android13/kernel-5.10/drivers/mtd/nand/spi/gsto.c

91 lines
2.5 KiB
C

// 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,
};