diff --git a/arch/arm/mach-s3c24a0/include/mach/timex.h b/arch/arm/mach-s3c24a0/include/mach/timex.h
new file mode 100644
index 0000000..9857342
--- /dev/null
+++ b/arch/arm/mach-s3c24a0/include/mach/timex.h
@@ -0,0 +1,18 @@
+/* linux/arch/arm/mach-s3c24a0/include/mach/timex.h
+ *
+ * Copyright (c) 2008 Simtec Electronics
+ *	Ben Dooks <ben@simtec.co.uk>
+ *
+ * S3C2410 - time parameters
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+#ifndef __ASM_ARCH_TIMEX_H
+#define __ASM_ARCH_TIMEX_H
+
+#define CLOCK_TICK_RATE 12000000
+
+#endif /* __ASM_ARCH_TIMEX_H */