diff options
Diffstat (limited to 'drivers/mtd/nand/pxa3xx_nand.c')
| -rw-r--r-- | drivers/mtd/nand/pxa3xx_nand.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/drivers/mtd/nand/pxa3xx_nand.c b/drivers/mtd/nand/pxa3xx_nand.c index 31aae535a02a..2a7a0b27ac38 100644 --- a/drivers/mtd/nand/pxa3xx_nand.c +++ b/drivers/mtd/nand/pxa3xx_nand.c @@ -286,6 +286,16 @@ static struct nand_bbt_descr bbt_mirror_descr = { .pattern = bbt_mirror_pattern }; +static struct nand_ecclayout ecc_layout_2KB_bch4bit = { + .eccbytes = 32, + .eccpos = { + 32, 33, 34, 35, 36, 37, 38, 39, + 40, 41, 42, 43, 44, 45, 46, 47, + 48, 49, 50, 51, 52, 53, 54, 55, + 56, 57, 58, 59, 60, 61, 62, 63}, + .oobfree = { {2, 30} } +}; + static struct nand_ecclayout ecc_layout_4KB_bch4bit = { .eccbytes = 64, .eccpos = { @@ -1360,6 +1370,17 @@ static int pxa_ecc_init(struct pxa3xx_nand_info *info, * Required ECC: 4-bit correction per 512 bytes * Select: 16-bit correction per 2048 bytes */ + } else if (strength == 4 && ecc_stepsize == 512 && page_size == 2048) { + info->ecc_bch = 1; + info->chunk_size = 2048; + info->spare_size = 32; + info->ecc_size = 32; + ecc->mode = NAND_ECC_HW; + ecc->size = info->chunk_size; + ecc->layout = &ecc_layout_2KB_bch4bit; + ecc->strength = 16; + return 1; + } else if (strength == 4 && ecc_stepsize == 512 && page_size == 4096) { info->ecc_bch = 1; info->chunk_size = 2048; |