diff --git a/include/plat/arm/common/plat_arm.h b/include/plat/arm/common/plat_arm.h
index d060332..6c0d91d 100644
--- a/include/plat/arm/common/plat_arm.h
+++ b/include/plat/arm/common/plat_arm.h
@@ -297,6 +297,7 @@
 void plat_arm_program_trusted_mailbox(uintptr_t address);
 bool plat_arm_bl1_fwu_needed(void);
 __dead2 void plat_arm_error_handler(int err);
+__dead2 void plat_arm_system_reset(void);
 
 /*
  * Optional functions in ARM standard platforms
diff --git a/include/plat/common/plat_drtm.h b/include/plat/common/plat_drtm.h
index e9b8d6a..754fa1a 100644
--- a/include/plat/common/plat_drtm.h
+++ b/include/plat/common/plat_drtm.h
@@ -60,4 +60,8 @@
 uint64_t plat_drtm_get_imp_def_dlme_region_size(void);
 uint64_t plat_drtm_get_tcb_hash_features(void);
 
+/* DRTM error handling functions */
+int plat_set_drtm_error(uint64_t error_code);
+int plat_get_drtm_error(uint64_t *error_code);
+
 #endif /* PLAT_DRTM_H */
diff --git a/include/plat/common/platform.h b/include/plat/common/platform.h
index 58e08d4..c90441c 100644
--- a/include/plat/common/platform.h
+++ b/include/plat/common/platform.h
@@ -128,6 +128,7 @@
 void plat_crash_console_flush(void);
 void plat_error_handler(int err) __dead2;
 void plat_panic_handler(void) __dead2;
+void plat_system_reset(void) __dead2;
 const char *plat_log_get_prefix(unsigned int log_level);
 void bl2_plat_preload_setup(void);
 int plat_try_next_boot_source(void);