X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=dts%2FMakefile;h=03e163ef0aecaa9af9ab0812e85a781187dfdb13;hb=944b6ccf1bc436546844536bf62ba62a906ed4e4;hp=785104e6d6409aa1b956db10107e17ddc6257a6d;hpb=6e2fbdea1b26d75314d87c380a36b0015bf824cf;p=u-boot

diff --git a/dts/Makefile b/dts/Makefile
index 785104e6d6..03e163ef0a 100644
--- a/dts/Makefile
+++ b/dts/Makefile
@@ -27,18 +27,21 @@ include $(TOPDIR)/config.mk
 
 LIB	= $(obj)libdts.o
 
+ifeq ($(DEVICE_TREE),)
 $(if $(CONFIG_DEFAULT_DEVICE_TREE),,\
 $(error Please define CONFIG_DEFAULT_DEVICE_TREE in your board header file))
 DEVICE_TREE = $(subst ",,$(CONFIG_DEFAULT_DEVICE_TREE))
+endif
 
 $(if $(CONFIG_ARCH_DEVICE_TREE),,\
 $(error Your architecture does not have device tree support enabled. \
 Please define CONFIG_ARCH_DEVICE_TREE))
 
 # We preprocess the device tree file provide a useful define
-DTS_CPPFLAGS := -ansi \
+DTS_CPPFLAGS := -x assembler-with-cpp \
 		-DARCH_CPU_DTS=\"$(SRCTREE)/arch/$(ARCH)/dts/$(CONFIG_ARCH_DEVICE_TREE).dtsi\" \
-		-DBOARD_DTS=\"$(SRCTREE)/board/$(VENDOR)/$(BOARD)/dts/$(DEVICE_TREE).dts\"
+		-DBOARD_DTS=\"$(SRCTREE)/board/$(VENDOR)/$(BOARD)/dts/$(DEVICE_TREE).dts\" \
+		-I$(SRCTREE)/board/$(VENDOR)/dts -I$(SRCTREE)/arch/$(ARCH)/dts
 
 all:	$(obj).depend $(LIB)