diff options
Diffstat (limited to 'drivers/mtd/nand/spi/gigadevice.c')
| -rw-r--r-- | drivers/mtd/nand/spi/gigadevice.c | 69 |
1 files changed, 60 insertions, 9 deletions
diff --git a/drivers/mtd/nand/spi/gigadevice.c b/drivers/mtd/nand/spi/gigadevice.c index 33c67403c4aa..1dd1c5898093 100644 --- a/drivers/mtd/nand/spi/gigadevice.c +++ b/drivers/mtd/nand/spi/gigadevice.c @@ -13,7 +13,10 @@ #define GD5FXGQ4XA_STATUS_ECC_1_7_BITFLIPS (1 << 4) #define GD5FXGQ4XA_STATUS_ECC_8_BITFLIPS (3 << 4) -#define GD5FXGQ4UEXXG_REG_STATUS2 0xf0 +#define GD5FXGQ5XE_STATUS_ECC_1_4_BITFLIPS (1 << 4) +#define GD5FXGQ5XE_STATUS_ECC_4_BITFLIPS (3 << 4) + +#define GD5FXGQXXEXXG_REG_STATUS2 0xf0 #define GD5FXGQ4UXFXXG_STATUS_ECC_MASK (7 << 4) #define GD5FXGQ4UXFXXG_STATUS_ECC_NO_BITFLIPS (0 << 4) @@ -102,7 +105,7 @@ static int gd5fxgq4xa_ecc_get_status(struct spinand_device *spinand, return -EINVAL; } -static int gd5fxgq4_variant2_ooblayout_ecc(struct mtd_info *mtd, int section, +static int gd5fxgqx_variant2_ooblayout_ecc(struct mtd_info *mtd, int section, struct mtd_oob_region *region) { if (section) @@ -114,7 +117,7 @@ static int gd5fxgq4_variant2_ooblayout_ecc(struct mtd_info *mtd, int section, return 0; } -static int gd5fxgq4_variant2_ooblayout_free(struct mtd_info *mtd, int section, +static int gd5fxgqx_variant2_ooblayout_free(struct mtd_info *mtd, int section, struct mtd_oob_region *region) { if (section) @@ -127,9 +130,10 @@ static int gd5fxgq4_variant2_ooblayout_free(struct mtd_info *mtd, int section, return 0; } -static const struct mtd_ooblayout_ops gd5fxgq4_variant2_ooblayout = { - .ecc = gd5fxgq4_variant2_ooblayout_ecc, - .free = gd5fxgq4_variant2_ooblayout_free, +/* Valid for Q4/Q5 and Q6 (untested) devices */ +static const struct mtd_ooblayout_ops gd5fxgqx_variant2_ooblayout = { + .ecc = gd5fxgqx_variant2_ooblayout_ecc, + .free = gd5fxgqx_variant2_ooblayout_free, }; static int gd5fxgq4xc_ooblayout_256_ecc(struct mtd_info *mtd, int section, @@ -165,7 +169,7 @@ static int gd5fxgq4uexxg_ecc_get_status(struct spinand_device *spinand, u8 status) { u8 status2; - struct spi_mem_op op = SPINAND_GET_FEATURE_OP(GD5FXGQ4UEXXG_REG_STATUS2, + struct spi_mem_op op = SPINAND_GET_FEATURE_OP(GD5FXGQXXEXXG_REG_STATUS2, &status2); int ret; @@ -203,6 +207,43 @@ static int gd5fxgq4uexxg_ecc_get_status(struct spinand_device *spinand, return -EINVAL; } +static int gd5fxgq5xexxg_ecc_get_status(struct spinand_device *spinand, + u8 status) +{ + u8 status2; + struct spi_mem_op op = SPINAND_GET_FEATURE_OP(GD5FXGQXXEXXG_REG_STATUS2, + &status2); + int ret; + + switch (status & STATUS_ECC_MASK) { + case STATUS_ECC_NO_BITFLIPS: + return 0; + + case GD5FXGQ5XE_STATUS_ECC_1_4_BITFLIPS: + /* + * Read status2 register to determine a more fine grained + * bit error status + */ + ret = spi_mem_exec_op(spinand->spimem, &op); + if (ret) + return ret; + + /* + * 1 ... 4 bits are flipped (and corrected) + */ + /* bits sorted this way (1...0): ECCSE1, ECCSE0 */ + return ((status2 & STATUS_ECC_MASK) >> 4) + 1; + + case STATUS_ECC_UNCOR_ERROR: + return -EBADMSG; + + default: + break; + } + + return -EINVAL; +} + static int gd5fxgq4ufxxg_ecc_get_status(struct spinand_device *spinand, u8 status) { @@ -282,7 +323,7 @@ static const struct spinand_info gigadevice_spinand_table[] = { &write_cache_variants, &update_cache_variants), SPINAND_HAS_QE_BIT, - SPINAND_ECCINFO(&gd5fxgq4_variant2_ooblayout, + SPINAND_ECCINFO(&gd5fxgqx_variant2_ooblayout, gd5fxgq4uexxg_ecc_get_status)), SPINAND_INFO("GD5F1GQ4UFxxG", SPINAND_ID(SPINAND_READID_METHOD_OPCODE, 0xb1, 0x48), @@ -292,8 +333,18 @@ static const struct spinand_info gigadevice_spinand_table[] = { &write_cache_variants, &update_cache_variants), SPINAND_HAS_QE_BIT, - SPINAND_ECCINFO(&gd5fxgq4_variant2_ooblayout, + SPINAND_ECCINFO(&gd5fxgqx_variant2_ooblayout, gd5fxgq4ufxxg_ecc_get_status)), + SPINAND_INFO("GD5F1GQ5UExxG", + SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x51), + NAND_MEMORG(1, 2048, 128, 64, 1024, 20, 1, 1, 1), + NAND_ECCREQ(4, 512), + SPINAND_INFO_OP_VARIANTS(&read_cache_variants, + &write_cache_variants, + &update_cache_variants), + SPINAND_HAS_QE_BIT, + SPINAND_ECCINFO(&gd5fxgqx_variant2_ooblayout, + gd5fxgq5xexxg_ecc_get_status)), }; static const struct spinand_manufacturer_ops gigadevice_spinand_manuf_ops = { |