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mtd: spinand: winbond: Add support for W35N01JW in single mode

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Add support for the W35N series by describing the smaller (single die)
chip. It has 1b/512B ECC support and its own OOB layout.

Acked-by: Tudor Ambarus <tudor.ambarus@linaro.org>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
This commit is contained in:
Miquel Raynal 2025-04-03 11:19:27 +02:00
parent 140bb9e93d
commit 0737c6946c
1 changed files with 54 additions and 0 deletions
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54
drivers/mtd/nand/spi/winbond.c
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@ -23,6 +23,16 @@
* "X4" in the core is equivalent to "quad output" in the datasheets.
*/
static SPINAND_OP_VARIANTS(read_cache_octal_variants,
SPINAND_PAGE_READ_FROM_CACHE_FAST_1S_1S_1S_OP(0, 1, NULL, 0),
SPINAND_PAGE_READ_FROM_CACHE_1S_1S_1S_OP(0, 1, NULL, 0));
static SPINAND_OP_VARIANTS(write_cache_octal_variants,
SPINAND_PROG_LOAD_1S_1S_1S_OP(true, 0, NULL, 0));
static SPINAND_OP_VARIANTS(update_cache_octal_variants,
SPINAND_PROG_LOAD_1S_1S_1S_OP(false, 0, NULL, 0));
static SPINAND_OP_VARIANTS(read_cache_dual_quad_dtr_variants,
SPINAND_PAGE_READ_FROM_CACHE_1S_4D_4D_OP(0, 8, NULL, 0, 80 * HZ_PER_MHZ),
SPINAND_PAGE_READ_FROM_CACHE_1S_1D_4D_OP(0, 2, NULL, 0, 80 * HZ_PER_MHZ),
@ -141,6 +151,41 @@ static const struct mtd_ooblayout_ops w25n02kv_ooblayout = {
.free = w25n02kv_ooblayout_free,
};
static int w35n01jw_ooblayout_ecc(struct mtd_info *mtd, int section,
struct mtd_oob_region *region)
{
if (section > 7)
return -ERANGE;
region->offset = (16 * section) + 12;
region->length = 4;
return 0;
}
static int w35n01jw_ooblayout_free(struct mtd_info *mtd, int section,
struct mtd_oob_region *region)
{
if (section > 7)
return -ERANGE;
region->offset = 16 * section;
region->length = 12;
/* Extract BBM */
if (!section) {
region->offset += 2;
region->length -= 2;
}
return 0;
}
static const struct mtd_ooblayout_ops w35n01jw_ooblayout = {
.ecc = w35n01jw_ooblayout_ecc,
.free = w35n01jw_ooblayout_free,
};
static int w25n02kv_ecc_get_status(struct spinand_device *spinand,
u8 status)
{
@ -227,6 +272,15 @@ static const struct spinand_info winbond_spinand_table[] = {
&update_cache_variants),
0,
SPINAND_ECCINFO(&w25n01kv_ooblayout, w25n02kv_ecc_get_status)),
SPINAND_INFO("W35N01JW", /* 1.8V */
SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0xdc, 0x21),
NAND_MEMORG(1, 4096, 128, 64, 512, 10, 1, 1, 1),
NAND_ECCREQ(1, 512),
SPINAND_INFO_OP_VARIANTS(&read_cache_octal_variants,
&write_cache_octal_variants,
&update_cache_octal_variants),
0,
SPINAND_ECCINFO(&w35n01jw_ooblayout, NULL)),
/* 2G-bit densities */
SPINAND_INFO("W25M02GV", /* 2x1G-bit 3.3V */
SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0xab, 0x21),