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drivers: mtd: nand: Add FORESEE F35SQA001G/002G support. 

Signed-off-by: Yilin Sun <imi415@imi.moe>
This commit is contained in:
Yilin Sun 2024-01-11 09:34:15 +08:00
parent 4eb8e11576
commit 9aa63a2ab5
Signed by: imi415
GPG Key ID: 17F01E106F9F5E0A
4 changed files with 100 additions and 1 deletions
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2
drivers/mtd/nand/spi/Makefile
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@ -1,4 +1,4 @@
# SPDX-License-Identifier: GPL-2.0
spinand-objs := core.o gigadevice.o macronix.o micron.o paragon.o toshiba.o winbond.o
spinand-objs := core.o foresee.o gigadevice.o macronix.o micron.o paragon.o toshiba.o winbond.o
obj-$(CONFIG_MTD_SPI_NAND) += spinand.o

1
drivers/mtd/nand/spi/core.c
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@ -822,6 +822,7 @@ static const struct nand_ops spinand_ops = {
};
static const struct spinand_manufacturer *spinand_manufacturers[] = {
&foresee_spinand_manufacturer,
&gigadevice_spinand_manufacturer,
&macronix_spinand_manufacturer,
&micron_spinand_manufacturer,

97
drivers/mtd/nand/spi/foresee.c Normal file
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@ -0,0 +1,97 @@
// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (c) 2017 exceet electronics GmbH
* Copyright (c) 2024 Yilin Sun
*
* Authors:
* Frieder Schrempf <frieder.schrempf@exceet.de>
* Boris Brezillon <boris.brezillon@bootlin.com>
* Yilin Sun <imi415@imi.moe>
*/
#ifndef __UBOOT__
#include <linux/device.h>
#include <linux/kernel.h>
#endif
#include <linux/bug.h>
#include <linux/mtd/spinand.h>
#define SPINAND_MFR_FORESEE 0xCD
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 f35sqa001g_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 f35sqa001g_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 f35sqa001g_ooblayout = {
.ecc = f35sqa001g_ooblayout_ecc,
.rfree = f35sqa001g_ooblayout_free,
};
static const struct spinand_info foresee_spinand_table[] = {
SPINAND_INFO("F35SQA001G",
SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x71, 0x71),
NAND_MEMORG(1, 2048, 64, 64, 1024, 20, 1, 1, 1),
NAND_ECCREQ(1, 512),
SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
&write_cache_variants,
&update_cache_variants),
0,
SPINAND_ECCINFO(&f35sqa001g_ooblayout, NULL)),
SPINAND_INFO("F35SQA002G",
SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x72, 0x72),
NAND_MEMORG(1, 2048, 64, 64, 2048, 40, 1, 1, 1),
NAND_ECCREQ(1, 512),
SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
&write_cache_variants,
&update_cache_variants),
0,
SPINAND_ECCINFO(&f35sqa001g_ooblayout, NULL)),
};
static const struct spinand_manufacturer_ops foresee_spinand_manuf_ops = {
};
const struct spinand_manufacturer foresee_spinand_manufacturer = {
.id = SPINAND_MFR_FORESEE,
.name = "FORESEE",
.chips = foresee_spinand_table,
.nchips = ARRAY_SIZE(foresee_spinand_table),
.ops = &foresee_spinand_manuf_ops,
};

1
include/linux/mtd/spinand.h
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@ -245,6 +245,7 @@ struct spinand_manufacturer {
};
/* SPI NAND manufacturers */
extern const struct spinand_manufacturer foresee_spinand_manufacturer;
extern const struct spinand_manufacturer gigadevice_spinand_manufacturer;
extern const struct spinand_manufacturer macronix_spinand_manufacturer;
extern const struct spinand_manufacturer micron_spinand_manufacturer;