diff --git a/board/siemens/CCM/Makefile b/board/siemens/CCM/Makefile
index ee2fc53..2ad4c83 100644
--- a/board/siemens/CCM/Makefile
+++ b/board/siemens/CCM/Makefile
@@ -1,5 +1,5 @@
 #
-# (C) Copyright 2001
+# (C) Copyright 2001-2006
 # Wolfgang Denk, DENX Software Engineering, wd@denx.de.
 #
 # See file CREDITS for list of people who contributed to this
@@ -22,20 +22,28 @@
 #
 
 include $(TOPDIR)/config.mk
+ifneq ($(OBJTREE),$(SRCTREE))
+$(shell mkdir -p $(obj)../common)
+$(shell mkdir -p $(obj)../../tqm8xx)
+endif
 
-LIB	= lib$(BOARD).a
+LIB	= $(obj)lib$(BOARD).a
 
-OBJS	= ccm.o flash.o fpga_ccm.o ../common/fpga.o \
+COBJS	= ccm.o flash.o fpga_ccm.o ../common/fpga.o \
 	  ../../tqm8xx/load_sernum_ethaddr.o
 
-$(LIB):	.depend $(OBJS)
+SRCS	:= $(SOBJS:.o=.S) $(COBJS:.o=.c)
+OBJS	:= $(addprefix $(obj),$(COBJS))
+SOBJS	:= $(addprefix $(obj),$(SOBJS))
+
+$(LIB):	$(obj).depend $(OBJS)
 	$(AR) crv $@ $(OBJS)
 
 #########################################################################
 
-.depend:	Makefile $(SOBJS:.o=.S) $(OBJS:.o=.c)
-		$(CC) -M $(CFLAGS) $(SOBJS:.o=.S) $(OBJS:.o=.c) > $@
+# defines $(obj).depend target
+include $(SRCTREE)/rules.mk
 
-sinclude .depend
+sinclude $(obj).depend
 
 #########################################################################
diff --git a/board/siemens/IAD210/Makefile b/board/siemens/IAD210/Makefile
index 87a6893..3964381 100644
--- a/board/siemens/IAD210/Makefile
+++ b/board/siemens/IAD210/Makefile
@@ -1,5 +1,5 @@
 #
-# (C) Copyright 2000, 2001, 2002
+# (C) Copyright 2000-2006
 # Wolfgang Denk, DENX Software Engineering, wd@denx.de.
 #
 # See file CREDITS for list of people who contributed to this
@@ -23,18 +23,22 @@
 
 include $(TOPDIR)/config.mk
 
-LIB	= lib$(BOARD).a
+LIB	= $(obj)lib$(BOARD).a
 
-OBJS	= $(BOARD).o flash.o atm.o
+COBJS	= $(BOARD).o flash.o atm.o
 
-$(LIB):	.depend $(OBJS)
+SRCS	:= $(SOBJS:.o=.S) $(COBJS:.o=.c)
+OBJS	:= $(addprefix $(obj),$(COBJS))
+SOBJS	:= $(addprefix $(obj),$(SOBJS))
+
+$(LIB):	$(obj).depend $(OBJS)
 	$(AR) crv $@ $(OBJS)
 
 #########################################################################
 
-.depend:	Makefile $(SOBJS:.o=.S) $(OBJS:.o=.c)
-		$(CC) -M $(CFLAGS) $(SOBJS:.o=.S) $(OBJS:.o=.c) > $@
+# defines $(obj).depend target
+include $(SRCTREE)/rules.mk
 
-sinclude .depend
+sinclude $(obj).depend
 
 #########################################################################
diff --git a/board/siemens/SCM/Makefile b/board/siemens/SCM/Makefile
index af646e4..b4bbb53 100644
--- a/board/siemens/SCM/Makefile
+++ b/board/siemens/SCM/Makefile
@@ -1,5 +1,5 @@
 #
-# (C) Copyright 2001
+# (C) Copyright 2001-2006
 # Wolfgang Denk, DENX Software Engineering, wd@denx.de.
 #
 # See file CREDITS for list of people who contributed to this
@@ -22,21 +22,28 @@
 #
 
 include $(TOPDIR)/config.mk
+ifneq ($(OBJTREE),$(SRCTREE))
+$(shell mkdir -p $(obj)../common)
+$(shell mkdir -p $(obj)../../tqm8xx/)
+endif
 
-LIB	= lib$(BOARD).a
+LIB	= $(obj)lib$(BOARD).a
 
-OBJS	= scm.o flash.o fpga_scm.o ../common/fpga.o \
+COBJS	= scm.o flash.o fpga_scm.o ../common/fpga.o \
 	  ../../tqm8xx/load_sernum_ethaddr.o
 
+SRCS	:= $(SOBJS:.o=.S) $(COBJS:.o=.c)
+OBJS	:= $(addprefix $(obj),$(COBJS))
+SOBJS	:= $(addprefix $(obj),$(SOBJS))
 
-$(LIB):	.depend $(OBJS)
+$(LIB):	$(obj).depend $(OBJS)
 	$(AR) crv $@ $(OBJS)
 
 #########################################################################
 
-.depend:	Makefile $(SOBJS:.o=.S) $(OBJS:.o=.c)
-		$(CC) -M $(CFLAGS) $(SOBJS:.o=.S) $(OBJS:.o=.c) > $@
+# defines $(obj).depend target
+include $(SRCTREE)/rules.mk
 
-sinclude .depend
+sinclude $(obj).depend
 
 #########################################################################
diff --git a/board/siemens/pcu_e/Makefile b/board/siemens/pcu_e/Makefile
index 7a2014d..1b57d2b 100644
--- a/board/siemens/pcu_e/Makefile
+++ b/board/siemens/pcu_e/Makefile
@@ -1,5 +1,5 @@
 #
-# (C) Copyright 2001
+# (C) Copyright 2001-2006
 # Wolfgang Denk, DENX Software Engineering, wd@denx.de.
 #
 # See file CREDITS for list of people who contributed to this
@@ -23,18 +23,22 @@
 
 include $(TOPDIR)/config.mk
 
-LIB	= lib$(BOARD).a
+LIB	= $(obj)lib$(BOARD).a
 
-OBJS	= $(BOARD).o flash.o
+COBJS	= $(BOARD).o flash.o
 
-$(LIB):	.depend $(OBJS)
+SRCS	:= $(SOBJS:.o=.S) $(COBJS:.o=.c)
+OBJS	:= $(addprefix $(obj),$(COBJS))
+SOBJS	:= $(addprefix $(obj),$(SOBJS))
+
+$(LIB):	$(obj).depend $(OBJS)
 	$(AR) crv $@ $(OBJS)
 
 #########################################################################
 
-.depend:	Makefile $(SOBJS:.o=.S) $(OBJS:.o=.c)
-		$(CC) -M $(CFLAGS) $(SOBJS:.o=.S) $(OBJS:.o=.c) > $@
+# defines $(obj).depend target
+include $(SRCTREE)/rules.mk
 
-sinclude .depend
+sinclude $(obj).depend
 
 #########################################################################