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nand, davinci: add special UBL ecc position

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enable the RBL/UBL ECC layout through
CONFIG_NAND_6BYTES_OOB_FREE_10BYTES_ECC define

see for more info:
http://processors.wiki.ti.com/index.php/DM365_Nand_ECC_layout

Signed-off-by: Heiko Schocher <hs@denx.de>
Cc: Tom Rini <trini@ti.com>
Cc: Scott Wood <scottwood@freescale.com>
This commit is contained in:
Heiko Schocher 2013-09-06 05:21:23 +02:00 committed by Tom Rini
parent 1d7b289ce1
commit 2fff63c2a5
1 changed files with 12 additions and 0 deletions
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12
drivers/mtd/nand/davinci_nand.c
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@ -266,6 +266,17 @@ static int nand_davinci_correct_data(struct mtd_info *mtd, u_char *dat,
static struct nand_ecclayout nand_davinci_4bit_layout_oobfirst = { static struct nand_ecclayout nand_davinci_4bit_layout_oobfirst = {
#if defined(CONFIG_SYS_NAND_PAGE_2K) #if defined(CONFIG_SYS_NAND_PAGE_2K)
.eccbytes = 40, .eccbytes = 40,
#ifdef CONFIG_NAND_6BYTES_OOB_FREE_10BYTES_ECC
.eccpos = {
6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
22, 23, 24, 25, 26, 27, 28, 29, 30, 31,
38, 39, 40, 41, 42, 43, 44, 45, 46, 47,
54, 55, 56, 57, 58, 59, 60, 61, 62, 63,
},
.oobfree = {
{2, 4}, {16, 6}, {32, 6}, {48, 6},
},
#else
.eccpos = { .eccpos = {
24, 25, 26, 27, 28, 24, 25, 26, 27, 28,
29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38,
@ -276,6 +287,7 @@ static struct nand_ecclayout nand_davinci_4bit_layout_oobfirst = {
.oobfree = { .oobfree = {
{.offset = 2, .length = 22, }, {.offset = 2, .length = 22, },
}, },
#endif /* #ifdef CONFIG_NAND_6BYTES_OOB_FREE_10BYTES_ECC */
#elif defined(CONFIG_SYS_NAND_PAGE_4K) #elif defined(CONFIG_SYS_NAND_PAGE_4K)
.eccbytes = 80, .eccbytes = 80,
.eccpos = { .eccpos = {