diff options
Diffstat (limited to 'drivers/mtd/nand/spi/gigadevice.c')
| -rw-r--r-- | drivers/mtd/nand/spi/gigadevice.c | 253 |
1 files changed, 203 insertions, 50 deletions
diff --git a/drivers/mtd/nand/spi/gigadevice.c b/drivers/mtd/nand/spi/gigadevice.c index a2c93486f4..f2ecf47f8d 100644 --- a/drivers/mtd/nand/spi/gigadevice.c +++ b/drivers/mtd/nand/spi/gigadevice.c @@ -7,13 +7,13 @@ */ #ifndef __UBOOT__ -#include <malloc.h> #include <linux/device.h> #include <linux/kernel.h> #endif #include <linux/mtd/spinand.h> #define SPINAND_MFR_GIGADEVICE 0xC8 + #define GD5FXGQ4XA_STATUS_ECC_1_7_BITFLIPS (1 << 4) #define GD5FXGQ4XA_STATUS_ECC_8_BITFLIPS (3 << 4) @@ -22,8 +22,12 @@ #define GD5FXGQXXEXXG_REG_STATUS2 0xf0 -/* Q4 devices, QUADIO: Dummy bytes valid for 1 and 2 GBit variants */ -static SPINAND_OP_VARIANTS(gd5fxgq4_read_cache_variants, +#define GD5FXGQ4UXFXXG_STATUS_ECC_MASK (7 << 4) +#define GD5FXGQ4UXFXXG_STATUS_ECC_NO_BITFLIPS (0 << 4) +#define GD5FXGQ4UXFXXG_STATUS_ECC_1_3_BITFLIPS (1 << 4) +#define GD5FXGQ4UXFXXG_STATUS_ECC_UNCOR_ERROR (7 << 4) + +static SPINAND_OP_VARIANTS(read_cache_variants, SPINAND_PAGE_READ_FROM_CACHE_QUADIO_OP(0, 1, NULL, 0), SPINAND_PAGE_READ_FROM_CACHE_X4_OP(0, 1, NULL, 0), SPINAND_PAGE_READ_FROM_CACHE_DUALIO_OP(0, 1, NULL, 0), @@ -31,14 +35,13 @@ static SPINAND_OP_VARIANTS(gd5fxgq4_read_cache_variants, SPINAND_PAGE_READ_FROM_CACHE_OP(true, 0, 1, NULL, 0), SPINAND_PAGE_READ_FROM_CACHE_OP(false, 0, 1, NULL, 0)); -/* Q5 devices, QUADIO: Dummy bytes only valid for 1 GBit variants */ -static SPINAND_OP_VARIANTS(gd5f1gq5_read_cache_variants, - SPINAND_PAGE_READ_FROM_CACHE_QUADIO_OP(0, 2, NULL, 0), - SPINAND_PAGE_READ_FROM_CACHE_X4_OP(0, 1, NULL, 0), +static SPINAND_OP_VARIANTS(read_cache_variants_f, + SPINAND_PAGE_READ_FROM_CACHE_QUADIO_OP(0, 1, NULL, 0), + SPINAND_PAGE_READ_FROM_CACHE_X4_OP_3A(0, 1, NULL, 0), SPINAND_PAGE_READ_FROM_CACHE_DUALIO_OP(0, 1, NULL, 0), - SPINAND_PAGE_READ_FROM_CACHE_X2_OP(0, 1, NULL, 0), - SPINAND_PAGE_READ_FROM_CACHE_OP(true, 0, 1, NULL, 0), - SPINAND_PAGE_READ_FROM_CACHE_OP(false, 0, 1, NULL, 0)); + SPINAND_PAGE_READ_FROM_CACHE_X2_OP_3A(0, 1, NULL, 0), + SPINAND_PAGE_READ_FROM_CACHE_OP_3A(true, 0, 1, NULL, 0), + SPINAND_PAGE_READ_FROM_CACHE_OP_3A(false, 0, 0, NULL, 0)); static SPINAND_OP_VARIANTS(write_cache_variants, SPINAND_PROG_LOAD_X4(true, 0, NULL, 0), @@ -48,7 +51,65 @@ static SPINAND_OP_VARIANTS(update_cache_variants, SPINAND_PROG_LOAD_X4(false, 0, NULL, 0), SPINAND_PROG_LOAD(false, 0, NULL, 0)); -static int gd5fxgqxxexxg_ooblayout_ecc(struct mtd_info *mtd, int section, +static int gd5fxgq4xa_ooblayout_ecc(struct mtd_info *mtd, int section, + struct mtd_oob_region *region) +{ + if (section > 3) + return -ERANGE; + + region->offset = (16 * section) + 8; + region->length = 8; + + return 0; +} + +static int gd5fxgq4xa_ooblayout_free(struct mtd_info *mtd, int section, + struct mtd_oob_region *region) +{ + if (section > 3) + return -ERANGE; + + if (section) { + region->offset = 16 * section; + region->length = 8; + } else { + /* section 0 has one byte reserved for bad block mark */ + region->offset = 1; + region->length = 7; + } + return 0; +} + +static const struct mtd_ooblayout_ops gd5fxgq4xa_ooblayout = { + .ecc = gd5fxgq4xa_ooblayout_ecc, + .rfree = gd5fxgq4xa_ooblayout_free, +}; + +static int gd5fxgq4xa_ecc_get_status(struct spinand_device *spinand, + u8 status) +{ + switch (status & STATUS_ECC_MASK) { + case STATUS_ECC_NO_BITFLIPS: + return 0; + + case GD5FXGQ4XA_STATUS_ECC_1_7_BITFLIPS: + /* 1-7 bits are flipped. return the maximum. */ + return 7; + + case GD5FXGQ4XA_STATUS_ECC_8_BITFLIPS: + return 8; + + case STATUS_ECC_UNCOR_ERROR: + return -EBADMSG; + + default: + break; + } + + return -EINVAL; +} + +static int gd5fxgqx_variant2_ooblayout_ecc(struct mtd_info *mtd, int section, struct mtd_oob_region *region) { if (section) @@ -60,7 +121,7 @@ static int gd5fxgqxxexxg_ooblayout_ecc(struct mtd_info *mtd, int section, return 0; } -static int gd5fxgqxxexxg_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) @@ -73,7 +134,42 @@ static int gd5fxgqxxexxg_ooblayout_free(struct mtd_info *mtd, int section, return 0; } -static int gd5fxgq4xexxg_ecc_get_status(struct spinand_device *spinand, +/* Valid for Q4/Q5 and Q6 (untested) devices */ +static const struct mtd_ooblayout_ops gd5fxgqx_variant2_ooblayout = { + .ecc = gd5fxgqx_variant2_ooblayout_ecc, + .rfree = gd5fxgqx_variant2_ooblayout_free, +}; + +static int gd5fxgq4xc_ooblayout_256_ecc(struct mtd_info *mtd, int section, + struct mtd_oob_region *oobregion) +{ + if (section) + return -ERANGE; + + oobregion->offset = 128; + oobregion->length = 128; + + return 0; +} + +static int gd5fxgq4xc_ooblayout_256_free(struct mtd_info *mtd, int section, + struct mtd_oob_region *oobregion) +{ + if (section) + return -ERANGE; + + oobregion->offset = 1; + oobregion->length = 127; + + return 0; +} + +static const struct mtd_ooblayout_ops gd5fxgq4xc_oob_256_ops = { + .ecc = gd5fxgq4xc_ooblayout_256_ecc, + .rfree = gd5fxgq4xc_ooblayout_256_free, +}; + +static int gd5fxgq4uexxg_ecc_get_status(struct spinand_device *spinand, u8 status) { u8 status2; @@ -152,59 +248,116 @@ static int gd5fxgq5xexxg_ecc_get_status(struct spinand_device *spinand, return -EINVAL; } -static const struct mtd_ooblayout_ops gd5fxgqxxexxg_ooblayout = { - .ecc = gd5fxgqxxexxg_ooblayout_ecc, - .rfree = gd5fxgqxxexxg_ooblayout_free, -}; +static int gd5fxgq4ufxxg_ecc_get_status(struct spinand_device *spinand, + u8 status) +{ + switch (status & GD5FXGQ4UXFXXG_STATUS_ECC_MASK) { + case GD5FXGQ4UXFXXG_STATUS_ECC_NO_BITFLIPS: + return 0; + + case GD5FXGQ4UXFXXG_STATUS_ECC_1_3_BITFLIPS: + return 3; + + case GD5FXGQ4UXFXXG_STATUS_ECC_UNCOR_ERROR: + return -EBADMSG; + + default: /* (2 << 4) through (6 << 4) are 4-8 corrected errors */ + return ((status & GD5FXGQ4UXFXXG_STATUS_ECC_MASK) >> 4) + 2; + } + + return -EINVAL; +} static const struct spinand_info gigadevice_spinand_table[] = { - SPINAND_INFO("GD5F1GQ4UExxG", 0xd1, - NAND_MEMORG(1, 2048, 128, 64, 1024, 1, 1, 1), + SPINAND_INFO("GD5F1GQ4xA", + SPINAND_ID(SPINAND_READID_METHOD_OPCODE_ADDR, 0xf1), + NAND_MEMORG(1, 2048, 64, 64, 1024, 20, 1, 1, 1), + NAND_ECCREQ(8, 512), + SPINAND_INFO_OP_VARIANTS(&read_cache_variants, + &write_cache_variants, + &update_cache_variants), + SPINAND_HAS_QE_BIT, + SPINAND_ECCINFO(&gd5fxgq4xa_ooblayout, + gd5fxgq4xa_ecc_get_status)), + SPINAND_INFO("GD5F2GQ4xA", + SPINAND_ID(SPINAND_READID_METHOD_OPCODE_ADDR, 0xf2), + NAND_MEMORG(1, 2048, 64, 64, 2048, 40, 1, 1, 1), NAND_ECCREQ(8, 512), - SPINAND_INFO_OP_VARIANTS(&gd5fxgq4_read_cache_variants, + SPINAND_INFO_OP_VARIANTS(&read_cache_variants, &write_cache_variants, &update_cache_variants), - 0, - SPINAND_ECCINFO(&gd5fxgqxxexxg_ooblayout, - gd5fxgq4xexxg_ecc_get_status)), - SPINAND_INFO("GD5F1GQ5UExxG", 0x51, - NAND_MEMORG(1, 2048, 128, 64, 1024, 1, 1, 1), + SPINAND_HAS_QE_BIT, + SPINAND_ECCINFO(&gd5fxgq4xa_ooblayout, + gd5fxgq4xa_ecc_get_status)), + SPINAND_INFO("GD5F4GQ4xA", + SPINAND_ID(SPINAND_READID_METHOD_OPCODE_ADDR, 0xf4), + NAND_MEMORG(1, 2048, 64, 64, 4096, 80, 1, 1, 1), + NAND_ECCREQ(8, 512), + SPINAND_INFO_OP_VARIANTS(&read_cache_variants, + &write_cache_variants, + &update_cache_variants), + SPINAND_HAS_QE_BIT, + SPINAND_ECCINFO(&gd5fxgq4xa_ooblayout, + gd5fxgq4xa_ecc_get_status)), + SPINAND_INFO("GD5F4GQ4RC", + SPINAND_ID(SPINAND_READID_METHOD_OPCODE, 0xa4, 0x68), + NAND_MEMORG(1, 4096, 256, 64, 2048, 40, 1, 1, 1), + NAND_ECCREQ(8, 512), + SPINAND_INFO_OP_VARIANTS(&read_cache_variants_f, + &write_cache_variants, + &update_cache_variants), + SPINAND_HAS_QE_BIT, + SPINAND_ECCINFO(&gd5fxgq4xc_oob_256_ops, + gd5fxgq4ufxxg_ecc_get_status)), + SPINAND_INFO("GD5F4GQ4UC", + SPINAND_ID(SPINAND_READID_METHOD_OPCODE, 0xb4, 0x68), + NAND_MEMORG(1, 4096, 256, 64, 2048, 40, 1, 1, 1), + NAND_ECCREQ(8, 512), + SPINAND_INFO_OP_VARIANTS(&read_cache_variants_f, + &write_cache_variants, + &update_cache_variants), + SPINAND_HAS_QE_BIT, + SPINAND_ECCINFO(&gd5fxgq4xc_oob_256_ops, + gd5fxgq4ufxxg_ecc_get_status)), + SPINAND_INFO("GD5F1GQ4UExxG", + SPINAND_ID(SPINAND_READID_METHOD_OPCODE_ADDR, 0xd1), + NAND_MEMORG(1, 2048, 128, 64, 1024, 20, 1, 1, 1), + NAND_ECCREQ(8, 512), + SPINAND_INFO_OP_VARIANTS(&read_cache_variants, + &write_cache_variants, + &update_cache_variants), + SPINAND_HAS_QE_BIT, + SPINAND_ECCINFO(&gd5fxgqx_variant2_ooblayout, + gd5fxgq4uexxg_ecc_get_status)), + SPINAND_INFO("GD5F1GQ4UFxxG", + SPINAND_ID(SPINAND_READID_METHOD_OPCODE, 0xb1, 0x48), + NAND_MEMORG(1, 2048, 128, 64, 1024, 20, 1, 1, 1), + NAND_ECCREQ(8, 512), + SPINAND_INFO_OP_VARIANTS(&read_cache_variants_f, + &write_cache_variants, + &update_cache_variants), + SPINAND_HAS_QE_BIT, + 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(&gd5f1gq5_read_cache_variants, + SPINAND_INFO_OP_VARIANTS(&read_cache_variants, &write_cache_variants, &update_cache_variants), - 0, - SPINAND_ECCINFO(&gd5fxgqxxexxg_ooblayout, + SPINAND_HAS_QE_BIT, + SPINAND_ECCINFO(&gd5fxgqx_variant2_ooblayout, gd5fxgq5xexxg_ecc_get_status)), }; -static int gigadevice_spinand_detect(struct spinand_device *spinand) -{ - u8 *id = spinand->id.data; - int ret; - - /* - * For GD NANDs, There is an address byte needed to shift in before IDs - * are read out, so the first byte in raw_id is dummy. - */ - if (id[1] != SPINAND_MFR_GIGADEVICE) - return 0; - - ret = spinand_match_and_init(spinand, gigadevice_spinand_table, - ARRAY_SIZE(gigadevice_spinand_table), - id[2]); - if (ret) - return ret; - - return 1; -} - static const struct spinand_manufacturer_ops gigadevice_spinand_manuf_ops = { - .detect = gigadevice_spinand_detect, }; const struct spinand_manufacturer gigadevice_spinand_manufacturer = { .id = SPINAND_MFR_GIGADEVICE, .name = "GigaDevice", + .chips = gigadevice_spinand_table, + .nchips = ARRAY_SIZE(gigadevice_spinand_table), .ops = &gigadevice_spinand_manuf_ops, }; |