Commit 258b21fc authored by Josh Wu's avatar Josh Wu Committed by Andreas Bießmann

atmel_nand: Add 32 bit ecc support for sama5d2 chip

Also if minimum ecc requirment is bigger then what we support, then just
use our maxium pmecc support.
But it is not safe, so we'll output a warning about this.
Signed-off-by: 's avatarJosh Wu <josh.wu@atmel.com>
Acked-by: 's avatarScott Wood <scottwood@freescale.com>
Reviewed-by: 's avatarAndreas Bießmann <andreas.devel@googlemail.com>
parent fa651f5d
......@@ -80,6 +80,7 @@ static struct nand_ecclayout atmel_pmecc_oobinfo;
* 8-bits 13-bytes 14-bytes
* 12-bits 20-bytes 21-bytes
* 24-bits 39-bytes 42-bytes
* 32-bits 52-bytes 56-bytes
*/
static int pmecc_get_ecc_bytes(int cap, int sector_size)
{
......@@ -638,6 +639,9 @@ static void atmel_pmecc_core_init(struct mtd_info *mtd)
case 24:
val = PMECC_CFG_BCH_ERR24;
break;
case 32:
val = PMECC_CFG_BCH_ERR32;
break;
}
if (host->pmecc_sector_size == 512)
......@@ -723,7 +727,11 @@ static int pmecc_choose_ecc(struct atmel_nand_host *host,
else if (*cap <= 24)
host->pmecc_corr_cap = 24;
else
return -EINVAL;
#ifdef CONFIG_SAMA5D2
host->pmecc_corr_cap = 32;
#else
host->pmecc_corr_cap = 24;
#endif
}
if (host->pmecc_sector_size == 0) {
/* use the most fitable sector size (the near smaller one ) */
......
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