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| author | Andy Green <andy@warmcat.com> | 2009-05-10 15:41:25 -0500 |
|---|---|---|
| committer | Ben Dooks <ben-linux@fluff.org> | 2009-05-30 17:54:40 +0100 |
| commit | 8c3e843d56f74889f3ff32202e82e3bc16d0d552 (patch) | |
| tree | e5ed7eaf768ebbf962154c5a3c1e324b973fba84 /drivers/mtd/nand/s3c2410.c | |
| parent | 3db72151aa4c246f8bdb8b3501972e1f1b32fe0d (diff) | |
| download | kernel_samsung_tuna-8c3e843d56f74889f3ff32202e82e3bc16d0d552.zip kernel_samsung_tuna-8c3e843d56f74889f3ff32202e82e3bc16d0d552.tar.gz kernel_samsung_tuna-8c3e843d56f74889f3ff32202e82e3bc16d0d552.tar.bz2 | |
[MTD] [NAND] S3C2410: NAND ECC by chip rather than global
This makes us take note about the chosen ECC mode per-chip and
not the one set globally.
Signed-off-by: Andy Green <andy@warmcat.com>
Signed-off-by: Nelson Castillo <arhuaco@freaks-unidos.net>
[ben-linux@fluff.org: andy@openmoko.com => andy@warmcat.com, rewrite subject]
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Diffstat (limited to 'drivers/mtd/nand/s3c2410.c')
| -rw-r--r-- | drivers/mtd/nand/s3c2410.c | 34 |
1 files changed, 25 insertions, 9 deletions
diff --git a/drivers/mtd/nand/s3c2410.c b/drivers/mtd/nand/s3c2410.c index a2d1c70..daa4af9 100644 --- a/drivers/mtd/nand/s3c2410.c +++ b/drivers/mtd/nand/s3c2410.c @@ -819,6 +819,21 @@ static void s3c2410_nand_init_chip(struct s3c2410_nand_info *info, if (set->disable_ecc) chip->ecc.mode = NAND_ECC_NONE; + + switch (chip->ecc.mode) { + case NAND_ECC_NONE: + dev_info(info->device, "NAND ECC disabled\n"); + break; + case NAND_ECC_SOFT: + dev_info(info->device, "NAND soft ECC\n"); + break; + case NAND_ECC_HW: + dev_info(info->device, "NAND hardware ECC\n"); + break; + default: + dev_info(info->device, "NAND ECC UNKNOWN\n"); + break; + } } /** @@ -840,18 +855,19 @@ static void s3c2410_nand_update_chip(struct s3c2410_nand_info *info, dev_dbg(info->device, "chip %p => page shift %d\n", chip, chip->page_shift); - if (hardware_ecc) { + if (chip->ecc.mode != NAND_ECC_HW) + return; + /* 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; - } + 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; } } |