@@ -1062,30 +1062,6 @@ static void atmel_pmecc_core_init(struct mtd_info *mtd)
}
/*
- * Get ECC requirement in ONFI parameters, returns -1 if ONFI
- * parameters is not supported.
- * return 0 if success to get the ECC requirement.
- */
-static int get_onfi_ecc_param(struct nand_chip *chip,
- int *ecc_bits, int *sector_size)
-{
- *ecc_bits = *sector_size = 0;
-
- if (chip->onfi_params.ecc_bits == 0xff)
- /* TODO: the sector_size and ecc_bits need to be find in
- * extended ecc parameter, currently we don't support it.
- */
- return -1;
-
- *ecc_bits = chip->onfi_params.ecc_bits;
-
- /* The default sector size (ecc codeword size) is 512 */
- *sector_size = 512;
-
- return 0;
-}
-
-/*
* Get ecc requirement from ONFI parameters ecc requirement.
* If pmecc-cap, pmecc-sector-size in DTS are not specified, this function
* will set them according to ONFI ecc requirement. Otherwise, use the
@@ -1096,19 +1072,15 @@ static int pmecc_choose_ecc(struct atmel_nand_host *host,
int *cap, int *sector_size)
{
/* Get ECC requirement from ONFI parameters */
- *cap = *sector_size = 0;
if (host->nand_chip.onfi_version) {
- if (!get_onfi_ecc_param(&host->nand_chip, cap, sector_size))
- dev_info(host->dev, "ONFI params, minimum required ECC: %d bits in %d bytes\n",
+ *cap = host->nand_chip.ecc_strength_ds;
+ *sector_size = host->nand_chip.ecc_step_ds;
+ dev_info(host->dev, "ONFI params, minimum required ECC: %d bits in %d bytes\n",
*cap, *sector_size);
- else
- dev_info(host->dev, "NAND chip ECC reqirement is in Extended ONFI parameter, we don't support yet.\n");
} else {
- dev_info(host->dev, "NAND chip is not ONFI compliant, assume ecc_bits is 2 in 512 bytes");
- }
- if (*cap == 0 && *sector_size == 0) {
*cap = 2;
*sector_size = 512;
+ dev_info(host->dev, "NAND chip is not ONFI compliant, assume ecc_bits is 2 in 512 bytes");
}
/* If dts file doesn't specify then use the one in ONFI parameters */
commit d99650181 (mtd: get the ECC info from the parameter page for ONFI nand) will get ecc_strength_ds and ecc_step_ds during ONFI detecting. So we can use them directly and remove our own get_onfi_ecc_param function. Signed-off-by: Josh Wu <josh.wu@atmel.com> --- drivers/mtd/nand/atmel_nand.c | 36 ++++-------------------------------- 1 file changed, 4 insertions(+), 32 deletions(-)