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kernel: mtd: spinand: esmt: add support for F50L1G41LC

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Backport upstream patch to add support for the ESMT F50L1G41LC flash
chip. It is used in multiple Cudy products manufactured starting
November 2025.

Link: https://github.com/openwrt/openwrt/pull/20962
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
This commit is contained in:
Hauke Mehrtens 2025-11-27 21:13:04 +01:00
parent 1f879b8839
commit 9424b2b786
11 changed files with 106 additions and 22 deletions
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6
target/linux/airoha/patches-6.12/901-snand-mtk-bmt-support.patch
View file

@ -8,7 +8,7 @@
static int spinand_read_reg_op(struct spinand_device *spinand, u8 reg, u8 *val)
{
@@ -1574,6 +1575,7 @@ static int spinand_probe(struct spi_mem
@@ -1575,6 +1576,7 @@ static int spinand_probe(struct spi_mem
if (ret)
return ret;
@ -16,7 +16,7 @@
ret = mtd_device_register(mtd, NULL, 0);
if (ret)
goto err_spinand_cleanup;
@@ -1581,6 +1583,7 @@ static int spinand_probe(struct spi_mem
@@ -1582,6 +1584,7 @@ static int spinand_probe(struct spi_mem
return 0;
err_spinand_cleanup:
@ -24,7 +24,7 @@
spinand_cleanup(spinand);
return ret;
@@ -1599,6 +1602,7 @@ static int spinand_remove(struct spi_mem
@@ -1600,6 +1603,7 @@ static int spinand_remove(struct spi_mem
if (ret)
return ret;

6
target/linux/econet/patches-6.12/902-snand-mtk-bmt-support.patch
View file

@ -8,7 +8,7 @@
static int spinand_read_reg_op(struct spinand_device *spinand, u8 reg, u8 *val)
{
@@ -1574,6 +1575,7 @@ static int spinand_probe(struct spi_mem
@@ -1575,6 +1576,7 @@ static int spinand_probe(struct spi_mem
if (ret)
return ret;
@ -16,7 +16,7 @@
ret = mtd_device_register(mtd, NULL, 0);
if (ret)
goto err_spinand_cleanup;
@@ -1581,6 +1583,7 @@ static int spinand_probe(struct spi_mem
@@ -1582,6 +1584,7 @@ static int spinand_probe(struct spi_mem
return 0;
err_spinand_cleanup:
@ -24,7 +24,7 @@
spinand_cleanup(spinand);
return ret;
@@ -1599,6 +1602,7 @@ static int spinand_remove(struct spi_mem
@@ -1600,6 +1603,7 @@ static int spinand_remove(struct spi_mem
if (ret)
return ret;

84
target/linux/generic/backport-6.12/422-v6.19-mtd-spinand-esmt-add-support-for-F50L1G41LC.patch Normal file
View file

@ -0,0 +1,84 @@
From b98994cb9bc24f5c7575c86650f96c384576fdfa Mon Sep 17 00:00:00 2001
From: Daniel Golle <daniel@makrotopia.org>
Date: Mon, 17 Nov 2025 02:54:19 +0000
Subject: [PATCH] mtd: spinand: esmt: add support for F50L1G41LC
This adds support for ESMT F50L1G41LC, which appears to be an updated
version of the already supported F50L1G41LB.
Add esmt_8c SPI_NAND manufacturer to account for the newly used vendor
ID with support for the ESMT F50L1G41LC chip.
Link: https://github.com/openwrt/openwrt/pull/15214#issuecomment-3514824435
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
---
drivers/mtd/nand/spi/core.c | 1 +
drivers/mtd/nand/spi/esmt.c | 24 ++++++++++++++++++++++++
include/linux/mtd/spinand.h | 1 +
3 files changed, 26 insertions(+)
--- a/drivers/mtd/nand/spi/core.c
+++ b/drivers/mtd/nand/spi/core.c
@@ -1114,6 +1114,7 @@ static const struct nand_ops spinand_ops
static const struct spinand_manufacturer *spinand_manufacturers[] = {
&alliancememory_spinand_manufacturer,
&ato_spinand_manufacturer,
+ &esmt_8c_spinand_manufacturer,
&esmt_c8_spinand_manufacturer,
&fmsh_spinand_manufacturer,
&foresee_spinand_manufacturer,
--- a/drivers/mtd/nand/spi/esmt.c
+++ b/drivers/mtd/nand/spi/esmt.c
@@ -11,6 +11,7 @@
/* ESMT uses GigaDevice 0xc8 JECDEC ID on some SPI NANDs */
#define SPINAND_MFR_ESMT_C8 0xc8
+#define SPINAND_MFR_ESMT_8C 0x8c
static SPINAND_OP_VARIANTS(read_cache_variants,
SPINAND_PAGE_READ_FROM_CACHE_X4_OP(0, 1, NULL, 0),
@@ -102,6 +103,19 @@ static const struct mtd_ooblayout_ops f5
.free = f50l1g41lb_ooblayout_free,
};
+
+static const struct spinand_info esmt_8c_spinand_table[] = {
+ SPINAND_INFO("F50L1G41LC",
+ SPINAND_ID(SPINAND_READID_METHOD_OPCODE_ADDR, 0x2C),
+ 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(&f50l1g41lb_ooblayout, NULL)),
+};
+
static const struct spinand_info esmt_c8_spinand_table[] = {
SPINAND_INFO("F50L1G41LB",
SPINAND_ID(SPINAND_READID_METHOD_OPCODE_ADDR, 0x01, 0x7f,
@@ -138,6 +152,14 @@ static const struct spinand_info esmt_c8
static const struct spinand_manufacturer_ops esmt_spinand_manuf_ops = {
};
+const struct spinand_manufacturer esmt_8c_spinand_manufacturer = {
+ .id = SPINAND_MFR_ESMT_8C,
+ .name = "ESMT",
+ .chips = esmt_8c_spinand_table,
+ .nchips = ARRAY_SIZE(esmt_8c_spinand_table),
+ .ops = &esmt_spinand_manuf_ops,
+};
+
const struct spinand_manufacturer esmt_c8_spinand_manufacturer = {
.id = SPINAND_MFR_ESMT_C8,
.name = "ESMT",
--- a/include/linux/mtd/spinand.h
+++ b/include/linux/mtd/spinand.h
@@ -262,6 +262,7 @@ struct spinand_manufacturer {
/* SPI NAND manufacturers */
extern const struct spinand_manufacturer alliancememory_spinand_manufacturer;
extern const struct spinand_manufacturer ato_spinand_manufacturer;
+extern const struct spinand_manufacturer esmt_8c_spinand_manufacturer;
extern const struct spinand_manufacturer esmt_c8_spinand_manufacturer;
extern const struct spinand_manufacturer fmsh_spinand_manufacturer;
extern const struct spinand_manufacturer foresee_spinand_manufacturer;

8
target/linux/generic/pending-6.12/487-mtd-spinand-Add-support-for-Etron-EM73D044VCx.patch
View file

@ -49,9 +49,9 @@ Submitted-by: Daniel Danzberger <daniel@dd-wrt.com>
obj-$(CONFIG_MTD_SPI_NAND) += spinand.o
--- a/drivers/mtd/nand/spi/core.c
+++ b/drivers/mtd/nand/spi/core.c
@@ -1159,6 +1159,7 @@ static const struct spinand_manufacturer
&alliancememory_spinand_manufacturer,
@@ -1160,6 +1160,7 @@ static const struct spinand_manufacturer
&ato_spinand_manufacturer,
&esmt_8c_spinand_manufacturer,
&esmt_c8_spinand_manufacturer,
+ &etron_spinand_manufacturer,
&fmsh_spinand_manufacturer,
@ -160,9 +160,9 @@ Submitted-by: Daniel Danzberger <daniel@dd-wrt.com>
+};
--- 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;
@@ -264,6 +264,7 @@ extern const struct spinand_manufacturer
extern const struct spinand_manufacturer ato_spinand_manufacturer;
extern const struct spinand_manufacturer esmt_8c_spinand_manufacturer;
extern const struct spinand_manufacturer esmt_c8_spinand_manufacturer;
+extern const struct spinand_manufacturer etron_spinand_manufacturer;
extern const struct spinand_manufacturer fmsh_spinand_manufacturer;

6
target/linux/mediatek/patches-6.12/330-snand-mtk-bmt-support.patch
View file

@ -8,7 +8,7 @@
static int spinand_read_reg_op(struct spinand_device *spinand, u8 reg, u8 *val)
{
@@ -1574,6 +1575,7 @@ static int spinand_probe(struct spi_mem
@@ -1575,6 +1576,7 @@ static int spinand_probe(struct spi_mem
if (ret)
return ret;
@ -16,7 +16,7 @@
ret = mtd_device_register(mtd, NULL, 0);
if (ret)
goto err_spinand_cleanup;
@@ -1581,6 +1583,7 @@ static int spinand_probe(struct spi_mem
@@ -1582,6 +1584,7 @@ static int spinand_probe(struct spi_mem
return 0;
err_spinand_cleanup:
@ -24,7 +24,7 @@
spinand_cleanup(spinand);
return ret;
@@ -1599,6 +1602,7 @@ static int spinand_remove(struct spi_mem
@@ -1600,6 +1603,7 @@ static int spinand_remove(struct spi_mem
if (ret)
return ret;

4
target/linux/mediatek/patches-6.12/340-mtd-spinand-Add-support-for-the-Fidelix-FM35X1GA.patch
View file

@ -24,7 +24,7 @@ Signed-off-by: Davide Fioravanti <pantanastyle@gmail.com>
obj-$(CONFIG_MTD_SPI_NAND) += spinand.o
--- a/drivers/mtd/nand/spi/core.c
+++ b/drivers/mtd/nand/spi/core.c
@@ -1162,6 +1162,7 @@ static const struct spinand_manufacturer
@@ -1163,6 +1163,7 @@ static const struct spinand_manufacturer
&esmt_c8_spinand_manufacturer,
&etron_spinand_manufacturer,
&fmsh_spinand_manufacturer,
@ -113,7 +113,7 @@ Signed-off-by: Davide Fioravanti <pantanastyle@gmail.com>
+};
--- a/include/linux/mtd/spinand.h
+++ b/include/linux/mtd/spinand.h
@@ -265,6 +265,7 @@ extern const struct spinand_manufacturer
@@ -266,6 +266,7 @@ extern const struct spinand_manufacturer
extern const struct spinand_manufacturer esmt_c8_spinand_manufacturer;
extern const struct spinand_manufacturer etron_spinand_manufacturer;
extern const struct spinand_manufacturer fmsh_spinand_manufacturer;

4
target/linux/mediatek/patches-6.12/435-drivers-mtd-spinand-Add-calibration-support-for-spin.patch
View file

@ -11,7 +11,7 @@ Signed-off-by: SkyLake.Huang <skylake.huang@mediatek.com>
--- a/drivers/mtd/nand/spi/core.c
+++ b/drivers/mtd/nand/spi/core.c
@@ -1200,6 +1200,56 @@ static int spinand_manufacturer_match(st
@@ -1201,6 +1201,56 @@ static int spinand_manufacturer_match(st
return -EOPNOTSUPP;
}
@ -68,7 +68,7 @@ Signed-off-by: SkyLake.Huang <skylake.huang@mediatek.com>
static int spinand_id_detect(struct spinand_device *spinand)
{
u8 *id = spinand->id.data;
@@ -1451,6 +1501,10 @@ static int spinand_init(struct spinand_d
@@ -1452,6 +1502,10 @@ static int spinand_init(struct spinand_d
if (!spinand->scratchbuf)
return -ENOMEM;

2
target/linux/mediatek/patches-6.12/436-drivers-mtd-spi-nor-Add-calibration-support-for-spi-.patch
View file

@ -12,7 +12,7 @@ Signed-off-by: SkyLake.Huang <skylake.huang@mediatek.com>
--- a/drivers/mtd/nand/spi/core.c
+++ b/drivers/mtd/nand/spi/core.c
@@ -1241,7 +1241,10 @@ static int spinand_cal_read(void *priv,
@@ -1242,7 +1242,10 @@ static int spinand_cal_read(void *priv,
if (ret)
return ret;

2
target/linux/mediatek/patches-6.12/863-arm64-dts-mt7986-add-sound-wm8960.patch
View file

@ -46,7 +46,7 @@ Subject: [PATCH] arm64: dts: mt7986: add sound wm8960
};
&spi0 {
@@ -50,3 +80,13 @@
@@ -48,3 +78,13 @@
&wifi {
mediatek,mtd-eeprom = <&factory 0>;
};

4
target/linux/mediatek/patches-6.12/960-asus-hack-u-boot-ignore-mtdparts.patch
View file

@ -29,7 +29,7 @@ Signed-off-by: Daniel Golle <daniel@makrotopia.org>
--- a/drivers/mtd/nand/spi/core.c
+++ b/drivers/mtd/nand/spi/core.c
@@ -1668,6 +1668,7 @@ static int spinand_remove(struct spi_mem
@@ -1669,6 +1669,7 @@ static int spinand_remove(struct spi_mem
static const struct spi_device_id spinand_ids[] = {
{ .name = "spi-nand" },
@ -37,7 +37,7 @@ Signed-off-by: Daniel Golle <daniel@makrotopia.org>
{ /* sentinel */ },
};
MODULE_DEVICE_TABLE(spi, spinand_ids);
@@ -1675,6 +1676,7 @@ MODULE_DEVICE_TABLE(spi, spinand_ids);
@@ -1676,6 +1677,7 @@ MODULE_DEVICE_TABLE(spi, spinand_ids);
#ifdef CONFIG_OF
static const struct of_device_id spinand_of_ids[] = {
{ .compatible = "spi-nand" },

2
target/linux/qualcommax/patches-6.12/0055-v6.16-mtd-spinand-esmt-fix-id-code-for-F50D1G41LB.patch
View file

@ -24,7 +24,7 @@ Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
--- a/drivers/mtd/nand/spi/esmt.c
+++ b/drivers/mtd/nand/spi/esmt.c
@@ -115,7 +115,7 @@ static const struct spinand_info esmt_c8
@@ -129,7 +129,7 @@ static const struct spinand_info esmt_c8
SPINAND_ECCINFO(&f50l1g41lb_ooblayout, NULL)),
SPINAND_INFO("F50D1G41LB",
SPINAND_ID(SPINAND_READID_METHOD_OPCODE_ADDR, 0x11, 0x7f,