diff --git a/drivers/renesas/common/ddr/ddr_b/boot_init_dram.c b/drivers/renesas/common/ddr/ddr_b/boot_init_dram.c
index ac83c9a..4eb8282 100644
--- a/drivers/renesas/common/ddr/ddr_b/boot_init_dram.c
+++ b/drivers/renesas/common/ddr/ddr_b/boot_init_dram.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2015-2020, Renesas Electronics Corporation.
+ * Copyright (c) 2015-2021, Renesas Electronics Corporation.
  * All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
@@ -36,6 +36,8 @@
 #define RCAR_E3		3	/* NON */
 #define RCAR_H3N	4
 
+#define RZ_G2M		100U
+
 #define RCAR_CUT_10	0
 #define RCAR_CUT_11	1
 #define RCAR_CUT_20	10
@@ -51,7 +53,7 @@
 #else
 #if (RCAR_LSI == RCAR_H3)
 static const uint32_t prr_product = PRR_PRODUCT_H3;
-#elif(RCAR_LSI == RCAR_M3)
+#elif(RCAR_LSI == RCAR_M3 || RCAR_LSI == RZ_G2M)
 static const uint32_t prr_product = PRR_PRODUCT_M3;
 #elif(RCAR_LSI == RCAR_M3N)
 static const uint32_t prr_product = PRR_PRODUCT_M3N;
diff --git a/drivers/renesas/common/ddr/ddr_b/boot_init_dram_config.c b/drivers/renesas/common/ddr/ddr_b/boot_init_dram_config.c
index de126de..4dc1fce 100644
--- a/drivers/renesas/common/ddr/ddr_b/boot_init_dram_config.c
+++ b/drivers/renesas/common/ddr/ddr_b/boot_init_dram_config.c
@@ -1,11 +1,19 @@
 /*
- * Copyright (c) 2015-2020, Renesas Electronics Corporation.
+ * Copyright (c) 2015-2021, Renesas Electronics Corporation.
  * All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
 
+#ifndef RZG_SOC
+#define RZG_SOC		0
+#endif
+
+#if (RZG_SOC == 1)
+#define BOARDNUM 2
+#else
 #define BOARDNUM 22
+#endif /* RZG_SOC == 1 */
 #define BOARD_JUDGE_AUTO
 
 #ifdef BOARD_JUDGE_AUTO
@@ -66,6 +74,108 @@
 	0x000F,\
 	0x010F}
 
+#if (RZG_SOC == 1)
+static const struct _boardcnf boardcnfs[BOARDNUM] = {
+	{
+/* boardcnf[0] HopeRun HiHope RZ/G2M 16Gbit/1rank/2ch board with G2M SoC */
+	 .phyvalid = 0x03U,
+	 .dbi_en = 0x01U,
+	 .cacs_dly = 0x02c0U,
+	 .cacs_dly_adj = 0x0U,
+	 .dqdm_dly_w = 0x0300U,
+	 .dqdm_dly_r = 0x00a0U,
+	 .ch = {
+		{
+		 { 0x04U, 0xffU },
+		 0x00345201UL,
+		 0x3201U,
+		 { 0x01672543U, 0x45361207U, 0x45632107U, 0x60715234U },
+		 { 0x08U, 0x08U, 0x08U, 0x08U },
+		 WDQLVL_PAT,
+		 { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
+		 { 0, 0, 0, 0 },
+		 { 0, 0, 0, 0, 0, 0, 0, 0,
+		   0, 0, 0, 0, 0, 0, 0, 0,
+		   0, 0, 0, 0, 0, 0, 0, 0,
+		   0, 0, 0, 0, 0, 0, 0, 0 },
+		 { 0, 0, 0, 0 },
+		 { 0, 0, 0, 0, 0, 0, 0, 0,
+		   0, 0, 0, 0, 0, 0, 0, 0,
+		   0, 0, 0, 0, 0, 0, 0, 0,
+		   0, 0, 0, 0, 0, 0, 0, 0 }
+		},
+		{
+		 { 0x04U, 0xffU },
+		 0x00302154UL,
+		 0x2310U,
+		 { 0x01672543U, 0x45361207U, 0x45632107U, 0x60715234U },
+		 { 0x08U, 0x08U, 0x08U, 0x08U },
+		 WDQLVL_PAT,
+		 { 0, 0, 0, 0, 0, 0, 0, 0,  0, 0 },
+		 { 0, 0, 0, 0 },
+		 { 0, 0, 0, 0, 0, 0, 0, 0,
+		   0, 0, 0, 0, 0, 0, 0, 0,
+		   0, 0, 0, 0, 0, 0, 0, 0,
+		   0, 0, 0, 0, 0, 0, 0, 0 },
+		 { 0, 0, 0, 0 },
+		 { 0, 0, 0, 0, 0, 0, 0, 0,
+		   0, 0, 0, 0, 0, 0, 0, 0,
+		   0, 0, 0, 0, 0, 0, 0, 0,
+		   0, 0, 0, 0, 0, 0, 0, 0 }
+		}
+		}
+	},
+/* boardcnf[1] HopeRun HiHope RZ/G2M 8Gbit/2rank/2ch board with G2M SoC */
+	{
+	 0x03U,
+	 0x01U,
+	 0x02c0U,
+	 0x0U,
+	 0x0300U,
+	 0x00a0U,
+	{
+		{
+		 { 0x02U, 0x02U },
+		 0x00345201UL,
+		 0x3201U,
+		 { 0x01672543U, 0x45361207U, 0x45632107U, 0x60715234U },
+		 { 0x08U, 0x08U, 0x08U, 0x08U },
+		 WDQLVL_PAT,
+		 { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
+		 { 0, 0, 0, 0 },
+		 { 0, 0, 0, 0, 0, 0, 0, 0,
+		   0, 0, 0, 0, 0, 0, 0, 0,
+		   0, 0, 0, 0, 0, 0, 0, 0,
+		   0, 0, 0, 0, 0, 0, 0, 0 },
+		 { 0, 0, 0, 0 },
+		 { 0, 0, 0, 0, 0, 0, 0, 0,
+		   0, 0, 0, 0, 0, 0, 0, 0,
+		   0, 0, 0, 0, 0, 0, 0, 0,
+		   0, 0, 0, 0, 0, 0, 0, 0 }
+		},
+		{
+		 { 0x02U, 0x02U },
+		 0x00302154UL,
+		 0x2310,
+		 { 0x01672543U, 0x45361207U, 0x45632107U, 0x60715234U },
+		 { 0x08U, 0x08U, 0x08U, 0x08U },
+		 WDQLVL_PAT,
+		 { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
+		 { 0, 0, 0, 0 },
+		 { 0, 0, 0, 0, 0, 0, 0, 0,
+		   0, 0, 0, 0, 0, 0, 0, 0,
+		   0, 0, 0, 0, 0, 0, 0, 0,
+		   0, 0, 0, 0, 0, 0, 0, 0 },
+		{ 0, 0, 0, 0 },
+		{ 0, 0, 0, 0, 0, 0, 0, 0,
+		  0, 0, 0, 0, 0, 0, 0, 0,
+		  0, 0, 0, 0, 0, 0, 0, 0,
+		  0, 0, 0, 0, 0, 0, 0, 0 }
+		}
+	}
+	}
+};
+#else
 static const struct _boardcnf boardcnfs[BOARDNUM] = {
 	{
 /* boardcnf[0] RENESAS SALVATOR-X board with M3-W/SIP */
@@ -1535,6 +1645,7 @@
 	}
 	}
 };
+#endif /* RZG_SOC == 1 */
 
 void boardcnf_get_brd_clk(uint32_t brd, uint32_t *clk, uint32_t *div)
 {
@@ -1636,7 +1747,7 @@
 #define GPIO_INDT5	0xE605500CU
 #define GPIO_GPSR6	0xE6060118U
 
-#if (RCAR_GEN3_ULCB == 0)
+#if (RCAR_GEN3_ULCB == 0) && (RZG_SOC == 0)
 static void pfc_write_and_poll(uint32_t a, uint32_t v)
 {
 	mmio_write_32(PFC_PMMR, ~v);
@@ -1652,7 +1763,7 @@
 #define RCAR_GEN3_ULCB		0
 #endif
 
-#if (RCAR_GEN3_ULCB == 0)	/* non Starter Kit */
+#if (RCAR_GEN3_ULCB == 0) && (RZG_SOC == 0)	/* non Starter Kit */
 
 static uint32_t opencheck_SSI_WS6(void)
 {
@@ -1709,9 +1820,37 @@
 
 #endif
 
+#if (RZG_SOC == 1)
+#define LPDDR4_2RANK   (0x01U << 25U)
+
+static uint32_t rzg2_board_judge(void)
+{
+	uint32_t brd;
+
+	switch (prr_product) {
+	case PRR_PRODUCT_M3:
+		brd = 1U;
+		if ((mmio_read_32(PRR) & PRR_CUT_MASK) != RCAR_M3_CUT_VER11) {
+			if ((mmio_read_32(GPIO_INDT5) & LPDDR4_2RANK) == 0U) {
+				brd = 0U;
+			}
+		}
+		break;
+	default:
+		brd = 99U;
+	}
+
+	return brd;
+}
+#endif /* RZG_SOC == 1 */
+
 static uint32_t _board_judge(void)
 {
 	uint32_t brd;
+
+#if (RZG_SOC == 1)
+	brd = rzg2_board_judge();
+#else
 #if (RCAR_GEN3_ULCB == 1)
 	/* Starter Kit */
 	if (prr_product == PRR_PRODUCT_H3) {
@@ -1798,6 +1937,7 @@
 		}
 	}
 #endif
+#endif /* RZG_SOC == 1 */
 
 	return brd;
 }