PPC: Preliminary untested boot support for Common Firmware Environment

CFE is used in the upcoming Amiga X-1000 dualcore PPC board.
* Largely inspired by the OF and U-Boot code.
* Still largely stubbed out.
* The loader builds but I don't have a machine to test it. Anyone interested?

src/system/boot/platform/cfe/menu.cpp

@@ -0,0 +1,48 @@
+/*
+ * Copyright 2004, Axel Dörfler, [email protected].
+ * All rights reserved. Distributed under the terms of the MIT License.
+ */
+
+
+#include <boot/platform.h>
+#include <boot/menu.h>
+#include <boot/platform/generic/text_menu.h>
+
+
+void
+platform_add_menus(Menu *menu)
+{
+	// ToDo: implement me!
+
+	switch (menu->Type()) {
+		case MAIN_MENU:
+			break;
+		case SAFE_MODE_MENU:
+			break;
+		default:
+			break;
+	}
+}
+
+
+void
+platform_update_menu_item(Menu *menu, MenuItem *item)
+{
+	platform_generic_update_text_menu_item(menu, item);
+}
+
+
+void
+platform_run_menu(Menu *menu)
+{
+	platform_generic_run_text_menu(menu);
+}
+
+
+size_t
+platform_get_user_input_text(Menu *menu, MenuItem *item, char *buffer,
+	size_t bufferSize)
+{
+	return platform_generic_get_user_input_text(menu, item, buffer,
+		bufferSize);
+}