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[s3c24xx] Add 2.6.31 patches

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git-svn-id: svn://svn.openwrt.org/openwrt/trunk@17665 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
lars
2009-09-21 18:29:46 +00:00
parent dac1d868d3
commit e2813918b9
156 changed files with 51350 additions and 0 deletions
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61
target/linux/s3c24xx/patches-2.6.31/300-s3c-nand.patch Normal file
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@@ -0,0 +1,61 @@
diff --git a/arch/arm/plat-s3c/include/plat/nand.h b/arch/arm/plat-s3c/include/plat/nand.h
index 18f9588..fff94e6 100644
--- a/arch/arm/plat-s3c/include/plat/nand.h
+++ b/arch/arm/plat-s3c/include/plat/nand.h
@@ -33,6 +33,8 @@ struct s3c2410_nand_set {
int nr_chips;
int nr_partitions;
+ unsigned int flags;
+#define S3C2410_NAND_BBT 0x0001
char *name;
int *nr_map;
struct mtd_partition *partitions;
@@ -51,6 +53,9 @@ struct s3c2410_platform_nand {
int nr_sets;
struct s3c2410_nand_set *sets;
+ /* force software_ecc at runtime */
+ int software_ecc;
+
void (*select_chip)(struct s3c2410_nand_set *,
int chip);
};
diff --git a/drivers/mtd/nand/s3c2410.c b/drivers/mtd/nand/s3c2410.c
index 11dc7e6..59637ac 100644
--- a/drivers/mtd/nand/s3c2410.c
+++ b/drivers/mtd/nand/s3c2410.c
@@ -491,7 +491,7 @@ static int s3c2410_nand_correct_data(struct mtd_info *mtd, u_char *dat,
if ((diff0 & ~(1<<fls(diff0))) == 0)
return 1;
- return -1;
+ return -EBADMSG;
}
/* ECC functions
@@ -774,9 +783,13 @@ static void s3c2410_nand_init_chip(struct s3c2410_nand_info *info,
chip->select_chip = s3c2410_nand_select_chip;
chip->chip_delay = 50;
chip->priv = nmtd;
- chip->options = 0;
chip->controller = &info->controller;
+ if (set->flags & S3C2410_NAND_BBT)
+ chip->options = NAND_USE_FLASH_BBT;
+ else
+ chip->options = 0;
+
switch (info->cpu_type) {
case TYPE_S3C2410:
chip->IO_ADDR_W = regs + S3C2410_NFDATA;
@@ -816,7 +829,7 @@ 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->software_ecc && hardware_ecc) {
chip->ecc.calculate = s3c2410_nand_calculate_ecc;
chip->ecc.correct = s3c2410_nand_correct_data;
chip->ecc.mode = NAND_ECC_HW;