Commit "mtd: nand: omap: enable BCH ECC scheme using ELM for generic platform" (d016dc42cedbf6102e100fa9ecb58462edfb14f8) 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 <[email protected]> Cc: Tom Rini <[email protected]> Cc: Scott Wood <[email protected]> Cc: Pekon Gupta <[email protected]> Signed-off-by: Nikita Kiryanov <[email protected]> --- Changes in V2: - reworded commit title to better reflect what is being affected (Pekon Gupta) drivers/mtd/nand/omap_gpmc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/mtd/nand/omap_gpmc.c b/drivers/mtd/nand/omap_gpmc.c index 23a961c..e61788f 100644 --- a/drivers/mtd/nand/omap_gpmc.c +++ b/drivers/mtd/nand/omap_gpmc.c @@ -774,7 +774,7 @@ 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; -- 1.8.1.2 _______________________________________________ U-Boot mailing list [email protected] http://lists.denx.de/mailman/listinfo/u-boot
