diff --git a/arch/powerpc/cpu/mpc5xx/Makefile b/arch/powerpc/cpu/mpc5xx/Makefile
index e3e50af2..7b8826a 100644
--- a/arch/powerpc/cpu/mpc5xx/Makefile
+++ b/arch/powerpc/cpu/mpc5xx/Makefile
@@ -16,28 +16,5 @@
 #			uses the definitions made in arch/powerpc/cpu/mpc5xx/config.mk
 #
 
-
-include $(TOPDIR)/config.mk
-
-LIB	= $(obj)lib$(CPU).o
-
-START	= start.o
-COBJS	= serial.o cpu.o cpu_init.o interrupts.o traps.o speed.o spi.o
-
-SRCS	:= $(START:.o=.S) $(SOBJS:.o=.S) $(COBJS:.o=.c)
-OBJS	:= $(addprefix $(obj),$(SOBJS) $(COBJS))
-START	:= $(addprefix $(obj),$(START))
-
-all:	$(obj).depend $(START) $(LIB)
-
-$(LIB):	$(OBJS)
-	$(call cmd_link_o_target, $(OBJS))
-
-#########################################################################
-
-# defines $(obj).depend target
-include $(SRCTREE)/rules.mk
-
-sinclude $(obj).depend
-
-#########################################################################
+extra-y	= start.o
+obj-y	= serial.o cpu.o cpu_init.o interrupts.o traps.o speed.o spi.o