diff --git a/board/xilinx/ppc405-generic/Makefile b/board/xilinx/ppc405-generic/Makefile
index 717ffc9c9f1a5158ce5131e268253324cd6f0c59..501fd467e1d15954e7a174a0fea0c32318dab1aa 100644
--- a/board/xilinx/ppc405-generic/Makefile
+++ b/board/xilinx/ppc405-generic/Makefile
@@ -27,12 +27,9 @@
 
 include $(TOPDIR)/config.mk
 ifneq ($(OBJTREE),$(SRCTREE))
+$(shell mkdir -p $(obj)../../xilinx/ppc405-generic)
 endif
 
-INCS		:=
-CFLAGS		+= $(INCS)
-HOSTCFLAGS	+= $(INCS)
-
 LIB	= $(obj)lib$(BOARD).o
 
 COBJS	+= ../../xilinx/ppc405-generic/xilinx_ppc405_generic.o
@@ -41,10 +38,8 @@ SRCS	:= $(SOBJS:.o=.S) $(COBJS:.o=.c)
 OBJS	:= $(addprefix $(obj),$(COBJS))
 SOBJS	:= $(addprefix $(obj),$(SOBJS))
 
-all: $(LIB) $(SOBJS)
-
-$(LIB):	$(OBJS)
-	$(call cmd_link_o_target, $^)
+$(LIB):	$(obj).depend $(OBJS) $(SOBJS)
+	$(call cmd_link_o_target, $(OBJS))
 
 clean:
 	rm -f $(SOBJS) $(OBJS)
diff --git a/board/xilinx/ppc440-generic/Makefile b/board/xilinx/ppc440-generic/Makefile
index 1760e4e3bed5f0192659fe6c33b9233dde70b093..ed2cf9f4330da10f4a56feffe01ec9072f7be185 100644
--- a/board/xilinx/ppc440-generic/Makefile
+++ b/board/xilinx/ppc440-generic/Makefile
@@ -27,26 +27,20 @@
 
 include $(TOPDIR)/config.mk
 ifneq ($(OBJTREE),$(SRCTREE))
+$(shell mkdir -p $(obj)../../xilinx/ppc440-generic)
 endif
 
-INCS		:=
-CFLAGS		+= $(INCS)
-HOSTCFLAGS	+= $(INCS)
-
 LIB	= $(obj)lib$(BOARD).o
 
 COBJS	+= ../../xilinx/ppc440-generic/xilinx_ppc440_generic.o
-
-SOBJS	+= ../../xilinx/ppc440-generic/init.o
+SOBJS 	+= ../../xilinx/ppc440-generic/init.o
 
 SRCS	:= $(SOBJS:.o=.S) $(COBJS:.o=.c)
 OBJS	:= $(addprefix $(obj),$(COBJS))
 SOBJS	:= $(addprefix $(obj),$(SOBJS))
 
-all: $(LIB) $(SOBJS)
-
-$(LIB):	$(OBJS)
-	$(call cmd_link_o_target, $^)
+$(LIB):	$(obj).depend $(OBJS) $(SOBJS)
+	$(call cmd_link_o_target, $(OBJS))
 
 clean:
 	rm -f $(SOBJS) $(OBJS)