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| author | Sandeep Paulraj <s-paulraj@ti.com> | 2009-11-19 23:04:42 -0500 |
|---|---|---|
| committer | Scott Wood <scottwood@freescale.com> | 2009-11-20 13:15:38 -0600 |
| commit | 10a5a7991258019af155bc19b3b246aaa708b0e2 (patch) | |
| tree | 81c74409687b8a379381f6b6462fc57e8b05a9e5 | |
| parent | 5e1ded558b7cc28a62c14598f6437023b6262444 (diff) | |
| download | u-boot-imx-10a5a7991258019af155bc19b3b246aaa708b0e2.zip u-boot-imx-10a5a7991258019af155bc19b3b246aaa708b0e2.tar.gz u-boot-imx-10a5a7991258019af155bc19b3b246aaa708b0e2.tar.bz2 | |
NAND: Add Support for 4K page size in DaVinci NAND driver
This patch adds support for NAND devices with a page size of
4K in the DaVinci NAND driver. The layout matches the layout that TI uses
for 4K page size NAND devices in the kernel NAND driver.
Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
| -rw-r--r-- | drivers/mtd/nand/davinci_nand.c | 23 |
1 files changed, 16 insertions, 7 deletions
diff --git a/drivers/mtd/nand/davinci_nand.c b/drivers/mtd/nand/davinci_nand.c index eabaf3e..41a9568 100644 --- a/drivers/mtd/nand/davinci_nand.c +++ b/drivers/mtd/nand/davinci_nand.c @@ -182,13 +182,7 @@ static int nand_davinci_correct_data(struct mtd_info *mtd, u_char *dat, u_char * #ifdef CONFIG_SYS_NAND_4BIT_HW_ECC_OOBFIRST static struct nand_ecclayout nand_davinci_4bit_layout_oobfirst = { -/* - * TI uses a different layout for 4K page deviecs. Since the - * eccpos filed can hold only a limited number of entries, adding - * support for 4K page will result in compilation warnings - * 4K Support will be added later - */ -#ifdef CONFIG_SYS_NAND_PAGE_2K +#if defined(CONFIG_SYS_NAND_PAGE_2K) .eccbytes = 40, .eccpos = { 24, 25, 26, 27, 28, @@ -200,6 +194,21 @@ static struct nand_ecclayout nand_davinci_4bit_layout_oobfirst = { .oobfree = { {.offset = 2, .length = 22, }, }, +#elif defined(CONFIG_SYS_NAND_PAGE_4K) + .eccbytes = 80, + .eccpos = { + 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, + 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, + 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, + 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, + 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, + 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, + 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, + 118, 119, 120, 121, 122, 123, 124, 125, 126, 127, + }, + .oobfree = { + {.offset = 2, .length = 46, }, + }, #endif }; |