diff options
| -rw-r--r-- | drivers/mtd/devices/elm.c | 18 | ||||
| -rw-r--r-- | include/linux/platform_data/elm.h | 7 |
2 files changed, 11 insertions, 14 deletions
diff --git a/drivers/mtd/devices/elm.c b/drivers/mtd/devices/elm.c index c51752a..4fbfaf6 100644 --- a/drivers/mtd/devices/elm.c +++ b/drivers/mtd/devices/elm.c @@ -84,6 +84,7 @@ struct elm_info { struct list_head list; enum bch_ecc bch_type; struct elm_registers elm_regs; + int ecc_syndrome_size; }; static LIST_HEAD(elm_devices); @@ -126,7 +127,8 @@ int elm_config(struct device *dev, enum bch_ecc bch_type, reg_val = (bch_type & ECC_BCH_LEVEL_MASK) | (ELM_ECC_SIZE << 16); elm_write_reg(info, ELM_LOCATION_CONFIG, reg_val); - info->bch_type = bch_type; + info->bch_type = bch_type; + info->ecc_syndrome_size = ecc_syndrome_size; return 0; } @@ -175,10 +177,8 @@ static void elm_load_syndrome(struct elm_info *info, elm_configure_page_mode(info, i, true); offset = ELM_SYNDROME_FRAGMENT_0 + SYNDROME_FRAGMENT_REG_SIZE * i; - - /* BCH8 */ - if (info->bch_type) { - + switch (info->bch_type) { + case BCH8_ECC: /* syndrome fragment 0 = ecc[9-12B] */ val = cpu_to_be32(*(u32 *) &ecc[9]); elm_write_reg(info, offset, val); @@ -197,7 +197,8 @@ static void elm_load_syndrome(struct elm_info *info, offset += 4; val = ecc[0]; elm_write_reg(info, offset, val); - } else { + break; + case BCH4_ECC: /* syndrome fragment 0 = ecc[20-52b] bits */ val = (cpu_to_be32(*(u32 *) &ecc[3]) >> 4) | ((ecc[2] & 0xf) << 28); @@ -207,11 +208,14 @@ static void elm_load_syndrome(struct elm_info *info, offset += 4; val = cpu_to_be32(*(u32 *) &ecc[0]) >> 12; elm_write_reg(info, offset, val); + break; + default: + pr_err("invalid config bch_type\n"); } } /* Update ecc pointer with ecc byte size */ - ecc += info->bch_type ? BCH8_SIZE : BCH4_SIZE; + ecc += info->ecc_syndrome_size; } } diff --git a/include/linux/platform_data/elm.h b/include/linux/platform_data/elm.h index 6e37156..4edb406 100644 --- a/include/linux/platform_data/elm.h +++ b/include/linux/platform_data/elm.h @@ -26,13 +26,6 @@ enum bch_ecc { /* ELM support 8 error syndrome process */ #define ERROR_VECTOR_MAX 8 -#define BCH8_ECC_OOB_BYTES 13 -#define BCH4_ECC_OOB_BYTES 7 -/* RBL requires 14 byte even though BCH8 uses only 13 byte */ -#define BCH8_SIZE (BCH8_ECC_OOB_BYTES + 1) -/* Uses 1 extra byte to handle erased pages */ -#define BCH4_SIZE (BCH4_ECC_OOB_BYTES + 1) - /** * struct elm_errorvec - error vector for elm * @error_reported: set true for vectors error is reported |