diff --git a/lava-expect/trusted-firmware.inc b/lava-expect/trusted-firmware.inc
new file mode 100644
index 0000000..7133da6
--- /dev/null
+++ b/lava-expect/trusted-firmware.inc
@@ -0,0 +1,24 @@
+#
+# Copyright (c) 2021, Arm Limited. All rights reserved.
+#
+# SPDX-License-Identifier: BSD-3-Clause
+#
+# Script to interact with AArch64 Trusted Firmware-A.
+#
+
+# Initial boot message won't be present if we're starting at BL31. Skip waiting
+# for them by inspecting the environment variable 'skip_early_boot_msgs'.
+if [ -z "$skip_early_boot_msgs" ]; then
+
+        expect_string+=('Booting Trusted Firmware')
+
+        prompt='Booting BL2'
+        # Catch all 3 possible BL2 loading error messages, namely:
+        #   "Failure in pre image load handling of BL2"
+        #   "Failed to load BL2 firmware."
+        #   "Failure in post image load handling of BL2"
+        failures='Fail.*load.*BL2'
+        expect_string+=("${prompt};;${failures}")
+
+	expect_string+=('BL1: Booting BL31')
+fi