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mtd: spinand: gsto: Add code

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GSS01GSAK1, GSS02GSAK1

Change-Id: I7ee9048d934694803d6d081cb7d0cdc56f114e79
Signed-off-by: Jon Lin <jon.lin@rock-chips.com>
This commit is contained in:
Jon Lin 2023-04-27 22:00:04 +08:00 • committed by Tao Huang
commit 1e5200d59e
4 changed files with 93 additions and 1 deletions
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2
drivers/mtd/nand/spi/Makefile
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@ -1,3 +1,3 @@
# SPDX-License-Identifier: GPL-2.0
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 skyhigh.o unim.o xtx.o
spinand-objs := core.o gigadevice.o gsto.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 skyhigh.o unim.o xtx.o
obj-$(CONFIG_MTD_SPI_NAND) += spinand.o

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

@ -856,6 +856,7 @@ static const struct spinand_manufacturer *spinand_manufacturers[] = {
&fmsh_spinand_manufacturer,
&foresee_spinand_manufacturer,
&gigadevice_spinand_manufacturer,
&gsto_spinand_manufacturer,
&hyf_spinand_manufacturer,
&jsc_spinand_manufacturer,
&macronix_spinand_manufacturer,

90
drivers/mtd/nand/spi/gsto.c Normal file
View file

@ -0,0 +1,90 @@
// 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,
};

1
include/linux/mtd/spinand.h
View file

@ -245,6 +245,7 @@ extern const struct spinand_manufacturer etron_spinand_manufacturer;
extern const struct spinand_manufacturer fmsh_spinand_manufacturer;
extern const struct spinand_manufacturer foresee_spinand_manufacturer;
extern const struct spinand_manufacturer gigadevice_spinand_manufacturer;
extern const struct spinand_manufacturer gsto_spinand_manufacturer;
extern const struct spinand_manufacturer hyf_spinand_manufacturer;
extern const struct spinand_manufacturer jsc_spinand_manufacturer;
extern const struct spinand_manufacturer macronix_spinand_manufacturer;