diff --git a/include/plat/arm/common/plat_arm.h b/include/plat/arm/common/plat_arm.h
index 45b5077..2fe0a69 100644
--- a/include/plat/arm/common/plat_arm.h
+++ b/include/plat/arm/common/plat_arm.h
@@ -131,6 +131,8 @@
 
 /* Security utility functions */
 void arm_tzc400_setup(void);
+struct tzc_dmc500_driver_data;
+void arm_tzc_dmc500_setup(struct tzc_dmc500_driver_data *plat_driver_data);
 
 /* Systimer utility function */
 void arm_configure_sys_timer(void);