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diff --git a/src/mainboard/lippert/frontrunner-af/sema.h b/src/mainboard/lippert/frontrunner-af/sema.h
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+/*
+ * This file is part of the coreboot project.
+ *
+ * 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; version 2 of the License.
+ *
+ * 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 __LIPPERT_SEMA_H__
+#define __LIPPERT_SEMA_H__
+
+/* Signal SEMA watchdog a successful boot.
+ * Returns < 0 is SMBus message failed after
+ * several retries.
+ */
+int sema_send_alive(void);
+
+#endif