-# Helper targets for Installing DTBs into the boot directory
-quiet_cmd_dtb_install = INSTALL $<
- cmd_dtb_install = cp $< $(2)
-
-_dtbinst_pre_:
- $(Q)if [ -d $(INSTALL_DTBS_PATH).old ]; then rm -rf $(INSTALL_DTBS_PATH).old; fi
- $(Q)if [ -d $(INSTALL_DTBS_PATH) ]; then mv $(INSTALL_DTBS_PATH) $(INSTALL_DTBS_PATH).old; fi
- $(Q)mkdir -p $(INSTALL_DTBS_PATH)
-
-%.dtb_dtbinst_: $(obj)/%.dtb _dtbinst_pre_
- $(call cmd,dtb_install,$(INSTALL_DTBS_PATH))
+# ACPI
+# ---------------------------------------------------------------------------
+quiet_cmd_acpi_c_asl= ASL $@
+cmd_acpi_c_asl= \
+ $(CPP) -x assembler-with-cpp -P -o $<.tmp $<; \
+ iasl -p $< -tc -va $<.tmp; \
+ mv $(patsubst %.asl,%.hex,$<) $@
+
+$(obj)/%.c: $(src)/%.asl
+ $(call cmd,acpi_c_asl)