diff --git a/drivers/renesas/rcar/board/board.c b/drivers/renesas/rcar/board/board.c
index cd194ff..dbbaed6 100644
--- a/drivers/renesas/rcar/board/board.c
+++ b/drivers/renesas/rcar/board/board.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2015-2020, Renesas Electronics Corporation. All rights
+ * Copyright (c) 2015-2021, Renesas Electronics Corporation. All rights
  * reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
@@ -30,9 +30,9 @@
 #define BOARD_CODE_SHIFT	(0x03)
 #define BOARD_ID_UNKNOWN	(0xFF)
 
-#define SXS_ID	{ 0x10U, 0xFFU, 0xFFU, 0xFFU, 0xFFU, 0xFFU, 0xFFU, 0xFFU }
+#define SXS_ID	{ 0x10U, 0x11U, 0xFFU, 0xFFU, 0xFFU, 0xFFU, 0xFFU, 0xFFU }
 #define SX_ID	{ 0x10U, 0x11U, 0xFFU, 0xFFU, 0xFFU, 0xFFU, 0xFFU, 0xFFU }
-#define SKP_ID	{ 0x10U, 0x10U, 0x20U, 0xFFU, 0xFFU, 0xFFU, 0xFFU, 0xFFU }
+#define SKP_ID	{ 0x10U, 0x10U, 0x20U, 0x21U, 0xFFU, 0xFFU, 0xFFU, 0xFFU }
 #define SK_ID	{ 0x10U, 0x30U, 0xFFU, 0xFFU, 0xFFU, 0xFFU, 0xFFU, 0xFFU }
 #define EB4_ID	{ 0x10U, 0xFFU, 0xFFU, 0xFFU, 0xFFU, 0xFFU, 0xFFU, 0xFFU }
 #define EB_ID	{ 0x10U, 0xFFU, 0xFFU, 0xFFU, 0xFFU, 0xFFU, 0xFFU, 0xFFU }
diff --git a/plat/renesas/rcar/platform.mk b/plat/renesas/rcar/platform.mk
index 11de559..670d499 100644
--- a/plat/renesas/rcar/platform.mk
+++ b/plat/renesas/rcar/platform.mk
@@ -245,6 +245,12 @@
 endif
 $(eval $(call add_define,RCAR_DRAM_LPDDR4_MEMCONF))
 
+# Process RCAR_DRAM_MEMRANK flag
+ifndef RCAR_DRAM_MEMRANK
+RCAR_DRAM_MEMRANK :=0
+endif
+$(eval $(call add_define,RCAR_DRAM_MEMRANK))
+
 # Process RCAR_DRAM_DDR3L_MEMCONF flag
 ifndef RCAR_DRAM_DDR3L_MEMCONF
 RCAR_DRAM_DDR3L_MEMCONF :=1