diff --git a/model/css-sgi575-ports.awk b/model/css-sgi575-ports.awk
new file mode 100644
index 0000000..f34bff1
--- /dev/null
+++ b/model/css-sgi575-ports.awk
@@ -0,0 +1,15 @@
+#
+# Copyright (c) 2019, Arm Limited. All rights reserved.
+#
+# SPDX-License-Identifier: BSD-3-Clause
+#
+
+/terminal_s0/ { ports[0] = $NF }
+/terminal_s1/ { ports[1] = $NF }
+/terminal_uart_aon/ { ports[2] = $NF }
+END {
+	for (i = 0; i < num_uarts; i++) {
+		if (ports[i] != "")
+			print "ports[" i "]=" ports[i]
+	}
+}