diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
index d2f2212..f5fe327 100644
--- a/arch/arm/dts/Makefile
+++ b/arch/arm/dts/Makefile
@@ -824,6 +824,7 @@
 	r8a774e1-beacon-rzg2h-kit.dtb \
 	r8a774a1-hihope-rzg2m-u-boot.dtb \
 	r8a774b1-hihope-rzg2n-u-boot.dtb \
+	r8a774c0-ek874-u-boot.dtb \
 	r8a774e1-hihope-rzg2h-u-boot.dtb \
 	r8a77950-ulcb-u-boot.dtb \
 	r8a77950-salvator-x-u-boot.dtb \
diff --git a/arch/arm/dts/cat875.dtsi b/arch/arm/dts/cat875.dtsi
new file mode 100644
index 0000000..4a2f6fa
--- /dev/null
+++ b/arch/arm/dts/cat875.dtsi
@@ -0,0 +1,64 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Device Tree Source for the Silicon Linux sub board for CAT874 (CAT875)
+ *
+ * Copyright (C) 2021 Renesas Electronics Corp.
+ */
+
+/ {
+	model = "Silicon Linux sub board for CAT874 (CAT875)";
+
+	aliases {
+		ethernet0 = &avb;
+	};
+};
+
+&avb {
+	pinctrl-0 = <&avb_pins>;
+	pinctrl-names = "default";
+	renesas,no-ether-link;
+	phy-handle = <&phy0>;
+	status = "okay";
+
+	phy0: ethernet-phy@0 {
+		reg = <0>;
+		interrupt-parent = <&gpio2>;
+		interrupts = <21 IRQ_TYPE_LEVEL_LOW>;
+		reset-gpios = <&gpio1 20 GPIO_ACTIVE_LOW>;
+	};
+};
+
+&can0 {
+	pinctrl-0 = <&can0_pins>;
+	pinctrl-names = "default";
+	status = "okay";
+};
+
+&can1 {
+	pinctrl-0 = <&can1_pins>;
+	pinctrl-names = "default";
+	status = "okay";
+};
+
+&pciec0 {
+	status = "okay";
+};
+
+&pfc {
+	avb_pins: avb {
+		mux {
+			groups = "avb_mii";
+			function = "avb";
+		};
+	};
+
+	can0_pins: can0 {
+		groups = "can0_data";
+		function = "can0";
+	};
+
+	can1_pins: can1 {
+		groups = "can1_data";
+		function = "can1";
+	};
+};
diff --git a/arch/arm/dts/r8a774c0-cat874.dts b/arch/arm/dts/r8a774c0-cat874.dts
new file mode 100644
index 0000000..676fdef
--- /dev/null
+++ b/arch/arm/dts/r8a774c0-cat874.dts
@@ -0,0 +1,453 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Device Tree Source for the Silicon Linux RZ/G2E 96board platform (CAT874)
+ *
+ * Copyright (C) 2021 Renesas Electronics Corp.
+ */
+
+/dts-v1/;
+#include "r8a774c0.dtsi"
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/display/tda998x.h>
+
+/ {
+	model = "Silicon Linux RZ/G2E 96board platform (CAT874)";
+	compatible = "si-linux,cat874", "renesas,r8a774c0";
+
+	aliases {
+		serial0 = &scif2;
+		serial1 = &hscif2;
+	};
+
+	chosen {
+		bootargs = "ignore_loglevel rw root=/dev/nfs ip=on";
+		stdout-path = "serial0:115200n8";
+	};
+
+	hdmi-out {
+		compatible = "hdmi-connector";
+		type = "a";
+
+		port {
+			hdmi_con_out: endpoint {
+				remote-endpoint = <&tda19988_out>;
+			};
+		};
+	};
+
+	leds {
+		compatible = "gpio-leds";
+
+		led0 {
+			gpios = <&gpio5 19 GPIO_ACTIVE_HIGH>;
+			label = "LED0";
+		};
+
+		led1 {
+			gpios = <&gpio3 14 GPIO_ACTIVE_HIGH>;
+			label = "LED1";
+		};
+
+		led2 {
+			gpios = <&gpio4 10 GPIO_ACTIVE_HIGH>;
+			label = "LED2";
+		};
+
+		led3 {
+			gpios = <&gpio6 4 GPIO_ACTIVE_HIGH>;
+			label = "LED3";
+		};
+	};
+
+	memory@48000000 {
+		device_type = "memory";
+		/* first 128MB is reserved for secure area. */
+		reg = <0x0 0x48000000 0x0 0x78000000>;
+	};
+
+	reg_12p0v: regulator-12p0v {
+		compatible = "regulator-fixed";
+		regulator-name = "D12.0V";
+		regulator-min-microvolt = <12000000>;
+		regulator-max-microvolt = <12000000>;
+		regulator-boot-on;
+		regulator-always-on;
+	};
+
+	sound: sound {
+		compatible = "simple-audio-card";
+
+		simple-audio-card,name = "CAT874 HDMI sound";
+		simple-audio-card,format = "i2s";
+		simple-audio-card,bitclock-master = <&sndcpu>;
+		simple-audio-card,frame-master = <&sndcpu>;
+
+		sndcodec: simple-audio-card,codec {
+			sound-dai = <&tda19988>;
+		};
+
+		sndcpu: simple-audio-card,cpu {
+			sound-dai = <&rcar_sound>;
+		};
+	};
+
+	vcc_sdhi0: regulator-vcc-sdhi0 {
+		compatible = "regulator-fixed";
+
+		regulator-name = "SDHI0 Vcc";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		regulator-always-on;
+		regulator-boot-on;
+	};
+
+	vccq_sdhi0: regulator-vccq-sdhi0 {
+		compatible = "regulator-gpio";
+
+		regulator-name = "SDHI0 VccQ";
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <3300000>;
+
+		gpios = <&gpio3 13 GPIO_ACTIVE_HIGH>;
+		gpios-states = <1>;
+		states = <3300000 1>, <1800000 0>;
+	};
+
+	wlan_en_reg: fixedregulator {
+		compatible = "regulator-fixed";
+		regulator-name = "wlan-en-regulator";
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <1800000>;
+		startup-delay-us = <70000>;
+
+		gpio = <&gpio2 25 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+	};
+
+	x13_clk: x13 {
+		compatible = "fixed-clock";
+		#clock-cells = <0>;
+		clock-frequency = <74250000>;
+	};
+
+	connector {
+		compatible = "usb-c-connector";
+		label = "USB-C";
+		data-role = "dual";
+
+		ports {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			port@0 {
+				reg = <0>;
+				hs_ep: endpoint {
+					remote-endpoint = <&usb3_hs_ep>;
+				};
+			};
+			port@1 {
+				reg = <1>;
+				ss_ep: endpoint {
+					remote-endpoint = <&hd3ss3220_in_ep>;
+				};
+			};
+		};
+	};
+};
+
+&audio_clk_a {
+	clock-frequency = <22579200>;
+};
+
+&du {
+	pinctrl-0 = <&du_pins>;
+	pinctrl-names = "default";
+	status = "okay";
+
+	clocks = <&cpg CPG_MOD 724>,
+		 <&cpg CPG_MOD 723>,
+		 <&x13_clk>;
+	clock-names = "du.0", "du.1", "dclkin.0";
+
+	ports {
+		port@0 {
+			endpoint {
+				remote-endpoint = <&tda19988_in>;
+			};
+		};
+	};
+};
+
+&ehci0 {
+	dr_mode = "host";
+	status = "okay";
+};
+
+&extal_clk {
+	clock-frequency = <48000000>;
+};
+
+&hscif2 {
+	pinctrl-0 = <&hscif2_pins>;
+	pinctrl-names = "default";
+
+	uart-has-rtscts;
+	status = "okay";
+
+	bluetooth {
+		compatible = "ti,wl1837-st";
+		enable-gpios = <&gpio4 6 GPIO_ACTIVE_HIGH>;
+	};
+};
+
+&i2c0 {
+	status = "okay";
+	clock-frequency = <100000>;
+
+	hd3ss3220@47 {
+		compatible = "ti,hd3ss3220";
+		reg = <0x47>;
+		interrupt-parent = <&gpio6>;
+		interrupts = <3 IRQ_TYPE_LEVEL_LOW>;
+
+		ports {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			port@0 {
+				reg = <0>;
+				hd3ss3220_in_ep: endpoint {
+					remote-endpoint = <&ss_ep>;
+				};
+			};
+			port@1 {
+				reg = <1>;
+				hd3ss3220_out_ep: endpoint {
+					remote-endpoint = <&usb3_role_switch>;
+				};
+			};
+		};
+	};
+
+	tda19988: tda19988@70 {
+		compatible = "nxp,tda998x";
+		reg = <0x70>;
+		interrupt-parent = <&gpio1>;
+		interrupts = <1 IRQ_TYPE_LEVEL_LOW>;
+
+		video-ports = <0x234501>;
+
+		#sound-dai-cells = <0>;
+		audio-ports = <TDA998x_I2S 0x03>;
+		clocks = <&rcar_sound 1>;
+
+		ports {
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			port@0 {
+				reg = <0>;
+				tda19988_in: endpoint {
+					remote-endpoint = <&du_out_rgb>;
+				};
+			};
+
+			port@1 {
+				reg = <1>;
+				tda19988_out: endpoint {
+					remote-endpoint = <&hdmi_con_out>;
+				};
+			};
+		};
+	};
+};
+
+&i2c1 {
+	pinctrl-0 = <&i2c1_pins>;
+	pinctrl-names = "default";
+
+	status = "okay";
+	clock-frequency = <400000>;
+
+	rtc@32 {
+		compatible = "epson,rx8571";
+		reg = <0x32>;
+	};
+};
+
+&lvds0 {
+	status = "okay";
+
+	clocks = <&cpg CPG_MOD 727>, <&x13_clk>, <&extal_clk>;
+	clock-names = "fck", "dclkin.0", "extal";
+};
+
+&ohci0 {
+	dr_mode = "host";
+	status = "okay";
+};
+
+&pcie_bus_clk {
+	clock-frequency = <100000000>;
+};
+
+&pciec0 {
+	/* Map all possible DDR as inbound ranges */
+	dma-ranges = <0x42000000 0 0x40000000 0 0x40000000 0 0x80000000>;
+};
+
+&pfc {
+	du_pins: du {
+		groups = "du_rgb888", "du_clk_out_0", "du_sync", "du_disp",
+			 "du_clk_in_0";
+		function = "du";
+	};
+
+	hscif2_pins: hscif2 {
+		groups = "hscif2_data_a", "hscif2_ctrl_a";
+		function = "hscif2";
+	};
+
+	i2c1_pins: i2c1 {
+		groups = "i2c1_b";
+		function = "i2c1";
+	};
+
+	scif2_pins: scif2 {
+		groups = "scif2_data_a";
+		function = "scif2";
+	};
+
+	sdhi0_pins: sd0 {
+		groups = "sdhi0_data4", "sdhi0_ctrl";
+		function = "sdhi0";
+		power-source = <3300>;
+	};
+
+	sdhi0_pins_uhs: sd0_uhs {
+		groups = "sdhi0_data4", "sdhi0_ctrl";
+		function = "sdhi0";
+		power-source = <1800>;
+	};
+
+	sdhi3_pins: sd3 {
+		groups = "sdhi3_data4", "sdhi3_ctrl";
+		function = "sdhi3";
+		power-source = <1800>;
+	};
+
+	sound_clk_pins: sound_clk {
+		groups = "audio_clkout1_a";
+		function = "audio_clk";
+	};
+
+	sound_pins: sound {
+		groups = "ssi01239_ctrl", "ssi0_data";
+		function = "ssi";
+	};
+
+	usb30_pins: usb30 {
+		groups = "usb30", "usb30_id";
+		function = "usb30";
+	};
+};
+
+&rcar_sound {
+	pinctrl-0 = <&sound_pins &sound_clk_pins>;
+	pinctrl-names = "default";
+
+	/* Single DAI */
+	#sound-dai-cells = <0>;
+
+	/* audio_clkout0/1/2/3 */
+	#clock-cells = <1>;
+	clock-frequency = <11289600>;
+
+	status = "okay";
+
+	rcar_sound,dai {
+		dai0 {
+			playback = <&ssi0 &src0 &dvc0>;
+		};
+	};
+};
+
+&rwdt {
+	timeout-sec = <60>;
+	status = "okay";
+};
+
+&scif2 {
+	pinctrl-0 = <&scif2_pins>;
+	pinctrl-names = "default";
+
+	status = "okay";
+};
+
+&sdhi0 {
+	pinctrl-0 = <&sdhi0_pins>;
+	pinctrl-1 = <&sdhi0_pins_uhs>;
+	pinctrl-names = "default", "state_uhs";
+
+	vmmc-supply = <&vcc_sdhi0>;
+	vqmmc-supply = <&vccq_sdhi0>;
+	cd-gpios = <&gpio3 12 GPIO_ACTIVE_LOW>;
+	bus-width = <4>;
+	sd-uhs-sdr50;
+	sd-uhs-sdr104;
+	status = "okay";
+};
+
+&sdhi3 {
+	status = "okay";
+	pinctrl-0 = <&sdhi3_pins>;
+	pinctrl-names = "default";
+
+	vmmc-supply = <&wlan_en_reg>;
+	bus-width = <4>;
+	non-removable;
+	cap-power-off-card;
+	keep-power-in-suspend;
+
+	#address-cells = <1>;
+	#size-cells = <0>;
+	wlcore: wlcore@2 {
+		compatible = "ti,wl1837";
+		reg = <2>;
+		interrupt-parent = <&gpio1>;
+		interrupts = <0 IRQ_TYPE_LEVEL_HIGH>;
+	};
+};
+
+&usb2_phy0 {
+	renesas,no-otg-pins;
+	status = "okay";
+};
+
+&usb3_peri0 {
+	companion = <&xhci0>;
+	status = "okay";
+	usb-role-switch;
+
+	ports {
+		#address-cells = <1>;
+		#size-cells = <0>;
+		port@0 {
+			reg = <0>;
+			usb3_hs_ep: endpoint {
+				remote-endpoint = <&hs_ep>;
+			};
+		};
+		port@1 {
+			reg = <1>;
+			usb3_role_switch: endpoint {
+				remote-endpoint = <&hd3ss3220_out_ep>;
+			};
+		};
+	};
+};
+
+&xhci0 {
+	pinctrl-0 = <&usb30_pins>;
+	pinctrl-names = "default";
+
+	status = "okay";
+};
diff --git a/arch/arm/dts/r8a774c0-ek874-u-boot.dts b/arch/arm/dts/r8a774c0-ek874-u-boot.dts
new file mode 100644
index 0000000..8fa6d80
--- /dev/null
+++ b/arch/arm/dts/r8a774c0-ek874-u-boot.dts
@@ -0,0 +1,33 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Device Tree Source extras for U-Boot for the Hihope board
+ *
+ * Copyright (C) 2021 Renesas Electronisc Corporation
+ */
+
+#include "r8a774c0-ek874.dts"
+#include "r8a774c0-u-boot.dtsi"
+
+/ {
+	aliases {
+		spi0 = &rpc;
+	};
+};
+
+&rpc {
+	num-cs = <1>;
+	status = "okay";
+	spi-max-frequency = <50000000>;
+	#address-cells = <1>;
+	#size-cells = <0>;
+
+	flash0: spi-flash@0 {
+		#address-cells = <1>;
+		#size-cells = <1>;
+		compatible = "w25m512jv", "spi-flash", "jedec,spi-nor";
+		spi-max-frequency = <50000000>;
+		spi-tx-bus-width = <1>;
+		spi-rx-bus-width = <1>;
+		reg = <0>;
+	};
+};
diff --git a/arch/arm/dts/r8a774c0-ek874.dts b/arch/arm/dts/r8a774c0-ek874.dts
new file mode 100644
index 0000000..d3ab28b
--- /dev/null
+++ b/arch/arm/dts/r8a774c0-ek874.dts
@@ -0,0 +1,14 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Device Tree Source for the Silicon Linux RZ/G2E evaluation kit (EK874)
+ *
+ * Copyright (C) 2021 Renesas Electronics Corp.
+ */
+
+#include "r8a774c0-cat874.dts"
+#include "cat875.dtsi"
+
+/ {
+	model = "Silicon Linux RZ/G2E evaluation kit EK874 (CAT874 + CAT875)";
+	compatible = "si-linux,cat875", "si-linux,cat874", "renesas,r8a774c0";
+};
diff --git a/arch/arm/dts/r8a774c0-u-boot.dtsi b/arch/arm/dts/r8a774c0-u-boot.dtsi
new file mode 100644
index 0000000..af1c861
--- /dev/null
+++ b/arch/arm/dts/r8a774c0-u-boot.dtsi
@@ -0,0 +1,53 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Device Tree Source extras for U-Boot on R8A774C0 SoC
+ *
+ * Copyright (C) 2021 Renesas Electronics Corp.
+ *
+ */
+
+#include "r8a779x-u-boot.dtsi"
+
+/ {
+	soc {
+		rpc: rpc@ee200000 {
+			compatible = "renesas,rcar-gen3-rpc", "renesas,rpc-r8a774c0";
+			reg = <0 0xee200000 0 0x100>, <0 0x08000000 0 0x04000000>;
+			clocks = <&cpg CPG_MOD 917>;
+			bank-width = <2>;
+			status = "disabled";
+		};
+	};
+};
+
+/delete-node/ &can0;
+/delete-node/ &can1;
+/delete-node/ &canfd;
+/delete-node/ &pwm0;
+/delete-node/ &pwm1;
+/delete-node/ &pwm2;
+/delete-node/ &pwm3;
+/delete-node/ &pwm4;
+/delete-node/ &pwm5;
+/delete-node/ &pwm6;
+/delete-node/ &vin4;
+/delete-node/ &vin5;
+/delete-node/ &rcar_sound;
+/delete-node/ &audma0;
+/delete-node/ &sdhi1;
+/delete-node/ &sdhi3;
+/delete-node/ &vspb0;
+/delete-node/ &vspd0;
+/delete-node/ &vspd1;
+/delete-node/ &vspi0;
+/delete-node/ &fcpvb0;
+/delete-node/ &fcpvd0;
+/delete-node/ &fcpvd1;
+/delete-node/ &fcpvi0;
+/delete-node/ &csi40;
+/delete-node/ &du;
+/delete-node/ &lvds0;
+/delete-node/ &lvds1;
+/delete-node/ &hdmi_con_out;
+/delete-node/ &sound;
+/delete-node/ &tda19988;
diff --git a/arch/arm/mach-rmobile/Kconfig.64 b/arch/arm/mach-rmobile/Kconfig.64
index 28c2628..8127d33 100644
--- a/arch/arm/mach-rmobile/Kconfig.64
+++ b/arch/arm/mach-rmobile/Kconfig.64
@@ -113,6 +113,12 @@
 	help
           Support for RZG2 HiHope platform
 
+config TARGET_SILINUX_EK874
+	bool "Silicon Linux EK874 board"
+	imply R8A774C0
+	help
+          Support for Silicon Linux EK874 platform
+
 config TARGET_SALVATOR_X
 	bool "Salvator-X board"
 	imply R8A7795
@@ -148,6 +154,7 @@
 source "board/renesas/ulcb/Kconfig"
 source "board/beacon/beacon-rzg2m/Kconfig"
 source "board/hoperun/hihope-rzg2/Kconfig"
+source "board/silinux/ek874/Kconfig"
 
 config MULTI_DTB_FIT_UNCOMPRESS_SZ
 	default 0x80000 if TARGET_HIHOPE_RZG2