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mtd: spinand: winbond: add Winbond W25N04KV flash support

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Add Winbond W25N04KV flash support that use a different value to detect
ECC bitflip.

Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
This commit is contained in:
Christian Marangi 2025-06-07 23:11:21 +02:00 committed by Tom Rini
parent 01cc7046ad
commit fe37fb8214
1 changed files with 13 additions and 0 deletions
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13
drivers/mtd/nand/spi/winbond.c
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@ -11,6 +11,7 @@
#include <linux/device.h> #include <linux/device.h>
#include <linux/kernel.h> #include <linux/kernel.h>
#endif #endif
#include <linux/bitfield.h>
#include <linux/bug.h> #include <linux/bug.h>
#include <linux/mtd/spinand.h> #include <linux/mtd/spinand.h>
@ -18,6 +19,8 @@
#define WINBOND_CFG_BUF_READ BIT(3) #define WINBOND_CFG_BUF_READ BIT(3)
#define W25N04KV_STATUS_ECC_5_8_BITFLIPS FIELD_PREP_CONST(STATUS_ECC_MASK, 0x3)
static SPINAND_OP_VARIANTS(read_cache_variants, static SPINAND_OP_VARIANTS(read_cache_variants,
SPINAND_PAGE_READ_FROM_CACHE_QUADIO_OP(0, 2, NULL, 0), SPINAND_PAGE_READ_FROM_CACHE_QUADIO_OP(0, 2, NULL, 0),
SPINAND_PAGE_READ_FROM_CACHE_X4_OP(0, 1, NULL, 0), SPINAND_PAGE_READ_FROM_CACHE_X4_OP(0, 1, NULL, 0),
@ -121,6 +124,7 @@ static int w25n02kv_ecc_get_status(struct spinand_device *spinand,
return -EBADMSG; return -EBADMSG;
case STATUS_ECC_HAS_BITFLIPS: case STATUS_ECC_HAS_BITFLIPS:
case W25N04KV_STATUS_ECC_5_8_BITFLIPS:
/* /*
* Let's try to retrieve the real maximum number of bitflips * Let's try to retrieve the real maximum number of bitflips
* in order to avoid forcing the wear-leveling layer to move * in order to avoid forcing the wear-leveling layer to move
@ -172,6 +176,15 @@ static const struct spinand_info winbond_spinand_table[] = {
&update_cache_variants), &update_cache_variants),
0, 0,
SPINAND_ECCINFO(&w25n02kv_ooblayout, w25n02kv_ecc_get_status)), SPINAND_ECCINFO(&w25n02kv_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) static int winbond_spinand_init(struct spinand_device *spinand)