diff --git a/plat/arm/css/sgi/sgi_plat_v2.c b/plat/arm/css/sgi/sgi_plat_v2.c
index 1a2a966..cef5345 100644
--- a/plat/arm/css/sgi/sgi_plat_v2.c
+++ b/plat/arm/css/sgi/sgi_plat_v2.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2021, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2021-2022, ARM Limited and Contributors. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -83,6 +83,7 @@
 const mmap_region_t plat_arm_secure_partition_mmap[] = {
 	PLAT_ARM_SECURE_MAP_SYSTEMREG,
 	PLAT_ARM_SECURE_MAP_NOR2,
+	SOC_PLATFORM_SECURE_UART,
 	SOC_PLATFORM_PERIPH_MAP_DEVICE_USER,
 	ARM_SP_IMAGE_MMAP,
 	ARM_SP_IMAGE_NS_BUF_MMAP,