spi: spi_flash: Don't read bank address register in 4-byte mode

There is no need to read bank address register when working
in 4-byte mode and hence bypass it.

Signed-off-by: Siva Durga Prasad Paladugu <siva.durga.paladugu@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>

diff --git a/drivers/mtd/spi/spi_flash.c b/drivers/mtd/spi/spi_flash.c
index 15d91a7f7e60e07eb5ff32552420ba828e056488..8e79a4a125a78876ab5e363e82702b59023cb54a 100644 (file)
--- a/drivers/mtd/spi/spi_flash.c
+++ b/drivers/mtd/spi/spi_flash.c
@@ -1566,9 +1566,11 @@ int spi_flash_scan(struct spi_flash *flash)
 
        /* Configure the BAR - discover bank cmds and read current bank */
 #ifdef CONFIG_SPI_FLASH_BAR
-       ret = read_bar(flash, info);
-       if (ret < 0)
-               return ret;
+       if (flash->spi->bytemode != SPI_4BYTE_MODE) {
+               ret = read_bar(flash, info);
+               if (ret < 0)
+                       return ret;
+       }
 #endif
 
 #if CONFIG_IS_ENABLED(OF_CONTROL) && !CONFIG_IS_ENABLED(OF_PLATDATA)