mtd: spinand: winbond: add support for W25N01KV

Add support for Winbond W25N01KV 1Gbit SPI-NAND.

It has 4-bit on-die ECC.

Signed-off-by: Robert Marko <robimarko@gmail.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20240805175125.6658-1-robimarko@gmail.com

diff --git a/drivers/mtd/nand/spi/winbond.c b/drivers/mtd/nand/spi/winbond.c
index ba7c813b9542bc9f7551bde9289b8a5b4a59fb47..f3bb81d7e460453fdb2aa5e01348f813c7965462 100644 (file)
--- a/drivers/mtd/nand/spi/winbond.c
+++ b/drivers/mtd/nand/spi/winbond.c
@@ -76,6 +76,18 @@ 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)
 {
@@ -100,6 +112,11 @@ 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,
@@ -163,6 +180,15 @@ static const struct spinand_info winbond_spinand_table[] = {
                                              &update_cache_variants),
                     0,
                     SPINAND_ECCINFO(&w25m02gv_ooblayout, NULL)),
+       SPINAND_INFO("W25N01KV",
+                    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),