[PATCH 20/21] mtd: spinand: winbond: Add octal program support

[Miquel Raynal]

Describe the octal read from cache operations (1S_1S_8S and 1S_8S_8S)
supported by the W35N01JW chip.

flash_speed test results ran on the TI AM62A7 LP SK using a 25MHz SPI bus:

* Single mode:
eraseblock write speed is 2028 KiB/s
page       write speed is 2028 KiB/s

* Octal modes:
eraseblock write speed is 7335 KiB/s
page       write speed is 7293 KiB/s

However, testing on the cadence qspi controller driver did not allow
easy "update cache" tests so these macros are untested and given as-is.

Signed-off-by: Miquel Raynal <miquel.raynal@xxxxxxxxxxx>
---
 drivers/mtd/nand/spi/winbond.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/mtd/nand/spi/winbond.c b/drivers/mtd/nand/spi/winbond.c
index 4b1bfc15588ad3ffc8f2cb7615db6c14d0b62903..c263c9b5affe79a14466bc0e2ef2da53ecfd48cf 100644
--- a/drivers/mtd/nand/spi/winbond.c
+++ b/drivers/mtd/nand/spi/winbond.c
@@ -31,9 +31,12 @@ static SPINAND_OP_VARIANTS(read_cache_octal_variants,
 		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_8S_8S_OP(true, 0, NULL, 0),
+		SPINAND_PROG_LOAD_1S_1S_8S_OP(0, NULL, 0),
 		SPINAND_PROG_LOAD_1S_1S_1S_OP(true, 0, NULL, 0));
 
 static SPINAND_OP_VARIANTS(update_cache_octal_variants,
+		SPINAND_PROG_LOAD_1S_8S_8S_OP(false, 0, NULL, 0),
 		SPINAND_PROG_LOAD_1S_1S_1S_OP(false, 0, NULL, 0));
 
 static SPINAND_OP_VARIANTS(read_cache_dual_quad_dtr_variants,

-- 
2.48.1