u-boot/lib/efi_loader/Kconfig

config EFI_LOADER
	bool "Support running EFI Applications in U-Boot"
	depends on (ARM64 || ARM) && OF_LIBFDT
	default y
	help
	  Select this option if you want to run EFI applications (like grub2)
	  on top of U-Boot. If this option is enabled, U-Boot will expose EFI
	  interfaces to a loaded EFI application, enabling it to reuse U-Boot's
	  device drivers.