diff --git a/Makefile b/Makefile
index ecde92b..8fb1e2a 100644
--- a/Makefile
+++ b/Makefile
@@ -3230,8 +3230,8 @@
 ## sh2 (Renesas SuperH)
 #########################################################################
 rsk7203_config: unconfig
-	@ >include/config.h
-	@echo "#define CONFIG_RSK7203 1" >> include/config.h
+	@mkdir -p $(obj)include
+	@echo "#define CONFIG_RSK7203 1" > $(obj)/include/config.h
 	@$(MKCONFIG) -a $(@:_config=) sh sh2 rsk7203 renesas
 
 #########################################################################
diff --git a/board/renesas/rsk7203/Makefile b/board/renesas/rsk7203/Makefile
index 7365d19..5412010 100644
--- a/board/renesas/rsk7203/Makefile
+++ b/board/renesas/rsk7203/Makefile
@@ -26,6 +26,10 @@
 OBJS	:= rsk7203.o
 SOBJS	:= lowlevel_init.o
 
+LIB	:= $(addprefix $(obj),$(LIB))
+OBJS	:= $(addprefix $(obj),$(OBJS))
+SOBJS	:= $(addprefix $(obj),$(SOBJS))
+
 $(LIB):	$(obj).depend $(OBJS) $(SOBJS)
 	$(AR) $(ARFLAGS) $@ $(OBJS) $(SOBJS)
 
diff --git a/cpu/sh2/Makefile b/cpu/sh2/Makefile
index e33ba0f..346d328 100644
--- a/cpu/sh2/Makefile
+++ b/cpu/sh2/Makefile
@@ -28,19 +28,24 @@
 
 LIB	= $(obj)lib$(CPU).a
 
-START	= start.o
-OBJS	= cpu.o interrupts.o watchdog.o
+SOBJS	= start.o
+COBJS	= cpu.o interrupts.o watchdog.o
 
-all:	.depend $(START) $(LIB)
+SRCS    := $(SOBJS:.o=.S) $(COBJS:.o=.c)
+OBJS    := $(addprefix $(obj),$(COBJS))
+SOBJS   := $(addprefix $(obj),$(SOBJS))
 
-$(LIB):	$(OBJS)
-	$(AR) $(ARFLAGS) $@ $(OBJS)
+$(LIB):	$(OBJS) $(SOBJS)
+	$(AR) $(ARFLAGS) $@ $(OBJS) $(SOBJS)
+
+clean:
+	rm -f $(SOBJS) $(OBJS)
+
+distclean:	clean
+	rm -f $(LIB) core *.bak $(obj).depend
 
 #########################################################################
 
-.depend:	Makefile $(START:.o=.S) $(OBJS:.o=.c)
-		$(CC) -M $(CFLAGS) $(START:.o=.S) $(OBJS:.o=.c) > $@
-
 # defines $(obj).depend target
 include $(SRCTREE)/rules.mk