+ARCH_PATH := arch/$(ARCH)/dts
+dtb_depends := arch-dtbs
+
+ifneq ($(EXT_DTB),)
+DTB := $(EXT_DTB)
+else
+DTB := $(ARCH_PATH)/$(DEVICE_TREE).dtb
+dtb_depends += $(DTB:.dtb=.dts)
+endif
+
+$(obj)/dt-spl.dtb: $(DTB) $(objtree)/tools/fdtgrep FORCE
+ $(call if_changed,fdtgrep)