=== modified file 'video/ieee1275.c'
--- video/ieee1275.c	2010-03-14 15:32:50 +0000
+++ video/ieee1275.c	2010-03-14 19:40:47 +0000
@@ -167,6 +167,15 @@
     return grub_error (GRUB_ERR_IO, "Couldn't retrieve display address.");
 
   /* For some reason sparc64 uses 32-bit pointer too.  */
+  framebuffer.ptr = 0x80000000;
+  ret = grub_ieee1275_map (address, framebuffer.ptr,
+			   framebuffer.mode_info.pitch
+			   * framebuffer.mode_info.height,
+			   IEEE1275_MAP_DEFAULT);
+  if (ret)
+    return grub_error (GRUB_ERR_OUT_OF_MEMORY,
+		       "couldn't map physical memory");
+
   framebuffer.ptr = (void *) (grub_addr_t) address;
 
   grub_video_ieee1275_set_palette (0, GRUB_VIDEO_FBSTD_NUMCOLORS,