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W25N01KV

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This commit is contained in:
刘可亮 2026-02-26 10:53:23 +08:00
parent 97fb26097e
commit 435759b7fa
2 changed files with 50 additions and 0 deletions
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24
source/linux-5.10/drivers/mtd/nand/spi/winbond.c
View File

@ -15,6 +15,7 @@
#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),
@ -74,6 +75,15 @@ static int w25m02gv_select_target(struct spinand_device *spinand,
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 +108,10 @@ static int w25n02kv_ooblayout_free(struct mtd_info *mtd, int section,
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,
@ -118,6 +132,7 @@ 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
@ -169,6 +184,15 @@ static const struct spinand_info winbond_spinand_table[] = {
&update_cache_variants),
0,
SPINAND_ECCINFO(&w25m02gv_ooblayout, NULL)),
SPINAND_INFO("W25N01KV", /* 3.3V */
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),

26
source/uboot-2021.10/drivers/mtd/nand/spi/winbond.c
View File

@ -110,6 +110,23 @@ static const struct mtd_ooblayout_ops w25n02kv_ooblayout = {
.rfree = w25n02kv_ooblayout_free,
};
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 const struct mtd_ooblayout_ops w25n01kv_ooblayout = {
.ecc = w25n01kv_ooblayout_ecc,
.rfree = w25n02kv_ooblayout_free,
};
static int w25n02kv_ecc_get_status(struct spinand_device *spinand,
u8 status)
{
@ -195,6 +212,15 @@ static const struct spinand_info winbond_spinand_table[] = {
&update_cache_variants),
SPINAND_HAS_CONT_READ_BIT,
SPINAND_ECCINFO(&w25m02gv_ooblayout, NULL)),
SPINAND_INFO("W25N01KV",
SPINAND_ID(0xAE, 0x21),
NAND_MEMORG(1, 2048, 96, 64, 1024, 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)),
};
/**