1CONFIG_ARM=y 2CONFIG_TARGET_LS1043ARDB=y 3CONFIG_SYS_EXTRA_OPTIONS="SYS_FSL_DDR4, SECURE_BOOT" 4CONFIG_SYS_NS16550=y 5CONFIG_DEFAULT_DEVICE_TREE="fsl-ls1043a-rdb" 6CONFIG_OF_CONTROL=y 7CONFIG_DM=y 8CONFIG_SPI_FLASH=y 9CONFIG_DM_SPI=y