[POWERPC] 4xx: Fix Walnut wrapper compile errors
Pass the appropriate -mcpu flag to the treeboot-walnut.o object to prevent
some toolchains from erroring out with unknown opcodes
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
diff --git a/arch/powerpc/boot/Makefile b/arch/powerpc/boot/Makefile
index a6bba9a..53fd8e6 100644
--- a/arch/powerpc/boot/Makefile
+++ b/arch/powerpc/boot/Makefile
@@ -33,6 +33,7 @@
$(obj)/4xx.o: BOOTCFLAGS += -mcpu=440
$(obj)/ebony.o: BOOTCFLAGS += -mcpu=440
+$(obj)/treeboot-walnut.o: BOOTCFLAGS += -mcpu=405
zlib := inffast.c inflate.c inftrees.c
zlibheader := inffast.h inffixed.h inflate.h inftrees.h infutil.h