Index: yaboot/second/yaboot.c
===================================================================
--- yaboot.orig/second/yaboot.c	2010-07-08 16:17:23.000000000 +1000
+++ yaboot/second/yaboot.c	2010-07-08 16:17:43.000000000 +1000
@@ -157,11 +157,6 @@ extern unsigned char linux_logo_blue[];
 
 #define DEFAULT_TIMEOUT		-1
 
-/* Entry, currently called directly by crt0 (bss not inited) */
-
-extern char* __bss_start;
-extern char* _end;
-
 int
 yaboot_start (unsigned long r3, unsigned long r4, unsigned long r5)
 {
@@ -169,9 +164,6 @@ yaboot_start (unsigned long r3, unsigned
      void* malloc_base = NULL;
      prom_handle root;
 
-     /* OF seems to do it, but I'm not very confident */
-     memset(&__bss_start, 0, &_end - &__bss_start);
-
      /* Initialize OF interface */
      prom_init ((prom_entry) r5);
 
Index: yaboot/second/crt0.S
===================================================================
--- yaboot.orig/second/crt0.S	2010-07-08 16:17:48.000000000 +1000
+++ yaboot/second/crt0.S	2010-07-08 16:18:16.000000000 +1000
@@ -2,7 +2,7 @@
 #include "asm/processor.h"
 
 /*
- * Main entry point. should add code to clear BSS and more ...
+ * Main entry point. We zero the BSS then jump to yaboot_start.
  */
 _GLOBAL(_start)
 	lis	r10,edata@h