1CONFIG_ARM=y 2CONFIG_ARCH_EXYNOS=y 3CONFIG_TARGET_SMDK5420=y 4CONFIG_DEFAULT_DEVICE_TREE="exynos5420-smdk5420" 5CONFIG_SPL=y 6CONFIG_CMD_NET=y 7CONFIG_SPI_FLASH=y 8CONFIG_USB=y 9CONFIG_DM_USB=y 10