diff --git a/plat/arm/board/tc/tc_security.c b/plat/arm/board/tc/tc_security.c
new file mode 100644
index 0000000..6a34501
--- /dev/null
+++ b/plat/arm/board/tc/tc_security.c
@@ -0,0 +1,23 @@
+/*
+ * Copyright (c) 2020, Arm Limited. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <plat/arm/common/plat_arm.h>
+#include <platform_def.h>
+
+static const arm_tzc_regions_info_t tzc_regions[] = {
+	TC_TZC_REGIONS_DEF,
+	{}
+};
+
+/* Initialize the secure environment */
+void plat_arm_security_setup(void)
+{
+	unsigned int i;
+
+	for (i = 0U; i < TZC400_COUNT; i++) {
+		arm_tzc400_setup(TZC400_BASE(i), tzc_regions);
+	}
+}