--- /dev/null
+From 49c8e854869d673df8452f24dfa8989cd0f615a8 Mon Sep 17 00:00:00 2001
+From: Martin Kurbanov <mmkurbanov@salutedevices.com>
+Date: Mon, 2 Oct 2023 17:04:58 +0300
+Subject: [PATCH] mtd: spinand: add support for FORESEE F35SQA002G
+
+Add support for FORESEE F35SQA002G SPI NAND.
+Datasheet:
+ https://www.longsys.com/uploads/LM-00006FORESEEF35SQA002GDatasheet_1650183701.pdf
+
+Signed-off-by: Martin Kurbanov <mmkurbanov@salutedevices.com>
+Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
+Link: https://lore.kernel.org/linux-mtd/20231002140458.147605-1-mmkurbanov@salutedevices.com
+---
+ drivers/mtd/nand/spi/Makefile | 2 +-
+ drivers/mtd/nand/spi/core.c | 1 +
+ drivers/mtd/nand/spi/foresee.c | 95 ++++++++++++++++++++++++++++++++++
+ include/linux/mtd/spinand.h | 1 +
+ 4 files changed, 98 insertions(+), 1 deletion(-)
+ create mode 100644 drivers/mtd/nand/spi/foresee.c
+
+--- a/drivers/mtd/nand/spi/Makefile
++++ b/drivers/mtd/nand/spi/Makefile
+@@ -1,4 +1,4 @@
+ # SPDX-License-Identifier: GPL-2.0
+-spinand-objs := core.o alliancememory.o ato.o esmt.o gigadevice.o macronix.o
++spinand-objs := core.o alliancememory.o ato.o esmt.o foresee.o gigadevice.o macronix.o
+ spinand-objs += micron.o paragon.o toshiba.o winbond.o xtx.o
+ obj-$(CONFIG_MTD_SPI_NAND) += spinand.o
+--- a/drivers/mtd/nand/spi/core.c
++++ b/drivers/mtd/nand/spi/core.c
+@@ -940,6 +940,7 @@ static const struct spinand_manufacturer
+ &alliancememory_spinand_manufacturer,
+ &ato_spinand_manufacturer,
+ &esmt_c8_spinand_manufacturer,
++ &foresee_spinand_manufacturer,
+ &gigadevice_spinand_manufacturer,
+ ¯onix_spinand_manufacturer,
+ µn_spinand_manufacturer,
+--- /dev/null
++++ b/drivers/mtd/nand/spi/foresee.c
+@@ -0,0 +1,95 @@
++// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
++/*
++ * Copyright (c) 2023, SberDevices. All Rights Reserved.
++ *
++ * Author: Martin Kurbanov <mmkurbanov@salutedevices.com>
++ */
++
++#include <linux/device.h>
++#include <linux/kernel.h>
++#include <linux/mtd/spinand.h>
++
++#define SPINAND_MFR_FORESEE 0xCD
++
++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 f35sqa002g_ooblayout_ecc(struct mtd_info *mtd, int section,
++ struct mtd_oob_region *region)
++{
++ return -ERANGE;
++}
++
++static int f35sqa002g_ooblayout_free(struct mtd_info *mtd, int section,
++ struct mtd_oob_region *region)
++{
++ if (section)
++ return -ERANGE;
++
++ /* Reserve 2 bytes for the BBM. */
++ region->offset = 2;
++ region->length = 62;
++
++ return 0;
++}
++
++static const struct mtd_ooblayout_ops f35sqa002g_ooblayout = {
++ .ecc = f35sqa002g_ooblayout_ecc,
++ .free = f35sqa002g_ooblayout_free,
++};
++
++static int f35sqa002g_ecc_get_status(struct spinand_device *spinand, u8 status)
++{
++ struct nand_device *nand = spinand_to_nand(spinand);
++
++ switch (status & STATUS_ECC_MASK) {
++ case STATUS_ECC_NO_BITFLIPS:
++ return 0;
++
++ case STATUS_ECC_HAS_BITFLIPS:
++ return nanddev_get_ecc_conf(nand)->strength;
++
++ default:
++ break;
++ }
++
++ /* More than 1-bit error was detected in one or more sectors and
++ * cannot be corrected.
++ */
++ return -EBADMSG;
++}
++
++static const struct spinand_info foresee_spinand_table[] = {
++ 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),
++ SPINAND_HAS_QE_BIT,
++ SPINAND_ECCINFO(&f35sqa002g_ooblayout,
++ f35sqa002g_ecc_get_status)),
++};
++
++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,
++};
+--- a/include/linux/mtd/spinand.h
++++ b/include/linux/mtd/spinand.h
+@@ -263,6 +263,7 @@ struct spinand_manufacturer {
+ extern const struct spinand_manufacturer alliancememory_spinand_manufacturer;
+ extern const struct spinand_manufacturer ato_spinand_manufacturer;
+ extern const struct spinand_manufacturer esmt_c8_spinand_manufacturer;
++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;
+++ b/drivers/mtd/nand/spi/Makefile
@@ -1,4 +1,4 @@
# SPDX-License-Identifier: GPL-2.0
--spinand-objs := core.o alliancememory.o ato.o esmt.o gigadevice.o macronix.o
+-spinand-objs := core.o alliancememory.o ato.o esmt.o foresee.o gigadevice.o macronix.o
-spinand-objs += micron.o paragon.o toshiba.o winbond.o xtx.o
-+spinand-objs := core.o alliancememory.o ato.o esmt.o etron.o gigadevice.o
++spinand-objs := core.o alliancememory.o ato.o esmt.o etron.o foresee.o gigadevice.o
+spinand-objs += macronix.o micron.o paragon.o toshiba.o winbond.o xtx.o
obj-$(CONFIG_MTD_SPI_NAND) += spinand.o
--- a/drivers/mtd/nand/spi/core.c
&ato_spinand_manufacturer,
&esmt_c8_spinand_manufacturer,
+ &etron_spinand_manufacturer,
+ &foresee_spinand_manufacturer,
&gigadevice_spinand_manufacturer,
¯onix_spinand_manufacturer,
- µn_spinand_manufacturer,
--- /dev/null
+++ b/drivers/mtd/nand/spi/etron.c
@@ -0,0 +1,98 @@
extern const struct spinand_manufacturer ato_spinand_manufacturer;
extern const struct spinand_manufacturer esmt_c8_spinand_manufacturer;
+extern const struct spinand_manufacturer etron_spinand_manufacturer;
+ 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;
+++ b/drivers/mtd/nand/spi/Makefile
@@ -1,4 +1,4 @@
# SPDX-License-Identifier: GPL-2.0
--spinand-objs := core.o alliancememory.o ato.o esmt.o etron.o gigadevice.o
-+spinand-objs := core.o alliancememory.o ato.o esmt.o etron.o fidelix.o gigadevice.o
+-spinand-objs := core.o alliancememory.o ato.o esmt.o etron.o foresee.o gigadevice.o
++spinand-objs := core.o alliancememory.o ato.o esmt.o etron.o fidelix.o foresee.o gigadevice.o
spinand-objs += macronix.o micron.o paragon.o toshiba.o winbond.o xtx.o
obj-$(CONFIG_MTD_SPI_NAND) += spinand.o
--- a/drivers/mtd/nand/spi/core.c
+++ b/drivers/mtd/nand/spi/core.c
-@@ -941,6 +941,7 @@ static const struct spinand_manufacturer
- &alliancememory_spinand_manufacturer,
+@@ -942,6 +942,7 @@ static const struct spinand_manufacturer
&ato_spinand_manufacturer,
&esmt_c8_spinand_manufacturer,
-+ &fidelix_spinand_manufacturer,
&etron_spinand_manufacturer,
++ &fidelix_spinand_manufacturer,
+ &foresee_spinand_manufacturer,
&gigadevice_spinand_manufacturer,
¯onix_spinand_manufacturer,
--- /dev/null
extern const struct spinand_manufacturer esmt_c8_spinand_manufacturer;
extern const struct spinand_manufacturer etron_spinand_manufacturer;
+extern const struct spinand_manufacturer fidelix_spinand_manufacturer;
+ 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;
projects / openwrt / openwrt.git / commitdiff