config PAYLOAD_UBOOT bool "U-Boot (Experimental)" depends on ARCH_X86 help Select this option if you want to build a coreboot image with a U-Boot payload. See https://doc.coreboot.org/payloads.html and U-Boot's documentation at http://git.denx.de/?p=u-boot.git;a=blob;f=doc/README.x86 for more information.