot loader pass the mtd partition via the old + device name physmap-flash. For JEDEC compatible devices, the following additional properties are defined: diff --git a/drivers/mtd/maps/physmap_of.c b/drivers/mtd/maps/physmap_of.c index 6f19acadb06..d7f19bc6de4 100644 --- a/drivers/mtd/maps/physmap_of.c +++ b/drivers/mtd/maps/physmap_of.c @@ -170,6 +170,7 @@ static int __devinit of_flash_probe(struct platform_device *dev) resource_size_t res_size; struct mtd_part_parser_data ppdata; bool map_indirect; + const char *mtd_name; match = of_match_device(of_flash_match, &dev->dev); if (!match) @@ -178,6 +179,8 @@ static int __devinit of_flash_probe(struct platform_device *dev) reg_tuple_size = (of_n_addr_cells(dp) + of_n_size_cells(dp)) * sizeof(u32); + of_property_read_string(dp, "linux,mtd-name", &mtd_name); + /* * Get number of "reg" tuples. Scan for MTD devices on area's * described by each "reg" region. This makes it possible (including @@ -234,7 +237,7 @@ static int __devinit of_flash_probe(struct platform_device *dev) goto err_out; } - info->list[i].map.name = dev_name(&dev->dev); + info->list[i].map.name = mtd_name ?: dev_name(&dev->dev); info->list[i].map.phys = res.start; info->list[i].map.size = res_size; info->list[i].map.bankwidth = be32_to_cpup(width); From 2cbba75a56ea78e6876b4e2547a882f10b3fe72b Mon Sep 17 00:00:00 2001 From: Alexey Khoroshilov Date: Mon, 5 Nov 2012 22:40:14 +0400 Subject: [PATCH 44/96] jffs2: hold erase_completion_lock on exit Users of jffs2_do_reserve_space() expect they still held erase_completion_lock after call to it. But there is a path where jffs2_do_reserve_space() leaves erase_completion_lock unlocked. The patch fixes it. Found by Linux Driver Verification project (linuxtesting.org). Signed-off-by: Alexey Khoroshilov Cc: stable@vger.kernel.org Signed-off-by: Artem Bityutskiy --- fs/jffs2/nodemgmt.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/fs/jffs2/nodemgmt.c b/fs/jffs2/nodemgmt.c index 0c96eb52c79..03310721712 100644 --- a/fs/jffs2/nodemgmt.c +++ b/fs/jffs2/nodemgmt.c @@ -417,14 +417,16 @@ static int jffs2_do_reserve_space(struct jffs2_sb_info *c, uint32_t minsize, spin_unlock(&c->erase_completion_lock); ret = jffs2_prealloc_raw_node_refs(c, jeb, 1); - if (ret) - return ret; + /* Just lock it again and continue. Nothing much can change because we hold c->alloc_sem anyway. In fact, it's not entirely clear why we hold c->erase_completion_lock in the majority of this function... but that's a question for another (more caffeine-rich) day. */ spin_lock(&c->erase_completion_lock); + if (ret) + return ret; + waste = jeb->free_size; jffs2_link_node_ref(c, jeb, (jeb->offset + c->sector_size - waste) | REF_OBSOLETE, From ded4c55d108e0e4e4ba221b39a782e85d77a5ca0 Mon Sep 17 00:00:00 2001 From: Sachin Kamat Date: Fri, 16 Nov 2012 16:08:22 +0530 Subject: [PATCH 45/96] mtd: s3c2410: Fix potential NULL pointer dereference error 'set' is tested for NULL. But subsequently accessed without the check. Thus making it conditional to avoid NULL pointer dereferencing. Signed-off-by: Sachin Kamat Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/s3c2410.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/drivers/mtd/nand/s3c2410.c b/drivers/mtd/nand/s3c2410.c index 295e4bedad9..bbc49c49607 100644 --- a/drivers/mtd/nand/s3c2410.c +++ b/drivers/mtd/nand/s3c2410.c @@ -730,11 +730,14 @@ static int s3c2410_nand_add_partition(struct s3c2410_nand_info *info, struct s3c2410_nand_mtd *mtd, struct s3c2410_nand_set *set) { - if (set) + if (set) { mtd->mtd.name = set->name; - return mtd_device_parse_register(&mtd->mtd, NULL, NULL, + return mtd_device_parse_register(&mtd->mtd, NULL, NULL, set->partitions, set->nr_partitions); + } + + return -ENODEV; } /** From 07300164657526d8d26c626c43723c310fbf3616 Mon Sep 17 00:00:00 2001 From: Huang Shijie Date: Fri, 9 Nov 2012 16:23:45 +0800 Subject: [PATCH 46/96] mtd: de-select the chip when it is not used When we scan several nand chips with nand_scan(), such as ....................... nand_scan(*, 2); ....................... In nand_scan_ident(), the maxchips will become 2, so the current code will select chip 1 to read the device ID. But the chip 0 is still selected in this case. To make the logic clear, we'd better de-select the chip when it is not used. This patch de-select the nand chip if it is not used any more. Signed-off-by: Huang Shijie Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/nand_base.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c index 01505406ca7..95d56ed8500 100644 --- a/drivers/mtd/nand/nand_base.c +++ b/drivers/mtd/nand/nand_base.c @@ -3329,6 +3329,8 @@ int nand_scan_ident(struct mtd_info *mtd, int maxchips, return PTR_ERR(type); } + chip->select_chip(mtd, -1); + /* Check for a chip array */ for (i = 1; i < maxchips; i++) { chip->select_chip(mtd, i); @@ -3338,8 +3340,11 @@ int nand_scan_ident(struct mtd_info *mtd, int maxchips, chip->cmdfunc(mtd, NAND_CMD_READID, 0x00, -1); /* Read manufacturer and device IDs */ if (nand_maf_id != chip->read_byte(mtd) || - nand_dev_id != chip->read_byte(mtd)) + nand_dev_id != chip->read_byte(mtd)) { + chip->select_chip(mtd, -1); break; + } + chip->select_chip(mtd, -1); } if (i > 1) pr_info("%d NAND chips detected\n", i); @@ -3598,9 +3603,6 @@ int nand_scan_tail(struct mtd_info *mtd) /* Initialize state */ chip->state = FL_READY; - /* De-select the device */ - chip->select_chip(mtd, -1); - /* Invalidate the pagebuffer reference */ chip->pagebuf = -1; From 064a7694b5347208febeb7aba7c90d38934ec8a1 Mon Sep 17 00:00:00 2001 From: Masanari Iida Date: Fri, 9 Nov 2012 23:20:58 +0900 Subject: [PATCH 47/96] mtd: Fix typo mtd/tests Correct spelling typo in printk within drivers/mtd/tests. Signed-off-by: Masanari Iida Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/nand_base.c | 2 +- drivers/mtd/tests/mtd_oobtest.c | 4 ++-- drivers/mtd/tests/mtd_pagetest.c | 2 +- drivers/mtd/tests/mtd_readtest.c | 2 +- drivers/mtd/tests/mtd_speedtest.c | 2 +- drivers/mtd/tests/mtd_stresstest.c | 2 +- drivers/mtd/tests/mtd_subpagetest.c | 2 +- drivers/mtd/tests/mtd_torturetest.c | 2 +- 8 files changed, 9 insertions(+), 9 deletions(-) diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c index 95d56ed8500..6eef7fbe8fd 100644 --- a/drivers/mtd/nand/nand_base.c +++ b/drivers/mtd/nand/nand_base.c @@ -160,7 +160,7 @@ static uint8_t nand_read_byte(struct mtd_info *mtd) } /** - * nand_read_byte16 - [DEFAULT] read one byte endianess aware from the chip + * nand_read_byte16 - [DEFAULT] read one byte endianness aware from the chip * nand_read_byte16 - [DEFAULT] read one byte endianness aware from the chip * @mtd: MTD device structure * diff --git a/drivers/mtd/tests/mtd_oobtest.c b/drivers/mtd/tests/mtd_oobtest.c index e86bb29419a..e827fa8cd84 100644 --- a/drivers/mtd/tests/mtd_oobtest.c +++ b/drivers/mtd/tests/mtd_oobtest.c @@ -366,8 +366,8 @@ static int __init mtd_oobtest_init(void) printk(KERN_INFO "=================================================\n"); if (dev < 0) { - pr_info("Please specify a valid mtd-device via module paramter\n"); - pr_crit(KERN_CRIT "CAREFUL: This test wipes all data on the specified MTD device!\n"); + pr_info("Please specify a valid mtd-device via module parameter\n"); + pr_crit("CAREFUL: This test wipes all data on the specified MTD device!\n"); return -EINVAL; } diff --git a/drivers/mtd/tests/mtd_pagetest.c b/drivers/mtd/tests/mtd_pagetest.c index 3ba2a77dbda..f93a76f8811 100644 --- a/drivers/mtd/tests/mtd_pagetest.c +++ b/drivers/mtd/tests/mtd_pagetest.c @@ -499,7 +499,7 @@ static int __init mtd_pagetest_init(void) printk(KERN_INFO "=================================================\n"); if (dev < 0) { - pr_info("Please specify a valid mtd-device via module paramter\n"); + pr_info("Please specify a valid mtd-device via module parameter\n"); pr_crit("CAREFUL: This test wipes all data on the specified MTD device!\n"); return -EINVAL; } diff --git a/drivers/mtd/tests/mtd_readtest.c b/drivers/mtd/tests/mtd_readtest.c index ec3efb53826..31f505cc942 100644 --- a/drivers/mtd/tests/mtd_readtest.c +++ b/drivers/mtd/tests/mtd_readtest.c @@ -171,7 +171,7 @@ static int __init mtd_readtest_init(void) printk(KERN_INFO "=================================================\n"); if (dev < 0) { - pr_info("Please specify a valid mtd-device via module paramter\n"); + pr_info("Please specify a valid mtd-device via module parameter\n"); return -EINVAL; } diff --git a/drivers/mtd/tests/mtd_speedtest.c b/drivers/mtd/tests/mtd_speedtest.c index 8a5803b1724..596cbea8df4 100644 --- a/drivers/mtd/tests/mtd_speedtest.c +++ b/drivers/mtd/tests/mtd_speedtest.c @@ -351,7 +351,7 @@ static int __init mtd_speedtest_init(void) printk(KERN_INFO "=================================================\n"); if (dev < 0) { - pr_info("Please specify a valid mtd-device via module paramter\n"); + pr_info("Please specify a valid mtd-device via module parameter\n"); pr_crit("CAREFUL: This test wipes all data on the specified MTD device!\n"); return -EINVAL; } diff --git a/drivers/mtd/tests/mtd_stresstest.c b/drivers/mtd/tests/mtd_stresstest.c index fea1dd78ccb..3729f679ae5 100644 --- a/drivers/mtd/tests/mtd_stresstest.c +++ b/drivers/mtd/tests/mtd_stresstest.c @@ -231,7 +231,7 @@ static int __init mtd_stresstest_init(void) printk(KERN_INFO "=================================================\n"); if (dev < 0) { - pr_info("Please specify a valid mtd-device via module paramter\n"); + pr_info("Please specify a valid mtd-device via module parameter\n"); pr_crit("CAREFUL: This test wipes all data on the specified MTD device!\n"); return -EINVAL; } diff --git a/drivers/mtd/tests/mtd_subpagetest.c b/drivers/mtd/tests/mtd_subpagetest.c index 8813b0e8663..c880c2229c5 100644 --- a/drivers/mtd/tests/mtd_subpagetest.c +++ b/drivers/mtd/tests/mtd_subpagetest.c @@ -377,7 +377,7 @@ static int __init mtd_subpagetest_init(void) printk(KERN_INFO "=================================================\n"); if (dev < 0) { - pr_info("Please specify a valid mtd-device via module paramter\n"); + pr_info("Please specify a valid mtd-device via module parameter\n"); pr_crit("CAREFUL: This test wipes all data on the specified MTD device!\n"); return -EINVAL; } diff --git a/drivers/mtd/tests/mtd_torturetest.c b/drivers/mtd/tests/mtd_torturetest.c index 98d2a820625..c4cde1e9edd 100644 --- a/drivers/mtd/tests/mtd_torturetest.c +++ b/drivers/mtd/tests/mtd_torturetest.c @@ -216,7 +216,7 @@ static int __init tort_init(void) "flash, stop it if this is not wanted.\n"); if (dev < 0) { - pr_info("Please specify a valid mtd-device via module paramter\n"); + pr_info("Please specify a valid mtd-device via module parameter\n"); pr_crit("CAREFUL: This test wipes all data on the specified MTD device!\n"); return -EINVAL; } From 9329c5eb5b087d6e6af905bd7e4f7eee13f9f7e5 Mon Sep 17 00:00:00 2001 From: Ezequiel Garcia Date: Fri, 9 Nov 2012 12:36:35 -0300 Subject: [PATCH 48/96] mtd: mtd_blkdev: Use a different name for block_device_operations variable struct mtd_blktrans_ops is a type, and mtd_blktrans_ops is a variable. To improve code clarity it's better to not use the same names, so we just change the latter. Signed-off-by: Ezequiel Garcia Signed-off-by: Artem Bityutskiy --- drivers/mtd/mtd_blkdevs.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/mtd/mtd_blkdevs.c b/drivers/mtd/mtd_blkdevs.c index f1f06715d4e..26ef2a72bda 100644 --- a/drivers/mtd/mtd_blkdevs.c +++ b/drivers/mtd/mtd_blkdevs.c @@ -325,7 +325,7 @@ unlock: return ret; } -static const struct block_device_operations mtd_blktrans_ops = { +static const struct block_device_operations mtd_block_ops = { .owner = THIS_MODULE, .open = blktrans_open, .release = blktrans_release, @@ -401,7 +401,7 @@ int add_mtd_blktrans_dev(struct mtd_blktrans_dev *new) gd->private_data = new; gd->major = tr->major; gd->first_minor = (new->devnum) << tr->part_bits; - gd->fops = &mtd_blktrans_ops; + gd->fops = &mtd_block_ops; if (tr->part_bits) if (new->devnum < 26) From 22a8578fca5a47e643bb4f70c232d0ec84db9e4e Mon Sep 17 00:00:00 2001 From: Ezequiel Garcia Date: Sat, 10 Nov 2012 13:08:20 -0300 Subject: [PATCH 49/96] mtd: mtd_blkdevs: Replace request handler kthread with a workqueue By replacing a kthread with a workqueue, the code is now a bit clearer. There's also a slight reduction of code size (numbers apply for x86): Before: text data bss dec hex filename 3248 36 0 3284 cd4 drivers/mtd/mtd_blkdevs.o After: text data bss dec hex filename 3150 36 0 3186 c72 drivers/mtd/mtd_blkdevs.o Due to lack of real hardware, tests have been performed on an emulated environment with mtdswap and mtdblock over nandsim devices. Some real testing should be done, before merging this patch. Signed-off-by: Ezequiel Garcia Signed-off-by: Artem Bityutskiy --- drivers/mtd/mtd_blkdevs.c | 47 ++++++++++++------------------------ include/linux/mtd/blktrans.h | 4 ++- 2 files changed, 18 insertions(+), 33 deletions(-) diff --git a/drivers/mtd/mtd_blkdevs.c b/drivers/mtd/mtd_blkdevs.c index 26ef2a72bda..5ad39bb5ab4 100644 --- a/drivers/mtd/mtd_blkdevs.c +++ b/drivers/mtd/mtd_blkdevs.c @@ -32,7 +32,6 @@ #include #include #include -#include #include #include "mtdcore.h" @@ -121,16 +120,14 @@ static int do_blktrans_request(struct mtd_blktrans_ops *tr, int mtd_blktrans_cease_background(struct mtd_blktrans_dev *dev) { - if (kthread_should_stop()) - return 1; - return dev->bg_stop; } EXPORT_SYMBOL_GPL(mtd_blktrans_cease_background); -static int mtd_blktrans_thread(void *arg) +static void mtd_blktrans_work(struct work_struct *work) { - struct mtd_blktrans_dev *dev = arg; + struct mtd_blktrans_dev *dev = + container_of(work, struct mtd_blktrans_dev, work); struct mtd_blktrans_ops *tr = dev->tr; struct request_queue *rq = dev->rq; struct request *req = NULL; @@ -138,7 +135,7 @@ static int mtd_blktrans_thread(void *arg) spin_lock_irq(rq->queue_lock); - while (!kthread_should_stop()) { + while (1) { int res; dev->bg_stop = false; @@ -156,15 +153,7 @@ static int mtd_blktrans_thread(void *arg) background_done = !dev->bg_stop; continue; } - set_current_state(TASK_INTERRUPTIBLE); - - if (kthread_should_stop()) - set_current_state(TASK_RUNNING); - - spin_unlock_irq(rq->queue_lock); - schedule(); - spin_lock_irq(rq->queue_lock); - continue; + break; } spin_unlock_irq(rq->queue_lock); @@ -185,8 +174,6 @@ static int mtd_blktrans_thread(void *arg) __blk_end_request_all(req, -EIO); spin_unlock_irq(rq->queue_lock); - - return 0; } static void mtd_blktrans_request(struct request_queue *rq) @@ -199,10 +186,8 @@ static void mtd_blktrans_request(struct request_queue *rq) if (!dev) while ((req = blk_fetch_request(rq)) != NULL) __blk_end_request_all(req, -ENODEV); - else { - dev->bg_stop = true; - wake_up_process(dev->thread); - } + else + queue_work(dev->wq, &dev->work); } static int blktrans_open(struct block_device *bdev, fmode_t mode) @@ -437,14 +422,13 @@ int add_mtd_blktrans_dev(struct mtd_blktrans_dev *new) gd->queue = new->rq; - /* Create processing thread */ - /* TODO: workqueue ? */ - new->thread = kthread_run(mtd_blktrans_thread, new, - "%s%d", tr->name, new->mtd->index); - if (IS_ERR(new->thread)) { - ret = PTR_ERR(new->thread); + /* Create processing workqueue */ + new->wq = alloc_workqueue("%s%d", 0, 0, + tr->name, new->mtd->index); + if (!new->wq) goto error4; - } + INIT_WORK(&new->work, mtd_blktrans_work); + gd->driverfs_dev = &new->mtd->dev; if (new->readonly) @@ -484,9 +468,8 @@ int del_mtd_blktrans_dev(struct mtd_blktrans_dev *old) /* Stop new requests to arrive */ del_gendisk(old->disk); - - /* Stop the thread */ - kthread_stop(old->thread); + /* Stop workqueue. This will perform any pending request. */ + destroy_workqueue(old->wq); /* Kill current requests */ spin_lock_irqsave(&old->queue_lock, flags); diff --git a/include/linux/mtd/blktrans.h b/include/linux/mtd/blktrans.h index ed270bd2e4d..4eb0a50d0c5 100644 --- a/include/linux/mtd/blktrans.h +++ b/include/linux/mtd/blktrans.h @@ -23,6 +23,7 @@ #include #include #include +#include struct hd_geometry; struct mtd_info; @@ -43,7 +44,8 @@ struct mtd_blktrans_dev { struct kref ref; struct gendisk *disk; struct attribute_group *disk_attributes; - struct task_struct *thread; + struct workqueue_struct *wq; + struct work_struct work; struct request_queue *rq; spinlock_t queue_lock; void *priv; From 9ff407385441744ea4618f109535014c4b651f8a Mon Sep 17 00:00:00 2001 From: Luka Perkov Date: Sun, 11 Nov 2012 20:32:15 +0100 Subject: [PATCH 50/96] mtd: use SQUASHFS_MAGIC from uapi/linux/magic.h Signed-off-by: Luka Perkov Signed-off-by: Artem Bityutskiy --- drivers/mtd/ar7part.c | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-) diff --git a/drivers/mtd/ar7part.c b/drivers/mtd/ar7part.c index 94539312995..7c057a05adb 100644 --- a/drivers/mtd/ar7part.c +++ b/drivers/mtd/ar7part.c @@ -26,19 +26,16 @@ #include #include #include -#include #include +#include + #define AR7_PARTS 4 #define ROOT_OFFSET 0xe0000 #define LOADER_MAGIC1 le32_to_cpu(0xfeedfa42) #define LOADER_MAGIC2 le32_to_cpu(0xfeed1281) -#ifndef SQUASHFS_MAGIC -#define SQUASHFS_MAGIC 0x73717368 -#endif - struct ar7_bin_rec { unsigned int checksum; unsigned int length; From fafc3d6880b28fe55af935fd43b23a29d61c537d Mon Sep 17 00:00:00 2001 From: Jonas Gorski Date: Mon, 12 Nov 2012 10:52:47 +0100 Subject: [PATCH 51/96] mtd: bcm63xxpart: remove unused variable namelen is never used, so drop it. Signed-off-by: Jonas Gorski Reviewed-by: Florian Fainelli Signed-off-by: Artem Bityutskiy --- drivers/mtd/bcm63xxpart.c | 11 +++-------- 1 file changed, 3 insertions(+), 8 deletions(-) diff --git a/drivers/mtd/bcm63xxpart.c b/drivers/mtd/bcm63xxpart.c index 63d2a64331f..1eb1416404a 100644 --- a/drivers/mtd/bcm63xxpart.c +++ b/drivers/mtd/bcm63xxpart.c @@ -79,7 +79,6 @@ static int bcm63xx_parse_cfe_partitions(struct mtd_info *master, unsigned int rootfsaddr, kerneladdr, spareaddr; unsigned int rootfslen, kernellen, sparelen, totallen; unsigned int cfelen, nvramlen; - int namelen = 0; int i; u32 computed_crc; bool rootfs_first = false; @@ -143,15 +142,11 @@ static int bcm63xx_parse_cfe_partitions(struct mtd_info *master, } /* Determine number of partitions */ - namelen = 8; - if (rootfslen > 0) { + if (rootfslen > 0) nrparts++; - namelen += 6; - } - if (kernellen > 0) { + + if (kernellen > 0) nrparts++; - namelen += 6; - } /* Ask kernel for more memory */ parts = kzalloc(sizeof(*parts) * nrparts + 10 * nrparts, GFP_KERNEL); From e190401ba1ca20d76f22c1f0aada0abd5bdc1afe Mon Sep 17 00:00:00 2001 From: Jonas Gorski Date: Mon, 12 Nov 2012 10:52:48 +0100 Subject: [PATCH 52/96] mtd: bcm63xxpart: merge sparelen calculation The length of the spare part is calculated the same way in both branches so move to a common place. Signed-off-by: Jonas Gorski Reviewed-by: Florian Fainelli Signed-off-by: Artem Bityutskiy --- drivers/mtd/bcm63xxpart.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/mtd/bcm63xxpart.c b/drivers/mtd/bcm63xxpart.c index 1eb1416404a..ba7eeb874b3 100644 --- a/drivers/mtd/bcm63xxpart.c +++ b/drivers/mtd/bcm63xxpart.c @@ -120,7 +120,6 @@ static int bcm63xx_parse_cfe_partitions(struct mtd_info *master, kerneladdr = kerneladdr - BCM63XX_EXTENDED_SIZE; rootfsaddr = rootfsaddr - BCM63XX_EXTENDED_SIZE; spareaddr = roundup(totallen, master->erasesize) + cfelen; - sparelen = master->size - spareaddr - nvramlen; if (rootfsaddr < kerneladdr) { /* default Broadcom layout */ @@ -138,8 +137,8 @@ static int bcm63xx_parse_cfe_partitions(struct mtd_info *master, rootfslen = 0; rootfsaddr = 0; spareaddr = cfelen; - sparelen = master->size - cfelen - nvramlen; } + sparelen = master->size - spareaddr - nvramlen; /* Determine number of partitions */ if (rootfslen > 0) From 4e4fb63955650e39ccfbd376733fa258adfb1e5d Mon Sep 17 00:00:00 2001 From: Jonas Gorski Date: Mon, 12 Nov 2012 10:52:49 +0100 Subject: [PATCH 53/96] mtd: bcm63xxpart: make fixed part length calculation more generic The CFE does not use 4K sectors even if the flash supports it, so for the fixed partitions like CFE itself or NVRAM the erase block size is always 64k or bigger. Signed-off-by: Jonas Gorski Reviewed-by: Florian Fainelli Signed-off-by: Artem Bityutskiy --- drivers/mtd/bcm63xxpart.c | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) diff --git a/drivers/mtd/bcm63xxpart.c b/drivers/mtd/bcm63xxpart.c index ba7eeb874b3..b3db8e35a23 100644 --- a/drivers/mtd/bcm63xxpart.c +++ b/drivers/mtd/bcm63xxpart.c @@ -37,8 +37,7 @@ #define BCM63XX_EXTENDED_SIZE 0xBFC00000 /* Extended flash address */ -#define BCM63XX_MIN_CFE_SIZE 0x10000 /* always at least 64KiB */ -#define BCM63XX_MIN_NVRAM_SIZE 0x10000 /* always at least 64KiB */ +#define BCM63XX_CFE_BLOCK_SIZE 0x10000 /* always at least 64KiB */ #define BCM63XX_CFE_MAGIC_OFFSET 0x4e0 @@ -79,6 +78,7 @@ static int bcm63xx_parse_cfe_partitions(struct mtd_info *master, unsigned int rootfsaddr, kerneladdr, spareaddr; unsigned int rootfslen, kernellen, sparelen, totallen; unsigned int cfelen, nvramlen; + unsigned int cfe_erasesize; int i; u32 computed_crc; bool rootfs_first = false; @@ -86,8 +86,11 @@ static int bcm63xx_parse_cfe_partitions(struct mtd_info *master, if (bcm63xx_detect_cfe(master)) return -EINVAL; - cfelen = max_t(uint32_t, master->erasesize, BCM63XX_MIN_CFE_SIZE); - nvramlen = max_t(uint32_t, master->erasesize, BCM63XX_MIN_NVRAM_SIZE); + cfe_erasesize = max_t(uint32_t, master->erasesize, + BCM63XX_CFE_BLOCK_SIZE); + + cfelen = cfe_erasesize; + nvramlen = cfe_erasesize; /* Allocate memory for buffer */ buf = vmalloc(sizeof(struct bcm_tag)); From f3f9a5dac79880af9a27f520fbeff11314ef9dde Mon Sep 17 00:00:00 2001 From: Jonas Gorski Date: Mon, 12 Nov 2012 10:52:50 +0100 Subject: [PATCH 54/96] mtd: bcm63xxpart: move the last curpart++ to its correct place The line belongs above the comment, not below it. Signed-off-by: Jonas Gorski Reviewed-by: Florian Fainelli Signed-off-by: Artem Bityutskiy --- drivers/mtd/bcm63xxpart.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/mtd/bcm63xxpart.c b/drivers/mtd/bcm63xxpart.c index b3db8e35a23..44cba4eba34 100644 --- a/drivers/mtd/bcm63xxpart.c +++ b/drivers/mtd/bcm63xxpart.c @@ -190,9 +190,9 @@ static int bcm63xx_parse_cfe_partitions(struct mtd_info *master, parts[curpart].name = "nvram"; parts[curpart].offset = master->size - nvramlen; parts[curpart].size = nvramlen; + curpart++; /* Global partition "linux" to make easy firmware upgrade */ - curpart++; parts[curpart].name = "linux"; parts[curpart].offset = cfelen; parts[curpart].size = master->size - cfelen - nvramlen; From 60768368b76b2794b088bb66fbd07557a10fa77e Mon Sep 17 00:00:00 2001 From: Jonas Gorski Date: Mon, 12 Nov 2012 10:52:51 +0100 Subject: [PATCH 55/96] mtd: bcm63xxpart: use correct printk format for partitions Use ll to be able to remove the casts. Signed-off-by: Jonas Gorski Reviewed-by: Florian Fainelli Signed-off-by: Artem Bityutskiy --- drivers/mtd/bcm63xxpart.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/mtd/bcm63xxpart.c b/drivers/mtd/bcm63xxpart.c index 44cba4eba34..6eeb84c81bc 100644 --- a/drivers/mtd/bcm63xxpart.c +++ b/drivers/mtd/bcm63xxpart.c @@ -198,9 +198,8 @@ static int bcm63xx_parse_cfe_partitions(struct mtd_info *master, parts[curpart].size = master->size - cfelen - nvramlen; for (i = 0; i < nrparts; i++) - pr_info("Partition %d is %s offset %lx and length %lx\n", i, - parts[i].name, (long unsigned int)(parts[i].offset), - (long unsigned int)(parts[i].size)); + pr_info("Partition %d is %s offset %llx and length %llx\n", i, + parts[i].name, parts[i].offset, parts[i].size); pr_info("Spare partition is offset %x and length %x\n", spareaddr, sparelen); From 8d4b9e3182634d8b5afb5a144a8c6c24b187bcc1 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= Date: Mon, 12 Nov 2012 13:03:20 +0100 Subject: [PATCH 56/96] bcma: export PLL reading function MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This is required by NAND flash driver for initializing wait counters. Signed-off-by: Rafał Miłecki Signed-off-by: Artem Bityutskiy --- drivers/bcma/driver_chipcommon_pmu.c | 3 ++- include/linux/bcma/bcma.h | 1 + 2 files changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/bcma/driver_chipcommon_pmu.c b/drivers/bcma/driver_chipcommon_pmu.c index 201faf106b3..657f2351748 100644 --- a/drivers/bcma/driver_chipcommon_pmu.c +++ b/drivers/bcma/driver_chipcommon_pmu.c @@ -13,12 +13,13 @@ #include #include -static u32 bcma_chipco_pll_read(struct bcma_drv_cc *cc, u32 offset) +u32 bcma_chipco_pll_read(struct bcma_drv_cc *cc, u32 offset) { bcma_cc_write32(cc, BCMA_CC_PLLCTL_ADDR, offset); bcma_cc_read32(cc, BCMA_CC_PLLCTL_ADDR); return bcma_cc_read32(cc, BCMA_CC_PLLCTL_DATA); } +EXPORT_SYMBOL_GPL(bcma_chipco_pll_read); void bcma_chipco_pll_write(struct bcma_drv_cc *cc, u32 offset, u32 value) { diff --git a/include/linux/bcma/bcma.h b/include/linux/bcma/bcma.h index 4180eb78d57..4fb6bd7941d 100644 --- a/include/linux/bcma/bcma.h +++ b/include/linux/bcma/bcma.h @@ -345,6 +345,7 @@ extern void bcma_core_set_clockmode(struct bcma_device *core, enum bcma_clkmode clkmode); extern void bcma_core_pll_ctl(struct bcma_device *core, u32 req, u32 status, bool on); +extern u32 bcma_chipco_pll_read(struct bcma_drv_cc *cc, u32 offset); #define BCMA_DMA_TRANSLATION_MASK 0xC0000000 #define BCMA_DMA_TRANSLATION_NONE 0x00000000 #define BCMA_DMA_TRANSLATION_DMA32_CMT 0x40000000 /* Client Mode Translation for 32-bit DMA */ From a5401370c520d573e9d62b3f8f34940c3b798a49 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= Date: Mon, 12 Nov 2012 13:03:21 +0100 Subject: [PATCH 57/96] mtd: prepare place for BCMA NAND flash driver(s) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit BCMA bus can contain NAND flash memory, it's registered in system as platform device. This adds required hooks and place for controler specific drivers. Signed-off-by: Rafał Miłecki Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/Kconfig | 9 ++ drivers/mtd/nand/Makefile | 1 + drivers/mtd/nand/bcm47xxnflash/Makefile | 3 + .../mtd/nand/bcm47xxnflash/bcm47xxnflash.h | 14 +++ drivers/mtd/nand/bcm47xxnflash/main.c | 108 ++++++++++++++++++ 5 files changed, 135 insertions(+) create mode 100644 drivers/mtd/nand/bcm47xxnflash/Makefile create mode 100644 drivers/mtd/nand/bcm47xxnflash/bcm47xxnflash.h create mode 100644 drivers/mtd/nand/bcm47xxnflash/main.c diff --git a/drivers/mtd/nand/Kconfig b/drivers/mtd/nand/Kconfig index a803d9ba55b..3314e92120c 100644 --- a/drivers/mtd/nand/Kconfig +++ b/drivers/mtd/nand/Kconfig @@ -460,6 +460,15 @@ config MTD_NAND_GPMI_NAND block, such as SD card. So pay attention to it when you enable the GPMI. +config MTD_NAND_BCM47XXNFLASH + tristate "R/O support for NAND flash on BCMA bus" + depends on BCMA_NFLASH + help + BCMA bus can have various flash memories attached, they are + registered by bcma as platform devices. This enables driver for + NAND flash memories. For now only read mode for BCM4706 is + implemented. + config MTD_NAND_PLATFORM tristate "Support for generic platform NAND driver" depends on HAS_IOMEM diff --git a/drivers/mtd/nand/Makefile b/drivers/mtd/nand/Makefile index 44fca055336..3c3f215287f 100644 --- a/drivers/mtd/nand/Makefile +++ b/drivers/mtd/nand/Makefile @@ -54,5 +54,6 @@ obj-$(CONFIG_MTD_NAND_RICOH) += r852.o obj-$(CONFIG_MTD_NAND_JZ4740) += jz4740_nand.o obj-$(CONFIG_MTD_NAND_GPMI_NAND) += gpmi-nand/ obj-$(CONFIG_MTD_NAND_XWAY) += xway_nand.o +obj-$(CONFIG_MTD_NAND_BCM47XXNFLASH) += bcm47xxnflash/ nand-objs := nand_base.o nand_bbt.o diff --git a/drivers/mtd/nand/bcm47xxnflash/Makefile b/drivers/mtd/nand/bcm47xxnflash/Makefile new file mode 100644 index 00000000000..1d0693af6e9 --- /dev/null +++ b/drivers/mtd/nand/bcm47xxnflash/Makefile @@ -0,0 +1,3 @@ +bcm47xxnflash-y += main.o + +obj-$(CONFIG_MTD_NAND_BCM47XXNFLASH) += bcm47xxnflash.o diff --git a/drivers/mtd/nand/bcm47xxnflash/bcm47xxnflash.h b/drivers/mtd/nand/bcm47xxnflash/bcm47xxnflash.h new file mode 100644 index 00000000000..2e8864a891e --- /dev/null +++ b/drivers/mtd/nand/bcm47xxnflash/bcm47xxnflash.h @@ -0,0 +1,14 @@ +#ifndef __BCM47XXNFLASH_H +#define __BCM47XXNFLASH_H + +#include +#include + +struct bcm47xxnflash { + struct bcma_drv_cc *cc; + + struct nand_chip nand_chip; + struct mtd_info mtd; +}; + +#endif /* BCM47XXNFLASH */ diff --git a/drivers/mtd/nand/bcm47xxnflash/main.c b/drivers/mtd/nand/bcm47xxnflash/main.c new file mode 100644 index 00000000000..fc9139de4df --- /dev/null +++ b/drivers/mtd/nand/bcm47xxnflash/main.c @@ -0,0 +1,108 @@ +/* + * BCM47XX NAND flash driver + * + * Copyright (C) 2012 Rafał Miłecki + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + */ + +#include +#include +#include +#include +#include + +#include "bcm47xxnflash.h" + +MODULE_DESCRIPTION("NAND flash driver for BCMA bus"); +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Rafał Miłecki"); + +static const char *probes[] = { "bcm47xxpart", NULL }; + +static int bcm47xxnflash_probe(struct platform_device *pdev) +{ + struct bcma_nflash *nflash = dev_get_platdata(&pdev->dev); + struct bcm47xxnflash *b47n; + int err = 0; + + b47n = kzalloc(sizeof(*b47n), GFP_KERNEL); + if (!b47n) { + err = -ENOMEM; + goto out; + } + + b47n->nand_chip.priv = b47n; + b47n->mtd.owner = THIS_MODULE; + b47n->mtd.priv = &b47n->nand_chip; /* Required */ + b47n->cc = container_of(nflash, struct bcma_drv_cc, nflash); + + if (0) { + /* TODO: init device */ + } else { + pr_err("Device not supported\n"); + err = -ENOTSUPP; + } + if (err) { + pr_err("Initialization failed: %d\n", err); + goto err_init; + } + + err = mtd_device_parse_register(&b47n->mtd, probes, NULL, NULL, 0); + if (err) { + pr_err("Failed to register MTD device: %d\n", err); + goto err_dev_reg; + } + + return 0; + +err_dev_reg: +err_init: + kfree(b47n); +out: + return err; +} + +static int __devexit bcm47xxnflash_remove(struct platform_device *pdev) +{ + struct bcma_nflash *nflash = dev_get_platdata(&pdev->dev); + + if (nflash->mtd) + mtd_device_unregister(nflash->mtd); + + return 0; +} + +static struct platform_driver bcm47xxnflash_driver = { + .remove = __devexit_p(bcm47xxnflash_remove), + .driver = { + .name = "bcma_nflash", + .owner = THIS_MODULE, + }, +}; + +static int __init bcm47xxnflash_init(void) +{ + int err; + + /* + * Platform device "bcma_nflash" exists on SoCs and is registered very + * early, it won't be added during runtime (use platform_driver_probe). + */ + err = platform_driver_probe(&bcm47xxnflash_driver, bcm47xxnflash_probe); + if (err) + pr_err("Failed to register serial flash driver: %d\n", err); + + return err; +} + +static void __exit bcm47xxnflash_exit(void) +{ + platform_driver_unregister(&bcm47xxnflash_driver); +} + +module_init(bcm47xxnflash_init); +module_exit(bcm47xxnflash_exit); From 19c0921c842e0aa9ce8c540c9134fd358acc9b28 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= Date: Mon, 12 Nov 2012 13:03:22 +0100 Subject: [PATCH 58/96] mtd: bcm47xxnflash: init NAND on BCM4706 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Rafał Miłecki Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/bcm47xxnflash/Makefile | 1 + drivers/mtd/nand/bcm47xxnflash/ops_bcm4706.c | 109 +++++++++++++++++++ 2 files changed, 110 insertions(+) create mode 100644 drivers/mtd/nand/bcm47xxnflash/ops_bcm4706.c diff --git a/drivers/mtd/nand/bcm47xxnflash/Makefile b/drivers/mtd/nand/bcm47xxnflash/Makefile index 1d0693af6e9..4f688f9655a 100644 --- a/drivers/mtd/nand/bcm47xxnflash/Makefile +++ b/drivers/mtd/nand/bcm47xxnflash/Makefile @@ -1,3 +1,4 @@ bcm47xxnflash-y += main.o +bcm47xxnflash- += ops_bcm4706.o obj-$(CONFIG_MTD_NAND_BCM47XXNFLASH) += bcm47xxnflash.o diff --git a/drivers/mtd/nand/bcm47xxnflash/ops_bcm4706.c b/drivers/mtd/nand/bcm47xxnflash/ops_bcm4706.c new file mode 100644 index 00000000000..ae8a79387c2 --- /dev/null +++ b/drivers/mtd/nand/bcm47xxnflash/ops_bcm4706.c @@ -0,0 +1,109 @@ +/* + * BCM47XX NAND flash driver + * + * Copyright (C) 2012 Rafał Miłecki + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + */ + +#include +#include +#include +#include + +#include "bcm47xxnflash.h" + +/************************************************** + * Various helpers + **************************************************/ + +static inline u8 bcm47xxnflash_ops_bcm4706_ns_to_cycle(u16 ns, u16 clock) +{ + return ((ns * 1000 * clock) / 1000000) + 1; +} + +/************************************************** + * NAND chip ops + **************************************************/ + +/* Default nand_select_chip calls cmd_ctrl, which is not used in BCM4706 */ +static void bcm47xxnflash_ops_bcm4706_select_chip(struct mtd_info *mtd, + int chip) +{ + return; +} + +/************************************************** + * Init + **************************************************/ + +int bcm47xxnflash_ops_bcm4706_init(struct bcm47xxnflash *b47n) +{ + int err; + u32 freq; + u16 clock; + u8 w0, w1, w2, w3, w4; + + unsigned long chipsize; /* MiB */ + u8 tbits, col_bits, col_size, row_bits, row_bsize; + u32 val; + + b47n->nand_chip.select_chip = bcm47xxnflash_ops_bcm4706_select_chip; + b47n->nand_chip.ecc.mode = NAND_ECC_NONE; /* TODO: implement ECC */ + + /* Enable NAND flash access */ + bcma_cc_set32(b47n->cc, BCMA_CC_4706_FLASHSCFG, + BCMA_CC_4706_FLASHSCFG_NF1); + + /* Configure wait counters */ + if (b47n->cc->status & BCMA_CC_CHIPST_4706_PKG_OPTION) { + freq = 100000000; + } else { + freq = bcma_chipco_pll_read(b47n->cc, 4); + freq = (freq * 0xFFF) >> 3; + freq = (freq * 25000000) >> 3; + } + clock = freq / 1000000; + w0 = bcm47xxnflash_ops_bcm4706_ns_to_cycle(15, clock); + w1 = bcm47xxnflash_ops_bcm4706_ns_to_cycle(20, clock); + w2 = bcm47xxnflash_ops_bcm4706_ns_to_cycle(10, clock); + w3 = bcm47xxnflash_ops_bcm4706_ns_to_cycle(10, clock); + w4 = bcm47xxnflash_ops_bcm4706_ns_to_cycle(100, clock); + bcma_cc_write32(b47n->cc, BCMA_CC_NFLASH_WAITCNT0, + (w4 << 24 | w3 << 18 | w2 << 12 | w1 << 6 | w0)); + + /* Scan NAND */ + err = nand_scan(&b47n->mtd, 1); + if (err) { + pr_err("Could not scan NAND flash: %d\n", err); + goto exit; + } + + /* Configure FLASH */ + chipsize = b47n->nand_chip.chipsize >> 20; + tbits = ffs(chipsize); /* find first bit set */ + if (!tbits || tbits != fls(chipsize)) { + pr_err("Invalid flash size: 0x%lX\n", chipsize); + err = -ENOTSUPP; + goto exit; + } + tbits += 19; /* Broadcom increases *index* by 20, we increase *pos* */ + + col_bits = b47n->nand_chip.page_shift + 1; + col_size = (col_bits + 7) / 8; + + row_bits = tbits - col_bits + 1; + row_bsize = (row_bits + 7) / 8; + + val = ((row_bsize - 1) << 6) | ((col_size - 1) << 4) | 2; + bcma_cc_write32(b47n->cc, BCMA_CC_NFLASH_CONF, val); + +exit: + if (err) + bcma_cc_mask32(b47n->cc, BCMA_CC_4706_FLASHSCFG, + ~BCMA_CC_4706_FLASHSCFG_NF1); + return err; +} From 0fbc5991551fa2024de7db79421e9a16ca9fe542 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= Date: Mon, 12 Nov 2012 13:03:23 +0100 Subject: [PATCH 59/96] mtd: bcm47xxnflash: support for NAND_CMD_READID command MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Rafał Miłecki Signed-off-by: Artem Bityutskiy --- .../mtd/nand/bcm47xxnflash/bcm47xxnflash.h | 5 + drivers/mtd/nand/bcm47xxnflash/ops_bcm4706.c | 101 ++++++++++++++++++ 2 files changed, 106 insertions(+) diff --git a/drivers/mtd/nand/bcm47xxnflash/bcm47xxnflash.h b/drivers/mtd/nand/bcm47xxnflash/bcm47xxnflash.h index 2e8864a891e..cc71400de11 100644 --- a/drivers/mtd/nand/bcm47xxnflash/bcm47xxnflash.h +++ b/drivers/mtd/nand/bcm47xxnflash/bcm47xxnflash.h @@ -9,6 +9,11 @@ struct bcm47xxnflash { struct nand_chip nand_chip; struct mtd_info mtd; + + unsigned curr_command; + int curr_column; + + u8 id_data[8]; }; #endif /* BCM47XXNFLASH */ diff --git a/drivers/mtd/nand/bcm47xxnflash/ops_bcm4706.c b/drivers/mtd/nand/bcm47xxnflash/ops_bcm4706.c index ae8a79387c2..7de190e9a78 100644 --- a/drivers/mtd/nand/bcm47xxnflash/ops_bcm4706.c +++ b/drivers/mtd/nand/bcm47xxnflash/ops_bcm4706.c @@ -16,6 +16,10 @@ #include "bcm47xxnflash.h" +/* Broadcom uses 1'000'000 but it seems to be too many. Tests on WNDR4500 has + * shown 164 retries as maxiumum. */ +#define NFLASH_READY_RETRIES 1000 + /************************************************** * Various helpers **************************************************/ @@ -25,6 +29,24 @@ static inline u8 bcm47xxnflash_ops_bcm4706_ns_to_cycle(u16 ns, u16 clock) return ((ns * 1000 * clock) / 1000000) + 1; } +static int bcm47xxnflash_ops_bcm4706_ctl_cmd(struct bcma_drv_cc *cc, u32 code) +{ + int i = 0; + + bcma_cc_write32(cc, BCMA_CC_NFLASH_CTL, 0x80000000 | code); + for (i = 0; i < NFLASH_READY_RETRIES; i++) { + if (!(bcma_cc_read32(cc, BCMA_CC_NFLASH_CTL) & 0x80000000)) { + i = 0; + break; + } + } + if (i) { + pr_err("NFLASH control command not ready!\n"); + return -EBUSY; + } + return 0; +} + /************************************************** * NAND chip ops **************************************************/ @@ -36,6 +58,83 @@ static void bcm47xxnflash_ops_bcm4706_select_chip(struct mtd_info *mtd, return; } +/* + * Default nand_command and nand_command_lp don't match BCM4706 hardware layout. + * For example, reading chip id is performed in a non-standard way. + * Setting column and page is also handled differently, we use a special + * registers of ChipCommon core. Hacking cmd_ctrl to understand and convert + * standard commands would be much more complicated. + */ +static void bcm47xxnflash_ops_bcm4706_cmdfunc(struct mtd_info *mtd, + unsigned command, int column, + int page_addr) +{ + struct nand_chip *nand_chip = (struct nand_chip *)mtd->priv; + struct bcm47xxnflash *b47n = (struct bcm47xxnflash *)nand_chip->priv; + u32 ctlcode; + int i; + + if (column != -1) + b47n->curr_column = column; + + switch (command) { + case NAND_CMD_RESET: + pr_warn("Chip reset not implemented yet\n"); + break; + case NAND_CMD_READID: + ctlcode = 0x40000000 | 0x01000000 | 0x00080000 | 0x00010000; + ctlcode |= NAND_CMD_READID; + if (bcm47xxnflash_ops_bcm4706_ctl_cmd(b47n->cc, ctlcode)) { + pr_err("READID error\n"); + break; + } + + /* + * Reading is specific, last one has to go without 0x40000000 + * bit. We don't know how many reads NAND subsystem is going + * to perform, so cache everything. + */ + for (i = 0; i < ARRAY_SIZE(b47n->id_data); i++) { + ctlcode = 0x40000000 | 0x00100000; + if (i == ARRAY_SIZE(b47n->id_data) - 1) + ctlcode &= ~0x40000000; + if (bcm47xxnflash_ops_bcm4706_ctl_cmd(b47n->cc, + ctlcode)) { + pr_err("READID error\n"); + break; + } + b47n->id_data[i] = + bcma_cc_read32(b47n->cc, BCMA_CC_NFLASH_DATA) + & 0xFF; + } + + break; + default: + pr_err("Command 0x%X unsupported\n", command); + break; + } + b47n->curr_command = command; +} + +static u8 bcm47xxnflash_ops_bcm4706_read_byte(struct mtd_info *mtd) +{ + struct nand_chip *nand_chip = (struct nand_chip *)mtd->priv; + struct bcm47xxnflash *b47n = (struct bcm47xxnflash *)nand_chip->priv; + + switch (b47n->curr_command) { + case NAND_CMD_READID: + if (b47n->curr_column >= ARRAY_SIZE(b47n->id_data)) { + pr_err("Requested invalid id_data: %d\n", + b47n->curr_column); + return 0; + } + return b47n->id_data[b47n->curr_column++]; + } + + pr_err("Invalid command for byte read: 0x%X\n", b47n->curr_command); + return 0; +} + /************************************************** * Init **************************************************/ @@ -52,6 +151,8 @@ int bcm47xxnflash_ops_bcm4706_init(struct bcm47xxnflash *b47n) u32 val; b47n->nand_chip.select_chip = bcm47xxnflash_ops_bcm4706_select_chip; + b47n->nand_chip.cmdfunc = bcm47xxnflash_ops_bcm4706_cmdfunc; + b47n->nand_chip.read_byte = bcm47xxnflash_ops_bcm4706_read_byte; b47n->nand_chip.ecc.mode = NAND_ECC_NONE; /* TODO: implement ECC */ /* Enable NAND flash access */ From 3c01d4cb7576ff79e13ba7d7fb884e63e6f07bbd Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= Date: Mon, 12 Nov 2012 13:03:24 +0100 Subject: [PATCH 60/96] mtd: bcm47xxnflash: implement reading MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Rafał Miłecki Signed-off-by: Artem Bityutskiy --- .../mtd/nand/bcm47xxnflash/bcm47xxnflash.h | 1 + drivers/mtd/nand/bcm47xxnflash/ops_bcm4706.c | 106 ++++++++++++++++++ 2 files changed, 107 insertions(+) diff --git a/drivers/mtd/nand/bcm47xxnflash/bcm47xxnflash.h b/drivers/mtd/nand/bcm47xxnflash/bcm47xxnflash.h index cc71400de11..264aec448fc 100644 --- a/drivers/mtd/nand/bcm47xxnflash/bcm47xxnflash.h +++ b/drivers/mtd/nand/bcm47xxnflash/bcm47xxnflash.h @@ -11,6 +11,7 @@ struct bcm47xxnflash { struct mtd_info mtd; unsigned curr_command; + int curr_page_addr; int curr_column; u8 id_data[8]; diff --git a/drivers/mtd/nand/bcm47xxnflash/ops_bcm4706.c b/drivers/mtd/nand/bcm47xxnflash/ops_bcm4706.c index 7de190e9a78..e42e18208ab 100644 --- a/drivers/mtd/nand/bcm47xxnflash/ops_bcm4706.c +++ b/drivers/mtd/nand/bcm47xxnflash/ops_bcm4706.c @@ -20,6 +20,8 @@ * shown 164 retries as maxiumum. */ #define NFLASH_READY_RETRIES 1000 +#define NFLASH_SECTOR_SIZE 512 + /************************************************** * Various helpers **************************************************/ @@ -47,6 +49,80 @@ static int bcm47xxnflash_ops_bcm4706_ctl_cmd(struct bcma_drv_cc *cc, u32 code) return 0; } +static int bcm47xxnflash_ops_bcm4706_poll(struct bcma_drv_cc *cc) +{ + int i; + + for (i = 0; i < NFLASH_READY_RETRIES; i++) { + if (bcma_cc_read32(cc, BCMA_CC_NFLASH_CTL) & 0x04000000) { + if (bcma_cc_read32(cc, BCMA_CC_NFLASH_CTL) & + BCMA_CC_NFLASH_CTL_ERR) { + pr_err("Error on polling\n"); + return -EBUSY; + } else { + return 0; + } + } + } + + pr_err("Polling timeout!\n"); + return -EBUSY; +} + +/************************************************** + * R/W + **************************************************/ + +static void bcm47xxnflash_ops_bcm4706_read(struct mtd_info *mtd, uint8_t *buf, + int len) +{ + struct nand_chip *nand_chip = (struct nand_chip *)mtd->priv; + struct bcm47xxnflash *b47n = (struct bcm47xxnflash *)nand_chip->priv; + + u32 ctlcode; + u32 *dest = (u32 *)buf; + int i; + int toread; + + BUG_ON(b47n->curr_page_addr & ~nand_chip->pagemask); + /* Don't validate column using nand_chip->page_shift, it may be bigger + * when accessing OOB */ + + while (len) { + /* We can read maximum of 0x200 bytes at once */ + toread = min(len, 0x200); + + /* Set page and column */ + bcma_cc_write32(b47n->cc, BCMA_CC_NFLASH_COL_ADDR, + b47n->curr_column); + bcma_cc_write32(b47n->cc, BCMA_CC_NFLASH_ROW_ADDR, + b47n->curr_page_addr); + + /* Prepare to read */ + ctlcode = 0x40000000 | 0x00080000 | 0x00040000 | 0x00020000 | + 0x00010000; + ctlcode |= NAND_CMD_READSTART << 8; + if (bcm47xxnflash_ops_bcm4706_ctl_cmd(b47n->cc, ctlcode)) + return; + if (bcm47xxnflash_ops_bcm4706_poll(b47n->cc)) + return; + + /* Eventually read some data :) */ + for (i = 0; i < toread; i += 4, dest++) { + ctlcode = 0x40000000 | 0x30000000 | 0x00100000; + if (i == toread - 4) /* Last read goes without that */ + ctlcode &= ~0x40000000; + if (bcm47xxnflash_ops_bcm4706_ctl_cmd(b47n->cc, + ctlcode)) + return; + *dest = bcma_cc_read32(b47n->cc, BCMA_CC_NFLASH_DATA); + } + + b47n->curr_column += toread; + len -= toread; + } +} + /************************************************** * NAND chip ops **************************************************/ @@ -76,6 +152,8 @@ static void bcm47xxnflash_ops_bcm4706_cmdfunc(struct mtd_info *mtd, if (column != -1) b47n->curr_column = column; + if (page_addr != -1) + b47n->curr_page_addr = page_addr; switch (command) { case NAND_CMD_RESET: @@ -109,6 +187,12 @@ static void bcm47xxnflash_ops_bcm4706_cmdfunc(struct mtd_info *mtd, } break; + case NAND_CMD_READ0: + break; + case NAND_CMD_READOOB: + if (page_addr != -1) + b47n->curr_column += mtd->writesize; + break; default: pr_err("Command 0x%X unsupported\n", command); break; @@ -120,6 +204,7 @@ static u8 bcm47xxnflash_ops_bcm4706_read_byte(struct mtd_info *mtd) { struct nand_chip *nand_chip = (struct nand_chip *)mtd->priv; struct bcm47xxnflash *b47n = (struct bcm47xxnflash *)nand_chip->priv; + u32 tmp = 0; switch (b47n->curr_command) { case NAND_CMD_READID: @@ -129,12 +214,31 @@ static u8 bcm47xxnflash_ops_bcm4706_read_byte(struct mtd_info *mtd) return 0; } return b47n->id_data[b47n->curr_column++]; + case NAND_CMD_READOOB: + bcm47xxnflash_ops_bcm4706_read(mtd, (u8 *)&tmp, 4); + return tmp & 0xFF; } pr_err("Invalid command for byte read: 0x%X\n", b47n->curr_command); return 0; } +static void bcm47xxnflash_ops_bcm4706_read_buf(struct mtd_info *mtd, + uint8_t *buf, int len) +{ + struct nand_chip *nand_chip = (struct nand_chip *)mtd->priv; + struct bcm47xxnflash *b47n = (struct bcm47xxnflash *)nand_chip->priv; + + switch (b47n->curr_command) { + case NAND_CMD_READ0: + case NAND_CMD_READOOB: + bcm47xxnflash_ops_bcm4706_read(mtd, buf, len); + return; + } + + pr_err("Invalid command for buf read: 0x%X\n", b47n->curr_command); +} + /************************************************** * Init **************************************************/ @@ -153,6 +257,8 @@ int bcm47xxnflash_ops_bcm4706_init(struct bcm47xxnflash *b47n) b47n->nand_chip.select_chip = bcm47xxnflash_ops_bcm4706_select_chip; b47n->nand_chip.cmdfunc = bcm47xxnflash_ops_bcm4706_cmdfunc; b47n->nand_chip.read_byte = bcm47xxnflash_ops_bcm4706_read_byte; + b47n->nand_chip.read_buf = bcm47xxnflash_ops_bcm4706_read_buf; + b47n->nand_chip.bbt_options = NAND_BBT_USE_FLASH; b47n->nand_chip.ecc.mode = NAND_ECC_NONE; /* TODO: implement ECC */ /* Enable NAND flash access */ From 00940a23475f31870cb777d5017b6f160542f3fd Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= Date: Mon, 12 Nov 2012 13:03:25 +0100 Subject: [PATCH 61/96] mtd: bcm47xxnflash: enable BCM4706 driver MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Rafał Miłecki Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/bcm47xxnflash/Makefile | 2 +- drivers/mtd/nand/bcm47xxnflash/bcm47xxnflash.h | 2 ++ drivers/mtd/nand/bcm47xxnflash/main.c | 4 ++-- 3 files changed, 5 insertions(+), 3 deletions(-) diff --git a/drivers/mtd/nand/bcm47xxnflash/Makefile b/drivers/mtd/nand/bcm47xxnflash/Makefile index 4f688f9655a..f05b119e134 100644 --- a/drivers/mtd/nand/bcm47xxnflash/Makefile +++ b/drivers/mtd/nand/bcm47xxnflash/Makefile @@ -1,4 +1,4 @@ bcm47xxnflash-y += main.o -bcm47xxnflash- += ops_bcm4706.o +bcm47xxnflash-y += ops_bcm4706.o obj-$(CONFIG_MTD_NAND_BCM47XXNFLASH) += bcm47xxnflash.o diff --git a/drivers/mtd/nand/bcm47xxnflash/bcm47xxnflash.h b/drivers/mtd/nand/bcm47xxnflash/bcm47xxnflash.h index 264aec448fc..0bdb2ce4da7 100644 --- a/drivers/mtd/nand/bcm47xxnflash/bcm47xxnflash.h +++ b/drivers/mtd/nand/bcm47xxnflash/bcm47xxnflash.h @@ -17,4 +17,6 @@ struct bcm47xxnflash { u8 id_data[8]; }; +int bcm47xxnflash_ops_bcm4706_init(struct bcm47xxnflash *b47n); + #endif /* BCM47XXNFLASH */ diff --git a/drivers/mtd/nand/bcm47xxnflash/main.c b/drivers/mtd/nand/bcm47xxnflash/main.c index fc9139de4df..2b8b05bec3d 100644 --- a/drivers/mtd/nand/bcm47xxnflash/main.c +++ b/drivers/mtd/nand/bcm47xxnflash/main.c @@ -40,8 +40,8 @@ static int bcm47xxnflash_probe(struct platform_device *pdev) b47n->mtd.priv = &b47n->nand_chip; /* Required */ b47n->cc = container_of(nflash, struct bcma_drv_cc, nflash); - if (0) { - /* TODO: init device */ + if (b47n->cc->core->bus->chipinfo.id == BCMA_CHIP_ID_BCM4706) { + err = bcm47xxnflash_ops_bcm4706_init(b47n); } else { pr_err("Device not supported\n"); err = -ENOTSUPP; From 9b7ef60ce15c5f668c0da30a39ed9b315d3d7ff0 Mon Sep 17 00:00:00 2001 From: Stephen Warren Date: Mon, 12 Nov 2012 12:58:28 -0700 Subject: [PATCH 62/96] mtd: m25p80: add support for the Winbond w25q80bl chip Signed-off-by: Stephen Warren Signed-off-by: Artem Bityutskiy --- drivers/mtd/devices/m25p80.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/mtd/devices/m25p80.c b/drivers/mtd/devices/m25p80.c index 7e2d8f9525b..1518324611a 100644 --- a/drivers/mtd/devices/m25p80.c +++ b/drivers/mtd/devices/m25p80.c @@ -742,6 +742,7 @@ static const struct spi_device_id m25p_ids[] = { { "w25x64", INFO(0xef3017, 0, 64 * 1024, 128, SECT_4K) }, { "w25q64", INFO(0xef4017, 0, 64 * 1024, 128, SECT_4K) }, { "w25q80", INFO(0xef5014, 0, 64 * 1024, 16, SECT_4K) }, + { "w25q80bl", INFO(0xef4014, 0, 64 * 1024, 16, SECT_4K) }, { "w25q256", INFO(0xef4019, 0, 64 * 1024, 512, SECT_4K) }, /* Catalyst / On Semiconductor -- non-JEDEC */ From ab0b00bc6ebcfbff42dedb3bf53f0ece79b27e88 Mon Sep 17 00:00:00 2001 From: Josh Radel Date: Wed, 14 Nov 2012 14:11:32 -0800 Subject: [PATCH 63/96] mtd: ofpart: Replicate mtd cmdline "lk" option with device tree "lock" property The mtd partition command line parser already supports a "lk" option to mask MTD_POWERUP_LOCK. This extends that same functionality to device tree partition specifications. Signed-off-by: Josh Radel Signed-off-by: Artem Bityutskiy --- drivers/mtd/ofpart.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/mtd/ofpart.c b/drivers/mtd/ofpart.c index d9127e2ed80..dbd3aa574ea 100644 --- a/drivers/mtd/ofpart.c +++ b/drivers/mtd/ofpart.c @@ -71,7 +71,10 @@ static int parse_ofpart_partitions(struct mtd_info *master, (*pparts)[i].name = (char *)partname; if (of_get_property(pp, "read-only", &len)) - (*pparts)[i].mask_flags = MTD_WRITEABLE; + (*pparts)[i].mask_flags |= MTD_WRITEABLE; + + if (of_get_property(pp, "lock", &len)) + (*pparts)[i].mask_flags |= MTD_POWERUP_LOCK; i++; } From 8ea9eee903f3acf5aa6bdfb831461aec063b128b Mon Sep 17 00:00:00 2001 From: Alexander Shiyan Date: Sun, 18 Nov 2012 14:43:43 +0400 Subject: [PATCH 64/96] mtd: Drop FORTUNET support The kernel has never contained the symbol SA1100_FORTUNET so the driver never compiled and can be removed safely. Signed-off-by: Alexander Shiyan Signed-off-by: Artem Bityutskiy --- drivers/mtd/maps/Kconfig | 7 - drivers/mtd/maps/Makefile | 1 - drivers/mtd/maps/fortunet.c | 277 ------------------------------------ 3 files changed, 285 deletions(-) delete mode 100644 drivers/mtd/maps/fortunet.c diff --git a/drivers/mtd/maps/Kconfig b/drivers/mtd/maps/Kconfig index 2e47c2ed0a2..a1830701912 100644 --- a/drivers/mtd/maps/Kconfig +++ b/drivers/mtd/maps/Kconfig @@ -365,13 +365,6 @@ config MTD_IXP2000 IXP2000 based board and would like to use the flash chips on it, say 'Y'. -config MTD_FORTUNET - tristate "CFI Flash device mapped on the FortuNet board" - depends on MTD_CFI && SA1100_FORTUNET - help - This enables access to the Flash on the FortuNet board. If you - have such a board, say 'Y'. - config MTD_AUTCPU12 bool "NV-RAM mapping AUTCPU12 board" depends on ARCH_AUTCPU12 diff --git a/drivers/mtd/maps/Makefile b/drivers/mtd/maps/Makefile index deb43e9a1e7..4bd6d0dd850 100644 --- a/drivers/mtd/maps/Makefile +++ b/drivers/mtd/maps/Makefile @@ -40,7 +40,6 @@ obj-$(CONFIG_MTD_SOLUTIONENGINE)+= solutionengine.o obj-$(CONFIG_MTD_PCI) += pci.o obj-$(CONFIG_MTD_AUTCPU12) += autcpu12-nvram.o obj-$(CONFIG_MTD_IMPA7) += impa7.o -obj-$(CONFIG_MTD_FORTUNET) += fortunet.o obj-$(CONFIG_MTD_UCLINUX) += uclinux.o obj-$(CONFIG_MTD_NETtel) += nettel.o obj-$(CONFIG_MTD_SCB2_FLASH) += scb2_flash.o diff --git a/drivers/mtd/maps/fortunet.c b/drivers/mtd/maps/fortunet.c deleted file mode 100644 index 956e2e4f30e..00000000000 --- a/drivers/mtd/maps/fortunet.c +++ /dev/null @@ -1,277 +0,0 @@ -/* fortunet.c memory map - * - */ - -#include -#include -#include -#include -#include - -#include -#include -#include - -#include - -#define MAX_NUM_REGIONS 4 -#define MAX_NUM_PARTITIONS 8 - -#define DEF_WINDOW_ADDR_PHY 0x00000000 -#define DEF_WINDOW_SIZE 0x00800000 // 8 Mega Bytes - -#define MTD_FORTUNET_PK "MTD FortuNet: " - -#define MAX_NAME_SIZE 128 - -struct map_region -{ - int window_addr_physical; - int altbankwidth; - struct map_info map_info; - struct mtd_info *mymtd; - struct mtd_partition parts[MAX_NUM_PARTITIONS]; - char map_name[MAX_NAME_SIZE]; - char parts_name[MAX_NUM_PARTITIONS][MAX_NAME_SIZE]; -}; - -static struct map_region map_regions[MAX_NUM_REGIONS]; -static int map_regions_set[MAX_NUM_REGIONS] = {0,0,0,0}; -static int map_regions_parts[MAX_NUM_REGIONS] = {0,0,0,0}; - - - -struct map_info default_map = { - .size = DEF_WINDOW_SIZE, - .bankwidth = 4, -}; - -static char * __init get_string_option(char *dest,int dest_size,char *sor) -{ - if(!dest_size) - return sor; - dest_size--; - while(*sor) - { - if(*sor==',') - { - sor++; - break; - } - else if(*sor=='\"') - { - sor++; - while(*sor) - { - if(*sor=='\"') - { - sor++; - break; - } - *dest = *sor; - dest++; - sor++; - dest_size--; - if(!dest_size) - { - *dest = 0; - return sor; - } - } - } - else - { - *dest = *sor; - dest++; - sor++; - dest_size--; - if(!dest_size) - { - *dest = 0; - return sor; - } - } - } - *dest = 0; - return sor; -} - -static int __init MTD_New_Region(char *line) -{ - char string[MAX_NAME_SIZE]; - int params[6]; - get_options (get_string_option(string,sizeof(string),line),6,params); - if(params[0]<1) - { - printk(MTD_FORTUNET_PK "Bad parameters for MTD Region " - " name,region-number[,base,size,bankwidth,altbankwidth]\n"); - return 1; - } - if((params[1]<0)||(params[1]>=MAX_NUM_REGIONS)) - { - printk(MTD_FORTUNET_PK "Bad region index of %d only have 0..%u regions\n", - params[1],MAX_NUM_REGIONS-1); - return 1; - } - memset(&map_regions[params[1]],0,sizeof(map_regions[params[1]])); - memcpy(&map_regions[params[1]].map_info, - &default_map,sizeof(map_regions[params[1]].map_info)); - map_regions_set[params[1]] = 1; - map_regions[params[1]].window_addr_physical = DEF_WINDOW_ADDR_PHY; - map_regions[params[1]].altbankwidth = 2; - map_regions[params[1]].mymtd = NULL; - map_regions[params[1]].map_info.name = map_regions[params[1]].map_name; - strcpy(map_regions[params[1]].map_info.name,string); - if(params[0]>1) - { - map_regions[params[1]].window_addr_physical = params[2]; - } - if(params[0]>2) - { - map_regions[params[1]].map_info.size = params[3]; - } - if(params[0]>3) - { - map_regions[params[1]].map_info.bankwidth = params[4]; - } - if(params[0]>4) - { - map_regions[params[1]].altbankwidth = params[5]; - } - return 1; -} - -static int __init MTD_New_Partition(char *line) -{ - char string[MAX_NAME_SIZE]; - int params[4]; - get_options (get_string_option(string,sizeof(string),line),4,params); - if(params[0]<3) - { - printk(MTD_FORTUNET_PK "Bad parameters for MTD Partition " - " name,region-number,size,offset\n"); - return 1; - } - if((params[1]<0)||(params[1]>=MAX_NUM_REGIONS)) - { - printk(MTD_FORTUNET_PK "Bad region index of %d only have 0..%u regions\n", - params[1],MAX_NUM_REGIONS-1); - return 1; - } - if(map_regions_parts[params[1]]>=MAX_NUM_PARTITIONS) - { - printk(MTD_FORTUNET_PK "Out of space for partition in this region\n"); - return 1; - } - map_regions[params[1]].parts[map_regions_parts[params[1]]].name = - map_regions[params[1]]. parts_name[map_regions_parts[params[1]]]; - strcpy(map_regions[params[1]].parts[map_regions_parts[params[1]]].name,string); - map_regions[params[1]].parts[map_regions_parts[params[1]]].size = - params[2]; - map_regions[params[1]].parts[map_regions_parts[params[1]]].offset = - params[3]; - map_regions[params[1]].parts[map_regions_parts[params[1]]].mask_flags = 0; - map_regions_parts[params[1]]++; - return 1; -} - -__setup("MTD_Region=", MTD_New_Region); -__setup("MTD_Partition=", MTD_New_Partition); - -/* Backwards-spelling-compatibility */ -__setup("MTD_Partion=", MTD_New_Partition); - -static int __init init_fortunet(void) -{ - int ix,iy; - for(iy=ix=0;ixowner = THIS_MODULE; - mtd_device_register(map_regions[ix].mymtd, - map_regions[ix].parts, - map_regions_parts[ix]); - } - } - if(iy) - return 0; - return -ENXIO; -} - -static void __exit cleanup_fortunet(void) -{ - int ix; - for(ix=0;ix Date: Mon, 19 Nov 2012 13:21:24 -0500 Subject: [PATCH 65/96] mtd: remove use of __devexit_p CONFIG_HOTPLUG is going away as an option so __devexit_p is no longer needed. Signed-off-by: Bill Pemberton Signed-off-by: Artem Bityutskiy --- drivers/mtd/devices/bcm47xxsflash.c | 2 +- drivers/mtd/devices/m25p80.c | 2 +- drivers/mtd/devices/mtd_dataflash.c | 2 +- drivers/mtd/devices/spear_smi.c | 2 +- drivers/mtd/devices/sst25l.c | 2 +- drivers/mtd/maps/autcpu12-nvram.c | 2 +- drivers/mtd/maps/bfin-async-flash.c | 2 +- drivers/mtd/maps/gpio-addr-flash.c | 2 +- drivers/mtd/maps/intel_vr_nor.c | 2 +- drivers/mtd/maps/lantiq-flash.c | 2 +- drivers/mtd/maps/latch-addr-flash.c | 2 +- drivers/mtd/maps/pci.c | 2 +- drivers/mtd/maps/pismo.c | 2 +- drivers/mtd/maps/pxa2xx-flash.c | 2 +- drivers/mtd/maps/scb2_flash.c | 2 +- drivers/mtd/maps/sun_uflash.c | 2 +- drivers/mtd/maps/vmu-flash.c | 2 +- drivers/mtd/nand/ams-delta.c | 2 +- drivers/mtd/nand/au1550nd.c | 2 +- drivers/mtd/nand/bf5xx_nand.c | 2 +- drivers/mtd/nand/cafe_nand.c | 2 +- drivers/mtd/nand/denali_dt.c | 2 +- drivers/mtd/nand/fsl_upm.c | 2 +- drivers/mtd/nand/gpmi-nand/gpmi-nand.c | 2 +- drivers/mtd/nand/jz4740_nand.c | 2 +- drivers/mtd/nand/lpc32xx_mlc.c | 2 +- drivers/mtd/nand/lpc32xx_slc.c | 2 +- drivers/mtd/nand/mpc5121_nfc.c | 2 +- drivers/mtd/nand/mxc_nand.c | 2 +- drivers/mtd/nand/ndfc.c | 2 +- drivers/mtd/nand/nuc900_nand.c | 2 +- drivers/mtd/nand/orion_nand.c | 2 +- drivers/mtd/nand/plat_nand.c | 2 +- drivers/mtd/nand/sharpsl.c | 2 +- drivers/mtd/nand/socrates_nand.c | 2 +- drivers/mtd/onenand/generic.c | 2 +- drivers/mtd/onenand/omap2.c | 2 +- drivers/mtd/onenand/samsung.c | 2 +- 38 files changed, 38 insertions(+), 38 deletions(-) diff --git a/drivers/mtd/devices/bcm47xxsflash.c b/drivers/mtd/devices/bcm47xxsflash.c index 2dc5a6f3fd5..113aced6499 100644 --- a/drivers/mtd/devices/bcm47xxsflash.c +++ b/drivers/mtd/devices/bcm47xxsflash.c @@ -77,7 +77,7 @@ static int __devexit bcm47xxsflash_remove(struct platform_device *pdev) } static struct platform_driver bcma_sflash_driver = { - .remove = __devexit_p(bcm47xxsflash_remove), + .remove = bcm47xxsflash_remove, .driver = { .name = "bcma_sflash", .owner = THIS_MODULE, diff --git a/drivers/mtd/devices/m25p80.c b/drivers/mtd/devices/m25p80.c index 1518324611a..bd2d91254c6 100644 --- a/drivers/mtd/devices/m25p80.c +++ b/drivers/mtd/devices/m25p80.c @@ -994,7 +994,7 @@ static struct spi_driver m25p80_driver = { }, .id_table = m25p_ids, .probe = m25p_probe, - .remove = __devexit_p(m25p_remove), + .remove = m25p_remove, /* REVISIT: many of these chips have deep power-down modes, which * should clearly be entered on suspend() to minimize power use. diff --git a/drivers/mtd/devices/mtd_dataflash.c b/drivers/mtd/devices/mtd_dataflash.c index 928fb0e6d73..23ccc36840f 100644 --- a/drivers/mtd/devices/mtd_dataflash.c +++ b/drivers/mtd/devices/mtd_dataflash.c @@ -920,7 +920,7 @@ static struct spi_driver dataflash_driver = { }, .probe = dataflash_probe, - .remove = __devexit_p(dataflash_remove), + .remove = dataflash_remove, /* FIXME: investigate suspend and resume... */ }; diff --git a/drivers/mtd/devices/spear_smi.c b/drivers/mtd/devices/spear_smi.c index 39e95673cdd..e27737c9121 100644 --- a/drivers/mtd/devices/spear_smi.c +++ b/drivers/mtd/devices/spear_smi.c @@ -1092,7 +1092,7 @@ static struct platform_driver spear_smi_driver = { #endif }, .probe = spear_smi_probe, - .remove = __devexit_p(spear_smi_remove), + .remove = spear_smi_remove, }; module_platform_driver(spear_smi_driver); diff --git a/drivers/mtd/devices/sst25l.c b/drivers/mtd/devices/sst25l.c index ab8a2f4c8d6..9ebf86d8faa 100644 --- a/drivers/mtd/devices/sst25l.c +++ b/drivers/mtd/devices/sst25l.c @@ -428,7 +428,7 @@ static struct spi_driver sst25l_driver = { .owner = THIS_MODULE, }, .probe = sst25l_probe, - .remove = __devexit_p(sst25l_remove), + .remove = sst25l_remove, }; module_spi_driver(sst25l_driver); diff --git a/drivers/mtd/maps/autcpu12-nvram.c b/drivers/mtd/maps/autcpu12-nvram.c index 76fb594bb1d..ca0313db6fe 100644 --- a/drivers/mtd/maps/autcpu12-nvram.c +++ b/drivers/mtd/maps/autcpu12-nvram.c @@ -121,7 +121,7 @@ static struct platform_driver autcpu12_nvram_driver = { .owner = THIS_MODULE, }, .probe = autcpu12_nvram_probe, - .remove = __devexit_p(autcpu12_nvram_remove), + .remove = autcpu12_nvram_remove, }; module_platform_driver(autcpu12_nvram_driver); diff --git a/drivers/mtd/maps/bfin-async-flash.c b/drivers/mtd/maps/bfin-async-flash.c index ef5cde84a8b..340e8a26054 100644 --- a/drivers/mtd/maps/bfin-async-flash.c +++ b/drivers/mtd/maps/bfin-async-flash.c @@ -184,7 +184,7 @@ static int __devexit bfin_flash_remove(struct platform_device *pdev) static struct platform_driver bfin_flash_driver = { .probe = bfin_flash_probe, - .remove = __devexit_p(bfin_flash_remove), + .remove = bfin_flash_remove, .driver = { .name = DRIVER_NAME, }, diff --git a/drivers/mtd/maps/gpio-addr-flash.c b/drivers/mtd/maps/gpio-addr-flash.c index e4de96ba52b..670af9afa78 100644 --- a/drivers/mtd/maps/gpio-addr-flash.c +++ b/drivers/mtd/maps/gpio-addr-flash.c @@ -273,7 +273,7 @@ static int __devexit gpio_flash_remove(struct platform_device *pdev) static struct platform_driver gpio_flash_driver = { .probe = gpio_flash_probe, - .remove = __devexit_p(gpio_flash_remove), + .remove = gpio_flash_remove, .driver = { .name = DRIVER_NAME, }, diff --git a/drivers/mtd/maps/intel_vr_nor.c b/drivers/mtd/maps/intel_vr_nor.c index 93f03175c82..f6185d4c6ba 100644 --- a/drivers/mtd/maps/intel_vr_nor.c +++ b/drivers/mtd/maps/intel_vr_nor.c @@ -256,7 +256,7 @@ vr_nor_pci_probe(struct pci_dev *dev, const struct pci_device_id *id) static struct pci_driver vr_nor_pci_driver = { .name = DRV_NAME, .probe = vr_nor_pci_probe, - .remove = __devexit_p(vr_nor_pci_remove), + .remove = vr_nor_pci_remove, .id_table = vr_nor_pci_ids, }; diff --git a/drivers/mtd/maps/lantiq-flash.c b/drivers/mtd/maps/lantiq-flash.c index c03456f1700..4c032f16813 100644 --- a/drivers/mtd/maps/lantiq-flash.c +++ b/drivers/mtd/maps/lantiq-flash.c @@ -209,7 +209,7 @@ MODULE_DEVICE_TABLE(of, ltq_mtd_match); static struct platform_driver ltq_mtd_driver = { .probe = ltq_mtd_probe, - .remove = __devexit_p(ltq_mtd_remove), + .remove = ltq_mtd_remove, .driver = { .name = "ltq-nor", .owner = THIS_MODULE, diff --git a/drivers/mtd/maps/latch-addr-flash.c b/drivers/mtd/maps/latch-addr-flash.c index 3c7ad17fca7..962a76a283a 100644 --- a/drivers/mtd/maps/latch-addr-flash.c +++ b/drivers/mtd/maps/latch-addr-flash.c @@ -218,7 +218,7 @@ done: static struct platform_driver latch_addr_flash_driver = { .probe = latch_addr_flash_probe, - .remove = __devexit_p(latch_addr_flash_remove), + .remove = latch_addr_flash_remove, .driver = { .name = DRIVER_NAME, }, diff --git a/drivers/mtd/maps/pci.c b/drivers/mtd/maps/pci.c index 1c30c1a307f..ddc8c0c56d0 100644 --- a/drivers/mtd/maps/pci.c +++ b/drivers/mtd/maps/pci.c @@ -326,7 +326,7 @@ mtd_pci_remove(struct pci_dev *dev) static struct pci_driver mtd_pci_driver = { .name = "MTD PCI", .probe = mtd_pci_probe, - .remove = __devexit_p(mtd_pci_remove), + .remove = mtd_pci_remove, .id_table = mtd_pci_ids, }; diff --git a/drivers/mtd/maps/pismo.c b/drivers/mtd/maps/pismo.c index 65bd1cd4d62..9f4e5947c99 100644 --- a/drivers/mtd/maps/pismo.c +++ b/drivers/mtd/maps/pismo.c @@ -267,7 +267,7 @@ static struct i2c_driver pismo_driver = { .owner = THIS_MODULE, }, .probe = pismo_probe, - .remove = __devexit_p(pismo_remove), + .remove = pismo_remove, .id_table = pismo_id, }; diff --git a/drivers/mtd/maps/pxa2xx-flash.c b/drivers/mtd/maps/pxa2xx-flash.c index 81884c27740..f913a1c3f2b 100644 --- a/drivers/mtd/maps/pxa2xx-flash.c +++ b/drivers/mtd/maps/pxa2xx-flash.c @@ -139,7 +139,7 @@ static struct platform_driver pxa2xx_flash_driver = { .owner = THIS_MODULE, }, .probe = pxa2xx_flash_probe, - .remove = __devexit_p(pxa2xx_flash_remove), + .remove = pxa2xx_flash_remove, .shutdown = pxa2xx_flash_shutdown, }; diff --git a/drivers/mtd/maps/scb2_flash.c b/drivers/mtd/maps/scb2_flash.c index 9dcbc684abd..d527608e5d2 100644 --- a/drivers/mtd/maps/scb2_flash.c +++ b/drivers/mtd/maps/scb2_flash.c @@ -231,7 +231,7 @@ static struct pci_driver scb2_flash_driver = { .name = "Intel SCB2 BIOS Flash", .id_table = scb2_flash_pci_ids, .probe = scb2_flash_probe, - .remove = __devexit_p(scb2_flash_remove), + .remove = scb2_flash_remove, }; module_pci_driver(scb2_flash_driver); diff --git a/drivers/mtd/maps/sun_uflash.c b/drivers/mtd/maps/sun_uflash.c index 175e537b444..1c03ca7c4a7 100644 --- a/drivers/mtd/maps/sun_uflash.c +++ b/drivers/mtd/maps/sun_uflash.c @@ -155,7 +155,7 @@ static struct platform_driver uflash_driver = { .of_match_table = uflash_match, }, .probe = uflash_probe, - .remove = __devexit_p(uflash_remove), + .remove = uflash_remove, }; module_platform_driver(uflash_driver); diff --git a/drivers/mtd/maps/vmu-flash.c b/drivers/mtd/maps/vmu-flash.c index 2e2b0945edc..5a83a264eb8 100644 --- a/drivers/mtd/maps/vmu-flash.c +++ b/drivers/mtd/maps/vmu-flash.c @@ -802,7 +802,7 @@ static struct maple_driver vmu_flash_driver = { .drv = { .name = "Dreamcast_visual_memory", .probe = probe_maple_vmu, - .remove = __devexit_p(remove_maple_vmu), + .remove = remove_maple_vmu, }, }; diff --git a/drivers/mtd/nand/ams-delta.c b/drivers/mtd/nand/ams-delta.c index 9e7723aa7ac..51dba43e287 100644 --- a/drivers/mtd/nand/ams-delta.c +++ b/drivers/mtd/nand/ams-delta.c @@ -289,7 +289,7 @@ static int __devexit ams_delta_cleanup(struct platform_device *pdev) static struct platform_driver ams_delta_nand_driver = { .probe = ams_delta_init, - .remove = __devexit_p(ams_delta_cleanup), + .remove = ams_delta_cleanup, .driver = { .name = "ams-delta-nand", .owner = THIS_MODULE, diff --git a/drivers/mtd/nand/au1550nd.c b/drivers/mtd/nand/au1550nd.c index 5c47b200045..d84af46ccc8 100644 --- a/drivers/mtd/nand/au1550nd.c +++ b/drivers/mtd/nand/au1550nd.c @@ -509,7 +509,7 @@ static struct platform_driver au1550nd_driver = { .owner = THIS_MODULE, }, .probe = au1550nd_probe, - .remove = __devexit_p(au1550nd_remove), + .remove = au1550nd_remove, }; module_platform_driver(au1550nd_driver); diff --git a/drivers/mtd/nand/bf5xx_nand.c b/drivers/mtd/nand/bf5xx_nand.c index ab0caa74eb4..0afd4ac3424 100644 --- a/drivers/mtd/nand/bf5xx_nand.c +++ b/drivers/mtd/nand/bf5xx_nand.c @@ -865,7 +865,7 @@ static int bf5xx_nand_resume(struct platform_device *dev) /* driver device registration */ static struct platform_driver bf5xx_nand_driver = { .probe = bf5xx_nand_probe, - .remove = __devexit_p(bf5xx_nand_remove), + .remove = bf5xx_nand_remove, .suspend = bf5xx_nand_suspend, .resume = bf5xx_nand_resume, .driver = { diff --git a/drivers/mtd/nand/cafe_nand.c b/drivers/mtd/nand/cafe_nand.c index 2bb7170502c..1b62f043bf7 100644 --- a/drivers/mtd/nand/cafe_nand.c +++ b/drivers/mtd/nand/cafe_nand.c @@ -887,7 +887,7 @@ static struct pci_driver cafe_nand_pci_driver = { .name = "CAFÉ NAND", .id_table = cafe_nand_tbl, .probe = cafe_nand_probe, - .remove = __devexit_p(cafe_nand_remove), + .remove = cafe_nand_remove, .resume = cafe_nand_resume, }; diff --git a/drivers/mtd/nand/denali_dt.c b/drivers/mtd/nand/denali_dt.c index fbabbaa0437..445de7c8bb5 100644 --- a/drivers/mtd/nand/denali_dt.c +++ b/drivers/mtd/nand/denali_dt.c @@ -142,7 +142,7 @@ static int __devexit denali_dt_remove(struct platform_device *ofdev) static struct platform_driver denali_dt_driver = { .probe = denali_dt_probe, - .remove = __devexit_p(denali_dt_remove), + .remove = denali_dt_remove, .driver = { .name = "denali-nand-dt", .owner = THIS_MODULE, diff --git a/drivers/mtd/nand/fsl_upm.c b/drivers/mtd/nand/fsl_upm.c index 45df542b9c6..b40661d7160 100644 --- a/drivers/mtd/nand/fsl_upm.c +++ b/drivers/mtd/nand/fsl_upm.c @@ -350,7 +350,7 @@ static struct platform_driver of_fun_driver = { .of_match_table = of_fun_match, }, .probe = fun_probe, - .remove = __devexit_p(fun_remove), + .remove = fun_remove, }; module_platform_driver(of_fun_driver); diff --git a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c index d37619882fa..7ce6d01a3c9 100644 --- a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c +++ b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c @@ -1692,7 +1692,7 @@ static struct platform_driver gpmi_nand_driver = { .of_match_table = gpmi_nand_id_table, }, .probe = gpmi_nand_probe, - .remove = __devexit_p(gpmi_nand_remove), + .remove = gpmi_nand_remove, .id_table = gpmi_ids, }; module_platform_driver(gpmi_nand_driver); diff --git a/drivers/mtd/nand/jz4740_nand.c b/drivers/mtd/nand/jz4740_nand.c index 100b6775e17..2552fe28d05 100644 --- a/drivers/mtd/nand/jz4740_nand.c +++ b/drivers/mtd/nand/jz4740_nand.c @@ -573,7 +573,7 @@ static int __devexit jz_nand_remove(struct platform_device *pdev) static struct platform_driver jz_nand_driver = { .probe = jz_nand_probe, - .remove = __devexit_p(jz_nand_remove), + .remove = jz_nand_remove, .driver = { .name = "jz4740-nand", .owner = THIS_MODULE, diff --git a/drivers/mtd/nand/lpc32xx_mlc.c b/drivers/mtd/nand/lpc32xx_mlc.c index c29b7ac1f6a..311564259d2 100644 --- a/drivers/mtd/nand/lpc32xx_mlc.c +++ b/drivers/mtd/nand/lpc32xx_mlc.c @@ -907,7 +907,7 @@ MODULE_DEVICE_TABLE(of, lpc32xx_nand_match); static struct platform_driver lpc32xx_nand_driver = { .probe = lpc32xx_nand_probe, - .remove = __devexit_p(lpc32xx_nand_remove), + .remove = lpc32xx_nand_remove, .resume = lpc32xx_nand_resume, .suspend = lpc32xx_nand_suspend, .driver = { diff --git a/drivers/mtd/nand/lpc32xx_slc.c b/drivers/mtd/nand/lpc32xx_slc.c index 32409c45d47..9e291b71a8c 100644 --- a/drivers/mtd/nand/lpc32xx_slc.c +++ b/drivers/mtd/nand/lpc32xx_slc.c @@ -1021,7 +1021,7 @@ MODULE_DEVICE_TABLE(of, lpc32xx_nand_match); static struct platform_driver lpc32xx_nand_driver = { .probe = lpc32xx_nand_probe, - .remove = __devexit_p(lpc32xx_nand_remove), + .remove = lpc32xx_nand_remove, .resume = lpc32xx_nand_resume, .suspend = lpc32xx_nand_suspend, .driver = { diff --git a/drivers/mtd/nand/mpc5121_nfc.c b/drivers/mtd/nand/mpc5121_nfc.c index f776c8577b8..17fe0c942fb 100644 --- a/drivers/mtd/nand/mpc5121_nfc.c +++ b/drivers/mtd/nand/mpc5121_nfc.c @@ -848,7 +848,7 @@ static struct of_device_id mpc5121_nfc_match[] __devinitdata = { static struct platform_driver mpc5121_nfc_driver = { .probe = mpc5121_nfc_probe, - .remove = __devexit_p(mpc5121_nfc_remove), + .remove = mpc5121_nfc_remove, .driver = { .name = DRV_NAME, .owner = THIS_MODULE, diff --git a/drivers/mtd/nand/mxc_nand.c b/drivers/mtd/nand/mxc_nand.c index 72e31d86030..a4caf640a30 100644 --- a/drivers/mtd/nand/mxc_nand.c +++ b/drivers/mtd/nand/mxc_nand.c @@ -1556,7 +1556,7 @@ static struct platform_driver mxcnd_driver = { .of_match_table = of_match_ptr(mxcnd_dt_ids), }, .probe = mxcnd_probe, - .remove = __devexit_p(mxcnd_remove), + .remove = mxcnd_remove, }; module_platform_driver(mxcnd_driver); diff --git a/drivers/mtd/nand/ndfc.c b/drivers/mtd/nand/ndfc.c index 5fd3f010e3a..32e6bef480d 100644 --- a/drivers/mtd/nand/ndfc.c +++ b/drivers/mtd/nand/ndfc.c @@ -279,7 +279,7 @@ static struct platform_driver ndfc_driver = { .of_match_table = ndfc_match, }, .probe = ndfc_probe, - .remove = __devexit_p(ndfc_remove), + .remove = ndfc_remove, }; module_platform_driver(ndfc_driver); diff --git a/drivers/mtd/nand/nuc900_nand.c b/drivers/mtd/nand/nuc900_nand.c index 94dc46bc118..eed134c5532 100644 --- a/drivers/mtd/nand/nuc900_nand.c +++ b/drivers/mtd/nand/nuc900_nand.c @@ -340,7 +340,7 @@ static int __devexit nuc900_nand_remove(struct platform_device *pdev) static struct platform_driver nuc900_nand_driver = { .probe = nuc900_nand_probe, - .remove = __devexit_p(nuc900_nand_remove), + .remove = nuc900_nand_remove, .driver = { .name = "nuc900-fmi", .owner = THIS_MODULE, diff --git a/drivers/mtd/nand/orion_nand.c b/drivers/mtd/nand/orion_nand.c index aefaf8cd31e..e6b296dcb12 100644 --- a/drivers/mtd/nand/orion_nand.c +++ b/drivers/mtd/nand/orion_nand.c @@ -223,7 +223,7 @@ static struct of_device_id orion_nand_of_match_table[] = { #endif static struct platform_driver orion_nand_driver = { - .remove = __devexit_p(orion_nand_remove), + .remove = orion_nand_remove, .driver = { .name = "orion_nand", .owner = THIS_MODULE, diff --git a/drivers/mtd/nand/plat_nand.c b/drivers/mtd/nand/plat_nand.c index a47ee68a0cf..95a1dba150d 100644 --- a/drivers/mtd/nand/plat_nand.c +++ b/drivers/mtd/nand/plat_nand.c @@ -160,7 +160,7 @@ MODULE_DEVICE_TABLE(of, plat_nand_match); static struct platform_driver plat_nand_driver = { .probe = plat_nand_probe, - .remove = __devexit_p(plat_nand_remove), + .remove = plat_nand_remove, .driver = { .name = "gen_nand", .owner = THIS_MODULE, diff --git a/drivers/mtd/nand/sharpsl.c b/drivers/mtd/nand/sharpsl.c index 3421e3762a5..541fd511762 100644 --- a/drivers/mtd/nand/sharpsl.c +++ b/drivers/mtd/nand/sharpsl.c @@ -228,7 +228,7 @@ static struct platform_driver sharpsl_nand_driver = { .owner = THIS_MODULE, }, .probe = sharpsl_nand_probe, - .remove = __devexit_p(sharpsl_nand_remove), + .remove = sharpsl_nand_remove, }; module_platform_driver(sharpsl_nand_driver); diff --git a/drivers/mtd/nand/socrates_nand.c b/drivers/mtd/nand/socrates_nand.c index f3f28fafbf7..78b1a040b88 100644 --- a/drivers/mtd/nand/socrates_nand.c +++ b/drivers/mtd/nand/socrates_nand.c @@ -251,7 +251,7 @@ static struct platform_driver socrates_nand_driver = { .of_match_table = socrates_nand_match, }, .probe = socrates_nand_probe, - .remove = __devexit_p(socrates_nand_remove), + .remove = socrates_nand_remove, }; module_platform_driver(socrates_nand_driver); diff --git a/drivers/mtd/onenand/generic.c b/drivers/mtd/onenand/generic.c index 1c4f97c63e6..27aa44a6ec2 100644 --- a/drivers/mtd/onenand/generic.c +++ b/drivers/mtd/onenand/generic.c @@ -112,7 +112,7 @@ static struct platform_driver generic_onenand_driver = { .owner = THIS_MODULE, }, .probe = generic_onenand_probe, - .remove = __devexit_p(generic_onenand_remove), + .remove = generic_onenand_remove, }; module_platform_driver(generic_onenand_driver); diff --git a/drivers/mtd/onenand/omap2.c b/drivers/mtd/onenand/omap2.c index 1961be98517..73dac4c64a9 100644 --- a/drivers/mtd/onenand/omap2.c +++ b/drivers/mtd/onenand/omap2.c @@ -811,7 +811,7 @@ static int __devexit omap2_onenand_remove(struct platform_device *pdev) static struct platform_driver omap2_onenand_driver = { .probe = omap2_onenand_probe, - .remove = __devexit_p(omap2_onenand_remove), + .remove = omap2_onenand_remove, .shutdown = omap2_onenand_shutdown, .driver = { .name = DRIVER_NAME, diff --git a/drivers/mtd/onenand/samsung.c b/drivers/mtd/onenand/samsung.c index 8e4b3f2742b..3d462cbcdbe 100644 --- a/drivers/mtd/onenand/samsung.c +++ b/drivers/mtd/onenand/samsung.c @@ -1130,7 +1130,7 @@ static struct platform_driver s3c_onenand_driver = { }, .id_table = s3c_onenand_driver_ids, .probe = s3c_onenand_probe, - .remove = __devexit_p(s3c_onenand_remove), + .remove = s3c_onenand_remove, }; module_platform_driver(s3c_onenand_driver); From 06f25510692385ed4dadd23f7d3d064d1ab11c2d Mon Sep 17 00:00:00 2001 From: Bill Pemberton Date: Mon, 19 Nov 2012 13:23:07 -0500 Subject: [PATCH 66/96] mtd: remove use of __devinit CONFIG_HOTPLUG is going away as an option so __devinit is no longer needed. Signed-off-by: Bill Pemberton Signed-off-by: Artem Bityutskiy --- drivers/mtd/devices/m25p80.c | 4 ++-- drivers/mtd/devices/mtd_dataflash.c | 8 ++++---- drivers/mtd/devices/spear_smi.c | 6 +++--- drivers/mtd/devices/sst25l.c | 4 ++-- drivers/mtd/maps/amd76xrom.c | 2 +- drivers/mtd/maps/autcpu12-nvram.c | 2 +- drivers/mtd/maps/bfin-async-flash.c | 2 +- drivers/mtd/maps/ck804xrom.c | 2 +- drivers/mtd/maps/esb2rom.c | 2 +- drivers/mtd/maps/gpio-addr-flash.c | 2 +- drivers/mtd/maps/ichxrom.c | 2 +- drivers/mtd/maps/intel_vr_nor.c | 8 ++++---- drivers/mtd/maps/lantiq-flash.c | 2 +- drivers/mtd/maps/latch-addr-flash.c | 2 +- drivers/mtd/maps/pci.c | 2 +- drivers/mtd/maps/physmap_of.c | 8 ++++---- drivers/mtd/maps/pismo.c | 14 +++++++------- drivers/mtd/maps/pxa2xx-flash.c | 2 +- drivers/mtd/maps/sa1100-flash.c | 5 ++--- drivers/mtd/maps/scb2_flash.c | 4 ++-- drivers/mtd/maps/sun_uflash.c | 2 +- drivers/mtd/maps/vmu-flash.c | 4 ++-- drivers/mtd/nand/ams-delta.c | 2 +- drivers/mtd/nand/atmel_nand.c | 12 ++++++------ drivers/mtd/nand/au1550nd.c | 4 ++-- drivers/mtd/nand/bf5xx_nand.c | 4 ++-- drivers/mtd/nand/cafe_nand.c | 8 ++++---- drivers/mtd/nand/denali_dt.c | 2 +- drivers/mtd/nand/denali_pci.c | 2 +- drivers/mtd/nand/fsl_elbc_nand.c | 2 +- drivers/mtd/nand/fsl_ifc_nand.c | 2 +- drivers/mtd/nand/fsl_upm.c | 4 ++-- drivers/mtd/nand/fsmc_nand.c | 4 ++-- drivers/mtd/nand/gpio.c | 2 +- drivers/mtd/nand/gpmi-nand/gpmi-nand.c | 16 ++++++++-------- drivers/mtd/nand/jz4740_nand.c | 4 ++-- drivers/mtd/nand/lpc32xx_mlc.c | 2 +- drivers/mtd/nand/lpc32xx_slc.c | 2 +- drivers/mtd/nand/mpc5121_nfc.c | 2 +- drivers/mtd/nand/mxc_nand.c | 2 +- drivers/mtd/nand/ndfc.c | 2 +- drivers/mtd/nand/nuc900_nand.c | 2 +- drivers/mtd/nand/omap2.c | 2 +- drivers/mtd/nand/pasemi_nand.c | 2 +- drivers/mtd/nand/plat_nand.c | 2 +- drivers/mtd/nand/sh_flctl.c | 2 +- drivers/mtd/nand/sharpsl.c | 2 +- drivers/mtd/nand/socrates_nand.c | 2 +- drivers/mtd/onenand/generic.c | 2 +- drivers/mtd/onenand/omap2.c | 2 +- 50 files changed, 92 insertions(+), 93 deletions(-) diff --git a/drivers/mtd/devices/m25p80.c b/drivers/mtd/devices/m25p80.c index bd2d91254c6..ae43b015400 100644 --- a/drivers/mtd/devices/m25p80.c +++ b/drivers/mtd/devices/m25p80.c @@ -755,7 +755,7 @@ static const struct spi_device_id m25p_ids[] = { }; MODULE_DEVICE_TABLE(spi, m25p_ids); -static const struct spi_device_id *__devinit jedec_probe(struct spi_device *spi) +static const struct spi_device_id *jedec_probe(struct spi_device *spi) { int tmp; u8 code = OPCODE_RDID; @@ -800,7 +800,7 @@ static const struct spi_device_id *__devinit jedec_probe(struct spi_device *spi) * matches what the READ command supports, at least until this driver * understands FAST_READ (for clocks over 25 MHz). */ -static int __devinit m25p_probe(struct spi_device *spi) +static int m25p_probe(struct spi_device *spi) { const struct spi_device_id *id = spi_get_device_id(spi); struct flash_platform_data *data; diff --git a/drivers/mtd/devices/mtd_dataflash.c b/drivers/mtd/devices/mtd_dataflash.c index 23ccc36840f..080cb1c1887 100644 --- a/drivers/mtd/devices/mtd_dataflash.c +++ b/drivers/mtd/devices/mtd_dataflash.c @@ -618,7 +618,7 @@ static char *otp_setup(struct mtd_info *device, char revision) /* * Register DataFlash device with MTD subsystem. */ -static int __devinit +static int add_dataflash_otp(struct spi_device *spi, char *name, int nr_pages, int pagesize, int pageoffset, char revision) { @@ -679,7 +679,7 @@ add_dataflash_otp(struct spi_device *spi, char *name, return err; } -static inline int __devinit +static inline int add_dataflash(struct spi_device *spi, char *name, int nr_pages, int pagesize, int pageoffset) { @@ -740,7 +740,7 @@ static struct flash_info __devinitdata dataflash_data [] = { { "at45db642d", 0x1f2800, 8192, 1024, 10, SUP_POW2PS | IS_POW2PS}, }; -static struct flash_info *__devinit jedec_probe(struct spi_device *spi) +static struct flash_info *jedec_probe(struct spi_device *spi) { int tmp; uint8_t code = OP_READ_ID; @@ -823,7 +823,7 @@ static struct flash_info *__devinit jedec_probe(struct spi_device *spi) * AT45DB0642 64Mbit (8M) xx111xxx (0x3c) 8192 1056 11 * AT45DB1282 128Mbit (16M) xx0100xx (0x10) 16384 1056 11 */ -static int __devinit dataflash_probe(struct spi_device *spi) +static int dataflash_probe(struct spi_device *spi) { int status; struct flash_info *info; diff --git a/drivers/mtd/devices/spear_smi.c b/drivers/mtd/devices/spear_smi.c index e27737c9121..a30cd27ab91 100644 --- a/drivers/mtd/devices/spear_smi.c +++ b/drivers/mtd/devices/spear_smi.c @@ -756,7 +756,7 @@ err_probe: #ifdef CONFIG_OF -static int __devinit spear_smi_probe_config_dt(struct platform_device *pdev, +static int spear_smi_probe_config_dt(struct platform_device *pdev, struct device_node *np) { struct spear_smi_plat_data *pdata = dev_get_platdata(&pdev->dev); @@ -799,7 +799,7 @@ static int __devinit spear_smi_probe_config_dt(struct platform_device *pdev, return 0; } #else -static int __devinit spear_smi_probe_config_dt(struct platform_device *pdev, +static int spear_smi_probe_config_dt(struct platform_device *pdev, struct device_node *np) { return -ENOSYS; @@ -901,7 +901,7 @@ static int spear_smi_setup_banks(struct platform_device *pdev, * and do proper init for any found one. * Returns 0 on success, non zero otherwise */ -static int __devinit spear_smi_probe(struct platform_device *pdev) +static int spear_smi_probe(struct platform_device *pdev) { struct device_node *np = pdev->dev.of_node; struct spear_smi_plat_data *pdata = NULL; diff --git a/drivers/mtd/devices/sst25l.c b/drivers/mtd/devices/sst25l.c index 9ebf86d8faa..ab4154deee0 100644 --- a/drivers/mtd/devices/sst25l.c +++ b/drivers/mtd/devices/sst25l.c @@ -313,7 +313,7 @@ out: return ret; } -static struct flash_info *__devinit sst25l_match_device(struct spi_device *spi) +static struct flash_info *sst25l_match_device(struct spi_device *spi) { struct flash_info *flash_info = NULL; struct spi_message m; @@ -353,7 +353,7 @@ static struct flash_info *__devinit sst25l_match_device(struct spi_device *spi) return flash_info; } -static int __devinit sst25l_probe(struct spi_device *spi) +static int sst25l_probe(struct spi_device *spi) { struct flash_info *flash_info; struct sst25l_flash *flash; diff --git a/drivers/mtd/maps/amd76xrom.c b/drivers/mtd/maps/amd76xrom.c index e2875d6fe12..1a4f671181f 100644 --- a/drivers/mtd/maps/amd76xrom.c +++ b/drivers/mtd/maps/amd76xrom.c @@ -100,7 +100,7 @@ static void amd76xrom_cleanup(struct amd76xrom_window *window) } -static int __devinit amd76xrom_init_one (struct pci_dev *pdev, +static int amd76xrom_init_one (struct pci_dev *pdev, const struct pci_device_id *ent) { static char *rom_probe_types[] = { "cfi_probe", "jedec_probe", NULL }; diff --git a/drivers/mtd/maps/autcpu12-nvram.c b/drivers/mtd/maps/autcpu12-nvram.c index ca0313db6fe..b8c858913bb 100644 --- a/drivers/mtd/maps/autcpu12-nvram.c +++ b/drivers/mtd/maps/autcpu12-nvram.c @@ -33,7 +33,7 @@ struct autcpu12_nvram_priv { struct map_info map; }; -static int __devinit autcpu12_nvram_probe(struct platform_device *pdev) +static int autcpu12_nvram_probe(struct platform_device *pdev) { map_word tmp, save0, save1; struct resource *res; diff --git a/drivers/mtd/maps/bfin-async-flash.c b/drivers/mtd/maps/bfin-async-flash.c index 340e8a26054..658a7d06b5e 100644 --- a/drivers/mtd/maps/bfin-async-flash.c +++ b/drivers/mtd/maps/bfin-async-flash.c @@ -123,7 +123,7 @@ static void bfin_flash_copy_to(struct map_info *map, unsigned long to, const voi static const char *part_probe_types[] = { "cmdlinepart", "RedBoot", NULL }; -static int __devinit bfin_flash_probe(struct platform_device *pdev) +static int bfin_flash_probe(struct platform_device *pdev) { int ret; struct physmap_flash_data *pdata = pdev->dev.platform_data; diff --git a/drivers/mtd/maps/ck804xrom.c b/drivers/mtd/maps/ck804xrom.c index 3d0e762fa5f..65fedb9f296 100644 --- a/drivers/mtd/maps/ck804xrom.c +++ b/drivers/mtd/maps/ck804xrom.c @@ -112,7 +112,7 @@ static void ck804xrom_cleanup(struct ck804xrom_window *window) } -static int __devinit ck804xrom_init_one (struct pci_dev *pdev, +static int ck804xrom_init_one (struct pci_dev *pdev, const struct pci_device_id *ent) { static char *rom_probe_types[] = { "cfi_probe", "jedec_probe", NULL }; diff --git a/drivers/mtd/maps/esb2rom.c b/drivers/mtd/maps/esb2rom.c index 08322b1c3e8..3797825ab28 100644 --- a/drivers/mtd/maps/esb2rom.c +++ b/drivers/mtd/maps/esb2rom.c @@ -144,7 +144,7 @@ static void esb2rom_cleanup(struct esb2rom_window *window) pci_dev_put(window->pdev); } -static int __devinit esb2rom_init_one(struct pci_dev *pdev, +static int esb2rom_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) { static char *rom_probe_types[] = { "cfi_probe", "jedec_probe", NULL }; diff --git a/drivers/mtd/maps/gpio-addr-flash.c b/drivers/mtd/maps/gpio-addr-flash.c index 670af9afa78..9a6a3e15377 100644 --- a/drivers/mtd/maps/gpio-addr-flash.c +++ b/drivers/mtd/maps/gpio-addr-flash.c @@ -185,7 +185,7 @@ static const char *part_probe_types[] = { "cmdlinepart", "RedBoot", NULL }; * ... * }; */ -static int __devinit gpio_flash_probe(struct platform_device *pdev) +static int gpio_flash_probe(struct platform_device *pdev) { size_t i, arr_size; struct physmap_flash_data *pdata; diff --git a/drivers/mtd/maps/ichxrom.c b/drivers/mtd/maps/ichxrom.c index 6689dcb3124..a9bab67d2a8 100644 --- a/drivers/mtd/maps/ichxrom.c +++ b/drivers/mtd/maps/ichxrom.c @@ -84,7 +84,7 @@ static void ichxrom_cleanup(struct ichxrom_window *window) } -static int __devinit ichxrom_init_one (struct pci_dev *pdev, +static int ichxrom_init_one (struct pci_dev *pdev, const struct pci_device_id *ent) { static char *rom_probe_types[] = { "cfi_probe", "jedec_probe", NULL }; diff --git a/drivers/mtd/maps/intel_vr_nor.c b/drivers/mtd/maps/intel_vr_nor.c index f6185d4c6ba..1694c03e488 100644 --- a/drivers/mtd/maps/intel_vr_nor.c +++ b/drivers/mtd/maps/intel_vr_nor.c @@ -68,7 +68,7 @@ static void __devexit vr_nor_destroy_partitions(struct vr_nor_mtd *p) mtd_device_unregister(p->info); } -static int __devinit vr_nor_init_partitions(struct vr_nor_mtd *p) +static int vr_nor_init_partitions(struct vr_nor_mtd *p) { /* register the flash bank */ /* partition the flash bank */ @@ -80,7 +80,7 @@ static void __devexit vr_nor_destroy_mtd_setup(struct vr_nor_mtd *p) map_destroy(p->info); } -static int __devinit vr_nor_mtd_setup(struct vr_nor_mtd *p) +static int vr_nor_mtd_setup(struct vr_nor_mtd *p) { static const char *probe_types[] = { "cfi_probe", "jedec_probe", NULL }; @@ -116,7 +116,7 @@ static void __devexit vr_nor_destroy_maps(struct vr_nor_mtd *p) * Initialize the map_info structure and map the flash. * Returns 0 on success, nonzero otherwise. */ -static int __devinit vr_nor_init_maps(struct vr_nor_mtd *p) +static int vr_nor_init_maps(struct vr_nor_mtd *p) { unsigned long csr_phys, csr_len; unsigned long win_phys, win_len; @@ -189,7 +189,7 @@ static void __devexit vr_nor_pci_remove(struct pci_dev *dev) pci_disable_device(dev); } -static int __devinit +static int vr_nor_pci_probe(struct pci_dev *dev, const struct pci_device_id *id) { struct vr_nor_mtd *p = NULL; diff --git a/drivers/mtd/maps/lantiq-flash.c b/drivers/mtd/maps/lantiq-flash.c index 4c032f16813..58d1f61a70b 100644 --- a/drivers/mtd/maps/lantiq-flash.c +++ b/drivers/mtd/maps/lantiq-flash.c @@ -109,7 +109,7 @@ ltq_copy_to(struct map_info *map, unsigned long to, spin_unlock_irqrestore(&ebu_lock, flags); } -static int __devinit +static int ltq_mtd_probe(struct platform_device *pdev) { struct mtd_part_parser_data ppdata; diff --git a/drivers/mtd/maps/latch-addr-flash.c b/drivers/mtd/maps/latch-addr-flash.c index 962a76a283a..ab0fead56b8 100644 --- a/drivers/mtd/maps/latch-addr-flash.c +++ b/drivers/mtd/maps/latch-addr-flash.c @@ -125,7 +125,7 @@ static int latch_addr_flash_remove(struct platform_device *dev) return 0; } -static int __devinit latch_addr_flash_probe(struct platform_device *dev) +static int latch_addr_flash_probe(struct platform_device *dev) { struct latch_addr_flash_data *latch_addr_data; struct latch_addr_flash_info *info; diff --git a/drivers/mtd/maps/pci.c b/drivers/mtd/maps/pci.c index ddc8c0c56d0..81a8caf3bd1 100644 --- a/drivers/mtd/maps/pci.c +++ b/drivers/mtd/maps/pci.c @@ -253,7 +253,7 @@ static struct pci_device_id mtd_pci_ids[] = { * Generic code follows. */ -static int __devinit +static int mtd_pci_probe(struct pci_dev *dev, const struct pci_device_id *id) { struct mtd_pci_info *info = (struct mtd_pci_info *)id->driver_data; diff --git a/drivers/mtd/maps/physmap_of.c b/drivers/mtd/maps/physmap_of.c index d7f19bc6de4..cde8bf94338 100644 --- a/drivers/mtd/maps/physmap_of.c +++ b/drivers/mtd/maps/physmap_of.c @@ -77,7 +77,7 @@ static int of_flash_remove(struct platform_device *dev) /* Helper function to handle probing of the obsolete "direct-mapped" * compatible binding, which has an extra "probe-type" property * describing the type of flash probe necessary. */ -static struct mtd_info * __devinit obsolete_probe(struct platform_device *dev, +static struct mtd_info *obsolete_probe(struct platform_device *dev, struct map_info *map) { struct device_node *dp = dev->dev.of_node; @@ -116,7 +116,7 @@ static struct mtd_info * __devinit obsolete_probe(struct platform_device *dev, information. */ static const char *part_probe_types_def[] = { "cmdlinepart", "RedBoot", "ofpart", "ofoldpart", NULL }; -static const char ** __devinit of_get_probes(struct device_node *dp) +static const char **of_get_probes(struct device_node *dp) { const char *cp; int cplen; @@ -145,14 +145,14 @@ static const char ** __devinit of_get_probes(struct device_node *dp) return res; } -static void __devinit of_free_probes(const char **probes) +static void of_free_probes(const char **probes) { if (probes != part_probe_types_def) kfree(probes); } static struct of_device_id of_flash_match[]; -static int __devinit of_flash_probe(struct platform_device *dev) +static int of_flash_probe(struct platform_device *dev) { const char **part_probe_types; const struct of_device_id *match; diff --git a/drivers/mtd/maps/pismo.c b/drivers/mtd/maps/pismo.c index 9f4e5947c99..01db0d0b076 100644 --- a/drivers/mtd/maps/pismo.c +++ b/drivers/mtd/maps/pismo.c @@ -58,7 +58,7 @@ static void pismo_set_vpp(struct platform_device *pdev, int on) pismo->vpp(pismo->vpp_data, on); } -static unsigned int __devinit pismo_width_to_bytes(unsigned int width) +static unsigned int pismo_width_to_bytes(unsigned int width) { width &= 15; if (width > 2) @@ -66,7 +66,7 @@ static unsigned int __devinit pismo_width_to_bytes(unsigned int width) return 1 << width; } -static int __devinit pismo_eeprom_read(struct i2c_client *client, void *buf, +static int pismo_eeprom_read(struct i2c_client *client, void *buf, u8 addr, size_t size) { int ret; @@ -88,7 +88,7 @@ static int __devinit pismo_eeprom_read(struct i2c_client *client, void *buf, return ret == ARRAY_SIZE(msg) ? size : -EIO; } -static int __devinit pismo_add_device(struct pismo_data *pismo, int i, +static int pismo_add_device(struct pismo_data *pismo, int i, struct pismo_mem *region, const char *name, void *pdata, size_t psize) { struct platform_device *dev; @@ -129,7 +129,7 @@ static int __devinit pismo_add_device(struct pismo_data *pismo, int i, return ret; } -static int __devinit pismo_add_nor(struct pismo_data *pismo, int i, +static int pismo_add_nor(struct pismo_data *pismo, int i, struct pismo_mem *region) { struct physmap_flash_data data = { @@ -143,7 +143,7 @@ static int __devinit pismo_add_nor(struct pismo_data *pismo, int i, &data, sizeof(data)); } -static int __devinit pismo_add_sram(struct pismo_data *pismo, int i, +static int pismo_add_sram(struct pismo_data *pismo, int i, struct pismo_mem *region) { struct platdata_mtd_ram data = { @@ -154,7 +154,7 @@ static int __devinit pismo_add_sram(struct pismo_data *pismo, int i, &data, sizeof(data)); } -static void __devinit pismo_add_one(struct pismo_data *pismo, int i, +static void pismo_add_one(struct pismo_data *pismo, int i, const struct pismo_cs_block *cs, phys_addr_t base) { struct device *dev = &pismo->client->dev; @@ -210,7 +210,7 @@ static int __devexit pismo_remove(struct i2c_client *client) return 0; } -static int __devinit pismo_probe(struct i2c_client *client, +static int pismo_probe(struct i2c_client *client, const struct i2c_device_id *id) { struct i2c_adapter *adapter = to_i2c_adapter(client->dev.parent); diff --git a/drivers/mtd/maps/pxa2xx-flash.c b/drivers/mtd/maps/pxa2xx-flash.c index f913a1c3f2b..b5120f9e984 100644 --- a/drivers/mtd/maps/pxa2xx-flash.c +++ b/drivers/mtd/maps/pxa2xx-flash.c @@ -49,7 +49,7 @@ struct pxa2xx_flash_info { static const char *probes[] = { "RedBoot", "cmdlinepart", NULL }; -static int __devinit pxa2xx_flash_probe(struct platform_device *pdev) +static int pxa2xx_flash_probe(struct platform_device *pdev) { struct flash_platform_data *flash = pdev->dev.platform_data; struct pxa2xx_flash_info *info; diff --git a/drivers/mtd/maps/sa1100-flash.c b/drivers/mtd/maps/sa1100-flash.c index a675bdbcb0f..7aebc82a5c6 100644 --- a/drivers/mtd/maps/sa1100-flash.c +++ b/drivers/mtd/maps/sa1100-flash.c @@ -149,8 +149,7 @@ static void sa1100_destroy(struct sa_info *info, struct flash_platform_data *pla plat->exit(); } -static struct sa_info *__devinit -sa1100_setup_mtd(struct platform_device *pdev, struct flash_platform_data *plat) +static struct sa_info *sa1100_setup_mtd(struct platform_device *pdev, struct flash_platform_data *plat) { struct sa_info *info; int nr, size, i, ret = 0; @@ -246,7 +245,7 @@ sa1100_setup_mtd(struct platform_device *pdev, struct flash_platform_data *plat) static const char *part_probes[] = { "cmdlinepart", "RedBoot", NULL }; -static int __devinit sa1100_mtd_probe(struct platform_device *pdev) +static int sa1100_mtd_probe(struct platform_device *pdev) { struct flash_platform_data *plat = pdev->dev.platform_data; struct sa_info *info; diff --git a/drivers/mtd/maps/scb2_flash.c b/drivers/mtd/maps/scb2_flash.c index d527608e5d2..bb1857f70bb 100644 --- a/drivers/mtd/maps/scb2_flash.c +++ b/drivers/mtd/maps/scb2_flash.c @@ -69,7 +69,7 @@ static struct map_info scb2_map = { }; static int region_fail; -static int __devinit +static int scb2_fixup_mtd(struct mtd_info *mtd) { int i; @@ -133,7 +133,7 @@ scb2_fixup_mtd(struct mtd_info *mtd) /* CSB5's 'Function Control Register' has bits for decoding @ >= 0xffc00000 */ #define CSB5_FCR 0x41 #define CSB5_FCR_DECODE_ALL 0x0e -static int __devinit +static int scb2_flash_probe(struct pci_dev *dev, const struct pci_device_id *ent) { u8 reg; diff --git a/drivers/mtd/maps/sun_uflash.c b/drivers/mtd/maps/sun_uflash.c index 1c03ca7c4a7..2618e4dd271 100644 --- a/drivers/mtd/maps/sun_uflash.c +++ b/drivers/mtd/maps/sun_uflash.c @@ -108,7 +108,7 @@ int uflash_devinit(struct platform_device *op, struct device_node *dp) return 0; } -static int __devinit uflash_probe(struct platform_device *op) +static int uflash_probe(struct platform_device *op) { struct device_node *dp = op->dev.of_node; diff --git a/drivers/mtd/maps/vmu-flash.c b/drivers/mtd/maps/vmu-flash.c index 5a83a264eb8..84c3f5a99e1 100644 --- a/drivers/mtd/maps/vmu-flash.c +++ b/drivers/mtd/maps/vmu-flash.c @@ -596,7 +596,7 @@ fail_name: } /* Handles very basic info about the flash, queries for details */ -static int __devinit vmu_connect(struct maple_device *mdev) +static int vmu_connect(struct maple_device *mdev) { unsigned long test_flash_data, basic_flash_data; int c, error; @@ -772,7 +772,7 @@ static void vmu_file_error(struct maple_device *mdev, void *recvbuf) } -static int __devinit probe_maple_vmu(struct device *dev) +static int probe_maple_vmu(struct device *dev) { int error; struct maple_device *mdev = to_maple_dev(dev); diff --git a/drivers/mtd/nand/ams-delta.c b/drivers/mtd/nand/ams-delta.c index 51dba43e287..703e3738713 100644 --- a/drivers/mtd/nand/ams-delta.c +++ b/drivers/mtd/nand/ams-delta.c @@ -173,7 +173,7 @@ static const struct gpio _mandatory_gpio[] = { /* * Main initialization routine */ -static int __devinit ams_delta_init(struct platform_device *pdev) +static int ams_delta_init(struct platform_device *pdev) { struct nand_chip *this; struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0); diff --git a/drivers/mtd/nand/atmel_nand.c b/drivers/mtd/nand/atmel_nand.c index 91445578330..c9183866a16 100644 --- a/drivers/mtd/nand/atmel_nand.c +++ b/drivers/mtd/nand/atmel_nand.c @@ -330,13 +330,13 @@ static void atmel_write_buf(struct mtd_info *mtd, const u8 *buf, int len) * 12-bits 20-bytes 21-bytes * 24-bits 39-bytes 42-bytes */ -static int __devinit pmecc_get_ecc_bytes(int cap, int sector_size) +static int pmecc_get_ecc_bytes(int cap, int sector_size) { int m = 12 + sector_size / 512; return (m * cap + 7) / 8; } -static void __devinit pmecc_config_ecc_layout(struct nand_ecclayout *layout, +static void pmecc_config_ecc_layout(struct nand_ecclayout *layout, int oobsize, int ecc_len) { int i; @@ -352,7 +352,7 @@ static void __devinit pmecc_config_ecc_layout(struct nand_ecclayout *layout, oobsize - ecc_len - layout->oobfree[0].offset; } -static void __devinit __iomem *pmecc_get_alpha_to(struct atmel_nand_host *host) +static void __iomem *pmecc_get_alpha_to(struct atmel_nand_host *host) { int table_size; @@ -374,7 +374,7 @@ static void pmecc_data_free(struct atmel_nand_host *host) kfree(host->pmecc_delta); } -static int __devinit pmecc_data_alloc(struct atmel_nand_host *host) +static int pmecc_data_alloc(struct atmel_nand_host *host) { const int cap = host->pmecc_corr_cap; @@ -1205,7 +1205,7 @@ static void atmel_nand_hwctl(struct mtd_info *mtd, int mode) } #if defined(CONFIG_OF) -static int __devinit atmel_of_init_port(struct atmel_nand_host *host, +static int atmel_of_init_port(struct atmel_nand_host *host, struct device_node *np) { u32 val, table_offset; @@ -1292,7 +1292,7 @@ static int __devinit atmel_of_init_port(struct atmel_nand_host *host, return 0; } #else -static int __devinit atmel_of_init_port(struct atmel_nand_host *host, +static int atmel_of_init_port(struct atmel_nand_host *host, struct device_node *np) { return -EINVAL; diff --git a/drivers/mtd/nand/au1550nd.c b/drivers/mtd/nand/au1550nd.c index d84af46ccc8..73d6423680c 100644 --- a/drivers/mtd/nand/au1550nd.c +++ b/drivers/mtd/nand/au1550nd.c @@ -382,7 +382,7 @@ static void au1550_command(struct mtd_info *mtd, unsigned command, int column, i while(!this->dev_ready(mtd)); } -static int __devinit find_nand_cs(unsigned long nand_base) +static int find_nand_cs(unsigned long nand_base) { void __iomem *base = (void __iomem *)KSEG1ADDR(AU1000_STATIC_MEM_PHYS_ADDR); @@ -403,7 +403,7 @@ static int __devinit find_nand_cs(unsigned long nand_base) return -ENODEV; } -static int __devinit au1550nd_probe(struct platform_device *pdev) +static int au1550nd_probe(struct platform_device *pdev) { struct au1550nd_platdata *pd; struct au1550nd_ctx *ctx; diff --git a/drivers/mtd/nand/bf5xx_nand.c b/drivers/mtd/nand/bf5xx_nand.c index 0afd4ac3424..56de9b67638 100644 --- a/drivers/mtd/nand/bf5xx_nand.c +++ b/drivers/mtd/nand/bf5xx_nand.c @@ -658,7 +658,7 @@ static int bf5xx_nand_hw_init(struct bf5xx_nand_info *info) /* * Device management interface */ -static int __devinit bf5xx_nand_add_partition(struct bf5xx_nand_info *info) +static int bf5xx_nand_add_partition(struct bf5xx_nand_info *info) { struct mtd_info *mtd = &info->mtd; struct mtd_partition *parts = info->platform->partitions; @@ -725,7 +725,7 @@ static int bf5xx_nand_scan(struct mtd_info *mtd) * it can allocate all necessary resources then calls the * nand layer to look for devices */ -static int __devinit bf5xx_nand_probe(struct platform_device *pdev) +static int bf5xx_nand_probe(struct platform_device *pdev) { struct bf5xx_nand_platform *plat = to_nand_plat(pdev); struct bf5xx_nand_info *info = NULL; diff --git a/drivers/mtd/nand/cafe_nand.c b/drivers/mtd/nand/cafe_nand.c index 1b62f043bf7..480834a9838 100644 --- a/drivers/mtd/nand/cafe_nand.c +++ b/drivers/mtd/nand/cafe_nand.c @@ -585,7 +585,7 @@ static int cafe_nand_block_bad(struct mtd_info *mtd, loff_t ofs, int getchip) } /* F_2[X]/(X**6+X+1) */ -static unsigned short __devinit gf64_mul(u8 a, u8 b) +static unsigned short gf64_mul(u8 a, u8 b) { u8 c; unsigned int i; @@ -604,7 +604,7 @@ static unsigned short __devinit gf64_mul(u8 a, u8 b) } /* F_64[X]/(X**2+X+A**-1) with A the generator of F_64[X] */ -static u16 __devinit gf4096_mul(u16 a, u16 b) +static u16 gf4096_mul(u16 a, u16 b) { u8 ah, al, bh, bl, ch, cl; @@ -619,14 +619,14 @@ static u16 __devinit gf4096_mul(u16 a, u16 b) return (ch << 6) ^ cl; } -static int __devinit cafe_mul(int x) +static int cafe_mul(int x) { if (x == 0) return 1; return gf4096_mul(x, 0xe01); } -static int __devinit cafe_nand_probe(struct pci_dev *pdev, +static int cafe_nand_probe(struct pci_dev *pdev, const struct pci_device_id *ent) { struct mtd_info *mtd; diff --git a/drivers/mtd/nand/denali_dt.c b/drivers/mtd/nand/denali_dt.c index 445de7c8bb5..f9b593c81db 100644 --- a/drivers/mtd/nand/denali_dt.c +++ b/drivers/mtd/nand/denali_dt.c @@ -57,7 +57,7 @@ MODULE_DEVICE_TABLE(of, denali_nand_dt_ids); static u64 denali_dma_mask; -static int __devinit denali_dt_probe(struct platform_device *ofdev) +static int denali_dt_probe(struct platform_device *ofdev) { struct resource *denali_reg, *nand_data; struct denali_dt *dt; diff --git a/drivers/mtd/nand/denali_pci.c b/drivers/mtd/nand/denali_pci.c index ea074e6c762..f1f8f896fcc 100644 --- a/drivers/mtd/nand/denali_pci.c +++ b/drivers/mtd/nand/denali_pci.c @@ -130,7 +130,7 @@ static struct pci_driver denali_pci_driver = { .remove = denali_pci_remove, }; -static int __devinit denali_init_pci(void) +static int denali_init_pci(void) { pr_info("Spectra MTD driver built on %s @ %s\n", __DATE__, __TIME__); return pci_register_driver(&denali_pci_driver); diff --git a/drivers/mtd/nand/fsl_elbc_nand.c b/drivers/mtd/nand/fsl_elbc_nand.c index 4c4d3e5bca1..20657209a47 100644 --- a/drivers/mtd/nand/fsl_elbc_nand.c +++ b/drivers/mtd/nand/fsl_elbc_nand.c @@ -799,7 +799,7 @@ static int fsl_elbc_chip_remove(struct fsl_elbc_mtd *priv) static DEFINE_MUTEX(fsl_elbc_nand_mutex); -static int __devinit fsl_elbc_nand_probe(struct platform_device *pdev) +static int fsl_elbc_nand_probe(struct platform_device *pdev) { struct fsl_lbc_regs __iomem *lbc; struct fsl_elbc_mtd *priv; diff --git a/drivers/mtd/nand/fsl_ifc_nand.c b/drivers/mtd/nand/fsl_ifc_nand.c index 53152310804..ad6222627fe 100644 --- a/drivers/mtd/nand/fsl_ifc_nand.c +++ b/drivers/mtd/nand/fsl_ifc_nand.c @@ -922,7 +922,7 @@ static int match_bank(struct fsl_ifc_regs __iomem *ifc, int bank, static DEFINE_MUTEX(fsl_ifc_nand_mutex); -static int __devinit fsl_ifc_nand_probe(struct platform_device *dev) +static int fsl_ifc_nand_probe(struct platform_device *dev) { struct fsl_ifc_regs __iomem *ifc; struct fsl_ifc_mtd *priv; diff --git a/drivers/mtd/nand/fsl_upm.c b/drivers/mtd/nand/fsl_upm.c index b40661d7160..a5643252584 100644 --- a/drivers/mtd/nand/fsl_upm.c +++ b/drivers/mtd/nand/fsl_upm.c @@ -152,7 +152,7 @@ static void fun_write_buf(struct mtd_info *mtd, const uint8_t *buf, int len) fun_wait_rnb(fun); } -static int __devinit fun_chip_init(struct fsl_upm_nand *fun, +static int fun_chip_init(struct fsl_upm_nand *fun, const struct device_node *upm_np, const struct resource *io_res) { @@ -201,7 +201,7 @@ err: return ret; } -static int __devinit fun_probe(struct platform_device *ofdev) +static int fun_probe(struct platform_device *ofdev) { struct fsl_upm_nand *fun; struct resource io_res; diff --git a/drivers/mtd/nand/fsmc_nand.c b/drivers/mtd/nand/fsmc_nand.c index 6b592235f84..1d7446434b0 100644 --- a/drivers/mtd/nand/fsmc_nand.c +++ b/drivers/mtd/nand/fsmc_nand.c @@ -864,7 +864,7 @@ static bool filter(struct dma_chan *chan, void *slave) } #ifdef CONFIG_OF -static int __devinit fsmc_nand_probe_config_dt(struct platform_device *pdev, +static int fsmc_nand_probe_config_dt(struct platform_device *pdev, struct device_node *np) { struct fsmc_nand_platform_data *pdata = dev_get_platdata(&pdev->dev); @@ -886,7 +886,7 @@ static int __devinit fsmc_nand_probe_config_dt(struct platform_device *pdev, return 0; } #else -static int __devinit fsmc_nand_probe_config_dt(struct platform_device *pdev, +static int fsmc_nand_probe_config_dt(struct platform_device *pdev, struct device_node *np) { return -ENOSYS; diff --git a/drivers/mtd/nand/gpio.c b/drivers/mtd/nand/gpio.c index 0b3c815ef80..45f1a240bcb 100644 --- a/drivers/mtd/nand/gpio.c +++ b/drivers/mtd/nand/gpio.c @@ -282,7 +282,7 @@ static void __iomem *request_and_remap(struct resource *res, size_t size, return ptr; } -static int __devinit gpio_nand_probe(struct platform_device *dev) +static int gpio_nand_probe(struct platform_device *dev) { struct gpiomtd *gpiomtd; struct nand_chip *this; diff --git a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c index 7ce6d01a3c9..2a251c95a70 100644 --- a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c +++ b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c @@ -319,7 +319,7 @@ int start_dma_with_bch_irq(struct gpmi_nand_data *this, return 0; } -static int __devinit +static int acquire_register_block(struct gpmi_nand_data *this, const char *res_name) { struct platform_device *pdev = this->pdev; @@ -360,7 +360,7 @@ static void release_register_block(struct gpmi_nand_data *this) res->bch_regs = NULL; } -static int __devinit +static int acquire_bch_irq(struct gpmi_nand_data *this, irq_handler_t irq_h) { struct platform_device *pdev = this->pdev; @@ -427,7 +427,7 @@ static void release_dma_channels(struct gpmi_nand_data *this) } } -static int __devinit acquire_dma_channels(struct gpmi_nand_data *this) +static int acquire_dma_channels(struct gpmi_nand_data *this) { struct platform_device *pdev = this->pdev; struct resource *r_dma; @@ -492,7 +492,7 @@ static char *extra_clks_for_mx6q[GPMI_CLK_MAX] = { "gpmi_apb", "gpmi_bch", "gpmi_bch_apb", "per1_bch", }; -static int __devinit gpmi_get_clks(struct gpmi_nand_data *this) +static int gpmi_get_clks(struct gpmi_nand_data *this) { struct resources *r = &this->resources; char **extra_clks = NULL; @@ -538,7 +538,7 @@ err_clock: return -ENOMEM; } -static int __devinit acquire_resources(struct gpmi_nand_data *this) +static int acquire_resources(struct gpmi_nand_data *this) { struct pinctrl *pinctrl; int ret; @@ -588,7 +588,7 @@ static void release_resources(struct gpmi_nand_data *this) release_dma_channels(this); } -static int __devinit init_hardware(struct gpmi_nand_data *this) +static int init_hardware(struct gpmi_nand_data *this) { int ret; @@ -1542,7 +1542,7 @@ static void gpmi_nfc_exit(struct gpmi_nand_data *this) gpmi_free_dma_buffer(this); } -static int __devinit gpmi_nfc_init(struct gpmi_nand_data *this) +static int gpmi_nfc_init(struct gpmi_nand_data *this) { struct mtd_info *mtd = &this->mtd; struct nand_chip *chip = &this->nand; @@ -1625,7 +1625,7 @@ static const struct of_device_id gpmi_nand_id_table[] = { }; MODULE_DEVICE_TABLE(of, gpmi_nand_id_table); -static int __devinit gpmi_nand_probe(struct platform_device *pdev) +static int gpmi_nand_probe(struct platform_device *pdev) { struct gpmi_nand_data *this; const struct of_device_id *of_id; diff --git a/drivers/mtd/nand/jz4740_nand.c b/drivers/mtd/nand/jz4740_nand.c index 2552fe28d05..5396b6ceb08 100644 --- a/drivers/mtd/nand/jz4740_nand.c +++ b/drivers/mtd/nand/jz4740_nand.c @@ -322,7 +322,7 @@ static inline void jz_nand_iounmap_resource(struct resource *res, void __iomem * release_mem_region(res->start, resource_size(res)); } -static int __devinit jz_nand_detect_bank(struct platform_device *pdev, struct jz_nand *nand, unsigned char bank, size_t chipnr, uint8_t *nand_maf_id, uint8_t *nand_dev_id) { +static int jz_nand_detect_bank(struct platform_device *pdev, struct jz_nand *nand, unsigned char bank, size_t chipnr, uint8_t *nand_maf_id, uint8_t *nand_dev_id) { int ret; int gpio; char gpio_name[9]; @@ -400,7 +400,7 @@ notfound_gpio: return ret; } -static int __devinit jz_nand_probe(struct platform_device *pdev) +static int jz_nand_probe(struct platform_device *pdev) { int ret; struct jz_nand *nand; diff --git a/drivers/mtd/nand/lpc32xx_mlc.c b/drivers/mtd/nand/lpc32xx_mlc.c index 311564259d2..bb83daf9c73 100644 --- a/drivers/mtd/nand/lpc32xx_mlc.c +++ b/drivers/mtd/nand/lpc32xx_mlc.c @@ -655,7 +655,7 @@ static struct lpc32xx_nand_cfg_mlc *lpc32xx_parse_dt(struct device *dev) /* * Probe for NAND controller */ -static int __devinit lpc32xx_nand_probe(struct platform_device *pdev) +static int lpc32xx_nand_probe(struct platform_device *pdev) { struct lpc32xx_nand_host *host; struct mtd_info *mtd; diff --git a/drivers/mtd/nand/lpc32xx_slc.c b/drivers/mtd/nand/lpc32xx_slc.c index 9e291b71a8c..17267f2819d 100644 --- a/drivers/mtd/nand/lpc32xx_slc.c +++ b/drivers/mtd/nand/lpc32xx_slc.c @@ -755,7 +755,7 @@ static struct lpc32xx_nand_cfg_slc *lpc32xx_parse_dt(struct device *dev) /* * Probe for NAND controller */ -static int __devinit lpc32xx_nand_probe(struct platform_device *pdev) +static int lpc32xx_nand_probe(struct platform_device *pdev) { struct lpc32xx_nand_host *host; struct mtd_info *mtd; diff --git a/drivers/mtd/nand/mpc5121_nfc.c b/drivers/mtd/nand/mpc5121_nfc.c index 17fe0c942fb..f779e6a3d4b 100644 --- a/drivers/mtd/nand/mpc5121_nfc.c +++ b/drivers/mtd/nand/mpc5121_nfc.c @@ -626,7 +626,7 @@ static void mpc5121_nfc_free(struct device *dev, struct mtd_info *mtd) iounmap(prv->csreg); } -static int __devinit mpc5121_nfc_probe(struct platform_device *op) +static int mpc5121_nfc_probe(struct platform_device *op) { struct device_node *rootnode, *dn = op->dev.of_node; struct device *dev = &op->dev; diff --git a/drivers/mtd/nand/mxc_nand.c b/drivers/mtd/nand/mxc_nand.c index a4caf640a30..77a03cf64dd 100644 --- a/drivers/mtd/nand/mxc_nand.c +++ b/drivers/mtd/nand/mxc_nand.c @@ -1363,7 +1363,7 @@ static int __init mxcnd_probe_pdata(struct mxc_nand_host *host) return 0; } -static int __devinit mxcnd_probe(struct platform_device *pdev) +static int mxcnd_probe(struct platform_device *pdev) { struct nand_chip *this; struct mtd_info *mtd; diff --git a/drivers/mtd/nand/ndfc.c b/drivers/mtd/nand/ndfc.c index 32e6bef480d..6fa4588d477 100644 --- a/drivers/mtd/nand/ndfc.c +++ b/drivers/mtd/nand/ndfc.c @@ -197,7 +197,7 @@ err: return ret; } -static int __devinit ndfc_probe(struct platform_device *ofdev) +static int ndfc_probe(struct platform_device *ofdev) { struct ndfc_controller *ndfc; const __be32 *reg; diff --git a/drivers/mtd/nand/nuc900_nand.c b/drivers/mtd/nand/nuc900_nand.c index eed134c5532..00766dfe4d3 100644 --- a/drivers/mtd/nand/nuc900_nand.c +++ b/drivers/mtd/nand/nuc900_nand.c @@ -246,7 +246,7 @@ static void nuc900_nand_enable(struct nuc900_nand *nand) spin_unlock(&nand->lock); } -static int __devinit nuc900_nand_probe(struct platform_device *pdev) +static int nuc900_nand_probe(struct platform_device *pdev) { struct nuc900_nand *nuc900_nand; struct nand_chip *chip; diff --git a/drivers/mtd/nand/omap2.c b/drivers/mtd/nand/omap2.c index 5b313862064..b00ccb2a68c 100644 --- a/drivers/mtd/nand/omap2.c +++ b/drivers/mtd/nand/omap2.c @@ -1239,7 +1239,7 @@ static void omap3_free_bch(struct mtd_info *mtd) } #endif /* CONFIG_MTD_NAND_OMAP_BCH */ -static int __devinit omap_nand_probe(struct platform_device *pdev) +static int omap_nand_probe(struct platform_device *pdev) { struct omap_nand_info *info; struct omap_nand_platform_data *pdata; diff --git a/drivers/mtd/nand/pasemi_nand.c b/drivers/mtd/nand/pasemi_nand.c index 1440e51cedc..2e477cb20b7 100644 --- a/drivers/mtd/nand/pasemi_nand.c +++ b/drivers/mtd/nand/pasemi_nand.c @@ -89,7 +89,7 @@ int pasemi_device_ready(struct mtd_info *mtd) return !!(inl(lpcctl) & LBICTRL_LPCCTL_NR); } -static int __devinit pasemi_nand_probe(struct platform_device *ofdev) +static int pasemi_nand_probe(struct platform_device *ofdev) { struct pci_dev *pdev; struct device_node *np = ofdev->dev.of_node; diff --git a/drivers/mtd/nand/plat_nand.c b/drivers/mtd/nand/plat_nand.c index 95a1dba150d..32e2996c9e7 100644 --- a/drivers/mtd/nand/plat_nand.c +++ b/drivers/mtd/nand/plat_nand.c @@ -28,7 +28,7 @@ static const char *part_probe_types[] = { "cmdlinepart", NULL }; /* * Probe for the NAND device. */ -static int __devinit plat_nand_probe(struct platform_device *pdev) +static int plat_nand_probe(struct platform_device *pdev) { struct platform_nand_data *pdata = pdev->dev.platform_data; struct mtd_part_parser_data ppdata; diff --git a/drivers/mtd/nand/sh_flctl.c b/drivers/mtd/nand/sh_flctl.c index d51e3c15d37..e45d6bd2901 100644 --- a/drivers/mtd/nand/sh_flctl.c +++ b/drivers/mtd/nand/sh_flctl.c @@ -1086,7 +1086,7 @@ static struct sh_flctl_platform_data *flctl_parse_dt(struct device *dev) } #endif /* CONFIG_OF */ -static int __devinit flctl_probe(struct platform_device *pdev) +static int flctl_probe(struct platform_device *pdev) { struct resource *res; struct sh_flctl *flctl; diff --git a/drivers/mtd/nand/sharpsl.c b/drivers/mtd/nand/sharpsl.c index 541fd511762..870f0ff76c5 100644 --- a/drivers/mtd/nand/sharpsl.c +++ b/drivers/mtd/nand/sharpsl.c @@ -106,7 +106,7 @@ static int sharpsl_nand_calculate_ecc(struct mtd_info *mtd, const u_char * dat, /* * Main initialization routine */ -static int __devinit sharpsl_nand_probe(struct platform_device *pdev) +static int sharpsl_nand_probe(struct platform_device *pdev) { struct nand_chip *this; struct resource *r; diff --git a/drivers/mtd/nand/socrates_nand.c b/drivers/mtd/nand/socrates_nand.c index 78b1a040b88..c9791fd1ee5 100644 --- a/drivers/mtd/nand/socrates_nand.c +++ b/drivers/mtd/nand/socrates_nand.c @@ -140,7 +140,7 @@ static int socrates_nand_device_ready(struct mtd_info *mtd) /* * Probe for the NAND device. */ -static int __devinit socrates_nand_probe(struct platform_device *ofdev) +static int socrates_nand_probe(struct platform_device *ofdev) { struct socrates_nand_host *host; struct mtd_info *mtd; diff --git a/drivers/mtd/onenand/generic.c b/drivers/mtd/onenand/generic.c index 27aa44a6ec2..03e6af34242 100644 --- a/drivers/mtd/onenand/generic.c +++ b/drivers/mtd/onenand/generic.c @@ -35,7 +35,7 @@ struct onenand_info { struct onenand_chip onenand; }; -static int __devinit generic_onenand_probe(struct platform_device *pdev) +static int generic_onenand_probe(struct platform_device *pdev) { struct onenand_info *info; struct onenand_platform_data *pdata = pdev->dev.platform_data; diff --git a/drivers/mtd/onenand/omap2.c b/drivers/mtd/onenand/omap2.c index 73dac4c64a9..8c10a2f5415 100644 --- a/drivers/mtd/onenand/omap2.c +++ b/drivers/mtd/onenand/omap2.c @@ -619,7 +619,7 @@ static int omap2_onenand_disable(struct mtd_info *mtd) return ret; } -static int __devinit omap2_onenand_probe(struct platform_device *pdev) +static int omap2_onenand_probe(struct platform_device *pdev) { struct omap_onenand_platform_data *pdata; struct omap2_onenand *c; From 042a190944675bc54790bcf45b8b2c86e68f003b Mon Sep 17 00:00:00 2001 From: Bill Pemberton Date: Mon, 19 Nov 2012 13:24:23 -0500 Subject: [PATCH 67/96] mtd: remove use of __devinitdata CONFIG_HOTPLUG is going away as an option so __devinitdata is no longer needed. Signed-off-by: Bill Pemberton Signed-off-by: Artem Bityutskiy --- drivers/mtd/devices/mtd_dataflash.c | 2 +- drivers/mtd/devices/sst25l.c | 2 +- drivers/mtd/maps/esb2rom.c | 2 +- drivers/mtd/maps/ichxrom.c | 2 +- drivers/mtd/nand/mpc5121_nfc.c | 2 +- 5 files changed, 5 insertions(+), 5 deletions(-) diff --git a/drivers/mtd/devices/mtd_dataflash.c b/drivers/mtd/devices/mtd_dataflash.c index 080cb1c1887..0b3f17361ac 100644 --- a/drivers/mtd/devices/mtd_dataflash.c +++ b/drivers/mtd/devices/mtd_dataflash.c @@ -705,7 +705,7 @@ struct flash_info { #define IS_POW2PS 0x0001 /* uses 2^N byte pages */ }; -static struct flash_info __devinitdata dataflash_data [] = { +static struct flash_info dataflash_data [] = { /* * NOTE: chips with SUP_POW2PS (rev D and up) need two entries, diff --git a/drivers/mtd/devices/sst25l.c b/drivers/mtd/devices/sst25l.c index ab4154deee0..e4f233941bf 100644 --- a/drivers/mtd/devices/sst25l.c +++ b/drivers/mtd/devices/sst25l.c @@ -64,7 +64,7 @@ struct flash_info { #define to_sst25l_flash(x) container_of(x, struct sst25l_flash, mtd) -static struct flash_info __devinitdata sst25l_flash_info[] = { +static struct flash_info sst25l_flash_info[] = { {"sst25lf020a", 0xbf43, 256, 1024, 4096}, {"sst25lf040a", 0xbf44, 256, 2048, 4096}, }; diff --git a/drivers/mtd/maps/esb2rom.c b/drivers/mtd/maps/esb2rom.c index 3797825ab28..664303f11f0 100644 --- a/drivers/mtd/maps/esb2rom.c +++ b/drivers/mtd/maps/esb2rom.c @@ -384,7 +384,7 @@ static void __devexit esb2rom_remove_one (struct pci_dev *pdev) esb2rom_cleanup(window); } -static struct pci_device_id esb2rom_pci_tbl[] __devinitdata = { +static struct pci_device_id esb2rom_pci_tbl[] = { { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_0, PCI_ANY_ID, PCI_ANY_ID, }, { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_0, diff --git a/drivers/mtd/maps/ichxrom.c b/drivers/mtd/maps/ichxrom.c index a9bab67d2a8..9673601c383 100644 --- a/drivers/mtd/maps/ichxrom.c +++ b/drivers/mtd/maps/ichxrom.c @@ -321,7 +321,7 @@ static void __devexit ichxrom_remove_one (struct pci_dev *pdev) ichxrom_cleanup(window); } -static struct pci_device_id ichxrom_pci_tbl[] __devinitdata = { +static struct pci_device_id ichxrom_pci_tbl[] = { { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_0, PCI_ANY_ID, PCI_ANY_ID, }, { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_0, diff --git a/drivers/mtd/nand/mpc5121_nfc.c b/drivers/mtd/nand/mpc5121_nfc.c index f779e6a3d4b..09f75a57e83 100644 --- a/drivers/mtd/nand/mpc5121_nfc.c +++ b/drivers/mtd/nand/mpc5121_nfc.c @@ -841,7 +841,7 @@ static int __devexit mpc5121_nfc_remove(struct platform_device *op) return 0; } -static struct of_device_id mpc5121_nfc_match[] __devinitdata = { +static struct of_device_id mpc5121_nfc_match[] = { { .compatible = "fsl,mpc5121-nfc", }, {}, }; From 5e75e86e6d1561d5ae8e38412f93609475f19ed1 Mon Sep 17 00:00:00 2001 From: Bill Pemberton Date: Mon, 19 Nov 2012 13:25:12 -0500 Subject: [PATCH 68/96] mtd: remove use of __devinitconst CONFIG_HOTPLUG is going away as an option so __devinitconst is no longer needed. Signed-off-by: Bill Pemberton Signed-off-by: Artem Bityutskiy --- drivers/mtd/maps/bfin-async-flash.c | 2 +- drivers/mtd/maps/gpio-addr-flash.c | 2 +- drivers/mtd/maps/lantiq-flash.c | 2 +- 3 files changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/mtd/maps/bfin-async-flash.c b/drivers/mtd/maps/bfin-async-flash.c index 658a7d06b5e..6057c640428 100644 --- a/drivers/mtd/maps/bfin-async-flash.c +++ b/drivers/mtd/maps/bfin-async-flash.c @@ -30,7 +30,7 @@ #include #include -#define pr_devinit(fmt, args...) ({ static const __devinitconst char __fmt[] = fmt; printk(__fmt, ## args); }) +#define pr_devinit(fmt, args...) ({ static const char __fmt[] = fmt; printk(__fmt, ## args); }) #define DRIVER_NAME "bfin-async-flash" diff --git a/drivers/mtd/maps/gpio-addr-flash.c b/drivers/mtd/maps/gpio-addr-flash.c index 9a6a3e15377..4babe04dda5 100644 --- a/drivers/mtd/maps/gpio-addr-flash.c +++ b/drivers/mtd/maps/gpio-addr-flash.c @@ -26,7 +26,7 @@ #include #include -#define pr_devinit(fmt, args...) ({ static const __devinitconst char __fmt[] = fmt; printk(__fmt, ## args); }) +#define pr_devinit(fmt, args...) ({ static const char __fmt[] = fmt; printk(__fmt, ## args); }) #define DRIVER_NAME "gpio-addr-flash" #define PFX DRIVER_NAME ": " diff --git a/drivers/mtd/maps/lantiq-flash.c b/drivers/mtd/maps/lantiq-flash.c index 58d1f61a70b..0cf6c73070f 100644 --- a/drivers/mtd/maps/lantiq-flash.c +++ b/drivers/mtd/maps/lantiq-flash.c @@ -45,7 +45,7 @@ struct ltq_mtd { }; static const char ltq_map_name[] = "ltq_nor"; -static const char *ltq_probe_types[] __devinitconst = { +static const char *ltq_probe_types[] = { "cmdlinepart", "ofpart", NULL }; static map_word From 810b7e060c14110d8f580daaf77fab3a7d950483 Mon Sep 17 00:00:00 2001 From: Bill Pemberton Date: Mon, 19 Nov 2012 13:26:04 -0500 Subject: [PATCH 69/96] mtd: remove use of __devexit CONFIG_HOTPLUG is going away as an option so __devexit is no longer needed. Signed-off-by: Bill Pemberton Signed-off-by: Artem Bityutskiy --- drivers/mtd/devices/bcm47xxsflash.c | 2 +- drivers/mtd/devices/block2mtd.c | 2 +- drivers/mtd/devices/m25p80.c | 2 +- drivers/mtd/devices/mtd_dataflash.c | 2 +- drivers/mtd/devices/spear_smi.c | 2 +- drivers/mtd/devices/sst25l.c | 2 +- drivers/mtd/maps/amd76xrom.c | 2 +- drivers/mtd/maps/autcpu12-nvram.c | 2 +- drivers/mtd/maps/bfin-async-flash.c | 2 +- drivers/mtd/maps/ck804xrom.c | 2 +- drivers/mtd/maps/esb2rom.c | 2 +- drivers/mtd/maps/gpio-addr-flash.c | 2 +- drivers/mtd/maps/ichxrom.c | 2 +- drivers/mtd/maps/intel_vr_nor.c | 8 ++++---- drivers/mtd/maps/lantiq-flash.c | 2 +- drivers/mtd/maps/pci.c | 2 +- drivers/mtd/maps/pismo.c | 2 +- drivers/mtd/maps/pxa2xx-flash.c | 2 +- drivers/mtd/maps/scb2_flash.c | 2 +- drivers/mtd/maps/sun_uflash.c | 2 +- drivers/mtd/maps/vmu-flash.c | 4 ++-- drivers/mtd/nand/ams-delta.c | 2 +- drivers/mtd/nand/au1550nd.c | 2 +- drivers/mtd/nand/bf5xx_nand.c | 2 +- drivers/mtd/nand/cafe_nand.c | 2 +- drivers/mtd/nand/denali_dt.c | 2 +- drivers/mtd/nand/denali_pci.c | 2 +- drivers/mtd/nand/fsl_upm.c | 2 +- drivers/mtd/nand/gpio.c | 2 +- drivers/mtd/nand/gpmi-nand/gpmi-nand.c | 2 +- drivers/mtd/nand/jz4740_nand.c | 2 +- drivers/mtd/nand/lpc32xx_mlc.c | 2 +- drivers/mtd/nand/lpc32xx_slc.c | 2 +- drivers/mtd/nand/mpc5121_nfc.c | 2 +- drivers/mtd/nand/mxc_nand.c | 2 +- drivers/mtd/nand/ndfc.c | 2 +- drivers/mtd/nand/nuc900_nand.c | 2 +- drivers/mtd/nand/orion_nand.c | 2 +- drivers/mtd/nand/pasemi_nand.c | 2 +- drivers/mtd/nand/plat_nand.c | 2 +- drivers/mtd/nand/sh_flctl.c | 2 +- drivers/mtd/nand/sharpsl.c | 2 +- drivers/mtd/nand/socrates_nand.c | 2 +- drivers/mtd/onenand/generic.c | 2 +- drivers/mtd/onenand/omap2.c | 2 +- drivers/mtd/onenand/samsung.c | 2 +- 46 files changed, 50 insertions(+), 50 deletions(-) diff --git a/drivers/mtd/devices/bcm47xxsflash.c b/drivers/mtd/devices/bcm47xxsflash.c index 113aced6499..4714584aa99 100644 --- a/drivers/mtd/devices/bcm47xxsflash.c +++ b/drivers/mtd/devices/bcm47xxsflash.c @@ -66,7 +66,7 @@ out: return err; } -static int __devexit bcm47xxsflash_remove(struct platform_device *pdev) +static int bcm47xxsflash_remove(struct platform_device *pdev) { struct bcma_sflash *sflash = dev_get_platdata(&pdev->dev); diff --git a/drivers/mtd/devices/block2mtd.c b/drivers/mtd/devices/block2mtd.c index 681e2ee0f2d..8debac9efde 100644 --- a/drivers/mtd/devices/block2mtd.c +++ b/drivers/mtd/devices/block2mtd.c @@ -433,7 +433,7 @@ static int __init block2mtd_init(void) } -static void __devexit block2mtd_exit(void) +static void block2mtd_exit(void) { struct list_head *pos, *next; diff --git a/drivers/mtd/devices/m25p80.c b/drivers/mtd/devices/m25p80.c index ae43b015400..f402b67a531 100644 --- a/drivers/mtd/devices/m25p80.c +++ b/drivers/mtd/devices/m25p80.c @@ -972,7 +972,7 @@ static int m25p_probe(struct spi_device *spi) } -static int __devexit m25p_remove(struct spi_device *spi) +static int m25p_remove(struct spi_device *spi) { struct m25p *flash = dev_get_drvdata(&spi->dev); int status; diff --git a/drivers/mtd/devices/mtd_dataflash.c b/drivers/mtd/devices/mtd_dataflash.c index 0b3f17361ac..0caefb400f0 100644 --- a/drivers/mtd/devices/mtd_dataflash.c +++ b/drivers/mtd/devices/mtd_dataflash.c @@ -897,7 +897,7 @@ static int dataflash_probe(struct spi_device *spi) return status; } -static int __devexit dataflash_remove(struct spi_device *spi) +static int dataflash_remove(struct spi_device *spi) { struct dataflash *flash = dev_get_drvdata(&spi->dev); int status; diff --git a/drivers/mtd/devices/spear_smi.c b/drivers/mtd/devices/spear_smi.c index a30cd27ab91..2d2c2a5d4d2 100644 --- a/drivers/mtd/devices/spear_smi.c +++ b/drivers/mtd/devices/spear_smi.c @@ -1016,7 +1016,7 @@ err: * * free all allocations and delete the partitions. */ -static int __devexit spear_smi_remove(struct platform_device *pdev) +static int spear_smi_remove(struct platform_device *pdev) { struct spear_smi *dev; struct spear_snor_flash *flash; diff --git a/drivers/mtd/devices/sst25l.c b/drivers/mtd/devices/sst25l.c index e4f233941bf..8091b016369 100644 --- a/drivers/mtd/devices/sst25l.c +++ b/drivers/mtd/devices/sst25l.c @@ -411,7 +411,7 @@ static int sst25l_probe(struct spi_device *spi) return 0; } -static int __devexit sst25l_remove(struct spi_device *spi) +static int sst25l_remove(struct spi_device *spi) { struct sst25l_flash *flash = dev_get_drvdata(&spi->dev); int ret; diff --git a/drivers/mtd/maps/amd76xrom.c b/drivers/mtd/maps/amd76xrom.c index 1a4f671181f..31ee5c8dd5f 100644 --- a/drivers/mtd/maps/amd76xrom.c +++ b/drivers/mtd/maps/amd76xrom.c @@ -289,7 +289,7 @@ static int amd76xrom_init_one (struct pci_dev *pdev, } -static void __devexit amd76xrom_remove_one (struct pci_dev *pdev) +static void amd76xrom_remove_one (struct pci_dev *pdev) { struct amd76xrom_window *window = &amd76xrom_window; diff --git a/drivers/mtd/maps/autcpu12-nvram.c b/drivers/mtd/maps/autcpu12-nvram.c index b8c858913bb..a2dc2ae4b24 100644 --- a/drivers/mtd/maps/autcpu12-nvram.c +++ b/drivers/mtd/maps/autcpu12-nvram.c @@ -105,7 +105,7 @@ static int autcpu12_nvram_probe(struct platform_device *pdev) return -ENOMEM; } -static int __devexit autcpu12_nvram_remove(struct platform_device *pdev) +static int autcpu12_nvram_remove(struct platform_device *pdev) { struct autcpu12_nvram_priv *priv = platform_get_drvdata(pdev); diff --git a/drivers/mtd/maps/bfin-async-flash.c b/drivers/mtd/maps/bfin-async-flash.c index 6057c640428..7d484de4abe 100644 --- a/drivers/mtd/maps/bfin-async-flash.c +++ b/drivers/mtd/maps/bfin-async-flash.c @@ -172,7 +172,7 @@ static int bfin_flash_probe(struct platform_device *pdev) return 0; } -static int __devexit bfin_flash_remove(struct platform_device *pdev) +static int bfin_flash_remove(struct platform_device *pdev) { struct async_state *state = platform_get_drvdata(pdev); gpio_free(state->enet_flash_pin); diff --git a/drivers/mtd/maps/ck804xrom.c b/drivers/mtd/maps/ck804xrom.c index 65fedb9f296..0ac41f2e301 100644 --- a/drivers/mtd/maps/ck804xrom.c +++ b/drivers/mtd/maps/ck804xrom.c @@ -320,7 +320,7 @@ static int ck804xrom_init_one (struct pci_dev *pdev, } -static void __devexit ck804xrom_remove_one (struct pci_dev *pdev) +static void ck804xrom_remove_one (struct pci_dev *pdev) { struct ck804xrom_window *window = &ck804xrom_window; diff --git a/drivers/mtd/maps/esb2rom.c b/drivers/mtd/maps/esb2rom.c index 664303f11f0..6d6cb8857e4 100644 --- a/drivers/mtd/maps/esb2rom.c +++ b/drivers/mtd/maps/esb2rom.c @@ -378,7 +378,7 @@ static int esb2rom_init_one(struct pci_dev *pdev, return 0; } -static void __devexit esb2rom_remove_one (struct pci_dev *pdev) +static void esb2rom_remove_one (struct pci_dev *pdev) { struct esb2rom_window *window = &esb2rom_window; esb2rom_cleanup(window); diff --git a/drivers/mtd/maps/gpio-addr-flash.c b/drivers/mtd/maps/gpio-addr-flash.c index 4babe04dda5..41aa8db3602 100644 --- a/drivers/mtd/maps/gpio-addr-flash.c +++ b/drivers/mtd/maps/gpio-addr-flash.c @@ -258,7 +258,7 @@ static int gpio_flash_probe(struct platform_device *pdev) return 0; } -static int __devexit gpio_flash_remove(struct platform_device *pdev) +static int gpio_flash_remove(struct platform_device *pdev) { struct async_state *state = platform_get_drvdata(pdev); size_t i = 0; diff --git a/drivers/mtd/maps/ichxrom.c b/drivers/mtd/maps/ichxrom.c index 9673601c383..03d60efda27 100644 --- a/drivers/mtd/maps/ichxrom.c +++ b/drivers/mtd/maps/ichxrom.c @@ -315,7 +315,7 @@ static int ichxrom_init_one (struct pci_dev *pdev, } -static void __devexit ichxrom_remove_one (struct pci_dev *pdev) +static void ichxrom_remove_one (struct pci_dev *pdev) { struct ichxrom_window *window = &ichxrom_window; ichxrom_cleanup(window); diff --git a/drivers/mtd/maps/intel_vr_nor.c b/drivers/mtd/maps/intel_vr_nor.c index 1694c03e488..3ee2ad1dcbe 100644 --- a/drivers/mtd/maps/intel_vr_nor.c +++ b/drivers/mtd/maps/intel_vr_nor.c @@ -63,7 +63,7 @@ struct vr_nor_mtd { #define TIMING_BYTE_EN (1 << 0) /* 8-bit vs 16-bit bus */ #define TIMING_MASK 0x3FFF0000 -static void __devexit vr_nor_destroy_partitions(struct vr_nor_mtd *p) +static void vr_nor_destroy_partitions(struct vr_nor_mtd *p) { mtd_device_unregister(p->info); } @@ -75,7 +75,7 @@ static int vr_nor_init_partitions(struct vr_nor_mtd *p) return mtd_device_parse_register(p->info, NULL, NULL, NULL, 0); } -static void __devexit vr_nor_destroy_mtd_setup(struct vr_nor_mtd *p) +static void vr_nor_destroy_mtd_setup(struct vr_nor_mtd *p) { map_destroy(p->info); } @@ -96,7 +96,7 @@ static int vr_nor_mtd_setup(struct vr_nor_mtd *p) return 0; } -static void __devexit vr_nor_destroy_maps(struct vr_nor_mtd *p) +static void vr_nor_destroy_maps(struct vr_nor_mtd *p) { unsigned int exp_timing_cs0; @@ -176,7 +176,7 @@ static struct pci_device_id vr_nor_pci_ids[] = { {0,} }; -static void __devexit vr_nor_pci_remove(struct pci_dev *dev) +static void vr_nor_pci_remove(struct pci_dev *dev) { struct vr_nor_mtd *p = pci_get_drvdata(dev); diff --git a/drivers/mtd/maps/lantiq-flash.c b/drivers/mtd/maps/lantiq-flash.c index 0cf6c73070f..3c3c791eb96 100644 --- a/drivers/mtd/maps/lantiq-flash.c +++ b/drivers/mtd/maps/lantiq-flash.c @@ -185,7 +185,7 @@ err_out: return err; } -static int __devexit +static int ltq_mtd_remove(struct platform_device *pdev) { struct ltq_mtd *ltq_mtd = platform_get_drvdata(pdev); diff --git a/drivers/mtd/maps/pci.c b/drivers/mtd/maps/pci.c index 81a8caf3bd1..ed82914966f 100644 --- a/drivers/mtd/maps/pci.c +++ b/drivers/mtd/maps/pci.c @@ -308,7 +308,7 @@ out: return err; } -static void __devexit +static void mtd_pci_remove(struct pci_dev *dev) { struct mtd_info *mtd = pci_get_drvdata(dev); diff --git a/drivers/mtd/maps/pismo.c b/drivers/mtd/maps/pismo.c index 01db0d0b076..afea93b515d 100644 --- a/drivers/mtd/maps/pismo.c +++ b/drivers/mtd/maps/pismo.c @@ -197,7 +197,7 @@ static void pismo_add_one(struct pismo_data *pismo, int i, } } -static int __devexit pismo_remove(struct i2c_client *client) +static int pismo_remove(struct i2c_client *client) { struct pismo_data *pismo = i2c_get_clientdata(client); int i; diff --git a/drivers/mtd/maps/pxa2xx-flash.c b/drivers/mtd/maps/pxa2xx-flash.c index b5120f9e984..43e3dbb976d 100644 --- a/drivers/mtd/maps/pxa2xx-flash.c +++ b/drivers/mtd/maps/pxa2xx-flash.c @@ -105,7 +105,7 @@ static int pxa2xx_flash_probe(struct platform_device *pdev) return 0; } -static int __devexit pxa2xx_flash_remove(struct platform_device *dev) +static int pxa2xx_flash_remove(struct platform_device *dev) { struct pxa2xx_flash_info *info = platform_get_drvdata(dev); diff --git a/drivers/mtd/maps/scb2_flash.c b/drivers/mtd/maps/scb2_flash.c index bb1857f70bb..71796137e97 100644 --- a/drivers/mtd/maps/scb2_flash.c +++ b/drivers/mtd/maps/scb2_flash.c @@ -197,7 +197,7 @@ scb2_flash_probe(struct pci_dev *dev, const struct pci_device_id *ent) return 0; } -static void __devexit +static void scb2_flash_remove(struct pci_dev *dev) { if (!scb2_mtd) diff --git a/drivers/mtd/maps/sun_uflash.c b/drivers/mtd/maps/sun_uflash.c index 2618e4dd271..d467f3b11c9 100644 --- a/drivers/mtd/maps/sun_uflash.c +++ b/drivers/mtd/maps/sun_uflash.c @@ -121,7 +121,7 @@ static int uflash_probe(struct platform_device *op) return uflash_devinit(op, dp); } -static int __devexit uflash_remove(struct platform_device *op) +static int uflash_remove(struct platform_device *op) { struct uflash_dev *up = dev_get_drvdata(&op->dev); diff --git a/drivers/mtd/maps/vmu-flash.c b/drivers/mtd/maps/vmu-flash.c index 84c3f5a99e1..6b223cfe92b 100644 --- a/drivers/mtd/maps/vmu-flash.c +++ b/drivers/mtd/maps/vmu-flash.c @@ -690,7 +690,7 @@ fail_nomem: return error; } -static void __devexit vmu_disconnect(struct maple_device *mdev) +static void vmu_disconnect(struct maple_device *mdev) { struct memcard *card; struct mdev_part *mpart; @@ -789,7 +789,7 @@ static int probe_maple_vmu(struct device *dev) return 0; } -static int __devexit remove_maple_vmu(struct device *dev) +static int remove_maple_vmu(struct device *dev) { struct maple_device *mdev = to_maple_dev(dev); diff --git a/drivers/mtd/nand/ams-delta.c b/drivers/mtd/nand/ams-delta.c index 703e3738713..f1d71cdc8aa 100644 --- a/drivers/mtd/nand/ams-delta.c +++ b/drivers/mtd/nand/ams-delta.c @@ -270,7 +270,7 @@ out_free: /* * Clean up routine */ -static int __devexit ams_delta_cleanup(struct platform_device *pdev) +static int ams_delta_cleanup(struct platform_device *pdev) { void __iomem *io_base = platform_get_drvdata(pdev); diff --git a/drivers/mtd/nand/au1550nd.c b/drivers/mtd/nand/au1550nd.c index 73d6423680c..217459d02b2 100644 --- a/drivers/mtd/nand/au1550nd.c +++ b/drivers/mtd/nand/au1550nd.c @@ -491,7 +491,7 @@ out1: return ret; } -static int __devexit au1550nd_remove(struct platform_device *pdev) +static int au1550nd_remove(struct platform_device *pdev) { struct au1550nd_ctx *ctx = platform_get_drvdata(pdev); struct resource *r = platform_get_resource(pdev, IORESOURCE_MEM, 0); diff --git a/drivers/mtd/nand/bf5xx_nand.c b/drivers/mtd/nand/bf5xx_nand.c index 56de9b67638..4271e948d1e 100644 --- a/drivers/mtd/nand/bf5xx_nand.c +++ b/drivers/mtd/nand/bf5xx_nand.c @@ -667,7 +667,7 @@ static int bf5xx_nand_add_partition(struct bf5xx_nand_info *info) return mtd_device_register(mtd, parts, nr); } -static int __devexit bf5xx_nand_remove(struct platform_device *pdev) +static int bf5xx_nand_remove(struct platform_device *pdev) { struct bf5xx_nand_info *info = to_nand_info(pdev); diff --git a/drivers/mtd/nand/cafe_nand.c b/drivers/mtd/nand/cafe_nand.c index 480834a9838..010d6126653 100644 --- a/drivers/mtd/nand/cafe_nand.c +++ b/drivers/mtd/nand/cafe_nand.c @@ -821,7 +821,7 @@ static int cafe_nand_probe(struct pci_dev *pdev, return err; } -static void __devexit cafe_nand_remove(struct pci_dev *pdev) +static void cafe_nand_remove(struct pci_dev *pdev) { struct mtd_info *mtd = pci_get_drvdata(pdev); struct cafe_priv *cafe = mtd->priv; diff --git a/drivers/mtd/nand/denali_dt.c b/drivers/mtd/nand/denali_dt.c index f9b593c81db..546f8cb5688 100644 --- a/drivers/mtd/nand/denali_dt.c +++ b/drivers/mtd/nand/denali_dt.c @@ -129,7 +129,7 @@ out_disable_clk: return ret; } -static int __devexit denali_dt_remove(struct platform_device *ofdev) +static int denali_dt_remove(struct platform_device *ofdev) { struct denali_dt *dt = platform_get_drvdata(ofdev); diff --git a/drivers/mtd/nand/denali_pci.c b/drivers/mtd/nand/denali_pci.c index f1f8f896fcc..e3e46623b2b 100644 --- a/drivers/mtd/nand/denali_pci.c +++ b/drivers/mtd/nand/denali_pci.c @@ -137,7 +137,7 @@ static int denali_init_pci(void) } module_init(denali_init_pci); -static void __devexit denali_exit_pci(void) +static void denali_exit_pci(void) { pci_unregister_driver(&denali_pci_driver); } diff --git a/drivers/mtd/nand/fsl_upm.c b/drivers/mtd/nand/fsl_upm.c index a5643252584..5a8f5c4ce51 100644 --- a/drivers/mtd/nand/fsl_upm.c +++ b/drivers/mtd/nand/fsl_upm.c @@ -318,7 +318,7 @@ err1: return ret; } -static int __devexit fun_remove(struct platform_device *ofdev) +static int fun_remove(struct platform_device *ofdev) { struct fsl_upm_nand *fun = dev_get_drvdata(&ofdev->dev); int i; diff --git a/drivers/mtd/nand/gpio.c b/drivers/mtd/nand/gpio.c index 45f1a240bcb..7aec5690289 100644 --- a/drivers/mtd/nand/gpio.c +++ b/drivers/mtd/nand/gpio.c @@ -231,7 +231,7 @@ gpio_nand_get_io_sync(struct platform_device *pdev) return platform_get_resource(pdev, IORESOURCE_MEM, 1); } -static int __devexit gpio_nand_remove(struct platform_device *dev) +static int gpio_nand_remove(struct platform_device *dev) { struct gpiomtd *gpiomtd = platform_get_drvdata(dev); struct resource *res; diff --git a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c index 2a251c95a70..5cd141f7bfc 100644 --- a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c +++ b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c @@ -1675,7 +1675,7 @@ exit_acquire_resources: return ret; } -static int __devexit gpmi_nand_remove(struct platform_device *pdev) +static int gpmi_nand_remove(struct platform_device *pdev) { struct gpmi_nand_data *this = platform_get_drvdata(pdev); diff --git a/drivers/mtd/nand/jz4740_nand.c b/drivers/mtd/nand/jz4740_nand.c index 5396b6ceb08..72ac26e1ddf 100644 --- a/drivers/mtd/nand/jz4740_nand.c +++ b/drivers/mtd/nand/jz4740_nand.c @@ -541,7 +541,7 @@ err_free: return ret; } -static int __devexit jz_nand_remove(struct platform_device *pdev) +static int jz_nand_remove(struct platform_device *pdev) { struct jz_nand *nand = platform_get_drvdata(pdev); struct jz_nand_platform_data *pdata = pdev->dev.platform_data; diff --git a/drivers/mtd/nand/lpc32xx_mlc.c b/drivers/mtd/nand/lpc32xx_mlc.c index bb83daf9c73..f182befa736 100644 --- a/drivers/mtd/nand/lpc32xx_mlc.c +++ b/drivers/mtd/nand/lpc32xx_mlc.c @@ -845,7 +845,7 @@ err_exit1: /* * Remove NAND device */ -static int __devexit lpc32xx_nand_remove(struct platform_device *pdev) +static int lpc32xx_nand_remove(struct platform_device *pdev) { struct lpc32xx_nand_host *host = platform_get_drvdata(pdev); struct mtd_info *mtd = &host->mtd; diff --git a/drivers/mtd/nand/lpc32xx_slc.c b/drivers/mtd/nand/lpc32xx_slc.c index 17267f2819d..030b78c6289 100644 --- a/drivers/mtd/nand/lpc32xx_slc.c +++ b/drivers/mtd/nand/lpc32xx_slc.c @@ -949,7 +949,7 @@ err_exit1: /* * Remove NAND device. */ -static int __devexit lpc32xx_nand_remove(struct platform_device *pdev) +static int lpc32xx_nand_remove(struct platform_device *pdev) { uint32_t tmp; struct lpc32xx_nand_host *host = platform_get_drvdata(pdev); diff --git a/drivers/mtd/nand/mpc5121_nfc.c b/drivers/mtd/nand/mpc5121_nfc.c index 09f75a57e83..3c9cdcbc4cb 100644 --- a/drivers/mtd/nand/mpc5121_nfc.c +++ b/drivers/mtd/nand/mpc5121_nfc.c @@ -827,7 +827,7 @@ error: return retval; } -static int __devexit mpc5121_nfc_remove(struct platform_device *op) +static int mpc5121_nfc_remove(struct platform_device *op) { struct device *dev = &op->dev; struct mtd_info *mtd = dev_get_drvdata(dev); diff --git a/drivers/mtd/nand/mxc_nand.c b/drivers/mtd/nand/mxc_nand.c index 77a03cf64dd..4aef6a355d5 100644 --- a/drivers/mtd/nand/mxc_nand.c +++ b/drivers/mtd/nand/mxc_nand.c @@ -1538,7 +1538,7 @@ escan: return err; } -static int __devexit mxcnd_remove(struct platform_device *pdev) +static int mxcnd_remove(struct platform_device *pdev) { struct mxc_nand_host *host = platform_get_drvdata(pdev); diff --git a/drivers/mtd/nand/ndfc.c b/drivers/mtd/nand/ndfc.c index 6fa4588d477..8e148f1478f 100644 --- a/drivers/mtd/nand/ndfc.c +++ b/drivers/mtd/nand/ndfc.c @@ -256,7 +256,7 @@ static int ndfc_probe(struct platform_device *ofdev) return 0; } -static int __devexit ndfc_remove(struct platform_device *ofdev) +static int ndfc_remove(struct platform_device *ofdev) { struct ndfc_controller *ndfc = dev_get_drvdata(&ofdev->dev); diff --git a/drivers/mtd/nand/nuc900_nand.c b/drivers/mtd/nand/nuc900_nand.c index 00766dfe4d3..a6191198d25 100644 --- a/drivers/mtd/nand/nuc900_nand.c +++ b/drivers/mtd/nand/nuc900_nand.c @@ -317,7 +317,7 @@ fail1: kfree(nuc900_nand); return retval; } -static int __devexit nuc900_nand_remove(struct platform_device *pdev) +static int nuc900_nand_remove(struct platform_device *pdev) { struct nuc900_nand *nuc900_nand = platform_get_drvdata(pdev); struct resource *res; diff --git a/drivers/mtd/nand/orion_nand.c b/drivers/mtd/nand/orion_nand.c index e6b296dcb12..cd72b9299f6 100644 --- a/drivers/mtd/nand/orion_nand.c +++ b/drivers/mtd/nand/orion_nand.c @@ -194,7 +194,7 @@ no_res: return ret; } -static int __devexit orion_nand_remove(struct platform_device *pdev) +static int orion_nand_remove(struct platform_device *pdev) { struct mtd_info *mtd = platform_get_drvdata(pdev); struct nand_chip *nc = mtd->priv; diff --git a/drivers/mtd/nand/pasemi_nand.c b/drivers/mtd/nand/pasemi_nand.c index 2e477cb20b7..5a67082c07e 100644 --- a/drivers/mtd/nand/pasemi_nand.c +++ b/drivers/mtd/nand/pasemi_nand.c @@ -184,7 +184,7 @@ static int pasemi_nand_probe(struct platform_device *ofdev) return err; } -static int __devexit pasemi_nand_remove(struct platform_device *ofdev) +static int pasemi_nand_remove(struct platform_device *ofdev) { struct nand_chip *chip; diff --git a/drivers/mtd/nand/plat_nand.c b/drivers/mtd/nand/plat_nand.c index 32e2996c9e7..c004566a9ad 100644 --- a/drivers/mtd/nand/plat_nand.c +++ b/drivers/mtd/nand/plat_nand.c @@ -134,7 +134,7 @@ out_free: /* * Remove a NAND device. */ -static int __devexit plat_nand_remove(struct platform_device *pdev) +static int plat_nand_remove(struct platform_device *pdev) { struct plat_nand_data *data = platform_get_drvdata(pdev); struct platform_nand_data *pdata = pdev->dev.platform_data; diff --git a/drivers/mtd/nand/sh_flctl.c b/drivers/mtd/nand/sh_flctl.c index e45d6bd2901..2a215962071 100644 --- a/drivers/mtd/nand/sh_flctl.c +++ b/drivers/mtd/nand/sh_flctl.c @@ -1198,7 +1198,7 @@ err_iomap: return ret; } -static int __devexit flctl_remove(struct platform_device *pdev) +static int flctl_remove(struct platform_device *pdev) { struct sh_flctl *flctl = platform_get_drvdata(pdev); diff --git a/drivers/mtd/nand/sharpsl.c b/drivers/mtd/nand/sharpsl.c index 870f0ff76c5..127bc427182 100644 --- a/drivers/mtd/nand/sharpsl.c +++ b/drivers/mtd/nand/sharpsl.c @@ -205,7 +205,7 @@ err_get_res: /* * Clean up routine */ -static int __devexit sharpsl_nand_remove(struct platform_device *pdev) +static int sharpsl_nand_remove(struct platform_device *pdev) { struct sharpsl_nand *sharpsl = platform_get_drvdata(pdev); diff --git a/drivers/mtd/nand/socrates_nand.c b/drivers/mtd/nand/socrates_nand.c index c9791fd1ee5..09dde7d2717 100644 --- a/drivers/mtd/nand/socrates_nand.c +++ b/drivers/mtd/nand/socrates_nand.c @@ -220,7 +220,7 @@ out: /* * Remove a NAND device. */ -static int __devexit socrates_nand_remove(struct platform_device *ofdev) +static int socrates_nand_remove(struct platform_device *ofdev) { struct socrates_nand_host *host = dev_get_drvdata(&ofdev->dev); struct mtd_info *mtd = &host->mtd; diff --git a/drivers/mtd/onenand/generic.c b/drivers/mtd/onenand/generic.c index 03e6af34242..9f11562f849 100644 --- a/drivers/mtd/onenand/generic.c +++ b/drivers/mtd/onenand/generic.c @@ -88,7 +88,7 @@ out_free_info: return err; } -static int __devexit generic_onenand_remove(struct platform_device *pdev) +static int generic_onenand_remove(struct platform_device *pdev) { struct onenand_info *info = platform_get_drvdata(pdev); struct resource *res = pdev->resource; diff --git a/drivers/mtd/onenand/omap2.c b/drivers/mtd/onenand/omap2.c index 8c10a2f5415..b364e6c57d2 100644 --- a/drivers/mtd/onenand/omap2.c +++ b/drivers/mtd/onenand/omap2.c @@ -787,7 +787,7 @@ err_kfree: return r; } -static int __devexit omap2_onenand_remove(struct platform_device *pdev) +static int omap2_onenand_remove(struct platform_device *pdev) { struct omap2_onenand *c = dev_get_drvdata(&pdev->dev); diff --git a/drivers/mtd/onenand/samsung.c b/drivers/mtd/onenand/samsung.c index 3d462cbcdbe..33f2a8fb8df 100644 --- a/drivers/mtd/onenand/samsung.c +++ b/drivers/mtd/onenand/samsung.c @@ -1053,7 +1053,7 @@ onenand_fail: return err; } -static int __devexit s3c_onenand_remove(struct platform_device *pdev) +static int s3c_onenand_remove(struct platform_device *pdev) { struct mtd_info *mtd = platform_get_drvdata(pdev); From 7bf350b7245b40fe6a57b79ec4a04c85195dc648 Mon Sep 17 00:00:00 2001 From: Artem Bityutskiy Date: Thu, 22 Nov 2012 12:16:28 +0200 Subject: [PATCH 70/96] mtd: fix a number of checkpatch complaints While checking the "__devinit" removal patches with checkpatch.pl, I noticed several warnings related to a space between the function name and '(', as well as long lines. I fixed the warnings up in this patch. Signed-off-by: Artem Bityutskiy --- drivers/mtd/devices/mtd_dataflash.c | 2 +- drivers/mtd/maps/amd76xrom.c | 7 +++---- drivers/mtd/maps/bfin-async-flash.c | 3 ++- drivers/mtd/maps/ck804xrom.c | 6 +++--- drivers/mtd/maps/esb2rom.c | 2 +- drivers/mtd/maps/gpio-addr-flash.c | 6 ++++-- drivers/mtd/maps/ichxrom.c | 6 +++--- drivers/mtd/maps/sa1100-flash.c | 3 ++- drivers/mtd/nand/jz4740_nand.c | 8 ++++++-- 9 files changed, 25 insertions(+), 18 deletions(-) diff --git a/drivers/mtd/devices/mtd_dataflash.c b/drivers/mtd/devices/mtd_dataflash.c index 0caefb400f0..ea7ea7b595d 100644 --- a/drivers/mtd/devices/mtd_dataflash.c +++ b/drivers/mtd/devices/mtd_dataflash.c @@ -705,7 +705,7 @@ struct flash_info { #define IS_POW2PS 0x0001 /* uses 2^N byte pages */ }; -static struct flash_info dataflash_data [] = { +static struct flash_info dataflash_data[] = { /* * NOTE: chips with SUP_POW2PS (rev D and up) need two entries, diff --git a/drivers/mtd/maps/amd76xrom.c b/drivers/mtd/maps/amd76xrom.c index 31ee5c8dd5f..f7207b0a76d 100644 --- a/drivers/mtd/maps/amd76xrom.c +++ b/drivers/mtd/maps/amd76xrom.c @@ -100,8 +100,8 @@ static void amd76xrom_cleanup(struct amd76xrom_window *window) } -static int amd76xrom_init_one (struct pci_dev *pdev, - const struct pci_device_id *ent) +static int amd76xrom_init_one(struct pci_dev *pdev, + const struct pci_device_id *ent) { static char *rom_probe_types[] = { "cfi_probe", "jedec_probe", NULL }; u8 byte; @@ -289,7 +289,7 @@ static int amd76xrom_init_one (struct pci_dev *pdev, } -static void amd76xrom_remove_one (struct pci_dev *pdev) +static void amd76xrom_remove_one(struct pci_dev *pdev) { struct amd76xrom_window *window = &amd76xrom_window; @@ -347,4 +347,3 @@ module_exit(cleanup_amd76xrom); MODULE_LICENSE("GPL"); MODULE_AUTHOR("Eric Biederman "); MODULE_DESCRIPTION("MTD map driver for BIOS chips on the AMD76X southbridge"); - diff --git a/drivers/mtd/maps/bfin-async-flash.c b/drivers/mtd/maps/bfin-async-flash.c index 7d484de4abe..f833edfaab7 100644 --- a/drivers/mtd/maps/bfin-async-flash.c +++ b/drivers/mtd/maps/bfin-async-flash.c @@ -30,7 +30,8 @@ #include #include -#define pr_devinit(fmt, args...) ({ static const char __fmt[] = fmt; printk(__fmt, ## args); }) +#define pr_devinit(fmt, args...) \ + ({ static const char __fmt[] = fmt; printk(__fmt, ## args); }) #define DRIVER_NAME "bfin-async-flash" diff --git a/drivers/mtd/maps/ck804xrom.c b/drivers/mtd/maps/ck804xrom.c index 0ac41f2e301..586a1c77e48 100644 --- a/drivers/mtd/maps/ck804xrom.c +++ b/drivers/mtd/maps/ck804xrom.c @@ -112,8 +112,8 @@ static void ck804xrom_cleanup(struct ck804xrom_window *window) } -static int ck804xrom_init_one (struct pci_dev *pdev, - const struct pci_device_id *ent) +static int ck804xrom_init_one(struct pci_dev *pdev, + const struct pci_device_id *ent) { static char *rom_probe_types[] = { "cfi_probe", "jedec_probe", NULL }; u8 byte; @@ -320,7 +320,7 @@ static int ck804xrom_init_one (struct pci_dev *pdev, } -static void ck804xrom_remove_one (struct pci_dev *pdev) +static void ck804xrom_remove_one(struct pci_dev *pdev) { struct ck804xrom_window *window = &ck804xrom_window; diff --git a/drivers/mtd/maps/esb2rom.c b/drivers/mtd/maps/esb2rom.c index 6d6cb8857e4..ff8681a2583 100644 --- a/drivers/mtd/maps/esb2rom.c +++ b/drivers/mtd/maps/esb2rom.c @@ -378,7 +378,7 @@ static int esb2rom_init_one(struct pci_dev *pdev, return 0; } -static void esb2rom_remove_one (struct pci_dev *pdev) +static void esb2rom_remove_one(struct pci_dev *pdev) { struct esb2rom_window *window = &esb2rom_window; esb2rom_cleanup(window); diff --git a/drivers/mtd/maps/gpio-addr-flash.c b/drivers/mtd/maps/gpio-addr-flash.c index 41aa8db3602..7b643de2500 100644 --- a/drivers/mtd/maps/gpio-addr-flash.c +++ b/drivers/mtd/maps/gpio-addr-flash.c @@ -26,7 +26,8 @@ #include #include -#define pr_devinit(fmt, args...) ({ static const char __fmt[] = fmt; printk(__fmt, ## args); }) +#define pr_devinit(fmt, args...) \ + ({ static const char __fmt[] = fmt; printk(__fmt, ## args); }) #define DRIVER_NAME "gpio-addr-flash" #define PFX DRIVER_NAME ": " @@ -142,7 +143,8 @@ static void gf_write(struct map_info *map, map_word d1, unsigned long ofs) * * See gf_copy_from() caveat. */ -static void gf_copy_to(struct map_info *map, unsigned long to, const void *from, ssize_t len) +static void gf_copy_to(struct map_info *map, unsigned long to, + const void *from, ssize_t len) { struct async_state *state = gf_map_info_to_state(map); diff --git a/drivers/mtd/maps/ichxrom.c b/drivers/mtd/maps/ichxrom.c index 03d60efda27..c7478e18f48 100644 --- a/drivers/mtd/maps/ichxrom.c +++ b/drivers/mtd/maps/ichxrom.c @@ -84,8 +84,8 @@ static void ichxrom_cleanup(struct ichxrom_window *window) } -static int ichxrom_init_one (struct pci_dev *pdev, - const struct pci_device_id *ent) +static int ichxrom_init_one(struct pci_dev *pdev, + const struct pci_device_id *ent) { static char *rom_probe_types[] = { "cfi_probe", "jedec_probe", NULL }; struct ichxrom_window *window = &ichxrom_window; @@ -315,7 +315,7 @@ static int ichxrom_init_one (struct pci_dev *pdev, } -static void ichxrom_remove_one (struct pci_dev *pdev) +static void ichxrom_remove_one(struct pci_dev *pdev) { struct ichxrom_window *window = &ichxrom_window; ichxrom_cleanup(window); diff --git a/drivers/mtd/maps/sa1100-flash.c b/drivers/mtd/maps/sa1100-flash.c index 7aebc82a5c6..f694417cf7e 100644 --- a/drivers/mtd/maps/sa1100-flash.c +++ b/drivers/mtd/maps/sa1100-flash.c @@ -149,7 +149,8 @@ static void sa1100_destroy(struct sa_info *info, struct flash_platform_data *pla plat->exit(); } -static struct sa_info *sa1100_setup_mtd(struct platform_device *pdev, struct flash_platform_data *plat) +static struct sa_info *sa1100_setup_mtd(struct platform_device *pdev, + struct flash_platform_data *plat) { struct sa_info *info; int nr, size, i, ret = 0; diff --git a/drivers/mtd/nand/jz4740_nand.c b/drivers/mtd/nand/jz4740_nand.c index 72ac26e1ddf..8d415f014e1 100644 --- a/drivers/mtd/nand/jz4740_nand.c +++ b/drivers/mtd/nand/jz4740_nand.c @@ -316,13 +316,17 @@ err: return ret; } -static inline void jz_nand_iounmap_resource(struct resource *res, void __iomem *base) +static inline void jz_nand_iounmap_resource(struct resource *res, + void __iomem *base) { iounmap(base); release_mem_region(res->start, resource_size(res)); } -static int jz_nand_detect_bank(struct platform_device *pdev, struct jz_nand *nand, unsigned char bank, size_t chipnr, uint8_t *nand_maf_id, uint8_t *nand_dev_id) { +static int jz_nand_detect_bank(struct platform_device *pdev, + struct jz_nand *nand, unsigned char bank, + size_t chipnr, uint8_t *nand_maf_id, + uint8_t *nand_dev_id) { int ret; int gpio; char gpio_name[9]; From d1f3b65d2d6fdb4bf0edd4b67e86e191af48daee Mon Sep 17 00:00:00 2001 From: Nathan Williams Date: Thu, 22 Nov 2012 10:42:52 +1100 Subject: [PATCH 71/96] mtd cs553x_nand: Initialise ecc.strength before nand_scan() Loading cs553x_nand with Hynix H27U1G8F2BTR NAND flash causes this bug: kernel BUG at drivers/mtd/nand/nand_base.c:3345! invalid opcode: 0000 [#1] Modules linked in: cs553x_nand(+) vfat fat usb_storage ehci_hcd usbcore usb_comr Pid: 436, comm: modprobe Not tainted 3.6.7 #1 EIP: 0060:[] EFLAGS: 00010296 CPU: 0 EIP is at nand_scan_tail+0x64c/0x69c EAX: 00000034 EBX: cea6ed98 ECX: 00000000 EDX: 00000000 ESI: cea6ec00 EDI: cea6ec00 EBP: 20000000 ESP: cdd17e48 DS: 007b ES: 007b FS: 0000 GS: 0000 SS: 0068 CR0: 8005003b CR2: 0804e119 CR3: 0d850000 CR4: 00000090 DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000 DR6: ffff0ff0 DR7: 00000400 Process modprobe (pid: 436, ti=cdd16000 task=cdd1c320 task.ti=cdd16000) Stack: c12e962c c118f7ef 00000003 cea6ed98 d014b25c 20000000 fffff007 00000001 00000000 cdd53b00 d014b000 c1001021 cdd53b00 d01493c0 cdd53b00 cdd53b00 d01493c0 c1047f83 d014b4a0 00000000 cdd17f9c ce4be454 cdd17f48 cdd1c320 Call Trace: [] ? nand_scan+0x1b/0x4d [] ? init_module+0x25c/0x2de [cs553x_nand] [] ? 0xd014afff [] ? do_one_initcall+0x21/0x111 [] ? sys_init_module+0xe4/0x1261 [] ? task_work_run+0x36/0x43 [] ? syscall_call+0x7/0xb Code: fa ff ff c7 86 d8 00 00 00 01 00 00 00 e9 5f fc ff ff 68 f8 26 2e c1 e8 a7 EIP: [] nand_scan_tail+0x64c/0x69c SS:ESP 0068:cdd17e48 Initialising ecc.strength before the call to nand_scan() fixes this. Signed-off-by: Nathan Williams Cc: stable@vger.kernel.org [3.4+] Acked-by: Brian Norris Acked-by: Mike Dunn Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/cs553x_nand.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/mtd/nand/cs553x_nand.c b/drivers/mtd/nand/cs553x_nand.c index adb6c3ef37f..2cdeab8bebc 100644 --- a/drivers/mtd/nand/cs553x_nand.c +++ b/drivers/mtd/nand/cs553x_nand.c @@ -237,6 +237,7 @@ static int __init cs553x_init_one(int cs, int mmio, unsigned long adr) this->ecc.hwctl = cs_enable_hwecc; this->ecc.calculate = cs_calculate_ecc; this->ecc.correct = nand_correct_data; + this->ecc.strength = 1; /* Enable the following for a flash based bad block table */ this->bbt_options = NAND_BBT_USE_FLASH; @@ -247,8 +248,6 @@ static int __init cs553x_init_one(int cs, int mmio, unsigned long adr) goto out_ior; } - this->ecc.strength = 1; - new_mtd->name = kasprintf(GFP_KERNEL, "cs553x_nand_cs%d", cs); cs553x_mtd[cs] = new_mtd; From 98a9e2450667e497246449f96eab06eb3fb4d24b Mon Sep 17 00:00:00 2001 From: Liming Wang Date: Thu, 22 Nov 2012 14:58:09 +0800 Subject: [PATCH 72/96] mtd: m25p80: modify info for Micron N25Q128 Micron N25Q128 has two types of flash: - One is for 1.8v supply voltage, prefixed with "n25q128a11" and the jedec code is 0x20bb18. - Another is for 3v supply voltage, prefixed with "n25q128a13" and the jedec code is 0x20ba18. So modify the original type info and add another type for Micron N25Q128. Signed-off-by: Liming Wang Signed-off-by: Artem Bityutskiy --- drivers/mtd/devices/m25p80.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/mtd/devices/m25p80.c b/drivers/mtd/devices/m25p80.c index f402b67a531..4eeeb2d7f6e 100644 --- a/drivers/mtd/devices/m25p80.c +++ b/drivers/mtd/devices/m25p80.c @@ -661,7 +661,8 @@ static const struct spi_device_id m25p_ids[] = { { "mx25l25655e", INFO(0xc22619, 0, 64 * 1024, 512, 0) }, /* Micron */ - { "n25q128", INFO(0x20ba18, 0, 64 * 1024, 256, 0) }, + { "n25q128a11", INFO(0x20bb18, 0, 64 * 1024, 256, 0) }, + { "n25q128a13", INFO(0x20ba18, 0, 64 * 1024, 256, 0) }, { "n25q256a", INFO(0x20ba19, 0, 64 * 1024, 512, SECT_4K) }, /* Spansion -- single (large) sector size only, at least From b0bb6903c8fca2d5ebef1f8ae63d420eb931bb1e Mon Sep 17 00:00:00 2001 From: Huang Shijie Date: Mon, 19 Nov 2012 14:43:29 +0800 Subject: [PATCH 73/96] mtd: remove the de-select chip code in nand_release_device() The nand_get_device() does not select the chip, but nand_release_device() does de-select the chip. It is really strange. With the current code, nand_sync() will de-select the chip, even if the chip has never been selected. To make the balance of select/de-select chip, it's better to remove the de-select chip code in nand_release_device() which makes the code more clear. Signed-off-by: Huang Shijie Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/nand_base.c | 35 +++++++++++++++++++++++++---------- 1 file changed, 25 insertions(+), 10 deletions(-) diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c index 6eef7fbe8fd..861a87d4d16 100644 --- a/drivers/mtd/nand/nand_base.c +++ b/drivers/mtd/nand/nand_base.c @@ -130,15 +130,12 @@ static int check_offs_len(struct mtd_info *mtd, * nand_release_device - [GENERIC] release chip * @mtd: MTD device structure * - * Deselect, release chip lock and wake up anyone waiting on the device. + * Release chip lock and wake up anyone waiting on the device. */ static void nand_release_device(struct mtd_info *mtd) { struct nand_chip *chip = mtd->priv; - /* De-select the NAND device */ - chip->select_chip(mtd, -1); - /* Release the controller and the chip */ spin_lock(&chip->controller->lock); chip->controller->active = NULL; @@ -333,8 +330,10 @@ static int nand_block_bad(struct mtd_info *mtd, loff_t ofs, int getchip) i++; } while (!res && i < 2 && (chip->bbt_options & NAND_BBT_SCAN2NDPAGE)); - if (getchip) + if (getchip) { + chip->select_chip(mtd, -1); nand_release_device(mtd); + } return res; } @@ -952,6 +951,7 @@ int nand_unlock(struct mtd_info *mtd, loff_t ofs, uint64_t len) ret = __nand_unlock(mtd, ofs, len, 0); out: + chip->select_chip(mtd, -1); nand_release_device(mtd); return ret; @@ -1016,6 +1016,7 @@ int nand_lock(struct mtd_info *mtd, loff_t ofs, uint64_t len) ret = __nand_unlock(mtd, ofs, len, 0x1); out: + chip->select_chip(mtd, -1); nand_release_device(mtd); return ret; @@ -1552,6 +1553,7 @@ static int nand_do_read_ops(struct mtd_info *mtd, loff_t from, chip->select_chip(mtd, chipnr); } } + chip->select_chip(mtd, -1); ops->retlen = ops->len - (size_t) readlen; if (oob) @@ -1806,6 +1808,7 @@ static int nand_do_read_oob(struct mtd_info *mtd, loff_t from, chip->select_chip(mtd, chipnr); } } + chip->select_chip(mtd, -1); ops->oobretlen = ops->ooblen - readlen; @@ -2188,8 +2191,10 @@ static int nand_do_write_ops(struct mtd_info *mtd, loff_t to, chip->select_chip(mtd, chipnr); /* Check, if it is write protected */ - if (nand_check_wp(mtd)) - return -EIO; + if (nand_check_wp(mtd)) { + ret = -EIO; + goto err_out; + } realpage = (int)(to >> chip->page_shift); page = realpage & chip->pagemask; @@ -2201,8 +2206,10 @@ static int nand_do_write_ops(struct mtd_info *mtd, loff_t to, chip->pagebuf = -1; /* Don't allow multipage oob writes with offset */ - if (oob && ops->ooboffs && (ops->ooboffs + ops->ooblen > oobmaxlen)) - return -EINVAL; + if (oob && ops->ooboffs && (ops->ooboffs + ops->ooblen > oobmaxlen)) { + ret = -EINVAL; + goto err_out; + } while (1) { int bytes = mtd->writesize; @@ -2253,6 +2260,9 @@ static int nand_do_write_ops(struct mtd_info *mtd, loff_t to, ops->retlen = ops->len - writelen; if (unlikely(oob)) ops->oobretlen = ops->ooblen; + +err_out: + chip->select_chip(mtd, -1); return ret; } @@ -2379,8 +2389,10 @@ static int nand_do_write_oob(struct mtd_info *mtd, loff_t to, chip->cmdfunc(mtd, NAND_CMD_RESET, -1, -1); /* Check, if it is write protected */ - if (nand_check_wp(mtd)) + if (nand_check_wp(mtd)) { + chip->select_chip(mtd, -1); return -EROFS; + } /* Invalidate the page cache, if we write to the cached page */ if (page == chip->pagebuf) @@ -2393,6 +2405,8 @@ static int nand_do_write_oob(struct mtd_info *mtd, loff_t to, else status = chip->ecc.write_oob(mtd, chip, page & chip->pagemask); + chip->select_chip(mtd, -1); + if (status) return status; @@ -2625,6 +2639,7 @@ erase_exit: ret = instr->state == MTD_ERASE_DONE ? 0 : -EIO; /* Deselect and wake up anyone waiting on the device */ + chip->select_chip(mtd, -1); nand_release_device(mtd); /* Do call back function */ From 6a8214aa3d323d2e185523ea112116759bc3c5ce Mon Sep 17 00:00:00 2001 From: Huang Shijie Date: Mon, 19 Nov 2012 14:43:30 +0800 Subject: [PATCH 74/96] mtd: remove the "chip" parameter in nand_get_device() There are two reasons to remove the "chip" parameter in nand_get_device(): [1] The nand_release_device() does not have the "chip" parameter. [2] We can get the nand_chip by the mtd->priv field. This patch removes the "chip" parameter in nand_get_device(). Signed-off-by: Huang Shijie Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/nand_base.c | 37 ++++++++++++++---------------------- 1 file changed, 14 insertions(+), 23 deletions(-) diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c index 861a87d4d16..55c2883af40 100644 --- a/drivers/mtd/nand/nand_base.c +++ b/drivers/mtd/nand/nand_base.c @@ -93,8 +93,7 @@ static struct nand_ecclayout nand_oob_128 = { .length = 78} } }; -static int nand_get_device(struct nand_chip *chip, struct mtd_info *mtd, - int new_state); +static int nand_get_device(struct mtd_info *mtd, int new_state); static int nand_do_write_oob(struct mtd_info *mtd, loff_t to, struct mtd_oob_ops *ops); @@ -300,7 +299,7 @@ static int nand_block_bad(struct mtd_info *mtd, loff_t ofs, int getchip) if (getchip) { chipnr = (int)(ofs >> chip->chip_shift); - nand_get_device(chip, mtd, FL_READING); + nand_get_device(mtd, FL_READING); /* Select the NAND device */ chip->select_chip(mtd, chipnr); @@ -382,7 +381,7 @@ static int nand_default_block_markbad(struct mtd_info *mtd, loff_t ofs) struct mtd_oob_ops ops; loff_t wr_ofs = ofs; - nand_get_device(chip, mtd, FL_WRITING); + nand_get_device(mtd, FL_WRITING); ops.datbuf = NULL; ops.oobbuf = buf; @@ -749,15 +748,15 @@ static void panic_nand_get_device(struct nand_chip *chip, /** * nand_get_device - [GENERIC] Get chip for selected access - * @chip: the nand chip descriptor * @mtd: MTD device structure * @new_state: the state which is requested * * Get the device and lock it for exclusive access */ static int -nand_get_device(struct nand_chip *chip, struct mtd_info *mtd, int new_state) +nand_get_device(struct mtd_info *mtd, int new_state) { + struct nand_chip *chip = mtd->priv; spinlock_t *lock = &chip->controller->lock; wait_queue_head_t *wq = &chip->controller->wq; DECLARE_WAITQUEUE(wait, current); @@ -933,7 +932,7 @@ int nand_unlock(struct mtd_info *mtd, loff_t ofs, uint64_t len) if (ofs + len == mtd->size) len -= mtd->erasesize; - nand_get_device(chip, mtd, FL_UNLOCKING); + nand_get_device(mtd, FL_UNLOCKING); /* Shift to get chip number */ chipnr = ofs >> chip->chip_shift; @@ -983,7 +982,7 @@ int nand_lock(struct mtd_info *mtd, loff_t ofs, uint64_t len) if (check_offs_len(mtd, ofs, len)) ret = -EINVAL; - nand_get_device(chip, mtd, FL_LOCKING); + nand_get_device(mtd, FL_LOCKING); /* Shift to get chip number */ chipnr = ofs >> chip->chip_shift; @@ -1581,11 +1580,10 @@ static int nand_do_read_ops(struct mtd_info *mtd, loff_t from, static int nand_read(struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, uint8_t *buf) { - struct nand_chip *chip = mtd->priv; struct mtd_oob_ops ops; int ret; - nand_get_device(chip, mtd, FL_READING); + nand_get_device(mtd, FL_READING); ops.len = len; ops.datbuf = buf; ops.oobbuf = NULL; @@ -1832,7 +1830,6 @@ static int nand_do_read_oob(struct mtd_info *mtd, loff_t from, static int nand_read_oob(struct mtd_info *mtd, loff_t from, struct mtd_oob_ops *ops) { - struct nand_chip *chip = mtd->priv; int ret = -ENOTSUPP; ops->retlen = 0; @@ -1844,7 +1841,7 @@ static int nand_read_oob(struct mtd_info *mtd, loff_t from, return -EINVAL; } - nand_get_device(chip, mtd, FL_READING); + nand_get_device(mtd, FL_READING); switch (ops->mode) { case MTD_OPS_PLACE_OOB: @@ -2314,11 +2311,10 @@ static int panic_nand_write(struct mtd_info *mtd, loff_t to, size_t len, static int nand_write(struct mtd_info *mtd, loff_t to, size_t len, size_t *retlen, const uint8_t *buf) { - struct nand_chip *chip = mtd->priv; struct mtd_oob_ops ops; int ret; - nand_get_device(chip, mtd, FL_WRITING); + nand_get_device(mtd, FL_WRITING); ops.len = len; ops.datbuf = (uint8_t *)buf; ops.oobbuf = NULL; @@ -2424,7 +2420,6 @@ static int nand_do_write_oob(struct mtd_info *mtd, loff_t to, static int nand_write_oob(struct mtd_info *mtd, loff_t to, struct mtd_oob_ops *ops) { - struct nand_chip *chip = mtd->priv; int ret = -ENOTSUPP; ops->retlen = 0; @@ -2436,7 +2431,7 @@ static int nand_write_oob(struct mtd_info *mtd, loff_t to, return -EINVAL; } - nand_get_device(chip, mtd, FL_WRITING); + nand_get_device(mtd, FL_WRITING); switch (ops->mode) { case MTD_OPS_PLACE_OOB: @@ -2529,7 +2524,7 @@ int nand_erase_nand(struct mtd_info *mtd, struct erase_info *instr, return -EINVAL; /* Grab the lock and see if the device is available */ - nand_get_device(chip, mtd, FL_ERASING); + nand_get_device(mtd, FL_ERASING); /* Shift to get first page */ page = (int)(instr->addr >> chip->page_shift); @@ -2675,12 +2670,10 @@ erase_exit: */ static void nand_sync(struct mtd_info *mtd) { - struct nand_chip *chip = mtd->priv; - pr_debug("%s: called\n", __func__); /* Grab the lock and see if the device is available */ - nand_get_device(chip, mtd, FL_SYNCING); + nand_get_device(mtd, FL_SYNCING); /* Release it and go back */ nand_release_device(mtd); } @@ -2766,9 +2759,7 @@ static int nand_onfi_get_features(struct mtd_info *mtd, struct nand_chip *chip, */ static int nand_suspend(struct mtd_info *mtd) { - struct nand_chip *chip = mtd->priv; - - return nand_get_device(chip, mtd, FL_PM_SUSPENDED); + return nand_get_device(mtd, FL_PM_SUSPENDED); } /** From e7e46168bcc768fa31628d3d080ac9ee7b553b56 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= Date: Fri, 23 Nov 2012 07:51:31 +0100 Subject: [PATCH 75/96] mtd: bcm47xxnflash: define some magic numbers MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Rafał Miłecki Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/bcm47xxnflash/ops_bcm4706.c | 31 +++++++++++++------- 1 file changed, 20 insertions(+), 11 deletions(-) diff --git a/drivers/mtd/nand/bcm47xxnflash/ops_bcm4706.c b/drivers/mtd/nand/bcm47xxnflash/ops_bcm4706.c index e42e18208ab..672dc90aa5b 100644 --- a/drivers/mtd/nand/bcm47xxnflash/ops_bcm4706.c +++ b/drivers/mtd/nand/bcm47xxnflash/ops_bcm4706.c @@ -22,6 +22,15 @@ #define NFLASH_SECTOR_SIZE 512 +#define NCTL_CMD0 0x00010000 +#define NCTL_CMD1W 0x00080000 +#define NCTL_READ 0x00100000 +#define NCTL_SPECADDR 0x01000000 +#define NCTL_READY 0x04000000 +#define NCTL_ERR 0x08000000 +#define NCTL_CSA 0x40000000 +#define NCTL_START 0x80000000 + /************************************************** * Various helpers **************************************************/ @@ -35,9 +44,9 @@ static int bcm47xxnflash_ops_bcm4706_ctl_cmd(struct bcma_drv_cc *cc, u32 code) { int i = 0; - bcma_cc_write32(cc, BCMA_CC_NFLASH_CTL, 0x80000000 | code); + bcma_cc_write32(cc, BCMA_CC_NFLASH_CTL, NCTL_START | code); for (i = 0; i < NFLASH_READY_RETRIES; i++) { - if (!(bcma_cc_read32(cc, BCMA_CC_NFLASH_CTL) & 0x80000000)) { + if (!(bcma_cc_read32(cc, BCMA_CC_NFLASH_CTL) & NCTL_START)) { i = 0; break; } @@ -54,7 +63,7 @@ static int bcm47xxnflash_ops_bcm4706_poll(struct bcma_drv_cc *cc) int i; for (i = 0; i < NFLASH_READY_RETRIES; i++) { - if (bcma_cc_read32(cc, BCMA_CC_NFLASH_CTL) & 0x04000000) { + if (bcma_cc_read32(cc, BCMA_CC_NFLASH_CTL) & NCTL_READY) { if (bcma_cc_read32(cc, BCMA_CC_NFLASH_CTL) & BCMA_CC_NFLASH_CTL_ERR) { pr_err("Error on polling\n"); @@ -99,8 +108,8 @@ static void bcm47xxnflash_ops_bcm4706_read(struct mtd_info *mtd, uint8_t *buf, b47n->curr_page_addr); /* Prepare to read */ - ctlcode = 0x40000000 | 0x00080000 | 0x00040000 | 0x00020000 | - 0x00010000; + ctlcode = NCTL_CSA | NCTL_CMD1W | 0x00040000 | 0x00020000 | + NCTL_CMD0; ctlcode |= NAND_CMD_READSTART << 8; if (bcm47xxnflash_ops_bcm4706_ctl_cmd(b47n->cc, ctlcode)) return; @@ -109,9 +118,9 @@ static void bcm47xxnflash_ops_bcm4706_read(struct mtd_info *mtd, uint8_t *buf, /* Eventually read some data :) */ for (i = 0; i < toread; i += 4, dest++) { - ctlcode = 0x40000000 | 0x30000000 | 0x00100000; + ctlcode = NCTL_CSA | 0x30000000 | NCTL_READ; if (i == toread - 4) /* Last read goes without that */ - ctlcode &= ~0x40000000; + ctlcode &= ~NCTL_CSA; if (bcm47xxnflash_ops_bcm4706_ctl_cmd(b47n->cc, ctlcode)) return; @@ -160,7 +169,7 @@ static void bcm47xxnflash_ops_bcm4706_cmdfunc(struct mtd_info *mtd, pr_warn("Chip reset not implemented yet\n"); break; case NAND_CMD_READID: - ctlcode = 0x40000000 | 0x01000000 | 0x00080000 | 0x00010000; + ctlcode = NCTL_CSA | 0x01000000 | NCTL_CMD1W | NCTL_CMD0; ctlcode |= NAND_CMD_READID; if (bcm47xxnflash_ops_bcm4706_ctl_cmd(b47n->cc, ctlcode)) { pr_err("READID error\n"); @@ -168,14 +177,14 @@ static void bcm47xxnflash_ops_bcm4706_cmdfunc(struct mtd_info *mtd, } /* - * Reading is specific, last one has to go without 0x40000000 + * Reading is specific, last one has to go without NCTL_CSA * bit. We don't know how many reads NAND subsystem is going * to perform, so cache everything. */ for (i = 0; i < ARRAY_SIZE(b47n->id_data); i++) { - ctlcode = 0x40000000 | 0x00100000; + ctlcode = NCTL_CSA | NCTL_READ; if (i == ARRAY_SIZE(b47n->id_data) - 1) - ctlcode &= ~0x40000000; + ctlcode &= ~NCTL_CSA; if (bcm47xxnflash_ops_bcm4706_ctl_cmd(b47n->cc, ctlcode)) { pr_err("READID error\n"); From a6b3ed29ae3fd9853280d4f6a9275c43fb4e1c3b Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= Date: Fri, 23 Nov 2012 09:58:11 +0100 Subject: [PATCH 76/96] mtd: bcm47xxnflash: support NAND_CMD_STATUS MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Rafał Miłecki Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/bcm47xxnflash/ops_bcm4706.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/drivers/mtd/nand/bcm47xxnflash/ops_bcm4706.c b/drivers/mtd/nand/bcm47xxnflash/ops_bcm4706.c index 672dc90aa5b..ece343ccc1b 100644 --- a/drivers/mtd/nand/bcm47xxnflash/ops_bcm4706.c +++ b/drivers/mtd/nand/bcm47xxnflash/ops_bcm4706.c @@ -156,6 +156,7 @@ static void bcm47xxnflash_ops_bcm4706_cmdfunc(struct mtd_info *mtd, { struct nand_chip *nand_chip = (struct nand_chip *)mtd->priv; struct bcm47xxnflash *b47n = (struct bcm47xxnflash *)nand_chip->priv; + struct bcma_drv_cc *cc = b47n->cc; u32 ctlcode; int i; @@ -196,6 +197,11 @@ static void bcm47xxnflash_ops_bcm4706_cmdfunc(struct mtd_info *mtd, } break; + case NAND_CMD_STATUS: + ctlcode = NCTL_CSA | NCTL_CMD0 | NAND_CMD_STATUS; + if (bcm47xxnflash_ops_bcm4706_ctl_cmd(cc, ctlcode)) + pr_err("STATUS command error\n"); + break; case NAND_CMD_READ0: break; case NAND_CMD_READOOB: @@ -213,6 +219,7 @@ static u8 bcm47xxnflash_ops_bcm4706_read_byte(struct mtd_info *mtd) { struct nand_chip *nand_chip = (struct nand_chip *)mtd->priv; struct bcm47xxnflash *b47n = (struct bcm47xxnflash *)nand_chip->priv; + struct bcma_drv_cc *cc = b47n->cc; u32 tmp = 0; switch (b47n->curr_command) { @@ -223,6 +230,10 @@ static u8 bcm47xxnflash_ops_bcm4706_read_byte(struct mtd_info *mtd) return 0; } return b47n->id_data[b47n->curr_column++]; + case NAND_CMD_STATUS: + if (bcm47xxnflash_ops_bcm4706_ctl_cmd(cc, NCTL_READ)) + return 0; + return bcma_cc_read32(cc, BCMA_CC_NFLASH_DATA) & 0xff; case NAND_CMD_READOOB: bcm47xxnflash_ops_bcm4706_read(mtd, (u8 *)&tmp, 4); return tmp & 0xFF; From ca6a24893073414c549920d93bac57d46d7f3e1e Mon Sep 17 00:00:00 2001 From: Matthieu CASTET Date: Thu, 22 Nov 2012 18:31:28 +0100 Subject: [PATCH 77/96] mted: nand_wait_ready timeout fix nand_wait_ready timeout should not assume HZ=100. Make it independent of HZ value by using msecs_to_jiffies. Signed-off-by: Matthieu CASTET Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/nand_base.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c index 55c2883af40..7738432c62d 100644 --- a/drivers/mtd/nand/nand_base.c +++ b/drivers/mtd/nand/nand_base.c @@ -490,7 +490,7 @@ static void panic_nand_wait_ready(struct mtd_info *mtd, unsigned long timeo) void nand_wait_ready(struct mtd_info *mtd) { struct nand_chip *chip = mtd->priv; - unsigned long timeo = jiffies + 2; + unsigned long timeo = jiffies + msecs_to_jiffies(20); /* 400ms timeout */ if (in_interrupt() || oops_in_progress) From 2fd71a294a0aac407ec69e04916dc28eb39c8ac0 Mon Sep 17 00:00:00 2001 From: Matthieu CASTET Date: Thu, 22 Nov 2012 18:33:40 +0100 Subject: [PATCH 78/96] mtd: nand: print flash size during detection This help to detect bad flash identification in case the size is not present on the name (ONFI). Signed-off-by: Matthieu CASTET Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/nand_base.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c index 7738432c62d..6f58e1633e2 100644 --- a/drivers/mtd/nand/nand_base.c +++ b/drivers/mtd/nand/nand_base.c @@ -3293,10 +3293,10 @@ ident_done: chip->cmdfunc = nand_command_lp; pr_info("NAND device: Manufacturer ID: 0x%02x, Chip ID: 0x%02x (%s %s)," - " page size: %d, OOB size: %d\n", + " %dMiB, page size: %d, OOB size: %d\n", *maf_id, *dev_id, nand_manuf_ids[maf_idx].name, chip->onfi_version ? chip->onfi_params.model : type->name, - mtd->writesize, mtd->oobsize); + (int)(chip->chipsize >> 20), mtd->writesize, mtd->oobsize); return type; } From 64b37b2a63eb2f80b65c7185f0013f8ffc637ae3 Mon Sep 17 00:00:00 2001 From: Matthieu CASTET Date: Tue, 6 Nov 2012 11:51:44 +0100 Subject: [PATCH 79/96] mtd: nand: add NAND_BUSWIDTH_AUTO to autodetect bus width The driver call nand_scan_ident in 8 bit mode, then readid or onfi detection are done (and detect bus width). The driver should update its bus width before calling nand_scan_tail. This work because readid and onfi are read work 8 byte mode. Note that nand_scan_ident send command (NAND_CMD_RESET, NAND_CMD_READID, NAND_CMD_PARAM), address and read data The ONFI specificication is not very clear for x16 device if high byte of address should be driven to 0, but according to [1] it should be ok to not drive it during autodetection. [1] 3.3.2. Target Initialization [...] The Read ID and Read Parameter Page commands only use the lower 8-bits of the data bus. The host shall not issue commands that use a word data width on x16 devices until the host determines the device supports a 16-bit data bus width in the parameter page. Signed-off-by: Matthieu CASTET Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/nand_base.c | 14 +++++++++----- include/linux/mtd/nand.h | 7 +++++++ 2 files changed, 16 insertions(+), 5 deletions(-) diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c index 6f58e1633e2..5851c51ac2d 100644 --- a/drivers/mtd/nand/nand_base.c +++ b/drivers/mtd/nand/nand_base.c @@ -3250,11 +3250,15 @@ ident_done: break; } - /* - * Check, if buswidth is correct. Hardware drivers should set - * chip correct! - */ - if (busw != (chip->options & NAND_BUSWIDTH_16)) { + if (chip->options & NAND_BUSWIDTH_AUTO) { + WARN_ON(chip->options & NAND_BUSWIDTH_16); + chip->options |= busw; + nand_set_defaults(chip, busw); + } else if (busw != (chip->options & NAND_BUSWIDTH_16)) { + /* + * Check, if buswidth is correct. Hardware drivers should set + * chip correct! + */ pr_info("NAND device: Manufacturer ID:" " 0x%02x, Chip ID: 0x%02x (%s %s)\n", *maf_id, *dev_id, nand_manuf_ids[maf_idx].name, mtd->name); diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h index 9d8a6048aac..7ccb3c59ed6 100644 --- a/include/linux/mtd/nand.h +++ b/include/linux/mtd/nand.h @@ -219,6 +219,13 @@ typedef enum { #define NAND_OWN_BUFFERS 0x00020000 /* Chip may not exist, so silence any errors in scan */ #define NAND_SCAN_SILENT_NODEV 0x00040000 +/* + * Autodetect nand buswidth with readid/onfi. + * This suppose the driver will configure the hardware in 8 bits mode + * when calling nand_scan_ident, and update its configuration + * before calling nand_scan_tail. + */ +#define NAND_BUSWIDTH_AUTO 0x00080000 /* Options set by nand scan */ /* Nand scan has allocated controller struct */ From ff3206b2450499203532af2505a7f6f8413e92c0 Mon Sep 17 00:00:00 2001 From: Matthieu CASTET Date: Tue, 6 Nov 2012 11:51:43 +0100 Subject: [PATCH 80/96] mtd: nand: onfi need to be probed in 8 bits mode - NAND_CMD_READID want an address that it is not scaled on x16 device (it is always 0x20) - NAND_CMD_PARAM want 8 bits data Signed-off-by: Matthieu CASTET Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/nand_base.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c index 5851c51ac2d..0ac49ca5852 100644 --- a/drivers/mtd/nand/nand_base.c +++ b/drivers/mtd/nand/nand_base.c @@ -2857,6 +2857,8 @@ static int nand_flash_detect_onfi(struct mtd_info *mtd, struct nand_chip *chip, int i; int val; + /* ONFI need to be probed in 8 bits mode */ + WARN_ON(chip->options & NAND_BUSWIDTH_16); /* Try ONFI for unknown chip or LP */ chip->cmdfunc(mtd, NAND_CMD_READID, 0x20, -1); if (chip->read_byte(mtd) != 'O' || chip->read_byte(mtd) != 'N' || From 070c32223ae8a724a190ea769104ea41567e3673 Mon Sep 17 00:00:00 2001 From: Harald Nordgard-Hansen Date: Fri, 23 Nov 2012 23:11:03 +0100 Subject: [PATCH 81/96] mtd: fix recovery after failed write-buffer operation in cfi_cmdset_0002.c When working on a problem with some flash chips that lock up during write-buffer operations, I think there may be a bug in the linux handling of chips using cfi_cmdset_0002.c. The datasheets I have found for a number of these chips all specify that when aborting a write-buffer command, it is not enough to use the standard reset. Rather a "write-to-buffer-reset command" is needed. This command is quite similar for all chips, the main variance seem to be if the final 0xF0 can go to any address or must go to addr_unlock1. The bug is then in the recovery handling when timing out at the end of do_write_buffer, where using the normal reset command is not sufficient. Without this change, if the write-buffer command fails then any following operations on the flash also fail. Signed-off-by: Harald Nordgard-Hansen Signed-off-by: Artem Bityutskiy --- drivers/mtd/chips/cfi_cmdset_0002.c | 16 ++++++++++++++-- 1 file changed, 14 insertions(+), 2 deletions(-) diff --git a/drivers/mtd/chips/cfi_cmdset_0002.c b/drivers/mtd/chips/cfi_cmdset_0002.c index 5ff5c4a1694..b86197286f2 100644 --- a/drivers/mtd/chips/cfi_cmdset_0002.c +++ b/drivers/mtd/chips/cfi_cmdset_0002.c @@ -1536,8 +1536,20 @@ static int __xipram do_write_buffer(struct map_info *map, struct flchip *chip, UDELAY(map, chip, adr, 1); } - /* reset on all failures. */ - map_write( map, CMD(0xF0), chip->start ); + /* + * Recovery from write-buffer programming failures requires + * the write-to-buffer-reset sequence. Since the last part + * of the sequence also works as a normal reset, we can run + * the same commands regardless of why we are here. + * See e.g. + * http://www.spansion.com/Support/Application%20Notes/MirrorBit_Write_Buffer_Prog_Page_Buffer_Read_AN.pdf + */ + cfi_send_gen_cmd(0xAA, cfi->addr_unlock1, chip->start, map, cfi, + cfi->device_type, NULL); + cfi_send_gen_cmd(0x55, cfi->addr_unlock2, chip->start, map, cfi, + cfi->device_type, NULL); + cfi_send_gen_cmd(0xF0, cfi->addr_unlock1, chip->start, map, cfi, + cfi->device_type, NULL); xip_enable(map, chip, adr); /* FIXME - should have reset delay before continuing */ From c0c70d9ee6569150ff6a10f9d3c50c63c917e3a1 Mon Sep 17 00:00:00 2001 From: Josh Wu Date: Tue, 27 Nov 2012 18:50:31 +0800 Subject: [PATCH 82/96] mtd: at91: atmel_nand: return bit flips for the PMECC read_page() This patch fix pmecc's read_page() to return maximum number of bitflips, 0 if uncorrectable. In the commit: 3f91e94f7f511de74c0d2abe08672ccdbdd1961c ("mtd: nand: read_page() returns max_bitflips ()"), The ecc.read_page() is changed to return the maximum number of bitflips. And when meet uncorrectable bitflips it needs to return 0. See the comment in nand.h: * @read_page: function to read a page according to the ECC generator * requirements; returns maximum number of bitflips corrected in * any single ECC step, 0 if bitflips uncorrectable, -EIO hw error Signed-off-by: Josh Wu Reviewed-by: Mike Dunn Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/atmel_nand.c | 16 +++++++++++----- 1 file changed, 11 insertions(+), 5 deletions(-) diff --git a/drivers/mtd/nand/atmel_nand.c b/drivers/mtd/nand/atmel_nand.c index c9183866a16..1669d272622 100644 --- a/drivers/mtd/nand/atmel_nand.c +++ b/drivers/mtd/nand/atmel_nand.c @@ -723,6 +723,7 @@ static int pmecc_correction(struct mtd_info *mtd, u32 pmecc_stat, uint8_t *buf, struct atmel_nand_host *host = nand_chip->priv; int i, err_nbr, eccbytes; uint8_t *buf_pos; + int total_err = 0; eccbytes = nand_chip->ecc.bytes; for (i = 0; i < eccbytes; i++) @@ -750,12 +751,13 @@ normal_check: pmecc_correct_data(mtd, buf_pos, ecc, i, host->pmecc_bytes_per_sector, err_nbr); mtd->ecc_stats.corrected += err_nbr; + total_err += err_nbr; } } pmecc_stat >>= 1; } - return 0; + return total_err; } static int atmel_nand_pmecc_read_page(struct mtd_info *mtd, @@ -767,6 +769,7 @@ static int atmel_nand_pmecc_read_page(struct mtd_info *mtd, uint32_t *eccpos = chip->ecc.layout->eccpos; uint32_t stat; unsigned long end_time; + int bitflips = 0; pmecc_writel(host->ecc, CTRL, PMECC_CTRL_RST); pmecc_writel(host->ecc, CTRL, PMECC_CTRL_DISABLE); @@ -789,11 +792,14 @@ static int atmel_nand_pmecc_read_page(struct mtd_info *mtd, } stat = pmecc_readl_relaxed(host->ecc, ISR); - if (stat != 0) - if (pmecc_correction(mtd, stat, buf, &oob[eccpos[0]]) != 0) - return -EIO; + if (stat != 0) { + bitflips = pmecc_correction(mtd, stat, buf, &oob[eccpos[0]]); + if (bitflips < 0) + /* uncorrectable errors */ + return 0; + } - return 0; + return bitflips; } static int atmel_nand_pmecc_write_page(struct mtd_info *mtd, From d8b1e34e248d89f43bab18704894d537dc0b497e Mon Sep 17 00:00:00 2001 From: Christian Herzig Date: Fri, 23 Nov 2012 15:31:26 +0100 Subject: [PATCH 83/96] mtd: tests/read: initialize buffer for whole next page fix: do block-buffer initialize for the whole next page to zero. Signed-off-by: Christian Herzig Signed-off-by: Artem Bityutskiy --- drivers/mtd/tests/mtd_readtest.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/mtd/tests/mtd_readtest.c b/drivers/mtd/tests/mtd_readtest.c index 31f505cc942..266de04b6d2 100644 --- a/drivers/mtd/tests/mtd_readtest.c +++ b/drivers/mtd/tests/mtd_readtest.c @@ -51,7 +51,7 @@ static int read_eraseblock_by_page(int ebnum) void *oobbuf = iobuf1; for (i = 0; i < pgcnt; i++) { - memset(buf, 0 , pgcnt); + memset(buf, 0 , pgsize); ret = mtd_read(mtd, addr, pgsize, &read, buf); if (ret == -EUCLEAN) ret = 0; From ecfe57b796d4ccec7ea53783ca18a0ad48ad880b Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= Date: Mon, 3 Dec 2012 10:22:35 +0100 Subject: [PATCH 84/96] mtd: bcm47xxnflash: writing support MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Rafał Miłecki Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/Kconfig | 5 +- drivers/mtd/nand/bcm47xxnflash/ops_bcm4706.c | 77 ++++++++++++++++++++ 2 files changed, 79 insertions(+), 3 deletions(-) diff --git a/drivers/mtd/nand/Kconfig b/drivers/mtd/nand/Kconfig index 3314e92120c..37ffe56e74a 100644 --- a/drivers/mtd/nand/Kconfig +++ b/drivers/mtd/nand/Kconfig @@ -461,13 +461,12 @@ config MTD_NAND_GPMI_NAND the GPMI. config MTD_NAND_BCM47XXNFLASH - tristate "R/O support for NAND flash on BCMA bus" + tristate "Support for NAND flash on BCM4706 BCMA bus" depends on BCMA_NFLASH help BCMA bus can have various flash memories attached, they are registered by bcma as platform devices. This enables driver for - NAND flash memories. For now only read mode for BCM4706 is - implemented. + NAND flash memories. For now only BCM4706 is supported. config MTD_NAND_PLATFORM tristate "Support for generic platform NAND driver" diff --git a/drivers/mtd/nand/bcm47xxnflash/ops_bcm4706.c b/drivers/mtd/nand/bcm47xxnflash/ops_bcm4706.c index ece343ccc1b..86c9a79b89b 100644 --- a/drivers/mtd/nand/bcm47xxnflash/ops_bcm4706.c +++ b/drivers/mtd/nand/bcm47xxnflash/ops_bcm4706.c @@ -25,6 +25,7 @@ #define NCTL_CMD0 0x00010000 #define NCTL_CMD1W 0x00080000 #define NCTL_READ 0x00100000 +#define NCTL_WRITE 0x00200000 #define NCTL_SPECADDR 0x01000000 #define NCTL_READY 0x04000000 #define NCTL_ERR 0x08000000 @@ -132,6 +133,36 @@ static void bcm47xxnflash_ops_bcm4706_read(struct mtd_info *mtd, uint8_t *buf, } } +static void bcm47xxnflash_ops_bcm4706_write(struct mtd_info *mtd, + const uint8_t *buf, int len) +{ + struct nand_chip *nand_chip = (struct nand_chip *)mtd->priv; + struct bcm47xxnflash *b47n = (struct bcm47xxnflash *)nand_chip->priv; + struct bcma_drv_cc *cc = b47n->cc; + + u32 ctlcode; + const u32 *data = (u32 *)buf; + int i; + + BUG_ON(b47n->curr_page_addr & ~nand_chip->pagemask); + /* Don't validate column using nand_chip->page_shift, it may be bigger + * when accessing OOB */ + + for (i = 0; i < len; i += 4, data++) { + bcma_cc_write32(cc, BCMA_CC_NFLASH_DATA, *data); + + ctlcode = NCTL_CSA | 0x30000000 | NCTL_WRITE; + if (i == len - 4) /* Last read goes without that */ + ctlcode &= ~NCTL_CSA; + if (bcm47xxnflash_ops_bcm4706_ctl_cmd(cc, ctlcode)) { + pr_err("%s ctl_cmd didn't work!\n", __func__); + return; + } + } + + b47n->curr_column += len; +} + /************************************************** * NAND chip ops **************************************************/ @@ -208,6 +239,36 @@ static void bcm47xxnflash_ops_bcm4706_cmdfunc(struct mtd_info *mtd, if (page_addr != -1) b47n->curr_column += mtd->writesize; break; + case NAND_CMD_ERASE1: + bcma_cc_write32(cc, BCMA_CC_NFLASH_ROW_ADDR, + b47n->curr_page_addr); + ctlcode = 0x00040000 | NCTL_CMD1W | NCTL_CMD0 | + NAND_CMD_ERASE1 | (NAND_CMD_ERASE2 << 8); + if (bcm47xxnflash_ops_bcm4706_ctl_cmd(cc, ctlcode)) + pr_err("ERASE1 failed\n"); + break; + case NAND_CMD_ERASE2: + break; + case NAND_CMD_SEQIN: + /* Set page and column */ + bcma_cc_write32(cc, BCMA_CC_NFLASH_COL_ADDR, + b47n->curr_column); + bcma_cc_write32(cc, BCMA_CC_NFLASH_ROW_ADDR, + b47n->curr_page_addr); + + /* Prepare to write */ + ctlcode = 0x40000000 | 0x00040000 | 0x00020000 | 0x00010000; + ctlcode |= NAND_CMD_SEQIN; + if (bcm47xxnflash_ops_bcm4706_ctl_cmd(cc, ctlcode)) + pr_err("SEQIN failed\n"); + break; + case NAND_CMD_PAGEPROG: + if (bcm47xxnflash_ops_bcm4706_ctl_cmd(cc, 0x00010000 | + NAND_CMD_PAGEPROG)) + pr_err("PAGEPROG failed\n"); + if (bcm47xxnflash_ops_bcm4706_poll(cc)) + pr_err("PAGEPROG not ready\n"); + break; default: pr_err("Command 0x%X unsupported\n", command); break; @@ -259,6 +320,21 @@ static void bcm47xxnflash_ops_bcm4706_read_buf(struct mtd_info *mtd, pr_err("Invalid command for buf read: 0x%X\n", b47n->curr_command); } +static void bcm47xxnflash_ops_bcm4706_write_buf(struct mtd_info *mtd, + const uint8_t *buf, int len) +{ + struct nand_chip *nand_chip = (struct nand_chip *)mtd->priv; + struct bcm47xxnflash *b47n = (struct bcm47xxnflash *)nand_chip->priv; + + switch (b47n->curr_command) { + case NAND_CMD_SEQIN: + bcm47xxnflash_ops_bcm4706_write(mtd, buf, len); + return; + } + + pr_err("Invalid command for buf write: 0x%X\n", b47n->curr_command); +} + /************************************************** * Init **************************************************/ @@ -278,6 +354,7 @@ int bcm47xxnflash_ops_bcm4706_init(struct bcm47xxnflash *b47n) b47n->nand_chip.cmdfunc = bcm47xxnflash_ops_bcm4706_cmdfunc; b47n->nand_chip.read_byte = bcm47xxnflash_ops_bcm4706_read_byte; b47n->nand_chip.read_buf = bcm47xxnflash_ops_bcm4706_read_buf; + b47n->nand_chip.write_buf = bcm47xxnflash_ops_bcm4706_write_buf; b47n->nand_chip.bbt_options = NAND_BBT_USE_FLASH; b47n->nand_chip.ecc.mode = NAND_ECC_NONE; /* TODO: implement ECC */ From 6c810f90140a3274181c4093d5dd4c88c6fff0b4 Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Thu, 29 Nov 2012 17:16:51 +0300 Subject: [PATCH 85/96] mtg: docg3: potential divide by zero in doc_write_oob() If we set oobdelta to zero then we will either return -EINVAL or hit a divide (modulus) by zero on the next line when we check "(ooblen % oobdelta)". It's better to just return -EINVAL here instead. Signed-off-by: Dan Carpenter Acked-by: Robert Jarzmik Signed-off-by: Artem Bityutskiy --- drivers/mtd/devices/docg3.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/mtd/devices/docg3.c b/drivers/mtd/devices/docg3.c index d34d83b8f9c..8510ccb9c6f 100644 --- a/drivers/mtd/devices/docg3.c +++ b/drivers/mtd/devices/docg3.c @@ -1440,7 +1440,7 @@ static int doc_write_oob(struct mtd_info *mtd, loff_t ofs, oobdelta = mtd->ecclayout->oobavail; break; default: - oobdelta = 0; + return -EINVAL; } if ((len % DOC_LAYOUT_PAGE_SIZE) || (ooblen % oobdelta) || (ofs % DOC_LAYOUT_PAGE_SIZE)) From e58a66d84bceba314b03e37ec0764b9b1b9227d0 Mon Sep 17 00:00:00 2001 From: Anton Prins Date: Tue, 27 Nov 2012 16:38:16 +0100 Subject: [PATCH 86/96] mtd: physmap_of: error checking to prevent a NULL pointer dereference This patch solves a NULL pointer dereference, this may occur if the tuple is not mappable (jumps to continue in the for-loop). Out of the loop possible results are: - info->list_size == 0 if no of the tuples is mappable - info->list_size == 1 - info->list_size > 1 If no one of the supplied tuples is mappable (info->list_size == 0) and info->cmtd will not be set. But it is used in mtd_device_parse_register, OOPS! actually it should generate an error in this case! Signed-off-by: Anton Prins Signed-off-by: Artem Bityutskiy --- drivers/mtd/maps/physmap_of.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/mtd/maps/physmap_of.c b/drivers/mtd/maps/physmap_of.c index cde8bf94338..37cdc201652 100644 --- a/drivers/mtd/maps/physmap_of.c +++ b/drivers/mtd/maps/physmap_of.c @@ -285,6 +285,7 @@ static int of_flash_probe(struct platform_device *dev) } err = 0; + info->cmtd = NULL; if (info->list_size == 1) { info->cmtd = info->list[0].mtd; } else if (info->list_size > 1) { @@ -293,9 +294,10 @@ static int of_flash_probe(struct platform_device *dev) */ info->cmtd = mtd_concat_create(mtd_list, info->list_size, dev_name(&dev->dev)); - if (info->cmtd == NULL) - err = -ENXIO; } + if (info->cmtd == NULL) + err = -ENXIO; + if (err) goto err_out; From 5346c27c5fed6b30aff35e1fcb595625097e646c Mon Sep 17 00:00:00 2001 From: Ezequiel Garcia Date: Mon, 3 Dec 2012 10:31:40 -0300 Subject: [PATCH 87/96] mtd: nandsim: Introduce debugfs infrastructure It's more user friendly to report debug information and statistics through debugfs, than to use printing facilites. This patch introduces a very minimal debugfs infrastructure and moves eraseblock wear report to an entry located at: /sys/kernel/debug/nandsim/wear_report This means we can remove rptwear option and just let the user get the wear report when we needs to. Signed-off-by: Ezequiel Garcia Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/nandsim.c | 186 ++++++++++++++++++++++++++----------- 1 file changed, 130 insertions(+), 56 deletions(-) diff --git a/drivers/mtd/nand/nandsim.c b/drivers/mtd/nand/nandsim.c index a932c485eb0..2ab827428f1 100644 --- a/drivers/mtd/nand/nandsim.c +++ b/drivers/mtd/nand/nandsim.c @@ -42,6 +42,8 @@ #include #include #include +#include +#include /* Default simulator parameters values */ #if !defined(CONFIG_NANDSIM_FIRST_ID_BYTE) || \ @@ -105,7 +107,6 @@ static char *weakblocks = NULL; static char *weakpages = NULL; static unsigned int bitflips = 0; static char *gravepages = NULL; -static unsigned int rptwear = 0; static unsigned int overridesize = 0; static char *cache_file = NULL; static unsigned int bbt; @@ -130,7 +131,6 @@ module_param(weakblocks, charp, 0400); module_param(weakpages, charp, 0400); module_param(bitflips, uint, 0400); module_param(gravepages, charp, 0400); -module_param(rptwear, uint, 0400); module_param(overridesize, uint, 0400); module_param(cache_file, charp, 0400); module_param(bbt, uint, 0400); @@ -162,7 +162,6 @@ MODULE_PARM_DESC(bitflips, "Maximum number of random bit flips per page (z MODULE_PARM_DESC(gravepages, "Pages that lose data [: maximum reads (defaults to 3)]" " separated by commas e.g. 1401:2 means page 1401" " can be read only twice before failing"); -MODULE_PARM_DESC(rptwear, "Number of erases between reporting wear, if not zero"); MODULE_PARM_DESC(overridesize, "Specifies the NAND Flash size overriding the ID bytes. " "The size is specified in erase blocks and as the exponent of a power of two" " e.g. 5 means a size of 32 erase blocks"); @@ -286,6 +285,11 @@ MODULE_PARM_DESC(bch, "Enable BCH ecc and set how many bits should " /* Maximum page cache pages needed to read or write a NAND page to the cache_file */ #define NS_MAX_HELD_PAGES 16 +struct nandsim_debug_info { + struct dentry *dfs_root; + struct dentry *dfs_wear_report; +}; + /* * A union to represent flash memory contents and flash buffer. */ @@ -365,6 +369,8 @@ struct nandsim { void *file_buf; struct page *held_pages[NS_MAX_HELD_PAGES]; int held_cnt; + + struct nandsim_debug_info dbg; }; /* @@ -442,11 +448,123 @@ static LIST_HEAD(grave_pages); static unsigned long *erase_block_wear = NULL; static unsigned int wear_eb_count = 0; static unsigned long total_wear = 0; -static unsigned int rptwear_cnt = 0; /* MTD structure for NAND controller */ static struct mtd_info *nsmtd; +static int nandsim_debugfs_show(struct seq_file *m, void *private) +{ + unsigned long wmin = -1, wmax = 0, avg; + unsigned long deciles[10], decile_max[10], tot = 0; + unsigned int i; + + /* Calc wear stats */ + for (i = 0; i < wear_eb_count; ++i) { + unsigned long wear = erase_block_wear[i]; + if (wear < wmin) + wmin = wear; + if (wear > wmax) + wmax = wear; + tot += wear; + } + + for (i = 0; i < 9; ++i) { + deciles[i] = 0; + decile_max[i] = (wmax * (i + 1) + 5) / 10; + } + deciles[9] = 0; + decile_max[9] = wmax; + for (i = 0; i < wear_eb_count; ++i) { + int d; + unsigned long wear = erase_block_wear[i]; + for (d = 0; d < 10; ++d) + if (wear <= decile_max[d]) { + deciles[d] += 1; + break; + } + } + avg = tot / wear_eb_count; + + /* Output wear report */ + seq_printf(m, "Total numbers of erases: %lu\n", tot); + seq_printf(m, "Number of erase blocks: %u\n", wear_eb_count); + seq_printf(m, "Average number of erases: %lu\n", avg); + seq_printf(m, "Maximum number of erases: %lu\n", wmax); + seq_printf(m, "Minimum number of erases: %lu\n", wmin); + for (i = 0; i < 10; ++i) { + unsigned long from = (i ? decile_max[i - 1] + 1 : 0); + if (from > decile_max[i]) + continue; + seq_printf(m, "Number of ebs with erase counts from %lu to %lu : %lu\n", + from, + decile_max[i], + deciles[i]); + } + + return 0; +} + +static int nandsim_debugfs_open(struct inode *inode, struct file *file) +{ + return single_open(file, nandsim_debugfs_show, inode->i_private); +} + +static const struct file_operations dfs_fops = { + .open = nandsim_debugfs_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, +}; + +/** + * nandsim_debugfs_create - initialize debugfs + * @dev: nandsim device description object + * + * This function creates all debugfs files for UBI device @ubi. Returns zero in + * case of success and a negative error code in case of failure. + */ +static int nandsim_debugfs_create(struct nandsim *dev) +{ + struct nandsim_debug_info *dbg = &dev->dbg; + struct dentry *dent; + int err; + + if (!IS_ENABLED(CONFIG_DEBUG_FS)) + return 0; + + dent = debugfs_create_dir("nandsim", NULL); + if (IS_ERR_OR_NULL(dent)) { + int err = dent ? -ENODEV : PTR_ERR(dent); + + NS_ERR("cannot create \"nandsim\" debugfs directory, err %d\n", + err); + return err; + } + dbg->dfs_root = dent; + + dent = debugfs_create_file("wear_report", S_IRUSR, + dbg->dfs_root, dev, &dfs_fops); + if (IS_ERR_OR_NULL(dent)) + goto out_remove; + dbg->dfs_wear_report = dent; + + return 0; + +out_remove: + debugfs_remove_recursive(dbg->dfs_root); + err = dent ? PTR_ERR(dent) : -ENODEV; + return err; +} + +/** + * nandsim_debugfs_remove - destroy all debugfs files + */ +static void nandsim_debugfs_remove(struct nandsim *ns) +{ + if (IS_ENABLED(CONFIG_DEBUG_FS)) + debugfs_remove_recursive(ns->dbg.dfs_root); +} + /* * Allocate array of page pointers, create slab allocation for an array * and initialize the array by NULL pointers. @@ -911,8 +1029,6 @@ static int setup_wear_reporting(struct mtd_info *mtd) { size_t mem; - if (!rptwear) - return 0; wear_eb_count = div_u64(mtd->size, mtd->erasesize); mem = wear_eb_count * sizeof(unsigned long); if (mem / sizeof(unsigned long) != wear_eb_count) { @@ -929,64 +1045,18 @@ static int setup_wear_reporting(struct mtd_info *mtd) static void update_wear(unsigned int erase_block_no) { - unsigned long wmin = -1, wmax = 0, avg; - unsigned long deciles[10], decile_max[10], tot = 0; - unsigned int i; - if (!erase_block_wear) return; total_wear += 1; + /* + * TODO: Notify this through a debugfs entry, + * instead of showing an error message. + */ if (total_wear == 0) NS_ERR("Erase counter total overflow\n"); erase_block_wear[erase_block_no] += 1; if (erase_block_wear[erase_block_no] == 0) NS_ERR("Erase counter overflow for erase block %u\n", erase_block_no); - rptwear_cnt += 1; - if (rptwear_cnt < rptwear) - return; - rptwear_cnt = 0; - /* Calc wear stats */ - for (i = 0; i < wear_eb_count; ++i) { - unsigned long wear = erase_block_wear[i]; - if (wear < wmin) - wmin = wear; - if (wear > wmax) - wmax = wear; - tot += wear; - } - for (i = 0; i < 9; ++i) { - deciles[i] = 0; - decile_max[i] = (wmax * (i + 1) + 5) / 10; - } - deciles[9] = 0; - decile_max[9] = wmax; - for (i = 0; i < wear_eb_count; ++i) { - int d; - unsigned long wear = erase_block_wear[i]; - for (d = 0; d < 10; ++d) - if (wear <= decile_max[d]) { - deciles[d] += 1; - break; - } - } - avg = tot / wear_eb_count; - /* Output wear report */ - NS_INFO("*** Wear Report ***\n"); - NS_INFO("Total numbers of erases: %lu\n", tot); - NS_INFO("Number of erase blocks: %u\n", wear_eb_count); - NS_INFO("Average number of erases: %lu\n", avg); - NS_INFO("Maximum number of erases: %lu\n", wmax); - NS_INFO("Minimum number of erases: %lu\n", wmin); - for (i = 0; i < 10; ++i) { - unsigned long from = (i ? decile_max[i - 1] + 1 : 0); - if (from > decile_max[i]) - continue; - NS_INFO("Number of ebs with erase counts from %lu to %lu : %lu\n", - from, - decile_max[i], - deciles[i]); - } - NS_INFO("*** End of Wear Report ***\n"); } /* @@ -2330,6 +2400,9 @@ static int __init ns_init_module(void) if ((retval = setup_wear_reporting(nsmtd)) != 0) goto err_exit; + if ((retval = nandsim_debugfs_create(nand)) != 0) + goto err_exit; + if ((retval = init_nandsim(nsmtd)) != 0) goto err_exit; @@ -2369,6 +2442,7 @@ static void __exit ns_cleanup_module(void) struct nandsim *ns = ((struct nand_chip *)nsmtd->priv)->priv; int i; + nandsim_debugfs_remove(ns); free_nandsim(ns); /* Free nandsim private resources */ nand_release(nsmtd); /* Unregister driver */ for (i = 0;i < ARRAY_SIZE(ns->partitions); ++i) From c10d8ee3feaf725007e515b5f2972dffaa793f9a Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Lothar=20Wa=C3=9Fmann?= Date: Thu, 6 Dec 2012 08:42:27 +0100 Subject: [PATCH 88/96] mtd: mxc_nand: fix unbalanced clk_disable() in error path MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit If nand_scan_ident() or nand_scan_tail() fails, the NAND chip may have been deselected and the clock already disabled. Thus, check 'clk_act' in the error path to decide whether the clock still needs to be disabled. This fixes a: |WARNING: at drivers/clk/clk.c:472 __clk_disable+0x3c/0x78() Signed-off-by: Lothar Waßmann Acked-by: Sascha Hauer Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/mxc_nand.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/mtd/nand/mxc_nand.c b/drivers/mtd/nand/mxc_nand.c index 4aef6a355d5..ab0fe383c50 100644 --- a/drivers/mtd/nand/mxc_nand.c +++ b/drivers/mtd/nand/mxc_nand.c @@ -1533,7 +1533,8 @@ static int mxcnd_probe(struct platform_device *pdev) return 0; escan: - clk_disable_unprepare(host->clk); + if (host->clk_act) + clk_disable_unprepare(host->clk); return err; } From 740bb0c4b0bbeb8970d62157685f6d4a261036a0 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Lothar=20Wa=C3=9Fmann?= Date: Thu, 6 Dec 2012 08:42:28 +0100 Subject: [PATCH 89/96] mtd: mxc_nand: reorder part_probes to let cmdline override other sources MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The cmdline is the easiest to change source of information. Thus let it take precedence over 'RedBoot' and 'ofpart'. This makes the mxc_nand driver to be in sync with all other NAND drivers that support 'cmdlinepart' partition parsing. Also change 'const char *' to 'const char const *' as advised by checkpatch.pl Signed-off-by: Lothar Waßmann Acked-by: Sascha Hauer Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/mxc_nand.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/mtd/nand/mxc_nand.c b/drivers/mtd/nand/mxc_nand.c index ab0fe383c50..9f10778a652 100644 --- a/drivers/mtd/nand/mxc_nand.c +++ b/drivers/mtd/nand/mxc_nand.c @@ -272,7 +272,8 @@ static struct nand_ecclayout nandv2_hw_eccoob_4k = { } }; -static const char *part_probes[] = { "RedBoot", "cmdlinepart", "ofpart", NULL }; +static const char const *part_probes[] = { + "cmdlinepart", "RedBoot", "ofpart", NULL }; static void memcpy32_fromio(void *trg, const void __iomem *src, size_t size) { From 5a90d41b693bda1318807a49d38ef1444f61dfdd Mon Sep 17 00:00:00 2001 From: Mike Dunn Date: Fri, 7 Dec 2012 12:07:21 -0800 Subject: [PATCH 90/96] mtd: nand/docg4: add support for writing in reliable mode The controller on the docg4 has a "reliable" mode, where consecutive 2k pages are used in parallel. The initial program loader (IPL) on my Treo 680 expects the secondary program loader (SPL) to be written in this mode. This patch adds support for writing data in reliable mode, by way of a module parameter. Support for reading in this mode (as the IPL does) is not supported yet, but alternate (even-numbered) 2k pages written in reliable mode can be read normally (odd-numbered pages will contain junk and generate ecc errors). Signed-off-by: Mike Dunn Acked-by: Robert Jarzmik Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/docg4.c | 39 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 39 insertions(+) diff --git a/drivers/mtd/nand/docg4.c b/drivers/mtd/nand/docg4.c index 799da5d1c85..54b1e5e359b 100644 --- a/drivers/mtd/nand/docg4.c +++ b/drivers/mtd/nand/docg4.c @@ -45,6 +45,25 @@ #include #include +/* + * In "reliable mode" consecutive 2k pages are used in parallel (in some + * fashion) to store the same data. The data can be read back from the + * even-numbered pages in the normal manner; odd-numbered pages will appear to + * contain junk. Systems that boot from the docg4 typically write the secondary + * program loader (SPL) code in this mode. The SPL is loaded by the initial + * program loader (IPL, stored in the docg4's 2k NOR-like region that is mapped + * to the reset vector address). This module parameter enables you to use this + * driver to write the SPL. When in this mode, no more than 2k of data can be + * written at a time, because the addresses do not increment in the normal + * manner, and the starting offset must be within an even-numbered 2k region; + * i.e., invalid starting offsets are 0x800, 0xa00, 0xc00, 0xe00, 0x1800, + * 0x1a00, ... Reliable mode is a special case and should not be used unless + * you know what you're doing. + */ +static bool reliable_mode; +module_param(reliable_mode, bool, 0); +MODULE_PARM_DESC(reliable_mode, "pages are programmed in reliable mode"); + /* * You'll want to ignore badblocks if you're reading a partition that contains * data written by the TrueFFS library (i.e., by PalmOS, Windows, etc), since @@ -113,6 +132,7 @@ struct docg4_priv { #define DOCG4_SEQ_PAGEWRITE 0x16 #define DOCG4_SEQ_PAGEPROG 0x1e #define DOCG4_SEQ_BLOCKERASE 0x24 +#define DOCG4_SEQ_SETMODE 0x45 /* DOC_FLASHCOMMAND register commands */ #define DOCG4_CMD_PAGE_READ 0x00 @@ -122,6 +142,8 @@ struct docg4_priv { #define DOC_CMD_PROG_BLOCK_ADDR 0x60 #define DOCG4_CMD_PAGEWRITE 0x80 #define DOC_CMD_PROG_CYCLE2 0x10 +#define DOCG4_CMD_FAST_MODE 0xa3 /* functionality guessed */ +#define DOC_CMD_RELIABLE_MODE 0x22 #define DOC_CMD_RESET 0xff /* DOC_POWERMODE register bits */ @@ -611,6 +633,14 @@ static void write_page_prologue(struct mtd_info *mtd, uint32_t docg4_addr) dev_dbg(doc->dev, "docg4: %s: g4 addr: %x\n", __func__, docg4_addr); sequence_reset(mtd); + + if (unlikely(reliable_mode)) { + writew(DOCG4_SEQ_SETMODE, docptr + DOC_FLASHSEQUENCE); + writew(DOCG4_CMD_FAST_MODE, docptr + DOC_FLASHCOMMAND); + writew(DOC_CMD_RELIABLE_MODE, docptr + DOC_FLASHCOMMAND); + write_nop(docptr); + } + writew(DOCG4_SEQ_PAGEWRITE, docptr + DOC_FLASHSEQUENCE); writew(DOCG4_CMD_PAGEWRITE, docptr + DOC_FLASHCOMMAND); write_nop(docptr); @@ -691,6 +721,15 @@ static void docg4_command(struct mtd_info *mtd, unsigned command, int column, break; case NAND_CMD_SEQIN: + if (unlikely(reliable_mode)) { + uint16_t g4_page = g4_addr >> 16; + + /* writes to odd-numbered 2k pages are invalid */ + if (g4_page & 0x01) + dev_warn(doc->dev, + "invalid reliable mode address\n"); + } + write_page_prologue(mtd, g4_addr); /* hack for deferred write of oob bytes */ From 440b1d73b1b49bc08e1709ee6f6ef7ba2fc1f8ba Mon Sep 17 00:00:00 2001 From: Mike Dunn Date: Fri, 7 Dec 2012 12:07:22 -0800 Subject: [PATCH 91/96] mtd: nand/docg4: reserve bb marker area in ecclayout Modify the nand_ecclayout to place the two bb marker bytes in the oob region off-limits to the user. Signed-off-by: Mike Dunn Acked-by: Robert Jarzmik Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/docg4.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/drivers/mtd/nand/docg4.c b/drivers/mtd/nand/docg4.c index 54b1e5e359b..04e5fa93735 100644 --- a/drivers/mtd/nand/docg4.c +++ b/drivers/mtd/nand/docg4.c @@ -214,15 +214,17 @@ struct docg4_priv { #define DOCG4_FACTORY_BBT_PAGE 16 /* page where read-only factory bbt lives */ /* - * Oob bytes 0 - 6 are available to the user. - * Byte 7 is hamming ecc for first 7 bytes. Bytes 8 - 14 are hw-generated ecc. + * Bytes 0, 1 are used as badblock marker. + * Bytes 2 - 6 are available to the user. + * Byte 7 is hamming ecc for first 7 oob bytes only. + * Bytes 8 - 14 are hw-generated ecc covering entire page + oob bytes 0 - 14. * Byte 15 (the last) is used by the driver as a "page written" flag. */ static struct nand_ecclayout docg4_oobinfo = { .eccbytes = 9, .eccpos = {7, 8, 9, 10, 11, 12, 13, 14, 15}, - .oobavail = 7, - .oobfree = { {0, 7} } + .oobavail = 5, + .oobfree = { {.offset = 2, .length = 5} } }; /* From 3c9c6d657a94f9b9aae498cb5951659cc67fd6ad Mon Sep 17 00:00:00 2001 From: Mike Dunn Date: Fri, 7 Dec 2012 12:07:23 -0800 Subject: [PATCH 92/96] mtd: nand/docg4: fix and improve read of factory bbt This patch does two things related to reading the factory badblock table during initialization: (1) fix error where a non-zero return code from docg4_read_page() is assumed to be an error (it was later changed to be max_bitflips; thanks to Brian Norris for bringing this to my attention a while back), and (2) if there is an error reading the factory bbt, it tries reading another (redundant) factory bbt table. Signed-off-by: Mike Dunn Acked-by: Robert Jarzmik Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/docg4.c | 24 +++++++++++++++++++----- 1 file changed, 19 insertions(+), 5 deletions(-) diff --git a/drivers/mtd/nand/docg4.c b/drivers/mtd/nand/docg4.c index 04e5fa93735..18fa4489e52 100644 --- a/drivers/mtd/nand/docg4.c +++ b/drivers/mtd/nand/docg4.c @@ -212,6 +212,7 @@ struct docg4_priv { #define DOCG4_T 4 /* BCH alg corrects up to 4 bit errors */ #define DOCG4_FACTORY_BBT_PAGE 16 /* page where read-only factory bbt lives */ +#define DOCG4_REDUNDANT_BBT_PAGE 24 /* page where redundant factory bbt lives */ /* * Bytes 0, 1 are used as badblock marker. @@ -1020,16 +1021,15 @@ static int __init read_factory_bbt(struct mtd_info *mtd) struct docg4_priv *doc = nand->priv; uint32_t g4_addr = mtd_to_docg4_address(DOCG4_FACTORY_BBT_PAGE, 0); uint8_t *buf; - int i, block, status; + int i, block; + __u32 eccfailed_stats = mtd->ecc_stats.failed; buf = kzalloc(DOCG4_PAGE_SIZE, GFP_KERNEL); if (buf == NULL) return -ENOMEM; read_page_prologue(mtd, g4_addr); - status = docg4_read_page(mtd, nand, buf, 0, DOCG4_FACTORY_BBT_PAGE); - if (status) - goto exit; + docg4_read_page(mtd, nand, buf, 0, DOCG4_FACTORY_BBT_PAGE); /* * If no memory-based bbt was created, exit. This will happen if module @@ -1041,6 +1041,20 @@ static int __init read_factory_bbt(struct mtd_info *mtd) if (nand->bbt == NULL) /* no memory-based bbt */ goto exit; + if (mtd->ecc_stats.failed > eccfailed_stats) { + /* + * Whoops, an ecc failure ocurred reading the factory bbt. + * It is stored redundantly, so we get another chance. + */ + eccfailed_stats = mtd->ecc_stats.failed; + docg4_read_page(mtd, nand, buf, 0, DOCG4_REDUNDANT_BBT_PAGE); + if (mtd->ecc_stats.failed > eccfailed_stats) { + dev_warn(doc->dev, + "The factory bbt could not be read!\n"); + goto exit; + } + } + /* * Parse factory bbt and update memory-based bbt. Factory bbt format is * simple: one bit per block, block numbers increase left to right (msb @@ -1060,7 +1074,7 @@ static int __init read_factory_bbt(struct mtd_info *mtd) } exit: kfree(buf); - return status; + return 0; } static int docg4_block_markbad(struct mtd_info *mtd, loff_t ofs) From 6f2a6a52560ad8d85710aabd92b7a3239b3a6b07 Mon Sep 17 00:00:00 2001 From: Wolfram Sang Date: Wed, 5 Dec 2012 21:46:02 +0100 Subject: [PATCH 93/96] mtd: nand: gpmi: reset BCH earlier, too, to avoid NAND startup problems It could happen (1 out of 100 times) that NAND did not start up correctly after warm rebooting, so the kernel could not find the UBI or DMA timed out due to a stalled BCH. When resetting BCH together with GPMI, the issue could not be observed anymore (after 10000+ reboots). We probably need the consistent state already before sending any command to NAND, even when no ECC is needed. I chose to keep the extra reset for BCH when changing the flash layout to be on the safe side. Signed-off-by: Wolfram Sang Acked-by: Huang Shijie Cc: stable@vger.kernel.org Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/gpmi-nand/gpmi-lib.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drivers/mtd/nand/gpmi-nand/gpmi-lib.c b/drivers/mtd/nand/gpmi-nand/gpmi-lib.c index 1585c5b1c8b..d84699c7968 100644 --- a/drivers/mtd/nand/gpmi-nand/gpmi-lib.c +++ b/drivers/mtd/nand/gpmi-nand/gpmi-lib.c @@ -165,6 +165,15 @@ int gpmi_init(struct gpmi_nand_data *this) if (ret) goto err_out; + /* + * Reset BCH here, too. We got failures otherwise :( + * See later BCH reset for explanation of MX23 handling + */ + ret = gpmi_reset_block(r->bch_regs, GPMI_IS_MX23(this)); + if (ret) + goto err_out; + + /* Choose NAND mode. */ writel(BM_GPMI_CTRL1_GPMI_MODE, r->gpmi_regs + HW_GPMI_CTRL1_CLR); From 031da73fca29ebba3eea5a512746e01d52e542cd Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Wed, 12 Dec 2012 19:32:15 +1100 Subject: [PATCH 94/96] mtd: block2mtd: throttle writes by calling balance_dirty_pages_ratelimited. If you create a block2mtd device that is larger than main memory, and write to all of it, then lots of pages will be dirtied but they will never be flushed out as nothing calls any variant of balance_dirty_pages. It would be nice to call set_page_dirty_balance(), but that isn't exported, so just call balance_dirty_pages_ratelimited() directly. Signed-off-by: NeilBrown Signed-off-by: Artem Bityutskiy --- drivers/mtd/devices/block2mtd.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/mtd/devices/block2mtd.c b/drivers/mtd/devices/block2mtd.c index 8debac9efde..e081bfeaaf7 100644 --- a/drivers/mtd/devices/block2mtd.c +++ b/drivers/mtd/devices/block2mtd.c @@ -62,6 +62,7 @@ static int _block2mtd_erase(struct block2mtd_dev *dev, loff_t to, size_t len) memset(page_address(page), 0xff, PAGE_SIZE); set_page_dirty(page); unlock_page(page); + balance_dirty_pages_ratelimited(mapping); break; } @@ -152,6 +153,7 @@ static int _block2mtd_write(struct block2mtd_dev *dev, const u_char *buf, memcpy(page_address(page) + offset, buf, cpylen); set_page_dirty(page); unlock_page(page); + balance_dirty_pages_ratelimited(mapping); } page_cache_release(page); From 8204536207e99b3bbbd13d936aaa3b18449b9c00 Mon Sep 17 00:00:00 2001 From: Matthew Leach Date: Mon, 10 Dec 2012 19:12:39 +0000 Subject: [PATCH 95/96] mtd: nand/gpio: use io{read,write}*_rep accessors The {read,write}s{b,w,l} operations are not defined by all architectures and are being removed from the asm-generic/io.h interface. This patch replaces the usage of these string functions in the mtd gpio accessors with io{read,write}{8,16,32}_rep calls instead. Signed-off-by: Matthew Leach Signed-off-by: Will Deacon Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/gpio.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/mtd/nand/gpio.c b/drivers/mtd/nand/gpio.c index 7aec5690289..e789e3f5171 100644 --- a/drivers/mtd/nand/gpio.c +++ b/drivers/mtd/nand/gpio.c @@ -90,14 +90,14 @@ static void gpio_nand_writebuf(struct mtd_info *mtd, const u_char *buf, int len) { struct nand_chip *this = mtd->priv; - writesb(this->IO_ADDR_W, buf, len); + iowrite8_rep(this->IO_ADDR_W, buf, len); } static void gpio_nand_readbuf(struct mtd_info *mtd, u_char *buf, int len) { struct nand_chip *this = mtd->priv; - readsb(this->IO_ADDR_R, buf, len); + ioread8_rep(this->IO_ADDR_R, buf, len); } static void gpio_nand_writebuf16(struct mtd_info *mtd, const u_char *buf, @@ -106,7 +106,7 @@ static void gpio_nand_writebuf16(struct mtd_info *mtd, const u_char *buf, struct nand_chip *this = mtd->priv; if (IS_ALIGNED((unsigned long)buf, 2)) { - writesw(this->IO_ADDR_W, buf, len>>1); + iowrite16_rep(this->IO_ADDR_W, buf, len>>1); } else { int i; unsigned short *ptr = (unsigned short *)buf; @@ -121,7 +121,7 @@ static void gpio_nand_readbuf16(struct mtd_info *mtd, u_char *buf, int len) struct nand_chip *this = mtd->priv; if (IS_ALIGNED((unsigned long)buf, 2)) { - readsw(this->IO_ADDR_R, buf, len>>1); + ioread16_rep(this->IO_ADDR_R, buf, len>>1); } else { int i; unsigned short *ptr = (unsigned short *)buf; From d4d4f1bf6a343b25220fdcdf559fd593dd3e25a7 Mon Sep 17 00:00:00 2001 From: Brian Norris Date: Wed, 14 Nov 2012 21:54:20 -0800 Subject: [PATCH 96/96] mtd: nand: typo in nand_id_has_period() comments The simple example provided in the comments for nand_id_has_period() actually has a period of 3, not 2. Silly mistake... Signed-off-by: Brian Norris Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/nand_base.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c index 0ac49ca5852..8323ac991ad 100644 --- a/drivers/mtd/nand/nand_base.c +++ b/drivers/mtd/nand/nand_base.c @@ -2923,7 +2923,7 @@ static int nand_flash_detect_onfi(struct mtd_info *mtd, struct nand_chip *chip, * * Check if an ID string is repeated within a given sequence of bytes at * specific repetition interval period (e.g., {0x20,0x01,0x7F,0x20} has a - * period of 2). This is a helper function for nand_id_len(). Returns non-zero + * period of 3). This is a helper function for nand_id_len(). Returns non-zero * if the repetition has a period of @period; otherwise, returns zero. */ static int nand_id_has_period(u8 *id_data, int arrlen, int period)