mtd: spi-nor: winbond: w25q256jvm: Init flash based on SFDP

Get rid of the static initialization of the flash parameters and
init them when parsing SFDP.
Generated a 256 Kbyte random data and did an erase, write, read back
and compare test. The flash uses for reads SPINOR_OP_READ_1_4_4 0xeb,
for erases SPINOR_OP_BE_4K 0x20, and for writes SPINOR_OP_PP 0x02.

Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Link: https://lore.kernel.org/r/20211207140254.87681-12-tudor.ambarus@microchip.com

diff --git a/drivers/mtd/spi-nor/winbond.c b/drivers/mtd/spi-nor/winbond.c
index 4215094..a7573df 100644 (file)
--- a/drivers/mtd/spi-nor/winbond.c
+++ b/drivers/mtd/spi-nor/winbond.c
@@ -117,8 +117,7 @@ static const struct flash_info winbond_parts[] = {
                NO_SFDP_FLAGS(SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ)
                .fixups = &w25q256_fixups },
        { "w25q256jvm", INFO(0xef7019, 0, 64 * 1024, 512)
-               NO_SFDP_FLAGS(SECT_4K | SPI_NOR_DUAL_READ |
-                             SPI_NOR_QUAD_READ) },
+               PARSE_SFDP },
        { "w25q256jw", INFO(0xef6019, 0, 64 * 1024, 512)
                NO_SFDP_FLAGS(SECT_4K | SPI_NOR_DUAL_READ |
                              SPI_NOR_QUAD_READ) },