Following linux kernel to check address width and 4byte flag to enable 4byte opcode setting.
Signed-off-by: JaimeLiao jaimeliao.tw@gmail.com --- drivers/mtd/spi/spi-nor-core.c | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/drivers/mtd/spi/spi-nor-core.c b/drivers/mtd/spi/spi-nor-core.c index 707eb9c1d2..069c6f4630 100644 --- a/drivers/mtd/spi/spi-nor-core.c +++ b/drivers/mtd/spi/spi-nor-core.c @@ -3927,6 +3927,10 @@ int spi_nor_scan(struct spi_nor *nor) return -EINVAL; }
+ /* Set 4byte opcodes when possible. */ + if (nor->addr_width == 4 && info->flags & SPI_NOR_4B_OPCODES) + spi_nor_set_4byte_opcodes(nor, info); + /* Send all the required SPI flash commands to initialize device */ ret = spi_nor_init(nor); if (ret)