From: Hauke Mehrtens <hauke@hauke-m.de>
Date: Thu, 27 Nov 2025 21:27:55 +0000 (+0100)
Subject: uboot-mediatek: mtd: spinand: esmt: add support for F50L1G41LC
X-Git-Url: http://git.openwrt.org/?a=commitdiff_plain;h=c84025dea29602d149d22a86502d784f292441fe;p=openwrt%2Fstaging%2Fstintel.git

uboot-mediatek: mtd: spinand: esmt: add support for F50L1G41LC

Add support for esmt F50L1G41LC flash chip. It is used in some recent
Cudy devices.

Link: https://github.com/openwrt/openwrt/pull/20962
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
---

diff --git a/package/boot/uboot-mediatek/patches/102-mtd-spinand-esmt-add-support-for-F50L1G41LC.patch b/package/boot/uboot-mediatek/patches/102-mtd-spinand-esmt-add-support-for-F50L1G41LC.patch
new file mode 100644
index 0000000000..eb11afa2b5
--- /dev/null
+++ b/package/boot/uboot-mediatek/patches/102-mtd-spinand-esmt-add-support-for-F50L1G41LC.patch
@@ -0,0 +1,68 @@
+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.
+
+--- a/drivers/mtd/nand/spi/core.c
++++ b/drivers/mtd/nand/spi/core.c
+@@ -895,6 +895,7 @@ static const struct spinand_manufacturer
+ 	&toshiba_spinand_manufacturer,
+ 	&winbond_spinand_manufacturer,
+ 	&esmt_c8_spinand_manufacturer,
++	&esmt_8c_spinand_manufacturer,
+ 	&foresee_spinand_manufacturer,
+ 	&xtx_spinand_manufacturer,
+ };
+--- a/drivers/mtd/nand/spi/esmt.c
++++ b/drivers/mtd/nand/spi/esmt.c
+@@ -13,6 +13,7 @@
+ 
+ /* 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),
+@@ -104,6 +105,18 @@ static const struct mtd_ooblayout_ops f5
+ 	.rfree = 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),
+@@ -135,3 +148,11 @@ const struct spinand_manufacturer esmt_c
+ 	.nchips = ARRAY_SIZE(esmt_c8_spinand_table),
+ 	.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,
++};
+--- a/include/linux/mtd/spinand.h
++++ b/include/linux/mtd/spinand.h
+@@ -306,6 +306,7 @@ extern const struct spinand_manufacturer
+ extern const struct spinand_manufacturer toshiba_spinand_manufacturer;
+ extern const struct spinand_manufacturer winbond_spinand_manufacturer;
+ extern const struct spinand_manufacturer esmt_c8_spinand_manufacturer;
++extern const struct spinand_manufacturer esmt_8c_spinand_manufacturer;
+ extern const struct spinand_manufacturer foresee_spinand_manufacturer;
+ extern const struct spinand_manufacturer xtx_spinand_manufacturer;
+