diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/mtd/nand/pxa3xx_nand.c | 40 |
1 files changed, 16 insertions, 24 deletions
diff --git a/drivers/mtd/nand/pxa3xx_nand.c b/drivers/mtd/nand/pxa3xx_nand.c index f722ba70aaac..0599a880e347 100644 --- a/drivers/mtd/nand/pxa3xx_nand.c +++ b/drivers/mtd/nand/pxa3xx_nand.c @@ -1332,13 +1332,9 @@ static int pxa3xx_nand_sensing(struct pxa3xx_nand_info *info) static int pxa_ecc_init(struct pxa3xx_nand_info *info, struct nand_ecc_ctrl *ecc, - int strength, int page_size) + int strength, int ecc_stepsize, int page_size) { - /* - * We don't use strength here as the PXA variant - * is used with non-ONFI compliant devices. - */ - if (page_size == 2048) { + if (strength == 1 && ecc_stepsize == 512 && page_size == 2048) { info->chunk_size = 2048; info->spare_size = 40; info->ecc_size = 24; @@ -1347,7 +1343,7 @@ static int pxa_ecc_init(struct pxa3xx_nand_info *info, ecc->strength = 1; return 1; - } else if (page_size == 512) { + } else if (strength == 1 && ecc_stepsize == 512 && page_size == 512) { info->chunk_size = 512; info->spare_size = 8; info->ecc_size = 8; @@ -1355,19 +1351,12 @@ static int pxa_ecc_init(struct pxa3xx_nand_info *info, ecc->size = 512; ecc->strength = 1; return 1; - } - return 0; -} -static int armada370_ecc_init(struct pxa3xx_nand_info *info, - struct nand_ecc_ctrl *ecc, - int strength, int ecc_stepsize, int page_size) -{ /* * Required ECC: 4-bit correction per 512 bytes * Select: 16-bit correction per 2048 bytes */ - if (strength == 4 && ecc_stepsize == 512 && page_size == 4096) { + } else if (strength == 4 && ecc_stepsize == 512 && page_size == 4096) { info->ecc_bch = 1; info->chunk_size = 2048; info->spare_size = 32; @@ -1408,6 +1397,7 @@ static int pxa3xx_nand_scan(struct mtd_info *mtd) uint32_t id = -1; uint64_t chipsize; int i, ret, num; + uint16_t ecc_strength, ecc_step; if (pdata->keep_config && !pxa3xx_nand_detect_config(info)) goto KEEP_CONFIG; @@ -1502,15 +1492,17 @@ KEEP_CONFIG: } } - if (info->variant == PXA3XX_NAND_VARIANT_ARMADA370) - ret = armada370_ecc_init(info, &chip->ecc, - chip->ecc_strength_ds, - chip->ecc_step_ds, - mtd->writesize); - else - ret = pxa_ecc_init(info, &chip->ecc, - chip->ecc_strength_ds, - mtd->writesize); + ecc_strength = chip->ecc_strength_ds; + ecc_step = chip->ecc_step_ds; + + /* Set default ECC strength requirements on non-ONFI devices */ + if (ecc_strength < 1 && ecc_step < 1) { + ecc_strength = 1; + ecc_step = 512; + } + + ret = pxa_ecc_init(info, &chip->ecc, ecc_strength, + ecc_step, mtd->writesize); if (!ret) { dev_err(&info->pdev->dev, "ECC strength %d at page size %d is not supported\n", |