diff --git a/plat/arm/css/sgi/include/sgi_variant.h b/plat/arm/css/sgi/include/sgi_variant.h
index 223ac3e..8f9529a 100644
--- a/plat/arm/css/sgi/include/sgi_variant.h
+++ b/plat/arm/css/sgi/include/sgi_variant.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2018-2022, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2018-2023, ARM Limited and Contributors. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -22,6 +22,7 @@
 
 /* SID Version values for RD-N2 variants */
 #define RD_N2_CFG1_SID_VER_PART_NUM		0x07B6
+#define RD_N2_CFG3_SID_VER_PART_NUM		0x07F1
 
 /* SID Version values for RD-V2 */
 #define RD_V2_SID_VER_PART_NUM			0x07F2
diff --git a/plat/arm/css/sgi/sgi_bl31_setup.c b/plat/arm/css/sgi/sgi_bl31_setup.c
index 9adcb7c..df2ce38 100644
--- a/plat/arm/css/sgi/sgi_bl31_setup.c
+++ b/plat/arm/css/sgi/sgi_bl31_setup.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2018-2022, Arm Limited and Contributors. All rights reserved.
+ * Copyright (c) 2018-2023, Arm Limited and Contributors. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -80,7 +80,8 @@
 		sgi_plat_info.platform_id == RD_V1_SID_VER_PART_NUM ||
 		sgi_plat_info.platform_id == RD_N2_SID_VER_PART_NUM ||
 		sgi_plat_info.platform_id == RD_V2_SID_VER_PART_NUM ||
-		sgi_plat_info.platform_id == RD_N2_CFG1_SID_VER_PART_NUM) {
+		sgi_plat_info.platform_id == RD_N2_CFG1_SID_VER_PART_NUM ||
+		sgi_plat_info.platform_id == RD_N2_CFG3_SID_VER_PART_NUM) {
 		if (channel_id >= ARRAY_SIZE(plat_rd_scmi_info))
 			panic();
 		return &plat_rd_scmi_info[channel_id];