121 lines
3.1 KiB
C
121 lines
3.1 KiB
C
// SPDX-License-Identifier: GPL-2.0
|
|
/*
|
|
* Copyright (c) 2020 Rockchip Electronics Co., Ltd
|
|
*
|
|
* Authors:
|
|
* Dingqiang Lin <jon.lin@rock-chips.com>
|
|
*/
|
|
|
|
#ifndef __UBOOT__
|
|
#include <linux/device.h>
|
|
#include <linux/kernel.h>
|
|
#endif
|
|
#include <linux/mtd/spinand.h>
|
|
|
|
#define SPINAND_MFR_DOSILICON 0xE5
|
|
|
|
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,
|
|
.rfree = ds35xxga_ooblayout_free,
|
|
};
|
|
|
|
static const struct spinand_info dosilicon_spinand_table[] = {
|
|
SPINAND_INFO("DS35X1GA", 0x71,
|
|
NAND_MEMORG(1, 2048, 64, 64, 1024, 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("DS35X2GA", 0x72,
|
|
NAND_MEMORG(1, 2048, 64, 64, 2048, 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)),
|
|
};
|
|
|
|
/**
|
|
* dosilicon_spinand_detect - initialize device related part in spinand_device
|
|
* struct if it is a dosilicon device.
|
|
* @spinand: SPI NAND device structure
|
|
*/
|
|
static int dosilicon_spinand_detect(struct spinand_device *spinand)
|
|
{
|
|
u8 *id = spinand->id.data;
|
|
int ret;
|
|
|
|
/*
|
|
* dosilicon SPI NAND read ID need a dummy byte,
|
|
* so the first byte in raw_id is dummy.
|
|
*/
|
|
if (id[1] != SPINAND_MFR_DOSILICON)
|
|
return 0;
|
|
|
|
ret = spinand_match_and_init(spinand, dosilicon_spinand_table,
|
|
ARRAY_SIZE(dosilicon_spinand_table), id[2]);
|
|
if (ret)
|
|
return ret;
|
|
|
|
return 1;
|
|
}
|
|
|
|
static int dosilicon_spinand_init(struct spinand_device *spinand)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static const struct spinand_manufacturer_ops dosilicon_spinand_manuf_ops = {
|
|
.detect = dosilicon_spinand_detect,
|
|
.init = dosilicon_spinand_init,
|
|
};
|
|
|
|
const struct spinand_manufacturer dosilicon_spinand_manufacturer = {
|
|
.id = SPINAND_MFR_DOSILICON,
|
|
.name = "dosilicon",
|
|
.ops = &dosilicon_spinand_manuf_ops,
|
|
};
|