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generic: 5.15: add Winbond W25N01KV support

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It seems that some Xiaomi AX3000T boards changed to using Winbond W25N01KV
SPI-NAND which is not supported in OpenWrt 23.05 but only in main.

So, backport the support for Winbond W25N01KV from Linux 6.12 to 23.05
as well.

Link: https://github.com/openwrt/openwrt/pull/16669
Signed-off-by: Robert Marko <robimarko@gmail.com>
This commit is contained in:
Robert Marko 2024-10-11 23:27:19 +02:00
parent 676e2f7192
commit e0e022e612
1 changed files with 65 additions and 0 deletions
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65
target/linux/generic/backport-5.15/893-v6.12-mtd-spinand-winbond-add-support-for-W25N01KV.patch Normal file
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@ -0,0 +1,65 @@
From e2a9fcb36e851adb5b25c4acea53a290fd48a636 Mon Sep 17 00:00:00 2001
From: Robert Marko <robimarko@gmail.com>
Date: Mon, 5 Aug 2024 19:51:02 +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 <robimarko@gmail.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20240805175125.6658-1-robimarko@gmail.com
---
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),