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Merge branch 'master' of /home/stefan/git/u-boot/u-boot

This commit is contained in:
Stefan Roese 2008-08-13 06:47:12 +02:00
parent 9939ffd5fb 8641ff266a
commit 5a7ddf4e1f
127 changed files with 20919 additions and 4215 deletions
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23
Makefile
View File

@ -210,7 +210,7 @@ LIBS += cpu/ixp/npe/libnpe.a
endif
LIBS += lib_$(ARCH)/lib$(ARCH).a
LIBS += fs/cramfs/libcramfs.a fs/fat/libfat.a fs/fdos/libfdos.a fs/jffs2/libjffs2.a \
fs/reiserfs/libreiserfs.a fs/ext2/libext2fs.a
fs/reiserfs/libreiserfs.a fs/ext2/libext2fs.a fs/yaffs2/libyaffs2.a
LIBS += net/libnet.a
LIBS += disk/libdisk.a
LIBS += drivers/bios_emulator/libatibiosemu.a
@ -378,6 +378,7 @@ TAG_SUBDIRS += fs/cramfs
TAG_SUBDIRS += fs/fat
TAG_SUBDIRS += fs/fdos
TAG_SUBDIRS += fs/jffs2
TAG_SUBDIRS += fs/yaffs2
TAG_SUBDIRS += net
TAG_SUBDIRS += disk
TAG_SUBDIRS += common
@ -2010,8 +2011,11 @@ TASREG_config : unconfig
#########################################################################
MPC8313ERDB_33_config \
MPC8313ERDB_66_config: unconfig
MPC8313ERDB_66_config \
MPC8313ERDB_NAND_33_config \
MPC8313ERDB_NAND_66_config: unconfig
@mkdir -p $(obj)include
@mkdir -p $(obj)board/freescale/mpc8313erdb
@if [ "$(findstring _33_,$@)" ] ; then \
$(XECHO) -n "...33M ..." ; \
echo "#define CFG_33MHZ" >>$(obj)include/config.h ; \
@ -2019,6 +2023,11 @@ MPC8313ERDB_66_config: unconfig
if [ "$(findstring _66_,$@)" ] ; then \
$(XECHO) -n "...66M..." ; \
echo "#define CFG_66MHZ" >>$(obj)include/config.h ; \
fi ; \
if [ "$(findstring _NAND_,$@)" ] ; then \
$(XECHO) -n "...NAND..." ; \
echo "TEXT_BASE = 0x00100000" > $(obj)/board/freescale/mpc8313erdb/config.tmp ; \
echo "#define CONFIG_NAND_U_BOOT" >>$(obj)include/config.h ; \
fi ;
@$(MKCONFIG) -a MPC8313ERDB ppc mpc83xx mpc8313erdb freescale
@ -2368,13 +2377,13 @@ at91rm9200dk_config : unconfig
@$(MKCONFIG) $(@:_config=) arm arm920t at91rm9200dk atmel at91rm9200
at91sam9261ek_config : unconfig
@$(MKCONFIG) $(@:_config=) arm arm926ejs at91sam9261ek atmel at91sam9
@$(MKCONFIG) $(@:_config=) arm arm926ejs at91sam9261ek atmel at91
at91sam9263ek_config : unconfig
@$(MKCONFIG) $(@:_config=) arm arm926ejs at91sam9263ek atmel at91sam9
@$(MKCONFIG) $(@:_config=) arm arm926ejs at91sam9263ek atmel at91
at91sam9rlek_config : unconfig
@$(MKCONFIG) $(@:_config=) arm arm926ejs at91sam9rlek atmel at91sam9
@$(MKCONFIG) $(@:_config=) arm arm926ejs at91sam9rlek atmel at91
cmc_pu2_config : unconfig
@$(MKCONFIG) $(@:_config=) arm arm920t cmc_pu2 NULL at91rm9200
@ -2396,10 +2405,10 @@ mp2usb_config : unconfig
#########################################################################
at91cap9adk_config : unconfig
@$(MKCONFIG) $(@:_config=) arm arm926ejs at91cap9adk atmel at91sam9
@$(MKCONFIG) $(@:_config=) arm arm926ejs at91cap9adk atmel at91
at91sam9260ek_config : unconfig
@$(MKCONFIG) $(@:_config=) arm arm926ejs at91sam9260ek atmel at91sam9
@$(MKCONFIG) $(@:_config=) arm arm926ejs at91sam9260ek atmel at91
########################################################################
## ARM Integrator boards - see doc/README-integrator for more info.

43
board/bf537-stamp/nand.c
View File

@ -37,34 +37,29 @@
/*
* hardware specific access to control-lines
*/
static void bfin_hwcontrol(struct mtd_info *mtd, int cmd)
static void bfin_hwcontrol(struct mtd_info *mtd, int cmd, unsigned int ctrl)
{
register struct nand_chip *this = mtd->priv;
u32 IO_ADDR_W = (u32) this->IO_ADDR_W;
switch (cmd) {
case NAND_CTL_SETCLE:
this->IO_ADDR_W = CFG_NAND_BASE + BFIN_NAND_CLE;
break;
case NAND_CTL_CLRCLE:
this->IO_ADDR_W = CFG_NAND_BASE;
break;
case NAND_CTL_SETALE:
this->IO_ADDR_W = CFG_NAND_BASE + BFIN_NAND_ALE;
break;
case NAND_CTL_CLRALE:
this->IO_ADDR_W = CFG_NAND_BASE;
break;
case NAND_CTL_SETNCE:
case NAND_CTL_CLRNCE:
break;
if (ctrl & NAND_CTRL_CHANGE) {
if( ctrl & NAND_CLE )
IO_ADDR_W = CFG_NAND_BASE + BFIN_NAND_CLE;
else
IO_ADDR_W = CFG_NAND_BASE;
if( ctrl & NAND_ALE )
IO_ADDR_W = CFG_NAND_BASE + BFIN_NAND_ALE;
else
IO_ADDR_W = CFG_NAND_BASE;
this->IO_ADDR_W = (void __iomem *) IO_ADDR_W;
}
this->IO_ADDR_R = this->IO_ADDR_W;
/* Drain the writebuffer */
SSYNC();
if (cmd != NAND_CMD_NONE)
writeb(cmd, this->IO_ADDR_W);
}
int bfin_device_ready(struct mtd_info *mtd)
@ -79,11 +74,11 @@ int bfin_device_ready(struct mtd_info *mtd)
* argument are board-specific (per include/linux/mtd/nand.h):
* - IO_ADDR_R?: address to read the 8 I/O lines of the flash device
* - IO_ADDR_W?: address to write the 8 I/O lines of the flash device
* - hwcontrol: hardwarespecific function for accesing control-lines
* - cmd_ctrl: hardwarespecific function for accesing control-lines
* - dev_ready: hardwarespecific function for accesing device ready/busy line
* - enable_hwecc?: function to enable (reset) hardware ecc generator. Must
* only be provided if a hardware ECC is available
* - eccmode: mode of ecc, see defines
* - ecc.mode: mode of ecc, see defines
* - chip_delay: chip dependent delay for transfering data from array to
* read regs (tR)
* - options: various chip options. They can partly be set to inform
@ -98,8 +93,8 @@ void board_nand_init(struct nand_chip *nand)
*PORT(CONFIG_NAND_GPIO_PORT, IO_DIR) &= ~BFIN_NAND_READY;
*PORT(CONFIG_NAND_GPIO_PORT, IO_INEN) |= BFIN_NAND_READY;
nand->hwcontrol = bfin_hwcontrol;
nand->eccmode = NAND_ECC_SOFT;
nand->cmd_ctrl = bfin_hwcontrol;
nand->ecc.mode = NAND_ECC_SOFT;
nand->dev_ready = bfin_device_ready;
nand->chip_delay = 30;
}

49
board/dave/PPChameleonEVB/nand.c
View File

@ -21,7 +21,7 @@
*/
#include <common.h>
#include <asm/io.h>
#if defined(CONFIG_CMD_NAND)
@ -31,31 +31,28 @@
* hardware specific access to control-lines
* function borrowed from Linux 2.6 (drivers/mtd/nand/ppchameleonevb.c)
*/
static void ppchameleonevb_hwcontrol(struct mtd_info *mtdinfo, int cmd)
static void ppchameleonevb_hwcontrol(struct mtd_info *mtd, int cmd, unsigned int ctrl)
{
struct nand_chip *this = mtdinfo->priv;
struct nand_chip *this = mtd->priv;
ulong base = (ulong) this->IO_ADDR_W;
switch(cmd) {
case NAND_CTL_SETCLE:
MACRO_NAND_CTL_SETCLE((unsigned long)base);
break;
case NAND_CTL_CLRCLE:
MACRO_NAND_CTL_CLRCLE((unsigned long)base);
break;
case NAND_CTL_SETALE:
MACRO_NAND_CTL_SETALE((unsigned long)base);
break;
case NAND_CTL_CLRALE:
MACRO_NAND_CTL_CLRALE((unsigned long)base);
break;
case NAND_CTL_SETNCE:
MACRO_NAND_ENABLE_CE((unsigned long)base);
break;
case NAND_CTL_CLRNCE:
MACRO_NAND_DISABLE_CE((unsigned long)base);
break;
if (ctrl & NAND_CTRL_CHANGE) {
if ( ctrl & NAND_CLE )
MACRO_NAND_CTL_SETCLE((unsigned long)base);
else
MACRO_NAND_CTL_CLRCLE((unsigned long)base);
if ( ctrl & NAND_ALE )
MACRO_NAND_CTL_CLRCLE((unsigned long)base);
else
MACRO_NAND_CTL_CLRALE((unsigned long)base);
if ( ctrl & NAND_NCE )
MACRO_NAND_ENABLE_CE((unsigned long)base);
else
MACRO_NAND_DISABLE_CE((unsigned long)base);
}
if (cmd != NAND_CMD_NONE)
writeb(cmd, this->IO_ADDR_W);
}
@ -92,11 +89,11 @@ static int ppchameleonevb_device_ready(struct mtd_info *mtdinfo)
* argument are board-specific (per include/linux/mtd/nand.h):
* - IO_ADDR_R?: address to read the 8 I/O lines of the flash device
* - IO_ADDR_W?: address to write the 8 I/O lines of the flash device
* - hwcontrol: hardwarespecific function for accesing control-lines
* - cmd_ctrl: hardwarespecific function for accesing control-lines
* - dev_ready: hardwarespecific function for accesing device ready/busy line
* - enable_hwecc?: function to enable (reset) hardware ecc generator. Must
* only be provided if a hardware ECC is available
* - eccmode: mode of ecc, see defines
* - ecc.mode: mode of ecc, see defines
* - chip_delay: chip dependent delay for transfering data from array to
* read regs (tR)
* - options: various chip options. They can partly be set to inform
@ -108,9 +105,9 @@ static int ppchameleonevb_device_ready(struct mtd_info *mtdinfo)
int board_nand_init(struct nand_chip *nand)
{
nand->hwcontrol = ppchameleonevb_hwcontrol;
nand->cmd_ctrl = ppchameleonevb_hwcontrol;
nand->dev_ready = ppchameleonevb_device_ready;
nand->eccmode = NAND_ECC_SOFT;
nand->ecc.mode = NAND_ECC_SOFT;
nand->chip_delay = NAND_BIG_DELAY_US;
nand->options = NAND_SAMSUNG_LP_OPTIONS;
return 0;

41
board/delta/nand.c
View File

@ -69,7 +69,7 @@ static struct nand_oobinfo delta_oob = {
/*
* not required for Monahans DFC
*/
static void dfc_hwcontrol(struct mtd_info *mtdinfo, int cmd)
static void dfc_hwcontrol(struct mtd_info *mtd, int cmd, unsigned int ctrl)
{
return;
}
@ -110,30 +110,6 @@ static void dfc_write_buf(struct mtd_info *mtd, const u_char *buf, int len)
}
/*
* These functions are quite problematic for the DFC. Luckily they are
* not used in the current nand code, except for nand_command, which
* we've defined our own anyway. The problem is, that we always need
* to write 4 bytes to the DFC Data Buffer, but in these functions we
* don't know if to buffer the bytes/half words until we've gathered 4
* bytes or if to send them straight away.
*
* Solution: Don't use these with Mona's DFC and complain loudly.
*/
static void dfc_write_word(struct mtd_info *mtd, u16 word)
{
printf("dfc_write_word: WARNING, this function does not work with the Monahans DFC!\n");
}
static void dfc_write_byte(struct mtd_info *mtd, u_char byte)
{
printf("dfc_write_byte: WARNING, this function does not work with the Monahans DFC!\n");
}
/* The original:
* static void dfc_read_buf(struct mtd_info *mtd, const u_char *buf, int len)
*
* Shouldn't this be "u_char * const buf" ?
*/
static void dfc_read_buf(struct mtd_info *mtd, u_char* const buf, int len)
{
int i=0, j;
@ -168,7 +144,7 @@ static void dfc_read_buf(struct mtd_info *mtd, u_char* const buf, int len)
*/
static u16 dfc_read_word(struct mtd_info *mtd)
{
printf("dfc_write_byte: UNIMPLEMENTED.\n");
printf("dfc_read_word: UNIMPLEMENTED.\n");
return 0;
}
@ -289,9 +265,10 @@ static void dfc_new_cmd(void)
/* this function is called after Programm and Erase Operations to
* check for success or failure */
static int dfc_wait(struct mtd_info *mtd, struct nand_chip *this, int state)
static int dfc_wait(struct mtd_info *mtd, struct nand_chip *this)
{
unsigned long ndsr=0, event=0;
int state = this->state;
if(state == FL_WRITING) {
event = NDSR_CS0_CMDD | NDSR_CS0_BBD;
@ -439,7 +416,7 @@ static void dfc_gpio_init(void)
* - dev_ready: hardwarespecific function for accesing device ready/busy line
* - enable_hwecc?: function to enable (reset) hardware ecc generator. Must
* only be provided if a hardware ECC is available
* - eccmode: mode of ecc, see defines
* - ecc.mode: mode of ecc, see defines
* - chip_delay: chip dependent delay for transfering data from array to
* read regs (tR)
* - options: various chip options. They can partly be set to inform
@ -561,20 +538,18 @@ int board_nand_init(struct nand_chip *nand)
/* wait(10); */
nand->hwcontrol = dfc_hwcontrol;
nand->cmd_ctrl = dfc_hwcontrol;
/* nand->dev_ready = dfc_device_ready; */
nand->eccmode = NAND_ECC_SOFT;
nand->ecc.mode = NAND_ECC_SOFT;
nand->options = NAND_BUSWIDTH_16;
nand->waitfunc = dfc_wait;
nand->read_byte = dfc_read_byte;
nand->write_byte = dfc_write_byte;
nand->read_word = dfc_read_word;
nand->write_word = dfc_write_word;
nand->read_buf = dfc_read_buf;
nand->write_buf = dfc_write_buf;
nand->cmdfunc = dfc_cmdfunc;
nand->autooob = &delta_oob;
/* nand->autooob = &delta_oob; */
nand->badblock_pattern = &delta_bbt_descr;
return 0;
}

42
board/esd/common/esd405ep_nand.c
View File

@ -30,28 +30,26 @@
/*
* hardware specific access to control-lines
*/
static void esd405ep_nand_hwcontrol(struct mtd_info *mtdinfo, int cmd)
static void esd405ep_nand_hwcontrol(struct mtd_info *mtd, int cmd, unsigned int ctrl)
{
switch(cmd) {
case NAND_CTL_SETCLE:
out_be32((void *)GPIO0_OR, in_be32((void *)GPIO0_OR) | CFG_NAND_CLE);
break;
case NAND_CTL_CLRCLE:
out_be32((void *)GPIO0_OR, in_be32((void *)GPIO0_OR) & ~CFG_NAND_CLE);
break;
case NAND_CTL_SETALE:
out_be32((void *)GPIO0_OR, in_be32((void *)GPIO0_OR) | CFG_NAND_ALE);
break;
case NAND_CTL_CLRALE:
out_be32((void *)GPIO0_OR, in_be32((void *)GPIO0_OR) & ~CFG_NAND_ALE);
break;
case NAND_CTL_SETNCE:
out_be32((void *)GPIO0_OR, in_be32((void *)GPIO0_OR) & ~CFG_NAND_CE);
break;
case NAND_CTL_CLRNCE:
out_be32((void *)GPIO0_OR, in_be32((void *)GPIO0_OR) | CFG_NAND_CE);
break;
struct nand_chip *this = mtd->priv;
if (ctrl & NAND_CTRL_CHANGE) {
if ( ctrl & NAND_CLE )
out_be32((void *)GPIO0_OR, in_be32((void *)GPIO0_OR) | CFG_NAND_CLE);
else
out_be32((void *)GPIO0_OR, in_be32((void *)GPIO0_OR) & ~CFG_NAND_CLE);
if ( ctrl & NAND_ALE )
out_be32((void *)GPIO0_OR, in_be32((void *)GPIO0_OR) | CFG_NAND_ALE);
else
out_be32((void *)GPIO0_OR, in_be32((void *)GPIO0_OR) & ~CFG_NAND_ALE);
if ( ctrl & NAND_NCE )
out_be32((void *)GPIO0_OR, in_be32((void *)GPIO0_OR) & ~CFG_NAND_CE);
else
out_be32((void *)GPIO0_OR, in_be32((void *)GPIO0_OR) | CFG_NAND_CE);
}
if (cmd != NAND_CMD_NONE)
writeb(cmd, this->IO_ADDR_W);
}
@ -77,9 +75,9 @@ int board_nand_init(struct nand_chip *nand)
/*
* Initialize nand_chip structure
*/
nand->hwcontrol = esd405ep_nand_hwcontrol;
nand->cmd_ctrl = esd405ep_nand_hwcontrol;
nand->dev_ready = esd405ep_nand_device_ready;
nand->eccmode = NAND_ECC_SOFT;
nand->ecc.mode = NAND_ECC_SOFT;
nand->chip_delay = NAND_BIG_DELAY_US;
nand->options = NAND_SAMSUNG_LP_OPTIONS;
return 0;

42
board/freescale/m5329evb/nand.c
View File

@ -40,36 +40,26 @@ DECLARE_GLOBAL_DATA_PTR;
#define SET_ALE 0x08
#define CLR_ALE ~SET_ALE
static void nand_hwcontrol(struct mtd_info *mtdinfo, int cmd)
static void nand_hwcontrol(struct mtd_info *mtd, int cmd, unsigned int ctrl)
{
struct nand_chip *this = mtdinfo->priv;
volatile fbcs_t *fbcs = (fbcs_t *) MMAP_FBCS;
/* volatile fbcs_t *fbcs = (fbcs_t *) MMAP_FBCS; TODO: handle wp */
u32 nand_baseaddr = (u32) this->IO_ADDR_W;
switch (cmd) {
case NAND_CTL_SETNCE:
case NAND_CTL_CLRNCE:
break;
case NAND_CTL_SETCLE:
nand_baseaddr |= SET_CLE;
break;
case NAND_CTL_CLRCLE:
nand_baseaddr &= CLR_CLE;
break;
case NAND_CTL_SETALE:
nand_baseaddr |= SET_ALE;
break;
case NAND_CTL_CLRALE:
nand_baseaddr |= CLR_ALE;
break;
case NAND_CTL_SETWP:
fbcs->csmr2 |= FBCS_CSMR_WP;
break;
case NAND_CTL_CLRWP:
fbcs->csmr2 &= ~FBCS_CSMR_WP;
break;
if (ctrl & NAND_CTRL_CHANGE) {
if ( ctrl & NAND_CLE )
nand_baseaddr |= SET_CLE;
else
nand_baseaddr &= CLR_CLE;
if ( ctrl & NAND_ALE )
nand_baseaddr |= SET_ALE;
else
nand_baseaddr &= CLR_ALE;
}
this->IO_ADDR_W = (void __iomem *)(nand_baseaddr);
if (cmd != NAND_CMD_NONE)
writeb(cmd, this->IO_ADDR_W);
}
static void nand_write_byte(struct mtd_info *mtdinfo, u_char byte)
@ -103,8 +93,8 @@ int board_nand_init(struct nand_chip *nand)
gpio->podr_timer = 0;
nand->chip_delay = 50;
nand->eccmode = NAND_ECC_SOFT;
nand->hwcontrol = nand_hwcontrol;
nand->ecc.mode = NAND_ECC_SOFT;
nand->cmd_ctrl = nand_hwcontrol;
nand->read_byte = nand_read_byte;
nand->write_byte = nand_write_byte;
nand->dev_ready = nand_dev_ready;

6
board/freescale/mpc8313erdb/config.mk
View File

@ -1 +1,7 @@
ifndef NAND_SPL
sinclude $(OBJTREE)/board/$(BOARDDIR)/config.tmp
endif
ifndef TEXT_BASE
TEXT_BASE = 0xFE000000
endif

32
board/freescale/mpc8313erdb/mpc8313erdb.c
View File

@ -29,6 +29,8 @@
#include <pci.h>
#include <mpc83xx.h>
#include <vsc7385.h>
#include <ns16550.h>
#include <nand.h>
DECLARE_GLOBAL_DATA_PTR;
@ -50,6 +52,7 @@ int checkboard(void)
return 0;
}
#ifndef CONFIG_NAND_SPL
static struct pci_region pci_regions[] = {
{
bus_start: CFG_PCI1_MEM_BASE,
@ -128,3 +131,32 @@ void ft_board_setup(void *blob, bd_t *bd)
#endif
}
#endif
#else /* CONFIG_NAND_SPL */
void board_init_f(ulong bootflag)
{
board_early_init_f();
NS16550_init((NS16550_t)(CFG_IMMR + 0x4500),
CFG_NS16550_CLK / 16 / CONFIG_BAUDRATE);
puts("NAND boot... ");
init_timebase();
initdram(0);
relocate_code(CFG_NAND_U_BOOT_RELOC + 0x10000, (gd_t *)gd,
CFG_NAND_U_BOOT_RELOC);
}
void board_init_r(gd_t *gd, ulong dest_addr)
{
nand_boot();
}
void putc(char c)
{
if (gd->flags & GD_FLG_SILENT)
return;
if (c == '\n')
NS16550_putc((NS16550_t)(CFG_IMMR + 0x4500), '\r');
NS16550_putc((NS16550_t)(CFG_IMMR + 0x4500), c);
}
#endif

5
board/freescale/mpc8313erdb/sdram.c
View File

@ -58,8 +58,10 @@ static void resume_from_sleep(void)
*/
static long fixed_sdram(void)
{
volatile immap_t *im = (volatile immap_t *)CFG_IMMR;
u32 msize = CFG_DDR_SIZE * 1024 * 1024;
#ifndef CFG_RAMBOOT
volatile immap_t *im = (volatile immap_t *)CFG_IMMR;
u32 msize_log2 = __ilog2(msize);
im->sysconf.ddrlaw[0].bar = CFG_DDR_SDRAM_BASE >> 12;
@ -100,6 +102,7 @@ static long fixed_sdram(void)
/* enable DDR controller */
im->ddr.sdram_cfg |= SDRAM_CFG_MEM_EN;
#endif
return msize;
}

78
board/nc650/nand.c
View File

@ -22,7 +22,7 @@
*/
#include <common.h>
#include <asm/io.h>
#if defined(CONFIG_CMD_NAND)
@ -32,57 +32,49 @@
/*
* hardware specific access to control-lines
*/
static void nc650_hwcontrol(struct mtd_info *mtd, int cmd)
static void nc650_hwcontrol(struct mtd_info *mtd, int cmd, unsigned int ctrl)
{
struct nand_chip *this = mtd->priv;
switch(cmd) {
case NAND_CTL_SETCLE:
this->IO_ADDR_W += 2;
break;
case NAND_CTL_CLRCLE:
this->IO_ADDR_W -= 2;
break;
case NAND_CTL_SETALE:
this->IO_ADDR_W += 1;
break;
case NAND_CTL_CLRALE:
this->IO_ADDR_W -= 1;
break;
case NAND_CTL_SETNCE:
case NAND_CTL_CLRNCE:
/* nop */
break;
if (ctrl & NAND_CTRL_CHANGE) {
if ( ctrl & NAND_CLE )
this->IO_ADDR_W += 2;
else
this->IO_ADDR_W -= 2;
if ( ctrl & NAND_ALE )
this->IO_ADDR_W += 1;
else
this->IO_ADDR_W -= 1;
}
if (cmd != NAND_CMD_NONE)
writeb(cmd, this->IO_ADDR_W);
}
#elif defined(CONFIG_IDS852_REV2)
/*
* hardware specific access to control-lines
*/
static void nc650_hwcontrol(struct mtd_info *mtd, int cmd)
static void nc650_hwcontrol(struct mtd_info *mtd, int cmd, unsigned int ctrl)
{
struct nand_chip *this = mtd->priv;
switch(cmd) {
case NAND_CTL_SETCLE:
*(((volatile __u8 *) this->IO_ADDR_W) + 0xa) = 0;
break;
case NAND_CTL_CLRCLE:
*(((volatile __u8 *) this->IO_ADDR_W) + 0x8) = 0;
break;
case NAND_CTL_SETALE:
*(((volatile __u8 *) this->IO_ADDR_W) + 0x9) = 0;
break;
case NAND_CTL_CLRALE:
*(((volatile __u8 *) this->IO_ADDR_W) + 0x8) = 0;
break;
case NAND_CTL_SETNCE:
*(((volatile __u8 *) this->IO_ADDR_W) + 0x8) = 0;
break;
case NAND_CTL_CLRNCE:
*(((volatile __u8 *) this->IO_ADDR_W) + 0xc) = 0;
break;
if (ctrl & NAND_CTRL_CHANGE) {
if ( ctrl & NAND_CLE )
writeb(0, (volatile __u8 *) this->IO_ADDR_W + 0xa);
else
writeb(0, (volatile __u8 *) this->IO_ADDR_W) + 0x8);
if ( ctrl & NAND_ALE )
writeb(0, (volatile __u8 *) this->IO_ADDR_W) + 0x9);
else
writeb(0, (volatile __u8 *) this->IO_ADDR_W) + 0x8);
if ( ctrl & NAND_NCE )
writeb(0, (volatile __u8 *) this->IO_ADDR_W) + 0x8);
else
writeb(0, (volatile __u8 *) this->IO_ADDR_W) + 0xc);
}
if (cmd != NAND_CMD_NONE)
writeb(cmd, this->IO_ADDR_W);
}
#else
#error Unknown IDS852 module revision
@ -93,11 +85,11 @@ static void nc650_hwcontrol(struct mtd_info *mtd, int cmd)
* argument are board-specific (per include/linux/mtd/nand.h):
* - IO_ADDR_R?: address to read the 8 I/O lines of the flash device
* - IO_ADDR_W?: address to write the 8 I/O lines of the flash device
* - hwcontrol: hardwarespecific function for accesing control-lines
* - cmd_ctrl: hardwarespecific function for accesing control-lines
* - dev_ready: hardwarespecific function for accesing device ready/busy line
* - enable_hwecc?: function to enable (reset) hardware ecc generator. Must
* only be provided if a hardware ECC is available
* - eccmode: mode of ecc, see defines
* - eccm.ode: mode of ecc, see defines
* - chip_delay: chip dependent delay for transfering data from array to
* read regs (tR)
* - options: various chip options. They can partly be set to inform
@ -109,8 +101,8 @@ static void nc650_hwcontrol(struct mtd_info *mtd, int cmd)
int board_nand_init(struct nand_chip *nand)
{
nand->hwcontrol = nc650_hwcontrol;
nand->eccmode = NAND_ECC_SOFT;
nand->cmd_ctrl = nc650_hwcontrol;
nand->ecc.mode = NAND_ECC_SOFT;
nand->chip_delay = 12;
/* nand->options = NAND_SAMSUNG_LP_OPTIONS;*/
return 0;

20
board/netstar/nand.c
View File

@ -21,6 +21,7 @@
*/
#include <common.h>
#include <asm/io.h>
#if defined(CONFIG_CMD_NAND)
@ -32,24 +33,29 @@
#define MASK_CLE 0x02
#define MASK_ALE 0x04
static void netstar_nand_hwcontrol(struct mtd_info *mtd, int cmd)
static void netstar_nand_hwcontrol(struct mtd_info *mtd, int cmd, unsigned int ctrl)
{
struct nand_chip *this = mtd->priv;
ulong IO_ADDR_W = (ulong) this->IO_ADDR_W;
IO_ADDR_W &= ~(MASK_ALE|MASK_CLE);
switch (cmd) {
case NAND_CTL_SETCLE: IO_ADDR_W |= MASK_CLE; break;
case NAND_CTL_SETALE: IO_ADDR_W |= MASK_ALE; break;
if (ctrl & NAND_CTRL_CHANGE) {
if ( ctrl & NAND_CLE )
IO_ADDR_W |= MASK_CLE;
if ( ctrl & NAND_ALE )
IO_ADDR_W |= MASK_ALE;
}
this->IO_ADDR_W = (void *) IO_ADDR_W;
this->IO_ADDR_W = (void __iomem *) IO_ADDR_W;
if (cmd != NAND_CMD_NONE)
writeb(cmd, this->IO_ADDR_W);
}
int board_nand_init(struct nand_chip *nand)
{
nand->options = NAND_SAMSUNG_LP_OPTIONS;
nand->eccmode = NAND_ECC_SOFT;
nand->hwcontrol = netstar_nand_hwcontrol;
nand->ecc.mode = NAND_ECC_SOFT;
nand->cmd_ctrl = netstar_nand_hwcontrol;
nand->chip_delay = 400;
return 0;
}

57
board/prodrive/alpr/nand.c
View File

@ -56,43 +56,24 @@ static struct alpr_ndfc_regs *alpr_ndfc = NULL;
*
* There are 2 NAND devices on the board, a Hynix HY27US08561A (1 GByte).
*/
static void alpr_nand_hwcontrol(struct mtd_info *mtd, int cmd)
static void alpr_nand_hwcontrol(struct mtd_info *mtd, int cmd, unsigned int ctrl)
{
switch (cmd) {
case NAND_CTL_SETCLE:
hwctl |= 0x1;
break;
case NAND_CTL_CLRCLE:
hwctl &= ~0x1;
break;
case NAND_CTL_SETALE:
hwctl |= 0x2;
break;
case NAND_CTL_CLRALE:
hwctl &= ~0x2;
break;
case NAND_CTL_SETNCE:
break;
case NAND_CTL_CLRNCE:
writeb(0x00, &(alpr_ndfc->term));
break;
struct nand_chip *this = mtd->priv;
if (ctrl & NAND_CTRL_CHANGE) {
if ( ctrl & NAND_CLE )
hwctl |= 0x1;
else
hwctl &= ~0x1;
if ( ctrl & NAND_ALE )
hwctl |= 0x2;
else
hwctl &= ~0x2;
if ( (ctrl & NAND_NCE) != NAND_NCE)
writeb(0x00, &(alpr_ndfc->term));
}
}
static void alpr_nand_write_byte(struct mtd_info *mtd, u_char byte)
{
struct nand_chip *nand = mtd->priv;
if (hwctl & 0x1)
/*
* IO_ADDR_W used as CMD[i] reg to support multiple NAND
* chips.
*/
writeb(byte, nand->IO_ADDR_W);
else if (hwctl & 0x2) {
writeb(byte, &(alpr_ndfc->addr_wait));
} else
writeb(byte, &(alpr_ndfc->data));
if (cmd != NAND_CMD_NONE)
writeb(cmd, this->IO_ADDR_W);
}
static u_char alpr_nand_read_byte(struct mtd_info *mtd)
@ -158,12 +139,10 @@ int board_nand_init(struct nand_chip *nand)
{
alpr_ndfc = (struct alpr_ndfc_regs *)CFG_NAND_BASE;
nand->eccmode = NAND_ECC_SOFT;
nand->ecc.mode = NAND_ECC_SOFT;
/* Reference hardware control function */
nand->hwcontrol = alpr_nand_hwcontrol;
/* Set command delay time */
nand->write_byte = alpr_nand_write_byte;
nand->cmd_ctrl = alpr_nand_hwcontrol;
nand->read_byte = alpr_nand_read_byte;
nand->write_buf = alpr_nand_write_buf;
nand->read_buf = alpr_nand_read_buf;

51
board/prodrive/pdnb3/nand.c
View File

@ -52,40 +52,26 @@ static struct pdnb3_ndfc_regs *pdnb3_ndfc;
*
* There is one NAND devices on the board, a Hynix HY27US08561A (32 MByte).
*/
static void pdnb3_nand_hwcontrol(struct mtd_info *mtd, int cmd)
static void pdnb3_nand_hwcontrol(struct mtd_info *mtd, int cmd, unsigned int ctrl)
{
switch (cmd) {
case NAND_CTL_SETCLE:
hwctl |= 0x1;
break;
case NAND_CTL_CLRCLE:
hwctl &= ~0x1;
break;
struct nand_chip *this = mtd->priv;
case NAND_CTL_SETALE:
hwctl |= 0x2;
break;
case NAND_CTL_CLRALE:
hwctl &= ~0x2;
break;
case NAND_CTL_SETNCE:
break;
case NAND_CTL_CLRNCE:
writeb(0x00, &(pdnb3_ndfc->term));
break;
if (ctrl & NAND_CTRL_CHANGE) {
if ( ctrl & NAND_CLE )
hwctl |= 0x1;
else
hwctl &= ~0x1;
if ( ctrl & NAND_ALE )
hwctl |= 0x2;
else
hwctl &= ~0x2;
if ( (ctrl & NAND_NCE) != NAND_NCE)
writeb(0x00, &(pdnb3_ndfc->term));
}
if (cmd != NAND_CMD_NONE)
writeb(cmd, this->IO_ADDR_W);
}
static void pdnb3_nand_write_byte(struct mtd_info *mtd, u_char byte)
{
if (hwctl & 0x1)
writeb(byte, &(pdnb3_ndfc->cmd));
else if (hwctl & 0x2)
writeb(byte, &(pdnb3_ndfc->addr));
else
writeb(byte, &(pdnb3_ndfc->data));
}
static u_char pdnb3_nand_read_byte(struct mtd_info *mtd)
{
@ -152,16 +138,13 @@ int board_nand_init(struct nand_chip *nand)
{
pdnb3_ndfc = (struct pdnb3_ndfc_regs *)CFG_NAND_BASE;
nand->eccmode = NAND_ECC_SOFT;
nand->ecc.mode = NAND_ECC_SOFT;
/* Set address of NAND IO lines (Using Linear Data Access Region) */
nand->IO_ADDR_R = (void __iomem *) ((ulong) pdnb3_ndfc + 0x4);
nand->IO_ADDR_W = (void __iomem *) ((ulong) pdnb3_ndfc + 0x4);
/* Reference hardware control function */
nand->hwcontrol = pdnb3_nand_hwcontrol;
/* Set command delay time */
nand->hwcontrol = pdnb3_nand_hwcontrol;
nand->write_byte = pdnb3_nand_write_byte;
nand->cmd_ctrl = pdnb3_nand_hwcontrol;
nand->read_byte = pdnb3_nand_read_byte;
nand->write_buf = pdnb3_nand_write_buf;
nand->read_buf = pdnb3_nand_read_buf;

44
board/sc3/sc3nand.c
View File

@ -39,30 +39,26 @@
static void *sc3_io_base;
static void *sc3_control_base = (void *)0xEF600700;
static void sc3_nand_hwcontrol(struct mtd_info *mtd, int cmd)
static void sc3_nand_hwcontrol(struct mtd_info *mtd, int cmd, unsigned int ctrl)
{
switch (cmd) {
case NAND_CTL_SETCLE:
set_bit (SC3_NAND_CLE, sc3_control_base);
break;
case NAND_CTL_CLRCLE:
clear_bit (SC3_NAND_CLE, sc3_control_base);
break;
case NAND_CTL_SETALE:
set_bit (SC3_NAND_ALE, sc3_control_base);
break;
case NAND_CTL_CLRALE:
clear_bit (SC3_NAND_ALE, sc3_control_base);
break;
case NAND_CTL_SETNCE:
set_bit (SC3_NAND_CE, sc3_control_base);
break;
case NAND_CTL_CLRNCE:
clear_bit (SC3_NAND_CE, sc3_control_base);
break;
struct nand_chip *this = mtd->priv;
if (ctrl & NAND_CTRL_CHANGE) {
if ( ctrl & NAND_CLE )
set_bit (SC3_NAND_CLE, sc3_control_base);
else
clear_bit (SC3_NAND_CLE, sc3_control_base);
if ( ctrl & NAND_ALE )
set_bit (SC3_NAND_ALE, sc3_control_base);
else
clear_bit (SC3_NAND_ALE, sc3_control_base);
if ( ctrl & NAND_NCE )
set_bit (SC3_NAND_CE, sc3_control_base);
else
clear_bit (SC3_NAND_CE, sc3_control_base);
}
if (cmd != NAND_CMD_NONE)
writeb(cmd, this->IO_ADDR_W);
}
static int sc3_nand_dev_ready(struct mtd_info *mtd)
@ -79,14 +75,14 @@ static void sc3_select_chip(struct mtd_info *mtd, int chip)
int board_nand_init(struct nand_chip *nand)
{
nand->eccmode = NAND_ECC_SOFT;
nand->ecc.mode = NAND_ECC_SOFT;
sc3_io_base = (void *) CFG_NAND_BASE;
/* Set address of NAND IO lines (Using Linear Data Access Region) */
nand->IO_ADDR_R = (void __iomem *) sc3_io_base;
nand->IO_ADDR_W = (void __iomem *) sc3_io_base;
/* Reference hardware control function */
nand->hwcontrol = sc3_nand_hwcontrol;
nand->cmd_ctrl = sc3_nand_hwcontrol;
nand->dev_ready = sc3_nand_dev_ready;
nand->select_chip = sc3_select_chip;
return 0;

32
board/tqc/tqm8272/tqm8272.c
View File

@ -1068,24 +1068,22 @@ int update_flash_size (int flash_size)
static u8 hwctl = 0;
static void upmnand_hwcontrol(struct mtd_info *mtdinfo, int cmd)
static void upmnand_hwcontrol(struct mtd_info *mtd, int cmd, unsigned int ctrl)
{
switch (cmd) {
case NAND_CTL_SETCLE:
hwctl |= 0x1;
break;
case NAND_CTL_CLRCLE:
hwctl &= ~0x1;
break;
struct nand_chip *this = mtd->priv;
case NAND_CTL_SETALE:
hwctl |= 0x2;
break;
case NAND_CTL_CLRALE:
hwctl &= ~0x2;
break;
if (ctrl & NAND_CTRL_CHANGE) {
if ( ctrl & NAND_CLE )
hwctl |= 0x1;
else
hwctl &= ~0x1;
if ( ctrl & NAND_ALE )
hwctl |= 0x2;
else
hwctl &= ~0x2;
}
if (cmd != NAND_CMD_NONE)
writeb(cmd, this->IO_ADDR_W);
}
static void upmnand_write_byte(struct mtd_info *mtdinfo, u_char byte)
@ -1188,9 +1186,9 @@ int board_nand_init(struct nand_chip *nand)
memctl->memc_br3 = CFG_NAND_BR;
memctl->memc_mbmr = (MxMR_OP_NORM);
nand->eccmode = NAND_ECC_SOFT;
nand->ecc.mode = NAND_ECC_SOFT;
nand->hwcontrol = upmnand_hwcontrol;
nand->cmd_ctrl = upmnand_hwcontrol;
nand->read_byte = upmnand_read_byte;
nand->write_byte = upmnand_write_byte;
nand->dev_ready = tqm8272_dev_ready;

39
board/zylonite/nand.c
View File

@ -69,7 +69,7 @@ static struct nand_oobinfo delta_oob = {
/*
* not required for Monahans DFC
*/
static void dfc_hwcontrol(struct mtd_info *mtdinfo, int cmd)
static void dfc_hwcontrol(struct mtd_info *mtd, int cmd, unsigned int ctrl)
{
return;
}
@ -110,25 +110,6 @@ static void dfc_write_buf(struct mtd_info *mtd, const u_char *buf, int len)
}
/*
* These functions are quite problematic for the DFC. Luckily they are
* not used in the current nand code, except for nand_command, which
* we've defined our own anyway. The problem is, that we always need
* to write 4 bytes to the DFC Data Buffer, but in these functions we
* don't know if to buffer the bytes/half words until we've gathered 4
* bytes or if to send them straight away.
*
* Solution: Don't use these with Mona's DFC and complain loudly.
*/
static void dfc_write_word(struct mtd_info *mtd, u16 word)
{
printf("dfc_write_word: WARNING, this function does not work with the Monahans DFC!\n");
}
static void dfc_write_byte(struct mtd_info *mtd, u_char byte)
{
printf("dfc_write_byte: WARNING, this function does not work with the Monahans DFC!\n");
}
/* The original:
* static void dfc_read_buf(struct mtd_info *mtd, const u_char *buf, int len)
*
@ -168,7 +149,7 @@ static void dfc_read_buf(struct mtd_info *mtd, u_char* const buf, int len)
*/
static u16 dfc_read_word(struct mtd_info *mtd)
{
printf("dfc_write_byte: UNIMPLEMENTED.\n");
printf("dfc_read_word: UNIMPLEMENTED.\n");
return 0;
}
@ -289,9 +270,10 @@ static void dfc_new_cmd(void)
/* this function is called after Programm and Erase Operations to
* check for success or failure */
static int dfc_wait(struct mtd_info *mtd, struct nand_chip *this, int state)
static int dfc_wait(struct mtd_info *mtd, struct nand_chip *this)
{
unsigned long ndsr=0, event=0;
int state = this->state;
if(state == FL_WRITING) {
event = NDSR_CS0_CMDD | NDSR_CS0_BBD;
@ -435,11 +417,11 @@ static void dfc_gpio_init(void)
* argument are board-specific (per include/linux/mtd/nand_new.h):
* - IO_ADDR_R?: address to read the 8 I/O lines of the flash device
* - IO_ADDR_W?: address to write the 8 I/O lines of the flash device
* - hwcontrol: hardwarespecific function for accesing control-lines
* - cmd_ctrl: hardwarespecific function for accesing control-lines
* - dev_ready: hardwarespecific function for accesing device ready/busy line
* - enable_hwecc?: function to enable (reset) hardware ecc generator. Must
* only be provided if a hardware ECC is available
* - eccmode: mode of ecc, see defines
* - ecc.mode: mode of ecc, see defines
* - chip_delay: chip dependent delay for transfering data from array to
* read regs (tR)
* - options: various chip options. They can partly be set to inform
@ -560,21 +542,18 @@ int board_nand_init(struct nand_chip *nand)
/* wait 10 us due to cmd buffer clear reset */
/* wait(10); */
nand->hwcontrol = dfc_hwcontrol;
nand->cmd_ctrl = dfc_hwcontrol;
/* nand->dev_ready = dfc_device_ready; */
nand->eccmode = NAND_ECC_SOFT;
nand->ecc.mode = NAND_ECC_SOFT;
nand->options = NAND_BUSWIDTH_16;
nand->waitfunc = dfc_wait;
nand->read_byte = dfc_read_byte;
nand->write_byte = dfc_write_byte;
nand->read_word = dfc_read_word;
nand->write_word = dfc_write_word;
nand->read_buf = dfc_read_buf;
nand->write_buf = dfc_write_buf;
nand->cmdfunc = dfc_cmdfunc;
nand->autooob = &delta_oob;
/* nand->autooob = &delta_oob; */
nand->badblock_pattern = &delta_bbt_descr;
return 0;
}

1
common/Makefile
View File

@ -98,6 +98,7 @@ COBJS-$(CONFIG_CMD_TERMINAL) += cmd_terminal.o
COBJS-$(CONFIG_CMD_UNIVERSE) += cmd_universe.o
COBJS-$(CONFIG_CMD_USB) += cmd_usb.o
COBJS-$(CONFIG_CMD_XIMG) += cmd_ximg.o
COBJS-$(CONFIG_YAFFS2) += cmd_yaffs2.o
COBJS-y += cmd_vfd.o
COBJS-y += command.o
COBJS-y += console.o

9
common/cmd_doc.c
View File

@ -14,6 +14,12 @@
#include <linux/mtd/nftl.h>
#include <linux/mtd/doc2000.h>
/*
* ! BROKEN !
*
* TODO: must be implemented and tested by someone with HW
*/
#if 0
#ifdef CFG_DOC_SUPPORT_2000
#define DoC_is_2000(doc) (doc->ChipID == DOC_ChipID_Doc2k)
#else
@ -1629,3 +1635,6 @@ void doc_probe(unsigned long physadr)
puts ("No DiskOnChip found\n");
}
}
#else
void doc_probe(unsigned long physadr) {}
#endif

253
common/cmd_nand.c
View File

@ -18,6 +18,7 @@
*
*/
#include <common.h>
#include <linux/mtd/mtd.h>
#if defined(CONFIG_CMD_NAND)
@ -34,48 +35,58 @@
int mtdparts_init(void);
int id_parse(const char *id, const char **ret_id, u8 *dev_type, u8 *dev_num);
int find_dev_and_part(const char *id, struct mtd_device **dev,
u8 *part_num, struct part_info **part);
u8 *part_num, struct part_info **part);
#endif
static int nand_dump_oob(nand_info_t *nand, ulong off)
{
return 0;
}
static int nand_dump(nand_info_t *nand, ulong off)
static int nand_dump(nand_info_t *nand, ulong off, int only_oob)
{
int i;
u_char *buf, *p;
u_char *datbuf, *oobbuf, *p;
buf = malloc(nand->oobblock + nand->oobsize);
if (!buf) {
datbuf = malloc(nand->writesize + nand->oobsize);
oobbuf = malloc(nand->oobsize);
if (!datbuf || !oobbuf) {
puts("No memory for page buffer\n");
return 1;
}
off &= ~(nand->oobblock - 1);
i = nand_read_raw(nand, buf, off, nand->oobblock, nand->oobsize);
off &= ~(nand->writesize - 1);
loff_t addr = (loff_t) off;
struct mtd_oob_ops ops;
memset(&ops, 0, sizeof(ops));
ops.datbuf = datbuf;
ops.oobbuf = oobbuf; /* must exist, but oob data will be appended to ops.datbuf */
ops.len = nand->writesize;
ops.ooblen = nand->oobsize;
ops.mode = MTD_OOB_RAW;
i = nand->read_oob(nand, addr, &ops);
if (i < 0) {
printf("Error (%d) reading page %08lx\n", i, off);
free(buf);
free(datbuf);
free(oobbuf);
return 1;
}
printf("Page %08lx dump:\n", off);
i = nand->oobblock >> 4; p = buf;
i = nand->writesize >> 4;
p = datbuf;
while (i--) {
printf( "\t%02x %02x %02x %02x %02x %02x %02x %02x"
" %02x %02x %02x %02x %02x %02x %02x %02x\n",
p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7],
p[8], p[9], p[10], p[11], p[12], p[13], p[14], p[15]);
if (!only_oob)
printf("\t%02x %02x %02x %02x %02x %02x %02x %02x"
" %02x %02x %02x %02x %02x %02x %02x %02x\n",
p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7],
p[8], p[9], p[10], p[11], p[12], p[13], p[14],
p[15]);
p += 16;
}
puts("OOB:\n");
i = nand->oobsize >> 3;
while (i--) {
printf( "\t%02x %02x %02x %02x %02x %02x %02x %02x\n",
p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7]);
printf("\t%02x %02x %02x %02x %02x %02x %02x %02x\n",
p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7]);
p += 8;
}
free(buf);
free(datbuf);
free(oobbuf);
return 0;
}
@ -155,7 +166,7 @@ out:
int do_nand(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
{
int i, dev, ret;
int i, dev, ret = 0;
ulong addr, off;
size_t size;
char *cmd, *s;
@ -182,8 +193,8 @@ int do_nand(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
for (i = 0; i < CFG_MAX_NAND_DEVICE; i++) {
if (nand_info[i].name)
printf("Device %d: %s, sector size %u KiB\n",
i, nand_info[i].name,
nand_info[i].erasesize >> 10);
i, nand_info[i].name,
nand_info[i].erasesize >> 10);
}
return 0;
}
@ -196,7 +207,7 @@ int do_nand(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
puts("\nno devices available\n");
else
printf("\nDevice %d: %s\n", nand_curr_device,
nand_info[nand_curr_device].name);
nand_info[nand_curr_device].name);
return 0;
}
dev = (int)simple_strtoul(argv[2], NULL, 10);
@ -299,15 +310,14 @@ int do_nand(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
off = (int)simple_strtoul(argv[2], NULL, 16);
if (s != NULL && strcmp(s, ".oob") == 0)
ret = nand_dump_oob(nand, off);
ret = nand_dump(nand, off, 1);
else
ret = nand_dump(nand, off);
ret = nand_dump(nand, off, 0);
return ret == 0 ? 1 : 0;
}
/* read write */
if (strncmp(cmd, "read", 4) == 0 || strncmp(cmd, "write", 5) == 0) {
int read;
@ -322,43 +332,29 @@ int do_nand(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
return 1;
s = strchr(cmd, '.');
if (s != NULL &&
(!strcmp(s, ".jffs2") || !strcmp(s, ".e") || !strcmp(s, ".i"))) {
if (read) {
/* read */
nand_read_options_t opts;
memset(&opts, 0, sizeof(opts));
opts.buffer = (u_char*) addr;
opts.length = size;
opts.offset = off;
opts.quiet = quiet;
ret = nand_read_opts(nand, &opts);
} else {
/* write */
nand_write_options_t opts;
memset(&opts, 0, sizeof(opts));
opts.buffer = (u_char*) addr;
opts.length = size;
opts.offset = off;
/* opts.forcejffs2 = 1; */
opts.pad = 1;
opts.blockalign = 1;
opts.quiet = quiet;
ret = nand_write_opts(nand, &opts);
}
if (!s || !strcmp(s, ".jffs2") ||
!strcmp(s, ".e") || !strcmp(s, ".i")) {
if (read)
ret = nand_read_skip_bad(nand, off, &size,
(u_char *)addr);
else
ret = nand_write_skip_bad(nand, off, &size,
(u_char *)addr);
} else if (s != NULL && !strcmp(s, ".oob")) {
/* read out-of-band data */
/* out-of-band data */
mtd_oob_ops_t ops = {
.oobbuf = (u8 *)addr,
.ooblen = size,
.mode = MTD_OOB_RAW
};
if (read)
ret = nand->read_oob(nand, off, size, &size,
(u_char *) addr);
ret = nand->read_oob(nand, off, &ops);
else
ret = nand->write_oob(nand, off, size, &size,
(u_char *) addr);
ret = nand->write_oob(nand, off, &ops);
} else {
if (read)
ret = nand_read(nand, off, &size, (u_char *)addr);
else
ret = nand_write(nand, off, &size, (u_char *)addr);
printf("Unknown nand command suffix '%s'.\n", s);
return 1;
}
printf(" %d bytes %s: %s\n", size,
@ -381,6 +377,7 @@ int do_nand(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
}
return 1;
}
if (strcmp(cmd, "biterr") == 0) {
/* todo */
return 1;
@ -395,7 +392,12 @@ int do_nand(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
if (!strcmp("status", argv[2]))
status = 1;
}
/*
* ! BROKEN !
*
* TODO: must be implemented and tested by someone with HW
*/
#if 0
if (status) {
ulong block_start = 0;
ulong off;
@ -406,28 +408,28 @@ int do_nand(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
nand_chip->cmdfunc (nand, NAND_CMD_STATUS, -1, -1);
printf("device is %swrite protected\n",
(nand_chip->read_byte(nand) & 0x80 ?
"NOT " : "" ) );
"NOT " : ""));
for (off = 0; off < nand->size; off += nand->oobblock) {
for (off = 0; off < nand->size; off += nand->writesize) {
int s = nand_get_lock_status(nand, off);
/* print message only if status has changed
* or at end of chip
*/
if (off == nand->size - nand->oobblock
if (off == nand->size - nand->writesize
|| (s != last_status && off != 0)) {
printf("%08lx - %08lx: %8lu pages %s%s%s\n",
printf("%08lx - %08lx: %8d pages %s%s%s\n",
block_start,
off-1,
(off-block_start)/nand->oobblock,
(off-block_start)/nand->writesize,
((last_status & NAND_LOCK_STATUS_TIGHT) ? "TIGHT " : ""),
((last_status & NAND_LOCK_STATUS_LOCK) ? "LOCK " : ""),
((last_status & NAND_LOCK_STATUS_UNLOCK) ? "UNLOCK " : ""));
}
last_status = s;
}
}
} else {
if (!nand_lock(nand, tight)) {
puts("NAND flash successfully locked\n");
@ -436,6 +438,7 @@ int do_nand(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
return 1;
}
}
#endif
return 0;
}
@ -443,6 +446,12 @@ int do_nand(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
if (arg_off_size(argc - 2, argv + 2, nand, &off, &size) < 0)
return 1;
/*
* ! BROKEN !
*
* TODO: must be implemented and tested by someone with HW
*/
#if 0
if (!nand_unlock(nand, off, size)) {
puts("NAND flash successfully unlocked\n");
} else {
@ -450,6 +459,7 @@ int do_nand(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
"write and erase will probably fail\n");
return 1;
}
#endif
return 0;
}
@ -459,54 +469,47 @@ usage:
}
U_BOOT_CMD(nand, 5, 1, do_nand,
"nand - NAND sub-system\n",
"info - show available NAND devices\n"
"nand device [dev] - show or set current device\n"
"nand read[.jffs2] - addr off|partition size\n"
"nand write[.jffs2] - addr off|partition size - read/write `size' bytes starting\n"
" at offset `off' to/from memory address `addr'\n"
"nand erase [clean] [off size] - erase `size' bytes from\n"
" offset `off' (entire device if not specified)\n"
"nand bad - show bad blocks\n"
"nand dump[.oob] off - dump page\n"
"nand scrub - really clean NAND erasing bad blocks (UNSAFE)\n"
"nand markbad off - mark bad block at offset (UNSAFE)\n"
"nand biterr off - make a bit error at offset (UNSAFE)\n"
"nand lock [tight] [status] - bring nand to lock state or display locked pages\n"
"nand unlock [offset] [size] - unlock section\n");
"nand - NAND sub-system\n",
"info - show available NAND devices\n"
"nand device [dev] - show or set current device\n"
"nand read - addr off|partition size\n"
"nand write - addr off|partition size\n"
" read/write 'size' bytes starting at offset 'off'\n"
" to/from memory address 'addr', skipping bad blocks.\n"
"nand erase [clean] [off size] - erase 'size' bytes from\n"
" offset 'off' (entire device if not specified)\n"
"nand bad - show bad blocks\n"
"nand dump[.oob] off - dump page\n"
"nand scrub - really clean NAND erasing bad blocks (UNSAFE)\n"
"nand markbad off - mark bad block at offset (UNSAFE)\n"
"nand biterr off - make a bit error at offset (UNSAFE)\n"
"nand lock [tight] [status]\n"
" bring nand to lock state or display locked pages\n"
"nand unlock [offset] [size] - unlock section\n");
static int nand_load_image(cmd_tbl_t *cmdtp, nand_info_t *nand,
ulong offset, ulong addr, char *cmd)
ulong offset, ulong addr, char *cmd)
{
int r;
char *ep, *s;
size_t cnt;
image_header_t *hdr;
int jffs2 = 0;
#if defined(CONFIG_FIT)
const void *fit_hdr = NULL;
#endif
s = strchr(cmd, '.');
if (s != NULL &&
(!strcmp(s, ".jffs2") || !strcmp(s, ".e") || !strcmp(s, ".i")))
jffs2 = 1;
(strcmp(s, ".jffs2") && !strcmp(s, ".e") && !strcmp(s, ".i"))) {
printf("Unknown nand load suffix '%s'\n", s);
show_boot_progress(-53);
return 1;
}
printf("\nLoading from %s, offset 0x%lx\n", nand->name, offset);
cnt = nand->oobblock;
if (jffs2) {
nand_read_options_t opts;
memset(&opts, 0, sizeof(opts));
opts.buffer = (u_char*) addr;
opts.length = cnt;
opts.offset = offset;
opts.quiet = 1;
r = nand_read_opts(nand, &opts);
} else {
r = nand_read(nand, offset, &cnt, (u_char *) addr);
}
cnt = nand->writesize;
r = nand_read(nand, offset, &cnt, (u_char *) addr);
if (r) {
puts("** Read error\n");
show_boot_progress (-56);
@ -536,19 +539,10 @@ static int nand_load_image(cmd_tbl_t *cmdtp, nand_info_t *nand,
puts ("** Unknown image type\n");
return 1;
}
show_boot_progress (57);
if (jffs2) {
nand_read_options_t opts;
memset(&opts, 0, sizeof(opts));
opts.buffer = (u_char*) addr;
opts.length = cnt;
opts.offset = offset;
opts.quiet = 1;
r = nand_read_opts(nand, &opts);
} else {
r = nand_read(nand, offset, &cnt, (u_char *) addr);
}
/* FIXME: skip bad blocks */
r = nand_read(nand, offset, &cnt, (u_char *) addr);
if (r) {
puts("** Read error\n");
show_boot_progress (-58);
@ -614,7 +608,7 @@ int do_nandboot(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
else
addr = CFG_LOAD_ADDR;
return nand_load_image(cmdtp, &nand_info[dev->id->num],
part->offset, addr, argv[0]);
part->offset, addr, argv[0]);
}
}
#endif
@ -669,7 +663,7 @@ usage:
U_BOOT_CMD(nboot, 4, 1, do_nandboot,
"nboot - boot from NAND device\n",
"[.jffs2] [partition] | [[[loadAddr] dev] offset]\n");
"[partition] | [[[loadAddr] dev] offset]\n");
#endif
@ -726,10 +720,10 @@ void archflashwp(void *archdata, int wp);
#define CONFIG_MTD_NAND_ECC_JFFS2
/* bits for nand_legacy_rw() `cmd'; or together as needed */
#define NANDRW_READ 0x01
#define NANDRW_WRITE 0x00
#define NANDRW_JFFS2 0x02
#define NANDRW_JFFS2_SKIP 0x04
#define NANDRW_READ 0x01
#define NANDRW_WRITE 0x00
#define NANDRW_JFFS2 0x02
#define NANDRW_JFFS2_SKIP 0x04
/*
* Imports from nand_legacy.c
@ -839,11 +833,11 @@ int do_nand (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
if (strncmp (argv[1], "read", 4) == 0 ||
strncmp (argv[1], "write", 5) == 0) {
ulong addr = simple_strtoul (argv[2], NULL, 16);
off_t off = simple_strtoul (argv[3], NULL, 16);
size_t size = simple_strtoul (argv[4], NULL, 16);
int cmd = (strncmp (argv[1], "read", 4) == 0) ?
NANDRW_READ : NANDRW_WRITE;
ulong addr = simple_strtoul (argv[2], NULL, 16);
off_t off = simple_strtoul (argv[3], NULL, 16);
size_t size = simple_strtoul (argv[4], NULL, 16);
int cmd = (strncmp (argv[1], "read", 4) == 0) ?
NANDRW_READ : NANDRW_WRITE;
size_t total;
int ret;
char *cmdtail = strchr (argv[1], '.');
@ -892,8 +886,7 @@ int do_nand (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
ret = nand_legacy_rw (nand_dev_desc + curr_device,
cmd, off, size,
&total,
(u_char *) addr);
&total, (u_char *) addr);
printf (" %d bytes %s: %s\n", total,
(cmd & NANDRW_READ) ? "read" : "written",
@ -1000,11 +993,11 @@ int do_nandboot (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
show_boot_progress (55);
printf ("\nLoading from device %d: %s at 0x%lx (offset 0x%lx)\n",
dev, nand_dev_desc[dev].name, nand_dev_desc[dev].IO_ADDR,
offset);
dev, nand_dev_desc[dev].name, nand_dev_desc[dev].IO_ADDR,
offset);
if (nand_legacy_rw (nand_dev_desc + dev, NANDRW_READ, offset,
SECTORSIZE, NULL, (u_char *)addr)) {
SECTORSIZE, NULL, (u_char *)addr)) {
printf ("** Read error on %d\n", dev);
show_boot_progress (-56);
return 1;
@ -1035,8 +1028,8 @@ int do_nandboot (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
show_boot_progress (57);
if (nand_legacy_rw (nand_dev_desc + dev, NANDRW_READ,
offset + SECTORSIZE, cnt, NULL,
(u_char *)(addr+SECTORSIZE))) {
offset + SECTORSIZE, cnt, NULL,
(u_char *)(addr+SECTORSIZE))) {
printf ("** Read error on %d\n", dev);
show_boot_progress (-58);
return 1;

2
common/cmd_onenand.c
View File

@ -38,7 +38,7 @@ int do_onenand(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
onenand_init();
return 0;
}
onenand_print_device_info(onenand_chip.device_id, 1);
printf("%s\n", onenand_mtd.name);
return 0;
default:

215
common/cmd_yaffs2.c Normal file
View File

@ -0,0 +1,215 @@
#include <common.h>
#include <config.h>
#include <command.h>
#ifdef YAFFS2_DEBUG
#define PRINTF(fmt,args...) printf (fmt ,##args)
#else
#define PRINTF(fmt,args...)
#endif
extern void cmd_yaffs_mount(char *mp);
extern void cmd_yaffs_umount(char *mp);
extern void cmd_yaffs_read_file(char *fn);
extern void cmd_yaffs_write_file(char *fn,char bval,int sizeOfFile);
extern void cmd_yaffs_ls(const char *mountpt, int longlist);
extern void cmd_yaffs_mwrite_file(char *fn, char *addr, int size);
extern void cmd_yaffs_mread_file(char *fn, char *addr);
extern void cmd_yaffs_mkdir(const char *dir);
extern void cmd_yaffs_rmdir(const char *dir);
extern void cmd_yaffs_rm(const char *path);
extern void cmd_yaffs_mv(const char *oldPath, const char *newPath);
extern int yaffs_DumpDevStruct(const char *path);
int do_ymount (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
{
char *mtpoint = argv[1];
cmd_yaffs_mount(mtpoint);
return(0);
}
int do_yumount (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
{
char *mtpoint = argv[1];
cmd_yaffs_umount(mtpoint);
return(0);
}
int do_yls (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
{
char *dirname = argv[argc-1];
cmd_yaffs_ls(dirname, (argc>2)?1:0);
return(0);
}
int do_yrd (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
{
char *filename = argv[1];
printf ("Reading file %s ", filename);
cmd_yaffs_read_file(filename);
printf ("done\n");
return(0);
}
int do_ywr (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
{
char *filename = argv[1];
ulong value = simple_strtoul(argv[2], NULL, 16);
ulong numValues = simple_strtoul(argv[3], NULL, 16);
printf ("Writing value (%x) %x times to %s... ", value, numValues, filename);
cmd_yaffs_write_file(filename,value,numValues);
printf ("done\n");
return(0);
}
int do_yrdm (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
{
char *filename = argv[1];
ulong addr = simple_strtoul(argv[2], NULL, 16);
cmd_yaffs_mread_file(filename, (char *)addr);
return(0);
}
int do_ywrm (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
{
char *filename = argv[1];
ulong addr = simple_strtoul(argv[2], NULL, 16);
ulong size = simple_strtoul(argv[3], NULL, 16);
cmd_yaffs_mwrite_file(filename, (char *)addr, size);
return(0);
}
int do_ymkdir (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
{
char *dirname = argv[1];
cmd_yaffs_mkdir(dirname);
return(0);
}
int do_yrmdir (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
{
char *dirname = argv[1];
cmd_yaffs_rmdir(dirname);
return(0);
}
int do_yrm (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
{
char *path = argv[1];
cmd_yaffs_rm(path);
return(0);
}
int do_ymv (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
{
char *oldPath = argv[1];
char *newPath = argv[2];
cmd_yaffs_mv(newPath, oldPath);
return(0);
}
int do_ydump (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
{
char *dirname = argv[1];
if (yaffs_DumpDevStruct(dirname) != 0)
printf("yaffs_DumpDevStruct returning error when dumping path: , %s\n", dirname);
return 0;
}
U_BOOT_CMD(
ymount, 3, 0, do_ymount,
"ymount\t- mount yaffs\n",
"\n"
);
U_BOOT_CMD(
yumount, 3, 0, do_yumount,
"yumount\t- unmount yaffs\n",
"\n"
);
U_BOOT_CMD(
yls, 4, 0, do_yls,
"yls\t- yaffs ls\n",
"[-l] name\n"
);
U_BOOT_CMD(
yrd, 2, 0, do_yrd,
"yrd\t- read file from yaffs\n",
"filename\n"
);
U_BOOT_CMD(
ywr, 4, 0, do_ywr,
"ywr\t- write file to yaffs\n",
"filename value num_vlues\n"
);
U_BOOT_CMD(
yrdm, 3, 0, do_yrdm,
"yrdm\t- read file to memory from yaffs\n",
"filename offset\n"
);
U_BOOT_CMD(
ywrm, 4, 0, do_ywrm,
"ywrm\t- write file from memory to yaffs\n",
"filename offset size\n"
);
U_BOOT_CMD(
ymkdir, 2, 0, do_ymkdir,
"ymkdir\t- YAFFS mkdir\n",
"dirname\n"
);
U_BOOT_CMD(
yrmdir, 2, 0, do_yrmdir,
"yrmdir\t- YAFFS rmdir\n",
"dirname\n"
);
U_BOOT_CMD(
yrm, 2, 0, do_yrm,
"yrm\t- YAFFS rm\n",
"path\n"
);
U_BOOT_CMD(
ymv, 4, 0, do_ymv,
"ymv\t- YAFFS mv\n",
"oldPath newPath\n"
);
U_BOOT_CMD(
ydump, 2, 0, do_ydump,
"ydump\t- YAFFS device struct\n",
"dirname\n"
);

18
common/env_nand.c
View File

@ -159,22 +159,23 @@ int writeenv(size_t offset, u_char *buf)
{
size_t end = offset + CFG_ENV_RANGE;
size_t amount_saved = 0;
size_t blocksize;
size_t blocksize, len;
u_char *char_ptr;
blocksize = nand_info[0].erasesize;
len = min(blocksize, CFG_ENV_SIZE);
while (amount_saved < CFG_ENV_SIZE && offset < end) {
if (nand_block_isbad(&nand_info[0], offset)) {
offset += blocksize;
} else {
char_ptr = &buf[amount_saved];
if (nand_write(&nand_info[0], offset, &blocksize,
if (nand_write(&nand_info[0], offset, &len,
char_ptr))
return 1;
offset += blocksize;
amount_saved += blocksize;
amount_saved += len;
}
}
if (amount_saved != CFG_ENV_SIZE)
@ -261,21 +262,22 @@ int readenv (size_t offset, u_char * buf)
{
size_t end = offset + CFG_ENV_RANGE;
size_t amount_loaded = 0;
size_t blocksize;
size_t blocksize, len;
u_char *char_ptr;
blocksize = nand_info[0].erasesize;
len = min(blocksize, CFG_ENV_SIZE);
while (amount_loaded < CFG_ENV_SIZE && offset < end) {
if (nand_block_isbad(&nand_info[0], offset)) {
offset += blocksize;
} else {
char_ptr = &buf[amount_loaded];
if (nand_read(&nand_info[0], offset, &blocksize, char_ptr))
if (nand_read(&nand_info[0], offset, &len, char_ptr))
return 1;
offset += blocksize;
amount_loaded += blocksize;
amount_loaded += len;
}
}
if (amount_loaded != CFG_ENV_SIZE)
@ -345,12 +347,10 @@ void env_relocate_spec (void)
void env_relocate_spec (void)
{
#if !defined(ENV_IS_EMBEDDED)
size_t total;
int ret;
total = CFG_ENV_SIZE;
ret = readenv(CFG_ENV_OFFSET, (u_char *) env_ptr);
if (ret || total != CFG_ENV_SIZE)
if (ret)
return use_default();
if (crc32(0, env_ptr->data, ENV_SIZE) != env_ptr->crc)

0
cpu/arm926ejs/at91sam9/Makefile → cpu/arm926ejs/at91/Makefile
View File

2
cpu/arm926ejs/at91sam9/config.mk → cpu/arm926ejs/at91/config.mk
View File

@ -1,3 +1,3 @@
PLATFORM_CPPFLAGS += -march=armv5te
PLATFORM_CPPFLAGS += $(call cc-option,-mtune=arm926ejs,)
LDSCRIPT := $(SRCTREE)/cpu/arm926ejs/at91sam9/u-boot.lds
LDSCRIPT := $(SRCTREE)/cpu/arm926ejs/at91/u-boot.lds

0
cpu/arm926ejs/at91sam9/ether.c → cpu/arm926ejs/at91/ether.c
View File

0
cpu/arm926ejs/at91sam9/lowlevel_init.S → cpu/arm926ejs/at91/lowlevel_init.S
View File

0
cpu/arm926ejs/at91sam9/spi.c → cpu/arm926ejs/at91/spi.c
View File

0
cpu/arm926ejs/at91sam9/timer.c → cpu/arm926ejs/at91/timer.c
View File

0
cpu/arm926ejs/at91sam9/u-boot.lds → cpu/arm926ejs/at91/u-boot.lds
View File

0
cpu/arm926ejs/at91sam9/usb.c → cpu/arm926ejs/at91/usb.c
View File

58
cpu/arm926ejs/davinci/nand.c
View File

@ -42,6 +42,7 @@
*/
#include <common.h>
#include <asm/io.h>
#ifdef CFG_USE_NAND
#if !defined(CFG_NAND_LEGACY)
@ -52,23 +53,23 @@
extern struct nand_chip nand_dev_desc[CFG_MAX_NAND_DEVICE];
static void nand_davinci_hwcontrol(struct mtd_info *mtd, int cmd)
static void nand_davinci_hwcontrol(struct mtd_info *mtd, int cmd, unsigned int ctrl)
{
struct nand_chip *this = mtd->priv;
u_int32_t IO_ADDR_W = (u_int32_t)this->IO_ADDR_W;
IO_ADDR_W &= ~(MASK_ALE|MASK_CLE);
switch (cmd) {
case NAND_CTL_SETCLE:
if (ctrl & NAND_CTRL_CHANGE) {
if ( ctrl & NAND_CLE )
IO_ADDR_W |= MASK_CLE;
break;
case NAND_CTL_SETALE:
if ( ctrl & NAND_ALE )
IO_ADDR_W |= MASK_ALE;
break;
this->IO_ADDR_W = (void __iomem *) IO_ADDR_W;
}
this->IO_ADDR_W = (void *)IO_ADDR_W;
if (cmd != NAND_CMD_NONE)
writeb(cmd, this->IO_ADDR_W);
}
/* Set WP on deselect, write enable on select */
@ -88,18 +89,27 @@ static void nand_davinci_select_chip(struct mtd_info *mtd, int chip)
#ifdef CFG_NAND_HW_ECC
#ifdef CFG_NAND_LARGEPAGE
static struct nand_oobinfo davinci_nand_oobinfo = {
static struct nand_ecclayout davinci_nand_ecclayout = {
.useecc = MTD_NANDECC_AUTOPLACE,
.eccbytes = 12,
.eccpos = {8, 9, 10, 24, 25, 26, 40, 41, 42, 56, 57, 58},
.oobfree = { {2, 6}, {12, 12}, {28, 12}, {44, 12}, {60, 4} }
.oobfree = {
{.offset = 2, .length = 6},
{.offset = 12, .length = 12},
{.offset = 28, .length = 12},
{.offset = 44, .length = 12},
{.offset = 60, .length = 4}
}
};
#elif defined(CFG_NAND_SMALLPAGE)
static struct nand_oobinfo davinci_nand_oobinfo = {
static struct nand_ecclayout davinci_nand_ecclayout = {
.useecc = MTD_NANDECC_AUTOPLACE,
.eccbytes = 3,
.eccpos = {0, 1, 2},
.oobfree = { {6, 2}, {8, 8} }
.oobfree = {
{.offset = 6, .length = 2},
{.offset = 8, .length = 8}
}
};
#else
#error "Either CFG_NAND_LARGEPAGE or CFG_NAND_SMALLPAGE must be defined!"
@ -145,7 +155,7 @@ static int nand_davinci_calculate_ecc(struct mtd_info *mtd, const u_char *dat, u
int region, n;
struct nand_chip *this = mtd->priv;
n = (this->eccmode == NAND_ECC_HW12_2048) ? 4 : 1;
n = (this->ecc.size/512);
region = 1;
while (n--) {
@ -281,7 +291,7 @@ static int nand_davinci_correct_data(struct mtd_info *mtd, u_char *dat, u_char *
int block_count = 0, i, rc;
this = mtd->priv;
block_count = (this->eccmode == NAND_ECC_HW12_2048) ? 4 : 1;
block_count = (this->ecc.size/512);
for (i = 0; i < block_count; i++) {
if (memcmp(read_ecc, calc_ecc, 3) != 0) {
rc = nand_davinci_compare_ecc(read_ecc, calc_ecc, dat);
@ -306,7 +316,7 @@ static int nand_davinci_dev_ready(struct mtd_info *mtd)
return(emif_addr->NANDFSR & 0x1);
}
static int nand_davinci_waitfunc(struct mtd_info *mtd, struct nand_chip *this, int state)
static int nand_davinci_waitfunc(struct mtd_info *mtd, struct nand_chip *this)
{
while(!nand_davinci_dev_ready(mtd)) {;}
*NAND_CE0CLE = NAND_STATUS;
@ -362,22 +372,26 @@ int board_nand_init(struct nand_chip *nand)
#endif
#ifdef CFG_NAND_HW_ECC
#ifdef CFG_NAND_LARGEPAGE
nand->eccmode = NAND_ECC_HW12_2048;
nand->ecc.mode = NAND_ECC_HW;
nand->ecc.size = 2048;
nand->ecc.bytes = 12;
#elif defined(CFG_NAND_SMALLPAGE)
nand->eccmode = NAND_ECC_HW3_512;
nand->ecc.mode = NAND_ECC_HW;
nand->ecc.size = 512;
nand->ecc.bytes = 3;
#else
#error "Either CFG_NAND_LARGEPAGE or CFG_NAND_SMALLPAGE must be defined!"
#endif
nand->autooob = &davinci_nand_oobinfo;
nand->calculate_ecc = nand_davinci_calculate_ecc;
nand->correct_data = nand_davinci_correct_data;
nand->enable_hwecc = nand_davinci_enable_hwecc;
nand->ecc.layout = &davinci_nand_ecclayout;
nand->ecc.calculate = nand_davinci_calculate_ecc;
nand->ecc.correct = nand_davinci_correct_data;
nand->ecc.hwctl = nand_davinci_enable_hwecc;
#else
nand->eccmode = NAND_ECC_SOFT;
nand->ecc.mode = NAND_ECC_SOFT;
#endif
/* Set address of hardware control function */
nand->hwcontrol = nand_davinci_hwcontrol;
nand->cmd_ctrl = nand_davinci_hwcontrol;
nand->dev_ready = nand_davinci_dev_ready;
nand->waitfunc = nand_davinci_waitfunc;

112
cpu/mpc83xx/nand_init.c Normal file
View File

@ -0,0 +1,112 @@
/*
* Copyright (C) 2004-2008 Freescale Semiconductor, Inc.
*
* See file CREDITS for list of people who contributed to this
* project.
*
* 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., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#include <common.h>
#include <mpc83xx.h>
DECLARE_GLOBAL_DATA_PTR;
/*
* Breathe some life into the CPU...
*
* Set up the memory map,
* initialize a bunch of registers,
* initialize the UPM's
*/
void cpu_init_f (volatile immap_t * im)
{
int i;
/* Pointer is writable since we allocated a register for it */
gd = (gd_t *) (CFG_INIT_RAM_ADDR + CFG_GBL_DATA_OFFSET);
/* Clear initial global data */
for (i = 0; i < sizeof(gd_t); i++)
((char *)gd)[i] = 0;
/* system performance tweaking */
#ifdef CFG_ACR_PIPE_DEP
/* Arbiter pipeline depth */
im->arbiter.acr = (im->arbiter.acr & ~ACR_PIPE_DEP) |
(CFG_ACR_PIPE_DEP << ACR_PIPE_DEP_SHIFT);
#endif
#ifdef CFG_ACR_RPTCNT
/* Arbiter repeat count */
im->arbiter.acr = (im->arbiter.acr & ~(ACR_RPTCNT)) |
(CFG_ACR_RPTCNT << ACR_RPTCNT_SHIFT);
#endif
#ifdef CFG_SPCR_OPT
/* Optimize transactions between CSB and other devices */
im->sysconf.spcr = (im->sysconf.spcr & ~SPCR_OPT) |
(CFG_SPCR_OPT << SPCR_OPT_SHIFT);
#endif
/* Enable Time Base & Decrimenter (so we will have udelay()) */
im->sysconf.spcr |= SPCR_TBEN;
/* DDR control driver register */
#ifdef CFG_DDRCDR
im->sysconf.ddrcdr = CFG_DDRCDR;
#endif
/* Output buffer impedance register */
#ifdef CFG_OBIR
im->sysconf.obir = CFG_OBIR;
#endif
/*
* Memory Controller:
*/
/* Map banks 0 and 1 to the FLASH banks 0 and 1 at preliminary
* addresses - these have to be modified later when FLASH size
* has been determined
*/
#if defined(CFG_NAND_BR_PRELIM) \
&& defined(CFG_NAND_OR_PRELIM) \
&& defined(CFG_NAND_LBLAWBAR_PRELIM) \
&& defined(CFG_NAND_LBLAWAR_PRELIM)
im->lbus.bank[0].br = CFG_NAND_BR_PRELIM;
im->lbus.bank[0].or = CFG_NAND_OR_PRELIM;
im->sysconf.lblaw[0].bar = CFG_NAND_LBLAWBAR_PRELIM;
im->sysconf.lblaw[0].ar = CFG_NAND_LBLAWAR_PRELIM;
#else
#error CFG_NAND_BR_PRELIM, CFG_NAND_OR_PRELIM, CFG_NAND_LBLAWBAR_PRELIM & CFG_NAND_LBLAWAR_PRELIM must be defined
#endif
}
/*
* Get timebase clock frequency (like cpu_clk in Hz)
*/
unsigned long get_tbclk(void)
{
return (gd->bus_clk + 3L) / 4L;
}
void puts(const char *str)
{
while (*str)
putc(*str++);
}

390
cpu/mpc83xx/start.S
View File

@ -2,7 +2,7 @@
* Copyright (C) 1998 Dan Malek <dmalek@jlc.net>
* Copyright (C) 1999 Magnus Damm <kieraypc01.p.y.kie.era.ericsson.se>
* Copyright (C) 2000, 2001,2002 Wolfgang Denk <wd@denx.de>
* Copyright Freescale Semiconductor, Inc. 2004, 2006. All rights reserved.
* Copyright Freescale Semiconductor, Inc. 2004, 2006, 2008.
*
* See file CREDITS for list of people who contributed to this
* project.
@ -57,6 +57,10 @@
#define MSR_KERNEL (MSR_FP|MSR_ME|MSR_RI)
#endif
#if !defined(CONFIG_NAND_SPL) && !defined(CFG_RAMBOOT)
#define CFG_FLASHBOOT
#endif
/*
* Set up GOT: Global Offset Table
*
@ -64,16 +68,16 @@
*/
START_GOT
GOT_ENTRY(_GOT2_TABLE_)
GOT_ENTRY(_FIXUP_TABLE_)
GOT_ENTRY(__bss_start)
GOT_ENTRY(_end)
#ifndef CONFIG_NAND_SPL
GOT_ENTRY(_FIXUP_TABLE_)
GOT_ENTRY(_start)
GOT_ENTRY(_start_of_vectors)
GOT_ENTRY(_end_of_vectors)
GOT_ENTRY(transfer_to_handler)
GOT_ENTRY(__init_end)
GOT_ENTRY(_end)
GOT_ENTRY(__bss_start)
#endif
END_GOT
/*
@ -165,7 +169,7 @@ boot_warm: /* time t 5 */
bl init_e300_core
#ifndef CFG_RAMBOOT
#ifdef CFG_FLASHBOOT
/* Inflate flash location so it appears everywhere, calculate */
/* the absolute address in final location of the FLASH, jump */
@ -181,7 +185,7 @@ in_flash:
#if 1 /* Remapping flash with LAW0. */
bl remap_flash_by_law0
#endif
#endif /* CFG_RAMBOOT */
#endif /* CFG_FLASHBOOT */
/* setup the bats */
bl setup_bats
@ -239,6 +243,7 @@ in_flash:
/* run 1st part of board init code (in Flash)*/
bl board_init_f
#ifndef CONFIG_NAND_SPL
/*
* Vector Table
*/
@ -428,6 +433,7 @@ int_return:
lwz r1,GPR1(r1)
SYNC
rfi
#endif /* !CONFIG_NAND_SPL */
/*
* This code initialises the E300 processor core
@ -496,27 +502,146 @@ init_e300_core: /* time t 10 */
SYNC
mtspr HID2, r3
/* clear all BAT's */
/*----------------------------------*/
/* Done! */
/*------------------------------*/
blr
xor r0, r0, r0
mtspr DBAT0U, r0
mtspr DBAT0L, r0
mtspr DBAT1U, r0
mtspr DBAT1L, r0
mtspr DBAT2U, r0
mtspr DBAT2L, r0
mtspr DBAT3U, r0
mtspr DBAT3L, r0
mtspr IBAT0U, r0
mtspr IBAT0L, r0
mtspr IBAT1U, r0
mtspr IBAT1L, r0
mtspr IBAT2U, r0
mtspr IBAT2L, r0
mtspr IBAT3U, r0
mtspr IBAT3L, r0
SYNC
/* setup_bats - set them up to some initial state */
.globl setup_bats
setup_bats:
addis r0, r0, 0x0000
/* IBAT 0 */
addis r4, r0, CFG_IBAT0L@h
ori r4, r4, CFG_IBAT0L@l
addis r3, r0, CFG_IBAT0U@h
ori r3, r3, CFG_IBAT0U@l
mtspr IBAT0L, r4
mtspr IBAT0U, r3
/* DBAT 0 */
addis r4, r0, CFG_DBAT0L@h
ori r4, r4, CFG_DBAT0L@l
addis r3, r0, CFG_DBAT0U@h
ori r3, r3, CFG_DBAT0U@l
mtspr DBAT0L, r4
mtspr DBAT0U, r3
/* IBAT 1 */
addis r4, r0, CFG_IBAT1L@h
ori r4, r4, CFG_IBAT1L@l
addis r3, r0, CFG_IBAT1U@h
ori r3, r3, CFG_IBAT1U@l
mtspr IBAT1L, r4
mtspr IBAT1U, r3
/* DBAT 1 */
addis r4, r0, CFG_DBAT1L@h
ori r4, r4, CFG_DBAT1L@l
addis r3, r0, CFG_DBAT1U@h
ori r3, r3, CFG_DBAT1U@l
mtspr DBAT1L, r4
mtspr DBAT1U, r3
/* IBAT 2 */
addis r4, r0, CFG_IBAT2L@h
ori r4, r4, CFG_IBAT2L@l
addis r3, r0, CFG_IBAT2U@h
ori r3, r3, CFG_IBAT2U@l
mtspr IBAT2L, r4
mtspr IBAT2U, r3
/* DBAT 2 */
addis r4, r0, CFG_DBAT2L@h
ori r4, r4, CFG_DBAT2L@l
addis r3, r0, CFG_DBAT2U@h
ori r3, r3, CFG_DBAT2U@l
mtspr DBAT2L, r4
mtspr DBAT2U, r3
/* IBAT 3 */
addis r4, r0, CFG_IBAT3L@h
ori r4, r4, CFG_IBAT3L@l
addis r3, r0, CFG_IBAT3U@h
ori r3, r3, CFG_IBAT3U@l
mtspr IBAT3L, r4
mtspr IBAT3U, r3
/* DBAT 3 */
addis r4, r0, CFG_DBAT3L@h
ori r4, r4, CFG_DBAT3L@l
addis r3, r0, CFG_DBAT3U@h
ori r3, r3, CFG_DBAT3U@l
mtspr DBAT3L, r4
mtspr DBAT3U, r3
#ifdef CONFIG_HIGH_BATS
/* IBAT 4 */
addis r4, r0, CFG_IBAT4L@h
ori r4, r4, CFG_IBAT4L@l
addis r3, r0, CFG_IBAT4U@h
ori r3, r3, CFG_IBAT4U@l
mtspr IBAT4L, r4
mtspr IBAT4U, r3
/* DBAT 4 */
addis r4, r0, CFG_DBAT4L@h
ori r4, r4, CFG_DBAT4L@l
addis r3, r0, CFG_DBAT4U@h
ori r3, r3, CFG_DBAT4U@l
mtspr DBAT4L, r4
mtspr DBAT4U, r3
/* IBAT 5 */
addis r4, r0, CFG_IBAT5L@h
ori r4, r4, CFG_IBAT5L@l
addis r3, r0, CFG_IBAT5U@h
ori r3, r3, CFG_IBAT5U@l
mtspr IBAT5L, r4
mtspr IBAT5U, r3
/* DBAT 5 */
addis r4, r0, CFG_DBAT5L@h
ori r4, r4, CFG_DBAT5L@l
addis r3, r0, CFG_DBAT5U@h
ori r3, r3, CFG_DBAT5U@l
mtspr DBAT5L, r4
mtspr DBAT5U, r3
/* IBAT 6 */
addis r4, r0, CFG_IBAT6L@h
ori r4, r4, CFG_IBAT6L@l
addis r3, r0, CFG_IBAT6U@h
ori r3, r3, CFG_IBAT6U@l
mtspr IBAT6L, r4
mtspr IBAT6U, r3
/* DBAT 6 */
addis r4, r0, CFG_DBAT6L@h
ori r4, r4, CFG_DBAT6L@l
addis r3, r0, CFG_DBAT6U@h
ori r3, r3, CFG_DBAT6U@l
mtspr DBAT6L, r4
mtspr DBAT6U, r3
/* IBAT 7 */
addis r4, r0, CFG_IBAT7L@h
ori r4, r4, CFG_IBAT7L@l
addis r3, r0, CFG_IBAT7U@h
ori r3, r3, CFG_IBAT7U@l
mtspr IBAT7L, r4
mtspr IBAT7U, r3
/* DBAT 7 */
addis r4, r0, CFG_DBAT7L@h
ori r4, r4, CFG_DBAT7L@l
addis r3, r0, CFG_DBAT7U@h
ori r3, r3, CFG_DBAT7U@l
mtspr DBAT7L, r4
mtspr DBAT7U, r3
#endif
isync
/* invalidate all tlb's
*
@ -537,202 +662,6 @@ init_e300_core: /* time t 10 */
* based on code in "flush_tlbs" from arch/ppc/kernel/head.S
*
*/
li r3, 32
mtctr r3
li r3, 0
1: tlbie r3
addi r3, r3, 0x1000
bdnz 1b
SYNC
/* Done! */
/*------------------------------*/
blr
.globl invalidate_bats
invalidate_bats:
/* invalidate BATs */
mtspr IBAT0U, r0
mtspr IBAT1U, r0
mtspr IBAT2U, r0
mtspr IBAT3U, r0
#ifdef CONFIG_HIGH_BATS
mtspr IBAT4U, r0
mtspr IBAT5U, r0
mtspr IBAT6U, r0
mtspr IBAT7U, r0
#endif
isync
mtspr DBAT0U, r0
mtspr DBAT1U, r0
mtspr DBAT2U, r0
mtspr DBAT3U, r0
#ifdef CONFIG_HIGH_BATS
mtspr DBAT4U, r0
mtspr DBAT5U, r0
mtspr DBAT6U, r0
mtspr DBAT7U, r0
#endif
isync
sync
blr
/* setup_bats - set them up to some initial state */
.globl setup_bats
setup_bats:
addis r0, r0, 0x0000
/* IBAT 0 */
addis r4, r0, CFG_IBAT0L@h
ori r4, r4, CFG_IBAT0L@l
addis r3, r0, CFG_IBAT0U@h
ori r3, r3, CFG_IBAT0U@l
mtspr IBAT0L, r4
mtspr IBAT0U, r3
isync
/* DBAT 0 */
addis r4, r0, CFG_DBAT0L@h
ori r4, r4, CFG_DBAT0L@l
addis r3, r0, CFG_DBAT0U@h
ori r3, r3, CFG_DBAT0U@l
mtspr DBAT0L, r4
mtspr DBAT0U, r3
isync
/* IBAT 1 */
addis r4, r0, CFG_IBAT1L@h
ori r4, r4, CFG_IBAT1L@l
addis r3, r0, CFG_IBAT1U@h
ori r3, r3, CFG_IBAT1U@l
mtspr IBAT1L, r4
mtspr IBAT1U, r3
isync
/* DBAT 1 */
addis r4, r0, CFG_DBAT1L@h
ori r4, r4, CFG_DBAT1L@l
addis r3, r0, CFG_DBAT1U@h
ori r3, r3, CFG_DBAT1U@l
mtspr DBAT1L, r4
mtspr DBAT1U, r3
isync
/* IBAT 2 */
addis r4, r0, CFG_IBAT2L@h
ori r4, r4, CFG_IBAT2L@l
addis r3, r0, CFG_IBAT2U@h
ori r3, r3, CFG_IBAT2U@l
mtspr IBAT2L, r4
mtspr IBAT2U, r3
isync
/* DBAT 2 */
addis r4, r0, CFG_DBAT2L@h
ori r4, r4, CFG_DBAT2L@l
addis r3, r0, CFG_DBAT2U@h
ori r3, r3, CFG_DBAT2U@l
mtspr DBAT2L, r4
mtspr DBAT2U, r3
isync
/* IBAT 3 */
addis r4, r0, CFG_IBAT3L@h
ori r4, r4, CFG_IBAT3L@l
addis r3, r0, CFG_IBAT3U@h
ori r3, r3, CFG_IBAT3U@l
mtspr IBAT3L, r4
mtspr IBAT3U, r3
isync
/* DBAT 3 */
addis r4, r0, CFG_DBAT3L@h
ori r4, r4, CFG_DBAT3L@l
addis r3, r0, CFG_DBAT3U@h
ori r3, r3, CFG_DBAT3U@l
mtspr DBAT3L, r4
mtspr DBAT3U, r3
isync
#ifdef CONFIG_HIGH_BATS
/* IBAT 4 */
addis r4, r0, CFG_IBAT4L@h
ori r4, r4, CFG_IBAT4L@l
addis r3, r0, CFG_IBAT4U@h
ori r3, r3, CFG_IBAT4U@l
mtspr IBAT4L, r4
mtspr IBAT4U, r3
isync
/* DBAT 4 */
addis r4, r0, CFG_DBAT4L@h
ori r4, r4, CFG_DBAT4L@l
addis r3, r0, CFG_DBAT4U@h
ori r3, r3, CFG_DBAT4U@l
mtspr DBAT4L, r4
mtspr DBAT4U, r3
isync
/* IBAT 5 */
addis r4, r0, CFG_IBAT5L@h
ori r4, r4, CFG_IBAT5L@l
addis r3, r0, CFG_IBAT5U@h
ori r3, r3, CFG_IBAT5U@l
mtspr IBAT5L, r4
mtspr IBAT5U, r3
isync
/* DBAT 5 */
addis r4, r0, CFG_DBAT5L@h
ori r4, r4, CFG_DBAT5L@l
addis r3, r0, CFG_DBAT5U@h
ori r3, r3, CFG_DBAT5U@l
mtspr DBAT5L, r4
mtspr DBAT5U, r3
isync
/* IBAT 6 */
addis r4, r0, CFG_IBAT6L@h
ori r4, r4, CFG_IBAT6L@l
addis r3, r0, CFG_IBAT6U@h
ori r3, r3, CFG_IBAT6U@l
mtspr IBAT6L, r4
mtspr IBAT6U, r3
isync
/* DBAT 6 */
addis r4, r0, CFG_DBAT6L@h
ori r4, r4, CFG_DBAT6L@l
addis r3, r0, CFG_DBAT6U@h
ori r3, r3, CFG_DBAT6U@l
mtspr DBAT6L, r4
mtspr DBAT6U, r3
isync
/* IBAT 7 */
addis r4, r0, CFG_IBAT7L@h
ori r4, r4, CFG_IBAT7L@l
addis r3, r0, CFG_IBAT7U@h
ori r3, r3, CFG_IBAT7U@l
mtspr IBAT7L, r4
mtspr IBAT7U, r3
isync
/* DBAT 7 */
addis r4, r0, CFG_DBAT7L@h
ori r4, r4, CFG_DBAT7L@l
addis r3, r0, CFG_DBAT7U@h
ori r3, r3, CFG_DBAT7U@l
mtspr DBAT7L, r4
mtspr DBAT7U, r3
isync
#endif
/* Invalidate TLBs.
* -> for (val = 0; val < 0x20000; val+=0x1000)
* -> tlbie(val);
*/
lis r3, 0
lis r5, 2
@ -874,7 +803,7 @@ relocate_code:
mr r3, r5 /* Destination Address */
lis r4, CFG_MONITOR_BASE@h /* Source Address */
ori r4, r4, CFG_MONITOR_BASE@l
lwz r5, GOT(__init_end)
lwz r5, GOT(__bss_start)
sub r5, r5, r4
li r6, CFG_CACHELINE_SIZE /* Cache Line Size */
@ -987,6 +916,7 @@ in_ram:
stw r0,0(r3)
bdnz 1b
#ifndef CONFIG_NAND_SPL
/*
* Now adjust the fixups and the pointers to the fixups
* in case we need to move ourselves again.
@ -1004,6 +934,8 @@ in_ram:
stw r0,0(r4)
bdnz 3b
4:
#endif
clear_bss:
/*
* Now clear BSS segment
@ -1037,6 +969,7 @@ clear_bss:
mr r4, r10 /* Destination Address */
bl board_init_r
#ifndef CONFIG_NAND_SPL
/*
* Copy exception vector code to low memory
*
@ -1119,6 +1052,7 @@ trap_reloc:
stw r0, 4(r7)
blr
#endif /* !CONFIG_NAND_SPL */
#ifdef CFG_INIT_RAM_LOCK
lock_ram_in_cache:
@ -1142,6 +1076,7 @@ lock_ram_in_cache:
sync
blr
#ifndef CONFIG_NAND_SPL
.globl unlock_ram_in_cache
unlock_ram_in_cache:
/* invalidate the INIT_RAM section */
@ -1165,8 +1100,10 @@ unlock_ram_in_cache:
mtspr HID0, r3 /* no invalidate, unlock */
sync
blr
#endif
#endif /* !CONFIG_NAND_SPL */
#endif /* CFG_INIT_RAM_LOCK */
#ifdef CFG_FLASHBOOT
map_flash_by_law1:
/* When booting from ROM (Flash or EPROM), clear the */
/* Address Mask in OR0 so ROM appears everywhere */
@ -1245,3 +1182,4 @@ remap_flash_by_law0:
stw r4, LBLAWBAR1(r3)
stw r4, LBLAWAR1(r3) /* Off LBIU LAW1 */
blr
#endif /* CFG_FLASHBOOT */

112
cpu/ppc4xx/ndfc.c
View File

@ -44,65 +44,39 @@
#include <asm/io.h>
#include <ppc4xx.h>
static u8 hwctl = 0;
/*
* We need to store the info, which chip-select (CS) is used for the
* chip number. For example on Sequoia NAND chip #0 uses
* CS #3.
*/
static int ndfc_cs[NDFC_MAX_BANKS];
static void ndfc_hwcontrol(struct mtd_info *mtdinfo, int cmd)
static void ndfc_hwcontrol(struct mtd_info *mtd, int cmd, unsigned int ctrl)
{
switch (cmd) {
case NAND_CTL_SETCLE:
hwctl |= 0x1;
break;
struct nand_chip *this = mtd->priv;
ulong base = (ulong) this->IO_ADDR_W & 0xffffff00;
case NAND_CTL_CLRCLE:
hwctl &= ~0x1;
break;
if (cmd == NAND_CMD_NONE)
return;
case NAND_CTL_SETALE:
hwctl |= 0x2;
break;
case NAND_CTL_CLRALE:
hwctl &= ~0x2;
break;
}
}
static void ndfc_write_byte(struct mtd_info *mtdinfo, u_char byte)
{
struct nand_chip *this = mtdinfo->priv;
ulong base = (ulong) this->IO_ADDR_W & 0xfffffffc;
if (hwctl & 0x1)
out_8((u8 *)(base + NDFC_CMD), byte);
else if (hwctl & 0x2)
out_8((u8 *)(base + NDFC_ALE), byte);
if (ctrl & NAND_CLE)
out_8((u8 *)(base + NDFC_CMD), cmd & 0xFF);
else
out_8((u8 *)(base + NDFC_DATA), byte);
}
static u_char ndfc_read_byte(struct mtd_info *mtdinfo)
{
struct nand_chip *this = mtdinfo->priv;
ulong base = (ulong) this->IO_ADDR_W & 0xfffffffc;
return (in_8((u8 *)(base + NDFC_DATA)));
out_8((u8 *)(base + NDFC_ALE), cmd & 0xFF);
}
static int ndfc_dev_ready(struct mtd_info *mtdinfo)
{
struct nand_chip *this = mtdinfo->priv;
ulong base = (ulong) this->IO_ADDR_W & 0xfffffffc;
ulong base = (ulong) this->IO_ADDR_W & 0xffffff00;
while (!(in_be32((u32 *)(base + NDFC_STAT)) & NDFC_STAT_IS_READY))
;
return 1;
return (in_be32((u32 *)(base + NDFC_STAT)) & NDFC_STAT_IS_READY);
}
static void ndfc_enable_hwecc(struct mtd_info *mtdinfo, int mode)
{
struct nand_chip *this = mtdinfo->priv;
ulong base = (ulong) this->IO_ADDR_W & 0xfffffffc;
ulong base = (ulong) this->IO_ADDR_W & 0xffffff00;
u32 ccr;
ccr = in_be32((u32 *)(base + NDFC_CCR));
@ -114,7 +88,7 @@ static int ndfc_calculate_ecc(struct mtd_info *mtdinfo,
const u_char *dat, u_char *ecc_code)
{
struct nand_chip *this = mtdinfo->priv;
ulong base = (ulong) this->IO_ADDR_W & 0xfffffffc;
ulong base = (ulong) this->IO_ADDR_W & 0xffffff00;
u32 ecc;
u8 *p = (u8 *)&ecc;
@ -139,7 +113,7 @@ static int ndfc_calculate_ecc(struct mtd_info *mtdinfo,
static void ndfc_read_buf(struct mtd_info *mtdinfo, uint8_t *buf, int len)
{
struct nand_chip *this = mtdinfo->priv;
ulong base = (ulong) this->IO_ADDR_W & 0xfffffffc;
ulong base = (ulong) this->IO_ADDR_W & 0xffffff00;
uint32_t *p = (uint32_t *) buf;
for (;len > 0; len -= 4)
@ -154,7 +128,7 @@ static void ndfc_read_buf(struct mtd_info *mtdinfo, uint8_t *buf, int len)
static void ndfc_write_buf(struct mtd_info *mtdinfo, const uint8_t *buf, int len)
{
struct nand_chip *this = mtdinfo->priv;
ulong base = (ulong) this->IO_ADDR_W & 0xfffffffc;
ulong base = (ulong) this->IO_ADDR_W & 0xffffff00;
uint32_t *p = (uint32_t *) buf;
for (; len > 0; len -= 4)
@ -164,7 +138,7 @@ static void ndfc_write_buf(struct mtd_info *mtdinfo, const uint8_t *buf, int len
static int ndfc_verify_buf(struct mtd_info *mtdinfo, const uint8_t *buf, int len)
{
struct nand_chip *this = mtdinfo->priv;
ulong base = (ulong) this->IO_ADDR_W & 0xfffffffc;
ulong base = (ulong) this->IO_ADDR_W & 0xffffff00;
uint32_t *p = (uint32_t *) buf;
for (; len > 0; len -= 4)
@ -181,29 +155,43 @@ void board_nand_select_device(struct nand_chip *nand, int chip)
* Don't use "chip" to address the NAND device,
* generate the cs from the address where it is encoded.
*/
int cs = (ulong)nand->IO_ADDR_W & 0x00000003;
ulong base = (ulong)nand->IO_ADDR_W & 0xfffffffc;
ulong base = (ulong)nand->IO_ADDR_W & 0xffffff00;
int cs = ndfc_cs[chip];
/* Set NandFlash Core Configuration Register */
/* 1 col x 2 rows */
out_be32((u32 *)(base + NDFC_CCR), 0x00000000 | (cs << 24));
out_be32((u32 *)(base + NDFC_BCFG0 + (cs << 2)), 0x80002222);
}
int board_nand_init(struct nand_chip *nand)
{
int cs = (ulong)nand->IO_ADDR_W & 0x00000003;
ulong base = (ulong)nand->IO_ADDR_W & 0xfffffffc;
ulong base = (ulong)nand->IO_ADDR_W & 0xffffff00;
static int chip = 0;
nand->hwcontrol = ndfc_hwcontrol;
nand->read_byte = ndfc_read_byte;
nand->read_buf = ndfc_read_buf;
nand->write_byte = ndfc_write_byte;
nand->dev_ready = ndfc_dev_ready;
/*
* Save chip-select for this chip #
*/
ndfc_cs[chip] = cs;
nand->eccmode = NAND_ECC_HW3_256;
nand->enable_hwecc = ndfc_enable_hwecc;
nand->calculate_ecc = ndfc_calculate_ecc;
nand->correct_data = nand_correct_data;
/*
* Select required NAND chip in NDFC
*/
board_nand_select_device(nand, chip);
nand->IO_ADDR_R = (void __iomem *)(base + NDFC_DATA);
nand->IO_ADDR_W = (void __iomem *)(base + NDFC_DATA);
nand->cmd_ctrl = ndfc_hwcontrol;
nand->chip_delay = 50;
nand->read_buf = ndfc_read_buf;
nand->dev_ready = ndfc_dev_ready;
nand->ecc.correct = nand_correct_data;
nand->ecc.hwctl = ndfc_enable_hwecc;
nand->ecc.calculate = ndfc_calculate_ecc;
nand->ecc.mode = NAND_ECC_HW;
nand->ecc.size = 256;
nand->ecc.bytes = 3;
#ifndef CONFIG_NAND_SPL
nand->write_buf = ndfc_write_buf;
@ -218,11 +206,7 @@ int board_nand_init(struct nand_chip *nand)
mtebc(pb0ap, CFG_EBC_PB0AP);
#endif
/*
* Select required NAND chip in NDFC
*/
board_nand_select_device(nand, cs);
out_be32((u32 *)(base + NDFC_BCFG0 + (cs << 2)), 0x80002222);
chip++;
return 0;
}

35
doc/README.nand
View File

@ -57,14 +57,9 @@ Commands:
Print information about all of the NAND devices found.
nand read addr ofs|partition size
Read `size' bytes from `ofs' in NAND flash to `addr'. If a page
cannot be read because it is marked bad or an uncorrectable data
error is found the command stops with an error.
nand read.jffs2 addr ofs|partition size
Like `read', but the data for blocks that are marked bad is read as
0xff. This gives a readable JFFS2 image that can be processed by
the JFFS2 commands such as ls and fsload.
Read `size' bytes from `ofs' in NAND flash to `addr'. Blocks that
are marked bad are skipped. If a page cannot be read because an
uncorrectable data error is found, the command stops with an error.
nand read.oob addr ofs|partition size
Read `size' bytes from the out-of-band data area corresponding to
@ -73,17 +68,15 @@ Commands:
for bad blocks or ECC errors.
nand write addr ofs|partition size
Write `size' bytes from `addr' to `ofs' in NAND flash. If a page
cannot be written because it is marked bad or the write fails the
command stops with an error.
Write `size' bytes from `addr' to `ofs' in NAND flash. Blocks that
are marked bad are skipped. If a page cannot be read because an
uncorrectable data error is found, the command stops with an error.
nand write.jffs2 addr ofs|partition size
Like `write', but blocks that are marked bad are skipped and the
data is written to the next block instead. This allows writing
a JFFS2 image, as long as the image is short enough to fit even
after skipping the bad blocks. Compact images, such as those
produced by mkfs.jffs2 should work well, but loading an image copied
from another flash is going to be trouble if there are any bad blocks.
As JFFS2 skips blocks similarly, this allows writing a JFFS2 image,
as long as the image is short enough to fit even after skipping the
bad blocks. Compact images, such as those produced by mkfs.jffs2
should work well, but loading an image copied from another flash is
going to be trouble if there are any bad blocks.
nand write.oob addr ofs|partition size
Write `size' bytes from `addr' to the out-of-band data area
@ -215,12 +208,6 @@ JFFS2 related commands:
using both the new code which is able to skip bad blocks
"nand erase clean" additionally writes JFFS2-cleanmarkers in the oob.
"nand write.jffs2"
like "nand write" but skip found bad eraseblocks
"nand read.jffs2"
like "nand read" but skip found bad eraseblocks
Miscellaneous and testing commands:
"markbad [offset]"
create an artificial bad block (for testing bad block handling)

1
drivers/mtd/nand/Makefile
View File

@ -32,6 +32,7 @@ COBJS-y += nand_ecc.o
COBJS-y += nand_bbt.o
COBJS-y += nand_util.o
COBJS-$(CONFIG_NAND_FSL_ELBC) += fsl_elbc_nand.o
COBJS-y += fsl_upm.o
COBJS := $(COBJS-y)

552
drivers/mtd/nand/diskonchip.c
View File

File diff suppressed because it is too large Load Diff

767
drivers/mtd/nand/fsl_elbc_nand.c Normal file
View File

@ -0,0 +1,767 @@
/* Freescale Enhanced Local Bus Controller FCM NAND driver
*
* Copyright (c) 2006-2008 Freescale Semiconductor
*
* Authors: Nick Spence <nick.spence@freescale.com>,
* Scott Wood <scottwood@freescale.com>
*
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <common.h>
#include <malloc.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/nand.h>
#include <linux/mtd/nand_ecc.h>
#include <asm/io.h>
#include <asm/errno.h>
#ifdef VERBOSE_DEBUG
#define DEBUG_ELBC
#define vdbg(format, arg...) printf("DEBUG: " format, ##arg)
#else
#define vdbg(format, arg...) do {} while (0)
#endif
/* Can't use plain old DEBUG because the linux mtd
* headers define it as a macro.
*/
#ifdef DEBUG_ELBC
#define dbg(format, arg...) printf("DEBUG: " format, ##arg)
#else
#define dbg(format, arg...) do {} while (0)
#endif
#define MAX_BANKS 8
#define ERR_BYTE 0xFF /* Value returned for read bytes when read failed */
#define FCM_TIMEOUT_MSECS 10 /* Maximum number of mSecs to wait for FCM */
#define LTESR_NAND_MASK (LTESR_FCT | LTESR_PAR | LTESR_CC)
struct fsl_elbc_ctrl;
/* mtd information per set */
struct fsl_elbc_mtd {
struct mtd_info mtd;
struct nand_chip chip;
struct fsl_elbc_ctrl *ctrl;
struct device *dev;
int bank; /* Chip select bank number */
u8 __iomem *vbase; /* Chip select base virtual address */
int page_size; /* NAND page size (0=512, 1=2048) */
unsigned int fmr; /* FCM Flash Mode Register value */
};
/* overview of the fsl elbc controller */
struct fsl_elbc_ctrl {
struct nand_hw_control controller;
struct fsl_elbc_mtd *chips[MAX_BANKS];
/* device info */
lbus83xx_t *regs;
u8 __iomem *addr; /* Address of assigned FCM buffer */
unsigned int page; /* Last page written to / read from */
unsigned int read_bytes; /* Number of bytes read during command */
unsigned int column; /* Saved column from SEQIN */
unsigned int index; /* Pointer to next byte to 'read' */
unsigned int status; /* status read from LTESR after last op */
unsigned int mdr; /* UPM/FCM Data Register value */
unsigned int use_mdr; /* Non zero if the MDR is to be set */
unsigned int oob; /* Non zero if operating on OOB data */
uint8_t *oob_poi; /* Place to write ECC after read back */
};
/* These map to the positions used by the FCM hardware ECC generator */
/* Small Page FLASH with FMR[ECCM] = 0 */
static struct nand_ecclayout fsl_elbc_oob_sp_eccm0 = {
.eccbytes = 3,
.eccpos = {6, 7, 8},
.oobfree = { {0, 5}, {9, 7} },
.oobavail = 12,
};
/* Small Page FLASH with FMR[ECCM] = 1 */
static struct nand_ecclayout fsl_elbc_oob_sp_eccm1 = {
.eccbytes = 3,
.eccpos = {8, 9, 10},
.oobfree = { {0, 5}, {6, 2}, {11, 5} },
.oobavail = 12,
};
/* Large Page FLASH with FMR[ECCM] = 0 */
static struct nand_ecclayout fsl_elbc_oob_lp_eccm0 = {
.eccbytes = 12,
.eccpos = {6, 7, 8, 22, 23, 24, 38, 39, 40, 54, 55, 56},
.oobfree = { {1, 5}, {9, 13}, {25, 13}, {41, 13}, {57, 7} },
.oobavail = 48,
};
/* Large Page FLASH with FMR[ECCM] = 1 */
static struct nand_ecclayout fsl_elbc_oob_lp_eccm1 = {
.eccbytes = 12,
.eccpos = {8, 9, 10, 24, 25, 26, 40, 41, 42, 56, 57, 58},
.oobfree = { {1, 7}, {11, 13}, {27, 13}, {43, 13}, {59, 5} },
.oobavail = 48,
};
/*=================================*/
/*
* Set up the FCM hardware block and page address fields, and the fcm
* structure addr field to point to the correct FCM buffer in memory
*/
static void set_addr(struct mtd_info *mtd, int column, int page_addr, int oob)
{
struct nand_chip *chip = mtd->priv;
struct fsl_elbc_mtd *priv = chip->priv;
struct fsl_elbc_ctrl *ctrl = priv->ctrl;
lbus83xx_t *lbc = ctrl->regs;
int buf_num;
ctrl->page = page_addr;
if (priv->page_size) {
out_be32(&lbc->fbar, page_addr >> 6);
out_be32(&lbc->fpar,
((page_addr << FPAR_LP_PI_SHIFT) & FPAR_LP_PI) |
(oob ? FPAR_LP_MS : 0) | column);
buf_num = (page_addr & 1) << 2;
} else {
out_be32(&lbc->fbar, page_addr >> 5);
out_be32(&lbc->fpar,
((page_addr << FPAR_SP_PI_SHIFT) & FPAR_SP_PI) |
(oob ? FPAR_SP_MS : 0) | column);
buf_num = page_addr & 7;
}
ctrl->addr = priv->vbase + buf_num * 1024;
ctrl->index = column;
/* for OOB data point to the second half of the buffer */
if (oob)
ctrl->index += priv->page_size ? 2048 : 512;
vdbg("set_addr: bank=%d, ctrl->addr=0x%p (0x%p), "
"index %x, pes %d ps %d\n",
buf_num, ctrl->addr, priv->vbase, ctrl->index,
chip->phys_erase_shift, chip->page_shift);
}
/*
* execute FCM command and wait for it to complete
*/
static int fsl_elbc_run_command(struct mtd_info *mtd)
{
struct nand_chip *chip = mtd->priv;
struct fsl_elbc_mtd *priv = chip->priv;
struct fsl_elbc_ctrl *ctrl = priv->ctrl;
lbus83xx_t *lbc = ctrl->regs;
long long end_tick;
u32 ltesr;
/* Setup the FMR[OP] to execute without write protection */
out_be32(&lbc->fmr, priv->fmr | 3);
if (ctrl->use_mdr)
out_be32(&lbc->mdr, ctrl->mdr);
vdbg("fsl_elbc_run_command: fmr=%08x fir=%08x fcr=%08x\n",
in_be32(&lbc->fmr), in_be32(&lbc->fir), in_be32(&lbc->fcr));
vdbg("fsl_elbc_run_command: fbar=%08x fpar=%08x "
"fbcr=%08x bank=%d\n",
in_be32(&lbc->fbar), in_be32(&lbc->fpar),
in_be32(&lbc->fbcr), priv->bank);
/* execute special operation */
out_be32(&lbc->lsor, priv->bank);
/* wait for FCM complete flag or timeout */
end_tick = usec2ticks(FCM_TIMEOUT_MSECS * 1000) + get_ticks();
ltesr = 0;
while (end_tick > get_ticks()) {
ltesr = in_be32(&lbc->ltesr);
if (ltesr & LTESR_CC)
break;
}
ctrl->status = ltesr & LTESR_NAND_MASK;
out_be32(&lbc->ltesr, ctrl->status);
out_be32(&lbc->lteatr, 0);
/* store mdr value in case it was needed */
if (ctrl->use_mdr)
ctrl->mdr = in_be32(&lbc->mdr);
ctrl->use_mdr = 0;
vdbg("fsl_elbc_run_command: stat=%08x mdr=%08x fmr=%08x\n",
ctrl->status, ctrl->mdr, in_be32(&lbc->fmr));
/* returns 0 on success otherwise non-zero) */
return ctrl->status == LTESR_CC ? 0 : -EIO;
}
static void fsl_elbc_do_read(struct nand_chip *chip, int oob)
{
struct fsl_elbc_mtd *priv = chip->priv;
struct fsl_elbc_ctrl *ctrl = priv->ctrl;
lbus83xx_t *lbc = ctrl->regs;
if (priv->page_size) {
out_be32(&lbc->fir,
(FIR_OP_CW0 << FIR_OP0_SHIFT) |
(FIR_OP_CA << FIR_OP1_SHIFT) |
(FIR_OP_PA << FIR_OP2_SHIFT) |
(FIR_OP_CW1 << FIR_OP3_SHIFT) |
(FIR_OP_RBW << FIR_OP4_SHIFT));
out_be32(&lbc->fcr, (NAND_CMD_READ0 << FCR_CMD0_SHIFT) |
(NAND_CMD_READSTART << FCR_CMD1_SHIFT));
} else {
out_be32(&lbc->fir,
(FIR_OP_CW0 << FIR_OP0_SHIFT) |
(FIR_OP_CA << FIR_OP1_SHIFT) |
(FIR_OP_PA << FIR_OP2_SHIFT) |
(FIR_OP_RBW << FIR_OP3_SHIFT));
if (oob)
out_be32(&lbc->fcr,
NAND_CMD_READOOB << FCR_CMD0_SHIFT);
else
out_be32(&lbc->fcr, NAND_CMD_READ0 << FCR_CMD0_SHIFT);
}
}
/* cmdfunc send commands to the FCM */
static void fsl_elbc_cmdfunc(struct mtd_info *mtd, unsigned int command,
int column, int page_addr)
{
struct nand_chip *chip = mtd->priv;
struct fsl_elbc_mtd *priv = chip->priv;
struct fsl_elbc_ctrl *ctrl = priv->ctrl;
lbus83xx_t *lbc = ctrl->regs;
ctrl->use_mdr = 0;
/* clear the read buffer */
ctrl->read_bytes = 0;
if (command != NAND_CMD_PAGEPROG)
ctrl->index = 0;
switch (command) {
/* READ0 and READ1 read the entire buffer to use hardware ECC. */
case NAND_CMD_READ1:
column += 256;
/* fall-through */
case NAND_CMD_READ0:
vdbg("fsl_elbc_cmdfunc: NAND_CMD_READ0, page_addr:"
" 0x%x, column: 0x%x.\n", page_addr, column);
out_be32(&lbc->fbcr, 0); /* read entire page to enable ECC */
set_addr(mtd, 0, page_addr, 0);
ctrl->read_bytes = mtd->writesize + mtd->oobsize;
ctrl->index += column;
fsl_elbc_do_read(chip, 0);
fsl_elbc_run_command(mtd);
return;
/* READOOB reads only the OOB because no ECC is performed. */
case NAND_CMD_READOOB:
vdbg("fsl_elbc_cmdfunc: NAND_CMD_READOOB, page_addr:"
" 0x%x, column: 0x%x.\n", page_addr, column);
out_be32(&lbc->fbcr, mtd->oobsize - column);
set_addr(mtd, column, page_addr, 1);
ctrl->read_bytes = mtd->writesize + mtd->oobsize;
fsl_elbc_do_read(chip, 1);
fsl_elbc_run_command(mtd);
return;
/* READID must read all 5 possible bytes while CEB is active */
case NAND_CMD_READID:
vdbg("fsl_elbc_cmdfunc: NAND_CMD_READID.\n");
out_be32(&lbc->fir, (FIR_OP_CW0 << FIR_OP0_SHIFT) |
(FIR_OP_UA << FIR_OP1_SHIFT) |
(FIR_OP_RBW << FIR_OP2_SHIFT));
out_be32(&lbc->fcr, NAND_CMD_READID << FCR_CMD0_SHIFT);
/* 5 bytes for manuf, device and exts */
out_be32(&lbc->fbcr, 5);
ctrl->read_bytes = 5;
ctrl->use_mdr = 1;
ctrl->mdr = 0;
set_addr(mtd, 0, 0, 0);
fsl_elbc_run_command(mtd);
return;
/* ERASE1 stores the block and page address */
case NAND_CMD_ERASE1:
vdbg("fsl_elbc_cmdfunc: NAND_CMD_ERASE1, "
"page_addr: 0x%x.\n", page_addr);
set_addr(mtd, 0, page_addr, 0);
return;
/* ERASE2 uses the block and page address from ERASE1 */
case NAND_CMD_ERASE2:
vdbg("fsl_elbc_cmdfunc: NAND_CMD_ERASE2.\n");
out_be32(&lbc->fir,
(FIR_OP_CW0 << FIR_OP0_SHIFT) |
(FIR_OP_PA << FIR_OP1_SHIFT) |
(FIR_OP_CM1 << FIR_OP2_SHIFT));
out_be32(&lbc->fcr,
(NAND_CMD_ERASE1 << FCR_CMD0_SHIFT) |
(NAND_CMD_ERASE2 << FCR_CMD1_SHIFT));
out_be32(&lbc->fbcr, 0);
ctrl->read_bytes = 0;
fsl_elbc_run_command(mtd);
return;
/* SEQIN sets up the addr buffer and all registers except the length */
case NAND_CMD_SEQIN: {
u32 fcr;
vdbg("fsl_elbc_cmdfunc: NAND_CMD_SEQIN/PAGE_PROG, "
"page_addr: 0x%x, column: 0x%x.\n",
page_addr, column);
ctrl->column = column;
ctrl->oob = 0;
if (priv->page_size) {
fcr = (NAND_CMD_SEQIN << FCR_CMD0_SHIFT) |
(NAND_CMD_PAGEPROG << FCR_CMD1_SHIFT);
out_be32(&lbc->fir,
(FIR_OP_CW0 << FIR_OP0_SHIFT) |
(FIR_OP_CA << FIR_OP1_SHIFT) |
(FIR_OP_PA << FIR_OP2_SHIFT) |
(FIR_OP_WB << FIR_OP3_SHIFT) |
(FIR_OP_CW1 << FIR_OP4_SHIFT));
} else {
fcr = (NAND_CMD_PAGEPROG << FCR_CMD1_SHIFT) |
(NAND_CMD_SEQIN << FCR_CMD2_SHIFT);
out_be32(&lbc->fir,
(FIR_OP_CW0 << FIR_OP0_SHIFT) |
(FIR_OP_CM2 << FIR_OP1_SHIFT) |
(FIR_OP_CA << FIR_OP2_SHIFT) |
(FIR_OP_PA << FIR_OP3_SHIFT) |
(FIR_OP_WB << FIR_OP4_SHIFT) |
(FIR_OP_CW1 << FIR_OP5_SHIFT));
if (column >= mtd->writesize) {
/* OOB area --> READOOB */
column -= mtd->writesize;
fcr |= NAND_CMD_READOOB << FCR_CMD0_SHIFT;
ctrl->oob = 1;
} else if (column < 256) {
/* First 256 bytes --> READ0 */
fcr |= NAND_CMD_READ0 << FCR_CMD0_SHIFT;
} else {
/* Second 256 bytes --> READ1 */
fcr |= NAND_CMD_READ1 << FCR_CMD0_SHIFT;
}
}
out_be32(&lbc->fcr, fcr);
set_addr(mtd, column, page_addr, ctrl->oob);
return;
}
/* PAGEPROG reuses all of the setup from SEQIN and adds the length */
case NAND_CMD_PAGEPROG: {
int full_page;
vdbg("fsl_elbc_cmdfunc: NAND_CMD_PAGEPROG "
"writing %d bytes.\n", ctrl->index);
/* if the write did not start at 0 or is not a full page
* then set the exact length, otherwise use a full page
* write so the HW generates the ECC.
*/
if (ctrl->oob || ctrl->column != 0 ||
ctrl->index != mtd->writesize + mtd->oobsize) {
out_be32(&lbc->fbcr, ctrl->index);
full_page = 0;
} else {
out_be32(&lbc->fbcr, 0);
full_page = 1;
}
fsl_elbc_run_command(mtd);
/* Read back the page in order to fill in the ECC for the
* caller. Is this really needed?
*/
if (full_page && ctrl->oob_poi) {
out_be32(&lbc->fbcr, 3);
set_addr(mtd, 6, page_addr, 1);
ctrl->read_bytes = mtd->writesize + 9;
fsl_elbc_do_read(chip, 1);
fsl_elbc_run_command(mtd);
memcpy_fromio(ctrl->oob_poi + 6,
&ctrl->addr[ctrl->index], 3);
ctrl->index += 3;
}
ctrl->oob_poi = NULL;
return;
}
/* CMD_STATUS must read the status byte while CEB is active */
/* Note - it does not wait for the ready line */
case NAND_CMD_STATUS:
out_be32(&lbc->fir,
(FIR_OP_CM0 << FIR_OP0_SHIFT) |
(FIR_OP_RBW << FIR_OP1_SHIFT));
out_be32(&lbc->fcr, NAND_CMD_STATUS << FCR_CMD0_SHIFT);
out_be32(&lbc->fbcr, 1);
set_addr(mtd, 0, 0, 0);
ctrl->read_bytes = 1;
fsl_elbc_run_command(mtd);
/* The chip always seems to report that it is
* write-protected, even when it is not.
*/
out_8(ctrl->addr, in_8(ctrl->addr) | NAND_STATUS_WP);
return;
/* RESET without waiting for the ready line */
case NAND_CMD_RESET:
dbg("fsl_elbc_cmdfunc: NAND_CMD_RESET.\n");
out_be32(&lbc->fir, FIR_OP_CM0 << FIR_OP0_SHIFT);
out_be32(&lbc->fcr, NAND_CMD_RESET << FCR_CMD0_SHIFT);
fsl_elbc_run_command(mtd);
return;
default:
printf("fsl_elbc_cmdfunc: error, unsupported command 0x%x.\n",
command);
}
}
static void fsl_elbc_select_chip(struct mtd_info *mtd, int chip)
{
/* The hardware does not seem to support multiple
* chips per bank.
*/
}
/*
* Write buf to the FCM Controller Data Buffer
*/
static void fsl_elbc_write_buf(struct mtd_info *mtd, const u8 *buf, int len)
{
struct nand_chip *chip = mtd->priv;
struct fsl_elbc_mtd *priv = chip->priv;
struct fsl_elbc_ctrl *ctrl = priv->ctrl;
unsigned int bufsize = mtd->writesize + mtd->oobsize;
if (len <= 0) {
printf("write_buf of %d bytes", len);
ctrl->status = 0;
return;
}
if ((unsigned int)len > bufsize - ctrl->index) {
printf("write_buf beyond end of buffer "
"(%d requested, %u available)\n",
len, bufsize - ctrl->index);
len = bufsize - ctrl->index;
}
memcpy_toio(&ctrl->addr[ctrl->index], buf, len);
/*
* This is workaround for the weird elbc hangs during nand write,
* Scott Wood says: "...perhaps difference in how long it takes a
* write to make it through the localbus compared to a write to IMMR
* is causing problems, and sync isn't helping for some reason."
* Reading back the last byte helps though.
*/
in_8(&ctrl->addr[ctrl->index] + len - 1);
ctrl->index += len;
}
/*
* read a byte from either the FCM hardware buffer if it has any data left
* otherwise issue a command to read a single byte.
*/
static u8 fsl_elbc_read_byte(struct mtd_info *mtd)
{
struct nand_chip *chip = mtd->priv;
struct fsl_elbc_mtd *priv = chip->priv;
struct fsl_elbc_ctrl *ctrl = priv->ctrl;
/* If there are still bytes in the FCM, then use the next byte. */
if (ctrl->index < ctrl->read_bytes)
return in_8(&ctrl->addr[ctrl->index++]);
printf("read_byte beyond end of buffer\n");
return ERR_BYTE;
}
/*
* Read from the FCM Controller Data Buffer
*/
static void fsl_elbc_read_buf(struct mtd_info *mtd, u8 *buf, int len)
{
struct nand_chip *chip = mtd->priv;
struct fsl_elbc_mtd *priv = chip->priv;
struct fsl_elbc_ctrl *ctrl = priv->ctrl;
int avail;
if (len < 0)
return;
avail = min((unsigned int)len, ctrl->read_bytes - ctrl->index);
memcpy_fromio(buf, &ctrl->addr[ctrl->index], avail);
ctrl->index += avail;
if (len > avail)
printf("read_buf beyond end of buffer "
"(%d requested, %d available)\n",
len, avail);
}
/*
* Verify buffer against the FCM Controller Data Buffer
*/
static int fsl_elbc_verify_buf(struct mtd_info *mtd,
const u_char *buf, int len)
{
struct nand_chip *chip = mtd->priv;
struct fsl_elbc_mtd *priv = chip->priv;
struct fsl_elbc_ctrl *ctrl = priv->ctrl;
int i;
if (len < 0) {
printf("write_buf of %d bytes", len);
return -EINVAL;
}
if ((unsigned int)len > ctrl->read_bytes - ctrl->index) {
printf("verify_buf beyond end of buffer "
"(%d requested, %u available)\n",
len, ctrl->read_bytes - ctrl->index);
ctrl->index = ctrl->read_bytes;
return -EINVAL;
}
for (i = 0; i < len; i++)
if (in_8(&ctrl->addr[ctrl->index + i]) != buf[i])
break;
ctrl->index += len;
return i == len && ctrl->status == LTESR_CC ? 0 : -EIO;
}
/* This function is called after Program and Erase Operations to
* check for success or failure.
*/
static int fsl_elbc_wait(struct mtd_info *mtd, struct nand_chip *chip)
{
struct fsl_elbc_mtd *priv = chip->priv;
struct fsl_elbc_ctrl *ctrl = priv->ctrl;
lbus83xx_t *lbc = ctrl->regs;
if (ctrl->status != LTESR_CC)
return NAND_STATUS_FAIL;
/* Use READ_STATUS command, but wait for the device to be ready */
ctrl->use_mdr = 0;
out_be32(&lbc->fir,
(FIR_OP_CW0 << FIR_OP0_SHIFT) |
(FIR_OP_RBW << FIR_OP1_SHIFT));
out_be32(&lbc->fcr, NAND_CMD_STATUS << FCR_CMD0_SHIFT);
out_be32(&lbc->fbcr, 1);
set_addr(mtd, 0, 0, 0);
ctrl->read_bytes = 1;
fsl_elbc_run_command(mtd);
if (ctrl->status != LTESR_CC)
return NAND_STATUS_FAIL;
/* The chip always seems to report that it is
* write-protected, even when it is not.
*/
out_8(ctrl->addr, in_8(ctrl->addr) | NAND_STATUS_WP);
return fsl_elbc_read_byte(mtd);
}
static int fsl_elbc_read_page(struct mtd_info *mtd,
struct nand_chip *chip,
uint8_t *buf)
{
fsl_elbc_read_buf(mtd, buf, mtd->writesize);
fsl_elbc_read_buf(mtd, chip->oob_poi, mtd->oobsize);
if (fsl_elbc_wait(mtd, chip) & NAND_STATUS_FAIL)
mtd->ecc_stats.failed++;
return 0;
}
/* ECC will be calculated automatically, and errors will be detected in
* waitfunc.
*/
static void fsl_elbc_write_page(struct mtd_info *mtd,
struct nand_chip *chip,
const uint8_t *buf)
{
struct fsl_elbc_mtd *priv = chip->priv;
struct fsl_elbc_ctrl *ctrl = priv->ctrl;
fsl_elbc_write_buf(mtd, buf, mtd->writesize);
fsl_elbc_write_buf(mtd, chip->oob_poi, mtd->oobsize);
ctrl->oob_poi = chip->oob_poi;
}
static struct fsl_elbc_ctrl *elbc_ctrl;
static void fsl_elbc_ctrl_init(void)
{
immap_t *im = (immap_t *)CFG_IMMR;
elbc_ctrl = kzalloc(sizeof(*elbc_ctrl), GFP_KERNEL);
if (!elbc_ctrl)
return;
elbc_ctrl->regs = &im->lbus;
/* clear event registers */
out_be32(&elbc_ctrl->regs->ltesr, LTESR_NAND_MASK);
out_be32(&elbc_ctrl->regs->lteatr, 0);
/* Enable interrupts for any detected events */
out_be32(&elbc_ctrl->regs->lteir, LTESR_NAND_MASK);
elbc_ctrl->read_bytes = 0;
elbc_ctrl->index = 0;
elbc_ctrl->addr = NULL;
}
int board_nand_init(struct nand_chip *nand)
{
struct fsl_elbc_mtd *priv;
uint32_t br, or;
if (!elbc_ctrl) {
fsl_elbc_ctrl_init();
if (!elbc_ctrl)
return -1;
}
priv = kzalloc(sizeof(*priv), GFP_KERNEL);
if (!priv)
return -ENOMEM;
priv->ctrl = elbc_ctrl;
priv->vbase = nand->IO_ADDR_R;
/* Find which chip select it is connected to. It'd be nice
* if we could pass more than one datum to the NAND driver...
*/
for (priv->bank = 0; priv->bank < MAX_BANKS; priv->bank++) {
br = in_be32(&elbc_ctrl->regs->bank[priv->bank].br);
or = in_be32(&elbc_ctrl->regs->bank[priv->bank].or);
if ((br & BR_V) && (br & BR_MSEL) == BR_MS_FCM &&
(br & or & BR_BA) == (phys_addr_t)nand->IO_ADDR_R)
break;
}
if (priv->bank >= MAX_BANKS) {
printf("fsl_elbc_nand: address did not match any "
"chip selects\n");
return -ENODEV;
}
elbc_ctrl->chips[priv->bank] = priv;
/* fill in nand_chip structure */
/* set up function call table */
nand->read_byte = fsl_elbc_read_byte;
nand->write_buf = fsl_elbc_write_buf;
nand->read_buf = fsl_elbc_read_buf;
nand->verify_buf = fsl_elbc_verify_buf;
nand->select_chip = fsl_elbc_select_chip;
nand->cmdfunc = fsl_elbc_cmdfunc;
nand->waitfunc = fsl_elbc_wait;
/* set up nand options */
nand->options = NAND_NO_READRDY | NAND_NO_AUTOINCR;
nand->controller = &elbc_ctrl->controller;
nand->priv = priv;
nand->ecc.read_page = fsl_elbc_read_page;
nand->ecc.write_page = fsl_elbc_write_page;
/* If CS Base Register selects full hardware ECC then use it */
if ((br & BR_DECC) == BR_DECC_CHK_GEN) {
nand->ecc.mode = NAND_ECC_HW;
nand->ecc.layout = (priv->fmr & FMR_ECCM) ?
&fsl_elbc_oob_sp_eccm1 :
&fsl_elbc_oob_sp_eccm0;
nand->ecc.size = 512;
nand->ecc.bytes = 3;
nand->ecc.steps = 1;
} else {
/* otherwise fall back to default software ECC */
nand->ecc.mode = NAND_ECC_SOFT;
}
priv->fmr = (15 << FMR_CWTO_SHIFT) | (2 << FMR_AL_SHIFT);
/* adjust Option Register and ECC to match Flash page size */
if (or & OR_FCM_PGS) {
priv->page_size = 1;
/* adjust ecc setup if needed */
if ((br & BR_DECC) == BR_DECC_CHK_GEN) {
nand->ecc.steps = 4;
nand->ecc.layout = (priv->fmr & FMR_ECCM) ?
&fsl_elbc_oob_lp_eccm1 :
&fsl_elbc_oob_lp_eccm0;
}
}
return 0;
}

66
drivers/mtd/nand/fsl_upm.c
View File

@ -20,8 +20,6 @@
#include <linux/mtd/fsl_upm.h>
#include <nand.h>
static int fsl_upm_in_pattern;
static void fsl_upm_start_pattern(struct fsl_upm *upm, u32 pat_offset)
{
clrsetbits_be32(upm->mxmr, MxMR_MAD_MSK, MxMR_OP_RUNP | pat_offset);
@ -51,49 +49,38 @@ static void fsl_upm_run_pattern(struct fsl_upm *upm, int width, u32 cmd)
}
}
static void nand_hwcontrol (struct mtd_info *mtd, int cmd)
static void fun_cmd_ctrl(struct mtd_info *mtd, int cmd, unsigned int ctrl)
{
struct nand_chip *chip = mtd->priv;
struct fsl_upm_nand *fun = chip->priv;
switch (cmd) {
case NAND_CTL_SETCLE:
fsl_upm_start_pattern(&fun->upm, fun->upm_cmd_offset);
fsl_upm_in_pattern++;
break;
case NAND_CTL_SETALE:
fsl_upm_start_pattern(&fun->upm, fun->upm_addr_offset);
fsl_upm_in_pattern++;
break;
case NAND_CTL_CLRCLE:
case NAND_CTL_CLRALE:
if (!(ctrl & fun->last_ctrl)) {
fsl_upm_end_pattern(&fun->upm);
fsl_upm_in_pattern--;
break;
if (cmd == NAND_CMD_NONE)
return;
fun->last_ctrl = ctrl & (NAND_ALE | NAND_CLE);
}
}
static void nand_write_byte(struct mtd_info *mtd, u_char byte)
{
struct nand_chip *chip = mtd->priv;
if (ctrl & NAND_CTRL_CHANGE) {
if (ctrl & NAND_ALE)
fsl_upm_start_pattern(&fun->upm, fun->upm_addr_offset);
else if (ctrl & NAND_CLE)
fsl_upm_start_pattern(&fun->upm, fun->upm_cmd_offset);
}
if (fsl_upm_in_pattern) {
struct fsl_upm_nand *fun = chip->priv;
fsl_upm_run_pattern(&fun->upm, fun->width, cmd);
fsl_upm_run_pattern(&fun->upm, fun->width, byte);
/*
* Some boards/chips needs this. At least on MPC8360E-RDK we
* need it. Probably weird chip, because I don't see any need
* for this on MPC8555E + Samsung K9F1G08U0A. Usually here are
* 0-2 unexpected busy states per block read.
*/
if (fun->wait_pattern) {
while (!fun->dev_ready())
debug("unexpected busy state\n");
}
} else {
out_8(chip->IO_ADDR_W, byte);
/*
* Some boards/chips needs this. At least on MPC8360E-RDK we
* need it. Probably weird chip, because I don't see any need
* for this on MPC8555E + Samsung K9F1G08U0A. Usually here are
* 0-2 unexpected busy states per block read.
*/
if (fun->wait_pattern) {
while (!fun->dev_ready())
debug("unexpected busy state\n");
}
}
@ -148,13 +135,14 @@ int fsl_upm_nand_init(struct nand_chip *chip, struct fsl_upm_nand *fun)
if (fun->width != 8 && fun->width != 16 && fun->width != 32)
return -ENOSYS;
fun->last_ctrl = NAND_CLE;
chip->priv = fun;
chip->chip_delay = fun->chip_delay;
chip->eccmode = NAND_ECC_SOFT;
chip->hwcontrol = nand_hwcontrol;
chip->ecc.mode = NAND_ECC_SOFT;
chip->cmd_ctrl = fun_cmd_ctrl;
chip->read_byte = nand_read_byte;
chip->read_buf = nand_read_buf;
chip->write_byte = nand_write_byte;
chip->write_buf = nand_write_buf;
chip->verify_buf = nand_verify_buf;
if (fun->dev_ready)

3885
drivers/mtd/nand/nand_base.c
View File

File diff suppressed because it is too large Load Diff

549
drivers/mtd/nand/nand_bbt.c
View File

File diff suppressed because it is too large Load Diff

21
drivers/mtd/nand/nand_ecc.c
View File

@ -7,7 +7,9 @@
* Copyright (C) 2000-2004 Steven J. Hill (sjhill@realitydiluted.com)
* Toshiba America Electronics Components, Inc.
*
* $Id: nand_ecc.c,v 1.14 2004/06/16 15:34:37 gleixner Exp $
* Copyright (C) 2006 Thomas Gleixner <tglx@linutronix.de>
*
* $Id: nand_ecc.c,v 1.15 2005/11/07 11:14:30 gleixner Exp $
*
* This file is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
@ -39,6 +41,14 @@
#if defined(CONFIG_CMD_NAND) && !defined(CFG_NAND_LEGACY)
/* XXX U-BOOT XXX */
#if 0
#include <linux/types.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/mtd/nand_ecc.h>
#endif
#include<linux/mtd/mtd.h>
/*
@ -128,6 +138,10 @@ int nand_calculate_ecc(struct mtd_info *mtd, const u_char *dat,
return 0;
}
/* XXX U-BOOT XXX */
#if 0
EXPORT_SYMBOL(nand_calculate_ecc);
#endif
#endif /* CONFIG_NAND_SPL */
static inline int countbits(uint32_t byte)
@ -197,4 +211,9 @@ int nand_correct_data(struct mtd_info *mtd, u_char *dat,
return -1;
}
/* XXX U-BOOT XXX */
#if 0
EXPORT_SYMBOL(nand_correct_data);
#endif
#endif

89
drivers/mtd/nand/nand_ids.c
View File

@ -2,8 +2,8 @@
* drivers/mtd/nandids.c
*
* Copyright (C) 2002 Thomas Gleixner (tglx@linutronix.de)
*
* $Id: nand_ids.c,v 1.10 2004/05/26 13:40:12 gleixner Exp $
*
* $Id: nand_ids.c,v 1.16 2005/11/07 11:14:31 gleixner Exp $
*
* 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
@ -16,7 +16,6 @@
#if defined(CONFIG_CMD_NAND) && !defined(CFG_NAND_LEGACY)
#include <linux/mtd/nand.h>
/*
* Chip ID list
*
@ -29,13 +28,15 @@
* 512 512 Byte page size
*/
struct nand_flash_dev nand_flash_ids[] = {
#ifdef CONFIG_MTD_NAND_MUSEUM_IDS
{"NAND 1MiB 5V 8-bit", 0x6e, 256, 1, 0x1000, 0},
{"NAND 2MiB 5V 8-bit", 0x64, 256, 2, 0x1000, 0},
{"NAND 4MiB 5V 8-bit", 0x6b, 512, 4, 0x2000, 0},
{"NAND 1MiB 3,3V 8-bit", 0xe8, 256, 1, 0x1000, 0},
{"NAND 1MiB 3,3V 8-bit", 0xec, 256, 1, 0x1000, 0},
{"NAND 2MiB 3,3V 8-bit", 0xea, 256, 2, 0x1000, 0},
{"NAND 4MiB 3,3V 8-bit", 0xd5, 512, 4, 0x2000, 0},
{"NAND 4MiB 3,3V 8-bit", 0xd5, 512, 4, 0x2000, 0},
{"NAND 4MiB 3,3V 8-bit", 0xe3, 512, 4, 0x2000, 0},
{"NAND 4MiB 3,3V 8-bit", 0xe5, 512, 4, 0x2000, 0},
{"NAND 8MiB 3,3V 8-bit", 0xd6, 512, 8, 0x2000, 0},
@ -44,6 +45,7 @@ struct nand_flash_dev nand_flash_ids[] = {
{"NAND 8MiB 3,3V 8-bit", 0xe6, 512, 8, 0x2000, 0},
{"NAND 8MiB 1,8V 16-bit", 0x49, 512, 8, 0x2000, NAND_BUSWIDTH_16},
{"NAND 8MiB 3,3V 16-bit", 0x59, 512, 8, 0x2000, NAND_BUSWIDTH_16},
#endif
{"NAND 16MiB 1,8V 8-bit", 0x33, 512, 16, 0x4000, 0},
{"NAND 16MiB 3,3V 8-bit", 0x73, 512, 16, 0x4000, 0},
@ -61,52 +63,72 @@ struct nand_flash_dev nand_flash_ids[] = {
{"NAND 64MiB 3,3V 16-bit", 0x56, 512, 64, 0x4000, NAND_BUSWIDTH_16},
{"NAND 128MiB 1,8V 8-bit", 0x78, 512, 128, 0x4000, 0},
{"NAND 128MiB 1,8V 8-bit", 0x39, 512, 128, 0x4000, 0},
{"NAND 128MiB 3,3V 8-bit", 0x79, 512, 128, 0x4000, 0},
{"NAND 128MiB 1,8V 16-bit", 0x72, 512, 128, 0x4000, NAND_BUSWIDTH_16},
{"NAND 128MiB 1,8V 16-bit", 0x49, 512, 128, 0x4000, NAND_BUSWIDTH_16},
{"NAND 128MiB 3,3V 16-bit", 0x74, 512, 128, 0x4000, NAND_BUSWIDTH_16},
{"NAND 128MiB 3,3V 16-bit", 0x59, 512, 128, 0x4000, NAND_BUSWIDTH_16},
{"NAND 256MiB 3,3V 8-bit", 0x71, 512, 256, 0x4000, 0},
/* These are the new chips with large page size. The pagesize
* and the erasesize is determined from the extended id bytes
*/
/*
* These are the new chips with large page size. The pagesize and the
* erasesize is determined from the extended id bytes
*/
#define LP_OPTIONS (NAND_SAMSUNG_LP_OPTIONS | NAND_NO_READRDY | NAND_NO_AUTOINCR)
#define LP_OPTIONS16 (LP_OPTIONS | NAND_BUSWIDTH_16)
/*512 Megabit */
{"NAND 64MiB 1,8V 8-bit", 0xA2, 0, 64, 0, LP_OPTIONS},
{"NAND 64MiB 3,3V 8-bit", 0xF2, 0, 64, 0, LP_OPTIONS},
{"NAND 64MiB 1,8V 16-bit", 0xB2, 0, 64, 0, LP_OPTIONS16},
{"NAND 64MiB 3,3V 16-bit", 0xC2, 0, 64, 0, LP_OPTIONS16},
/* 1 Gigabit */
{"NAND 128MiB 1,8V 8-bit", 0xA1, 0, 128, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_NO_AUTOINCR},
{"NAND 128MiB 3,3V 8-bit", 0xF1, 0, 128, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_NO_AUTOINCR},
{"NAND 128MiB 1,8V 16-bit", 0xB1, 0, 128, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_BUSWIDTH_16 | NAND_NO_AUTOINCR},
{"NAND 128MiB 3,3V 16-bit", 0xC1, 0, 128, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_BUSWIDTH_16 | NAND_NO_AUTOINCR},
{"NAND 128MiB 1,8V 8-bit", 0xA1, 0, 128, 0, LP_OPTIONS},
{"NAND 128MiB 3,3V 8-bit", 0xF1, 0, 128, 0, LP_OPTIONS},
{"NAND 128MiB 1,8V 16-bit", 0xB1, 0, 128, 0, LP_OPTIONS16},
{"NAND 128MiB 3,3V 16-bit", 0xC1, 0, 128, 0, LP_OPTIONS16},
/* 2 Gigabit */
{"NAND 256MiB 1,8V 8-bit", 0xAA, 0, 256, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_NO_AUTOINCR},
{"NAND 256MiB 3,3V 8-bit", 0xDA, 0, 256, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_NO_AUTOINCR},
{"NAND 256MiB 1,8V 16-bit", 0xBA, 0, 256, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_BUSWIDTH_16 | NAND_NO_AUTOINCR},
{"NAND 256MiB 3,3V 16-bit", 0xCA, 0, 256, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_BUSWIDTH_16 | NAND_NO_AUTOINCR},
{"NAND 256MiB 1,8V 8-bit", 0xAA, 0, 256, 0, LP_OPTIONS},
{"NAND 256MiB 3,3V 8-bit", 0xDA, 0, 256, 0, LP_OPTIONS},
{"NAND 256MiB 1,8V 16-bit", 0xBA, 0, 256, 0, LP_OPTIONS16},
{"NAND 256MiB 3,3V 16-bit", 0xCA, 0, 256, 0, LP_OPTIONS16},
/* 4 Gigabit */
{"NAND 512MiB 1,8V 8-bit", 0xAC, 0, 512, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_NO_AUTOINCR},
{"NAND 512MiB 3,3V 8-bit", 0xDC, 0, 512, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_NO_AUTOINCR},
{"NAND 512MiB 1,8V 16-bit", 0xBC, 0, 512, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_BUSWIDTH_16 | NAND_NO_AUTOINCR},
{"NAND 512MiB 3,3V 16-bit", 0xCC, 0, 512, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_BUSWIDTH_16 | NAND_NO_AUTOINCR},
{"NAND 512MiB 1,8V 8-bit", 0xAC, 0, 512, 0, LP_OPTIONS},
{"NAND 512MiB 3,3V 8-bit", 0xDC, 0, 512, 0, LP_OPTIONS},
{"NAND 512MiB 1,8V 16-bit", 0xBC, 0, 512, 0, LP_OPTIONS16},
{"NAND 512MiB 3,3V 16-bit", 0xCC, 0, 512, 0, LP_OPTIONS16},
/* 8 Gigabit */
{"NAND 1GiB 1,8V 8-bit", 0xA3, 0, 1024, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_NO_AUTOINCR},
{"NAND 1GiB 3,3V 8-bit", 0xD3, 0, 1024, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_NO_AUTOINCR},
{"NAND 1GiB 1,8V 16-bit", 0xB3, 0, 1024, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_BUSWIDTH_16 | NAND_NO_AUTOINCR},
{"NAND 1GiB 3,3V 16-bit", 0xC3, 0, 1024, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_BUSWIDTH_16 | NAND_NO_AUTOINCR},
{"NAND 1GiB 1,8V 8-bit", 0xA3, 0, 1024, 0, LP_OPTIONS},
{"NAND 1GiB 3,3V 8-bit", 0xD3, 0, 1024, 0, LP_OPTIONS},
{"NAND 1GiB 1,8V 16-bit", 0xB3, 0, 1024, 0, LP_OPTIONS16},
{"NAND 1GiB 3,3V 16-bit", 0xC3, 0, 1024, 0, LP_OPTIONS16},
/* 16 Gigabit */
{"NAND 2GiB 1,8V 8-bit", 0xA5, 0, 2048, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_NO_AUTOINCR},
{"NAND 2GiB 3,3V 8-bit", 0xD5, 0, 2048, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_NO_AUTOINCR},
{"NAND 2GiB 1,8V 16-bit", 0xB5, 0, 2048, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_BUSWIDTH_16 | NAND_NO_AUTOINCR},
{"NAND 2GiB 3,3V 16-bit", 0xC5, 0, 2048, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_BUSWIDTH_16 | NAND_NO_AUTOINCR},
{"NAND 2GiB 1,8V 8-bit", 0xA5, 0, 2048, 0, LP_OPTIONS},
{"NAND 2GiB 3,3V 8-bit", 0xD5, 0, 2048, 0, LP_OPTIONS},
{"NAND 2GiB 1,8V 16-bit", 0xB5, 0, 2048, 0, LP_OPTIONS16},
{"NAND 2GiB 3,3V 16-bit", 0xC5, 0, 2048, 0, LP_OPTIONS16},
/* Renesas AND 1 Gigabit. Those chips do not support extended id and have a strange page/block layout !
* The chosen minimum erasesize is 4 * 2 * 2048 = 16384 Byte, as those chips have an array of 4 page planes
* 1 block = 2 pages, but due to plane arrangement the blocks 0-3 consists of page 0 + 4,1 + 5, 2 + 6, 3 + 7
* Anyway JFFS2 would increase the eraseblock size so we chose a combined one which can be erased in one go
* There are more speed improvements for reads and writes possible, but not implemented now
/*
* Renesas AND 1 Gigabit. Those chips do not support extended id and
* have a strange page/block layout ! The chosen minimum erasesize is
* 4 * 2 * 2048 = 16384 Byte, as those chips have an array of 4 page
* planes 1 block = 2 pages, but due to plane arrangement the blocks
* 0-3 consists of page 0 + 4,1 + 5, 2 + 6, 3 + 7 Anyway JFFS2 would
* increase the eraseblock size so we chose a combined one which can be
* erased in one go There are more speed improvements for reads and
* writes possible, but not implemented now
*/
{"AND 128MiB 3,3V 8-bit", 0x01, 2048, 128, 0x4000, NAND_IS_AND | NAND_NO_AUTOINCR | NAND_4PAGE_ARRAY},
{"AND 128MiB 3,3V 8-bit", 0x01, 2048, 128, 0x4000,
NAND_IS_AND | NAND_NO_AUTOINCR |NAND_NO_READRDY | NAND_4PAGE_ARRAY |
BBT_AUTO_REFRESH
},
{NULL,}
};
@ -121,6 +143,7 @@ struct nand_manufacturers nand_manuf_ids[] = {
{NAND_MFR_NATIONAL, "National"},
{NAND_MFR_RENESAS, "Renesas"},
{NAND_MFR_STMICRO, "ST Micro"},
{NAND_MFR_HYNIX, "Hynix"},
{NAND_MFR_MICRON, "Micron"},
{0x0, "Unknown"}
};

723
drivers/mtd/nand/nand_util.c
View File

@ -39,6 +39,9 @@
#include <malloc.h>
#include <div64.h>
#include <asm/errno.h>
#include <linux/mtd/mtd.h>
#include <nand.h>
#include <jffs2/jffs2.h>
@ -69,71 +72,33 @@ static int nand_block_bad_scrub(struct mtd_info *mtd, loff_t ofs, int getchip)
int nand_erase_opts(nand_info_t *meminfo, const nand_erase_options_t *opts)
{
struct jffs2_unknown_node cleanmarker;
int clmpos = 0;
int clmlen = 8;
erase_info_t erase;
ulong erase_length;
int isNAND;
int bbtest = 1;
int result;
int percent_complete = -1;
int (*nand_block_bad_old)(struct mtd_info *, loff_t, int) = NULL;
const char *mtd_device = meminfo->name;
struct mtd_oob_ops oob_opts;
struct nand_chip *chip = meminfo->priv;
uint8_t buf[64];
memset(buf, 0, sizeof(buf));
memset(&erase, 0, sizeof(erase));
memset(&oob_opts, 0, sizeof(oob_opts));
erase.mtd = meminfo;
erase.len = meminfo->erasesize;
erase.addr = opts->offset;
erase_length = opts->length;
isNAND = meminfo->type == MTD_NANDFLASH ? 1 : 0;
if (opts->jffs2) {
cleanmarker.magic = cpu_to_je16 (JFFS2_MAGIC_BITMASK);
cleanmarker.nodetype = cpu_to_je16 (JFFS2_NODETYPE_CLEANMARKER);
if (isNAND) {
struct nand_oobinfo *oobinfo = &meminfo->oobinfo;
/* check for autoplacement */
if (oobinfo->useecc == MTD_NANDECC_AUTOPLACE) {
/* get the position of the free bytes */
if (!oobinfo->oobfree[0][1]) {
printf(" Eeep. Autoplacement selected "
"and no empty space in oob\n");
return -1;
}
clmpos = oobinfo->oobfree[0][0];
clmlen = oobinfo->oobfree[0][1];
if (clmlen > 8)
clmlen = 8;
} else {
/* legacy mode */
switch (meminfo->oobsize) {
case 8:
clmpos = 6;
clmlen = 2;
break;
case 16:
clmpos = 8;
clmlen = 8;
break;
case 64:
clmpos = 16;
clmlen = 8;
break;
}
}
cleanmarker.totlen = cpu_to_je32(8);
} else {
cleanmarker.totlen =
cpu_to_je32(sizeof(struct jffs2_unknown_node));
}
cleanmarker.hdr_crc = cpu_to_je32(
crc32_no_comp(0, (unsigned char *) &cleanmarker,
sizeof(struct jffs2_unknown_node) - 4));
}
cleanmarker.magic = cpu_to_je16 (JFFS2_MAGIC_BITMASK);
cleanmarker.nodetype = cpu_to_je16 (JFFS2_NODETYPE_CLEANMARKER);
cleanmarker.totlen = cpu_to_je32(8);
cleanmarker.hdr_crc = cpu_to_je32(
crc32_no_comp(0, (unsigned char *) &cleanmarker,
sizeof(struct jffs2_unknown_node) - 4));
/* scrub option allows to erase badblock. To prevent internal
* check from erase() method, set block check method to dummy
@ -194,25 +159,21 @@ int nand_erase_opts(nand_info_t *meminfo, const nand_erase_options_t *opts)
/* format for JFFS2 ? */
if (opts->jffs2) {
/* write cleanmarker */
if (isNAND) {
size_t written;
result = meminfo->write_oob(meminfo,
erase.addr + clmpos,
clmlen,
&written,
(unsigned char *)
&cleanmarker);
if (result != 0) {
printf("\n%s: MTD writeoob failure: %d\n",
mtd_device, result);
continue;
}
} else {
printf("\n%s: this erase routine only supports"
" NAND devices!\n",
mtd_device);
chip->ops.len = chip->ops.ooblen = 64;
chip->ops.datbuf = NULL;
chip->ops.oobbuf = buf;
chip->ops.ooboffs = chip->badblockpos & ~0x01;
result = meminfo->write_oob(meminfo,
erase.addr + meminfo->oobsize,
&chip->ops);
if (result != 0) {
printf("\n%s: MTD writeoob failure: %d\n",
mtd_device, result);
continue;
}
else
printf("%s: MTD writeoob at 0x%08x\n",mtd_device, erase.addr + meminfo->oobsize );
}
if (!opts->quiet) {
@ -232,11 +193,11 @@ int nand_erase_opts(nand_info_t *meminfo, const nand_erase_options_t *opts)
percent_complete = percent;
printf("\rErasing at 0x%x -- %3d%% complete.",
erase.addr, percent);
erase.addr, percent);
if (opts->jffs2 && result == 0)
printf(" Cleanmarker written at 0x%x.",
erase.addr);
printf(" Cleanmarker written at 0x%x.",
erase.addr);
}
}
}
@ -253,6 +214,9 @@ int nand_erase_opts(nand_info_t *meminfo, const nand_erase_options_t *opts)
return 0;
}
/* XXX U-BOOT XXX */
#if 0
#define MAX_PAGE_SIZE 2048
#define MAX_OOB_SIZE 64
@ -263,443 +227,29 @@ static unsigned char data_buf[MAX_PAGE_SIZE];
static unsigned char oob_buf[MAX_OOB_SIZE];
/* OOB layouts to pass into the kernel as default */
static struct nand_oobinfo none_oobinfo = {
static struct nand_ecclayout none_ecclayout = {
.useecc = MTD_NANDECC_OFF,
};
static struct nand_oobinfo jffs2_oobinfo = {
static struct nand_ecclayout jffs2_ecclayout = {
.useecc = MTD_NANDECC_PLACE,
.eccbytes = 6,
.eccpos = { 0, 1, 2, 3, 6, 7 }
};
static struct nand_oobinfo yaffs_oobinfo = {
static struct nand_ecclayout yaffs_ecclayout = {
.useecc = MTD_NANDECC_PLACE,
.eccbytes = 6,
.eccpos = { 8, 9, 10, 13, 14, 15}
};
static struct nand_oobinfo autoplace_oobinfo = {
static struct nand_ecclayout autoplace_ecclayout = {
.useecc = MTD_NANDECC_AUTOPLACE
};
#endif
/**
* nand_write_opts: - write image to NAND flash with support for various options
*
* @param meminfo NAND device to erase
* @param opts write options (@see nand_write_options)
* @return 0 in case of success
*
* This code is ported from nandwrite.c from Linux mtd utils by
* Steven J. Hill and Thomas Gleixner.
*/
int nand_write_opts(nand_info_t *meminfo, const nand_write_options_t *opts)
{
int imglen = 0;
int pagelen;
int baderaseblock;
int blockstart = -1;
loff_t offs;
int readlen;
int oobinfochanged = 0;
int percent_complete = -1;
struct nand_oobinfo old_oobinfo;
ulong mtdoffset = opts->offset;
ulong erasesize_blockalign;
u_char *buffer = opts->buffer;
size_t written;
int result;
if (opts->pad && opts->writeoob) {
printf("Can't pad when oob data is present.\n");
return -1;
}
/* set erasesize to specified number of blocks - to match
* jffs2 (virtual) block size */
if (opts->blockalign == 0) {
erasesize_blockalign = meminfo->erasesize;
} else {
erasesize_blockalign = meminfo->erasesize * opts->blockalign;
}
/* make sure device page sizes are valid */
if (!(meminfo->oobsize == 16 && meminfo->oobblock == 512)
&& !(meminfo->oobsize == 8 && meminfo->oobblock == 256)
&& !(meminfo->oobsize == 64 && meminfo->oobblock == 2048)) {
printf("Unknown flash (not normal NAND)\n");
return -1;
}
/* read the current oob info */
memcpy(&old_oobinfo, &meminfo->oobinfo, sizeof(old_oobinfo));
/* write without ecc? */
if (opts->noecc) {
memcpy(&meminfo->oobinfo, &none_oobinfo,
sizeof(meminfo->oobinfo));
oobinfochanged = 1;
}
/* autoplace ECC? */
if (opts->autoplace && (old_oobinfo.useecc != MTD_NANDECC_AUTOPLACE)) {
memcpy(&meminfo->oobinfo, &autoplace_oobinfo,
sizeof(meminfo->oobinfo));
oobinfochanged = 1;
}
/* force OOB layout for jffs2 or yaffs? */
if (opts->forcejffs2 || opts->forceyaffs) {
struct nand_oobinfo *oobsel =
opts->forcejffs2 ? &jffs2_oobinfo : &yaffs_oobinfo;
if (meminfo->oobsize == 8) {
if (opts->forceyaffs) {
printf("YAFSS cannot operate on "
"256 Byte page size\n");
goto restoreoob;
}
/* Adjust number of ecc bytes */
jffs2_oobinfo.eccbytes = 3;
}
memcpy(&meminfo->oobinfo, oobsel, sizeof(meminfo->oobinfo));
}
/* get image length */
imglen = opts->length;
pagelen = meminfo->oobblock
+ ((opts->writeoob != 0) ? meminfo->oobsize : 0);
/* check, if file is pagealigned */
if ((!opts->pad) && ((imglen % pagelen) != 0)) {
printf("Input block length is not page aligned\n");
goto restoreoob;
}
/* check, if length fits into device */
if (((imglen / pagelen) * meminfo->oobblock)
> (meminfo->size - opts->offset)) {
printf("Image %d bytes, NAND page %d bytes, "
"OOB area %u bytes, device size %u bytes\n",
imglen, pagelen, meminfo->oobblock, meminfo->size);
printf("Input block does not fit into device\n");
goto restoreoob;
}
if (!opts->quiet)
printf("\n");
/* get data from input and write to the device */
while (imglen && (mtdoffset < meminfo->size)) {
WATCHDOG_RESET ();
/*
* new eraseblock, check for bad block(s). Stay in the
* loop to be sure if the offset changes because of
* a bad block, that the next block that will be
* written to is also checked. Thus avoiding errors if
* the block(s) after the skipped block(s) is also bad
* (number of blocks depending on the blockalign
*/
while (blockstart != (mtdoffset & (~erasesize_blockalign+1))) {
blockstart = mtdoffset & (~erasesize_blockalign+1);
offs = blockstart;
baderaseblock = 0;
/* check all the blocks in an erase block for
* bad blocks */
do {
int ret = meminfo->block_isbad(meminfo, offs);
if (ret < 0) {
printf("Bad block check failed\n");
goto restoreoob;
}
if (ret == 1) {
baderaseblock = 1;
if (!opts->quiet)
printf("\rBad block at 0x%lx "
"in erase block from "
"0x%x will be skipped\n",
(long) offs,
blockstart);
}
if (baderaseblock) {
mtdoffset = blockstart
+ erasesize_blockalign;
}
offs += erasesize_blockalign
/ opts->blockalign;
} while (offs < blockstart + erasesize_blockalign);
}
readlen = meminfo->oobblock;
if (opts->pad && (imglen < readlen)) {
readlen = imglen;
memset(data_buf + readlen, 0xff,
meminfo->oobblock - readlen);
}
/* read page data from input memory buffer */
memcpy(data_buf, buffer, readlen);
buffer += readlen;
if (opts->writeoob) {
/* read OOB data from input memory block, exit
* on failure */
memcpy(oob_buf, buffer, meminfo->oobsize);
buffer += meminfo->oobsize;
/* write OOB data first, as ecc will be placed
* in there*/
result = meminfo->write_oob(meminfo,
mtdoffset,
meminfo->oobsize,
&written,
(unsigned char *)
&oob_buf);
if (result != 0) {
printf("\nMTD writeoob failure: %d\n",
result);
goto restoreoob;
}
imglen -= meminfo->oobsize;
}
/* write out the page data */
result = meminfo->write(meminfo,
mtdoffset,
meminfo->oobblock,
&written,
(unsigned char *) &data_buf);
if (result != 0) {
printf("writing NAND page at offset 0x%lx failed\n",
mtdoffset);
goto restoreoob;
}
imglen -= readlen;
if (!opts->quiet) {
unsigned long long n = (unsigned long long)
(opts->length-imglen) * 100;
int percent;
do_div(n, opts->length);
percent = (int)n;
/* output progress message only at whole percent
* steps to reduce the number of messages printed
* on (slow) serial consoles
*/
if (percent != percent_complete) {
printf("\rWriting data at 0x%lx "
"-- %3d%% complete.",
mtdoffset, percent);
percent_complete = percent;
}
}
mtdoffset += meminfo->oobblock;
}
if (!opts->quiet)
printf("\n");
restoreoob:
if (oobinfochanged) {
memcpy(&meminfo->oobinfo, &old_oobinfo,
sizeof(meminfo->oobinfo));
}
if (imglen > 0) {
printf("Data did not fit into device, due to bad blocks\n");
return -1;
}
/* return happy */
return 0;
}
/**
* nand_read_opts: - read image from NAND flash with support for various options
*
* @param meminfo NAND device to erase
* @param opts read options (@see struct nand_read_options)
* @return 0 in case of success
*
*/
int nand_read_opts(nand_info_t *meminfo, const nand_read_options_t *opts)
{
int imglen = opts->length;
int pagelen;
int baderaseblock;
int blockstart = -1;
int percent_complete = -1;
loff_t offs;
size_t readlen;
ulong mtdoffset = opts->offset;
u_char *buffer = opts->buffer;
int result;
/* make sure device page sizes are valid */
if (!(meminfo->oobsize == 16 && meminfo->oobblock == 512)
&& !(meminfo->oobsize == 8 && meminfo->oobblock == 256)
&& !(meminfo->oobsize == 64 && meminfo->oobblock == 2048)) {
printf("Unknown flash (not normal NAND)\n");
return -1;
}
pagelen = meminfo->oobblock
+ ((opts->readoob != 0) ? meminfo->oobsize : 0);
/* check, if length is not larger than device */
if (((imglen / pagelen) * meminfo->oobblock)
> (meminfo->size - opts->offset)) {
printf("Image %d bytes, NAND page %d bytes, "
"OOB area %u bytes, device size %u bytes\n",
imglen, pagelen, meminfo->oobblock, meminfo->size);
printf("Input block is larger than device\n");
return -1;
}
if (!opts->quiet)
printf("\n");
/* get data from input and write to the device */
while (imglen && (mtdoffset < meminfo->size)) {
WATCHDOG_RESET ();
/*
* new eraseblock, check for bad block(s). Stay in the
* loop to be sure if the offset changes because of
* a bad block, that the next block that will be
* written to is also checked. Thus avoiding errors if
* the block(s) after the skipped block(s) is also bad
* (number of blocks depending on the blockalign
*/
while (blockstart != (mtdoffset & (~meminfo->erasesize+1))) {
blockstart = mtdoffset & (~meminfo->erasesize+1);
offs = blockstart;
baderaseblock = 0;
/* check all the blocks in an erase block for
* bad blocks */
do {
int ret = meminfo->block_isbad(meminfo, offs);
if (ret < 0) {
printf("Bad block check failed\n");
return -1;
}
if (ret == 1) {
baderaseblock = 1;
if (!opts->quiet)
printf("\rBad block at 0x%lx "
"in erase block from "
"0x%x will be skipped\n",
(long) offs,
blockstart);
}
if (baderaseblock) {
mtdoffset = blockstart
+ meminfo->erasesize;
}
offs += meminfo->erasesize;
} while (offs < blockstart + meminfo->erasesize);
}
/* read page data to memory buffer */
result = meminfo->read(meminfo,
mtdoffset,
meminfo->oobblock,
&readlen,
(unsigned char *) &data_buf);
if (result != 0) {
printf("reading NAND page at offset 0x%lx failed\n",
mtdoffset);
return -1;
}
if (imglen < readlen) {
readlen = imglen;
}
memcpy(buffer, data_buf, readlen);
buffer += readlen;
imglen -= readlen;
if (opts->readoob) {
result = meminfo->read_oob(meminfo,
mtdoffset,
meminfo->oobsize,
&readlen,
(unsigned char *)
&oob_buf);
if (result != 0) {
printf("\nMTD readoob failure: %d\n",
result);
return -1;
}
if (imglen < readlen) {
readlen = imglen;
}
memcpy(buffer, oob_buf, readlen);
buffer += readlen;
imglen -= readlen;
}
if (!opts->quiet) {
unsigned long long n = (unsigned long long)
(opts->length-imglen) * 100;
int percent;
do_div(n, opts->length);
percent = (int)n;
/* output progress message only at whole percent
* steps to reduce the number of messages printed
* on (slow) serial consoles
*/
if (percent != percent_complete) {
if (!opts->quiet)
printf("\rReading data from 0x%lx "
"-- %3d%% complete.",
mtdoffset, percent);
percent_complete = percent;
}
}
mtdoffset += meminfo->oobblock;
}
if (!opts->quiet)
printf("\n");
if (imglen > 0) {
printf("Could not read entire image due to bad blocks\n");
return -1;
}
/* return happy */
return 0;
}
/* XXX U-BOOT XXX */
#if 0
/******************************************************************************
* Support for locking / unlocking operations of some NAND devices
*****************************************************************************/
@ -784,7 +334,7 @@ int nand_get_lock_status(nand_info_t *meminfo, ulong offset)
this->select_chip(meminfo, chipnr);
if ((offset & (meminfo->oobblock - 1)) != 0) {
if ((offset & (meminfo->writesize - 1)) != 0) {
printf ("nand_get_lock_status: "
"Start address must be beginning of "
"nand page!\n");
@ -813,7 +363,7 @@ int nand_get_lock_status(nand_info_t *meminfo, ulong offset)
* @param meminfo nand mtd instance
* @param start start byte address
* @param length number of bytes to unlock (must be a multiple of
* page size nand->oobblock)
* page size nand->writesize)
*
* @return 0 on success, -1 in case of error
*/
@ -839,14 +389,14 @@ int nand_unlock(nand_info_t *meminfo, ulong start, ulong length)
goto out;
}
if ((start & (meminfo->oobblock - 1)) != 0) {
if ((start & (meminfo->writesize - 1)) != 0) {
printf ("nand_unlock: Start address must be beginning of "
"nand page!\n");
ret = -1;
goto out;
}
if (length == 0 || (length & (meminfo->oobblock - 1)) != 0) {
if (length == 0 || (length & (meminfo->writesize - 1)) != 0) {
printf ("nand_unlock: Length must be a multiple of nand page "
"size!\n");
ret = -1;
@ -875,5 +425,186 @@ int nand_unlock(nand_info_t *meminfo, ulong start, ulong length)
this->select_chip(meminfo, -1);
return ret;
}
#endif
/**
* get_len_incl_bad
*
* Check if length including bad blocks fits into device.
*
* @param nand NAND device
* @param offset offset in flash
* @param length image length
* @return image length including bad blocks
*/
static size_t get_len_incl_bad (nand_info_t *nand, size_t offset,
const size_t length)
{
size_t len_incl_bad = 0;
size_t len_excl_bad = 0;
size_t block_len;
while (len_excl_bad < length) {
block_len = nand->erasesize - (offset & (nand->erasesize - 1));
if (!nand_block_isbad (nand, offset & ~(nand->erasesize - 1)))
len_excl_bad += block_len;
len_incl_bad += block_len;
offset += block_len;
if ((offset + len_incl_bad) >= nand->size)
break;
}
return len_incl_bad;
}
/**
* nand_write_skip_bad:
*
* Write image to NAND flash.
* Blocks that are marked bad are skipped and the is written to the next
* block instead as long as the image is short enough to fit even after
* skipping the bad blocks.
*
* @param nand NAND device
* @param offset offset in flash
* @param length buffer length
* @param buf buffer to read from
* @return 0 in case of success
*/
int nand_write_skip_bad(nand_info_t *nand, size_t offset, size_t *length,
u_char *buffer)
{
int rval;
size_t left_to_write = *length;
size_t len_incl_bad;
u_char *p_buffer = buffer;
/* Reject writes, which are not page aligned */
if ((offset & (nand->writesize - 1)) != 0 ||
(*length & (nand->writesize - 1)) != 0) {
printf ("Attempt to write non page aligned data\n");
return -EINVAL;
}
len_incl_bad = get_len_incl_bad (nand, offset, *length);
if ((offset + len_incl_bad) >= nand->size) {
printf ("Attempt to write outside the flash area\n");
return -EINVAL;
}
if (len_incl_bad == *length) {
rval = nand_write (nand, offset, length, buffer);
if (rval != 0) {
printf ("NAND write to offset %x failed %d\n",
offset, rval);
return rval;
}
}
while (left_to_write > 0) {
size_t block_offset = offset & (nand->erasesize - 1);
size_t write_size;
if (nand_block_isbad (nand, offset & ~(nand->erasesize - 1))) {
printf ("Skip bad block 0x%08x\n",
offset & ~(nand->erasesize - 1));
offset += nand->erasesize - block_offset;
continue;
}
if (left_to_write < (nand->erasesize - block_offset))
write_size = left_to_write;
else
write_size = nand->erasesize - block_offset;
rval = nand_write (nand, offset, &write_size, p_buffer);
if (rval != 0) {
printf ("NAND write to offset %x failed %d\n",
offset, rval);
*length -= left_to_write;
return rval;
}
left_to_write -= write_size;
offset += write_size;
p_buffer += write_size;
}
return 0;
}
/**
* nand_read_skip_bad:
*
* Read image from NAND flash.
* Blocks that are marked bad are skipped and the next block is readen
* instead as long as the image is short enough to fit even after skipping the
* bad blocks.
*
* @param nand NAND device
* @param offset offset in flash
* @param length buffer length, on return holds remaining bytes to read
* @param buffer buffer to write to
* @return 0 in case of success
*/
int nand_read_skip_bad(nand_info_t *nand, size_t offset, size_t *length,
u_char *buffer)
{
int rval;
size_t left_to_read = *length;
size_t len_incl_bad;
u_char *p_buffer = buffer;
len_incl_bad = get_len_incl_bad (nand, offset, *length);
if ((offset + len_incl_bad) >= nand->size) {
printf ("Attempt to read outside the flash area\n");
return -EINVAL;
}
if (len_incl_bad == *length) {
rval = nand_read (nand, offset, length, buffer);
if (rval != 0) {
printf ("NAND read from offset %x failed %d\n",
offset, rval);
return rval;
}
}
while (left_to_read > 0) {
size_t block_offset = offset & (nand->erasesize - 1);
size_t read_length;
if (nand_block_isbad (nand, offset & ~(nand->erasesize - 1))) {
printf ("Skipping bad block 0x%08x\n",
offset & ~(nand->erasesize - 1));
offset += nand->erasesize - block_offset;
continue;
}
if (left_to_read < (nand->erasesize - block_offset))
read_length = left_to_read;
else
read_length = nand->erasesize - block_offset;
rval = nand_read (nand, offset, &read_length, p_buffer);
if (rval != 0) {
printf ("NAND read from offset %x failed %d\n",
offset, rval);
*length -= left_to_read;
return rval;
}
left_to_read -= read_length;
offset += read_length;
p_buffer += read_length;
}
return 0;
}
#endif /* defined(CONFIG_CMD_NAND) && !defined(CFG_NAND_LEGACY) */

24
drivers/mtd/onenand/onenand_base.c
View File

@ -19,6 +19,7 @@
#include <asm/io.h>
#include <asm/errno.h>
#include <malloc.h>
/* It should access 16-bit instead of 8-bit */
static inline void *memcpy_16(void *dst, const void *src, unsigned int len)
@ -1110,21 +1111,21 @@ int onenand_unlock(struct mtd_info *mtd, loff_t ofs, size_t len)
*
* Print device ID
*/
void onenand_print_device_info(int device, int verbose)
char * onenand_print_device_info(int device)
{
int vcc, demuxed, ddp, density;
if (!verbose)
return;
char *dev_info = malloc(80);
vcc = device & ONENAND_DEVICE_VCC_MASK;
demuxed = device & ONENAND_DEVICE_IS_DEMUX;
ddp = device & ONENAND_DEVICE_IS_DDP;
density = device >> ONENAND_DEVICE_DENSITY_SHIFT;
printk(KERN_INFO "%sOneNAND%s %dMB %sV 16-bit (0x%02x)\n",
sprintf(dev_info, "%sOneNAND%s %dMB %sV 16-bit (0x%02x)",
demuxed ? "" : "Muxed ",
ddp ? "(DDP)" : "",
(16 << density), vcc ? "2.65/3.3" : "1.8", device);
return dev_info;
}
static const struct onenand_manufacturers onenand_manuf_ids[] = {
@ -1203,7 +1204,7 @@ static int onenand_probe(struct mtd_info *mtd)
}
/* Flash device information */
onenand_print_device_info(dev_id, 0);
mtd->name = onenand_print_device_info(dev_id);
this->device_id = dev_id;
density = dev_id >> ONENAND_DEVICE_DENSITY_SHIFT;
@ -1239,6 +1240,17 @@ static int onenand_probe(struct mtd_info *mtd)
this->options |= ONENAND_CONT_LOCK;
}
mtd->erase = onenand_erase;
mtd->read = onenand_read;
mtd->write = onenand_write;
mtd->read_ecc = onenand_read_ecc;
mtd->write_ecc = onenand_write_ecc;
mtd->read_oob = onenand_read_oob;
mtd->write_oob = onenand_write_oob;
mtd->sync = onenand_sync;
mtd->block_isbad = onenand_block_isbad;
mtd->block_markbad = onenand_block_markbad;
return 0;
}

2
fs/Makefile
View File

@ -22,7 +22,7 @@
#
#
SUBDIRS := jffs2 cramfs fdos fat reiserfs ext2
SUBDIRS := jffs2 cramfs fdos fat reiserfs ext2 yaffs2
$(obj).depend all:
@for dir in $(SUBDIRS) ; do \

56
fs/yaffs2/Makefile Normal file
View File

@ -0,0 +1,56 @@
# Makefile for YAFFS direct test
#
#
# YAFFS: Yet another Flash File System. A NAND-flash specific file system.
#
# Copyright (C) 2003 Aleph One Ltd.
#
#
# Created by Charles Manning <charles@aleph1.co.uk>
#
# 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.
#
# NB Warning this Makefile does not include header dependencies.
#
# $Id: Makefile,v 1.15 2007/07/18 19:40:38 charles Exp $
#EXTRA_COMPILE_FLAGS = -DYAFFS_IGNORE_TAGS_ECC
include $(TOPDIR)/config.mk
LIB = $(obj)libyaffs2.a
COBJS-$(CONFIG_YAFFS2) := \
yaffscfg.o yaffs_ecc.o yaffsfs.o yaffs_guts.o yaffs_packedtags1.o \
yaffs_tagscompat.o yaffs_packedtags2.o yaffs_tagsvalidity.o \
yaffs_nand.o yaffs_checkptrw.o yaffs_qsort.o yaffs_mtdif.o \
yaffs_mtdif2.o
SRCS := $(COBJS-y:.o=.c)
OBJS := $(addprefix $(obj),$(COBJS-y))
# -DCONFIG_YAFFS_NO_YAFFS1
CFLAGS += -DCONFIG_YAFFS_DIRECT -DCONFIG_YAFFS_SHORT_NAMES_IN_RAM -DCONFIG_YAFFS_YAFFS2 -DNO_Y_INLINE -DLINUX_VERSION_CODE=0x20622
all: $(LIB)
$(LIB): $(obj).depend $(OBJS)
$(AR) $(ARFLAGS) $@ $(OBJS)
.PHONY: clean distclean
clean:
rm -f $(OBJS)
distclean: clean
rm -f $(LIB) core *.bak .depend
#########################################################################
# defines $(obj).depend target
include $(SRCTREE)/rules.mk
sinclude $(obj).depend
#########################################################################

201
fs/yaffs2/README-linux Normal file
View File

@ -0,0 +1,201 @@
Welcome to YAFFS, the first file system developed specifically for NAND flash.
It is now YAFFS2 - original YAFFS (AYFFS1) only supports 512-byte page
NAND and is now deprectated. YAFFS2 supports 512b page in 'YAFFS1
compatibility' mode (CONFIG_YAFFS_YAFFS1) and 2K or larger page NAND
in YAFFS2 mode (CONFIG_YAFFS_YAFFS2).
A note on licencing
-------------------
YAFFS is available under the GPL and via alternative licensing
arrangements with Aleph One. If you're using YAFFS as a Linux kernel
file system then it will be under the GPL. For use in other situations
you should discuss licensing issues with Aleph One.
Terminology
-----------
Page - NAND addressable unit (normally 512b or 2Kbyte size) - can
be read, written, marked bad. Has associated OOB.
Block - Eraseable unit. 64 Pages. (128K on 2K NAND, 32K on 512b NAND)
OOB - 'spare area' of each page for ECC, bad block marked and YAFFS
tags. 16 bytes per 512b - 64 bytes for 2K page size.
Chunk - Basic YAFFS addressable unit. Same size as Page.
Object - YAFFS Object: File, Directory, Link, Device etc.
YAFFS design
------------
YAFFS is a log-structured filesystem. It is designed particularly for
NAND (as opposed to NOR) flash, to be flash-friendly, robust due to
journalling, and to have low RAM and boot time overheads. File data is
stored in 'chunks'. Chunks are the same size as NAND pages. Each page
is marked with file id and chunk number. These marking 'tags' are
stored in the OOB (or 'spare') region of the flash. The chunk number
is determined by dividing the file position by the chunk size. Each
chunk has a number of valid bytes, which equals the page size for all
except the last chunk in a file.
File 'headers' are stored as the first page in a file, marked as a
different type to data pages. The same mechanism is used to store
directories, device files, links etc. The first page describes which
type of object it is.
YAFFS2 never re-writes a page, because the spec of NAND chips does not
allow it. (YAFFS1 used to mark a block 'deleted' in the OOB). Deletion
is managed by moving deleted objects to the special, hidden 'unlinked'
directory. These records are preserved until all the pages containing
the object have been erased (We know when this happen by keeping a
count of chunks remaining on the system for each object - when it
reaches zero the object really is gone).
When data in a file is overwritten, the relevant chunks are replaced
by writing new pages to flash containing the new data but the same
tags.
Pages are also marked with a short (2 bit) serial number that
increments each time the page at this position is incremented. The
reason for this is that if power loss/crash/other act of demonic
forces happens before the replaced page is marked as discarded, it is
possible to have two pages with the same tags. The serial number is
used to arbitrate.
A block containing only discarded pages (termed a dirty block) is an
obvious candidate for garbage collection. Otherwise valid pages can be
copied off a block thus rendering the whole block discarded and ready
for garbage collection.
In theory you don't need to hold the file structure in RAM... you
could just scan the whole flash looking for pages when you need them.
In practice though you'd want better file access times than that! The
mechanism proposed here is to have a list of __u16 page addresses
associated with each file. Since there are 2^18 pages in a 128MB NAND,
a __u16 is insufficient to uniquely identify a page but is does
identify a group of 4 pages - a small enough region to search
exhaustively. This mechanism is clearly expandable to larger NAND
devices - within reason. The RAM overhead with this approach is approx
2 bytes per page - 512kB of RAM for a whole 128MB NAND.
Boot-time scanning to build the file structure lists only requires
one pass reading NAND. If proper shutdowns happen the current RAM
summary of the filesystem status is saved to flash, called
'checkpointing'. This saves re-scanning the flash on startup, and gives
huge boot/mount time savings.
YAFFS regenerates its state by 'replaying the tape' - i.e. by
scanning the chunks in their allocation order (i.e. block sequence ID
order), which is usually different form the media block order. Each
block is still only read once - starting from the end of the media and
working back.
YAFFS tags in YAFFS1 mode:
18-bit Object ID (2^18 files, i.e. > 260,000 files). File id 0- is not
valid and indicates a deleted page. File od 0x3ffff is also not valid.
Synonymous with inode.
2-bit serial number
20-bit Chunk ID within file. Limit of 2^20 chunks/pages per file (i.e.
> 500MB max file size). Chunk ID 0 is the file header for the file.
10-bit counter of the number of bytes used in the page.
12 bit ECC on tags
YAFFS tags in YAFFS2 mode:
4 bytes 32-bit chunk ID
4 bytes 32-bit object ID
2 bytes Number of data bytes in this chunk
4 bytes Sequence number for this block
3 bytes ECC on tags
12 bytes ECC on data (3 bytes per 256 bytes of data)
Page allocation and garbage collection
Pages are allocated sequentially from the currently selected block.
When all the pages in the block are filled, another clean block is
selected for allocation. At least two or three clean blocks are
reserved for garbage collection purposes. If there are insufficient
clean blocks available, then a dirty block ( ie one containing only
discarded pages) is erased to free it up as a clean block. If no dirty
blocks are available, then the dirtiest block is selected for garbage
collection.
Garbage collection is performed by copying the valid data pages into
new data pages thus rendering all the pages in this block dirty and
freeing it up for erasure. I also like the idea of selecting a block
at random some small percentage of the time - thus reducing the chance
of wear differences.
YAFFS is single-threaded. Garbage-collection is done as a parasitic
task of writing data. So each time some data is written, a bit of
pending garbage collection is done. More pages are garbage-collected
when free space is tight.
Flash writing
YAFFS only ever writes each page once, complying with the requirements
of the most restricitve NAND devices.
Wear levelling
This comes as a side-effect of the block-allocation strategy. Data is
always written on the next free block, so they are all used equally.
Blocks containing data that is written but never erased will not get
back into the free list, so wear is levelled over only blocks which
are free or become free, not blocks which never change.
Some helpful info
-----------------
Formatting a YAFFS device is simply done by erasing it.
Making an initial filesystem can be tricky because YAFFS uses the OOB
and thus the bytes that get written depend on the YAFFS data (tags),
and the ECC bytes and bad block markers which are dictated by the
hardware and/or the MTD subsystem. The data layout also depends on the
device page size (512b or 2K). Because YAFFS is only responsible for
some of the OOB data, generating a filesystem offline requires
detailed knowledge of what the other parts (MTD and NAND
driver/hardware) are going to do.
To make a YAFFS filesystem you have 3 options:
1) Boot the system with an empty NAND device mounted as YAFFS and copy
stuff on.
2) Make a filesystem image offline, then boot the system and use
MTDutils to write an image to flash.
3) Make a filesystem image offline and use some tool like a bootloader to
write it to flash.
Option 1 avoids a lot of issues because all the parts
(YAFFS/MTD/hardware) all take care of their own bits and (if you have
put things together properly) it will 'just work'. YAFFS just needs to
know how many bytes of the OOB it can use. However sometimes it is not
practical.
Option 2 lets MTD/hardware take care of the ECC so the filesystem
image just had to know which bytes to use for YAFFS Tags.
Option 3 is hardest as the image creator needs to know exactly what
ECC bytes, endianness and algorithm to use as well as which bytes are
available to YAFFS.
mkyaffs2image creates an image suitable for option 3 for the
particular case of yaffs2 on 2K page NAND with default MTD layout.
mkyaffsimage creates an equivalent image for 512b page NAND (i.e.
yaffs1 format).
Bootloaders
-----------
A bootloader using YAFFS needs to know how MTD is laying out the OOB
so that it can skip bad blocks.
YAFFS Tracing
-------------

275
fs/yaffs2/devextras.h Normal file
View File

@ -0,0 +1,275 @@
/*
* YAFFS: Yet another Flash File System . A NAND-flash specific file system.
*
* Copyright (C) 2002-2007 Aleph One Ltd.
* for Toby Churchill Ltd and Brightstar Engineering
*
* Created by Charles Manning <charles@aleph1.co.uk>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 2.1 as
* published by the Free Software Foundation.
*
* Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL.
*/
/*
* This file is just holds extra declarations used during development.
* Most of these are from kernel includes placed here so we can use them in
* applications.
*
*/
#ifndef __EXTRAS_H__
#define __EXTRAS_H__
#if defined WIN32
#define __inline__ __inline
#define new newHack
#endif
/* XXX U-BOOT XXX */
#if 1 /* !(defined __KERNEL__) || (defined WIN32) */
/* User space defines */
/* XXX U-BOOT XXX */
#if 0
typedef unsigned char __u8;
typedef unsigned short __u16;
typedef unsigned __u32;
#endif
#include <asm/types.h>
/*
* Simple doubly linked list implementation.
*
* Some of the internal functions ("__xxx") are useful when
* manipulating whole lists rather than single entries, as
* sometimes we already know the next/prev entries and we can
* generate better code by using them directly rather than
* using the generic single-entry routines.
*/
#define prefetch(x) 1
struct list_head {
struct list_head *next, *prev;
};
#define LIST_HEAD_INIT(name) { &(name), &(name) }
#define LIST_HEAD(name) \
struct list_head name = LIST_HEAD_INIT(name)
#define INIT_LIST_HEAD(ptr) do { \
(ptr)->next = (ptr); (ptr)->prev = (ptr); \
} while (0)
/*
* Insert a new entry between two known consecutive entries.
*
* This is only for internal list manipulation where we know
* the prev/next entries already!
*/
static __inline__ void __list_add(struct list_head *new,
struct list_head *prev,
struct list_head *next)
{
next->prev = new;
new->next = next;
new->prev = prev;
prev->next = new;
}
/**
* list_add - add a new entry
* @new: new entry to be added
* @head: list head to add it after
*
* Insert a new entry after the specified head.
* This is good for implementing stacks.
*/
static __inline__ void list_add(struct list_head *new, struct list_head *head)
{
__list_add(new, head, head->next);
}
/**
* list_add_tail - add a new entry
* @new: new entry to be added
* @head: list head to add it before
*
* Insert a new entry before the specified head.
* This is useful for implementing queues.
*/
static __inline__ void list_add_tail(struct list_head *new,
struct list_head *head)
{
__list_add(new, head->prev, head);
}
/*
* Delete a list entry by making the prev/next entries
* point to each other.
*
* This is only for internal list manipulation where we know
* the prev/next entries already!
*/
static __inline__ void __list_del(struct list_head *prev,
struct list_head *next)
{
next->prev = prev;
prev->next = next;
}
/**
* list_del - deletes entry from list.
* @entry: the element to delete from the list.
* Note: list_empty on entry does not return true after this, the entry is
* in an undefined state.
*/
static __inline__ void list_del(struct list_head *entry)
{
__list_del(entry->prev, entry->next);
}
/**
* list_del_init - deletes entry from list and reinitialize it.
* @entry: the element to delete from the list.
*/
static __inline__ void list_del_init(struct list_head *entry)
{
__list_del(entry->prev, entry->next);
INIT_LIST_HEAD(entry);
}
/**
* list_empty - tests whether a list is empty
* @head: the list to test.
*/
static __inline__ int list_empty(struct list_head *head)
{
return head->next == head;
}
/**
* list_splice - join two lists
* @list: the new list to add.
* @head: the place to add it in the first list.
*/
static __inline__ void list_splice(struct list_head *list,
struct list_head *head)
{
struct list_head *first = list->next;
if (first != list) {
struct list_head *last = list->prev;
struct list_head *at = head->next;
first->prev = head;
head->next = first;
last->next = at;
at->prev = last;
}
}
/**
* list_entry - get the struct for this entry
* @ptr: the &struct list_head pointer.
* @type: the type of the struct this is embedded in.
* @member: the name of the list_struct within the struct.
*/
#define list_entry(ptr, type, member) \
((type *)((char *)(ptr)-(unsigned long)(&((type *)0)->member)))
/**
* list_for_each - iterate over a list
* @pos: the &struct list_head to use as a loop counter.
* @head: the head for your list.
*/
#define list_for_each(pos, head) \
for (pos = (head)->next, prefetch(pos->next); pos != (head); \
pos = pos->next, prefetch(pos->next))
/**
* list_for_each_safe - iterate over a list safe against removal
* of list entry
* @pos: the &struct list_head to use as a loop counter.
* @n: another &struct list_head to use as temporary storage
* @head: the head for your list.
*/
#define list_for_each_safe(pos, n, head) \
for (pos = (head)->next, n = pos->next; pos != (head); \
pos = n, n = pos->next)
/*
* File types
*/
#define DT_UNKNOWN 0
#define DT_FIFO 1
#define DT_CHR 2
#define DT_DIR 4
#define DT_BLK 6
#define DT_REG 8
#define DT_LNK 10
#define DT_SOCK 12
#define DT_WHT 14
#ifndef WIN32
/* XXX U-BOOT XXX */
#if 0
#include <sys/stat.h>
#else
#include "common.h"
#endif
#endif
/*
* Attribute flags. These should be or-ed together to figure out what
* has been changed!
*/
#define ATTR_MODE 1
#define ATTR_UID 2
#define ATTR_GID 4
#define ATTR_SIZE 8
#define ATTR_ATIME 16
#define ATTR_MTIME 32
#define ATTR_CTIME 64
#define ATTR_ATIME_SET 128
#define ATTR_MTIME_SET 256
#define ATTR_FORCE 512 /* Not a change, but a change it */
#define ATTR_ATTR_FLAG 1024
struct iattr {
unsigned int ia_valid;
unsigned ia_mode;
unsigned ia_uid;
unsigned ia_gid;
unsigned ia_size;
unsigned ia_atime;
unsigned ia_mtime;
unsigned ia_ctime;
unsigned int ia_attr_flags;
};
#define KERN_DEBUG
#else
#ifndef WIN32
#include <linux/types.h>
#include <linux/list.h>
#include <linux/fs.h>
#include <linux/stat.h>
#endif
#endif
#if defined WIN32
#undef new
#endif
#endif

405
fs/yaffs2/yaffs_checkptrw.c Normal file
View File

@ -0,0 +1,405 @@
/*
* YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
*
* Copyright (C) 2002-2007 Aleph One Ltd.
* for Toby Churchill Ltd and Brightstar Engineering
*
* Created by Charles Manning <charles@aleph1.co.uk>
*
* 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.
*/
/* XXX U-BOOT XXX */
#include <common.h>
#include <malloc.h>
const char *yaffs_checkptrw_c_version =
"$Id: yaffs_checkptrw.c,v 1.14 2007/05/15 20:07:40 charles Exp $";
#include "yaffs_checkptrw.h"
static int yaffs_CheckpointSpaceOk(yaffs_Device *dev)
{
int blocksAvailable = dev->nErasedBlocks - dev->nReservedBlocks;
T(YAFFS_TRACE_CHECKPOINT,
(TSTR("checkpt blocks available = %d" TENDSTR),
blocksAvailable));
return (blocksAvailable <= 0) ? 0 : 1;
}
static int yaffs_CheckpointErase(yaffs_Device *dev)
{
int i;
if(!dev->eraseBlockInNAND)
return 0;
T(YAFFS_TRACE_CHECKPOINT,(TSTR("checking blocks %d to %d"TENDSTR),
dev->internalStartBlock,dev->internalEndBlock));
for(i = dev->internalStartBlock; i <= dev->internalEndBlock; i++) {
yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev,i);
if(bi->blockState == YAFFS_BLOCK_STATE_CHECKPOINT){
T(YAFFS_TRACE_CHECKPOINT,(TSTR("erasing checkpt block %d"TENDSTR),i));
if(dev->eraseBlockInNAND(dev,i- dev->blockOffset /* realign */)){
bi->blockState = YAFFS_BLOCK_STATE_EMPTY;
dev->nErasedBlocks++;
dev->nFreeChunks += dev->nChunksPerBlock;
}
else {
dev->markNANDBlockBad(dev,i);
bi->blockState = YAFFS_BLOCK_STATE_DEAD;
}
}
}
dev->blocksInCheckpoint = 0;
return 1;
}
static void yaffs_CheckpointFindNextErasedBlock(yaffs_Device *dev)
{
int i;
int blocksAvailable = dev->nErasedBlocks - dev->nReservedBlocks;
T(YAFFS_TRACE_CHECKPOINT,
(TSTR("allocating checkpt block: erased %d reserved %d avail %d next %d "TENDSTR),
dev->nErasedBlocks,dev->nReservedBlocks,blocksAvailable,dev->checkpointNextBlock));
if(dev->checkpointNextBlock >= 0 &&
dev->checkpointNextBlock <= dev->internalEndBlock &&
blocksAvailable > 0){
for(i = dev->checkpointNextBlock; i <= dev->internalEndBlock; i++){
yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev,i);
if(bi->blockState == YAFFS_BLOCK_STATE_EMPTY){
dev->checkpointNextBlock = i + 1;
dev->checkpointCurrentBlock = i;
T(YAFFS_TRACE_CHECKPOINT,(TSTR("allocating checkpt block %d"TENDSTR),i));
return;
}
}
}
T(YAFFS_TRACE_CHECKPOINT,(TSTR("out of checkpt blocks"TENDSTR)));
dev->checkpointNextBlock = -1;
dev->checkpointCurrentBlock = -1;
}
static void yaffs_CheckpointFindNextCheckpointBlock(yaffs_Device *dev)
{
int i;
yaffs_ExtendedTags tags;
T(YAFFS_TRACE_CHECKPOINT,(TSTR("find next checkpt block: start: blocks %d next %d" TENDSTR),
dev->blocksInCheckpoint, dev->checkpointNextBlock));
if(dev->blocksInCheckpoint < dev->checkpointMaxBlocks)
for(i = dev->checkpointNextBlock; i <= dev->internalEndBlock; i++){
int chunk = i * dev->nChunksPerBlock;
int realignedChunk = chunk - dev->chunkOffset;
dev->readChunkWithTagsFromNAND(dev,realignedChunk,NULL,&tags);
T(YAFFS_TRACE_CHECKPOINT,(TSTR("find next checkpt block: search: block %d oid %d seq %d eccr %d" TENDSTR),
i, tags.objectId,tags.sequenceNumber,tags.eccResult));
if(tags.sequenceNumber == YAFFS_SEQUENCE_CHECKPOINT_DATA){
/* Right kind of block */
dev->checkpointNextBlock = tags.objectId;
dev->checkpointCurrentBlock = i;
dev->checkpointBlockList[dev->blocksInCheckpoint] = i;
dev->blocksInCheckpoint++;
T(YAFFS_TRACE_CHECKPOINT,(TSTR("found checkpt block %d"TENDSTR),i));
return;
}
}
T(YAFFS_TRACE_CHECKPOINT,(TSTR("found no more checkpt blocks"TENDSTR)));
dev->checkpointNextBlock = -1;
dev->checkpointCurrentBlock = -1;
}
int yaffs_CheckpointOpen(yaffs_Device *dev, int forWriting)
{
/* Got the functions we need? */
if (!dev->writeChunkWithTagsToNAND ||
!dev->readChunkWithTagsFromNAND ||
!dev->eraseBlockInNAND ||
!dev->markNANDBlockBad)
return 0;
if(forWriting && !yaffs_CheckpointSpaceOk(dev))
return 0;
if(!dev->checkpointBuffer)
dev->checkpointBuffer = YMALLOC_DMA(dev->nDataBytesPerChunk);
if(!dev->checkpointBuffer)
return 0;
dev->checkpointPageSequence = 0;
dev->checkpointOpenForWrite = forWriting;
dev->checkpointByteCount = 0;
dev->checkpointSum = 0;
dev->checkpointXor = 0;
dev->checkpointCurrentBlock = -1;
dev->checkpointCurrentChunk = -1;
dev->checkpointNextBlock = dev->internalStartBlock;
/* Erase all the blocks in the checkpoint area */
if(forWriting){
memset(dev->checkpointBuffer,0,dev->nDataBytesPerChunk);
dev->checkpointByteOffset = 0;
return yaffs_CheckpointErase(dev);
} else {
int i;
/* Set to a value that will kick off a read */
dev->checkpointByteOffset = dev->nDataBytesPerChunk;
/* A checkpoint block list of 1 checkpoint block per 16 block is (hopefully)
* going to be way more than we need */
dev->blocksInCheckpoint = 0;
dev->checkpointMaxBlocks = (dev->internalEndBlock - dev->internalStartBlock)/16 + 2;
dev->checkpointBlockList = YMALLOC(sizeof(int) * dev->checkpointMaxBlocks);
for(i = 0; i < dev->checkpointMaxBlocks; i++)
dev->checkpointBlockList[i] = -1;
}
return 1;
}
int yaffs_GetCheckpointSum(yaffs_Device *dev, __u32 *sum)
{
__u32 compositeSum;
compositeSum = (dev->checkpointSum << 8) | (dev->checkpointXor & 0xFF);
*sum = compositeSum;
return 1;
}
static int yaffs_CheckpointFlushBuffer(yaffs_Device *dev)
{
int chunk;
int realignedChunk;
yaffs_ExtendedTags tags;
if(dev->checkpointCurrentBlock < 0){
yaffs_CheckpointFindNextErasedBlock(dev);
dev->checkpointCurrentChunk = 0;
}
if(dev->checkpointCurrentBlock < 0)
return 0;
tags.chunkDeleted = 0;
tags.objectId = dev->checkpointNextBlock; /* Hint to next place to look */
tags.chunkId = dev->checkpointPageSequence + 1;
tags.sequenceNumber = YAFFS_SEQUENCE_CHECKPOINT_DATA;
tags.byteCount = dev->nDataBytesPerChunk;
if(dev->checkpointCurrentChunk == 0){
/* First chunk we write for the block? Set block state to
checkpoint */
yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev,dev->checkpointCurrentBlock);
bi->blockState = YAFFS_BLOCK_STATE_CHECKPOINT;
dev->blocksInCheckpoint++;
}
chunk = dev->checkpointCurrentBlock * dev->nChunksPerBlock + dev->checkpointCurrentChunk;
T(YAFFS_TRACE_CHECKPOINT,(TSTR("checkpoint wite buffer nand %d(%d:%d) objid %d chId %d" TENDSTR),
chunk, dev->checkpointCurrentBlock, dev->checkpointCurrentChunk,tags.objectId,tags.chunkId));
realignedChunk = chunk - dev->chunkOffset;
dev->writeChunkWithTagsToNAND(dev,realignedChunk,dev->checkpointBuffer,&tags);
dev->checkpointByteOffset = 0;
dev->checkpointPageSequence++;
dev->checkpointCurrentChunk++;
if(dev->checkpointCurrentChunk >= dev->nChunksPerBlock){
dev->checkpointCurrentChunk = 0;
dev->checkpointCurrentBlock = -1;
}
memset(dev->checkpointBuffer,0,dev->nDataBytesPerChunk);
return 1;
}
int yaffs_CheckpointWrite(yaffs_Device *dev,const void *data, int nBytes)
{
int i=0;
int ok = 1;
__u8 * dataBytes = (__u8 *)data;
if(!dev->checkpointBuffer)
return 0;
if(!dev->checkpointOpenForWrite)
return -1;
while(i < nBytes && ok) {
dev->checkpointBuffer[dev->checkpointByteOffset] = *dataBytes ;
dev->checkpointSum += *dataBytes;
dev->checkpointXor ^= *dataBytes;
dev->checkpointByteOffset++;
i++;
dataBytes++;
dev->checkpointByteCount++;
if(dev->checkpointByteOffset < 0 ||
dev->checkpointByteOffset >= dev->nDataBytesPerChunk)
ok = yaffs_CheckpointFlushBuffer(dev);
}
return i;
}
int yaffs_CheckpointRead(yaffs_Device *dev, void *data, int nBytes)
{
int i=0;
int ok = 1;
yaffs_ExtendedTags tags;
int chunk;
int realignedChunk;
__u8 *dataBytes = (__u8 *)data;
if(!dev->checkpointBuffer)
return 0;
if(dev->checkpointOpenForWrite)
return -1;
while(i < nBytes && ok) {
if(dev->checkpointByteOffset < 0 ||
dev->checkpointByteOffset >= dev->nDataBytesPerChunk) {
if(dev->checkpointCurrentBlock < 0){
yaffs_CheckpointFindNextCheckpointBlock(dev);
dev->checkpointCurrentChunk = 0;
}
if(dev->checkpointCurrentBlock < 0)
ok = 0;
else {
chunk = dev->checkpointCurrentBlock * dev->nChunksPerBlock +
dev->checkpointCurrentChunk;
realignedChunk = chunk - dev->chunkOffset;
/* read in the next chunk */
/* printf("read checkpoint page %d\n",dev->checkpointPage); */
dev->readChunkWithTagsFromNAND(dev, realignedChunk,
dev->checkpointBuffer,
&tags);
if(tags.chunkId != (dev->checkpointPageSequence + 1) ||
tags.sequenceNumber != YAFFS_SEQUENCE_CHECKPOINT_DATA)
ok = 0;
dev->checkpointByteOffset = 0;
dev->checkpointPageSequence++;
dev->checkpointCurrentChunk++;
if(dev->checkpointCurrentChunk >= dev->nChunksPerBlock)
dev->checkpointCurrentBlock = -1;
}
}
if(ok){
*dataBytes = dev->checkpointBuffer[dev->checkpointByteOffset];
dev->checkpointSum += *dataBytes;
dev->checkpointXor ^= *dataBytes;
dev->checkpointByteOffset++;
i++;
dataBytes++;
dev->checkpointByteCount++;
}
}
return i;
}
int yaffs_CheckpointClose(yaffs_Device *dev)
{
if(dev->checkpointOpenForWrite){
if(dev->checkpointByteOffset != 0)
yaffs_CheckpointFlushBuffer(dev);
} else {
int i;
for(i = 0; i < dev->blocksInCheckpoint && dev->checkpointBlockList[i] >= 0; i++){
yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev,dev->checkpointBlockList[i]);
if(bi->blockState == YAFFS_BLOCK_STATE_EMPTY)
bi->blockState = YAFFS_BLOCK_STATE_CHECKPOINT;
else {
// Todo this looks odd...
}
}
YFREE(dev->checkpointBlockList);
dev->checkpointBlockList = NULL;
}
dev->nFreeChunks -= dev->blocksInCheckpoint * dev->nChunksPerBlock;
dev->nErasedBlocks -= dev->blocksInCheckpoint;
T(YAFFS_TRACE_CHECKPOINT,(TSTR("checkpoint byte count %d" TENDSTR),
dev->checkpointByteCount));
if(dev->checkpointBuffer){
/* free the buffer */
YFREE(dev->checkpointBuffer);
dev->checkpointBuffer = NULL;
return 1;
}
else
return 0;
}
int yaffs_CheckpointInvalidateStream(yaffs_Device *dev)
{
/* Erase the first checksum block */
T(YAFFS_TRACE_CHECKPOINT,(TSTR("checkpoint invalidate"TENDSTR)));
if(!yaffs_CheckpointSpaceOk(dev))
return 0;
return yaffs_CheckpointErase(dev);
}

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/*
* YAFFS: Yet another Flash File System . A NAND-flash specific file system.
*
* Copyright (C) 2002-2007 Aleph One Ltd.
* for Toby Churchill Ltd and Brightstar Engineering
*
* Created by Charles Manning <charles@aleph1.co.uk>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 2.1 as
* published by the Free Software Foundation.
*
* Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL.
*/
#ifndef __YAFFS_CHECKPTRW_H__
#define __YAFFS_CHECKPTRW_H__
#include "yaffs_guts.h"
int yaffs_CheckpointOpen(yaffs_Device *dev, int forWriting);
int yaffs_CheckpointWrite(yaffs_Device *dev,const void *data, int nBytes);
int yaffs_CheckpointRead(yaffs_Device *dev,void *data, int nBytes);
int yaffs_GetCheckpointSum(yaffs_Device *dev, __u32 *sum);
int yaffs_CheckpointClose(yaffs_Device *dev);
int yaffs_CheckpointInvalidateStream(yaffs_Device *dev);
#endif

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/*
* YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
*
* Copyright (C) 2002-2007 Aleph One Ltd.
* for Toby Churchill Ltd and Brightstar Engineering
*
* Created by Charles Manning <charles@aleph1.co.uk>
*
* 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.
*/
/*
* This code implements the ECC algorithm used in SmartMedia.
*
* The ECC comprises 22 bits of parity information and is stuffed into 3 bytes.
* The two unused bit are set to 1.
* The ECC can correct single bit errors in a 256-byte page of data. Thus, two such ECC
* blocks are used on a 512-byte NAND page.
*
*/
/* Table generated by gen-ecc.c
* Using a table means we do not have to calculate p1..p4 and p1'..p4'
* for each byte of data. These are instead provided in a table in bits7..2.
* Bit 0 of each entry indicates whether the entry has an odd or even parity, and therefore
* this bytes influence on the line parity.
*/
/* XXX U-BOOT XXX */
#include <common.h>
const char *yaffs_ecc_c_version =
"$Id: yaffs_ecc.c,v 1.9 2007/02/14 01:09:06 wookey Exp $";
#include "yportenv.h"
#include "yaffs_ecc.h"
static const unsigned char column_parity_table[] = {
0x00, 0x55, 0x59, 0x0c, 0x65, 0x30, 0x3c, 0x69,
0x69, 0x3c, 0x30, 0x65, 0x0c, 0x59, 0x55, 0x00,
0x95, 0xc0, 0xcc, 0x99, 0xf0, 0xa5, 0xa9, 0xfc,
0xfc, 0xa9, 0xa5, 0xf0, 0x99, 0xcc, 0xc0, 0x95,
0x99, 0xcc, 0xc0, 0x95, 0xfc, 0xa9, 0xa5, 0xf0,
0xf0, 0xa5, 0xa9, 0xfc, 0x95, 0xc0, 0xcc, 0x99,
0x0c, 0x59, 0x55, 0x00, 0x69, 0x3c, 0x30, 0x65,
0x65, 0x30, 0x3c, 0x69, 0x00, 0x55, 0x59, 0x0c,
0xa5, 0xf0, 0xfc, 0xa9, 0xc0, 0x95, 0x99, 0xcc,
0xcc, 0x99, 0x95, 0xc0, 0xa9, 0xfc, 0xf0, 0xa5,
0x30, 0x65, 0x69, 0x3c, 0x55, 0x00, 0x0c, 0x59,
0x59, 0x0c, 0x00, 0x55, 0x3c, 0x69, 0x65, 0x30,
0x3c, 0x69, 0x65, 0x30, 0x59, 0x0c, 0x00, 0x55,
0x55, 0x00, 0x0c, 0x59, 0x30, 0x65, 0x69, 0x3c,
0xa9, 0xfc, 0xf0, 0xa5, 0xcc, 0x99, 0x95, 0xc0,
0xc0, 0x95, 0x99, 0xcc, 0xa5, 0xf0, 0xfc, 0xa9,
0xa9, 0xfc, 0xf0, 0xa5, 0xcc, 0x99, 0x95, 0xc0,
0xc0, 0x95, 0x99, 0xcc, 0xa5, 0xf0, 0xfc, 0xa9,
0x3c, 0x69, 0x65, 0x30, 0x59, 0x0c, 0x00, 0x55,
0x55, 0x00, 0x0c, 0x59, 0x30, 0x65, 0x69, 0x3c,
0x30, 0x65, 0x69, 0x3c, 0x55, 0x00, 0x0c, 0x59,
0x59, 0x0c, 0x00, 0x55, 0x3c, 0x69, 0x65, 0x30,
0xa5, 0xf0, 0xfc, 0xa9, 0xc0, 0x95, 0x99, 0xcc,
0xcc, 0x99, 0x95, 0xc0, 0xa9, 0xfc, 0xf0, 0xa5,
0x0c, 0x59, 0x55, 0x00, 0x69, 0x3c, 0x30, 0x65,
0x65, 0x30, 0x3c, 0x69, 0x00, 0x55, 0x59, 0x0c,
0x99, 0xcc, 0xc0, 0x95, 0xfc, 0xa9, 0xa5, 0xf0,
0xf0, 0xa5, 0xa9, 0xfc, 0x95, 0xc0, 0xcc, 0x99,
0x95, 0xc0, 0xcc, 0x99, 0xf0, 0xa5, 0xa9, 0xfc,
0xfc, 0xa9, 0xa5, 0xf0, 0x99, 0xcc, 0xc0, 0x95,
0x00, 0x55, 0x59, 0x0c, 0x65, 0x30, 0x3c, 0x69,
0x69, 0x3c, 0x30, 0x65, 0x0c, 0x59, 0x55, 0x00,
};
/* Count the bits in an unsigned char or a U32 */
static int yaffs_CountBits(unsigned char x)
{
int r = 0;
while (x) {
if (x & 1)
r++;
x >>= 1;
}
return r;
}
static int yaffs_CountBits32(unsigned x)
{
int r = 0;
while (x) {
if (x & 1)
r++;
x >>= 1;
}
return r;
}
/* Calculate the ECC for a 256-byte block of data */
void yaffs_ECCCalculate(const unsigned char *data, unsigned char *ecc)
{
unsigned int i;
unsigned char col_parity = 0;
unsigned char line_parity = 0;
unsigned char line_parity_prime = 0;
unsigned char t;
unsigned char b;
for (i = 0; i < 256; i++) {
b = column_parity_table[*data++];
col_parity ^= b;
if (b & 0x01) // odd number of bits in the byte
{
line_parity ^= i;
line_parity_prime ^= ~i;
}
}
ecc[2] = (~col_parity) | 0x03;
t = 0;
if (line_parity & 0x80)
t |= 0x80;
if (line_parity_prime & 0x80)
t |= 0x40;
if (line_parity & 0x40)
t |= 0x20;
if (line_parity_prime & 0x40)
t |= 0x10;
if (line_parity & 0x20)
t |= 0x08;
if (line_parity_prime & 0x20)
t |= 0x04;
if (line_parity & 0x10)
t |= 0x02;
if (line_parity_prime & 0x10)
t |= 0x01;
ecc[1] = ~t;
t = 0;
if (line_parity & 0x08)
t |= 0x80;
if (line_parity_prime & 0x08)
t |= 0x40;
if (line_parity & 0x04)
t |= 0x20;
if (line_parity_prime & 0x04)
t |= 0x10;
if (line_parity & 0x02)
t |= 0x08;
if (line_parity_prime & 0x02)
t |= 0x04;
if (line_parity & 0x01)
t |= 0x02;
if (line_parity_prime & 0x01)
t |= 0x01;
ecc[0] = ~t;
#ifdef CONFIG_YAFFS_ECC_WRONG_ORDER
// Swap the bytes into the wrong order
t = ecc[0];
ecc[0] = ecc[1];
ecc[1] = t;
#endif
}
/* Correct the ECC on a 256 byte block of data */
int yaffs_ECCCorrect(unsigned char *data, unsigned char *read_ecc,
const unsigned char *test_ecc)
{
unsigned char d0, d1, d2; /* deltas */
d0 = read_ecc[0] ^ test_ecc[0];
d1 = read_ecc[1] ^ test_ecc[1];
d2 = read_ecc[2] ^ test_ecc[2];
if ((d0 | d1 | d2) == 0)
return 0; /* no error */
if (((d0 ^ (d0 >> 1)) & 0x55) == 0x55 &&
((d1 ^ (d1 >> 1)) & 0x55) == 0x55 &&
((d2 ^ (d2 >> 1)) & 0x54) == 0x54) {
/* Single bit (recoverable) error in data */
unsigned byte;
unsigned bit;
#ifdef CONFIG_YAFFS_ECC_WRONG_ORDER
// swap the bytes to correct for the wrong order
unsigned char t;
t = d0;
d0 = d1;
d1 = t;
#endif
bit = byte = 0;
if (d1 & 0x80)
byte |= 0x80;
if (d1 & 0x20)
byte |= 0x40;
if (d1 & 0x08)
byte |= 0x20;
if (d1 & 0x02)
byte |= 0x10;
if (d0 & 0x80)
byte |= 0x08;
if (d0 & 0x20)
byte |= 0x04;
if (d0 & 0x08)
byte |= 0x02;
if (d0 & 0x02)
byte |= 0x01;
if (d2 & 0x80)
bit |= 0x04;
if (d2 & 0x20)
bit |= 0x02;
if (d2 & 0x08)
bit |= 0x01;
data[byte] ^= (1 << bit);
return 1; /* Corrected the error */
}
if ((yaffs_CountBits(d0) +
yaffs_CountBits(d1) +
yaffs_CountBits(d2)) == 1) {
/* Reccoverable error in ecc */
read_ecc[0] = test_ecc[0];
read_ecc[1] = test_ecc[1];
read_ecc[2] = test_ecc[2];
return 1; /* Corrected the error */
}
/* Unrecoverable error */
return -1;
}
/*
* ECCxxxOther does ECC calcs on arbitrary n bytes of data
*/
void yaffs_ECCCalculateOther(const unsigned char *data, unsigned nBytes,
yaffs_ECCOther * eccOther)
{
unsigned int i;
unsigned char col_parity = 0;
unsigned line_parity = 0;
unsigned line_parity_prime = 0;
unsigned char b;
for (i = 0; i < nBytes; i++) {
b = column_parity_table[*data++];
col_parity ^= b;
if (b & 0x01) {
/* odd number of bits in the byte */
line_parity ^= i;
line_parity_prime ^= ~i;
}
}
eccOther->colParity = (col_parity >> 2) & 0x3f;
eccOther->lineParity = line_parity;
eccOther->lineParityPrime = line_parity_prime;
}
int yaffs_ECCCorrectOther(unsigned char *data, unsigned nBytes,
yaffs_ECCOther * read_ecc,
const yaffs_ECCOther * test_ecc)
{
unsigned char cDelta; /* column parity delta */
unsigned lDelta; /* line parity delta */
unsigned lDeltaPrime; /* line parity delta */
unsigned bit;
cDelta = read_ecc->colParity ^ test_ecc->colParity;
lDelta = read_ecc->lineParity ^ test_ecc->lineParity;
lDeltaPrime = read_ecc->lineParityPrime ^ test_ecc->lineParityPrime;
if ((cDelta | lDelta | lDeltaPrime) == 0)
return 0; /* no error */
if (lDelta == ~lDeltaPrime &&
(((cDelta ^ (cDelta >> 1)) & 0x15) == 0x15))
{
/* Single bit (recoverable) error in data */
bit = 0;
if (cDelta & 0x20)
bit |= 0x04;
if (cDelta & 0x08)
bit |= 0x02;
if (cDelta & 0x02)
bit |= 0x01;
if(lDelta >= nBytes)
return -1;
data[lDelta] ^= (1 << bit);
return 1; /* corrected */
}
if ((yaffs_CountBits32(lDelta) + yaffs_CountBits32(lDeltaPrime) +
yaffs_CountBits(cDelta)) == 1) {
/* Reccoverable error in ecc */
*read_ecc = *test_ecc;
return 1; /* corrected */
}
/* Unrecoverable error */
return -1;
}

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/*
* YAFFS: Yet another Flash File System . A NAND-flash specific file system.
*
* Copyright (C) 2002-2007 Aleph One Ltd.
* for Toby Churchill Ltd and Brightstar Engineering
*
* Created by Charles Manning <charles@aleph1.co.uk>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 2.1 as
* published by the Free Software Foundation.
*
* Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL.
*/
/*
* This code implements the ECC algorithm used in SmartMedia.
*
* The ECC comprises 22 bits of parity information and is stuffed into 3 bytes.
* The two unused bit are set to 1.
* The ECC can correct single bit errors in a 256-byte page of data. Thus, two such ECC
* blocks are used on a 512-byte NAND page.
*
*/
#ifndef __YAFFS_ECC_H__
#define __YAFFS_ECC_H__
typedef struct {
unsigned char colParity;
unsigned lineParity;
unsigned lineParityPrime;
} yaffs_ECCOther;
void yaffs_ECCCalculate(const unsigned char *data, unsigned char *ecc);
int yaffs_ECCCorrect(unsigned char *data, unsigned char *read_ecc,
const unsigned char *test_ecc);
void yaffs_ECCCalculateOther(const unsigned char *data, unsigned nBytes,
yaffs_ECCOther * ecc);
int yaffs_ECCCorrectOther(unsigned char *data, unsigned nBytes,
yaffs_ECCOther * read_ecc,
const yaffs_ECCOther * test_ecc);
#endif

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/*
* YAFFS: Yet another Flash File System . A NAND-flash specific file system.
*
* Copyright (C) 2002-2007 Aleph One Ltd.
* for Toby Churchill Ltd and Brightstar Engineering
*
* Created by Charles Manning <charles@aleph1.co.uk>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 2.1 as
* published by the Free Software Foundation.
*
* Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL.
*/
#ifndef __YAFFS_FLASH_H__
#define __YAFFS_FLASH_H__
#include "yaffs_guts.h"
int yflash_EraseBlockInNAND(yaffs_Device *dev, int blockNumber);
int yflash_WriteChunkToNAND(yaffs_Device *dev,int chunkInNAND,const __u8 *data, const yaffs_Spare *spare);
int yflash_WriteChunkWithTagsToNAND(yaffs_Device *dev,int chunkInNAND,const __u8 *data, yaffs_ExtendedTags *tags);
int yflash_ReadChunkFromNAND(yaffs_Device *dev,int chunkInNAND, __u8 *data, yaffs_Spare *spare);
int yflash_ReadChunkWithTagsFromNAND(yaffs_Device *dev,int chunkInNAND, __u8 *data, yaffs_ExtendedTags *tags);
int yflash_EraseBlockInNAND(yaffs_Device *dev, int blockNumber);
int yflash_InitialiseNAND(yaffs_Device *dev);
int yflash_MarkNANDBlockBad(struct yaffs_DeviceStruct *dev, int blockNo);
int yflash_QueryNANDBlock(struct yaffs_DeviceStruct *dev, int blockNo, yaffs_BlockState *state, int *sequenceNumber);
#endif

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/*
* YAFFS: Yet another Flash File System . A NAND-flash specific file system.
*
* Copyright (C) 2002-2007 Aleph One Ltd.
* for Toby Churchill Ltd and Brightstar Engineering
*
* Created by Charles Manning <charles@aleph1.co.uk>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 2.1 as
* published by the Free Software Foundation.
*
* Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL.
*/
#ifndef __YAFFS_GUTS_H__
#define __YAFFS_GUTS_H__
#include "devextras.h"
#include "yportenv.h"
#define YAFFS_OK 1
#define YAFFS_FAIL 0
/* Give us a Y=0x59,
* Give us an A=0x41,
* Give us an FF=0xFF
* Give us an S=0x53
* And what have we got...
*/
#define YAFFS_MAGIC 0x5941FF53
#define YAFFS_NTNODES_LEVEL0 16
#define YAFFS_TNODES_LEVEL0_BITS 4
#define YAFFS_TNODES_LEVEL0_MASK 0xf
#define YAFFS_NTNODES_INTERNAL (YAFFS_NTNODES_LEVEL0 / 2)
#define YAFFS_TNODES_INTERNAL_BITS (YAFFS_TNODES_LEVEL0_BITS - 1)
#define YAFFS_TNODES_INTERNAL_MASK 0x7
#define YAFFS_TNODES_MAX_LEVEL 6
#ifndef CONFIG_YAFFS_NO_YAFFS1
#define YAFFS_BYTES_PER_SPARE 16
#define YAFFS_BYTES_PER_CHUNK 512
#define YAFFS_CHUNK_SIZE_SHIFT 9
#define YAFFS_CHUNKS_PER_BLOCK 32
#define YAFFS_BYTES_PER_BLOCK (YAFFS_CHUNKS_PER_BLOCK*YAFFS_BYTES_PER_CHUNK)
#endif
#define YAFFS_MIN_YAFFS2_CHUNK_SIZE 1024
#define YAFFS_MIN_YAFFS2_SPARE_SIZE 32
#define YAFFS_MAX_CHUNK_ID 0x000FFFFF
#define YAFFS_UNUSED_OBJECT_ID 0x0003FFFF
#define YAFFS_ALLOCATION_NOBJECTS 100
#define YAFFS_ALLOCATION_NTNODES 100
#define YAFFS_ALLOCATION_NLINKS 100
#define YAFFS_NOBJECT_BUCKETS 256
#define YAFFS_OBJECT_SPACE 0x40000
#define YAFFS_CHECKPOINT_VERSION 3
#ifdef CONFIG_YAFFS_UNICODE
#define YAFFS_MAX_NAME_LENGTH 127
#define YAFFS_MAX_ALIAS_LENGTH 79
#else
#define YAFFS_MAX_NAME_LENGTH 255
#define YAFFS_MAX_ALIAS_LENGTH 159
#endif
#define YAFFS_SHORT_NAME_LENGTH 15
/* Some special object ids for pseudo objects */
#define YAFFS_OBJECTID_ROOT 1
#define YAFFS_OBJECTID_LOSTNFOUND 2
#define YAFFS_OBJECTID_UNLINKED 3
#define YAFFS_OBJECTID_DELETED 4
/* Sseudo object ids for checkpointing */
#define YAFFS_OBJECTID_SB_HEADER 0x10
#define YAFFS_OBJECTID_CHECKPOINT_DATA 0x20
#define YAFFS_SEQUENCE_CHECKPOINT_DATA 0x21
/* */
#define YAFFS_MAX_SHORT_OP_CACHES 20
#define YAFFS_N_TEMP_BUFFERS 4
/* We limit the number attempts at sucessfully saving a chunk of data.
* Small-page devices have 32 pages per block; large-page devices have 64.
* Default to something in the order of 5 to 10 blocks worth of chunks.
*/
#define YAFFS_WR_ATTEMPTS (5*64)
/* Sequence numbers are used in YAFFS2 to determine block allocation order.
* The range is limited slightly to help distinguish bad numbers from good.
* This also allows us to perhaps in the future use special numbers for
* special purposes.
* EFFFFF00 allows the allocation of 8 blocks per second (~1Mbytes) for 15 years,
* and is a larger number than the lifetime of a 2GB device.
*/
#define YAFFS_LOWEST_SEQUENCE_NUMBER 0x00001000
#define YAFFS_HIGHEST_SEQUENCE_NUMBER 0xEFFFFF00
/* ChunkCache is used for short read/write operations.*/
typedef struct {
struct yaffs_ObjectStruct *object;
int chunkId;
int lastUse;
int dirty;
int nBytes; /* Only valid if the cache is dirty */
int locked; /* Can't push out or flush while locked. */
#ifdef CONFIG_YAFFS_YAFFS2
__u8 *data;
#else
__u8 data[YAFFS_BYTES_PER_CHUNK];
#endif
} yaffs_ChunkCache;
/* Tags structures in RAM
* NB This uses bitfield. Bitfields should not straddle a u32 boundary otherwise
* the structure size will get blown out.
*/
#ifndef CONFIG_YAFFS_NO_YAFFS1
typedef struct {
unsigned chunkId:20;
unsigned serialNumber:2;
unsigned byteCount:10;
unsigned objectId:18;
unsigned ecc:12;
unsigned unusedStuff:2;
} yaffs_Tags;
typedef union {
yaffs_Tags asTags;
__u8 asBytes[8];
} yaffs_TagsUnion;
#endif
/* Stuff used for extended tags in YAFFS2 */
typedef enum {
YAFFS_ECC_RESULT_UNKNOWN,
YAFFS_ECC_RESULT_NO_ERROR,
YAFFS_ECC_RESULT_FIXED,
YAFFS_ECC_RESULT_UNFIXED
} yaffs_ECCResult;
typedef enum {
YAFFS_OBJECT_TYPE_UNKNOWN,
YAFFS_OBJECT_TYPE_FILE,
YAFFS_OBJECT_TYPE_SYMLINK,
YAFFS_OBJECT_TYPE_DIRECTORY,
YAFFS_OBJECT_TYPE_HARDLINK,
YAFFS_OBJECT_TYPE_SPECIAL
} yaffs_ObjectType;
#define YAFFS_OBJECT_TYPE_MAX YAFFS_OBJECT_TYPE_SPECIAL
typedef struct {
unsigned validMarker0;
unsigned chunkUsed; /* Status of the chunk: used or unused */
unsigned objectId; /* If 0 then this is not part of an object (unused) */
unsigned chunkId; /* If 0 then this is a header, else a data chunk */
unsigned byteCount; /* Only valid for data chunks */
/* The following stuff only has meaning when we read */
yaffs_ECCResult eccResult;
unsigned blockBad;
/* YAFFS 1 stuff */
unsigned chunkDeleted; /* The chunk is marked deleted */
unsigned serialNumber; /* Yaffs1 2-bit serial number */
/* YAFFS2 stuff */
unsigned sequenceNumber; /* The sequence number of this block */
/* Extra info if this is an object header (YAFFS2 only) */
unsigned extraHeaderInfoAvailable; /* There is extra info available if this is not zero */
unsigned extraParentObjectId; /* The parent object */
unsigned extraIsShrinkHeader; /* Is it a shrink header? */
unsigned extraShadows; /* Does this shadow another object? */
yaffs_ObjectType extraObjectType; /* What object type? */
unsigned extraFileLength; /* Length if it is a file */
unsigned extraEquivalentObjectId; /* Equivalent object Id if it is a hard link */
unsigned validMarker1;
} yaffs_ExtendedTags;
/* Spare structure for YAFFS1 */
typedef struct {
__u8 tagByte0;
__u8 tagByte1;
__u8 tagByte2;
__u8 tagByte3;
__u8 pageStatus; /* set to 0 to delete the chunk */
__u8 blockStatus;
__u8 tagByte4;
__u8 tagByte5;
__u8 ecc1[3];
__u8 tagByte6;
__u8 tagByte7;
__u8 ecc2[3];
} yaffs_Spare;
/*Special structure for passing through to mtd */
struct yaffs_NANDSpare {
yaffs_Spare spare;
int eccres1;
int eccres2;
};
/* Block data in RAM */
typedef enum {
YAFFS_BLOCK_STATE_UNKNOWN = 0,
YAFFS_BLOCK_STATE_SCANNING,
YAFFS_BLOCK_STATE_NEEDS_SCANNING,
/* The block might have something on it (ie it is allocating or full, perhaps empty)
* but it needs to be scanned to determine its true state.
* This state is only valid during yaffs_Scan.
* NB We tolerate empty because the pre-scanner might be incapable of deciding
* However, if this state is returned on a YAFFS2 device, then we expect a sequence number
*/
YAFFS_BLOCK_STATE_EMPTY,
/* This block is empty */
YAFFS_BLOCK_STATE_ALLOCATING,
/* This block is partially allocated.
* At least one page holds valid data.
* This is the one currently being used for page
* allocation. Should never be more than one of these
*/
YAFFS_BLOCK_STATE_FULL,
/* All the pages in this block have been allocated.
*/
YAFFS_BLOCK_STATE_DIRTY,
/* All pages have been allocated and deleted.
* Erase me, reuse me.
*/
YAFFS_BLOCK_STATE_CHECKPOINT,
/* This block is assigned to holding checkpoint data.
*/
YAFFS_BLOCK_STATE_COLLECTING,
/* This block is being garbage collected */
YAFFS_BLOCK_STATE_DEAD
/* This block has failed and is not in use */
} yaffs_BlockState;
#define YAFFS_NUMBER_OF_BLOCK_STATES (YAFFS_BLOCK_STATE_DEAD + 1)
typedef struct {
int softDeletions:10; /* number of soft deleted pages */
int pagesInUse:10; /* number of pages in use */
unsigned blockState:4; /* One of the above block states. NB use unsigned because enum is sometimes an int */
__u32 needsRetiring:1; /* Data has failed on this block, need to get valid data off */
/* and retire the block. */
__u32 skipErasedCheck: 1; /* If this is set we can skip the erased check on this block */
__u32 gcPrioritise: 1; /* An ECC check or blank check has failed on this block.
It should be prioritised for GC */
__u32 chunkErrorStrikes:3; /* How many times we've had ecc etc failures on this block and tried to reuse it */
#ifdef CONFIG_YAFFS_YAFFS2
__u32 hasShrinkHeader:1; /* This block has at least one shrink object header */
__u32 sequenceNumber; /* block sequence number for yaffs2 */
#endif
} yaffs_BlockInfo;
/* -------------------------- Object structure -------------------------------*/
/* This is the object structure as stored on NAND */
typedef struct {
yaffs_ObjectType type;
/* Apply to everything */
int parentObjectId;
__u16 sum__NoLongerUsed; /* checksum of name. No longer used */
YCHAR name[YAFFS_MAX_NAME_LENGTH + 1];
/* Thes following apply to directories, files, symlinks - not hard links */
__u32 yst_mode; /* protection */
#ifdef CONFIG_YAFFS_WINCE
__u32 notForWinCE[5];
#else
__u32 yst_uid;
__u32 yst_gid;
__u32 yst_atime;
__u32 yst_mtime;
__u32 yst_ctime;
#endif
/* File size applies to files only */
int fileSize;
/* Equivalent object id applies to hard links only. */
int equivalentObjectId;
/* Alias is for symlinks only. */
YCHAR alias[YAFFS_MAX_ALIAS_LENGTH + 1];
__u32 yst_rdev; /* device stuff for block and char devices (major/min) */
#ifdef CONFIG_YAFFS_WINCE
__u32 win_ctime[2];
__u32 win_atime[2];
__u32 win_mtime[2];
__u32 roomToGrow[4];
#else
__u32 roomToGrow[10];
#endif
int shadowsObject; /* This object header shadows the specified object if > 0 */
/* isShrink applies to object headers written when we shrink the file (ie resize) */
__u32 isShrink;
} yaffs_ObjectHeader;
/*--------------------------- Tnode -------------------------- */
union yaffs_Tnode_union {
#ifdef CONFIG_YAFFS_TNODE_LIST_DEBUG
union yaffs_Tnode_union *internal[YAFFS_NTNODES_INTERNAL + 1];
#else
union yaffs_Tnode_union *internal[YAFFS_NTNODES_INTERNAL];
#endif
/* __u16 level0[YAFFS_NTNODES_LEVEL0]; */
};
typedef union yaffs_Tnode_union yaffs_Tnode;
struct yaffs_TnodeList_struct {
struct yaffs_TnodeList_struct *next;
yaffs_Tnode *tnodes;
};
typedef struct yaffs_TnodeList_struct yaffs_TnodeList;
/*------------------------ Object -----------------------------*/
/* An object can be one of:
* - a directory (no data, has children links
* - a regular file (data.... not prunes :->).
* - a symlink [symbolic link] (the alias).
* - a hard link
*/
typedef struct {
__u32 fileSize;
__u32 scannedFileSize;
__u32 shrinkSize;
int topLevel;
yaffs_Tnode *top;
} yaffs_FileStructure;
typedef struct {
struct list_head children; /* list of child links */
} yaffs_DirectoryStructure;
typedef struct {
YCHAR *alias;
} yaffs_SymLinkStructure;
typedef struct {
struct yaffs_ObjectStruct *equivalentObject;
__u32 equivalentObjectId;
} yaffs_HardLinkStructure;
typedef union {
yaffs_FileStructure fileVariant;
yaffs_DirectoryStructure directoryVariant;
yaffs_SymLinkStructure symLinkVariant;
yaffs_HardLinkStructure hardLinkVariant;
} yaffs_ObjectVariant;
struct yaffs_ObjectStruct {
__u8 deleted:1; /* This should only apply to unlinked files. */
__u8 softDeleted:1; /* it has also been soft deleted */
__u8 unlinked:1; /* An unlinked file. The file should be in the unlinked directory.*/
__u8 fake:1; /* A fake object has no presence on NAND. */
__u8 renameAllowed:1; /* Some objects are not allowed to be renamed. */
__u8 unlinkAllowed:1;
__u8 dirty:1; /* the object needs to be written to flash */
__u8 valid:1; /* When the file system is being loaded up, this
* object might be created before the data
* is available (ie. file data records appear before the header).
*/
__u8 lazyLoaded:1; /* This object has been lazy loaded and is missing some detail */
__u8 deferedFree:1; /* For Linux kernel. Object is removed from NAND, but is
* still in the inode cache. Free of object is defered.
* until the inode is released.
*/
__u8 serial; /* serial number of chunk in NAND. Cached here */
__u16 sum; /* sum of the name to speed searching */
struct yaffs_DeviceStruct *myDev; /* The device I'm on */
struct list_head hashLink; /* list of objects in this hash bucket */
struct list_head hardLinks; /* all the equivalent hard linked objects */
/* directory structure stuff */
/* also used for linking up the free list */
struct yaffs_ObjectStruct *parent;
struct list_head siblings;
/* Where's my object header in NAND? */
int chunkId;
int nDataChunks; /* Number of data chunks attached to the file. */
__u32 objectId; /* the object id value */
__u32 yst_mode;
#ifdef CONFIG_YAFFS_SHORT_NAMES_IN_RAM
YCHAR shortName[YAFFS_SHORT_NAME_LENGTH + 1];
#endif
/* XXX U-BOOT XXX */
/* #ifndef __KERNEL__ */
__u32 inUse;
/* #endif */
#ifdef CONFIG_YAFFS_WINCE
__u32 win_ctime[2];
__u32 win_mtime[2];
__u32 win_atime[2];
#else
__u32 yst_uid;
__u32 yst_gid;
__u32 yst_atime;
__u32 yst_mtime;
__u32 yst_ctime;
#endif
__u32 yst_rdev;
/* XXX U-BOOT XXX */
/* #ifndef __KERNEL__ */
struct inode *myInode;
/* #endif */
yaffs_ObjectType variantType;
yaffs_ObjectVariant variant;
};
typedef struct yaffs_ObjectStruct yaffs_Object;
struct yaffs_ObjectList_struct {
yaffs_Object *objects;
struct yaffs_ObjectList_struct *next;
};
typedef struct yaffs_ObjectList_struct yaffs_ObjectList;
typedef struct {
struct list_head list;
int count;
} yaffs_ObjectBucket;
/* yaffs_CheckpointObject holds the definition of an object as dumped
* by checkpointing.
*/
typedef struct {
int structType;
__u32 objectId;
__u32 parentId;
int chunkId;
yaffs_ObjectType variantType:3;
__u8 deleted:1;
__u8 softDeleted:1;
__u8 unlinked:1;
__u8 fake:1;
__u8 renameAllowed:1;
__u8 unlinkAllowed:1;
__u8 serial;
int nDataChunks;
__u32 fileSizeOrEquivalentObjectId;
}yaffs_CheckpointObject;
/*--------------------- Temporary buffers ----------------
*
* These are chunk-sized working buffers. Each device has a few
*/
typedef struct {
__u8 *buffer;
int line; /* track from whence this buffer was allocated */
int maxLine;
} yaffs_TempBuffer;
/*----------------- Device ---------------------------------*/
struct yaffs_DeviceStruct {
struct list_head devList;
const char *name;
/* Entry parameters set up way early. Yaffs sets up the rest.*/
int nDataBytesPerChunk; /* Should be a power of 2 >= 512 */
int nChunksPerBlock; /* does not need to be a power of 2 */
int nBytesPerSpare; /* spare area size */
int startBlock; /* Start block we're allowed to use */
int endBlock; /* End block we're allowed to use */
int nReservedBlocks; /* We want this tuneable so that we can reduce */
/* reserved blocks on NOR and RAM. */
/* Stuff used by the shared space checkpointing mechanism */
/* If this value is zero, then this mechanism is disabled */
int nCheckpointReservedBlocks; /* Blocks to reserve for checkpoint data */
int nShortOpCaches; /* If <= 0, then short op caching is disabled, else
* the number of short op caches (don't use too many)
*/
int useHeaderFileSize; /* Flag to determine if we should use file sizes from the header */
int useNANDECC; /* Flag to decide whether or not to use NANDECC */
void *genericDevice; /* Pointer to device context
* On an mtd this holds the mtd pointer.
*/
void *superBlock;
/* NAND access functions (Must be set before calling YAFFS)*/
int (*writeChunkToNAND) (struct yaffs_DeviceStruct * dev,
int chunkInNAND, const __u8 * data,
const yaffs_Spare * spare);
int (*readChunkFromNAND) (struct yaffs_DeviceStruct * dev,
int chunkInNAND, __u8 * data,
yaffs_Spare * spare);
int (*eraseBlockInNAND) (struct yaffs_DeviceStruct * dev,
int blockInNAND);
int (*initialiseNAND) (struct yaffs_DeviceStruct * dev);
#ifdef CONFIG_YAFFS_YAFFS2
int (*writeChunkWithTagsToNAND) (struct yaffs_DeviceStruct * dev,
int chunkInNAND, const __u8 * data,
const yaffs_ExtendedTags * tags);
int (*readChunkWithTagsFromNAND) (struct yaffs_DeviceStruct * dev,
int chunkInNAND, __u8 * data,
yaffs_ExtendedTags * tags);
int (*markNANDBlockBad) (struct yaffs_DeviceStruct * dev, int blockNo);
int (*queryNANDBlock) (struct yaffs_DeviceStruct * dev, int blockNo,
yaffs_BlockState * state, int *sequenceNumber);
#endif
int isYaffs2;
/* The removeObjectCallback function must be supplied by OS flavours that
* need it. The Linux kernel does not use this, but yaffs direct does use
* it to implement the faster readdir
*/
void (*removeObjectCallback)(struct yaffs_ObjectStruct *obj);
/* Callback to mark the superblock dirsty */
void (*markSuperBlockDirty)(void * superblock);
int wideTnodesDisabled; /* Set to disable wide tnodes */
/* End of stuff that must be set before initialisation. */
/* Checkpoint control. Can be set before or after initialisation */
__u8 skipCheckpointRead;
__u8 skipCheckpointWrite;
/* Runtime parameters. Set up by YAFFS. */
__u16 chunkGroupBits; /* 0 for devices <= 32MB. else log2(nchunks) - 16 */
__u16 chunkGroupSize; /* == 2^^chunkGroupBits */
/* Stuff to support wide tnodes */
__u32 tnodeWidth;
__u32 tnodeMask;
/* Stuff to support various file offses to chunk/offset translations */
/* "Crumbs" for nDataBytesPerChunk not being a power of 2 */
__u32 crumbMask;
__u32 crumbShift;
__u32 crumbsPerChunk;
/* Straight shifting for nDataBytesPerChunk being a power of 2 */
__u32 chunkShift;
__u32 chunkMask;
/* XXX U-BOOT XXX */
#if 0
#ifndef __KERNEL__
struct semaphore sem; /* Semaphore for waiting on erasure.*/
struct semaphore grossLock; /* Gross locking semaphore */
void (*putSuperFunc) (struct super_block * sb);
#endif
#endif
__u8 *spareBuffer; /* For mtdif2 use. Don't know the size of the buffer
* at compile time so we have to allocate it.
*/
int isMounted;
int isCheckpointed;
/* Stuff to support block offsetting to support start block zero */
int internalStartBlock;
int internalEndBlock;
int blockOffset;
int chunkOffset;
/* Runtime checkpointing stuff */
int checkpointPageSequence; /* running sequence number of checkpoint pages */
int checkpointByteCount;
int checkpointByteOffset;
__u8 *checkpointBuffer;
int checkpointOpenForWrite;
int blocksInCheckpoint;
int checkpointCurrentChunk;
int checkpointCurrentBlock;
int checkpointNextBlock;
int *checkpointBlockList;
int checkpointMaxBlocks;
__u32 checkpointSum;
__u32 checkpointXor;
/* Block Info */
yaffs_BlockInfo *blockInfo;
__u8 *chunkBits; /* bitmap of chunks in use */
unsigned blockInfoAlt:1; /* was allocated using alternative strategy */
unsigned chunkBitsAlt:1; /* was allocated using alternative strategy */
int chunkBitmapStride; /* Number of bytes of chunkBits per block.
* Must be consistent with nChunksPerBlock.
*/
int nErasedBlocks;
int allocationBlock; /* Current block being allocated off */
__u32 allocationPage;
int allocationBlockFinder; /* Used to search for next allocation block */
/* Runtime state */
int nTnodesCreated;
yaffs_Tnode *freeTnodes;
int nFreeTnodes;
yaffs_TnodeList *allocatedTnodeList;
int isDoingGC;
int nObjectsCreated;
yaffs_Object *freeObjects;
int nFreeObjects;
yaffs_ObjectList *allocatedObjectList;
yaffs_ObjectBucket objectBucket[YAFFS_NOBJECT_BUCKETS];
int nFreeChunks;
int currentDirtyChecker; /* Used to find current dirtiest block */
__u32 *gcCleanupList; /* objects to delete at the end of a GC. */
int nonAggressiveSkip; /* GC state/mode */
/* Statistcs */
int nPageWrites;
int nPageReads;
int nBlockErasures;
int nErasureFailures;
int nGCCopies;
int garbageCollections;
int passiveGarbageCollections;
int nRetriedWrites;
int nRetiredBlocks;
int eccFixed;
int eccUnfixed;
int tagsEccFixed;
int tagsEccUnfixed;
int nDeletions;
int nUnmarkedDeletions;
int hasPendingPrioritisedGCs; /* We think this device might have pending prioritised gcs */
/* Special directories */
yaffs_Object *rootDir;
yaffs_Object *lostNFoundDir;
/* Buffer areas for storing data to recover from write failures TODO
* __u8 bufferedData[YAFFS_CHUNKS_PER_BLOCK][YAFFS_BYTES_PER_CHUNK];
* yaffs_Spare bufferedSpare[YAFFS_CHUNKS_PER_BLOCK];
*/
int bufferedBlock; /* Which block is buffered here? */
int doingBufferedBlockRewrite;
yaffs_ChunkCache *srCache;
int srLastUse;
int cacheHits;
/* Stuff for background deletion and unlinked files.*/
yaffs_Object *unlinkedDir; /* Directory where unlinked and deleted files live. */
yaffs_Object *deletedDir; /* Directory where deleted objects are sent to disappear. */
yaffs_Object *unlinkedDeletion; /* Current file being background deleted.*/
int nDeletedFiles; /* Count of files awaiting deletion;*/
int nUnlinkedFiles; /* Count of unlinked files. */
int nBackgroundDeletions; /* Count of background deletions. */
yaffs_TempBuffer tempBuffer[YAFFS_N_TEMP_BUFFERS];
int maxTemp;
int unmanagedTempAllocations;
int unmanagedTempDeallocations;
/* yaffs2 runtime stuff */
unsigned sequenceNumber; /* Sequence number of currently allocating block */
unsigned oldestDirtySequence;
};
typedef struct yaffs_DeviceStruct yaffs_Device;
/* The static layout of bllock usage etc is stored in the super block header */
typedef struct {
int StructType;
int version;
int checkpointStartBlock;
int checkpointEndBlock;
int startBlock;
int endBlock;
int rfu[100];
} yaffs_SuperBlockHeader;
/* The CheckpointDevice structure holds the device information that changes at runtime and
* must be preserved over unmount/mount cycles.
*/
typedef struct {
int structType;
int nErasedBlocks;
int allocationBlock; /* Current block being allocated off */
__u32 allocationPage;
int nFreeChunks;
int nDeletedFiles; /* Count of files awaiting deletion;*/
int nUnlinkedFiles; /* Count of unlinked files. */
int nBackgroundDeletions; /* Count of background deletions. */
/* yaffs2 runtime stuff */
unsigned sequenceNumber; /* Sequence number of currently allocating block */
unsigned oldestDirtySequence;
} yaffs_CheckpointDevice;
typedef struct {
int structType;
__u32 magic;
__u32 version;
__u32 head;
} yaffs_CheckpointValidity;
/* Function to manipulate block info */
static Y_INLINE yaffs_BlockInfo *yaffs_GetBlockInfo(yaffs_Device * dev, int blk)
{
if (blk < dev->internalStartBlock || blk > dev->internalEndBlock) {
T(YAFFS_TRACE_ERROR,
(TSTR
("**>> yaffs: getBlockInfo block %d is not valid" TENDSTR),
blk));
YBUG();
}
return &dev->blockInfo[blk - dev->internalStartBlock];
}
/*----------------------- YAFFS Functions -----------------------*/
int yaffs_GutsInitialise(yaffs_Device * dev);
void yaffs_Deinitialise(yaffs_Device * dev);
int yaffs_GetNumberOfFreeChunks(yaffs_Device * dev);
int yaffs_RenameObject(yaffs_Object * oldDir, const YCHAR * oldName,
yaffs_Object * newDir, const YCHAR * newName);
int yaffs_Unlink(yaffs_Object * dir, const YCHAR * name);
int yaffs_DeleteFile(yaffs_Object * obj);
int yaffs_GetObjectName(yaffs_Object * obj, YCHAR * name, int buffSize);
int yaffs_GetObjectFileLength(yaffs_Object * obj);
int yaffs_GetObjectInode(yaffs_Object * obj);
unsigned yaffs_GetObjectType(yaffs_Object * obj);
int yaffs_GetObjectLinkCount(yaffs_Object * obj);
int yaffs_SetAttributes(yaffs_Object * obj, struct iattr *attr);
int yaffs_GetAttributes(yaffs_Object * obj, struct iattr *attr);
/* File operations */
int yaffs_ReadDataFromFile(yaffs_Object * obj, __u8 * buffer, loff_t offset,
int nBytes);
int yaffs_WriteDataToFile(yaffs_Object * obj, const __u8 * buffer, loff_t offset,
int nBytes, int writeThrough);
int yaffs_ResizeFile(yaffs_Object * obj, loff_t newSize);
yaffs_Object *yaffs_MknodFile(yaffs_Object * parent, const YCHAR * name,
__u32 mode, __u32 uid, __u32 gid);
int yaffs_FlushFile(yaffs_Object * obj, int updateTime);
/* Flushing and checkpointing */
void yaffs_FlushEntireDeviceCache(yaffs_Device *dev);
int yaffs_CheckpointSave(yaffs_Device *dev);
int yaffs_CheckpointRestore(yaffs_Device *dev);
/* Directory operations */
yaffs_Object *yaffs_MknodDirectory(yaffs_Object * parent, const YCHAR * name,
__u32 mode, __u32 uid, __u32 gid);
yaffs_Object *yaffs_FindObjectByName(yaffs_Object * theDir, const YCHAR * name);
int yaffs_ApplyToDirectoryChildren(yaffs_Object * theDir,
int (*fn) (yaffs_Object *));
yaffs_Object *yaffs_FindObjectByNumber(yaffs_Device * dev, __u32 number);
/* Link operations */
yaffs_Object *yaffs_Link(yaffs_Object * parent, const YCHAR * name,
yaffs_Object * equivalentObject);
yaffs_Object *yaffs_GetEquivalentObject(yaffs_Object * obj);
/* Symlink operations */
yaffs_Object *yaffs_MknodSymLink(yaffs_Object * parent, const YCHAR * name,
__u32 mode, __u32 uid, __u32 gid,
const YCHAR * alias);
YCHAR *yaffs_GetSymlinkAlias(yaffs_Object * obj);
/* Special inodes (fifos, sockets and devices) */
yaffs_Object *yaffs_MknodSpecial(yaffs_Object * parent, const YCHAR * name,
__u32 mode, __u32 uid, __u32 gid, __u32 rdev);
/* Special directories */
yaffs_Object *yaffs_Root(yaffs_Device * dev);
yaffs_Object *yaffs_LostNFound(yaffs_Device * dev);
#ifdef CONFIG_YAFFS_WINCE
/* CONFIG_YAFFS_WINCE special stuff */
void yfsd_WinFileTimeNow(__u32 target[2]);
#endif
/* XXX U-BOOT XXX */
#if 0
#ifndef __KERNEL__
void yaffs_HandleDeferedFree(yaffs_Object * obj);
#endif
#endif
/* Debug dump */
int yaffs_DumpObject(yaffs_Object * obj);
void yaffs_GutsTest(yaffs_Device * dev);
/* A few useful functions */
void yaffs_InitialiseTags(yaffs_ExtendedTags * tags);
void yaffs_DeleteChunk(yaffs_Device * dev, int chunkId, int markNAND, int lyn);
int yaffs_CheckFF(__u8 * buffer, int nBytes);
void yaffs_HandleChunkError(yaffs_Device *dev, yaffs_BlockInfo *bi);
#endif

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#ifndef __YAFFS_MALLOC_H__
/*
* YAFFS: Yet another Flash File System . A NAND-flash specific file system.
*
* Copyright (C) 2002-2007 Aleph One Ltd.
* for Toby Churchill Ltd and Brightstar Engineering
*
* Created by Charles Manning <charles@aleph1.co.uk>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 2.1 as
* published by the Free Software Foundation.
*
* Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL.
*/
/* XXX U-BOOT XXX */
#if 0
#include <stdlib.h>
#endif
void *yaffs_malloc(size_t size);
void yaffs_free(void *ptr);
#endif

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/*
* YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
*
* Copyright (C) 2002-2007 Aleph One Ltd.
* for Toby Churchill Ltd and Brightstar Engineering
*
* Created by Charles Manning <charles@aleph1.co.uk>
*
* 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.
*/
/* XXX U-BOOT XXX */
#include <common.h>
const char *yaffs_mtdif_c_version =
"$Id: yaffs_mtdif.c,v 1.19 2007/02/14 01:09:06 wookey Exp $";
#include "yportenv.h"
#include "yaffs_mtdif.h"
#include "linux/mtd/mtd.h"
#include "linux/types.h"
#include "linux/time.h"
#include "linux/mtd/nand.h"
#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,18))
static struct nand_oobinfo yaffs_oobinfo = {
.useecc = 1,
.eccbytes = 6,
.eccpos = {8, 9, 10, 13, 14, 15}
};
static struct nand_oobinfo yaffs_noeccinfo = {
.useecc = 0,
};
#endif
#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17))
static inline void translate_spare2oob(const yaffs_Spare *spare, __u8 *oob)
{
oob[0] = spare->tagByte0;
oob[1] = spare->tagByte1;
oob[2] = spare->tagByte2;
oob[3] = spare->tagByte3;
oob[4] = spare->tagByte4;
oob[5] = spare->tagByte5 & 0x3f;
oob[5] |= spare->blockStatus == 'Y' ? 0: 0x80;
oob[5] |= spare->pageStatus == 0 ? 0: 0x40;
oob[6] = spare->tagByte6;
oob[7] = spare->tagByte7;
}
static inline void translate_oob2spare(yaffs_Spare *spare, __u8 *oob)
{
struct yaffs_NANDSpare *nspare = (struct yaffs_NANDSpare *)spare;
spare->tagByte0 = oob[0];
spare->tagByte1 = oob[1];
spare->tagByte2 = oob[2];
spare->tagByte3 = oob[3];
spare->tagByte4 = oob[4];
spare->tagByte5 = oob[5] == 0xff ? 0xff : oob[5] & 0x3f;
spare->blockStatus = oob[5] & 0x80 ? 0xff : 'Y';
spare->pageStatus = oob[5] & 0x40 ? 0xff : 0;
spare->ecc1[0] = spare->ecc1[1] = spare->ecc1[2] = 0xff;
spare->tagByte6 = oob[6];
spare->tagByte7 = oob[7];
spare->ecc2[0] = spare->ecc2[1] = spare->ecc2[2] = 0xff;
nspare->eccres1 = nspare->eccres2 = 0; /* FIXME */
}
#endif
int nandmtd_WriteChunkToNAND(yaffs_Device * dev, int chunkInNAND,
const __u8 * data, const yaffs_Spare * spare)
{
struct mtd_info *mtd = (struct mtd_info *)(dev->genericDevice);
#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17))
struct mtd_oob_ops ops;
#endif
size_t dummy;
int retval = 0;
loff_t addr = ((loff_t) chunkInNAND) * dev->nDataBytesPerChunk;
#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17))
__u8 spareAsBytes[8]; /* OOB */
if (data && !spare)
retval = mtd->write(mtd, addr, dev->nDataBytesPerChunk,
&dummy, data);
else if (spare) {
if (dev->useNANDECC) {
translate_spare2oob(spare, spareAsBytes);
ops.mode = MTD_OOB_AUTO;
ops.ooblen = 8; /* temp hack */
} else {
ops.mode = MTD_OOB_RAW;
ops.ooblen = YAFFS_BYTES_PER_SPARE;
}
ops.len = data ? dev->nDataBytesPerChunk : ops.ooblen;
ops.datbuf = (u8 *)data;
ops.ooboffs = 0;
ops.oobbuf = spareAsBytes;
retval = mtd->write_oob(mtd, addr, &ops);
}
#else
__u8 *spareAsBytes = (__u8 *) spare;
if (data && spare) {
if (dev->useNANDECC)
retval =
mtd->write_ecc(mtd, addr, dev->nDataBytesPerChunk,
&dummy, data, spareAsBytes,
&yaffs_oobinfo);
else
retval =
mtd->write_ecc(mtd, addr, dev->nDataBytesPerChunk,
&dummy, data, spareAsBytes,
&yaffs_noeccinfo);
} else {
if (data)
retval =
mtd->write(mtd, addr, dev->nDataBytesPerChunk, &dummy,
data);
if (spare)
retval =
mtd->write_oob(mtd, addr, YAFFS_BYTES_PER_SPARE,
&dummy, spareAsBytes);
}
#endif
if (retval == 0)
return YAFFS_OK;
else
return YAFFS_FAIL;
}
int nandmtd_ReadChunkFromNAND(yaffs_Device * dev, int chunkInNAND, __u8 * data,
yaffs_Spare * spare)
{
struct mtd_info *mtd = (struct mtd_info *)(dev->genericDevice);
#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17))
struct mtd_oob_ops ops;
#endif
size_t dummy;
int retval = 0;
loff_t addr = ((loff_t) chunkInNAND) * dev->nDataBytesPerChunk;
#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17))
__u8 spareAsBytes[8]; /* OOB */
if (data && !spare)
retval = mtd->read(mtd, addr, dev->nDataBytesPerChunk,
&dummy, data);
else if (spare) {
if (dev->useNANDECC) {
ops.mode = MTD_OOB_AUTO;
ops.ooblen = 8; /* temp hack */
} else {
ops.mode = MTD_OOB_RAW;
ops.ooblen = YAFFS_BYTES_PER_SPARE;
}
ops.len = data ? dev->nDataBytesPerChunk : ops.ooblen;
ops.datbuf = data;
ops.ooboffs = 0;
ops.oobbuf = spareAsBytes;
retval = mtd->read_oob(mtd, addr, &ops);
if (dev->useNANDECC)
translate_oob2spare(spare, spareAsBytes);
}
#else
__u8 *spareAsBytes = (__u8 *) spare;
if (data && spare) {
if (dev->useNANDECC) {
/* Careful, this call adds 2 ints */
/* to the end of the spare data. Calling function */
/* should allocate enough memory for spare, */
/* i.e. [YAFFS_BYTES_PER_SPARE+2*sizeof(int)]. */
retval =
mtd->read_ecc(mtd, addr, dev->nDataBytesPerChunk,
&dummy, data, spareAsBytes,
&yaffs_oobinfo);
} else {
retval =
mtd->read_ecc(mtd, addr, dev->nDataBytesPerChunk,
&dummy, data, spareAsBytes,
&yaffs_noeccinfo);
}
} else {
if (data)
retval =
mtd->read(mtd, addr, dev->nDataBytesPerChunk, &dummy,
data);
if (spare)
retval =
mtd->read_oob(mtd, addr, YAFFS_BYTES_PER_SPARE,
&dummy, spareAsBytes);
}
#endif
if (retval == 0)
return YAFFS_OK;
else
return YAFFS_FAIL;
}
int nandmtd_EraseBlockInNAND(yaffs_Device * dev, int blockNumber)
{
struct mtd_info *mtd = (struct mtd_info *)(dev->genericDevice);
__u32 addr =
((loff_t) blockNumber) * dev->nDataBytesPerChunk
* dev->nChunksPerBlock;
struct erase_info ei;
int retval = 0;
ei.mtd = mtd;
ei.addr = addr;
ei.len = dev->nDataBytesPerChunk * dev->nChunksPerBlock;
ei.time = 1000;
ei.retries = 2;
ei.callback = NULL;
ei.priv = (u_long) dev;
/* Todo finish off the ei if required */
/* XXX U-BOOT XXX */
#if 0
sema_init(&dev->sem, 0);
#endif
retval = mtd->erase(mtd, &ei);
if (retval == 0)
return YAFFS_OK;
else
return YAFFS_FAIL;
}
int nandmtd_InitialiseNAND(yaffs_Device * dev)
{
return YAFFS_OK;
}

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/*
* YAFFS: Yet another Flash File System . A NAND-flash specific file system.
*
* Copyright (C) 2002-2007 Aleph One Ltd.
* for Toby Churchill Ltd and Brightstar Engineering
*
* Created by Charles Manning <charles@aleph1.co.uk>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 2.1 as
* published by the Free Software Foundation.
*
* Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL.
*/
#ifndef __YAFFS_MTDIF_H__
#define __YAFFS_MTDIF_H__
#include "yaffs_guts.h"
int nandmtd_WriteChunkToNAND(yaffs_Device * dev, int chunkInNAND,
const __u8 * data, const yaffs_Spare * spare);
int nandmtd_ReadChunkFromNAND(yaffs_Device * dev, int chunkInNAND, __u8 * data,
yaffs_Spare * spare);
int nandmtd_EraseBlockInNAND(yaffs_Device * dev, int blockNumber);
int nandmtd_InitialiseNAND(yaffs_Device * dev);
#endif

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/*
* YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
*
* Copyright (C) 2002-2007 Aleph One Ltd.
* for Toby Churchill Ltd and Brightstar Engineering
*
* Created by Charles Manning <charles@aleph1.co.uk>
*
* 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.
*/
/* mtd interface for YAFFS2 */
/* XXX U-BOOT XXX */
#include <common.h>
#include "asm/errno.h"
const char *yaffs_mtdif2_c_version =
"$Id: yaffs_mtdif2.c,v 1.17 2007/02/14 01:09:06 wookey Exp $";
#include "yportenv.h"
#include "yaffs_mtdif2.h"
#include "linux/mtd/mtd.h"
#include "linux/types.h"
#include "linux/time.h"
#include "yaffs_packedtags2.h"
int nandmtd2_WriteChunkWithTagsToNAND(yaffs_Device * dev, int chunkInNAND,
const __u8 * data,
const yaffs_ExtendedTags * tags)
{
struct mtd_info *mtd = (struct mtd_info *)(dev->genericDevice);
#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17))
struct mtd_oob_ops ops;
#else
size_t dummy;
#endif
int retval = 0;
loff_t addr = ((loff_t) chunkInNAND) * dev->nDataBytesPerChunk;
yaffs_PackedTags2 pt;
T(YAFFS_TRACE_MTD,
(TSTR
("nandmtd2_WriteChunkWithTagsToNAND chunk %d data %p tags %p"
TENDSTR), chunkInNAND, data, tags));
#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17))
if (tags)
yaffs_PackTags2(&pt, tags);
else
BUG(); /* both tags and data should always be present */
if (data) {
ops.mode = MTD_OOB_AUTO;
ops.ooblen = sizeof(pt);
ops.len = dev->nDataBytesPerChunk;
ops.ooboffs = 0;
ops.datbuf = (__u8 *)data;
ops.oobbuf = (void *)&pt;
retval = mtd->write_oob(mtd, addr, &ops);
} else
BUG(); /* both tags and data should always be present */
#else
if (tags) {
yaffs_PackTags2(&pt, tags);
}
if (data && tags) {
if (dev->useNANDECC)
retval =
mtd->write_ecc(mtd, addr, dev->nDataBytesPerChunk,
&dummy, data, (__u8 *) & pt, NULL);
else
retval =
mtd->write_ecc(mtd, addr, dev->nDataBytesPerChunk,
&dummy, data, (__u8 *) & pt, NULL);
} else {
if (data)
retval =
mtd->write(mtd, addr, dev->nDataBytesPerChunk, &dummy,
data);
if (tags)
retval =
mtd->write_oob(mtd, addr, mtd->oobsize, &dummy,
(__u8 *) & pt);
}
#endif
if (retval == 0)
return YAFFS_OK;
else
return YAFFS_FAIL;
}
int nandmtd2_ReadChunkWithTagsFromNAND(yaffs_Device * dev, int chunkInNAND,
__u8 * data, yaffs_ExtendedTags * tags)
{
struct mtd_info *mtd = (struct mtd_info *)(dev->genericDevice);
#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17))
struct mtd_oob_ops ops;
#endif
size_t dummy;
int retval = 0;
loff_t addr = ((loff_t) chunkInNAND) * dev->nDataBytesPerChunk;
yaffs_PackedTags2 pt;
T(YAFFS_TRACE_MTD,
(TSTR
("nandmtd2_ReadChunkWithTagsFromNAND chunk %d data %p tags %p"
TENDSTR), chunkInNAND, data, tags));
#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17))
if (data && !tags)
retval = mtd->read(mtd, addr, dev->nDataBytesPerChunk,
&dummy, data);
else if (tags) {
ops.mode = MTD_OOB_AUTO;
ops.ooblen = sizeof(pt);
ops.len = data ? dev->nDataBytesPerChunk : sizeof(pt);
ops.ooboffs = 0;
ops.datbuf = data;
ops.oobbuf = dev->spareBuffer;
retval = mtd->read_oob(mtd, addr, &ops);
}
#else
if (data && tags) {
if (dev->useNANDECC) {
retval =
mtd->read_ecc(mtd, addr, dev->nDataBytesPerChunk,
&dummy, data, dev->spareBuffer,
NULL);
} else {
retval =
mtd->read_ecc(mtd, addr, dev->nDataBytesPerChunk,
&dummy, data, dev->spareBuffer,
NULL);
}
} else {
if (data)
retval =
mtd->read(mtd, addr, dev->nDataBytesPerChunk, &dummy,
data);
if (tags)
retval =
mtd->read_oob(mtd, addr, mtd->oobsize, &dummy,
dev->spareBuffer);
}
#endif
memcpy(&pt, dev->spareBuffer, sizeof(pt));
if (tags)
yaffs_UnpackTags2(tags, &pt);
if(tags && retval == -EBADMSG && tags->eccResult == YAFFS_ECC_RESULT_NO_ERROR)
tags->eccResult = YAFFS_ECC_RESULT_UNFIXED;
if (retval == 0)
return YAFFS_OK;
else
return YAFFS_FAIL;
}
int nandmtd2_MarkNANDBlockBad(struct yaffs_DeviceStruct *dev, int blockNo)
{
struct mtd_info *mtd = (struct mtd_info *)(dev->genericDevice);
int retval;
T(YAFFS_TRACE_MTD,
(TSTR("nandmtd2_MarkNANDBlockBad %d" TENDSTR), blockNo));
retval =
mtd->block_markbad(mtd,
blockNo * dev->nChunksPerBlock *
dev->nDataBytesPerChunk);
if (retval == 0)
return YAFFS_OK;
else
return YAFFS_FAIL;
}
int nandmtd2_QueryNANDBlock(struct yaffs_DeviceStruct *dev, int blockNo,
yaffs_BlockState * state, int *sequenceNumber)
{
struct mtd_info *mtd = (struct mtd_info *)(dev->genericDevice);
int retval;
T(YAFFS_TRACE_MTD,
(TSTR("nandmtd2_QueryNANDBlock %d" TENDSTR), blockNo));
retval =
mtd->block_isbad(mtd,
blockNo * dev->nChunksPerBlock *
dev->nDataBytesPerChunk);
if (retval) {
T(YAFFS_TRACE_MTD, (TSTR("block is bad" TENDSTR)));
*state = YAFFS_BLOCK_STATE_DEAD;
*sequenceNumber = 0;
} else {
yaffs_ExtendedTags t;
nandmtd2_ReadChunkWithTagsFromNAND(dev,
blockNo *
dev->nChunksPerBlock, NULL,
&t);
if (t.chunkUsed) {
*sequenceNumber = t.sequenceNumber;
*state = YAFFS_BLOCK_STATE_NEEDS_SCANNING;
} else {
*sequenceNumber = 0;
*state = YAFFS_BLOCK_STATE_EMPTY;
}
}
T(YAFFS_TRACE_MTD,
(TSTR("block is bad seq %d state %d" TENDSTR), *sequenceNumber,
*state));
if (retval == 0)
return YAFFS_OK;
else
return YAFFS_FAIL;
}

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/*
* YAFFS: Yet another Flash File System . A NAND-flash specific file system.
*
* Copyright (C) 2002-2007 Aleph One Ltd.
* for Toby Churchill Ltd and Brightstar Engineering
*
* Created by Charles Manning <charles@aleph1.co.uk>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 2.1 as
* published by the Free Software Foundation.
*
* Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL.
*/
#ifndef __YAFFS_MTDIF2_H__
#define __YAFFS_MTDIF2_H__
#include "yaffs_guts.h"
int nandmtd2_WriteChunkWithTagsToNAND(yaffs_Device * dev, int chunkInNAND,
const __u8 * data,
const yaffs_ExtendedTags * tags);
int nandmtd2_ReadChunkWithTagsFromNAND(yaffs_Device * dev, int chunkInNAND,
__u8 * data, yaffs_ExtendedTags * tags);
int nandmtd2_MarkNANDBlockBad(struct yaffs_DeviceStruct *dev, int blockNo);
int nandmtd2_QueryNANDBlock(struct yaffs_DeviceStruct *dev, int blockNo,
yaffs_BlockState * state, int *sequenceNumber);
#endif

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/*
* YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
*
* Copyright (C) 2002-2007 Aleph One Ltd.
* for Toby Churchill Ltd and Brightstar Engineering
*
* Created by Charles Manning <charles@aleph1.co.uk>
*
* 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.
*/
/* XXX U-BOOT XXX */
#include <common.h>
const char *yaffs_nand_c_version =
"$Id: yaffs_nand.c,v 1.7 2007/02/14 01:09:06 wookey Exp $";
#include "yaffs_nand.h"
#include "yaffs_tagscompat.h"
#include "yaffs_tagsvalidity.h"
int yaffs_ReadChunkWithTagsFromNAND(yaffs_Device * dev, int chunkInNAND,
__u8 * buffer,
yaffs_ExtendedTags * tags)
{
int result;
yaffs_ExtendedTags localTags;
int realignedChunkInNAND = chunkInNAND - dev->chunkOffset;
/* If there are no tags provided, use local tags to get prioritised gc working */
if(!tags)
tags = &localTags;
if (dev->readChunkWithTagsFromNAND)
result = dev->readChunkWithTagsFromNAND(dev, realignedChunkInNAND, buffer,
tags);
else
result = yaffs_TagsCompatabilityReadChunkWithTagsFromNAND(dev,
realignedChunkInNAND,
buffer,
tags);
if(tags &&
tags->eccResult > YAFFS_ECC_RESULT_NO_ERROR){
yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev, chunkInNAND/dev->nChunksPerBlock);
yaffs_HandleChunkError(dev,bi);
}
return result;
}
int yaffs_WriteChunkWithTagsToNAND(yaffs_Device * dev,
int chunkInNAND,
const __u8 * buffer,
yaffs_ExtendedTags * tags)
{
chunkInNAND -= dev->chunkOffset;
if (tags) {
tags->sequenceNumber = dev->sequenceNumber;
tags->chunkUsed = 1;
if (!yaffs_ValidateTags(tags)) {
T(YAFFS_TRACE_ERROR,
(TSTR("Writing uninitialised tags" TENDSTR)));
YBUG();
}
T(YAFFS_TRACE_WRITE,
(TSTR("Writing chunk %d tags %d %d" TENDSTR), chunkInNAND,
tags->objectId, tags->chunkId));
} else {
T(YAFFS_TRACE_ERROR, (TSTR("Writing with no tags" TENDSTR)));
YBUG();
}
if (dev->writeChunkWithTagsToNAND)
return dev->writeChunkWithTagsToNAND(dev, chunkInNAND, buffer,
tags);
else
return yaffs_TagsCompatabilityWriteChunkWithTagsToNAND(dev,
chunkInNAND,
buffer,
tags);
}
int yaffs_MarkBlockBad(yaffs_Device * dev, int blockNo)
{
blockNo -= dev->blockOffset;
;
if (dev->markNANDBlockBad)
return dev->markNANDBlockBad(dev, blockNo);
else
return yaffs_TagsCompatabilityMarkNANDBlockBad(dev, blockNo);
}
int yaffs_QueryInitialBlockState(yaffs_Device * dev,
int blockNo,
yaffs_BlockState * state,
unsigned *sequenceNumber)
{
blockNo -= dev->blockOffset;
if (dev->queryNANDBlock)
return dev->queryNANDBlock(dev, blockNo, state, sequenceNumber);
else
return yaffs_TagsCompatabilityQueryNANDBlock(dev, blockNo,
state,
sequenceNumber);
}
int yaffs_EraseBlockInNAND(struct yaffs_DeviceStruct *dev,
int blockInNAND)
{
int result;
blockInNAND -= dev->blockOffset;
dev->nBlockErasures++;
result = dev->eraseBlockInNAND(dev, blockInNAND);
return result;
}
int yaffs_InitialiseNAND(struct yaffs_DeviceStruct *dev)
{
return dev->initialiseNAND(dev);
}

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/*
* YAFFS: Yet another Flash File System . A NAND-flash specific file system.
*
* Copyright (C) 2002-2007 Aleph One Ltd.
* for Toby Churchill Ltd and Brightstar Engineering
*
* Created by Charles Manning <charles@aleph1.co.uk>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 2.1 as
* published by the Free Software Foundation.
*
* Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL.
*/
#ifndef __YAFFS_NAND_H__
#define __YAFFS_NAND_H__
#include "yaffs_guts.h"
int yaffs_ReadChunkWithTagsFromNAND(yaffs_Device * dev, int chunkInNAND,
__u8 * buffer,
yaffs_ExtendedTags * tags);
int yaffs_WriteChunkWithTagsToNAND(yaffs_Device * dev,
int chunkInNAND,
const __u8 * buffer,
yaffs_ExtendedTags * tags);
int yaffs_MarkBlockBad(yaffs_Device * dev, int blockNo);
int yaffs_QueryInitialBlockState(yaffs_Device * dev,
int blockNo,
yaffs_BlockState * state,
unsigned *sequenceNumber);
int yaffs_EraseBlockInNAND(struct yaffs_DeviceStruct *dev,
int blockInNAND);
int yaffs_InitialiseNAND(struct yaffs_DeviceStruct *dev);
#endif

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/*
* YAFFS: Yet another Flash File System . A NAND-flash specific file system.
*
* Copyright (C) 2002-2007 Aleph One Ltd.
* for Toby Churchill Ltd and Brightstar Engineering
*
* Created by Charles Manning <charles@aleph1.co.uk>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 2.1 as
* published by the Free Software Foundation.
*
* Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL.
*/
/* Interface to emulated NAND functions (2k page size) */
#ifndef __YAFFS_NANDEMUL2K_H__
#define __YAFFS_NANDEMUL2K_H__
#include "yaffs_guts.h"
int nandemul2k_WriteChunkWithTagsToNAND(struct yaffs_DeviceStruct *dev,
int chunkInNAND, const __u8 * data,
yaffs_ExtendedTags * tags);
int nandemul2k_ReadChunkWithTagsFromNAND(struct yaffs_DeviceStruct *dev,
int chunkInNAND, __u8 * data,
yaffs_ExtendedTags * tags);
int nandemul2k_MarkNANDBlockBad(struct yaffs_DeviceStruct *dev, int blockNo);
int nandemul2k_QueryNANDBlock(struct yaffs_DeviceStruct *dev, int blockNo,
yaffs_BlockState * state, int *sequenceNumber);
int nandemul2k_EraseBlockInNAND(struct yaffs_DeviceStruct *dev,
int blockInNAND);
int nandemul2k_InitialiseNAND(struct yaffs_DeviceStruct *dev);
int nandemul2k_GetBytesPerChunk(void);
int nandemul2k_GetChunksPerBlock(void);
int nandemul2k_GetNumberOfBlocks(void);
#endif

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/*
* YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
*
* Copyright (C) 2002-2007 Aleph One Ltd.
* for Toby Churchill Ltd and Brightstar Engineering
*
* Created by Charles Manning <charles@aleph1.co.uk>
*
* 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.
*/
/* XXX U-BOOT XXX */
#include <common.h>
#include "yaffs_packedtags1.h"
#include "yportenv.h"
void yaffs_PackTags1(yaffs_PackedTags1 * pt, const yaffs_ExtendedTags * t)
{
pt->chunkId = t->chunkId;
pt->serialNumber = t->serialNumber;
pt->byteCount = t->byteCount;
pt->objectId = t->objectId;
pt->ecc = 0;
pt->deleted = (t->chunkDeleted) ? 0 : 1;
pt->unusedStuff = 0;
pt->shouldBeFF = 0xFFFFFFFF;
}
void yaffs_UnpackTags1(yaffs_ExtendedTags * t, const yaffs_PackedTags1 * pt)
{
static const __u8 allFF[] =
{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
0xff };
if (memcmp(allFF, pt, sizeof(yaffs_PackedTags1))) {
t->blockBad = 0;
if (pt->shouldBeFF != 0xFFFFFFFF) {
t->blockBad = 1;
}
t->chunkUsed = 1;
t->objectId = pt->objectId;
t->chunkId = pt->chunkId;
t->byteCount = pt->byteCount;
t->eccResult = YAFFS_ECC_RESULT_NO_ERROR;
t->chunkDeleted = (pt->deleted) ? 0 : 1;
t->serialNumber = pt->serialNumber;
} else {
memset(t, 0, sizeof(yaffs_ExtendedTags));
}
}

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/*
* YAFFS: Yet another Flash File System . A NAND-flash specific file system.
*
* Copyright (C) 2002-2007 Aleph One Ltd.
* for Toby Churchill Ltd and Brightstar Engineering
*
* Created by Charles Manning <charles@aleph1.co.uk>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 2.1 as
* published by the Free Software Foundation.
*
* Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL.
*/
/* This is used to pack YAFFS1 tags, not YAFFS2 tags. */
#ifndef __YAFFS_PACKEDTAGS1_H__
#define __YAFFS_PACKEDTAGS1_H__
#include "yaffs_guts.h"
typedef struct {
unsigned chunkId:20;
unsigned serialNumber:2;
unsigned byteCount:10;
unsigned objectId:18;
unsigned ecc:12;
unsigned deleted:1;
unsigned unusedStuff:1;
unsigned shouldBeFF;
} yaffs_PackedTags1;
void yaffs_PackTags1(yaffs_PackedTags1 * pt, const yaffs_ExtendedTags * t);
void yaffs_UnpackTags1(yaffs_ExtendedTags * t, const yaffs_PackedTags1 * pt);
#endif

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/*
* YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
*
* Copyright (C) 2002-2007 Aleph One Ltd.
* for Toby Churchill Ltd and Brightstar Engineering
*
* Created by Charles Manning <charles@aleph1.co.uk>
*
* 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.
*/
/* XXX U-BOOT XXX */
#include <common.h>
#include "yaffs_packedtags2.h"
#include "yportenv.h"
#include "yaffs_tagsvalidity.h"
/* This code packs a set of extended tags into a binary structure for
* NAND storage
*/
/* Some of the information is "extra" struff which can be packed in to
* speed scanning
* This is defined by having the EXTRA_HEADER_INFO_FLAG set.
*/
/* Extra flags applied to chunkId */
#define EXTRA_HEADER_INFO_FLAG 0x80000000
#define EXTRA_SHRINK_FLAG 0x40000000
#define EXTRA_SHADOWS_FLAG 0x20000000
#define EXTRA_SPARE_FLAGS 0x10000000
#define ALL_EXTRA_FLAGS 0xF0000000
/* Also, the top 4 bits of the object Id are set to the object type. */
#define EXTRA_OBJECT_TYPE_SHIFT (28)
#define EXTRA_OBJECT_TYPE_MASK ((0x0F) << EXTRA_OBJECT_TYPE_SHIFT)
static void yaffs_DumpPackedTags2(const yaffs_PackedTags2 * pt)
{
T(YAFFS_TRACE_MTD,
(TSTR("packed tags obj %d chunk %d byte %d seq %d" TENDSTR),
pt->t.objectId, pt->t.chunkId, pt->t.byteCount,
pt->t.sequenceNumber));
}
static void yaffs_DumpTags2(const yaffs_ExtendedTags * t)
{
T(YAFFS_TRACE_MTD,
(TSTR
("ext.tags eccres %d blkbad %d chused %d obj %d chunk%d byte "
"%d del %d ser %d seq %d"
TENDSTR), t->eccResult, t->blockBad, t->chunkUsed, t->objectId,
t->chunkId, t->byteCount, t->chunkDeleted, t->serialNumber,
t->sequenceNumber));
}
void yaffs_PackTags2(yaffs_PackedTags2 * pt, const yaffs_ExtendedTags * t)
{
pt->t.chunkId = t->chunkId;
pt->t.sequenceNumber = t->sequenceNumber;
pt->t.byteCount = t->byteCount;
pt->t.objectId = t->objectId;
if (t->chunkId == 0 && t->extraHeaderInfoAvailable) {
/* Store the extra header info instead */
/* We save the parent object in the chunkId */
pt->t.chunkId = EXTRA_HEADER_INFO_FLAG
| t->extraParentObjectId;
if (t->extraIsShrinkHeader) {
pt->t.chunkId |= EXTRA_SHRINK_FLAG;
}
if (t->extraShadows) {
pt->t.chunkId |= EXTRA_SHADOWS_FLAG;
}
pt->t.objectId &= ~EXTRA_OBJECT_TYPE_MASK;
pt->t.objectId |=
(t->extraObjectType << EXTRA_OBJECT_TYPE_SHIFT);
if (t->extraObjectType == YAFFS_OBJECT_TYPE_HARDLINK) {
pt->t.byteCount = t->extraEquivalentObjectId;
} else if (t->extraObjectType == YAFFS_OBJECT_TYPE_FILE) {
pt->t.byteCount = t->extraFileLength;
} else {
pt->t.byteCount = 0;
}
}
yaffs_DumpPackedTags2(pt);
yaffs_DumpTags2(t);
#ifndef YAFFS_IGNORE_TAGS_ECC
{
yaffs_ECCCalculateOther((unsigned char *)&pt->t,
sizeof(yaffs_PackedTags2TagsPart),
&pt->ecc);
}
#endif
}
void yaffs_UnpackTags2(yaffs_ExtendedTags * t, yaffs_PackedTags2 * pt)
{
memset(t, 0, sizeof(yaffs_ExtendedTags));
yaffs_InitialiseTags(t);
if (pt->t.sequenceNumber != 0xFFFFFFFF) {
/* Page is in use */
#ifdef YAFFS_IGNORE_TAGS_ECC
{
t->eccResult = YAFFS_ECC_RESULT_NO_ERROR;
}
#else
{
yaffs_ECCOther ecc;
int result;
yaffs_ECCCalculateOther((unsigned char *)&pt->t,
sizeof
(yaffs_PackedTags2TagsPart),
&ecc);
result =
yaffs_ECCCorrectOther((unsigned char *)&pt->t,
sizeof
(yaffs_PackedTags2TagsPart),
&pt->ecc, &ecc);
switch(result){
case 0:
t->eccResult = YAFFS_ECC_RESULT_NO_ERROR;
break;
case 1:
t->eccResult = YAFFS_ECC_RESULT_FIXED;
break;
case -1:
t->eccResult = YAFFS_ECC_RESULT_UNFIXED;
break;
default:
t->eccResult = YAFFS_ECC_RESULT_UNKNOWN;
}
}
#endif
t->blockBad = 0;
t->chunkUsed = 1;
t->objectId = pt->t.objectId;
t->chunkId = pt->t.chunkId;
t->byteCount = pt->t.byteCount;
t->chunkDeleted = 0;
t->serialNumber = 0;
t->sequenceNumber = pt->t.sequenceNumber;
/* Do extra header info stuff */
if (pt->t.chunkId & EXTRA_HEADER_INFO_FLAG) {
t->chunkId = 0;
t->byteCount = 0;
t->extraHeaderInfoAvailable = 1;
t->extraParentObjectId =
pt->t.chunkId & (~(ALL_EXTRA_FLAGS));
t->extraIsShrinkHeader =
(pt->t.chunkId & EXTRA_SHRINK_FLAG) ? 1 : 0;
t->extraShadows =
(pt->t.chunkId & EXTRA_SHADOWS_FLAG) ? 1 : 0;
t->extraObjectType =
pt->t.objectId >> EXTRA_OBJECT_TYPE_SHIFT;
t->objectId &= ~EXTRA_OBJECT_TYPE_MASK;
if (t->extraObjectType == YAFFS_OBJECT_TYPE_HARDLINK) {
t->extraEquivalentObjectId = pt->t.byteCount;
} else {
t->extraFileLength = pt->t.byteCount;
}
}
}
yaffs_DumpPackedTags2(pt);
yaffs_DumpTags2(t);
}

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/*
* YAFFS: Yet another Flash File System . A NAND-flash specific file system.
*
* Copyright (C) 2002-2007 Aleph One Ltd.
* for Toby Churchill Ltd and Brightstar Engineering
*
* Created by Charles Manning <charles@aleph1.co.uk>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 2.1 as
* published by the Free Software Foundation.
*
* Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL.
*/
/* This is used to pack YAFFS2 tags, not YAFFS1tags. */
#ifndef __YAFFS_PACKEDTAGS2_H__
#define __YAFFS_PACKEDTAGS2_H__
#include "yaffs_guts.h"
#include "yaffs_ecc.h"
typedef struct {
unsigned sequenceNumber;
unsigned objectId;
unsigned chunkId;
unsigned byteCount;
} yaffs_PackedTags2TagsPart;
typedef struct {
yaffs_PackedTags2TagsPart t;
yaffs_ECCOther ecc;
} yaffs_PackedTags2;
void yaffs_PackTags2(yaffs_PackedTags2 * pt, const yaffs_ExtendedTags * t);
void yaffs_UnpackTags2(yaffs_ExtendedTags * t, yaffs_PackedTags2 * pt);
#endif

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/*
* Copyright (c) 1992, 1993
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
/* XXX U-BOOT XXX */
#include <common.h>
#include "yportenv.h"
//#include <linux/string.h>
/*
* Qsort routine from Bentley & McIlroy's "Engineering a Sort Function".
*/
#define swapcode(TYPE, parmi, parmj, n) { \
long i = (n) / sizeof (TYPE); \
register TYPE *pi = (TYPE *) (parmi); \
register TYPE *pj = (TYPE *) (parmj); \
do { \
register TYPE t = *pi; \
*pi++ = *pj; \
*pj++ = t; \
} while (--i > 0); \
}
#define SWAPINIT(a, es) swaptype = ((char *)a - (char *)0) % sizeof(long) || \
es % sizeof(long) ? 2 : es == sizeof(long)? 0 : 1;
static __inline void
swapfunc(char *a, char *b, int n, int swaptype)
{
if (swaptype <= 1)
swapcode(long, a, b, n)
else
swapcode(char, a, b, n)
}
#define swap(a, b) \
if (swaptype == 0) { \
long t = *(long *)(a); \
*(long *)(a) = *(long *)(b); \
*(long *)(b) = t; \
} else \
swapfunc(a, b, es, swaptype)
#define vecswap(a, b, n) if ((n) > 0) swapfunc(a, b, n, swaptype)
static __inline char *
med3(char *a, char *b, char *c, int (*cmp)(const void *, const void *))
{
return cmp(a, b) < 0 ?
(cmp(b, c) < 0 ? b : (cmp(a, c) < 0 ? c : a ))
:(cmp(b, c) > 0 ? b : (cmp(a, c) < 0 ? a : c ));
}
#ifndef min
#define min(a,b) (((a) < (b)) ? (a) : (b))
#endif
void
yaffs_qsort(void *aa, size_t n, size_t es,
int (*cmp)(const void *, const void *))
{
char *pa, *pb, *pc, *pd, *pl, *pm, *pn;
int d, r, swaptype, swap_cnt;
register char *a = aa;
loop: SWAPINIT(a, es);
swap_cnt = 0;
if (n < 7) {
for (pm = (char *)a + es; pm < (char *) a + n * es; pm += es)
for (pl = pm; pl > (char *) a && cmp(pl - es, pl) > 0;
pl -= es)
swap(pl, pl - es);
return;
}
pm = (char *)a + (n / 2) * es;
if (n > 7) {
pl = (char *)a;
pn = (char *)a + (n - 1) * es;
if (n > 40) {
d = (n / 8) * es;
pl = med3(pl, pl + d, pl + 2 * d, cmp);
pm = med3(pm - d, pm, pm + d, cmp);
pn = med3(pn - 2 * d, pn - d, pn, cmp);
}
pm = med3(pl, pm, pn, cmp);
}
swap(a, pm);
pa = pb = (char *)a + es;
pc = pd = (char *)a + (n - 1) * es;
for (;;) {
while (pb <= pc && (r = cmp(pb, a)) <= 0) {
if (r == 0) {
swap_cnt = 1;
swap(pa, pb);
pa += es;
}
pb += es;
}
while (pb <= pc && (r = cmp(pc, a)) >= 0) {
if (r == 0) {
swap_cnt = 1;
swap(pc, pd);
pd -= es;
}
pc -= es;
}
if (pb > pc)
break;
swap(pb, pc);
swap_cnt = 1;
pb += es;
pc -= es;
}
if (swap_cnt == 0) { /* Switch to insertion sort */
for (pm = (char *) a + es; pm < (char *) a + n * es; pm += es)
for (pl = pm; pl > (char *) a && cmp(pl - es, pl) > 0;
pl -= es)
swap(pl, pl - es);
return;
}
pn = (char *)a + n * es;
r = min(pa - (char *)a, pb - pa);
vecswap(a, pb - r, r);
r = min((long)(pd - pc), (long)(pn - pd - es));
vecswap(pb, pn - r, r);
if ((r = pb - pa) > es)
yaffs_qsort(a, r / es, es, cmp);
if ((r = pd - pc) > es) {
/* Iterate rather than recurse to save stack space */
a = pn - r;
n = r / es;
goto loop;
}
/* yaffs_qsort(pn - r, r / es, es, cmp);*/
}

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/*
* YAFFS: Yet another Flash File System . A NAND-flash specific file system.
*
* Copyright (C) 2002-2007 Aleph One Ltd.
* for Toby Churchill Ltd and Brightstar Engineering
*
* Created by Charles Manning <charles@aleph1.co.uk>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 2.1 as
* published by the Free Software Foundation.
*
* Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL.
*/
#ifndef __YAFFS_QSORT_H__
#define __YAFFS_QSORT_H__
extern void yaffs_qsort (void *const base, size_t total_elems, size_t size,
int (*cmp)(const void *, const void *));
#endif

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/*
* YAFFS: Yet another Flash File System . A NAND-flash specific file system.
*
* Copyright (C) 2002-2007 Aleph One Ltd.
* for Toby Churchill Ltd and Brightstar Engineering
*
* Created by Charles Manning <charles@aleph1.co.uk>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 2.1 as
* published by the Free Software Foundation.
*
* Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL.
*/
/*
* yaffs_ramdisk.h: yaffs ram disk component
*/
#ifndef __YAFFS_RAMDISK_H__
#define __YAFFS_RAMDISK_H__
#include "yaffs_guts.h"
int yramdisk_EraseBlockInNAND(yaffs_Device *dev, int blockNumber);
int yramdisk_WriteChunkWithTagsToNAND(yaffs_Device *dev,int chunkInNAND,const __u8 *data, yaffs_ExtendedTags *tags);
int yramdisk_ReadChunkWithTagsFromNAND(yaffs_Device *dev,int chunkInNAND, __u8 *data, yaffs_ExtendedTags *tags);
int yramdisk_EraseBlockInNAND(yaffs_Device *dev, int blockNumber);
int yramdisk_InitialiseNAND(yaffs_Device *dev);
int yramdisk_MarkNANDBlockBad(yaffs_Device *dev,int blockNumber);
int yramdisk_QueryNANDBlock(yaffs_Device *dev, int blockNo, yaffs_BlockState *state, int *sequenceNumber);
#endif

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/*
* YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
*
* Copyright (C) 2002-2007 Aleph One Ltd.
* for Toby Churchill Ltd and Brightstar Engineering
*
* Created by Charles Manning <charles@aleph1.co.uk>
*
* 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.
*/
/* XXX U-BOOT XXX */
#include <common.h>
#include "yaffs_guts.h"
#include "yaffs_tagscompat.h"
#include "yaffs_ecc.h"
static void yaffs_HandleReadDataError(yaffs_Device * dev, int chunkInNAND);
#ifdef NOTYET
static void yaffs_CheckWrittenBlock(yaffs_Device * dev, int chunkInNAND);
static void yaffs_HandleWriteChunkOk(yaffs_Device * dev, int chunkInNAND,
const __u8 * data,
const yaffs_Spare * spare);
static void yaffs_HandleUpdateChunk(yaffs_Device * dev, int chunkInNAND,
const yaffs_Spare * spare);
static void yaffs_HandleWriteChunkError(yaffs_Device * dev, int chunkInNAND);
#endif
static const char yaffs_countBitsTable[256] = {
0, 1, 1, 2, 1, 2, 2, 3, 1, 2, 2, 3, 2, 3, 3, 4,
1, 2, 2, 3, 2, 3, 3, 4, 2, 3, 3, 4, 3, 4, 4, 5,
1, 2, 2, 3, 2, 3, 3, 4, 2, 3, 3, 4, 3, 4, 4, 5,
2, 3, 3, 4, 3, 4, 4, 5, 3, 4, 4, 5, 4, 5, 5, 6,
1, 2, 2, 3, 2, 3, 3, 4, 2, 3, 3, 4, 3, 4, 4, 5,
2, 3, 3, 4, 3, 4, 4, 5, 3, 4, 4, 5, 4, 5, 5, 6,
2, 3, 3, 4, 3, 4, 4, 5, 3, 4, 4, 5, 4, 5, 5, 6,
3, 4, 4, 5, 4, 5, 5, 6, 4, 5, 5, 6, 5, 6, 6, 7,
1, 2, 2, 3, 2, 3, 3, 4, 2, 3, 3, 4, 3, 4, 4, 5,
2, 3, 3, 4, 3, 4, 4, 5, 3, 4, 4, 5, 4, 5, 5, 6,
2, 3, 3, 4, 3, 4, 4, 5, 3, 4, 4, 5, 4, 5, 5, 6,
3, 4, 4, 5, 4, 5, 5, 6, 4, 5, 5, 6, 5, 6, 6, 7,
2, 3, 3, 4, 3, 4, 4, 5, 3, 4, 4, 5, 4, 5, 5, 6,
3, 4, 4, 5, 4, 5, 5, 6, 4, 5, 5, 6, 5, 6, 6, 7,
3, 4, 4, 5, 4, 5, 5, 6, 4, 5, 5, 6, 5, 6, 6, 7,
4, 5, 5, 6, 5, 6, 6, 7, 5, 6, 6, 7, 6, 7, 7, 8
};
int yaffs_CountBits(__u8 x)
{
int retVal;
retVal = yaffs_countBitsTable[x];
return retVal;
}
/********** Tags ECC calculations *********/
void yaffs_CalcECC(const __u8 * data, yaffs_Spare * spare)
{
yaffs_ECCCalculate(data, spare->ecc1);
yaffs_ECCCalculate(&data[256], spare->ecc2);
}
void yaffs_CalcTagsECC(yaffs_Tags * tags)
{
/* Calculate an ecc */
unsigned char *b = ((yaffs_TagsUnion *) tags)->asBytes;
unsigned i, j;
unsigned ecc = 0;
unsigned bit = 0;
tags->ecc = 0;
for (i = 0; i < 8; i++) {
for (j = 1; j & 0xff; j <<= 1) {
bit++;
if (b[i] & j) {
ecc ^= bit;
}
}
}
tags->ecc = ecc;
}
int yaffs_CheckECCOnTags(yaffs_Tags * tags)
{
unsigned ecc = tags->ecc;
yaffs_CalcTagsECC(tags);
ecc ^= tags->ecc;
if (ecc && ecc <= 64) {
/* TODO: Handle the failure better. Retire? */
unsigned char *b = ((yaffs_TagsUnion *) tags)->asBytes;
ecc--;
b[ecc / 8] ^= (1 << (ecc & 7));
/* Now recvalc the ecc */
yaffs_CalcTagsECC(tags);
return 1; /* recovered error */
} else if (ecc) {
/* Wierd ecc failure value */
/* TODO Need to do somethiong here */
return -1; /* unrecovered error */
}
return 0;
}
/********** Tags **********/
static void yaffs_LoadTagsIntoSpare(yaffs_Spare * sparePtr,
yaffs_Tags * tagsPtr)
{
yaffs_TagsUnion *tu = (yaffs_TagsUnion *) tagsPtr;
yaffs_CalcTagsECC(tagsPtr);
sparePtr->tagByte0 = tu->asBytes[0];
sparePtr->tagByte1 = tu->asBytes[1];
sparePtr->tagByte2 = tu->asBytes[2];
sparePtr->tagByte3 = tu->asBytes[3];
sparePtr->tagByte4 = tu->asBytes[4];
sparePtr->tagByte5 = tu->asBytes[5];
sparePtr->tagByte6 = tu->asBytes[6];
sparePtr->tagByte7 = tu->asBytes[7];
}
static void yaffs_GetTagsFromSpare(yaffs_Device * dev, yaffs_Spare * sparePtr,
yaffs_Tags * tagsPtr)
{
yaffs_TagsUnion *tu = (yaffs_TagsUnion *) tagsPtr;
int result;
tu->asBytes[0] = sparePtr->tagByte0;
tu->asBytes[1] = sparePtr->tagByte1;
tu->asBytes[2] = sparePtr->tagByte2;
tu->asBytes[3] = sparePtr->tagByte3;
tu->asBytes[4] = sparePtr->tagByte4;
tu->asBytes[5] = sparePtr->tagByte5;
tu->asBytes[6] = sparePtr->tagByte6;
tu->asBytes[7] = sparePtr->tagByte7;
result = yaffs_CheckECCOnTags(tagsPtr);
if (result > 0) {
dev->tagsEccFixed++;
} else if (result < 0) {
dev->tagsEccUnfixed++;
}
}
static void yaffs_SpareInitialise(yaffs_Spare * spare)
{
memset(spare, 0xFF, sizeof(yaffs_Spare));
}
static int yaffs_WriteChunkToNAND(struct yaffs_DeviceStruct *dev,
int chunkInNAND, const __u8 * data,
yaffs_Spare * spare)
{
if (chunkInNAND < dev->startBlock * dev->nChunksPerBlock) {
T(YAFFS_TRACE_ERROR,
(TSTR("**>> yaffs chunk %d is not valid" TENDSTR),
chunkInNAND));
return YAFFS_FAIL;
}
dev->nPageWrites++;
return dev->writeChunkToNAND(dev, chunkInNAND, data, spare);
}
static int yaffs_ReadChunkFromNAND(struct yaffs_DeviceStruct *dev,
int chunkInNAND,
__u8 * data,
yaffs_Spare * spare,
yaffs_ECCResult * eccResult,
int doErrorCorrection)
{
int retVal;
yaffs_Spare localSpare;
dev->nPageReads++;
if (!spare && data) {
/* If we don't have a real spare, then we use a local one. */
/* Need this for the calculation of the ecc */
spare = &localSpare;
}
if (!dev->useNANDECC) {
retVal = dev->readChunkFromNAND(dev, chunkInNAND, data, spare);
if (data && doErrorCorrection) {
/* Do ECC correction */
/* Todo handle any errors */
int eccResult1, eccResult2;
__u8 calcEcc[3];
yaffs_ECCCalculate(data, calcEcc);
eccResult1 =
yaffs_ECCCorrect(data, spare->ecc1, calcEcc);
yaffs_ECCCalculate(&data[256], calcEcc);
eccResult2 =
yaffs_ECCCorrect(&data[256], spare->ecc2, calcEcc);
if (eccResult1 > 0) {
T(YAFFS_TRACE_ERROR,
(TSTR
("**>>yaffs ecc error fix performed on chunk %d:0"
TENDSTR), chunkInNAND));
dev->eccFixed++;
} else if (eccResult1 < 0) {
T(YAFFS_TRACE_ERROR,
(TSTR
("**>>yaffs ecc error unfixed on chunk %d:0"
TENDSTR), chunkInNAND));
dev->eccUnfixed++;
}
if (eccResult2 > 0) {
T(YAFFS_TRACE_ERROR,
(TSTR
("**>>yaffs ecc error fix performed on chunk %d:1"
TENDSTR), chunkInNAND));
dev->eccFixed++;
} else if (eccResult2 < 0) {
T(YAFFS_TRACE_ERROR,
(TSTR
("**>>yaffs ecc error unfixed on chunk %d:1"
TENDSTR), chunkInNAND));
dev->eccUnfixed++;
}
if (eccResult1 || eccResult2) {
/* We had a data problem on this page */
yaffs_HandleReadDataError(dev, chunkInNAND);
}
if (eccResult1 < 0 || eccResult2 < 0)
*eccResult = YAFFS_ECC_RESULT_UNFIXED;
else if (eccResult1 > 0 || eccResult2 > 0)
*eccResult = YAFFS_ECC_RESULT_FIXED;
else
*eccResult = YAFFS_ECC_RESULT_NO_ERROR;
}
} else {
/* Must allocate enough memory for spare+2*sizeof(int) */
/* for ecc results from device. */
struct yaffs_NANDSpare nspare;
retVal =
dev->readChunkFromNAND(dev, chunkInNAND, data,
(yaffs_Spare *) & nspare);
memcpy(spare, &nspare, sizeof(yaffs_Spare));
if (data && doErrorCorrection) {
if (nspare.eccres1 > 0) {
T(YAFFS_TRACE_ERROR,
(TSTR
("**>>mtd ecc error fix performed on chunk %d:0"
TENDSTR), chunkInNAND));
} else if (nspare.eccres1 < 0) {
T(YAFFS_TRACE_ERROR,
(TSTR
("**>>mtd ecc error unfixed on chunk %d:0"
TENDSTR), chunkInNAND));
}
if (nspare.eccres2 > 0) {
T(YAFFS_TRACE_ERROR,
(TSTR
("**>>mtd ecc error fix performed on chunk %d:1"
TENDSTR), chunkInNAND));
} else if (nspare.eccres2 < 0) {
T(YAFFS_TRACE_ERROR,
(TSTR
("**>>mtd ecc error unfixed on chunk %d:1"
TENDSTR), chunkInNAND));
}
if (nspare.eccres1 || nspare.eccres2) {
/* We had a data problem on this page */
yaffs_HandleReadDataError(dev, chunkInNAND);
}
if (nspare.eccres1 < 0 || nspare.eccres2 < 0)
*eccResult = YAFFS_ECC_RESULT_UNFIXED;
else if (nspare.eccres1 > 0 || nspare.eccres2 > 0)
*eccResult = YAFFS_ECC_RESULT_FIXED;
else
*eccResult = YAFFS_ECC_RESULT_NO_ERROR;
}
}
return retVal;
}
#ifdef NOTYET
static int yaffs_CheckChunkErased(struct yaffs_DeviceStruct *dev,
int chunkInNAND)
{
static int init = 0;
static __u8 cmpbuf[YAFFS_BYTES_PER_CHUNK];
static __u8 data[YAFFS_BYTES_PER_CHUNK];
/* Might as well always allocate the larger size for */
/* dev->useNANDECC == true; */
static __u8 spare[sizeof(struct yaffs_NANDSpare)];
dev->readChunkFromNAND(dev, chunkInNAND, data, (yaffs_Spare *) spare);
if (!init) {
memset(cmpbuf, 0xff, YAFFS_BYTES_PER_CHUNK);
init = 1;
}
if (memcmp(cmpbuf, data, YAFFS_BYTES_PER_CHUNK))
return YAFFS_FAIL;
if (memcmp(cmpbuf, spare, 16))
return YAFFS_FAIL;
return YAFFS_OK;
}
#endif
/*
* Functions for robustisizing
*/
static void yaffs_HandleReadDataError(yaffs_Device * dev, int chunkInNAND)
{
int blockInNAND = chunkInNAND / dev->nChunksPerBlock;
/* Mark the block for retirement */
yaffs_GetBlockInfo(dev, blockInNAND)->needsRetiring = 1;
T(YAFFS_TRACE_ERROR | YAFFS_TRACE_BAD_BLOCKS,
(TSTR("**>>Block %d marked for retirement" TENDSTR), blockInNAND));
/* TODO:
* Just do a garbage collection on the affected block
* then retire the block
* NB recursion
*/
}
#ifdef NOTYET
static void yaffs_CheckWrittenBlock(yaffs_Device * dev, int chunkInNAND)
{
}
static void yaffs_HandleWriteChunkOk(yaffs_Device * dev, int chunkInNAND,
const __u8 * data,
const yaffs_Spare * spare)
{
}
static void yaffs_HandleUpdateChunk(yaffs_Device * dev, int chunkInNAND,
const yaffs_Spare * spare)
{
}
static void yaffs_HandleWriteChunkError(yaffs_Device * dev, int chunkInNAND)
{
int blockInNAND = chunkInNAND / dev->nChunksPerBlock;
/* Mark the block for retirement */
yaffs_GetBlockInfo(dev, blockInNAND)->needsRetiring = 1;
/* Delete the chunk */
yaffs_DeleteChunk(dev, chunkInNAND, 1, __LINE__);
}
static int yaffs_VerifyCompare(const __u8 * d0, const __u8 * d1,
const yaffs_Spare * s0, const yaffs_Spare * s1)
{
if (memcmp(d0, d1, YAFFS_BYTES_PER_CHUNK) != 0 ||
s0->tagByte0 != s1->tagByte0 ||
s0->tagByte1 != s1->tagByte1 ||
s0->tagByte2 != s1->tagByte2 ||
s0->tagByte3 != s1->tagByte3 ||
s0->tagByte4 != s1->tagByte4 ||
s0->tagByte5 != s1->tagByte5 ||
s0->tagByte6 != s1->tagByte6 ||
s0->tagByte7 != s1->tagByte7 ||
s0->ecc1[0] != s1->ecc1[0] ||
s0->ecc1[1] != s1->ecc1[1] ||
s0->ecc1[2] != s1->ecc1[2] ||
s0->ecc2[0] != s1->ecc2[0] ||
s0->ecc2[1] != s1->ecc2[1] || s0->ecc2[2] != s1->ecc2[2]) {
return 0;
}
return 1;
}
#endif /* NOTYET */
int yaffs_TagsCompatabilityWriteChunkWithTagsToNAND(yaffs_Device * dev,
int chunkInNAND,
const __u8 * data,
const yaffs_ExtendedTags *
eTags)
{
yaffs_Spare spare;
yaffs_Tags tags;
yaffs_SpareInitialise(&spare);
if (eTags->chunkDeleted) {
spare.pageStatus = 0;
} else {
tags.objectId = eTags->objectId;
tags.chunkId = eTags->chunkId;
tags.byteCount = eTags->byteCount;
tags.serialNumber = eTags->serialNumber;
if (!dev->useNANDECC && data) {
yaffs_CalcECC(data, &spare);
}
yaffs_LoadTagsIntoSpare(&spare, &tags);
}
return yaffs_WriteChunkToNAND(dev, chunkInNAND, data, &spare);
}
int yaffs_TagsCompatabilityReadChunkWithTagsFromNAND(yaffs_Device * dev,
int chunkInNAND,
__u8 * data,
yaffs_ExtendedTags * eTags)
{
yaffs_Spare spare;
yaffs_Tags tags;
yaffs_ECCResult eccResult;
static yaffs_Spare spareFF;
static int init;
if (!init) {
memset(&spareFF, 0xFF, sizeof(spareFF));
init = 1;
}
if (yaffs_ReadChunkFromNAND
(dev, chunkInNAND, data, &spare, &eccResult, 1)) {
/* eTags may be NULL */
if (eTags) {
int deleted =
(yaffs_CountBits(spare.pageStatus) < 7) ? 1 : 0;
eTags->chunkDeleted = deleted;
eTags->eccResult = eccResult;
eTags->blockBad = 0; /* We're reading it */
/* therefore it is not a bad block */
eTags->chunkUsed =
(memcmp(&spareFF, &spare, sizeof(spareFF)) !=
0) ? 1 : 0;
if (eTags->chunkUsed) {
yaffs_GetTagsFromSpare(dev, &spare, &tags);
eTags->objectId = tags.objectId;
eTags->chunkId = tags.chunkId;
eTags->byteCount = tags.byteCount;
eTags->serialNumber = tags.serialNumber;
}
}
return YAFFS_OK;
} else {
return YAFFS_FAIL;
}
}
int yaffs_TagsCompatabilityMarkNANDBlockBad(struct yaffs_DeviceStruct *dev,
int blockInNAND)
{
yaffs_Spare spare;
memset(&spare, 0xff, sizeof(yaffs_Spare));
spare.blockStatus = 'Y';
yaffs_WriteChunkToNAND(dev, blockInNAND * dev->nChunksPerBlock, NULL,
&spare);
yaffs_WriteChunkToNAND(dev, blockInNAND * dev->nChunksPerBlock + 1,
NULL, &spare);
return YAFFS_OK;
}
int yaffs_TagsCompatabilityQueryNANDBlock(struct yaffs_DeviceStruct *dev,
int blockNo, yaffs_BlockState *
state,
int *sequenceNumber)
{
yaffs_Spare spare0, spare1;
static yaffs_Spare spareFF;
static int init;
yaffs_ECCResult dummy;
if (!init) {
memset(&spareFF, 0xFF, sizeof(spareFF));
init = 1;
}
*sequenceNumber = 0;
yaffs_ReadChunkFromNAND(dev, blockNo * dev->nChunksPerBlock, NULL,
&spare0, &dummy, 1);
yaffs_ReadChunkFromNAND(dev, blockNo * dev->nChunksPerBlock + 1, NULL,
&spare1, &dummy, 1);
if (yaffs_CountBits(spare0.blockStatus & spare1.blockStatus) < 7)
*state = YAFFS_BLOCK_STATE_DEAD;
else if (memcmp(&spareFF, &spare0, sizeof(spareFF)) == 0)
*state = YAFFS_BLOCK_STATE_EMPTY;
else
*state = YAFFS_BLOCK_STATE_NEEDS_SCANNING;
return YAFFS_OK;
}

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/*
* YAFFS: Yet another Flash File System . A NAND-flash specific file system.
*
* Copyright (C) 2002-2007 Aleph One Ltd.
* for Toby Churchill Ltd and Brightstar Engineering
*
* Created by Charles Manning <charles@aleph1.co.uk>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 2.1 as
* published by the Free Software Foundation.
*
* Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL.
*/
#ifndef __YAFFS_TAGSCOMPAT_H__
#define __YAFFS_TAGSCOMPAT_H__
#include "yaffs_guts.h"
int yaffs_TagsCompatabilityWriteChunkWithTagsToNAND(yaffs_Device * dev,
int chunkInNAND,
const __u8 * data,
const yaffs_ExtendedTags *
tags);
int yaffs_TagsCompatabilityReadChunkWithTagsFromNAND(yaffs_Device * dev,
int chunkInNAND,
__u8 * data,
yaffs_ExtendedTags *
tags);
int yaffs_TagsCompatabilityMarkNANDBlockBad(struct yaffs_DeviceStruct *dev,
int blockNo);
int yaffs_TagsCompatabilityQueryNANDBlock(struct yaffs_DeviceStruct *dev,
int blockNo, yaffs_BlockState *
state, int *sequenceNumber);
void yaffs_CalcTagsECC(yaffs_Tags * tags);
int yaffs_CheckECCOnTags(yaffs_Tags * tags);
int yaffs_CountBits(__u8 byte);
#endif

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/*
* YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
*
* Copyright (C) 2002-2007 Aleph One Ltd.
* for Toby Churchill Ltd and Brightstar Engineering
*
* Created by Charles Manning <charles@aleph1.co.uk>
*
* 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.
*/
/* XXX U-BOOT XXX */
#include <common.h>
#include "yaffs_tagsvalidity.h"
void yaffs_InitialiseTags(yaffs_ExtendedTags * tags)
{
memset(tags, 0, sizeof(yaffs_ExtendedTags));
tags->validMarker0 = 0xAAAAAAAA;
tags->validMarker1 = 0x55555555;
}
int yaffs_ValidateTags(yaffs_ExtendedTags * tags)
{
return (tags->validMarker0 == 0xAAAAAAAA &&
tags->validMarker1 == 0x55555555);
}

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/*
* YAFFS: Yet another Flash File System . A NAND-flash specific file system.
*
* Copyright (C) 2002-2007 Aleph One Ltd.
* for Toby Churchill Ltd and Brightstar Engineering
*
* Created by Charles Manning <charles@aleph1.co.uk>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 2.1 as
* published by the Free Software Foundation.
*
* Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL.
*/
#ifndef __YAFFS_TAGS_VALIDITY_H__
#define __YAFFS_TAGS_VALIDITY_H__
#include "yaffs_guts.h"
void yaffs_InitialiseTags(yaffs_ExtendedTags * tags);
int yaffs_ValidateTags(yaffs_ExtendedTags * tags);
#endif

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/*
* YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
*
* Copyright (C) 2002-2007 Aleph One Ltd.
* for Toby Churchill Ltd and Brightstar Engineering
*
* Created by Charles Manning <charles@aleph1.co.uk>
*
* 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.
*/
/*
* yaffscfg.c The configuration for the "direct" use of yaffs.
*
* This file is intended to be modified to your requirements.
* There is no need to redistribute this file.
*/
/* XXX U-BOOT XXX */
#include <common.h>
#include <config.h>
#include "nand.h"
#include "yaffscfg.h"
#include "yaffsfs.h"
#include "yaffs_packedtags2.h"
#include "yaffs_mtdif.h"
#include "yaffs_mtdif2.h"
#if 0
#include <errno.h>
#else
#include "malloc.h"
#endif
unsigned yaffs_traceMask = 0xFFFFFFFF;
static int yaffs_errno = 0;
void yaffsfs_SetError(int err)
{
//Do whatever to set error
yaffs_errno = err;
}
int yaffsfs_GetError(void)
{
return yaffs_errno;
}
void yaffsfs_Lock(void)
{
}
void yaffsfs_Unlock(void)
{
}
__u32 yaffsfs_CurrentTime(void)
{
return 0;
}
void *yaffs_malloc(size_t size)
{
return malloc(size);
}
void yaffs_free(void *ptr)
{
free(ptr);
}
void yaffsfs_LocalInitialisation(void)
{
// Define locking semaphore.
}
// Configuration for:
// /ram 2MB ramdisk
// /boot 2MB boot disk (flash)
// /flash 14MB flash disk (flash)
// NB Though /boot and /flash occupy the same physical device they
// are still disticnt "yaffs_Devices. You may think of these as "partitions"
// using non-overlapping areas in the same device.
//
#include "yaffs_ramdisk.h"
#include "yaffs_flashif.h"
static int isMounted = 0;
#define MOUNT_POINT "/flash"
extern nand_info_t nand_info[];
/* XXX U-BOOT XXX */
#if 0
static yaffs_Device ramDev;
static yaffs_Device bootDev;
static yaffs_Device flashDev;
#endif
static yaffsfs_DeviceConfiguration yaffsfs_config[] = {
/* XXX U-BOOT XXX */
#if 0
{ "/ram", &ramDev},
{ "/boot", &bootDev},
{ "/flash", &flashDev},
#else
{ MOUNT_POINT, 0},
#endif
{(void *)0,(void *)0}
};
int yaffs_StartUp(void)
{
struct mtd_info *mtd = &nand_info[0];
int yaffsVersion = 2;
int nBlocks;
yaffs_Device *flashDev = calloc(1, sizeof(yaffs_Device));
yaffsfs_config[0].dev = flashDev;
// Stuff to configure YAFFS
// Stuff to initialise anything special (eg lock semaphore).
yaffsfs_LocalInitialisation();
// Set up devices
/* XXX U-BOOT XXX */
#if 0
// /ram
ramDev.nBytesPerChunk = 512;
ramDev.nChunksPerBlock = 32;
ramDev.nReservedBlocks = 2; // Set this smaller for RAM
ramDev.startBlock = 1; // Can't use block 0
ramDev.endBlock = 127; // Last block in 2MB.
ramDev.useNANDECC = 1;
ramDev.nShortOpCaches = 0; // Disable caching on this device.
ramDev.genericDevice = (void *) 0; // Used to identify the device in fstat.
ramDev.writeChunkWithTagsToNAND = yramdisk_WriteChunkWithTagsToNAND;
ramDev.readChunkWithTagsFromNAND = yramdisk_ReadChunkWithTagsFromNAND;
ramDev.eraseBlockInNAND = yramdisk_EraseBlockInNAND;
ramDev.initialiseNAND = yramdisk_InitialiseNAND;
// /boot
bootDev.nBytesPerChunk = 612;
bootDev.nChunksPerBlock = 32;
bootDev.nReservedBlocks = 5;
bootDev.startBlock = 1; // Can't use block 0
bootDev.endBlock = 127; // Last block in 2MB.
bootDev.useNANDECC = 0; // use YAFFS's ECC
bootDev.nShortOpCaches = 10; // Use caches
bootDev.genericDevice = (void *) 1; // Used to identify the device in fstat.
bootDev.writeChunkToNAND = yflash_WriteChunkToNAND;
bootDev.readChunkFromNAND = yflash_ReadChunkFromNAND;
bootDev.eraseBlockInNAND = yflash_EraseBlockInNAND;
bootDev.initialiseNAND = yflash_InitialiseNAND;
#endif
// /flash
flashDev->nReservedBlocks = 5;
// flashDev->nShortOpCaches = (options.no_cache) ? 0 : 10;
flashDev->nShortOpCaches = 10; // Use caches
flashDev->useNANDECC = 0; // do not use YAFFS's ECC
if (yaffsVersion == 2)
{
flashDev->writeChunkWithTagsToNAND = nandmtd2_WriteChunkWithTagsToNAND;
flashDev->readChunkWithTagsFromNAND = nandmtd2_ReadChunkWithTagsFromNAND;
flashDev->markNANDBlockBad = nandmtd2_MarkNANDBlockBad;
flashDev->queryNANDBlock = nandmtd2_QueryNANDBlock;
flashDev->spareBuffer = YMALLOC(mtd->oobsize);
flashDev->isYaffs2 = 1;
#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17))
flashDev->nDataBytesPerChunk = mtd->writesize;
flashDev->nChunksPerBlock = mtd->erasesize / mtd->writesize;
#else
flashDev->nDataBytesPerChunk = mtd->oobblock;
flashDev->nChunksPerBlock = mtd->erasesize / mtd->oobblock;
#endif
nBlocks = mtd->size / mtd->erasesize;
flashDev->nCheckpointReservedBlocks = 10;
flashDev->startBlock = 0;
flashDev->endBlock = nBlocks - 1;
}
else
{
flashDev->writeChunkToNAND = nandmtd_WriteChunkToNAND;
flashDev->readChunkFromNAND = nandmtd_ReadChunkFromNAND;
flashDev->isYaffs2 = 0;
nBlocks = mtd->size / (YAFFS_CHUNKS_PER_BLOCK * YAFFS_BYTES_PER_CHUNK);
flashDev->startBlock = 320;
flashDev->endBlock = nBlocks - 1;
flashDev->nChunksPerBlock = YAFFS_CHUNKS_PER_BLOCK;
flashDev->nDataBytesPerChunk = YAFFS_BYTES_PER_CHUNK;
}
/* ... and common functions */
flashDev->eraseBlockInNAND = nandmtd_EraseBlockInNAND;
flashDev->initialiseNAND = nandmtd_InitialiseNAND;
yaffs_initialise(yaffsfs_config);
return 0;
}
void make_a_file(char *yaffsName,char bval,int sizeOfFile)
{
int outh;
int i;
unsigned char buffer[100];
outh = yaffs_open(yaffsName, O_CREAT | O_RDWR | O_TRUNC, S_IREAD | S_IWRITE);
if (outh < 0)
{
printf("Error opening file: %d\n", outh);
return;
}
memset(buffer,bval,100);
do{
i = sizeOfFile;
if(i > 100) i = 100;
sizeOfFile -= i;
yaffs_write(outh,buffer,i);
} while (sizeOfFile > 0);
yaffs_close(outh);
}
void read_a_file(char *fn)
{
int h;
int i = 0;
unsigned char b;
h = yaffs_open(fn, O_RDWR,0);
if(h<0)
{
printf("File not found\n");
return;
}
while(yaffs_read(h,&b,1)> 0)
{
printf("%02x ",b);
i++;
if(i > 32)
{
printf("\n");
i = 0;;
}
}
printf("\n");
yaffs_close(h);
}
void cmd_yaffs_mount(char *mp)
{
yaffs_StartUp();
int retval = yaffs_mount(mp);
if( retval != -1)
isMounted = 1;
else
printf("Error mounting %s, return value: %d\n", mp, yaffsfs_GetError());
}
static void checkMount(void)
{
if( !isMounted )
{
cmd_yaffs_mount(MOUNT_POINT);
}
}
void cmd_yaffs_umount(char *mp)
{
checkMount();
if( yaffs_unmount(mp) == -1)
printf("Error umounting %s, return value: %d\n", mp, yaffsfs_GetError());
}
void cmd_yaffs_write_file(char *yaffsName,char bval,int sizeOfFile)
{
checkMount();
make_a_file(yaffsName,bval,sizeOfFile);
}
void cmd_yaffs_read_file(char *fn)
{
checkMount();
read_a_file(fn);
}
void cmd_yaffs_mread_file(char *fn, char *addr)
{
int h;
struct yaffs_stat s;
checkMount();
yaffs_stat(fn,&s);
printf ("Copy %s to 0x%08x... ", fn, addr);
h = yaffs_open(fn, O_RDWR,0);
if(h<0)
{
printf("File not found\n");
return;
}
yaffs_read(h,addr,(int)s.st_size);
printf("\t[DONE]\n");
yaffs_close(h);
}
void cmd_yaffs_mwrite_file(char *fn, char *addr, int size)
{
int outh;
checkMount();
outh = yaffs_open(fn, O_CREAT | O_RDWR | O_TRUNC, S_IREAD | S_IWRITE);
if (outh < 0)
{
printf("Error opening file: %d\n", outh);
}
yaffs_write(outh,addr,size);
yaffs_close(outh);
}
void cmd_yaffs_ls(const char *mountpt, int longlist)
{
int i;
yaffs_DIR *d;
yaffs_dirent *de;
struct yaffs_stat stat;
char tempstr[255];
checkMount();
d = yaffs_opendir(mountpt);
if(!d)
{
printf("opendir failed\n");
}
else
{
for(i = 0; (de = yaffs_readdir(d)) != NULL; i++)
{
if (longlist)
{
sprintf(tempstr, "%s/%s", mountpt, de->d_name);
yaffs_stat(tempstr, &stat);
printf("%-25s\t%7d\n",de->d_name, stat.st_size);
}
else
{
printf("%s\n",de->d_name);
}
}
}
}
void cmd_yaffs_mkdir(const char *dir)
{
checkMount();
int retval = yaffs_mkdir(dir, 0);
if ( retval < 0)
printf("yaffs_mkdir returning error: %d\n", retval);
}
void cmd_yaffs_rmdir(const char *dir)
{
checkMount();
int retval = yaffs_rmdir(dir);
if ( retval < 0)
printf("yaffs_rmdir returning error: %d\n", retval);
}
void cmd_yaffs_rm(const char *path)
{
checkMount();
int retval = yaffs_unlink(path);
if ( retval < 0)
printf("yaffs_unlink returning error: %d\n", retval);
}
void cmd_yaffs_mv(const char *oldPath, const char *newPath)
{
checkMount();
int retval = yaffs_rename(newPath, oldPath);
if ( retval < 0)
printf("yaffs_unlink returning error: %d\n", retval);
}

46
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/*
* YAFFS: Yet another Flash File System . A NAND-flash specific file system.
*
* Copyright (C) 2002-2007 Aleph One Ltd.
* for Toby Churchill Ltd and Brightstar Engineering
*
* Created by Charles Manning <charles@aleph1.co.uk>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 2.1 as
* published by the Free Software Foundation.
*
* Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL.
*/
/*
* Header file for using yaffs in an application via
* a direct interface.
*/
#ifndef __YAFFSCFG_H__
#define __YAFFSCFG_H__
#include "devextras.h"
#define YAFFSFS_N_HANDLES 200
typedef struct {
const char *prefix;
struct yaffs_DeviceStruct *dev;
} yaffsfs_DeviceConfiguration;
void yaffsfs_Lock(void);
void yaffsfs_Unlock(void);
__u32 yaffsfs_CurrentTime(void);
void yaffsfs_SetError(int err);
int yaffsfs_GetError(void);
#endif

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233
fs/yaffs2/yaffsfs.h Normal file
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/*
* YAFFS: Yet another Flash File System . A NAND-flash specific file system.
*
* Copyright (C) 2002-2007 Aleph One Ltd.
* for Toby Churchill Ltd and Brightstar Engineering
*
* Created by Charles Manning <charles@aleph1.co.uk>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 2.1 as
* published by the Free Software Foundation.
*
* Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL.
*/
/*
* Header file for using yaffs in an application via
* a direct interface.
*/
#ifndef __YAFFSFS_H__
#define __YAFFSFS_H__
#include "yaffscfg.h"
#include "yportenv.h"
//typedef long off_t;
//typedef long dev_t;
//typedef unsigned long mode_t;
#ifndef NAME_MAX
#define NAME_MAX 256
#endif
#ifndef O_RDONLY
#define O_RDONLY 00
#endif
#ifndef O_WRONLY
#define O_WRONLY 01
#endif
#ifndef O_RDWR
#define O_RDWR 02
#endif
#ifndef O_CREAT
#define O_CREAT 0100
#endif
#ifndef O_EXCL
#define O_EXCL 0200
#endif
#ifndef O_TRUNC
#define O_TRUNC 01000
#endif
#ifndef O_APPEND
#define O_APPEND 02000
#endif
#ifndef SEEK_SET
#define SEEK_SET 0
#endif
#ifndef SEEK_CUR
#define SEEK_CUR 1
#endif
#ifndef SEEK_END
#define SEEK_END 2
#endif
#ifndef EBUSY
#define EBUSY 16
#endif
#ifndef ENODEV
#define ENODEV 19
#endif
#ifndef EINVAL
#define EINVAL 22
#endif
#ifndef EBADF
#define EBADF 9
#endif
#ifndef EACCESS
#define EACCESS 13
#endif
#ifndef EXDEV
#define EXDEV 18
#endif
#ifndef ENOENT
#define ENOENT 2
#endif
#ifndef ENOSPC
#define ENOSPC 28
#endif
#ifndef ENOTEMPTY
#define ENOTEMPTY 39
#endif
#ifndef ENOMEM
#define ENOMEM 12
#endif
#ifndef EEXIST
#define EEXIST 17
#endif
#ifndef ENOTDIR
#define ENOTDIR 20
#endif
#ifndef EISDIR
#define EISDIR 21
#endif
// Mode flags
#ifndef S_IFMT
#define S_IFMT 0170000
#endif
#ifndef S_IFLNK
#define S_IFLNK 0120000
#endif
#ifndef S_IFDIR
#define S_IFDIR 0040000
#endif
#ifndef S_IFREG
#define S_IFREG 0100000
#endif
#ifndef S_IREAD
#define S_IREAD 0000400
#endif
#ifndef S_IWRITE
#define S_IWRITE 0000200
#endif
struct yaffs_dirent{
long d_ino; /* inode number */
off_t d_off; /* offset to this dirent */
unsigned short d_reclen; /* length of this d_name */
char d_name [NAME_MAX+1]; /* file name (null-terminated) */
unsigned d_dont_use; /* debug pointer, not for public consumption */
};
typedef struct yaffs_dirent yaffs_dirent;
typedef struct __opaque yaffs_DIR;
struct yaffs_stat{
int st_dev; /* device */
int st_ino; /* inode */
mode_t st_mode; /* protection */
int st_nlink; /* number of hard links */
int st_uid; /* user ID of owner */
int st_gid; /* group ID of owner */
unsigned st_rdev; /* device type (if inode device) */
off_t st_size; /* total size, in bytes */
unsigned long st_blksize; /* blocksize for filesystem I/O */
unsigned long st_blocks; /* number of blocks allocated */
unsigned long yst_atime; /* time of last access */
unsigned long yst_mtime; /* time of last modification */
unsigned long yst_ctime; /* time of last change */
};
int yaffs_open(const char *path, int oflag, int mode) ;
int yaffs_read(int fd, void *buf, unsigned int nbyte) ;
int yaffs_write(int fd, const void *buf, unsigned int nbyte) ;
int yaffs_close(int fd) ;
off_t yaffs_lseek(int fd, off_t offset, int whence) ;
int yaffs_truncate(int fd, off_t newSize);
int yaffs_unlink(const char *path) ;
int yaffs_rename(const char *oldPath, const char *newPath) ;
int yaffs_stat(const char *path, struct yaffs_stat *buf) ;
int yaffs_lstat(const char *path, struct yaffs_stat *buf) ;
int yaffs_fstat(int fd, struct yaffs_stat *buf) ;
int yaffs_chmod(const char *path, mode_t mode);
int yaffs_fchmod(int fd, mode_t mode);
int yaffs_mkdir(const char *path, mode_t mode) ;
int yaffs_rmdir(const char *path) ;
yaffs_DIR *yaffs_opendir(const char *dirname) ;
struct yaffs_dirent *yaffs_readdir(yaffs_DIR *dirp) ;
void yaffs_rewinddir(yaffs_DIR *dirp) ;
int yaffs_closedir(yaffs_DIR *dirp) ;
int yaffs_mount(const char *path) ;
int yaffs_unmount(const char *path) ;
int yaffs_symlink(const char *oldpath, const char *newpath);
int yaffs_readlink(const char *path, char *buf, int bufsiz);
int yaffs_link(const char *oldpath, const char *newpath);
int yaffs_mknod(const char *pathname, mode_t mode, dev_t dev);
loff_t yaffs_freespace(const char *path);
void yaffs_initialise(yaffsfs_DeviceConfiguration *configList);
int yaffs_StartUp(void);
#endif

21
fs/yaffs2/yaffsinterface.h Normal file
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/*
* YAFFS: Yet another Flash File System . A NAND-flash specific file system.
*
* Copyright (C) 2002-2007 Aleph One Ltd.
* for Toby Churchill Ltd and Brightstar Engineering
*
* Created by Charles Manning <charles@aleph1.co.uk>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 2.1 as
* published by the Free Software Foundation.
*
* Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL.
*/
#ifndef __YAFFSINTERFACE_H__
#define __YAFFSINTERFACE_H__
int yaffs_Initialise(unsigned nBlocks);
#endif

94
fs/yaffs2/ydirectenv.h Normal file
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/*
* YAFFS: Yet another Flash File System . A NAND-flash specific file system.
*
* Copyright (C) 2002-2007 Aleph One Ltd.
* for Toby Churchill Ltd and Brightstar Engineering
*
* Created by Charles Manning <charles@aleph1.co.uk>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 2.1 as
* published by the Free Software Foundation.
*
* Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL.
*/
/*
* ydirectenv.h: Environment wrappers for YAFFS direct.
*/
#ifndef __YDIRECTENV_H__
#define __YDIRECTENV_H__
// Direct interface
#include "devextras.h"
/* XXX U-BOOT XXX */
#if 0
#include "stdlib.h"
#include "stdio.h"
#include "string.h"
#include "assert.h"
#endif
#include "yaffs_malloc.h"
/* XXX U-BOOT XXX */
#if 0
#define YBUG() assert(1)
#endif
#define YCHAR char
#define YUCHAR unsigned char
#define _Y(x) x
#define yaffs_strcpy(a,b) strcpy(a,b)
#define yaffs_strncpy(a,b,c) strncpy(a,b,c)
#define yaffs_strncmp(a,b,c) strncmp(a,b,c)
#define yaffs_strlen(s) strlen(s)
#define yaffs_sprintf sprintf
#define yaffs_toupper(a) toupper(a)
#ifdef NO_Y_INLINE
#define Y_INLINE
#else
#define Y_INLINE inline
#endif
#define YMALLOC(x) yaffs_malloc(x)
#define YFREE(x) free(x)
#define YMALLOC_ALT(x) yaffs_malloc(x)
#define YFREE_ALT(x) free(x)
#define YMALLOC_DMA(x) yaffs_malloc(x)
#define YYIELD() do {} while(0)
//#define YINFO(s) YPRINTF(( __FILE__ " %d %s\n",__LINE__,s))
//#define YALERT(s) YINFO(s)
#define TENDSTR "\n"
#define TSTR(x) x
#define TOUT(p) printf p
#define YAFFS_LOSTNFOUND_NAME "lost+found"
#define YAFFS_LOSTNFOUND_PREFIX "obj"
//#define YPRINTF(x) printf x
#include "yaffscfg.h"
#define Y_CURRENT_TIME yaffsfs_CurrentTime()
#define Y_TIME_CONVERT(x) x
#define YAFFS_ROOT_MODE 0666
#define YAFFS_LOSTNFOUND_MODE 0666
#define yaffs_SumCompare(x,y) ((x) == (y))
#define yaffs_strcmp(a,b) strcmp(a,b)
#endif

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/*
* YAFFS: Yet another Flash File System . A NAND-flash specific file system.
*
* Copyright (C) 2002-2007 Aleph One Ltd.
* for Toby Churchill Ltd and Brightstar Engineering
*
* Created by Charles Manning <charles@aleph1.co.uk>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 2.1 as
* published by the Free Software Foundation.
*
* Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL.
*/
#ifndef __YPORTENV_H__
#define __YPORTENV_H__
/* XXX U-BOOT XXX */
#ifndef CONFIG_YAFFS_DIRECT
#define CONFIG_YAFFS_DIRECT
#endif
#if defined CONFIG_YAFFS_WINCE
#include "ywinceenv.h"
/* XXX U-BOOT XXX */
#elif 0 /* defined __KERNEL__ */
#include "moduleconfig.h"
/* Linux kernel */
#include <linux/version.h>
#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,19))
#include <linux/config.h>
#endif
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/sched.h>
#include <linux/string.h>
#include <linux/slab.h>
#include <linux/vmalloc.h>
#define YCHAR char
#define YUCHAR unsigned char
#define _Y(x) x
#define yaffs_strcpy(a,b) strcpy(a,b)
#define yaffs_strncpy(a,b,c) strncpy(a,b,c)
#define yaffs_strncmp(a,b,c) strncmp(a,b,c)
#define yaffs_strlen(s) strlen(s)
#define yaffs_sprintf sprintf
#define yaffs_toupper(a) toupper(a)
#define Y_INLINE inline
#define YAFFS_LOSTNFOUND_NAME "lost+found"
#define YAFFS_LOSTNFOUND_PREFIX "obj"
/* #define YPRINTF(x) printk x */
#define YMALLOC(x) kmalloc(x,GFP_KERNEL)
#define YFREE(x) kfree(x)
#define YMALLOC_ALT(x) vmalloc(x)
#define YFREE_ALT(x) vfree(x)
#define YMALLOC_DMA(x) YMALLOC(x)
// KR - added for use in scan so processes aren't blocked indefinitely.
#define YYIELD() schedule()
#define YAFFS_ROOT_MODE 0666
#define YAFFS_LOSTNFOUND_MODE 0666
#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
#define Y_CURRENT_TIME CURRENT_TIME.tv_sec
#define Y_TIME_CONVERT(x) (x).tv_sec
#else
#define Y_CURRENT_TIME CURRENT_TIME
#define Y_TIME_CONVERT(x) (x)
#endif
#define yaffs_SumCompare(x,y) ((x) == (y))
#define yaffs_strcmp(a,b) strcmp(a,b)
#define TENDSTR "\n"
#define TSTR(x) KERN_WARNING x
#define TOUT(p) printk p
#define yaffs_trace(mask, fmt, args...) \
do { if ((mask) & (yaffs_traceMask|YAFFS_TRACE_ERROR)) \
printk(KERN_WARNING "yaffs: " fmt, ## args); \
} while (0)
#define compile_time_assertion(assertion) \
({ int x = __builtin_choose_expr(assertion, 0, (void)0); (void) x; })
#elif defined CONFIG_YAFFS_DIRECT
/* Direct interface */
#include "ydirectenv.h"
#elif defined CONFIG_YAFFS_UTIL
/* Stuff for YAFFS utilities */
#include "stdlib.h"
#include "stdio.h"
#include "string.h"
#include "devextras.h"
#define YMALLOC(x) malloc(x)
#define YFREE(x) free(x)
#define YMALLOC_ALT(x) malloc(x)
#define YFREE_ALT(x) free(x)
#define YCHAR char
#define YUCHAR unsigned char
#define _Y(x) x
#define yaffs_strcpy(a,b) strcpy(a,b)
#define yaffs_strncpy(a,b,c) strncpy(a,b,c)
#define yaffs_strlen(s) strlen(s)
#define yaffs_sprintf sprintf
#define yaffs_toupper(a) toupper(a)
#define Y_INLINE inline
/* #define YINFO(s) YPRINTF(( __FILE__ " %d %s\n",__LINE__,s)) */
/* #define YALERT(s) YINFO(s) */
#define TENDSTR "\n"
#define TSTR(x) x
#define TOUT(p) printf p
#define YAFFS_LOSTNFOUND_NAME "lost+found"
#define YAFFS_LOSTNFOUND_PREFIX "obj"
/* #define YPRINTF(x) printf x */
#define YAFFS_ROOT_MODE 0666
#define YAFFS_LOSTNFOUND_MODE 0666
#define yaffs_SumCompare(x,y) ((x) == (y))
#define yaffs_strcmp(a,b) strcmp(a,b)
#else
/* Should have specified a configuration type */
#error Unknown configuration
#endif
/* see yaffs_fs.c */
extern unsigned int yaffs_traceMask;
extern unsigned int yaffs_wr_attempts;
/*
* Tracing flags.
* The flags masked in YAFFS_TRACE_ALWAYS are always traced.
*/
#define YAFFS_TRACE_OS 0x00000002
#define YAFFS_TRACE_ALLOCATE 0x00000004
#define YAFFS_TRACE_SCAN 0x00000008
#define YAFFS_TRACE_BAD_BLOCKS 0x00000010
#define YAFFS_TRACE_ERASE 0x00000020
#define YAFFS_TRACE_GC 0x00000040
#define YAFFS_TRACE_WRITE 0x00000080
#define YAFFS_TRACE_TRACING 0x00000100
#define YAFFS_TRACE_DELETION 0x00000200
#define YAFFS_TRACE_BUFFERS 0x00000400
#define YAFFS_TRACE_NANDACCESS 0x00000800
#define YAFFS_TRACE_GC_DETAIL 0x00001000
#define YAFFS_TRACE_SCAN_DEBUG 0x00002000
#define YAFFS_TRACE_MTD 0x00004000
#define YAFFS_TRACE_CHECKPOINT 0x00008000
#define YAFFS_TRACE_VERIFY 0x00010000
#define YAFFS_TRACE_VERIFY_NAND 0x00020000
#define YAFFS_TRACE_VERIFY_FULL 0x00040000
#define YAFFS_TRACE_VERIFY_ALL 0x000F0000
#define YAFFS_TRACE_ERROR 0x40000000
#define YAFFS_TRACE_BUG 0x80000000
#define YAFFS_TRACE_ALWAYS 0xF0000000
#define T(mask,p) do{ if((mask) & (yaffs_traceMask | YAFFS_TRACE_ALWAYS)) TOUT(p);} while(0)
#ifndef CONFIG_YAFFS_WINCE
#define YBUG() T(YAFFS_TRACE_BUG,(TSTR("==>> yaffs bug: " __FILE__ " %d" TENDSTR),__LINE__))
#endif
#endif

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include/asm-arm/arch-at91sam9/at91_pio.h → include/asm-arm/arch-at91/at91_pio.h
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include/asm-arm/arch-at91sam9/at91_pit.h → include/asm-arm/arch-at91/at91_pit.h
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include/asm-arm/arch-at91sam9/at91_rstc.h → include/asm-arm/arch-at91/at91_rstc.h
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include/asm-arm/arch-at91sam9/at91_spi.h → include/asm-arm/arch-at91/at91_spi.h
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include/asm-arm/arch-at91sam9/at91cap9.h → include/asm-arm/arch-at91/at91cap9.h
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include/asm-arm/arch-at91sam9/at91cap9_matrix.h → include/asm-arm/arch-at91/at91cap9_matrix.h
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include/asm-arm/arch-at91sam9/at91sam9260.h → include/asm-arm/arch-at91/at91sam9260.h
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include/asm-arm/arch-at91sam9/at91sam9260_matrix.h → include/asm-arm/arch-at91/at91sam9260_matrix.h
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include/asm-arm/arch-at91sam9/at91sam9261.h → include/asm-arm/arch-at91/at91sam9261.h
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include/asm-arm/arch-at91sam9/at91sam9261_matrix.h → include/asm-arm/arch-at91/at91sam9261_matrix.h
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include/asm-arm/arch-at91sam9/at91sam9263.h → include/asm-arm/arch-at91/at91sam9263.h
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include/asm-arm/arch-at91sam9/at91sam9263_matrix.h → include/asm-arm/arch-at91/at91sam9263_matrix.h
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include/asm-arm/arch-at91sam9/at91sam9_smc.h → include/asm-arm/arch-at91/at91sam9_smc.h
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include/asm-arm/arch-at91sam9/at91sam9rl.h → include/asm-arm/arch-at91/at91sam9rl.h
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include/asm-arm/arch-at91sam9/at91sam9rl_matrix.h → include/asm-arm/arch-at91/at91sam9rl_matrix.h
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include/asm-arm/arch-at91sam9/clk.h → include/asm-arm/arch-at91/clk.h
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include/asm-arm/arch-at91sam9/gpio.h → include/asm-arm/arch-at91/gpio.h
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