diff --git a/arch/arm/mach-shmobile/include/mach/common.h b/arch/arm/mach-shmobile/include/mach/common.h
index 3ab6402..a77f027 100644
--- a/arch/arm/mach-shmobile/include/mach/common.h
+++ b/arch/arm/mach-shmobile/include/mach/common.h
@@ -23,6 +23,7 @@
 extern struct clk sh7367_extal2_clk;
 
 extern void sh7377_init_irq(void);
+extern void sh7377_map_io(void);
 extern void sh7377_add_early_devices(void);
 extern void sh7377_add_standard_devices(void);
 extern void sh7377_clock_init(void);