diff options
| author | mokopatches <mokopatches@openmoko.org> | 2008-11-19 17:03:14 +0000 |
|---|---|---|
| committer | warmcat <andy@warmcat.com> | 2008-11-19 17:03:14 +0000 |
| commit | 0792860061d14d0947973435ab644eb88dd0407a (patch) | |
| tree | 9ede8b80aa11ee12aacd3ef0fc494e381f277bb1 /drivers/mtd | |
| parent | cd901eb7fa79b896a2384a913c11d625170cad88 (diff) | |
s3c24xx-nand-largepage.patch
MTD: S3C24XX large page NAND support
This adds support for using large page NAND devices
with the S3C24XX NAND controller. This also adds the
file Documentation/arm/Samsung-S3C24XX/NAND.txt to
describe the differences.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Diffstat (limited to 'drivers/mtd')
| -rw-r--r-- | drivers/mtd/nand/s3c2410.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/drivers/mtd/nand/s3c2410.c b/drivers/mtd/nand/s3c2410.c index 404960d342a..a21bc764aec 100644 --- a/drivers/mtd/nand/s3c2410.c +++ b/drivers/mtd/nand/s3c2410.c @@ -806,6 +806,34 @@ static void s3c2410_nand_update_chip(struct s3c2410_nand_info *info, } } +/* s3c2410_nand_update_chip + * + * post-probe chip update, to change any items, such as the + * layout for large page nand + */ + +static void s3c2410_nand_update_chip(struct s3c2410_nand_info *info, + struct s3c2410_nand_mtd *nmtd) +{ + struct nand_chip *chip = &nmtd->chip; + + printk("%s: chip %p: %d\n", __func__, chip, chip->page_shift); + + if (hardware_ecc) { + /* change the behaviour depending on wether we are using + * the large or small page nand device */ + + if (chip->page_shift > 10) { + chip->ecc.size = 256; + chip->ecc.bytes = 3; + } else { + chip->ecc.size = 512; + chip->ecc.bytes = 3; + chip->ecc.layout = &nand_hw_eccoob; + } + } +} + /* s3c2410_nand_probe * * called by device layer when it finds a device matching |