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authorAndy Green <andy@warmcat.com>2009-05-10 15:41:25 -0500
committerBen Dooks <ben-linux@fluff.org>2009-05-30 17:54:40 +0100
commit8c3e843d56f74889f3ff32202e82e3bc16d0d552 (patch)
treee5ed7eaf768ebbf962154c5a3c1e324b973fba84 /drivers
parent3db72151aa4c246f8bdb8b3501972e1f1b32fe0d (diff)
[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')
-rw-r--r--drivers/mtd/nand/s3c2410.c34
1 files changed, 25 insertions, 9 deletions
diff --git a/drivers/mtd/nand/s3c2410.c b/drivers/mtd/nand/s3c2410.c
index a2d1c70c522..daa4af91820 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;
}
}