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authorZhi-Jun You <hujy652@gmail.com>2024-01-07 17:41:20 +0300
committerMiquel Raynal <miquel.raynal@bootlin.com>2024-02-05 16:22:16 +0300
commite0ccf861b80698a5cc6f97c89bf8d5761f465fce (patch)
tree8227f93d4a13714c3e0245469651290087deefb5 /drivers/mtd
parent6613476e225e090cc9aad49be7fa504e290dd33d (diff)
downloadlinux-e0ccf861b80698a5cc6f97c89bf8d5761f465fce.tar.xz
mtd: spinand: winbond: add support for W25N04KV
Add support for W25N04KV. W25N04KV has 8-bit on-die ECC. Signed-off-by: Zhi-Jun You <hujy652@gmail.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Link: https://lore.kernel.org/linux-mtd/20240107144120.532-1-hujy652@gmail.com
Diffstat (limited to 'drivers/mtd')
-rw-r--r--drivers/mtd/nand/spi/winbond.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/mtd/nand/spi/winbond.c b/drivers/mtd/nand/spi/winbond.c
index 1a473021cca5..ba7c813b9542 100644
--- a/drivers/mtd/nand/spi/winbond.c
+++ b/drivers/mtd/nand/spi/winbond.c
@@ -15,6 +15,8 @@
#define WINBOND_CFG_BUF_READ BIT(3)
+#define W25N04KV_STATUS_ECC_5_8_BITFLIPS (3 << 4)
+
static SPINAND_OP_VARIANTS(read_cache_variants,
SPINAND_PAGE_READ_FROM_CACHE_QUADIO_OP(0, 2, NULL, 0),
SPINAND_PAGE_READ_FROM_CACHE_X4_OP(0, 1, NULL, 0),
@@ -118,6 +120,7 @@ static int w25n02kv_ecc_get_status(struct spinand_device *spinand,
return -EBADMSG;
case STATUS_ECC_HAS_BITFLIPS:
+ case W25N04KV_STATUS_ECC_5_8_BITFLIPS:
/*
* Let's try to retrieve the real maximum number of bitflips
* in order to avoid forcing the wear-leveling layer to move
@@ -214,6 +217,15 @@ static const struct spinand_info winbond_spinand_table[] = {
&update_cache_variants),
0,
SPINAND_ECCINFO(&w25m02gv_ooblayout, w25n02kv_ecc_get_status)),
+ SPINAND_INFO("W25N04KV",
+ SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0xaa, 0x23),
+ NAND_MEMORG(1, 2048, 128, 64, 4096, 40, 2, 1, 1),
+ NAND_ECCREQ(8, 512),
+ SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
+ &write_cache_variants,
+ &update_cache_variants),
+ 0,
+ SPINAND_ECCINFO(&w25n02kv_ooblayout, w25n02kv_ecc_get_status)),
};
static int winbond_spinand_init(struct spinand_device *spinand)