[POWERPC] Walnut board support

Board support for the PPC405 Walnut evaluation board

Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
diff --git a/arch/powerpc/platforms/Makefile b/arch/powerpc/platforms/Makefile
index d44e832..6d9079d 100644
--- a/arch/powerpc/platforms/Makefile
+++ b/arch/powerpc/platforms/Makefile
@@ -9,7 +9,7 @@
 endif
 endif
 obj-$(CONFIG_PPC_CHRP)		+= chrp/
-#obj-$(CONFIG_4xx)		+= 4xx/
+obj-$(CONFIG_40x)		+= 40x/
 obj-$(CONFIG_44x)		+= 44x/
 obj-$(CONFIG_PPC_MPC52xx)	+= 52xx/
 obj-$(CONFIG_PPC_8xx)		+= 8xx/