diff options
Diffstat (limited to 'target/linux/s3c24xx/patches/0021-s3c24xx-nand-largepage.patch.patch')
| -rwxr-xr-x | target/linux/s3c24xx/patches/0021-s3c24xx-nand-largepage.patch.patch | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/target/linux/s3c24xx/patches/0021-s3c24xx-nand-largepage.patch.patch b/target/linux/s3c24xx/patches/0021-s3c24xx-nand-largepage.patch.patch new file mode 100755 index 0000000000..383ae6a739 --- /dev/null +++ b/target/linux/s3c24xx/patches/0021-s3c24xx-nand-largepage.patch.patch @@ -0,0 +1,58 @@ +From 68108d95040732cebf06296affaaeaaf76029c3d Mon Sep 17 00:00:00 2001 +From: mokopatches <mokopatches@openmoko.org> +Date: Wed, 16 Jul 2008 14:44:50 +0100 +Subject: [PATCH] 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> +--- + 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 cd2e1da..6e7a5b9 100644 +--- a/drivers/mtd/nand/s3c2410.c ++++ b/drivers/mtd/nand/s3c2410.c +@@ -726,6 +726,34 @@ 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 +-- +1.5.6.3 + |