diff --git a/arch/powerpc/boot/Makefile b/arch/powerpc/boot/Makefile
index 4721baf928922..751a6e6070d23 100644
--- a/arch/powerpc/boot/Makefile
+++ b/arch/powerpc/boot/Makefile
@@ -35,6 +35,8 @@ endif
 
 BOOTCFLAGS	+= -I$(obj) -I$(srctree)/$(obj) -I$(srctree)/$(src)/libfdt
 
+DTS_FLAGS	?= -p 1024
+
 $(obj)/4xx.o: BOOTCFLAGS += -mcpu=405
 $(obj)/ebony.o: BOOTCFLAGS += -mcpu=405
 $(obj)/cuboot-taishan.o: BOOTCFLAGS += -mcpu=405