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openwrt/package/boot/uboot-mediatek/patches/100-22-mtd-spi-nand-backport-from-upstream-kernel.patch
Daniel Golle f8c22c9bff uboot-mediatek: update to U-Boot 2024.10 
Update to latest U-Boot release.
Patches refreshed and fixed when needed.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
2024-10-13 03:00:45 +01:00

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From 8d0665327819c41fce2c8d50f19c967b22eae564 Mon Sep 17 00:00:00 2001
From: Weijie Gao <weijie.gao@mediatek.com>
Date: Wed, 27 Jul 2022 16:36:13 +0800
Subject: [PATCH 57/71] mtd: spi-nand: backport from upstream kernel
Backport new features from upstream kernel
Signed-off-by: Weijie Gao <weijie.gao@mediatek.com>
---
drivers/mtd/nand/spi/Kconfig | 1 +
drivers/mtd/nand/spi/Makefile | 2 +-
drivers/mtd/nand/spi/core.c | 102 ++++++----
drivers/mtd/nand/spi/etron.c | 181 +++++++++++++++++
drivers/mtd/nand/spi/gigadevice.c | 322 ++++++++++++++++++++++++++----
drivers/mtd/nand/spi/macronix.c | 173 +++++++++++++---
drivers/mtd/nand/spi/micron.c | 50 ++---
drivers/mtd/nand/spi/toshiba.c | 66 +++---
drivers/mtd/nand/spi/winbond.c | 164 ++++++++++++---
include/linux/mtd/spinand.h | 87 +++++---
10 files changed, 923 insertions(+), 225 deletions(-)
create mode 100644 drivers/mtd/nand/spi/etron.c
--- a/drivers/mtd/nand/spi/Makefile
+++ b/drivers/mtd/nand/spi/Makefile
@@ -1,5 +1,5 @@
# SPDX-License-Identifier: GPL-2.0
-spinand-objs := core.o esmt.o gigadevice.o macronix.o micron.o paragon.o
+spinand-objs := core.o esmt.o etron.o gigadevice.o macronix.o micron.o paragon.o
spinand-objs += 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
@@ -826,6 +826,7 @@ static const struct nand_ops spinand_ops
};
static const struct spinand_manufacturer *spinand_manufacturers[] = {
+ &etron_spinand_manufacturer,
&gigadevice_spinand_manufacturer,
&macronix_spinand_manufacturer,
&micron_spinand_manufacturer,
--- /dev/null
+++ b/drivers/mtd/nand/spi/etron.c
@@ -0,0 +1,181 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2020 Etron Technology, Inc.
+ *
+ */
+#ifndef __UBOOT__
+#include <malloc.h>
+#include <linux/device.h>
+#include <linux/kernel.h>
+#endif
+#include <linux/bug.h>
+#include <linux/mtd/spinand.h>
+
+#define SPINAND_MFR_ETRON 0xD5
+
+#define STATUS_ECC_LIMIT_BITFLIPS (3 << 4)
+
+static SPINAND_OP_VARIANTS(read_cache_variants,
+ SPINAND_PAGE_READ_FROM_CACHE_QUADIO_OP(0, 1, 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 etron_ooblayout_ecc(struct mtd_info *mtd, int section,
+ struct mtd_oob_region *region)
+{
+ if (section > 3)
+ return -ERANGE;
+
+ region->offset = (14 * section) + 72;
+ region->length = 14;
+
+ return 0;
+}
+
+static int etron_ooblayout_free(struct mtd_info *mtd, int section,
+ struct mtd_oob_region *region)
+{
+ if (section > 3)
+ return -ERANGE;
+
+ if (section) {
+ region->offset = 18 * section;
+ region->length = 18;
+ } else {
+ /* section 0 has one byte reserved for bad block mark */
+ region->offset = 2;
+ region->length = 16;
+ }
+ return 0;
+}
+
+static const struct mtd_ooblayout_ops etron_ooblayout = {
+ .ecc = etron_ooblayout_ecc,
+ .rfree = etron_ooblayout_free,
+};
+
+static int etron_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_UNCOR_ERROR:
+ return -EBADMSG;
+
+ case STATUS_ECC_HAS_BITFLIPS:
+ return nand->eccreq.strength >> 1;
+
+ case STATUS_ECC_LIMIT_BITFLIPS:
+ return nand->eccreq.strength;
+
+ default:
+ break;
+ }
+
+ return -EINVAL;
+}
+
+static const struct spinand_info etron_spinand_table[] = {
+ /* EM73C 1Gb 3.3V */
+ SPINAND_INFO("EM73C044VCF",
+ SPINAND_ID(SPINAND_READID_METHOD_OPCODE_ADDR, 0x25),
+ 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(&etron_ooblayout, etron_ecc_get_status)),
+ /* EM7xD 2Gb */
+ SPINAND_INFO("EM73D044VCR",
+ SPINAND_ID(SPINAND_READID_METHOD_OPCODE_ADDR, 0x41),
+ 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(&etron_ooblayout, etron_ecc_get_status)),
+ SPINAND_INFO("EM73D044VCO",
+ SPINAND_ID(SPINAND_READID_METHOD_OPCODE_ADDR, 0x3A),
+ NAND_MEMORG(1, 2048, 128, 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(&etron_ooblayout, etron_ecc_get_status)),
+ SPINAND_INFO("EM78D044VCM",
+ SPINAND_ID(SPINAND_READID_METHOD_OPCODE_ADDR, 0x8E),
+ NAND_MEMORG(1, 2048, 128, 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(&etron_ooblayout, etron_ecc_get_status)),
+ /* EM7xE 4Gb */
+ SPINAND_INFO("EM73E044VCE",
+ SPINAND_ID(SPINAND_READID_METHOD_OPCODE_ADDR, 0x3B),
+ NAND_MEMORG(1, 2048, 128, 64, 4096, 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(&etron_ooblayout, etron_ecc_get_status)),
+ SPINAND_INFO("EM78E044VCD",
+ SPINAND_ID(SPINAND_READID_METHOD_OPCODE_ADDR, 0x8F),
+ NAND_MEMORG(1, 2048, 128, 64, 4096, 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(&etron_ooblayout, etron_ecc_get_status)),
+ /* EM7xF044VCA 8Gb */
+ SPINAND_INFO("EM73F044VCA",
+ SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x15),
+ NAND_MEMORG(1, 4096, 256, 64, 4096, 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(&etron_ooblayout, etron_ecc_get_status)),
+ SPINAND_INFO("EM78F044VCA",
+ SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x8D),
+ NAND_MEMORG(1, 4096, 256, 64, 4096, 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(&etron_ooblayout, etron_ecc_get_status)),
+};
+
+static const struct spinand_manufacturer_ops etron_spinand_manuf_ops = {
+};
+
+const struct spinand_manufacturer etron_spinand_manufacturer = {
+ .id = SPINAND_MFR_ETRON,
+ .name = "Etron",
+ .chips = etron_spinand_table,
+ .nchips = ARRAY_SIZE(etron_spinand_table),
+ .ops = &etron_spinand_manuf_ops,
+};
--- a/drivers/mtd/nand/spi/gigadevice.c
+++ b/drivers/mtd/nand/spi/gigadevice.c
@@ -43,6 +43,24 @@ static SPINAND_OP_VARIANTS(read_cache_va
SPINAND_PAGE_READ_FROM_CACHE_OP_3A(true, 0, 1, NULL, 0),
SPINAND_PAGE_READ_FROM_CACHE_OP_3A(false, 0, 0, NULL, 0));
+/* Q5 1Gb */
+static SPINAND_OP_VARIANTS(dummy2_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));
+
+/* Q5 2Gb & 4Gb */
+static SPINAND_OP_VARIANTS(dummy4_read_cache_variants,
+ SPINAND_PAGE_READ_FROM_CACHE_QUADIO_OP(0, 4, NULL, 0),
+ SPINAND_PAGE_READ_FROM_CACHE_X4_OP(0, 1, NULL, 0),
+ SPINAND_PAGE_READ_FROM_CACHE_DUALIO_OP(0, 2, 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));
@@ -268,7 +286,45 @@ static int gd5fxgq4ufxxg_ecc_get_status(
return -EINVAL;
}
+static int esmt_1_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 esmt_1_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 esmt_1_ooblayout = {
+ .ecc = esmt_1_ooblayout_ecc,
+ .rfree = esmt_1_ooblayout_free,
+ };
+
static const struct spinand_info gigadevice_spinand_table[] = {
+ SPINAND_INFO("F50L1G41LB",
+ SPINAND_ID(SPINAND_READID_METHOD_OPCODE_ADDR, 0x01),
+ NAND_MEMORG(1, 2048, 64, 64, 1024, 20, 1, 1, 1),
+ NAND_ECCREQ(8, 512),
+ SPINAND_INFO_OP_VARIANTS(&dummy2_read_cache_variants,
+ &write_cache_variants,
+ &update_cache_variants),
+ 0,
+ SPINAND_ECCINFO(&esmt_1_ooblayout, NULL)),
SPINAND_INFO("GD5F1GQ4xA",
SPINAND_ID(SPINAND_READID_METHOD_OPCODE_ADDR, 0xf1),
NAND_MEMORG(1, 2048, 64, 64, 1024, 20, 1, 1, 1),
@@ -349,6 +405,87 @@ static const struct spinand_info gigadev
SPINAND_HAS_QE_BIT,
SPINAND_ECCINFO(&gd5fxgqx_variant2_ooblayout,
gd5fxgq5xexxg_ecc_get_status)),
+ SPINAND_INFO("GD5F2GQ5UExxG",
+ SPINAND_ID(SPINAND_READID_METHOD_OPCODE_ADDR, 0x52),
+ NAND_MEMORG(1, 2048, 128, 64, 2048, 40, 1, 1, 1),
+ NAND_ECCREQ(4, 512),
+ SPINAND_INFO_OP_VARIANTS(&dummy4_read_cache_variants,
+ &write_cache_variants,
+ &update_cache_variants),
+ SPINAND_HAS_QE_BIT,
+ SPINAND_ECCINFO(&gd5fxgqx_variant2_ooblayout,
+ gd5fxgq5xexxg_ecc_get_status)),
+ SPINAND_INFO("GD5F4GQ6UExxG",
+ SPINAND_ID(SPINAND_READID_METHOD_OPCODE_ADDR, 0x55),
+ NAND_MEMORG(1, 2048, 128, 64, 4096, 80, 1, 1, 1),
+ NAND_ECCREQ(4, 512),
+ SPINAND_INFO_OP_VARIANTS(&dummy4_read_cache_variants,
+ &write_cache_variants,
+ &update_cache_variants),
+ SPINAND_HAS_QE_BIT,
+ SPINAND_ECCINFO(&gd5fxgqx_variant2_ooblayout,
+ gd5fxgq5xexxg_ecc_get_status)),
+ SPINAND_INFO("GD5F1GM7UExxG",
+ SPINAND_ID(SPINAND_READID_METHOD_OPCODE_ADDR, 0x91),
+ 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(&gd5fxgqx_variant2_ooblayout,
+ gd5fxgq4uexxg_ecc_get_status)),
+ SPINAND_INFO("GD5F2GM7UExxG",
+ SPINAND_ID(SPINAND_READID_METHOD_OPCODE_ADDR, 0x92),
+ NAND_MEMORG(1, 2048, 128, 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(&gd5fxgqx_variant2_ooblayout,
+ gd5fxgq4uexxg_ecc_get_status)),
+ SPINAND_INFO("GD5F4GM8UExxG",
+ SPINAND_ID(SPINAND_READID_METHOD_OPCODE_ADDR, 0x95),
+ NAND_MEMORG(1, 2048, 128, 64, 4096, 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(&gd5fxgqx_variant2_ooblayout,
+ gd5fxgq4uexxg_ecc_get_status)),
+ SPINAND_INFO("GD5F1GQ5UExxH",
+ SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x31),
+ NAND_MEMORG(1, 2048, 64, 64, 1024, 20, 1, 1, 1),
+ NAND_ECCREQ(4, 512),
+ SPINAND_INFO_OP_VARIANTS(&dummy2_read_cache_variants,
+ &write_cache_variants,
+ &update_cache_variants),
+ SPINAND_HAS_QE_BIT,
+ SPINAND_ECCINFO(&gd5fxgqx_variant2_ooblayout,
+ gd5fxgq5xexxg_ecc_get_status)),
+ SPINAND_INFO("GD5F2GQ5UExxH",
+ SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x32),
+ NAND_MEMORG(1, 2048, 64, 64, 2048, 40, 1, 1, 1),
+ NAND_ECCREQ(4, 512),
+ SPINAND_INFO_OP_VARIANTS(&dummy4_read_cache_variants,
+ &write_cache_variants,
+ &update_cache_variants),
+ SPINAND_HAS_QE_BIT,
+ SPINAND_ECCINFO(&gd5fxgqx_variant2_ooblayout,
+ gd5fxgq5xexxg_ecc_get_status)),
+ SPINAND_INFO("GD5F4GQ6UExxH",
+ SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x35),
+ NAND_MEMORG(1, 2048, 64, 64, 4096, 40, 1, 1, 1),
+ NAND_ECCREQ(4, 512),
+ SPINAND_INFO_OP_VARIANTS(&dummy4_read_cache_variants,
+ &write_cache_variants,
+ &update_cache_variants),
+ SPINAND_HAS_QE_BIT,
+ SPINAND_ECCINFO(&gd5fxgqx_variant2_ooblayout,
+ gd5fxgq5xexxg_ecc_get_status)),
+
};
static const struct spinand_manufacturer_ops gigadevice_spinand_manuf_ops = {
--- a/drivers/mtd/nand/spi/winbond.c
+++ b/drivers/mtd/nand/spi/winbond.c
@@ -18,6 +18,23 @@
#define WINBOND_CFG_BUF_READ BIT(3)
+#define W25N02_N04KV_STATUS_ECC_MASK (3 << 4)
+#define W25N02_N04KV_STATUS_ECC_NO_BITFLIPS (0 << 4)
+#define W25N02_N04KV_STATUS_ECC_1_4_BITFLIPS (1 << 4)
+#define W25N02_N04KV_STATUS_ECC_5_8_BITFLIPS (3 << 4)
+#define W25N02_N04KV_STATUS_ECC_UNCOR_ERROR (2 << 4)
+
+#define W25N01_M02GV_STATUS_ECC_MASK (3 << 4)
+#define W25N01_M02GV_STATUS_ECC_NO_BITFLIPS (0 << 4)
+#define W25N01_M02GV_STATUS_ECC_1_BITFLIPS (1 << 4)
+#define W25N01_M02GV_STATUS_ECC_UNCOR_ERROR (2 << 4)
+
+#define W25N01KV_STATUS_ECC_MASK (3 << 4)
+#define W25N01KV_STATUS_ECC_NO_BITFLIPS (0 << 4)
+#define W25N01KV_STATUS_ECC_1_3_BITFLIPS (1 << 4)
+#define W25N01KV_STATUS_ECC_4_BITFLIPS (3 << 4)
+#define W25N01KV_STATUS_ECC_UNCOR_ERROR (2 << 4)
+
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),
@@ -34,6 +51,35 @@ static SPINAND_OP_VARIANTS(update_cache_
SPINAND_PROG_LOAD_X4(false, 0, NULL, 0),
SPINAND_PROG_LOAD(false, 0, NULL, 0));
+static int w25n02kv_n04kv_ooblayout_ecc(struct mtd_info *mtd, int section,
+ struct mtd_oob_region *region)
+{
+ if (section > 3)
+ return -ERANGE;
+
+ region->offset = (16 * section) + 64;
+ region->length = 16;
+
+ return 0;
+}
+
+static int w25n02kv_n04kv_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 = 14;
+
+ return 0;
+}
+
+static const struct mtd_ooblayout_ops w25n02kv_n04kv_ooblayout = {
+ .ecc = w25n02kv_n04kv_ooblayout_ecc,
+ .rfree = w25n02kv_n04kv_ooblayout_free,
+};
+
static int w25m02gv_ooblayout_ecc(struct mtd_info *mtd, int section,
struct mtd_oob_region *region)
{
@@ -106,6 +152,58 @@ static const struct mtd_ooblayout_ops w2
.rfree = w25n02kv_ooblayout_free,
};
+static int w25n01kv_ecc_get_status(struct spinand_device *spinand,
+ u8 status)
+{
+ switch (status & W25N01KV_STATUS_ECC_MASK) {
+ case W25N01KV_STATUS_ECC_NO_BITFLIPS:
+ return 0;
+
+ case W25N01KV_STATUS_ECC_1_3_BITFLIPS:
+ return 3;
+
+ case W25N01KV_STATUS_ECC_4_BITFLIPS:
+ return 4;
+
+ case W25N01KV_STATUS_ECC_UNCOR_ERROR:
+ return -EBADMSG;
+
+ default:
+ break;
+ }
+
+ return -EINVAL;
+}
+
+static int w25n02kv_n04kv_ecc_get_status(struct spinand_device *spinand,
+ u8 status)
+{
+ switch (status & W25N02_N04KV_STATUS_ECC_MASK) {
+ case W25N02_N04KV_STATUS_ECC_NO_BITFLIPS:
+ return 0;
+
+ case W25N02_N04KV_STATUS_ECC_1_4_BITFLIPS:
+ return 3;
+
+ case W25N02_N04KV_STATUS_ECC_5_8_BITFLIPS:
+ return 4;
+
+ /* W25N02_N04KV_use internal 8bit ECC algorithm.
+ * But the ECC strength is 4 bit requried.
+ * Return 3 if the bit bit flip count less than 5.
+ * Return 4 if the bit bit flip count more than 5 to 8.
+ */
+
+ case W25N02_N04KV_STATUS_ECC_UNCOR_ERROR:
+ return -EBADMSG;
+
+ default:
+ break;
+ }
+
+ return -EINVAL;
+}
+
static int w25n02kv_ecc_get_status(struct spinand_device *spinand,
u8 status)
{
@@ -163,6 +261,15 @@ static const struct spinand_info winbond
&update_cache_variants),
0,
SPINAND_ECCINFO(&w25m02gv_ooblayout, NULL)),
+ SPINAND_INFO("W25N01KV",
+ SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0xae, 0x21),
+ 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),
+ 0,
+ SPINAND_ECCINFO(&w25n02kv_n04kv_ooblayout, w25n01kv_ecc_get_status)),
SPINAND_INFO("W25N02KV",
SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0xaa, 0x22),
NAND_MEMORG(1, 2048, 128, 64, 2048, 40, 1, 1, 1),
@@ -172,6 +279,16 @@ static const struct spinand_info winbond
&update_cache_variants),
0,
SPINAND_ECCINFO(&w25n02kv_ooblayout, w25n02kv_ecc_get_status)),
+ SPINAND_INFO("W25N04KV",
+ SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0xaa, 0x23),
+ NAND_MEMORG(1, 2048, 128, 64, 4096, 80, 2, 1, 1),
+ NAND_ECCREQ(4, 512),
+ SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
+ &write_cache_variants,
+ &update_cache_variants),
+ 0,
+ SPINAND_ECCINFO(&w25n02kv_n04kv_ooblayout,
+ w25n02kv_n04kv_ecc_get_status)),
};
static int winbond_spinand_init(struct spinand_device *spinand)
--- a/include/linux/mtd/spinand.h
+++ b/include/linux/mtd/spinand.h
@@ -244,6 +244,7 @@ struct spinand_manufacturer {
};
/* SPI NAND manufacturers */
+extern const struct spinand_manufacturer etron_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;
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