diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index b13df8dd2660..1aaf8439c158 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -847,6 +847,7 @@ dtb-$(CONFIG_ARCH_RENESAS) += \
 	r7s72100-genmai.dtb \
 	r7s72100-gr-peach.dtb \
 	r7s72100-rskrza1.dtb \
+	r7s9210-rza2mevb.dtb \
 	r8a73a4-ape6evm.dtb \
 	r8a7740-armadillo800eva.dtb \
 	r8a7743-iwg20d-q7.dtb \
diff --git a/arch/arm/boot/dts/r7s9210-rza2mevb.dts b/arch/arm/boot/dts/r7s9210-rza2mevb.dts
new file mode 100644
index 000000000000..991e09de1219
--- /dev/null
+++ b/arch/arm/boot/dts/r7s9210-rza2mevb.dts
@@ -0,0 +1,82 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Device Tree Source for the RZA2MEVB board
+ *
+ * Copyright (C) 2018 Renesas Electronics
+ *
+ */
+
+/dts-v1/;
+#include "r7s9210.dtsi"
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/pinctrl/r7s9210-pinctrl.h>
+
+/ {
+	model = "RZA2MEVB";
+	compatible = "renesas,rza2mevb", "renesas,r7s9210";
+
+	aliases {
+		serial0 = &scif4;
+	};
+
+	chosen {
+		bootargs = "ignore_loglevel";
+		stdout-path = "serial0:115200n8";
+	};
+
+	memory@40000000 {
+		device_type = "memory";
+		reg = <0x40000000 0x00800000>;	 /* HyperRAM */
+	};
+
+	lbsc {
+		#address-cells = <1>;
+		#size-cells = <1>;
+	};
+
+	leds {
+		compatible = "gpio-leds";
+
+		red {
+			gpios = <&pinctrl RZA2_PIN(PORT6, 0) GPIO_ACTIVE_HIGH>;
+		};
+		green {
+			gpios = <&pinctrl RZA2_PIN(PORTC, 1) GPIO_ACTIVE_HIGH>;
+		};
+	};
+};
+
+/* EXTAL */
+&extal_clk {
+	clock-frequency = <24000000>;	/* 24MHz */
+};
+
+/* RTC_X1 */
+&rtc_x1_clk {
+	clock-frequency = <32768>;
+};
+
+&pinctrl {
+	/* Serial Console */
+	scif4_pins: serial4 {
+		pinmux = <RZA2_PINMUX(PORT9, 0, 4)>,	/* TxD4 */
+			 <RZA2_PINMUX(PORT9, 1, 4)>;	/* RxD4 */
+	};
+};
+
+/* High resolution System tick timers */
+&ostm0 {
+	status = "okay";
+};
+
+&ostm1 {
+	status = "okay";
+};
+
+/* Serial Console */
+&scif4 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&scif4_pins>;
+
+	status = "okay";
+};
diff --git a/arch/arm/boot/dts/r7s9210.dtsi b/arch/arm/boot/dts/r7s9210.dtsi
new file mode 100644
index 000000000000..22baa96f5974
--- /dev/null
+++ b/arch/arm/boot/dts/r7s9210.dtsi
@@ -0,0 +1,218 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Device Tree Source for the R7S9210 SoC
+ *
+ * Copyright (C) 2018 Renesas Electronics Corporation
+ *
+ */
+
+#include <dt-bindings/interrupt-controller/arm-gic.h>
+#include <dt-bindings/clock/r7s9210-cpg-mssr.h>
+
+/ {
+	compatible = "renesas,r7s9210";
+	interrupt-parent = <&gic>;
+	#address-cells = <1>;
+	#size-cells = <1>;
+
+	/* External clocks */
+	extal_clk: extal {
+		#clock-cells = <0>;
+		compatible = "fixed-clock";
+		/* Value must be set by board */
+		clock-frequency = <0>;
+	};
+
+	rtc_x1_clk: rtc_x1 {
+		#clock-cells = <0>;
+		compatible = "fixed-clock";
+		/* If clk present, value (32678) must be set by board */
+		clock-frequency = <0>;
+	};
+
+	cpus {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		cpu@0 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a9";
+			reg = <0>;
+			clock-frequency = <528000000>;
+			next-level-cache = <&L2>;
+		};
+	};
+
+	soc {
+		compatible = "simple-bus";
+		interrupt-parent = <&gic>;
+
+		#address-cells = <1>;
+		#size-cells = <1>;
+		ranges;
+
+		L2: cache-controller@1f003000 {
+			compatible = "arm,pl310-cache";
+			reg = <0x1f003000 0x1000>;
+			interrupts = <GIC_SPI 12 IRQ_TYPE_LEVEL_HIGH>;
+			arm,early-bresp-disable;
+			arm,full-line-zero-disable;
+			cache-unified;
+			cache-level = <2>;
+		};
+
+		scif0: serial@e8007000 {
+			compatible = "renesas,scif-r7s9210";
+			reg = <0xe8007000 0x18>;
+			interrupts = <GIC_SPI 265 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 266 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 267 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 265 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 268 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 268 IRQ_TYPE_LEVEL_HIGH>;
+			interrupt-names = "eri", "rxi", "txi",
+					  "bri", "dri", "tei";
+			clocks = <&cpg CPG_MOD 47>;
+			clock-names = "fck";
+			power-domains = <&cpg>;
+			status = "disabled";
+		};
+
+		scif1: serial@e8007800 {
+			compatible = "renesas,scif-r7s9210";
+			reg = <0xe8007800 0x18>;
+			interrupts = <GIC_SPI 271 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 272 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 273 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 271 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 274 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 274 IRQ_TYPE_LEVEL_HIGH>;
+			interrupt-names = "eri", "rxi", "txi",
+					  "bri", "dri", "tei";
+			clocks = <&cpg CPG_MOD 46>;
+			clock-names = "fck";
+			power-domains = <&cpg>;
+			status = "disabled";
+		};
+
+		scif2: serial@e8008000 {
+			compatible = "renesas,scif-r7s9210";
+			reg = <0xe8008000 0x18>;
+			interrupts = <GIC_SPI 277 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 278 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 279 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 277 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 280 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 280 IRQ_TYPE_LEVEL_HIGH>;
+			interrupt-names = "eri", "rxi", "txi",
+					  "bri", "dri", "tei";
+			clocks = <&cpg CPG_MOD 45>;
+			clock-names = "fck";
+			power-domains = <&cpg>;
+			status = "disabled";
+		};
+
+		scif3: serial@e8008800 {
+			compatible = "renesas,scif-r7s9210";
+			reg = <0xe8008800 0x18>;
+			interrupts = <GIC_SPI 283 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 284 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 285 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 283 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 286 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 286 IRQ_TYPE_LEVEL_HIGH>;
+			interrupt-names = "eri", "rxi", "txi",
+					  "bri", "dri", "tei";
+			clocks = <&cpg CPG_MOD 44>;
+			clock-names = "fck";
+			power-domains = <&cpg>;
+			status = "disabled";
+		};
+
+		scif4: serial@e8009000 {
+			compatible = "renesas,scif-r7s9210";
+			reg = <0xe8009000 0x18>;
+			interrupts = <GIC_SPI 289 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 290 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 291 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 289 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 292 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 292 IRQ_TYPE_LEVEL_HIGH>;
+			interrupt-names = "eri", "rxi", "txi",
+					  "bri", "dri", "tei";
+			clocks = <&cpg CPG_MOD 43>;
+			clock-names = "fck";
+			power-domains = <&cpg>;
+			status = "disabled";
+		};
+
+		ostm0: timer@e803b000 {
+			compatible = "renesas,r7s9210-ostm", "renesas,ostm";
+			reg = <0xe803b000 0x30>;
+			interrupts = <GIC_SPI 56 IRQ_TYPE_EDGE_RISING>;
+			clocks = <&cpg CPG_MOD 36>;
+			clock-names = "ostm0";
+			power-domains = <&cpg>;
+			status = "disabled";
+		};
+
+		ostm1: timer@e803c000 {
+			compatible = "renesas,r7s9210-ostm", "renesas,ostm";
+			reg = <0xe803c000 0x30>;
+			interrupts = <GIC_SPI 57 IRQ_TYPE_EDGE_RISING>;
+			clocks = <&cpg CPG_MOD 35>;
+			clock-names = "ostm1";
+			power-domains = <&cpg>;
+			status = "disabled";
+		};
+
+		ostm2: timer@e803d000 {
+			compatible = "renesas,r7s9210-ostm", "renesas,ostm";
+			reg = <0xe803d000 0x30>;
+			interrupts = <GIC_SPI 58 IRQ_TYPE_EDGE_RISING>;
+			clocks = <&cpg CPG_MOD 34>;
+			clock-names = "ostm2";
+			power-domains = <&cpg>;
+			status = "disabled";
+		};
+
+		gic: interrupt-controller@e8221000 {
+			compatible = "arm,gic-400";
+			#interrupt-cells = <3>;
+			#address-cells = <0>;
+			interrupt-controller;
+			reg = <0xe8221000 0x1000>,
+			      <0xe8222000 0x1000>;
+		};
+
+		cpg: clock-controller@fcfe0010 {
+			compatible = "renesas,r7s9210-cpg-mssr";
+			reg = <0xfcfe0010 0x455>;
+			clocks = <&extal_clk>;
+			clock-names = "extal";
+			#clock-cells = <2>;
+			#power-domain-cells = <0>;
+		};
+
+		wdt: watchdog@fcfe7000 {
+			compatible = "renesas,r7s9210-wdt", "renesas,rza-wdt";
+			reg = <0xfcfe7000 0x26>;
+			interrupts = <GIC_SPI 61 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&cpg CPG_CORE R7S9210_CLK_P0>;
+		};
+
+		bsid: chipid@fcfe8004 {
+			compatible = "renesas,bsid";
+			reg = <0xfcfe8004 4>;
+		};
+
+		pinctrl: pin-controller@fcffe000 {
+			compatible = "renesas,r7s9210-pinctrl";
+			reg = <0xfcffe000 0x1000>;
+
+			gpio-controller;
+			#gpio-cells = <2>;
+			gpio-ranges = <&pinctrl 0 0 176>;
+		};
+	};
+};
diff --git a/arch/arm/boot/dts/r8a7743.dtsi b/arch/arm/boot/dts/r8a7743.dtsi
index 3cc33f7ff7fe..24e6c2b67473 100644
--- a/arch/arm/boot/dts/r8a7743.dtsi
+++ b/arch/arm/boot/dts/r8a7743.dtsi
@@ -15,25 +15,6 @@
 	#address-cells = <2>;
 	#size-cells = <2>;
 
-	aliases {
-		i2c0 = &i2c0;
-		i2c1 = &i2c1;
-		i2c2 = &i2c2;
-		i2c3 = &i2c3;
-		i2c4 = &i2c4;
-		i2c5 = &i2c5;
-		i2c6 = &iic0;
-		i2c7 = &iic1;
-		i2c8 = &iic3;
-		spi0 = &qspi;
-		spi1 = &msiof0;
-		spi2 = &msiof1;
-		spi3 = &msiof2;
-		vin0 = &vin0;
-		vin1 = &vin1;
-		vin2 = &vin2;
-	};
-
 	/*
 	 * The external audio clocks are configured as 0 Hz fixed frequency
 	 * clocks by default.
@@ -154,6 +135,16 @@
 		#size-cells = <2>;
 		ranges;
 
+		rwdt: watchdog@e6020000 {
+			compatible = "renesas,r8a7743-wdt",
+				     "renesas,rcar-gen2-wdt";
+			reg = <0 0xe6020000 0 0x0c>;
+			clocks = <&cpg CPG_MOD 402>;
+			power-domains = <&sysc R8A7743_PD_ALWAYS_ON>;
+			resets = <&cpg 402>;
+			status = "disabled";
+		};
+
 		gpio0: gpio@e6050000 {
 			compatible = "renesas,gpio-r8a7743",
 				     "renesas,rcar-gen2-gpio";
@@ -310,16 +301,6 @@
 			reg = <0 0xe6160000 0 0x100>;
 		};
 
-		rwdt: watchdog@e6020000 {
-			compatible = "renesas,r8a7743-wdt",
-				     "renesas,rcar-gen2-wdt";
-			reg = <0 0xe6020000 0 0x0c>;
-			clocks = <&cpg CPG_MOD 402>;
-			power-domains = <&sysc R8A7743_PD_ALWAYS_ON>;
-			resets = <&cpg 402>;
-			status = "disabled";
-		};
-
 		sysc: system-controller@e6180000 {
 			compatible = "renesas,r8a7743-sysc";
 			reg = <0 0xe6180000 0 0x200>;
@@ -564,9 +545,7 @@
 			/* doesn't need pinmux */
 			#address-cells = <1>;
 			#size-cells = <0>;
-			compatible = "renesas,iic-r8a7743",
-				     "renesas,rcar-gen2-iic",
-				     "renesas,rmobile-iic";
+			compatible = "renesas,iic-r8a7743";
 			reg = <0 0xe60b0000 0 0x425>;
 			interrupts = <GIC_SPI 173 IRQ_TYPE_LEVEL_HIGH>;
 			clocks = <&cpg CPG_MOD 926>;
diff --git a/arch/arm/boot/dts/r8a7744.dtsi b/arch/arm/boot/dts/r8a7744.dtsi
index 04148d608fc4..fa74a262107b 100644
--- a/arch/arm/boot/dts/r8a7744.dtsi
+++ b/arch/arm/boot/dts/r8a7744.dtsi
@@ -998,6 +998,54 @@
 			status = "disabled";
 		};
 
+		msiof0: spi@e6e20000 {
+			compatible = "renesas,msiof-r8a7744",
+				     "renesas,rcar-gen2-msiof";
+			reg = <0 0xe6e20000 0 0x0064>;
+			interrupts = <GIC_SPI 156 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&cpg CPG_MOD 000>;
+			dmas = <&dmac0 0x51>, <&dmac0 0x52>,
+			       <&dmac1 0x51>, <&dmac1 0x52>;
+			dma-names = "tx", "rx", "tx", "rx";
+			power-domains = <&sysc R8A7744_PD_ALWAYS_ON>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			resets = <&cpg 000>;
+			status = "disabled";
+		};
+
+		msiof1: spi@e6e10000 {
+			compatible = "renesas,msiof-r8a7744",
+				     "renesas,rcar-gen2-msiof";
+			reg = <0 0xe6e10000 0 0x0064>;
+			interrupts = <GIC_SPI 157 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&cpg CPG_MOD 208>;
+			dmas = <&dmac0 0x55>, <&dmac0 0x56>,
+			       <&dmac1 0x55>, <&dmac1 0x56>;
+			dma-names = "tx", "rx", "tx", "rx";
+			power-domains = <&sysc R8A7744_PD_ALWAYS_ON>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			resets = <&cpg 208>;
+			status = "disabled";
+		};
+
+		msiof2: spi@e6e00000 {
+			compatible = "renesas,msiof-r8a7744",
+				     "renesas,rcar-gen2-msiof";
+			reg = <0 0xe6e00000 0 0x0064>;
+			interrupts = <GIC_SPI 158 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&cpg CPG_MOD 205>;
+			dmas = <&dmac0 0x41>, <&dmac0 0x42>,
+			       <&dmac1 0x41>, <&dmac1 0x42>;
+			dma-names = "tx", "rx", "tx", "rx";
+			power-domains = <&sysc R8A7744_PD_ALWAYS_ON>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			resets = <&cpg 205>;
+			status = "disabled";
+		};
+
 		pwm0: pwm@e6e30000 {
 			compatible = "renesas,pwm-r8a7744", "renesas,pwm-rcar";
 			reg = <0 0xe6e30000 0 0x8>;
@@ -1068,54 +1116,6 @@
 			status = "disabled";
 		};
 
-		msiof0: spi@e6e20000 {
-			compatible = "renesas,msiof-r8a7744",
-				     "renesas,rcar-gen2-msiof";
-			reg = <0 0xe6e20000 0 0x0064>;
-			interrupts = <GIC_SPI 156 IRQ_TYPE_LEVEL_HIGH>;
-			clocks = <&cpg CPG_MOD 000>;
-			dmas = <&dmac0 0x51>, <&dmac0 0x52>,
-			       <&dmac1 0x51>, <&dmac1 0x52>;
-			dma-names = "tx", "rx", "tx", "rx";
-			power-domains = <&sysc R8A7744_PD_ALWAYS_ON>;
-			#address-cells = <1>;
-			#size-cells = <0>;
-			resets = <&cpg 000>;
-			status = "disabled";
-		};
-
-		msiof1: spi@e6e10000 {
-			compatible = "renesas,msiof-r8a7744",
-				     "renesas,rcar-gen2-msiof";
-			reg = <0 0xe6e10000 0 0x0064>;
-			interrupts = <GIC_SPI 157 IRQ_TYPE_LEVEL_HIGH>;
-			clocks = <&cpg CPG_MOD 208>;
-			dmas = <&dmac0 0x55>, <&dmac0 0x56>,
-			       <&dmac1 0x55>, <&dmac1 0x56>;
-			dma-names = "tx", "rx", "tx", "rx";
-			power-domains = <&sysc R8A7744_PD_ALWAYS_ON>;
-			#address-cells = <1>;
-			#size-cells = <0>;
-			resets = <&cpg 208>;
-			status = "disabled";
-		};
-
-		msiof2: spi@e6e00000 {
-			compatible = "renesas,msiof-r8a7744",
-				     "renesas,rcar-gen2-msiof";
-			reg = <0 0xe6e00000 0 0x0064>;
-			interrupts = <GIC_SPI 158 IRQ_TYPE_LEVEL_HIGH>;
-			clocks = <&cpg CPG_MOD 205>;
-			dmas = <&dmac0 0x41>, <&dmac0 0x42>,
-			       <&dmac1 0x41>, <&dmac1 0x42>;
-			dma-names = "tx", "rx", "tx", "rx";
-			power-domains = <&sysc R8A7744_PD_ALWAYS_ON>;
-			#address-cells = <1>;
-			#size-cells = <0>;
-			resets = <&cpg 205>;
-			status = "disabled";
-		};
-
 		can0: can@e6e80000 {
 			compatible = "renesas,can-r8a7744",
 				     "renesas,rcar-gen2-can";
@@ -1589,33 +1589,6 @@
 			resets = <&cpg 408>;
 		};
 
-		vsp@fe928000 {
-			compatible = "renesas,vsp1";
-			reg = <0 0xfe928000 0 0x8000>;
-			interrupts = <GIC_SPI 267 IRQ_TYPE_LEVEL_HIGH>;
-			clocks = <&cpg CPG_MOD 131>;
-			power-domains = <&sysc R8A7744_PD_ALWAYS_ON>;
-			resets = <&cpg 131>;
-		};
-
-		vsp@fe930000 {
-			compatible = "renesas,vsp1";
-			reg = <0 0xfe930000 0 0x8000>;
-			interrupts = <GIC_SPI 246 IRQ_TYPE_LEVEL_HIGH>;
-			clocks = <&cpg CPG_MOD 128>;
-			power-domains = <&sysc R8A7744_PD_ALWAYS_ON>;
-			resets = <&cpg 128>;
-		};
-
-		vsp@fe938000 {
-			compatible = "renesas,vsp1";
-			reg = <0 0xfe938000 0 0x8000>;
-			interrupts = <GIC_SPI 247 IRQ_TYPE_LEVEL_HIGH>;
-			clocks = <&cpg CPG_MOD 127>;
-			power-domains = <&sysc R8A7744_PD_ALWAYS_ON>;
-			resets = <&cpg 127>;
-		};
-
 		pciec: pcie@fe000000 {
 			compatible = "renesas,pcie-r8a7744",
 				     "renesas,pcie-rcar-gen2";
@@ -1644,9 +1617,42 @@
 			status = "disabled";
 		};
 
+		vsp@fe928000 {
+			compatible = "renesas,vsp1";
+			reg = <0 0xfe928000 0 0x8000>;
+			interrupts = <GIC_SPI 267 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&cpg CPG_MOD 131>;
+			power-domains = <&sysc R8A7744_PD_ALWAYS_ON>;
+			resets = <&cpg 131>;
+		};
+
+		vsp@fe930000 {
+			compatible = "renesas,vsp1";
+			reg = <0 0xfe930000 0 0x8000>;
+			interrupts = <GIC_SPI 246 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&cpg CPG_MOD 128>;
+			power-domains = <&sysc R8A7744_PD_ALWAYS_ON>;
+			resets = <&cpg 128>;
+		};
+
+		vsp@fe938000 {
+			compatible = "renesas,vsp1";
+			reg = <0 0xfe938000 0 0x8000>;
+			interrupts = <GIC_SPI 247 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&cpg CPG_MOD 127>;
+			power-domains = <&sysc R8A7744_PD_ALWAYS_ON>;
+			resets = <&cpg 127>;
+		};
+
 		du: display@feb00000 {
-			reg = <0 0xfeb00000 0 0x40000>,
-			      <0 0xfeb90000 0 0x1c>;
+			compatible = "renesas,du-r8a7744";
+			reg = <0 0xfeb00000 0 0x40000>;
+			interrupts = <GIC_SPI 256 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 268 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&cpg CPG_MOD 724>,
+				 <&cpg CPG_MOD 723>;
+			clock-names = "du.0", "du.1";
+			status = "disabled";
 
 			ports {
 				#address-cells = <1>;
@@ -1660,10 +1666,36 @@
 				port@1 {
 					reg = <1>;
 					du_out_lvds0: endpoint {
+						remote-endpoint = <&lvds0_in>;
+					};
+				};
+			};
+		};
+
+		lvds0: lvds@feb90000 {
+			compatible = "renesas,r8a7744-lvds";
+			reg = <0 0xfeb90000 0 0x1c>;
+			clocks = <&cpg CPG_MOD 726>;
+			power-domains = <&sysc R8A7744_PD_ALWAYS_ON>;
+			resets = <&cpg 726>;
+			status = "disabled";
+
+			ports {
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				port@0 {
+					reg = <0>;
+					lvds0_in: endpoint {
+						remote-endpoint = <&du_out_lvds0>;
+					};
+				};
+				port@1 {
+					reg = <1>;
+					lvds0_out: endpoint {
 					};
 				};
 			};
-			/* placeholder */
 		};
 
 		prr: chipid@ff000044 {
diff --git a/arch/arm/boot/dts/r8a77470-iwg23s-sbc.dts b/arch/arm/boot/dts/r8a77470-iwg23s-sbc.dts
index 40b7f98d6013..77d18242ef59 100644
--- a/arch/arm/boot/dts/r8a77470-iwg23s-sbc.dts
+++ b/arch/arm/boot/dts/r8a77470-iwg23s-sbc.dts
@@ -84,12 +84,30 @@
 	clock-frequency = <20000000>;
 };
 
+&i2c3 {
+	pinctrl-0 = <&i2c3_pins>;
+	pinctrl-names = "default";
+
+	status = "okay";
+	clock-frequency = <400000>;
+
+	rtc@51 {
+		compatible = "nxp,pcf85263";
+		reg = <0x51>;
+	};
+};
+
 &pfc {
 	avb_pins: avb {
 		groups = "avb_mdio", "avb_gmii_tx_rx";
 		function = "avb";
 	};
 
+	i2c3_pins: i2c3 {
+		groups = "i2c3_c";
+		function = "i2c3";
+	};
+
 	mmc_pins_uhs: mmc_uhs {
 		groups = "mmc_data8", "mmc_ctrl";
 		function = "mmc";
diff --git a/arch/arm/boot/dts/r8a7778.dtsi b/arch/arm/boot/dts/r8a7778.dtsi
index 05db0ccad7a6..10d996d2941f 100644
--- a/arch/arm/boot/dts/r8a7778.dtsi
+++ b/arch/arm/boot/dts/r8a7778.dtsi
@@ -367,6 +367,30 @@
 		status = "disabled";
 	};
 
+	hscif0: serial@ffe48000 {
+		compatible = "renesas,hscif-r8a7778",
+			     "renesas,rcar-gen1-hscif", "renesas,hscif";
+		reg = <0xffe48000 96>;
+		interrupts = <GIC_SPI 118 IRQ_TYPE_LEVEL_HIGH>;
+		clocks = <&mstp0_clks R8A7778_CLK_HSCIF0>,
+			 <&cpg_clocks R8A7778_CLK_S>, <&scif_clk>;
+		clock-names = "fck", "brg_int", "scif_clk";
+		power-domains = <&cpg_clocks>;
+		status = "disabled";
+	};
+
+	hscif1: serial@ffe49000 {
+		compatible = "renesas,hscif-r8a7778",
+			     "renesas,rcar-gen1-hscif", "renesas,hscif";
+		reg = <0xffe49000 96>;
+		interrupts = <GIC_SPI 119 IRQ_TYPE_LEVEL_HIGH>;
+		clocks = <&mstp0_clks R8A7778_CLK_HSCIF1>,
+			 <&cpg_clocks R8A7778_CLK_S>, <&scif_clk>;
+		clock-names = "fck", "brg_int", "scif_clk";
+		power-domains = <&cpg_clocks>;
+		status = "disabled";
+	};
+
 	mmcif: mmc@ffe4e000 {
 		compatible = "renesas,mmcif-r8a7778", "renesas,sh-mmcif";
 		reg = <0xffe4e000 0x100>;
@@ -535,6 +559,8 @@
 				 <&cpg_clocks R8A7778_CLK_P>,
 				 <&cpg_clocks R8A7778_CLK_P>,
 				 <&cpg_clocks R8A7778_CLK_P>,
+				 <&cpg_clocks R8A7778_CLK_S>,
+				 <&cpg_clocks R8A7778_CLK_S>,
 				 <&cpg_clocks R8A7778_CLK_P>,
 				 <&cpg_clocks R8A7778_CLK_P>,
 				 <&cpg_clocks R8A7778_CLK_P>,
@@ -551,6 +577,7 @@
 				R8A7778_CLK_SCIF0 R8A7778_CLK_SCIF1
 				R8A7778_CLK_SCIF2 R8A7778_CLK_SCIF3
 				R8A7778_CLK_SCIF4 R8A7778_CLK_SCIF5
+				R8A7778_CLK_HSCIF0 R8A7778_CLK_HSCIF1
 				R8A7778_CLK_TMU0 R8A7778_CLK_TMU1
 				R8A7778_CLK_TMU2 R8A7778_CLK_SSI0
 				R8A7778_CLK_SSI1 R8A7778_CLK_SSI2
@@ -560,6 +587,7 @@
 			clock-output-names =
 				"i2c0", "i2c1", "i2c2", "i2c3", "scif0",
 				"scif1", "scif2", "scif3", "scif4", "scif5",
+				"hscif0", "hscif1",
 				"tmu0", "tmu1", "tmu2", "ssi0", "ssi1",
 				"ssi2", "ssi3", "sru", "hspi";
 		};
diff --git a/arch/arm/boot/dts/r8a7779.dtsi b/arch/arm/boot/dts/r8a7779.dtsi
index 3bc133d9489c..3ff259207527 100644
--- a/arch/arm/boot/dts/r8a7779.dtsi
+++ b/arch/arm/boot/dts/r8a7779.dtsi
@@ -287,6 +287,32 @@
 		status = "disabled";
 	};
 
+	hscif0: serial@ffe48000 {
+		compatible = "renesas,hscif-r8a7779",
+			     "renesas,rcar-gen1-hscif", "renesas,hscif";
+		reg = <0xffe48000 96>;
+		interrupts = <GIC_SPI 94 IRQ_TYPE_LEVEL_HIGH>;
+		clocks = <&mstp0_clks R8A7779_CLK_HSCIF0>,
+			 <&cpg_clocks R8A7779_CLK_S>,
+			 <&scif_clk>;
+		clock-names = "fck", "brg_int", "scif_clk";
+		power-domains = <&cpg_clocks>;
+		status = "disabled";
+	};
+
+	hscif1: serial@ffe49000 {
+		compatible = "renesas,hscif-r8a7779",
+			     "renesas,rcar-gen1-hscif", "renesas,hscif";
+		reg = <0xffe49000 96>;
+		interrupts = <GIC_SPI 95 IRQ_TYPE_LEVEL_HIGH>;
+		clocks = <&mstp0_clks R8A7779_CLK_HSCIF1>,
+			 <&cpg_clocks R8A7779_CLK_S>,
+			 <&scif_clk>;
+		clock-names = "fck", "brg_int", "scif_clk";
+		power-domains = <&cpg_clocks>;
+		status = "disabled";
+	};
+
 	pfc: pin-controller@fffc0000 {
 		compatible = "renesas,pfc-r8a7779";
 		reg = <0xfffc0000 0x23c>;
diff --git a/arch/arm/boot/dts/r8a7790-stout.dts b/arch/arm/boot/dts/r8a7790-stout.dts
index 629da4cee1b9..7a7d3b84d1a6 100644
--- a/arch/arm/boot/dts/r8a7790-stout.dts
+++ b/arch/arm/boot/dts/r8a7790-stout.dts
@@ -94,9 +94,8 @@
 	status = "okay";
 
 	clocks = <&cpg CPG_MOD 724>, <&cpg CPG_MOD 723>, <&cpg CPG_MOD 722>,
-		 <&cpg CPG_MOD 726>, <&cpg CPG_MOD 725>,
 		 <&osc1_clk>;
-	clock-names = "du.0", "du.1", "du.2", "lvds.0", "lvds.1", "dclkin.0";
+	clock-names = "du.0", "du.1", "du.2", "dclkin.0";
 
 	ports {
 		port@0 {
@@ -104,11 +103,21 @@
 				remote-endpoint = <&adv7511_in>;
 			};
 		};
+	};
+};
+
+&lvds0 {
+	ports {
 		port@1 {
 			lvds_connector0: endpoint {
 			};
 		};
-		port@2 {
+	};
+};
+
+&lvds1 {
+	ports {
+		port@1 {
 			lvds_connector1: endpoint {
 			};
 		};
diff --git a/include/dt-bindings/clock/r8a7778-clock.h b/include/dt-bindings/clock/r8a7778-clock.h
index f6b07c5399de..d0bff9ec5c66 100644
--- a/include/dt-bindings/clock/r8a7778-clock.h
+++ b/include/dt-bindings/clock/r8a7778-clock.h
@@ -30,6 +30,8 @@
 #define R8A7778_CLK_SCIF3	23
 #define R8A7778_CLK_SCIF4	22
 #define R8A7778_CLK_SCIF5	21
+#define R8A7778_CLK_HSCIF0	19
+#define R8A7778_CLK_HSCIF1	18
 #define R8A7778_CLK_TMU0	16
 #define R8A7778_CLK_TMU1	15
 #define R8A7778_CLK_TMU2	14