diff --git a/include/asm-sh64/spinlock.h b/include/asm-sh64/spinlock.h
new file mode 100644
index 0000000..296b0c9
--- /dev/null
+++ b/include/asm-sh64/spinlock.h
@@ -0,0 +1,17 @@
+#ifndef __ASM_SH64_SPINLOCK_H
+#define __ASM_SH64_SPINLOCK_H
+
+/*
+ * 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.
+ *
+ * include/asm-sh64/spinlock.h
+ *
+ * Copyright (C) 2000, 2001  Paolo Alberelli
+ *
+ */
+
+#error "No SMP on SH64"
+
+#endif /* __ASM_SH64_SPINLOCK_H */