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Revert "nand: make 1-bit software ECC configurable"

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This reverts commit 4fee6c2f29.

It breaks boards that currently rely on soft-ecc, as pointed out here:
http://patchwork.ozlabs.org/patch/140872/

The reverted patch should be resubmitted with documentation, and with the
CONFIG_MTD_ECC_SOFT selected from every board that needs it.  We could
start by looking at what NAND driver the board selects, and whether
that driver ever asks for soft ECC.

Signed-off-by: Scott Wood <scottwood@freescale.com>
This commit is contained in:
Scott Wood 2012-02-13 15:46:27 -06:00
parent 54e96680cb
commit 1f7b1743d3
3 changed files with 1 additions and 30 deletions
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25
include/linux/mtd/nand_ecc.h
View file

@ -15,10 +15,6 @@
struct mtd_info;
#if defined(CONFIG_MTD_ECC_SOFT)
static inline int mtd_nand_has_ecc_soft(void) { return 1; }
/*
* Calculate 3 byte ECC code for 256 byte block
*/
@ -29,25 +25,4 @@ int nand_calculate_ecc(struct mtd_info *mtd, const u_char *dat, u_char *ecc_code
*/
int nand_correct_data(struct mtd_info *mtd, u_char *dat, u_char *read_ecc, u_char *calc_ecc);
#else
static inline int mtd_nand_has_ecc_soft(void) { return 0; }
static inline int
nand_calculate_ecc(struct mtd_info *mtd, const u_char *dat, u_char *ecc_code)
{
return -1;
}
static inline int
nand_correct_data(struct mtd_info *mtd,
u_char *dat,
u_char *read_ecc,
u_char *calc_ecc)
{
return -1;
}
#endif
#endif /* __MTD_NAND_ECC_H__ */