From 8be78d6cfd82b55adb1cb19f13ee56c903d58a54 Mon Sep 17 00:00:00 2001 From: Robert Marko Date: Mon, 29 Jul 2024 14:40:46 +0200 Subject: [PATCH] generic: 6.6: add Winbond W25N01KV support It seems that some Xiaomi AX3000T boards changed to using Winbond W25N01KV SPI-NAND which is not supported in OpenWrt nor upstream kernel. So, add a pending patch to support it as upstream supports rest of the KV revision models. Fixes: #16002 Link: https://github.com/openwrt/openwrt/pull/16088 Signed-off-by: Robert Marko --- ...and-winbond-add-support-for-W25N01KV.patch | 63 +++++++++++++++++++ 1 file changed, 63 insertions(+) create mode 100644 target/linux/generic/pending-6.6/489-mtd-spinand-winbond-add-support-for-W25N01KV.patch diff --git a/target/linux/generic/pending-6.6/489-mtd-spinand-winbond-add-support-for-W25N01KV.patch b/target/linux/generic/pending-6.6/489-mtd-spinand-winbond-add-support-for-W25N01KV.patch new file mode 100644 index 00000000000000..78498af1ce0db0 --- /dev/null +++ b/target/linux/generic/pending-6.6/489-mtd-spinand-winbond-add-support-for-W25N01KV.patch @@ -0,0 +1,63 @@ +From 446daf20b0a6790751459cdde0ff9fc8813e54d1 Mon Sep 17 00:00:00 2001 +From: Robert Marko +Date: Mon, 29 Jul 2024 14:09:16 +0200 +Subject: [PATCH] mtd: spinand: winbond: add support for W25N01KV + +Add support for Winbond W25N01KV 1Gbit SPI-NAND. + +It has 4-bit on-die ECC. + +Signed-off-by: Robert Marko +--- + drivers/mtd/nand/spi/winbond.c | 26 ++++++++++++++++++++++++++ + 1 file changed, 26 insertions(+) + +--- a/drivers/mtd/nand/spi/winbond.c ++++ b/drivers/mtd/nand/spi/winbond.c +@@ -74,6 +74,18 @@ static int w25m02gv_select_target(struct + return spi_mem_exec_op(spinand->spimem, &op); + } + ++static int w25n01kv_ooblayout_ecc(struct mtd_info *mtd, int section, ++ struct mtd_oob_region *region) ++{ ++ if (section > 3) ++ return -ERANGE; ++ ++ region->offset = 64 + (8 * section); ++ region->length = 7; ++ ++ return 0; ++} ++ + static int w25n02kv_ooblayout_ecc(struct mtd_info *mtd, int section, + struct mtd_oob_region *region) + { +@@ -98,6 +110,11 @@ static int w25n02kv_ooblayout_free(struc + return 0; + } + ++static const struct mtd_ooblayout_ops w25n01kv_ooblayout = { ++ .ecc = w25n01kv_ooblayout_ecc, ++ .free = w25n02kv_ooblayout_free, ++}; ++ + static const struct mtd_ooblayout_ops w25n02kv_ooblayout = { + .ecc = w25n02kv_ooblayout_ecc, + .free = w25n02kv_ooblayout_free, +@@ -160,6 +177,15 @@ 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, 96, 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(&w25n01kv_ooblayout, w25n02kv_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),