choice prompt "Storage device type" default STORAGE_SPINOR depends on PLATFORM_ROOTFS help SPI_NOR or SPI_NAND or EMMC.config STORAGE_SPINOR depends on PLATFORM_ROOTFS && DRIVERS_MTD_SPI_NOR bool "SPI_NOR Flash"config STORAGE_SPINAND depends on PLATFORM_ROOTFS && DRIVERS_MTD_NAND bool "SPI_NAND Flash"config STORAGE_EMMC depends on PLATFORM_ROOTFS && DRIVERS_EMMC bool "EMMC"endchoiceconfig BOOTENV_ADDR int "Address of boot command line (KB)" depends on PLATFORM_ROOTFS range 0 1024 default 512 help Boot command line addr, range from 0 to 1MB.