diff --git a/writeprotect.h b/writeprotect.h
new file mode 100644
index 0000000..8510226
--- /dev/null
+++ b/writeprotect.h
@@ -0,0 +1,23 @@
+/*
+ * This file is part of the flashrom project.
+ *
+ * Copyright (C) 2010 Google Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#ifndef __WRITEPROTECT_H__
+#define __WRITEPROTECT_H__ 1
+
+#define MAX_BP_BITS 4
+
+#endif /* !__WRITEPROTECT_H__ */