1CONFIG_ARM=y 2CONFIG_ARCH_AT91=y 3CONFIG_TARGET_SAMA5D2_PTC=y 4CONFIG_SYS_EXTRA_OPTIONS="SAMA5D2,SYS_USE_NANDFLASH" 5CONFIG_BOOTDELAY=3 6CONFIG_SPL=y 7# CONFIG_CMD_IMI is not set 8# CONFIG_CMD_IMLS is not set 9# CONFIG_CMD_LOADS is not set 10# CONFIG_CMD_FLASH is not set 11CONFIG_CMD_SF=y 12# CONFIG_CMD_FPGA is not set 13CONFIG_SPI_FLASH=y 14CONFIG_USB=y 15CONFIG_USB_STORAGE=y 16