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 <[email protected]>

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 (file)
index 0000000..eb11afa
--- /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;
+