// SPDX-License-Identifier: GPL-2.0
|
/*
|
* Copyright (c) 2021 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_UNIM_ZL 0xA1
|
#define SPINAND_MFR_UNIM 0xB0
|
|
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 tx25g01_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 tx25g01_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 tx25g01_ooblayout = {
|
.ecc = tx25g01_ooblayout_ecc,
|
.free = tx25g01_ooblayout_free,
|
};
|
|
|
static int um19a0xisw_ooblayout_ecc(struct mtd_info *mtd, int section,
|
struct mtd_oob_region *region)
|
{
|
return -ERANGE;
|
}
|
|
static int um19a0xisw_ooblayout_free(struct mtd_info *mtd, int section,
|
struct mtd_oob_region *region)
|
{
|
if (section)
|
return -ERANGE;
|
|
region->offset = 2;
|
region->length = 62;
|
|
return 0;
|
}
|
|
static const struct mtd_ooblayout_ops um19a0xisw_ooblayout = {
|
.ecc = um19a0xisw_ooblayout_ecc,
|
.free = um19a0xisw_ooblayout_free,
|
};
|
|
static int um19a1xisw_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 um19a1xisw_ooblayout_free(struct mtd_info *mtd, int section,
|
struct mtd_oob_region *region)
|
{
|
if (section)
|
return -ERANGE;
|
|
region->offset = 2;
|
region->length = 62;
|
|
return 0;
|
}
|
|
static const struct mtd_ooblayout_ops um19a1xisw_ooblayout = {
|
.ecc = um19a1xisw_ooblayout_ecc,
|
.free = um19a1xisw_ooblayout_free,
|
};
|
|
/*
|
* ecc bits: 0xC0[4,6]
|
* [0b000], No bit errors were detected;
|
* [0b001, 0b011], 1~3 Bit errors were detected and corrected. Not
|
* reach Flipping Bits;
|
* [0b100], Bit error count equals the bit flip
|
* detection threshold
|
* others, Reserved.
|
*/
|
static int tx25g01_ecc_get_status(struct spinand_device *spinand,
|
u8 status)
|
{
|
struct nand_device *nand = spinand_to_nand(spinand);
|
u8 eccsr = (status & GENMASK(6, 4)) >> 4;
|
|
if (eccsr < 4)
|
return eccsr;
|
else if (eccsr == 4)
|
return nanddev_get_ecc_requirements(nand)->strength;
|
else
|
return -EBADMSG;
|
}
|
|
/*
|
* ecc bits: 0xC0[4,6]
|
* [0b000], No bit errors were detected;
|
* [0b001] and [0b011], 1~6 Bit errors were detected and corrected. Not
|
* reach Flipping Bits;
|
* [0b101], Bit error count equals the bit flip
|
* detection threshold
|
* [0b010], Multiple bit errors were detected and
|
* not corrected.
|
* others, Reserved.
|
*/
|
static int um19axxisw_ecc_ecc_get_status(struct spinand_device *spinand,
|
u8 status)
|
{
|
struct nand_device *nand = spinand_to_nand(spinand);
|
u8 eccsr = (status & GENMASK(6, 4)) >> 4;
|
|
if (eccsr <= 1 || eccsr == 3)
|
return eccsr;
|
else if (eccsr == 5)
|
return nanddev_get_ecc_requirements(nand)->strength;
|
else
|
return -EBADMSG;
|
}
|
|
static const struct spinand_info unim_zl_spinand_table[] = {
|
SPINAND_INFO("TX25G01",
|
SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0xF1),
|
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(&tx25g01_ooblayout, tx25g01_ecc_get_status)),
|
};
|
|
static const struct spinand_info unim_spinand_table[] = {
|
SPINAND_INFO("UM19A1HISW",
|
SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x24),
|
NAND_MEMORG(1, 2048, 128, 64, 2048, 40, 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(&um19a1xisw_ooblayout, um19axxisw_ecc_ecc_get_status)),
|
SPINAND_INFO("UM19A0HCSW",
|
SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x14),
|
NAND_MEMORG(1, 2048, 64, 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(&um19a0xisw_ooblayout, um19axxisw_ecc_ecc_get_status)),
|
SPINAND_INFO("UM19A0LCSW",
|
SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x15),
|
NAND_MEMORG(1, 2048, 64, 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(&um19a0xisw_ooblayout, um19axxisw_ecc_ecc_get_status)),
|
SPINAND_INFO("UM19A1LISW",
|
SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x25),
|
NAND_MEMORG(1, 2048, 128, 64, 2048, 40, 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(&um19a1xisw_ooblayout, um19axxisw_ecc_ecc_get_status)),
|
};
|
|
static const struct spinand_manufacturer_ops unim_spinand_manuf_ops = {
|
};
|
|
const struct spinand_manufacturer unim_zl_spinand_manufacturer = {
|
.id = SPINAND_MFR_UNIM_ZL,
|
.name = "UNIM_ZL",
|
.chips = unim_zl_spinand_table,
|
.nchips = ARRAY_SIZE(unim_zl_spinand_table),
|
.ops = &unim_spinand_manuf_ops,
|
};
|
|
const struct spinand_manufacturer unim_spinand_manufacturer = {
|
.id = SPINAND_MFR_UNIM,
|
.name = "UNIM",
|
.chips = unim_spinand_table,
|
.nchips = ARRAY_SIZE(unim_spinand_table),
|
.ops = &unim_spinand_manuf_ops,
|
};
|
