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mtd: spinand: Support xtx

Browse Source 
XT26G01A, XT26G02A, XT26G04A, XT26G01B, XT26G02B, XT26G01C, XT26G02C,
XT26G04C, XT26G11C

Change-Id: I3397f0a1f29c09a10446b3838504dc77d867f124
Signed-off-by: Jon Lin <jon.lin@rock-chips.com>
This commit is contained in:
Jon Lin
2021-10-17 10:54:38 +08:00
committed by Tao Huang
parent c691a1418d
commit 2fb4d11d5e
4 changed files with 311 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/mtd/nand/spi/Makefile
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@@ -1,3 +1,3 @@
# SPDX-License-Identifier: GPL-2.0
spinand-objs := biwin.o core.o dosilicon.o esmt.o etron.o fmsh.o foresee.o gigadevice.o hyf.o jsc.o macronix.o micron.o paragon.o silicongo.o toshiba.o unim.o winbond.o
spinand-objs := core.o gigadevice.o macronix.o micron.o paragon.o toshiba.o winbond.o biwin.o dosilicon.o esmt.o etron.o fmsh.o foresee.o hyf.o jsc.o silicongo.o unim.o xtx.o
obj-$(CONFIG_MTD_SPI_NAND) += spinand.o

1
drivers/mtd/nand/spi/core.c
View File

@@ -865,6 +865,7 @@ static const struct spinand_manufacturer *spinand_manufacturers[] = {
&toshiba_spinand_manufacturer,
&unim_spinand_manufacturer,
&winbond_spinand_manufacturer,
&xtx_spinand_manufacturer,
};
static int spinand_manufacturer_match(struct spinand_device *spinand,

308
drivers/mtd/nand/spi/xtx.c Normal file
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@@ -0,0 +1,308 @@
// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (c) 2020 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_XTX 0x0B
static SPINAND_OP_VARIANTS(read_cache_variants,
SPINAND_PAGE_READ_FROM_CACHE_X4_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 xt26g0xa_ooblayout_ecc(struct mtd_info *mtd, int section,
struct mtd_oob_region *region)
{
if (section)
return -ERANGE;
region->offset = 48;
region->length = 16;
return 0;
}
static int xt26g0xa_ooblayout_free(struct mtd_info *mtd, int section,
struct mtd_oob_region *region)
{
if (section)
return -ERANGE;
region->offset = 2;
region->length = mtd->oobsize - 18;
return 0;
}
static const struct mtd_ooblayout_ops xt26g0xa_ooblayout = {
.ecc = xt26g0xa_ooblayout_ecc,
.free = xt26g0xa_ooblayout_free,
};
static int xt26g01b_ooblayout_ecc(struct mtd_info *mtd, int section,
struct mtd_oob_region *region)
{
return -ERANGE;
}
static int xt26g01b_ooblayout_free(struct mtd_info *mtd, int section,
struct mtd_oob_region *region)
{
if (section)
return -ERANGE;
region->offset = 2;
region->length = mtd->oobsize - 2;
return 0;
}
static const struct mtd_ooblayout_ops xt26g01b_ooblayout = {
.ecc = xt26g01b_ooblayout_ecc,
.free = xt26g01b_ooblayout_free,
};
static int xt26g02b_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 xt26g02b_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 xt26g02b_ooblayout = {
.ecc = xt26g02b_ooblayout_ecc,
.free = xt26g02b_ooblayout_free,
};
static int xt26g01c_ooblayout_ecc(struct mtd_info *mtd, int section,
struct mtd_oob_region *region)
{
if (section)
return -ERANGE;
region->offset = mtd->oobsize / 2;
region->length = mtd->oobsize / 2;
return 0;
}
static int xt26g01c_ooblayout_free(struct mtd_info *mtd, int section,
struct mtd_oob_region *region)
{
if (section)
return -ERANGE;
region->offset = 2;
region->length = mtd->oobsize / 2 - 2;
return 0;
}
static const struct mtd_ooblayout_ops xt26g01c_ooblayout = {
.ecc = xt26g01c_ooblayout_ecc,
.free = xt26g01c_ooblayout_free,
};
/*
* ecc bits: 0xC0[2,5]
* [0x0000], No bit errors were detected;
* [0x0001, 0x0111], Bit errors were detected and corrected. Not
* reach Flipping Bits;
* [0x1000], Multiple bit errors were detected and
* not corrected.
* [0x1100], Bit error count equals the bit flip
* detectionthreshold
* else, reserved
*/
static int xt26g0xa_ecc_get_status(struct spinand_device *spinand,
u8 status)
{
u8 eccsr = (status & GENMASK(5, 2)) >> 2;
if (eccsr <= 7)
return eccsr;
else if (eccsr == 12)
return 8;
else
return -EBADMSG;
}
/*
* ecc bits: 0xC0[4,6]
* [0x0], No bit errors were detected;
* [0x001, 0x011], Bit errors were detected and corrected. Not
* reach Flipping Bits;
* [0x100], Bit error count equals the bit flip
* detectionthreshold
* [0x101, 0x110], Reserved;
* [0x111], Multiple bit errors were detected and
* not corrected.
*/
static int xt26g02b_ecc_get_status(struct spinand_device *spinand,
u8 status)
{
u8 eccsr = (status & GENMASK(6, 4)) >> 4;
if (eccsr <= 4)
return eccsr;
else
return -EBADMSG;
}
/*
* ecc bits: 0xC0[4,7]
* [0b0000], No bit errors were detected;
* [0b0001, 0b0111], 1-7 Bit errors were detected and corrected. Not
* reach Flipping Bits;
* [0b1000], 8 Bit errors were detected and corrected. Bit error count
* equals the bit flip detectionthreshold;
* [0b1111], Bit errors greater than ECC capability(8 bits) and not corrected;
* others, Reserved.
*/
static int xt26g01c_ecc_get_status(struct spinand_device *spinand,
u8 status)
{
u8 eccsr = (status & GENMASK(7, 4)) >> 4;
if (eccsr <= 8)
return eccsr;
else
return -EBADMSG;
}
static const struct spinand_info xtx_spinand_table[] = {
SPINAND_INFO("XT26G01A",
SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0xE1),
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(&xt26g0xa_ooblayout,
xt26g0xa_ecc_get_status)),
SPINAND_INFO("XT26G02A",
SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0xE2),
NAND_MEMORG(1, 2048, 64, 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(&xt26g0xa_ooblayout,
xt26g0xa_ecc_get_status)),
SPINAND_INFO("XT26G04A",
SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0xE3),
NAND_MEMORG(1, 2048, 64, 128, 2048, 80, 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(&xt26g0xa_ooblayout,
xt26g0xa_ecc_get_status)),
SPINAND_INFO("XT26G01B",
SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0xF1),
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(&xt26g01b_ooblayout,
xt26g0xa_ecc_get_status)),
SPINAND_INFO("XT26G02B",
SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0xF2),
NAND_MEMORG(1, 2048, 64, 64, 2048, 40, 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(&xt26g02b_ooblayout,
xt26g02b_ecc_get_status)),
SPINAND_INFO("XT26G01C",
SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x11),
NAND_MEMORG(1, 2048, 128, 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(&xt26g01c_ooblayout,
xt26g01c_ecc_get_status)),
SPINAND_INFO("XT26G02C",
SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x12),
NAND_MEMORG(1, 2048, 64, 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(&xt26g0xa_ooblayout,
xt26g01c_ecc_get_status)),
SPINAND_INFO("XT26G04C",
SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x13),
NAND_MEMORG(1, 4096, 256, 64, 2048, 80, 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(&xt26g01c_ooblayout,
xt26g01c_ecc_get_status)),
SPINAND_INFO("XT26G11C",
SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x15),
NAND_MEMORG(1, 2048, 128, 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(&xt26g01c_ooblayout,
xt26g01c_ecc_get_status)),
};
static const struct spinand_manufacturer_ops xtx_spinand_manuf_ops = {
};
const struct spinand_manufacturer xtx_spinand_manufacturer = {
.id = SPINAND_MFR_XTX,
.name = "xtx",
.chips = xtx_spinand_table,
.nchips = ARRAY_SIZE(xtx_spinand_table),
.ops = &xtx_spinand_manuf_ops,
};

1
include/linux/mtd/spinand.h
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@@ -254,6 +254,7 @@ extern const struct spinand_manufacturer toshiba_spinand_manufacturer;
extern const struct spinand_manufacturer silicongo_spinand_manufacturer;
extern const struct spinand_manufacturer unim_spinand_manufacturer;
extern const struct spinand_manufacturer winbond_spinand_manufacturer;
extern const struct spinand_manufacturer xtx_spinand_manufacturer;
/**
* struct spinand_op_variants - SPI NAND operation variants