Mirrors/u-boot
2
0
Fork 0
mirror of https://github.com/AsahiLinux/u-boot synced 2024-11-26 06:30:39 +00:00
Code Issues Projects Releases Packages Wiki Activity

mtd: nand: omap: fix HAM1_SW ecc using default value for ecc.size

Browse source 
Commit "mtd: nand: omap: enable BCH ECC scheme using ELM for generic
platform" (d016dc42ce) changed the way
software ECC is configured, both during boot, and during ecc switch, in a way
that is not backwards compatible with older systems:

Older version of omap_gpmc.c always assigned ecc.size = 0 when configuring
for software ecc, relying on nand_scan_tail() to select a default for ecc.size
(256), while the new version of omap_gpmc.c assigns ecc.size = pagesize,
which is likely to not be 256.

Since 1 bit hamming sw ecc is only meant to be used by legacy devices, revert
to the original behavior.

Cc: Igor Grinberg <grinberg@compulab.co.il>
Cc: Tom Rini <trini@ti.com>
Cc: Scott Wood <scottwood@freescale.com>
Cc: Pekon Gupta <pekon@ti.com>
Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il>
Acked-by: Pekon Gupta <pekon@ti.com>
This commit is contained in:
Nikita Kiryanov 2013-12-12 15:19:31 +02:00 committed by Scott Wood
parent 5d7a49b930
commit 2528460c38
1 changed files with 1 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
drivers/mtd/nand/omap_gpmc.c
View file

@ -776,7 +776,7 @@ static int omap_select_ecc_scheme(struct nand_chip *nand,
bch_priv.type = 0;
nand->ecc.mode = NAND_ECC_SOFT;
nand->ecc.layout = NULL;
nand->ecc.size = pagesize;
nand->ecc.size = 0;
bch->ecc_scheme = OMAP_ECC_HAM1_CODE_SW;
break;