powerpc/bootwrapper: Pad .dtb by default

Since most bootloaders or wrappers tend to update or add some information
to the .dtb they a handled they need some working space to do that in.

By default add 1K of padding via a default setting of DTS_FLAGS.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>

diff --git a/arch/powerpc/boot/Makefile b/arch/powerpc/boot/Makefile
index 4721baf9289221dd281df188222fb6c9023cdfed..751a6e6070d232340223d05c69bb19c1404fcc8a 100644 (file)
--- 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