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