diff --git a/arch/sparc/include/asm/prom.h b/arch/sparc/include/asm/prom.h
index 1b15212..be8d7aa 100644
--- a/arch/sparc/include/asm/prom.h
+++ b/arch/sparc/include/asm/prom.h
@@ -87,6 +87,7 @@
 
 extern void prom_build_devicetree(void);
 extern void of_populate_present_mask(void);
+extern void of_fill_in_cpu_data(void);
 
 /* Dummy ref counting routines - to be implemented later */
 static inline struct device_node *of_node_get(struct device_node *node)