diff --git a/arch/arm/mach-shark/include/mach/debug-macro.S b/arch/arm/mach-shark/include/mach/debug-macro.S
index 50f071c5bf4d603656a01a9c8c2865bf07ee2eb9..5ea24d4d1ba6e176985b16076b48412952de9aec 100644
--- a/arch/arm/mach-shark/include/mach/debug-macro.S
+++ b/arch/arm/mach-shark/include/mach/debug-macro.S
@@ -20,6 +20,9 @@
 		strb	\rd, [\rx]
 		.endm
 
+		.macro waituart,rd,rx
+		.endm
+
 		.macro	busyuart,rd,rx
 		mov	\rd, #0
 1001:		add	\rd, \rd, #1