diff --git a/include/asm-arm/arch-sa1100/debug-macro.S b/include/asm-arm/arch-sa1100/debug-macro.S
index 755fa3453862..267c317a7408 100644
--- a/include/asm-arm/arch-sa1100/debug-macro.S
+++ b/include/asm-arm/arch-sa1100/debug-macro.S
@@ -10,6 +10,7 @@
  * published by the Free Software Foundation.
  *
 */
+#include <asm/hardware.h>
 
 		.macro	addruart,rx
 		mrc	p15, 0, \rx, c1, c0