CONFIG_SPL_SERIAL_SUPPORT=y
CONFIG_SPL_SPI_FLASH_SUPPORT=y
CONFIG_SPL_SPI_SUPPORT=y
-CONFIG_SYS_EXTRA_OPTIONS="SAMA5D2,SYS_USE_SERIALFLASH"
+CONFIG_SPI_BOOT=y
CONFIG_BOOTDELAY=3
CONFIG_USE_BOOTARGS=y
CONFIG_BOOTARGS="console=ttyS0,57600 earlyprintk mtdparts=atmel_nand:6M(bootstrap)ro, 6M(kernel)ro,-(rootfs) rootfstype=ubifs ubi.mtd=2 root=ubi0:rootfs"