242 lines
7.3 KiB
C
242 lines
7.3 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (c) 2020 Rockchip Electronics Co., Ltd
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*
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* Authors:
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* Dingqiang Lin <jon.lin@rock-chips.com>
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*/
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#ifndef __UBOOT__
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#include <linux/device.h>
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#include <linux/kernel.h>
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#endif
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#include <linux/mtd/spinand.h>
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#define SPINAND_MFR_DOSILICON 0xE5
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#define DOSICON_STATUS_ECC_MASK GENMASK(6, 4)
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#define DOSICON_STATUS_ECC_NO_BITFLIPS (0 << 4)
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#define DOSICON_STATUS_ECC_1TO3_BITFLIPS (1 << 4)
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#define DOSICON_STATUS_ECC_4TO6_BITFLIPS (3 << 4)
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#define DOSICON_STATUS_ECC_7TO8_BITFLIPS (5 << 4)
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static SPINAND_OP_VARIANTS(read_cache_variants,
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SPINAND_PAGE_READ_FROM_CACHE_QUADIO_OP(0, 2, NULL, 0),
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SPINAND_PAGE_READ_FROM_CACHE_X4_OP(0, 1, NULL, 0),
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SPINAND_PAGE_READ_FROM_CACHE_DUALIO_OP(0, 1, NULL, 0),
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SPINAND_PAGE_READ_FROM_CACHE_X2_OP(0, 1, NULL, 0),
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SPINAND_PAGE_READ_FROM_CACHE_OP(true, 0, 1, NULL, 0),
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SPINAND_PAGE_READ_FROM_CACHE_OP(false, 0, 1, NULL, 0));
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static SPINAND_OP_VARIANTS(write_cache_variants,
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SPINAND_PROG_LOAD_X4(true, 0, NULL, 0),
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SPINAND_PROG_LOAD(true, 0, NULL, 0));
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static SPINAND_OP_VARIANTS(update_cache_variants,
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SPINAND_PROG_LOAD_X4(false, 0, NULL, 0),
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SPINAND_PROG_LOAD(false, 0, NULL, 0));
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static int ds35xxga_ooblayout_ecc(struct mtd_info *mtd, int section,
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struct mtd_oob_region *region)
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{
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if (section > 3)
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return -ERANGE;
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region->offset = (16 * section) + 8;
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region->length = 8;
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return 0;
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}
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static int ds35xxga_ooblayout_free(struct mtd_info *mtd, int section,
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struct mtd_oob_region *region)
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{
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if (section > 3)
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return -ERANGE;
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region->offset = (16 * section) + 2;
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region->length = 6;
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return 0;
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}
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static const struct mtd_ooblayout_ops ds35xxga_ooblayout = {
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.ecc = ds35xxga_ooblayout_ecc,
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.rfree = ds35xxga_ooblayout_free,
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};
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static int ds35xxgb_ooblayout_ecc(struct mtd_info *mtd, int section,
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struct mtd_oob_region *region)
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{
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if (section)
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return -ERANGE;
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region->offset = 64;
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region->length = 64;
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return 0;
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}
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static int ds35xxgb_ooblayout_free(struct mtd_info *mtd, int section,
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struct mtd_oob_region *region)
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{
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if (section)
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return -ERANGE;
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/* Reserve 1 bytes for the BBM. */
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region->offset = 1;
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region->length = 63;
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return 0;
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}
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static const struct mtd_ooblayout_ops ds35xxgb_ooblayout = {
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.ecc = ds35xxgb_ooblayout_ecc,
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.rfree = ds35xxgb_ooblayout_free,
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};
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static int ds35xxgb_ecc_get_status(struct spinand_device *spinand,
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u8 status)
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{
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switch (status & DOSICON_STATUS_ECC_MASK) {
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case STATUS_ECC_NO_BITFLIPS:
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return 0;
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case STATUS_ECC_UNCOR_ERROR:
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return -EBADMSG;
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case DOSICON_STATUS_ECC_1TO3_BITFLIPS:
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return 3;
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case DOSICON_STATUS_ECC_4TO6_BITFLIPS:
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return 6;
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case DOSICON_STATUS_ECC_7TO8_BITFLIPS:
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return 8;
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default:
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break;
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}
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return -EINVAL;
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}
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static const struct spinand_info dosilicon_spinand_table[] = {
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SPINAND_INFO("DS35X1GA",
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SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x71),
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NAND_MEMORG(1, 2048, 64, 64, 1024, 1, 1, 1),
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NAND_ECCREQ(4, 512),
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SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
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&write_cache_variants,
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&update_cache_variants),
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SPINAND_HAS_QE_BIT,
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SPINAND_ECCINFO(&ds35xxga_ooblayout, NULL)),
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SPINAND_INFO("DS35Q2GA",
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SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x72),
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NAND_MEMORG(1, 2048, 64, 64, 2048, 2, 1, 1),
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NAND_ECCREQ(4, 512),
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SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
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&write_cache_variants,
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&update_cache_variants),
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SPINAND_HAS_QE_BIT,
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SPINAND_ECCINFO(&ds35xxga_ooblayout, NULL)),
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SPINAND_INFO("DS35M1GA",
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SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x21),
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NAND_MEMORG(1, 2048, 64, 64, 1024, 1, 1, 1),
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NAND_ECCREQ(4, 512),
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SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
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&write_cache_variants,
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&update_cache_variants),
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SPINAND_HAS_QE_BIT,
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SPINAND_ECCINFO(&ds35xxga_ooblayout, NULL)),
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SPINAND_INFO("DS35M2GA",
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SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x22),
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NAND_MEMORG(1, 2048, 64, 64, 2048, 2, 1, 1),
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NAND_ECCREQ(4, 512),
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SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
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&write_cache_variants,
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&update_cache_variants),
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SPINAND_HAS_QE_BIT,
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SPINAND_ECCINFO(&ds35xxga_ooblayout, NULL)),
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SPINAND_INFO("DS35Q2GB",
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SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0xF2),
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NAND_MEMORG(1, 2048, 128, 64, 2048, 2, 1, 1),
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NAND_ECCREQ(8, 512),
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SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
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&write_cache_variants,
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&update_cache_variants),
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SPINAND_HAS_QE_BIT,
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SPINAND_ECCINFO(&ds35xxgb_ooblayout,
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ds35xxgb_ecc_get_status)),
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SPINAND_INFO("DS35M1GB",
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SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0xA1),
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NAND_MEMORG(1, 2048, 128, 64, 1024, 1, 1, 1),
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NAND_ECCREQ(8, 512),
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SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
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&write_cache_variants,
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&update_cache_variants),
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SPINAND_HAS_QE_BIT,
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SPINAND_ECCINFO(&ds35xxgb_ooblayout,
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ds35xxgb_ecc_get_status)),
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SPINAND_INFO("DS35Q1GB",
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SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0xF1),
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NAND_MEMORG(1, 2048, 128, 64, 1024, 1, 1, 1),
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NAND_ECCREQ(8, 512),
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SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
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&write_cache_variants,
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&update_cache_variants),
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SPINAND_HAS_QE_BIT,
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SPINAND_ECCINFO(&ds35xxgb_ooblayout,
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ds35xxgb_ecc_get_status)),
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SPINAND_INFO("DS35Q4GM",
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SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0xF4),
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NAND_MEMORG(1, 2048, 128, 64, 4096, 2, 1, 1),
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NAND_ECCREQ(8, 512),
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SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
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&write_cache_variants,
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&update_cache_variants),
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SPINAND_HAS_QE_BIT,
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SPINAND_ECCINFO(&ds35xxgb_ooblayout,
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ds35xxgb_ecc_get_status)),
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SPINAND_INFO("DS35Q12B",
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SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0xF5),
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NAND_MEMORG(1, 2048, 128, 64, 512, 1, 1, 1),
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NAND_ECCREQ(8, 512),
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SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
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&write_cache_variants,
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&update_cache_variants),
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SPINAND_HAS_QE_BIT,
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SPINAND_ECCINFO(&ds35xxgb_ooblayout,
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ds35xxgb_ecc_get_status)),
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SPINAND_INFO("DS35M12B",
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SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0xA5),
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NAND_MEMORG(1, 2048, 128, 64, 512, 1, 1, 1),
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NAND_ECCREQ(8, 512),
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SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
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&write_cache_variants,
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&update_cache_variants),
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SPINAND_HAS_QE_BIT,
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SPINAND_ECCINFO(&ds35xxgb_ooblayout,
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ds35xxgb_ecc_get_status)),
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SPINAND_INFO("DS35Q1GD-IB",
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SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x51),
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NAND_MEMORG(1, 2048, 128, 64, 1024, 1, 1, 1),
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NAND_ECCREQ(8, 512),
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SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
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&write_cache_variants,
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&update_cache_variants),
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SPINAND_HAS_QE_BIT,
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SPINAND_ECCINFO(&ds35xxgb_ooblayout, ds35xxgb_ecc_get_status)),
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};
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static const struct spinand_manufacturer_ops dosilicon_spinand_manuf_ops = {
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};
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const struct spinand_manufacturer dosilicon_spinand_manufacturer = {
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.id = SPINAND_MFR_DOSILICON,
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.name = "dosilicon",
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.chips = dosilicon_spinand_table,
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.nchips = ARRAY_SIZE(dosilicon_spinand_table),
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.ops = &dosilicon_spinand_manuf_ops,
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};
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