This change adds PPC support to libpayload, and hooks it up in the build

process.
The PPC support is still stubbed, with commented out x86 code as guide
line for an implementor.

Signed-off-by: Patrick Georgi <patrick.georgi@coresystems.de>
Acked-by: Stefan Reinauer <stepan@coresystems.de>


git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4293 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1

payloads/libpayload/Config.in

@@ -30,15 +30,27 @@
 
 mainmenu "Libpayload Configuration"
 
-# When (if) we support multiple architectures, this will become an option.
-config TARGET_I386
-	bool
-	default y
-
 menu "Architecture Options"
 
+choice
+        prompt "Target Architecture"
+        default TARGET_I386
+
+config TARGET_I386
+        bool "x86"
+        help
+          Support the x86 architecture
+
+config TARGET_POWERPC
+        bool "PowerPC"
+        help
+	  Support the PowerPC architecture
+
+endchoice
+
 config MULTIBOOT
 	bool "Multiboot header support"
+	depends on TARGET_I386
 	default y
 
 endmenu