diff --git a/plat/arm/css/sgi/include/sgi_base_platform_def.h b/plat/arm/css/sgi/include/sgi_base_platform_def.h
index 93609b9e4..9c3beb5b3 100644
--- a/plat/arm/css/sgi/include/sgi_base_platform_def.h
+++ b/plat/arm/css/sgi/include/sgi_base_platform_def.h
@@ -35,8 +35,8 @@
 # if SPM_MM
 #  define PLAT_ARM_MMAP_ENTRIES		(9  + ((CSS_SGI_CHIP_COUNT - 1) * 3))
 #  define MAX_XLAT_TABLES		(7  + ((CSS_SGI_CHIP_COUNT - 1) * 3))
-#  define PLAT_SP_IMAGE_MMAP_REGIONS	10
-#  define PLAT_SP_IMAGE_MAX_XLAT_TABLES	12
+#  define PLAT_SP_IMAGE_MMAP_REGIONS	9
+#  define PLAT_SP_IMAGE_MAX_XLAT_TABLES	11
 # else
 #  define PLAT_ARM_MMAP_ENTRIES		(5 + ((CSS_SGI_CHIP_COUNT - 1) * 3))
 #  define MAX_XLAT_TABLES		(6 + ((CSS_SGI_CHIP_COUNT - 1) * 3))
@@ -273,18 +273,4 @@
 		CSS_SGI_REMOTE_CHIP_MEM_OFFSET(n) + ARM_DRAM2_END,	\
 		ARM_TZC_NS_DRAM_S_ACCESS, PLAT_ARM_TZC_NS_DEV_ACCESS}
 
-#if SPM_MM
-
-/*
- * Stand-alone MM logs would be routed via secure UART. Define page table
- * entry for secure UART which would be common to all platforms.
- */
-#define SOC_PLATFORM_SECURE_UART	MAP_REGION_FLAT(		\
-					SOC_CSS_SEC_UART_BASE,		\
-					SOC_CSS_UART_SIZE,		\
-					MT_DEVICE | MT_RW | 		\
-					MT_SECURE | MT_USER)
-
-#endif
-
 #endif /* SGI_BASE_PLATFORM_DEF_H */
diff --git a/plat/arm/css/sgi/sgi_plat.c b/plat/arm/css/sgi/sgi_plat.c
index a0199c348..20c52e9c5 100644
--- a/plat/arm/css/sgi/sgi_plat.c
+++ b/plat/arm/css/sgi/sgi_plat.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2018-2022, Arm Limited and Contributors. All rights reserved.
+ * Copyright (c) 2018-2021, Arm Limited and Contributors. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -89,7 +89,6 @@ const mmap_region_t plat_arm_mmap[] = {
 const mmap_region_t plat_arm_secure_partition_mmap[] = {
 	PLAT_ARM_SECURE_MAP_SYSTEMREG,
 	PLAT_ARM_SECURE_MAP_NOR2,
-	SOC_PLATFORM_SECURE_UART,
 	PLAT_ARM_SECURE_MAP_DEVICE,
 	ARM_SP_IMAGE_MMAP,
 	ARM_SP_IMAGE_NS_BUF_MMAP,
diff --git a/plat/arm/css/sgi/sgi_plat_v2.c b/plat/arm/css/sgi/sgi_plat_v2.c
index cef5345cd..1a2a96629 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) 2021-2022, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2021, ARM Limited and Contributors. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -83,7 +83,6 @@ const mmap_region_t plat_arm_mmap[] = {
 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,