| // SPDX-License-Identifier: GPL-2.0 |
| /* |
| * Copyright (c) 2018 Macronix |
| * |
| * Author: Boris Brezillon <boris.brezillon@bootlin.com> |
| */ |
| |
| #include <linux/device.h> |
| #include <linux/kernel.h> |
| #include <linux/mtd/spinand.h> |
| |
| #define SPINAND_MFR_MACRONIX 0xC2 |
| #define MACRONIX_ECCSR_MASK 0x0F |
| |
| static SPINAND_OP_VARIANTS(read_cache_variants, |
| SPINAND_PAGE_READ_FROM_CACHE_X4_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(write_cache_variants, |
| SPINAND_PROG_LOAD_X4(true, 0, NULL, 0), |
| SPINAND_PROG_LOAD(false, 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 mx35lfxge4ab_ooblayout_ecc(struct mtd_info *mtd, int section, |
| struct mtd_oob_region *region) |
| { |
| return -ERANGE; |
| } |
| |
| static int mx35lfxge4ab_ooblayout_free(struct mtd_info *mtd, int section, |
| struct mtd_oob_region *region) |
| { |
| if (section) |
| return -ERANGE; |
| |
| region->offset = 2; |
| region->length = mtd->oobsize - 2; |
| |
| return 0; |
| } |
| |
| static const struct mtd_ooblayout_ops mx35lfxge4ab_ooblayout = { |
| .ecc = mx35lfxge4ab_ooblayout_ecc, |
| .free = mx35lfxge4ab_ooblayout_free, |
| }; |
| |
| static int mx35lf1ge4ab_get_eccsr(struct spinand_device *spinand, u8 *eccsr) |
| { |
| struct spi_mem_op op = SPI_MEM_OP(SPI_MEM_OP_CMD(0x7c, 1), |
| SPI_MEM_OP_NO_ADDR, |
| SPI_MEM_OP_DUMMY(1, 1), |
| SPI_MEM_OP_DATA_IN(1, eccsr, 1)); |
| |
| int ret = spi_mem_exec_op(spinand->spimem, &op); |
| if (ret) |
| return ret; |
| |
| *eccsr &= MACRONIX_ECCSR_MASK; |
| return 0; |
| } |
| |
| static int mx35lf1ge4ab_ecc_get_status(struct spinand_device *spinand, |
| u8 status) |
| { |
| struct nand_device *nand = spinand_to_nand(spinand); |
| u8 eccsr; |
| |
| switch (status & STATUS_ECC_MASK) { |
| case STATUS_ECC_NO_BITFLIPS: |
| return 0; |
| |
| case STATUS_ECC_UNCOR_ERROR: |
| return -EBADMSG; |
| |
| case STATUS_ECC_HAS_BITFLIPS: |
| /* |
| * Let's try to retrieve the real maximum number of bitflips |
| * in order to avoid forcing the wear-leveling layer to move |
| * data around if it's not necessary. |
| */ |
| if (mx35lf1ge4ab_get_eccsr(spinand, spinand->scratchbuf)) |
| return nanddev_get_ecc_conf(nand)->strength; |
| |
| eccsr = *spinand->scratchbuf; |
| if (WARN_ON(eccsr > nanddev_get_ecc_conf(nand)->strength || |
| !eccsr)) |
| return nanddev_get_ecc_conf(nand)->strength; |
| |
| return eccsr; |
| |
| default: |
| break; |
| } |
| |
| return -EINVAL; |
| } |
| |
| static const struct spinand_info macronix_spinand_table[] = { |
| SPINAND_INFO("MX35LF1GE4AB", |
| SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x12), |
| NAND_MEMORG(1, 2048, 64, 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(&mx35lfxge4ab_ooblayout, |
| mx35lf1ge4ab_ecc_get_status)), |
| SPINAND_INFO("MX35LF2GE4AB", |
| SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x22), |
| NAND_MEMORG(1, 2048, 64, 64, 2048, 40, 2, 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(&mx35lfxge4ab_ooblayout, NULL)), |
| SPINAND_INFO("MX35LF2GE4AD", |
| SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x26), |
| 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), |
| SPINAND_HAS_QE_BIT, |
| SPINAND_ECCINFO(&mx35lfxge4ab_ooblayout, |
| mx35lf1ge4ab_ecc_get_status)), |
| SPINAND_INFO("MX35LF4GE4AD", |
| SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x37), |
| NAND_MEMORG(1, 4096, 128, 64, 2048, 40, 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(&mx35lfxge4ab_ooblayout, |
| mx35lf1ge4ab_ecc_get_status)), |
| SPINAND_INFO("MX35LF1G24AD", |
| SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x14), |
| 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(&mx35lfxge4ab_ooblayout, NULL)), |
| SPINAND_INFO("MX35LF2G24AD", |
| SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x24), |
| NAND_MEMORG(1, 2048, 128, 64, 2048, 40, 2, 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(&mx35lfxge4ab_ooblayout, NULL)), |
| SPINAND_INFO("MX35LF4G24AD", |
| SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x35), |
| NAND_MEMORG(1, 4096, 256, 64, 2048, 40, 2, 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(&mx35lfxge4ab_ooblayout, NULL)), |
| SPINAND_INFO("MX31LF1GE4BC", |
| SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x1e), |
| 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(&mx35lfxge4ab_ooblayout, |
| mx35lf1ge4ab_ecc_get_status)), |
| SPINAND_INFO("MX31UF1GE4BC", |
| SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x9e), |
| 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(&mx35lfxge4ab_ooblayout, |
| mx35lf1ge4ab_ecc_get_status)), |
| |
| SPINAND_INFO("MX35LF2G14AC", |
| SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x20), |
| NAND_MEMORG(1, 2048, 64, 64, 2048, 40, 2, 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(&mx35lfxge4ab_ooblayout, |
| mx35lf1ge4ab_ecc_get_status)), |
| SPINAND_INFO("MX35UF4G24AD", |
| SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0xb5), |
| NAND_MEMORG(1, 4096, 256, 64, 2048, 40, 2, 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(&mx35lfxge4ab_ooblayout, |
| mx35lf1ge4ab_ecc_get_status)), |
| SPINAND_INFO("MX35UF4GE4AD", |
| SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0xb7), |
| NAND_MEMORG(1, 4096, 256, 64, 2048, 40, 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(&mx35lfxge4ab_ooblayout, |
| mx35lf1ge4ab_ecc_get_status)), |
| SPINAND_INFO("MX35UF2G14AC", |
| SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0xa0), |
| NAND_MEMORG(1, 2048, 64, 64, 2048, 40, 2, 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(&mx35lfxge4ab_ooblayout, |
| mx35lf1ge4ab_ecc_get_status)), |
| SPINAND_INFO("MX35UF2G24AD", |
| SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0xa4), |
| NAND_MEMORG(1, 2048, 128, 64, 2048, 40, 2, 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(&mx35lfxge4ab_ooblayout, |
| mx35lf1ge4ab_ecc_get_status)), |
| SPINAND_INFO("MX35UF2GE4AD", |
| SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0xa6), |
| NAND_MEMORG(1, 2048, 128, 64, 2048, 40, 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(&mx35lfxge4ab_ooblayout, |
| mx35lf1ge4ab_ecc_get_status)), |
| SPINAND_INFO("MX35UF2GE4AC", |
| SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0xa2), |
| NAND_MEMORG(1, 2048, 64, 64, 2048, 40, 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(&mx35lfxge4ab_ooblayout, |
| mx35lf1ge4ab_ecc_get_status)), |
| SPINAND_INFO("MX35UF1G14AC", |
| SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x90), |
| NAND_MEMORG(1, 2048, 64, 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(&mx35lfxge4ab_ooblayout, |
| mx35lf1ge4ab_ecc_get_status)), |
| SPINAND_INFO("MX35UF1G24AD", |
| SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x94), |
| 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(&mx35lfxge4ab_ooblayout, |
| mx35lf1ge4ab_ecc_get_status)), |
| SPINAND_INFO("MX35UF1GE4AD", |
| SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x96), |
| 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(&mx35lfxge4ab_ooblayout, |
| mx35lf1ge4ab_ecc_get_status)), |
| SPINAND_INFO("MX35UF1GE4AC", |
| SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x92), |
| NAND_MEMORG(1, 2048, 64, 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(&mx35lfxge4ab_ooblayout, |
| mx35lf1ge4ab_ecc_get_status)), |
| |
| }; |
| |
| static const struct spinand_manufacturer_ops macronix_spinand_manuf_ops = { |
| }; |
| |
| const struct spinand_manufacturer macronix_spinand_manufacturer = { |
| .id = SPINAND_MFR_MACRONIX, |
| .name = "Macronix", |
| .chips = macronix_spinand_table, |
| .nchips = ARRAY_SIZE(macronix_spinand_table), |
| .ops = ¯onix_spinand_manuf_ops, |
| }; |