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mtd: spinand: Support silicongo

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SGM7000I-S24W1GH

Change-Id: I8bdaa383fd5977b4ee0828a04ddc738a1af0376a
Signed-off-by: Jon Lin <jon.lin@rock-chips.com>
This commit is contained in:
Jon Lin
2021-10-17 10:39:17 +08:00
committed by Tao Huang
parent fea785563f
commit fce55885fd
4 changed files with 78 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 := 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 toshiba.o winbond.o
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 winbond.o
obj-$(CONFIG_MTD_SPI_NAND) += spinand.o

1
drivers/mtd/nand/spi/core.c
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@@ -861,6 +861,7 @@ static const struct spinand_manufacturer *spinand_manufacturers[] = {
&macronix_spinand_manufacturer,
&micron_spinand_manufacturer,
&paragon_spinand_manufacturer,
&silicongo_spinand_manufacturer,
&toshiba_spinand_manufacturer,
&winbond_spinand_manufacturer,
};

75
drivers/mtd/nand/spi/silicongo.c Normal file
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@@ -0,0 +1,75 @@
// 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_SILICONGO 0xEA
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 sgm7000i_ooblayout_ecc(struct mtd_info *mtd, int section,
struct mtd_oob_region *region)
{
return -ERANGE;
}
static int sgm7000i_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 sgm7000i_ooblayout = {
.ecc = sgm7000i_ooblayout_ecc,
.free = sgm7000i_ooblayout_free,
};
static const struct spinand_info silicongo_spinand_table[] = {
SPINAND_INFO("SGM7000I-S24W1GH",
SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0xC1),
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(&sgm7000i_ooblayout, NULL)),
};
static const struct spinand_manufacturer_ops silicongo_spinand_manuf_ops = {
};
const struct spinand_manufacturer silicongo_spinand_manufacturer = {
.id = SPINAND_MFR_SILICONGO,
.name = "silicongo",
.chips = silicongo_spinand_table,
.nchips = ARRAY_SIZE(silicongo_spinand_table),
.ops = &silicongo_spinand_manuf_ops,
};

1
include/linux/mtd/spinand.h
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@@ -251,6 +251,7 @@ extern const struct spinand_manufacturer macronix_spinand_manufacturer;
extern const struct spinand_manufacturer micron_spinand_manufacturer;
extern const struct spinand_manufacturer paragon_spinand_manufacturer;
extern const struct spinand_manufacturer toshiba_spinand_manufacturer;
extern const struct spinand_manufacturer silicongo_spinand_manufacturer;
extern const struct spinand_manufacturer winbond_spinand_manufacturer;
/**