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| // SPDX-License-Identifier: GPL-2.0
| /*
| * Copyright (c) 2023 Rockchip Electronics Co., Ltd
| *
| * Authors:
| * Dingqiang Lin <jon.lin@rock-chips.com>
| */
|
| #include <linux/device.h>
| #include <linux/kernel.h>
| #include <linux/mtd/spinand.h>
|
| #define SPINAND_MFR_GSTO 0x52
|
| 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 gss0xgsak1_ooblayout_ecc(struct mtd_info *mtd, int section,
| struct mtd_oob_region *region)
| {
| if (section)
| return -ERANGE;
|
| region->offset = 32;
| region->length = 32;
|
| return 0;
| }
|
| static int gss0xgsak1_ooblayout_free(struct mtd_info *mtd, int section,
| struct mtd_oob_region *region)
| {
| if (section)
| return -ERANGE;
|
| region->offset = 2;
| region->length = 30;
|
| return 0;
| }
|
| static const struct mtd_ooblayout_ops gss0xgsak1_ooblayout = {
| .ecc = gss0xgsak1_ooblayout_ecc,
| .free = gss0xgsak1_ooblayout_free,
| };
|
| static const struct spinand_info gsto_spinand_table[] = {
| SPINAND_INFO("GSS01GSAK1",
| SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0xBA, 0x13),
| NAND_MEMORG(1, 2048, 64, 64, 1024, 10, 1, 1, 1),
| NAND_ECCREQ(4, 512),
| SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
| &write_cache_variants,
| &update_cache_variants),
| 0,
| SPINAND_ECCINFO(&gss0xgsak1_ooblayout, NULL)),
| SPINAND_INFO("GSS02GSAK1",
| SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0xBA, 0x23),
| NAND_MEMORG(1, 2048, 64, 64, 2048, 20, 1, 1, 1),
| NAND_ECCREQ(4, 512),
| SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
| &write_cache_variants,
| &update_cache_variants),
| 0,
| SPINAND_ECCINFO(&gss0xgsak1_ooblayout, NULL)),
| };
|
| static const struct spinand_manufacturer_ops gsto_spinand_manuf_ops = {
| };
|
| const struct spinand_manufacturer gsto_spinand_manufacturer = {
| .id = SPINAND_MFR_GSTO,
| .name = "GSTO",
| .chips = gsto_spinand_table,
| .nchips = ARRAY_SIZE(gsto_spinand_table),
| .ops = &gsto_spinand_manuf_ops,
| };
|
|
