BUILTIN_DTB := $(patsubst "%",%,$(CONFIG_BUILTIN_DTB_NAME)) obj-$(CONFIG_BUILTIN_DTB) += $(BUILTIN_DTB).dtb.o .SECONDARY: $(obj)/$(BUILTIN_DTB).dtb.S targets += dtbs targets += $(dtb-y) extra-y += $(dtb-y) clean-files := *.dtb *.dtb.S