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| // SPDX-License-Identifier: GPL-2.0
| /*
| * Copyright (c) 2020 Rockchip Electronics Co., Ltd
| */
|
| #include <linux/device.h>
| #include <linux/kernel.h>
| #include <linux/mtd/spinand.h>
|
| #define SPINAND_MFR_DOSILICON 0xE5
|
| #define DOSICON_STATUS_ECC_MASK GENMASK(6, 4)
| #define DOSICON_STATUS_ECC_NO_BITFLIPS (0 << 4)
| #define DOSICON_STATUS_ECC_1TO3_BITFLIPS (1 << 4)
| #define DOSICON_STATUS_ECC_4TO6_BITFLIPS (3 << 4)
| #define DOSICON_STATUS_ECC_7TO8_BITFLIPS (5 << 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(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 ds35xxga_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 ds35xxga_ooblayout_free(struct mtd_info *mtd, int section,
| struct mtd_oob_region *region)
| {
| if (section > 3)
| return -ERANGE;
|
| region->offset = (16 * section) + 2;
| region->length = 6;
|
| return 0;
| }
|
| static const struct mtd_ooblayout_ops ds35xxga_ooblayout = {
| .ecc = ds35xxga_ooblayout_ecc,
| .free = ds35xxga_ooblayout_free,
| };
|
| static int ds35xxgb_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 ds35xxgb_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 ds35xxgb_ooblayout = {
| .ecc = ds35xxgb_ooblayout_ecc,
| .free = ds35xxgb_ooblayout_free,
| };
|
| static int ds35xxgb_ecc_get_status(struct spinand_device *spinand,
| u8 status)
| {
| switch (status & DOSICON_STATUS_ECC_MASK) {
| case STATUS_ECC_NO_BITFLIPS:
| return 0;
|
| case STATUS_ECC_UNCOR_ERROR:
| return -EBADMSG;
|
| case DOSICON_STATUS_ECC_1TO3_BITFLIPS:
| return 3;
|
| case DOSICON_STATUS_ECC_4TO6_BITFLIPS:
| return 6;
|
| case DOSICON_STATUS_ECC_7TO8_BITFLIPS:
| return 8;
|
| default:
| break;
| }
|
| return -EINVAL;
| }
|
| static const struct spinand_info dosilicon_spinand_table[] = {
| SPINAND_INFO("DS35X1GA",
| SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x71),
| 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(&ds35xxga_ooblayout, NULL)),
| SPINAND_INFO("DS35Q2GA",
| SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x72),
| 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(&ds35xxga_ooblayout, NULL)),
| SPINAND_INFO("DS35M1GA",
| SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x21),
| 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(&ds35xxga_ooblayout, NULL)),
| SPINAND_INFO("DS35M2GA",
| 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(&ds35xxga_ooblayout, NULL)),
| SPINAND_INFO("DS35Q2GB",
| SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0xF2),
| 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(&ds35xxgb_ooblayout,
| ds35xxgb_ecc_get_status)),
| SPINAND_INFO("DS35M1GB",
| SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0xA1),
| 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(&ds35xxgb_ooblayout,
| ds35xxgb_ecc_get_status)),
| SPINAND_INFO("DS35Q1GB",
| SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0xF1),
| 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(&ds35xxgb_ooblayout,
| ds35xxgb_ecc_get_status)),
| SPINAND_INFO("DS35Q4GM",
| SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0xF4),
| NAND_MEMORG(1, 2048, 128, 64, 4096, 80, 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(&ds35xxgb_ooblayout,
| ds35xxgb_ecc_get_status)),
| SPINAND_INFO("DS35Q12B",
| SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0xF5),
| NAND_MEMORG(1, 2048, 128, 64, 512, 10, 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(&ds35xxgb_ooblayout,
| ds35xxgb_ecc_get_status)),
| SPINAND_INFO("DS35M12B",
| SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0xA5),
| NAND_MEMORG(1, 2048, 128, 64, 512, 10, 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(&ds35xxgb_ooblayout,
| ds35xxgb_ecc_get_status)),
| SPINAND_INFO("DS35Q1GD-IB",
| SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x51),
| 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(&ds35xxgb_ooblayout, ds35xxgb_ecc_get_status)),
| };
|
| static const struct spinand_manufacturer_ops dosilicon_spinand_manuf_ops = {
| };
|
| const struct spinand_manufacturer dosilicon_spinand_manufacturer = {
| .id = SPINAND_MFR_DOSILICON,
| .name = "dosilicon",
| .chips = dosilicon_spinand_table,
| .nchips = ARRAY_SIZE(dosilicon_spinand_table),
| .ops = &dosilicon_spinand_manuf_ops,
| };
|
|
