diff --git a/arch/arm/mach-at91/pm.h b/arch/arm/mach-at91/pm.h
index caac65f39838b0374b99a78c76cf2a9a6be24635..715813ed73e37b41525716766f223ee23313e992 100644
--- a/arch/arm/mach-at91/pm.h
+++ b/arch/arm/mach-at91/pm.h
@@ -1,3 +1,16 @@
+/*
+ * AT91 Power Management
+ *
+ * Copyright (C) 2005 David Brownell
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+#ifndef __ARCH_ARM_MACH_AT91_PM
+#define __ARCH_ARM_MACH_AT91_PM
+
 #ifdef CONFIG_ARCH_AT91RM9200
 #include <mach/at91rm9200_mc.h>
 
@@ -95,3 +108,5 @@ static inline u32 sdram_selfrefresh_enable(void)
 	cpu_do_idle()
 
 #endif
+
+#endif