diff --git a/include/asm-ppc/system.h b/include/asm-ppc/system.h
index f1311a8..cc45780 100644
--- a/include/asm-ppc/system.h
+++ b/include/asm-ppc/system.h
@@ -54,6 +54,7 @@
 extern void flush_instruction_cache(void);
 extern void hard_reset_now(void);
 extern void poweroff_now(void);
+extern int set_dabr(unsigned long dabr);
 #ifdef CONFIG_6xx
 extern long _get_L2CR(void);
 extern long _get_L3CR(void);