diff --git a/include/asm-sparc64/rtc.h b/include/asm-sparc64/rtc.h
new file mode 100644
index 0000000..cb17334
--- /dev/null
+++ b/include/asm-sparc64/rtc.h
@@ -0,0 +1,27 @@
+/* $Id: rtc.h,v 1.1 1996/12/26 14:22:35 davem Exp $
+ *
+ * rtc.h: Definitions for access to the Mostek real time clock
+ *
+ * Copyright (C) 1996 Thomas K. Dyas (tdyas@eden.rutgers.edu)
+ */
+
+#ifndef _RTC_H
+#define _RTC_H
+
+#include <linux/ioctl.h>
+
+struct rtc_time
+{
+	int	sec;	/* Seconds (0-59) */
+	int	min;	/* Minutes (0-59) */
+	int	hour;	/* Hour (0-23) */
+	int	dow;	/* Day of the week (1-7) */
+	int	dom;	/* Day of the month (1-31) */
+	int	month;	/* Month of year (1-12) */
+	int	year;	/* Year (0-99) */
+};
+
+#define RTCGET _IOR('p', 20, struct rtc_time)
+#define RTCSET _IOW('p', 21, struct rtc_time)
+
+#endif