From: Josh Wu josh.wu@atmel.com
Since ecc_{strength,step}_ds is introduced in nand_chip structure for minimum ecc requirements. So we can use them directly and remove our own get_onfi_ecc_param function.
Signed-off-by: Josh Wu josh.wu@atmel.com Reviewed-by: Andreas Bießmann andreas.devel@googlemail.com Signed-off-by: Wenyou Yang wenyou.yang@atmel.com ---
Changes in v2: None
drivers/mtd/nand/atmel_nand.c | 44 +++++++---------------------------------- 1 file changed, 7 insertions(+), 37 deletions(-)
diff --git a/drivers/mtd/nand/atmel_nand.c b/drivers/mtd/nand/atmel_nand.c index 0d4f327..e179f74 100644 --- a/drivers/mtd/nand/atmel_nand.c +++ b/drivers/mtd/nand/atmel_nand.c @@ -677,34 +677,6 @@ static void atmel_pmecc_core_init(struct mtd_info *mtd)
#ifdef CONFIG_SYS_NAND_ONFI_DETECTION /* - * get_onfi_ecc_param - Get ECC requirement from ONFI parameters - * @ecc_bits: store the ONFI ECC correct bits capbility - * @sector_size: in how many bytes that ONFI require to correct @ecc_bits - * - * Returns -1 if ONFI parameters is not supported. In this case @ecc_bits, - * @sector_size are initialize to 0. - * 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; -} - -/* * pmecc_choose_ecc - Get ecc requirement from ONFI parameters. If * pmecc_corr_cap or pmecc_sector_size is 0, then set it as * ONFI ECC parameters. @@ -724,17 +696,15 @@ static int pmecc_choose_ecc(struct atmel_nand_host *host, /* Get ECC requirement from ONFI parameters */ *cap = *sector_size = 0; if (chip->onfi_version) { - if (!get_onfi_ecc_param(chip, cap, sector_size)) { - MTDDEBUG(MTD_DEBUG_LEVEL1, "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"); + *cap = chip->ecc_strength_ds; + *sector_size = chip->ecc_step_ds; + MTDDEBUG(MTD_DEBUG_LEVEL1, "ONFI params, minimum required ECC: %d bits in %d bytes\n", + *cap, *sector_size); } + if (*cap == 0 && *sector_size == 0) { - /* Non-ONFI compliant or use extended ONFI parameters */ + /* Non-ONFI compliant */ + dev_info(host->dev, "NAND chip is not ONFI compliant, assume ecc_bits is 2 in 512 bytes\n"); *cap = 2; *sector_size = 512; }