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mtd: mxc_nand: add i.MX53 support 

The only relevant change between i.MX51 and i.MX53 is that
a bitfield is shifted one bit to the left.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
This commit is contained in:
Sascha Hauer 2012-06-06 12:33:15 +02:00 committed by David Woodhouse
parent 71885b650a
commit 71718a8edf
1 changed files with 42 additions and 6 deletions
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48
drivers/mtd/nand/mxc_nand.c
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@ -43,8 +43,8 @@
#define nfc_is_v21() (cpu_is_mx25() || cpu_is_mx35())
#define nfc_is_v1() (cpu_is_mx31() || cpu_is_mx27() || cpu_is_mx21())
#define nfc_is_v3_2() (cpu_is_mx51() || cpu_is_mx53())
#define nfc_is_v3() nfc_is_v3_2()
#define nfc_is_v3_2a() cpu_is_mx51()
#define nfc_is_v3_2b() cpu_is_mx53()
/* Addresses for NFC registers */
#define NFC_V1_V2_BUF_SIZE (host->regs + 0x00)
@ -122,7 +122,7 @@
#define NFC_V3_CONFIG2_2CMD_PHASES (1 << 4)
#define NFC_V3_CONFIG2_NUM_ADDR_PHASE0 (1 << 5)
#define NFC_V3_CONFIG2_ECC_MODE_8 (1 << 6)
#define NFC_V3_CONFIG2_PPB(x) (((x) & 0x3) << 7)
#define NFC_V3_CONFIG2_PPB(x, shift) (((x) & 0x3) << shift)
#define NFC_V3_CONFIG2_NUM_ADDR_PHASE1(x) (((x) & 0x3) << 12)
#define NFC_V3_CONFIG2_INT_MSK (1 << 15)
#define NFC_V3_CONFIG2_ST_CMD(x) (((x) & 0xff) << 24)
@ -174,6 +174,7 @@ struct mxc_nand_devtype_data {
int spare_len;
int eccbytes;
int eccsize;
int ppb_shift;
};
struct mxc_nand_host {
@ -1021,7 +1022,9 @@ static void preset_v3(struct mtd_info *mtd)
}
if (mtd->writesize) {
config2 |= NFC_V3_CONFIG2_PPB(ffs(mtd->erasesize / mtd->writesize) - 6);
config2 |= NFC_V3_CONFIG2_PPB(
ffs(mtd->erasesize / mtd->writesize) - 6,
host->devtype_data->ppb_shift);
host->eccsize = get_eccsize(mtd);
if (host->eccsize == 8)
config2 |= NFC_V3_CONFIG2_ECC_MODE_8;
@ -1234,7 +1237,7 @@ static const struct mxc_nand_devtype_data imx25_nand_devtype_data = {
.eccsize = 0,
};
/* v3: i.MX51, i.MX53 */
/* v3.2a: i.MX51 */
static const struct mxc_nand_devtype_data imx51_nand_devtype_data = {
.preset = preset_v3,
.send_cmd = send_cmd_v3,
@ -1258,6 +1261,34 @@ static const struct mxc_nand_devtype_data imx51_nand_devtype_data = {
.spare_len = 64,
.eccbytes = 0,
.eccsize = 0,
.ppb_shift = 7,
};
/* v3.2b: i.MX53 */
static const struct mxc_nand_devtype_data imx53_nand_devtype_data = {
.preset = preset_v3,
.send_cmd = send_cmd_v3,
.send_addr = send_addr_v3,
.send_page = send_page_v3,
.send_read_id = send_read_id_v3,
.get_dev_status = get_dev_status_v3,
.check_int = check_int_v3,
.irq_control = irq_control_v3,
.get_ecc_status = get_ecc_status_v3,
.ecclayout_512 = &nandv2_hw_eccoob_smallpage,
.ecclayout_2k = &nandv2_hw_eccoob_largepage,
.ecclayout_4k = &nandv2_hw_eccoob_smallpage, /* XXX: needs fix */
.select_chip = mxc_nand_select_chip_v1_v3,
.correct_data = mxc_nand_correct_data_v2_v3,
.irqpending_quirk = 0,
.needs_ip = 1,
.regs_offset = 0,
.spare0_offset = 0x1000,
.axi_offset = 0x1e00,
.spare_len = 64,
.eccbytes = 0,
.eccsize = 0,
.ppb_shift = 8,
};
#ifdef CONFIG_OF_MTD
@ -1274,6 +1305,9 @@ static const struct of_device_id mxcnd_dt_ids[] = {
}, {
.compatible = "fsl,imx51-nand",
.data = &imx51_nand_devtype_data,
}, {
.compatible = "fsl,imx53-nand",
.data = &imx53_nand_devtype_data,
},
{ /* sentinel */ }
};
@ -1327,8 +1361,10 @@ static int __init mxcnd_probe_pdata(struct mxc_nand_host *host)
host->devtype_data = &imx27_nand_devtype_data;
} else if (nfc_is_v21()) {
host->devtype_data = &imx25_nand_devtype_data;
} else if (nfc_is_v3_2()) {
} else if (nfc_is_v3_2a()) {
host->devtype_data = &imx51_nand_devtype_data;
} else if (nfc_is_v3_2b()) {
host->devtype_data = &imx53_nand_devtype_data;
} else
BUG();