diff --git a/include/asm-ia64/sn/leds.h b/include/asm-ia64/sn/leds.h
new file mode 100644
index 0000000..66cf8c4
--- /dev/null
+++ b/include/asm-ia64/sn/leds.h
@@ -0,0 +1,33 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ * Copyright (C) 2000-2004 Silicon Graphics, Inc. All rights reserved.
+ */
+#ifndef _ASM_IA64_SN_LEDS_H
+#define _ASM_IA64_SN_LEDS_H
+
+#include <asm/sn/addrs.h>
+#include <asm/sn/pda.h>
+#include <asm/sn/shub_mmr.h>
+
+#define LED0		(LOCAL_MMR_ADDR(SH_REAL_JUNK_BUS_LED0))
+#define LED_CPU_SHIFT	16
+
+#define LED_CPU_HEARTBEAT	0x01
+#define LED_CPU_ACTIVITY	0x02
+#define LED_ALWAYS_SET		0x00
+
+/*
+ * Basic macros for flashing the LEDS on an SGI SN.
+ */
+
+static __inline__ void
+set_led_bits(u8 value, u8 mask)
+{
+	pda->led_state = (pda->led_state & ~mask) | (value & mask);
+	*pda->led_address = (short) pda->led_state;
+}
+
+#endif /* _ASM_IA64_SN_LEDS_H */
+