// SPDX-License-Identifier: GPL-2.0 /* * Author: * Chuanhong Guo */ #include #include #include #define SPINAND_MFR_GIGADEVICE 0xC8 #define GD5FXGQ4XA_STATUS_ECC_1_7_BITFLIPS (1 << 4) #define GD5FXGQ4XA_STATUS_ECC_8_BITFLIPS (3 << 4) #define GD5FXGQ4UEXXG_REG_STATUS2 0xf0 #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, 2, NULL, 0), SPINAND_PAGE_READ_FROM_CACHE_X4_OP(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)); static SPINAND_OP_VARIANTS(read_cache_variants_f, SPINAND_PAGE_READ_FROM_CACHE_QUADIO_OP(0, 2, 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_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), SPINAND_PROG_LOAD(true, 0, NULL, 0)); static SPINAND_OP_VARIANTS(update_cache_variants, SPINAND_PROG_LOAD_X4(false, 0, NULL, 0), SPINAND_PROG_LOAD(false, 0, NULL, 0)); 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, .free = 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 gd5fxgq4_variant2_ooblayout_ecc(struct mtd_info *mtd, int section, struct mtd_oob_region *region) { if (section) return -ERANGE; region->offset = 64; region->length = 64; return 0; } static int gd5fxgq4_variant2_ooblayout_free(struct mtd_info *mtd, int section, struct mtd_oob_region *region) { if (section) return -ERANGE; /* Reserve 1 bytes for the BBM. */ region->offset = 1; region->length = 63; return 0; } static const struct mtd_ooblayout_ops gd5fxgq4_variant2_ooblayout = { .ecc = gd5fxgq4_variant2_ooblayout_ecc, .free = gd5fxgq4_variant2_ooblayout_free, }; 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, &status2); int ret; switch (status & STATUS_ECC_MASK) { case STATUS_ECC_NO_BITFLIPS: return 0; case GD5FXGQ4XA_STATUS_ECC_1_7_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; /* * 4 ... 7 bits are flipped (1..4 can't be detected, so * report the maximum of 4 in this case */ /* bits sorted this way (3...0): ECCS1,ECCS0,ECCSE1,ECCSE0 */ return ((status & STATUS_ECC_MASK) >> 2) | ((status2 & STATUS_ECC_MASK) >> 4); case GD5FXGQ4XA_STATUS_ECC_8_BITFLIPS: return 8; case STATUS_ECC_UNCOR_ERROR: return -EBADMSG; default: break; } return -EINVAL; } 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("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), 0, 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(&read_cache_variants, &write_cache_variants, &update_cache_variants), 0, 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), 0, SPINAND_ECCINFO(&gd5fxgq4xa_ooblayout, gd5fxgq4xa_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), 0, SPINAND_ECCINFO(&gd5fxgq4_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), 0, SPINAND_ECCINFO(&gd5fxgq4_variant2_ooblayout, gd5fxgq4ufxxg_ecc_get_status)), }; static const struct spinand_manufacturer_ops gigadevice_spinand_manuf_ops = { }; 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, };