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81481c805a
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 <robimarko@gmail.com>
64 lines
2.0 KiB
Diff
64 lines
2.0 KiB
Diff
From 446daf20b0a6790751459cdde0ff9fc8813e54d1 Mon Sep 17 00:00:00 2001
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From: Robert Marko <robimarko@gmail.com>
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Date: Mon, 29 Jul 2024 14:09:16 +0200
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Subject: [PATCH] mtd: spinand: winbond: add support for W25N01KV
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Add support for Winbond W25N01KV 1Gbit SPI-NAND.
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It has 4-bit on-die ECC.
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Signed-off-by: Robert Marko <robimarko@gmail.com>
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---
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drivers/mtd/nand/spi/winbond.c | 26 ++++++++++++++++++++++++++
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1 file changed, 26 insertions(+)
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--- a/drivers/mtd/nand/spi/winbond.c
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+++ b/drivers/mtd/nand/spi/winbond.c
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@@ -74,6 +74,18 @@ static int w25m02gv_select_target(struct
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return spi_mem_exec_op(spinand->spimem, &op);
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}
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+static int w25n01kv_ooblayout_ecc(struct mtd_info *mtd, int section,
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+ struct mtd_oob_region *region)
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+{
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+ if (section > 3)
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+ return -ERANGE;
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+
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+ region->offset = 64 + (8 * section);
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+ region->length = 7;
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+
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+ return 0;
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+}
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+
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static int w25n02kv_ooblayout_ecc(struct mtd_info *mtd, int section,
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struct mtd_oob_region *region)
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{
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@@ -98,6 +110,11 @@ static int w25n02kv_ooblayout_free(struc
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return 0;
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}
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+static const struct mtd_ooblayout_ops w25n01kv_ooblayout = {
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+ .ecc = w25n01kv_ooblayout_ecc,
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+ .free = w25n02kv_ooblayout_free,
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+};
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+
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static const struct mtd_ooblayout_ops w25n02kv_ooblayout = {
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.ecc = w25n02kv_ooblayout_ecc,
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.free = w25n02kv_ooblayout_free,
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@@ -160,6 +177,15 @@ static const struct spinand_info winbond
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&update_cache_variants),
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0,
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SPINAND_ECCINFO(&w25m02gv_ooblayout, NULL)),
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+ SPINAND_INFO("W25N01KV",
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+ SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0xae, 0x21),
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+ NAND_MEMORG(1, 2048, 96, 64, 1024, 20, 1, 1, 1),
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+ NAND_ECCREQ(4, 512),
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+ SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
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+ &write_cache_variants,
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+ &update_cache_variants),
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+ 0,
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+ SPINAND_ECCINFO(&w25n01kv_ooblayout, w25n02kv_ecc_get_status)),
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SPINAND_INFO("W25N02KV",
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SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0xaa, 0x22),
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NAND_MEMORG(1, 2048, 128, 64, 2048, 40, 1, 1, 1),
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