Add missing Blackfin files.
diff --git a/include/asm-blackfin/cpu/defBF531.h b/include/asm-blackfin/cpu/defBF531.h
new file mode 100644
index 0000000..6c7cd5a
--- /dev/null
+++ b/include/asm-blackfin/cpu/defBF531.h
@@ -0,0 +1,24 @@
+/*
+ * defBF531.h
+ *
+ * This file is subject to the terms and conditions of the GNU Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Non-GPL License also available as part of VisualDSP++
+ *
+ * http://www.analog.com/processors/resources/crosscore/visualDspDevSoftware.html
+ *
+ * (c) Copyright 2001-2005 Analog Devices, Inc. All rights reserved
+ *
+ * This file under source code control, please send bugs or changes to:
+ * dsptools.support@analog.com
+ *
+ */
+
+#ifndef _DEFBF531_H
+#define _DEFBF531_H
+
+#include <defBF532.h>
+
+#endif /* _DEFBF531_H */