diff --git a/cpu/cc2430/Makefile.cc2430 b/cpu/cc2430/Makefile.cc2430
index 4101416ab..b83e3cc80 100644
--- a/cpu/cc2430/Makefile.cc2430
+++ b/cpu/cc2430/Makefile.cc2430
@@ -129,13 +129,6 @@ $(OBJECTDIR)/%.rel: %.c $(SEGMENT_RULES) | $(OBJECTDIR)
 	$(CC) $(call c_seg,$<,$@) $(CFLAGS) -c $< -o $@ -Wp,-MMD,$(@:.rel=.d),-MQ,$@
 	@$(FINALIZE_SDCC_DEPENDENCY)
 
-$(OBJECTDIR)/%.rel: %.cS | $(OBJECTDIR)
-	cp $< $(OBJECTDIR)/$*.c
-	$(CC) $(CFLAGS) -E $(OBJECTDIR)/$*.c > $(OBJECTDIR)/tmp
-	perl -pe "s/^#(.*)/;$$1/" $(OBJECTDIR)/tmp > $(OBJECTDIR)/$*.S
-	$(AS) $(ASFLAGS) -o $@ $(OBJECTDIR)/$*.S
-	rm -f $(OBJECTDIR)/tmp
-
 contiki-$(TARGET).lib: $(CONTIKI_OBJECTFILES) $(PROJECT_OBJECTFILES) \
 	$(CONTIKI_ASMOBJECTFILES) $(CONTIKI_CASMOBJECTFILES)
 	rm -f $@
diff --git a/cpu/cc253x/Makefile.cc253x b/cpu/cc253x/Makefile.cc253x
index f919285c2..ff8b61648 100644
--- a/cpu/cc253x/Makefile.cc253x
+++ b/cpu/cc253x/Makefile.cc253x
@@ -150,13 +150,6 @@ $(OBJECTDIR)/%.rel: %.c $(SEGMENT_RULES) | $(OBJECTDIR)
 	$(CC) $(call c_seg,$<,$@) $(CFLAGS) -c $< -o $@ -Wp,-MMD,$(@:.rel=.d),-MQ,$@
 	@$(FINALIZE_SDCC_DEPENDENCY)
 
-$(OBJECTDIR)/%.rel: %.cS | $(OBJECTDIR)
-	cp $< $(OBJECTDIR)/$*.c
-	$(CC) $(CFLAGS) -E $(OBJECTDIR)/$*.c > $(OBJECTDIR)/tmp
-	perl -pe "s/^#(.*)/;$$1/" $(OBJECTDIR)/tmp > $(OBJECTDIR)/$*.S
-	$(AS) $(ASFLAGS) -o $@ $(OBJECTDIR)/$*.S
-	rm -f $(OBJECTDIR)/tmp
-
 contiki-$(TARGET).lib: $(CONTIKI_OBJECTFILES) $(PROJECT_OBJECTFILES) \
 	$(CONTIKI_ASMOBJECTFILES) $(CONTIKI_CASMOBJECTFILES)
 	rm -f $@
diff --git a/platform/cc2530dk/Makefile.cc2530dk b/platform/cc2530dk/Makefile.cc2530dk
index f8d9c54ab..cae4911b5 100644
--- a/platform/cc2530dk/Makefile.cc2530dk
+++ b/platform/cc2530dk/Makefile.cc2530dk
@@ -43,12 +43,6 @@ FORCE:
 	@egrep '(^BANK[1-9][^=])' $(<:.hex=.map) | uniq | sort
 	@egrep -A 5 'Other memory' $(<:.hex=.mem)
 
-%.upload: %.hex
-	$(PROG) -P $<
-
-sensinode.serialdump:
-	$(SERIALDUMP)
-
 ### Define the CPU directory
 CONTIKI_CPU=$(CONTIKI)/cpu/cc253x
 include $(CONTIKI_CPU)/Makefile.cc253x