diff --git a/plat/arm/css/sgi/include/sgi_ras.h b/plat/arm/css/sgi/include/sgi_ras.h
new file mode 100644
index 0000000..b307b9c
--- /dev/null
+++ b/plat/arm/css/sgi/include/sgi_ras.h
@@ -0,0 +1,22 @@
+/*
+ * Copyright (c) 2018, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef __SGI_RAS__
+#define __SGI_RAS__
+
+/*
+ * Mapping the RAS interrupt with SDEI event number and the event
+ * id used with Standalone MM code
+ */
+struct sgi_ras_ev_map {
+	int ras_ev_num;		/* RAS Event number */
+	int sdei_ev_num;	/* SDEI Event number */
+	int intr;		/* Physical intr number */
+};
+
+int sgi_ras_intr_handler_setup(void);
+
+#endif /* __SGI_RAS__ */