1CONFIG_SPL=y 2CONFIG_SYS_EXTRA_OPTIONS="SERIAL1,CONS_INDEX=1,EMMC_BOOT,ENABLE_VBOOT" 3+S:CONFIG_ARM=y 4+S:CONFIG_TARGET_AM335X_EVM=y 5CONFIG_OF_CONTROL=y 6CONFIG_DEFAULT_DEVICE_TREE="am335x-boneblack" 7