diff --git a/include/net/ncsi.h b/include/net/ncsi.h
new file mode 100644
index 0000000..2800c84
--- /dev/null
+++ b/include/net/ncsi.h
@@ -0,0 +1,14 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * NC-SI PHY
+ *
+ * Copyright (C) 2019, IBM Corporation.
+ */
+
+#include <common.h>
+#include <phy.h>
+
+bool ncsi_active(void);
+void ncsi_receive(struct ethernet_hdr *et, struct ip_udp_hdr *ip,
+		  unsigned int len);
+void ncsi_probe_packages(void);