Fix ppc compilation problems

include/grub/powerpc/memory.h

@@ -0,0 +1,47 @@
+/* memory.h - describe the memory map */
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2002,2007,2008,2009  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef GRUB_MEMORY_CPU_HEADER
+#define GRUB_MEMORY_CPU_HEADER	1
+
+#ifndef ASM_FILE
+
+typedef grub_addr_t grub_phys_addr_t;
+
+static inline grub_phys_addr_t
+grub_vtop (void *a)
+{
+  return (grub_phys_addr_t) a;
+}
+
+static inline void *
+grub_map_memory (grub_phys_addr_t a, grub_size_t size __attribute__ ((unused)))
+{
+  return (void *) a;
+}
+
+static inline void
+grub_unmap_memory (void *a __attribute__ ((unused)),
+		   grub_size_t size __attribute__ ((unused)))
+{
+}
+
+#endif
+
+#endif /* ! GRUB_MEMORY_CPU_HEADER */