diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/mtd/nand/mxc_nand.c | 22 |
1 files changed, 21 insertions, 1 deletions
diff --git a/drivers/mtd/nand/mxc_nand.c b/drivers/mtd/nand/mxc_nand.c index 260d77d5cc21..2426db88db36 100644 --- a/drivers/mtd/nand/mxc_nand.c +++ b/drivers/mtd/nand/mxc_nand.c @@ -960,6 +960,23 @@ static int get_eccsize(struct mtd_info *mtd) return 8; } +static void ecc_8bit_layout_4k(struct nand_ecclayout *layout) +{ + int i, j; + + layout->eccbytes = 8*18; + for (i = 0; i < 8; i++) + for (j = 0; j < 18; j++) + layout->eccpos[i*18 + j] = i*26 + j + 7; + + layout->oobfree[0].offset = 2; + layout->oobfree[0].length = 4; + for (i = 1; i < 8; i++) { + layout->oobfree[i].offset = i*26; + layout->oobfree[i].length = 7; + } +} + static void preset_v1(struct mtd_info *mtd) { struct nand_chip *nand_chip = mtd->priv; @@ -1636,8 +1653,11 @@ static int mxcnd_probe(struct platform_device *pdev) if (mtd->writesize == 2048) this->ecc.layout = host->devtype_data->ecclayout_2k; - else if (mtd->writesize == 4096) + else if (mtd->writesize == 4096) { this->ecc.layout = host->devtype_data->ecclayout_4k; + if (get_eccsize(mtd) == 8) + ecc_8bit_layout_4k(this->ecc.layout); + } /* * Experimentation shows that i.MX NFC can only handle up to 218 oob |