diff options
| author | Holger Freyther <zecke@openmoko.org> | 2008-11-19 17:10:51 +0000 |
|---|---|---|
| committer | Lars-Peter Clausen <lars@metafoo.de> | 2009-10-17 03:22:32 +0200 |
| commit | b00a17c6c5a6796117bd67571669cc02ab0c9913 (patch) | |
| tree | c7e4bc005b8c95af7d10887c7dff4cf2d98f3468 | |
| parent | fe763bb24afaccc4ea591b00c554957735094f13 (diff) | |
mtd: s3c2410_nand: Add config option to disable hw ecc at runtime
This patch adds a flag to the s3c2410_nand platform data, which configures
whether hardware ecc is used for that chip.
Currently hardware ecc is used if it was compiled into the kernel. But if you
want to build a kernel which runs on multiple devices you might have a
configuration where you have devices which require hw ecc as well as devices
which want software ecc.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
| -rw-r--r-- | arch/arm/plat-s3c/include/plat/nand.h | 1 | ||||
| -rw-r--r-- | drivers/mtd/nand/s3c2410.c | 2 |
2 files changed, 2 insertions, 1 deletions
diff --git a/arch/arm/plat-s3c/include/plat/nand.h b/arch/arm/plat-s3c/include/plat/nand.h index 18f958801e6..723ab032059 100644 --- a/arch/arm/plat-s3c/include/plat/nand.h +++ b/arch/arm/plat-s3c/include/plat/nand.h @@ -47,6 +47,7 @@ struct s3c2410_platform_nand { int twrph1; /* time for release CLE/ALE from nWE/nOE inactive */ unsigned int ignore_unset_ecc:1; + unsigned int software_ecc:1; /* force software ecc at runtime */ int nr_sets; struct s3c2410_nand_set *sets; diff --git a/drivers/mtd/nand/s3c2410.c b/drivers/mtd/nand/s3c2410.c index 11dc7e69c4f..7dc854c3fd8 100644 --- a/drivers/mtd/nand/s3c2410.c +++ b/drivers/mtd/nand/s3c2410.c @@ -816,7 +816,7 @@ static void s3c2410_nand_init_chip(struct s3c2410_nand_info *info, nmtd->mtd.owner = THIS_MODULE; nmtd->set = set; - if (hardware_ecc) { + if (!(info->platform && info->platform->software_ecc) && hardware_ecc) { chip->ecc.calculate = s3c2410_nand_calculate_ecc; chip->ecc.correct = s3c2410_nand_correct_data; chip->ecc.mode = NAND_ECC_HW; |