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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2025-09-19 17:37:39 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2025-09-19 17:37:39 +0300
commit362f34fba309536598a02bc0541ccaeae2bc9052 (patch)
tree909959d943cf9f3afe80ba67333359828660e27c /drivers/mtd/nand/spi/winbond.c
parente4c42304a8cd3b7d0b9755e80dd6835c20b8e0dc (diff)
parent62dae019823123ce3baa50e680219e2beb9a63a5 (diff)
downloadlinux-rolling-stable.tar.xz
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/mtd/nand/spi/winbond.c')
-rw-r--r--drivers/mtd/nand/spi/winbond.c80
1 files changed, 78 insertions, 2 deletions
diff --git a/drivers/mtd/nand/spi/winbond.c b/drivers/mtd/nand/spi/winbond.c
index b7a28f001a38..116ac17591a8 100644
--- a/drivers/mtd/nand/spi/winbond.c
+++ b/drivers/mtd/nand/spi/winbond.c
@@ -18,6 +18,9 @@
#define W25N04KV_STATUS_ECC_5_8_BITFLIPS (3 << 4)
+#define W25N0XJW_SR4 0xD0
+#define W25N0XJW_SR4_HS BIT(2)
+
/*
* "X2" in the core is equivalent to "dual output" in the datasheets,
* "X4" in the core is equivalent to "quad output" in the datasheets.
@@ -42,10 +45,12 @@ static SPINAND_OP_VARIANTS(update_cache_octal_variants,
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),
+ SPINAND_PAGE_READ_FROM_CACHE_1S_4S_4S_OP(0, 4, NULL, 0, 0),
SPINAND_PAGE_READ_FROM_CACHE_1S_4S_4S_OP(0, 2, NULL, 0, 104 * HZ_PER_MHZ),
SPINAND_PAGE_READ_FROM_CACHE_1S_1S_4S_OP(0, 1, NULL, 0),
SPINAND_PAGE_READ_FROM_CACHE_1S_2D_2D_OP(0, 4, NULL, 0, 80 * HZ_PER_MHZ),
SPINAND_PAGE_READ_FROM_CACHE_1S_1D_2D_OP(0, 2, NULL, 0, 80 * HZ_PER_MHZ),
+ SPINAND_PAGE_READ_FROM_CACHE_1S_2S_2S_OP(0, 2, NULL, 0, 0),
SPINAND_PAGE_READ_FROM_CACHE_1S_2S_2S_OP(0, 1, NULL, 0, 104 * HZ_PER_MHZ),
SPINAND_PAGE_READ_FROM_CACHE_1S_1S_2S_OP(0, 1, NULL, 0),
SPINAND_PAGE_READ_FROM_CACHE_1S_1D_1D_OP(0, 2, NULL, 0, 80 * HZ_PER_MHZ),
@@ -157,6 +162,36 @@ static const struct mtd_ooblayout_ops w25n02kv_ooblayout = {
.free = w25n02kv_ooblayout_free,
};
+static int w25n01jw_ooblayout_ecc(struct mtd_info *mtd, int section,
+ struct mtd_oob_region *region)
+{
+ if (section > 3)
+ return -ERANGE;
+
+ region->offset = (16 * section) + 12;
+ region->length = 4;
+
+ return 0;
+}
+
+static int w25n01jw_ooblayout_free(struct mtd_info *mtd, int section,
+ struct mtd_oob_region *region)
+{
+ if (section > 3)
+ return -ERANGE;
+
+ region->offset = (16 * section);
+ region->length = 12;
+
+ /* Extract BBM */
+ if (!section) {
+ region->offset += 2;
+ region->length -= 2;
+ }
+
+ return 0;
+}
+
static int w35n01jw_ooblayout_ecc(struct mtd_info *mtd, int section,
struct mtd_oob_region *region)
{
@@ -187,6 +222,11 @@ static int w35n01jw_ooblayout_free(struct mtd_info *mtd, int section,
return 0;
}
+static const struct mtd_ooblayout_ops w25n01jw_ooblayout = {
+ .ecc = w25n01jw_ooblayout_ecc,
+ .free = w25n01jw_ooblayout_free,
+};
+
static const struct mtd_ooblayout_ops w35n01jw_ooblayout = {
.ecc = w35n01jw_ooblayout_ecc,
.free = w35n01jw_ooblayout_free,
@@ -230,6 +270,40 @@ static int w25n02kv_ecc_get_status(struct spinand_device *spinand,
return -EINVAL;
}
+static int w25n0xjw_hs_cfg(struct spinand_device *spinand)
+{
+ const struct spi_mem_op *op;
+ bool hs;
+ u8 sr4;
+ int ret;
+
+ op = spinand->op_templates.read_cache;
+ if (op->cmd.dtr || op->addr.dtr || op->dummy.dtr || op->data.dtr)
+ hs = false;
+ else if (op->cmd.buswidth == 1 && op->addr.buswidth == 1 &&
+ op->dummy.buswidth == 1 && op->data.buswidth == 1)
+ hs = false;
+ else if (!op->max_freq)
+ hs = true;
+ else
+ hs = false;
+
+ ret = spinand_read_reg_op(spinand, W25N0XJW_SR4, &sr4);
+ if (ret)
+ return ret;
+
+ if (hs)
+ sr4 |= W25N0XJW_SR4_HS;
+ else
+ sr4 &= ~W25N0XJW_SR4_HS;
+
+ ret = spinand_write_reg_op(spinand, W25N0XJW_SR4, sr4);
+ if (ret)
+ return ret;
+
+ return 0;
+}
+
static const struct spinand_info winbond_spinand_table[] = {
/* 512M-bit densities */
SPINAND_INFO("W25N512GW", /* 1.8V */
@@ -268,7 +342,8 @@ static const struct spinand_info winbond_spinand_table[] = {
&write_cache_variants,
&update_cache_variants),
0,
- SPINAND_ECCINFO(&w25m02gv_ooblayout, NULL)),
+ SPINAND_ECCINFO(&w25n01jw_ooblayout, NULL),
+ SPINAND_CONFIGURE_CHIP(w25n0xjw_hs_cfg)),
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),
@@ -324,7 +399,8 @@ static const struct spinand_info winbond_spinand_table[] = {
&write_cache_variants,
&update_cache_variants),
0,
- SPINAND_ECCINFO(&w25m02gv_ooblayout, NULL)),
+ SPINAND_ECCINFO(&w25m02gv_ooblayout, NULL),
+ SPINAND_CONFIGURE_CHIP(w25n0xjw_hs_cfg)),
SPINAND_INFO("W25N02KV", /* 3.3V */
SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0xaa, 0x22),
NAND_MEMORG(1, 2048, 128, 64, 2048, 40, 1, 1, 1),