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diff --git a/arch/arm64/boot/dts/renesas/rzg2l-smarc-som.dtsi b/arch/arm64/boot/dts/renesas/rzg2l-smarc-som.dtsi
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--- /dev/null
+++ b/arch/arm64/boot/dts/renesas/rzg2l-smarc-som.dtsi
@@ -0,0 +1,358 @@
+// SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+/*
+ * Device Tree Source for the RZ/{G2L,V2L} SMARC SOM common parts
+ *
+ * Copyright (C) 2021 Renesas Electronics Corp.
+ */
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/interrupt-controller/irqc-rzg2l.h>
+#include <dt-bindings/pinctrl/rzg2l-pinctrl.h>
+
+/* SW1[2] should be at position 2/OFF to enable 64 GB eMMC */
+#define EMMC 1
+
+/*
+ * To enable uSD card on CN3,
+ * SW1[2] should be at position 3/ON.
+ * Disable eMMC by setting "#define EMMC 0" above.
+ */
+#define SDHI (!EMMC)
+
+/ {
+ aliases {
+ ethernet0 = &eth0;
+ ethernet1 = &eth1;
+ };
+
+ chosen {
+ bootargs = "ignore_loglevel rw root=/dev/nfs ip=on";
+ };
+
+ memory@48000000 {
+ device_type = "memory";
+ /* first 128MB is reserved for secure area. */
+ reg = <0x0 0x48000000 0x0 0x78000000>;
+ };
+
+ reg_1p8v: regulator-1p8v {
+ compatible = "regulator-fixed";
+ regulator-name = "fixed-1.8V";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ reg_3p3v: regulator-3p3v {
+ compatible = "regulator-fixed";
+ regulator-name = "fixed-3.3V";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ reg_1p1v: regulator-vdd-core {
+ compatible = "regulator-fixed";
+ regulator-name = "fixed-1.1V";
+ regulator-min-microvolt = <1100000>;
+ regulator-max-microvolt = <1100000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ vccq_sdhi0: regulator-vccq-sdhi0 {
+ compatible = "regulator-gpio";
+
+ regulator-name = "SDHI0 VccQ";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <3300000>;
+ states = <3300000 1>, <1800000 0>;
+ regulator-boot-on;
+ gpios = <&pinctrl RZG2L_GPIO(39, 0) GPIO_ACTIVE_HIGH>;
+ regulator-always-on;
+ };
+};
+
+&adc {
+ pinctrl-0 = <&adc_pins>;
+ pinctrl-names = "default";
+ status = "okay";
+
+ /delete-node/ channel@6;
+ /delete-node/ channel@7;
+};
+
+&eth0 {
+ pinctrl-0 = <&eth0_pins>;
+ pinctrl-names = "default";
+ phy-handle = <&phy0>;
+ phy-mode = "rgmii-id";
+ status = "okay";
+
+ phy0: ethernet-phy@7 {
+ compatible = "ethernet-phy-id0022.1640",
+ "ethernet-phy-ieee802.3-c22";
+ reg = <7>;
+ interrupt-parent = <&irqc>;
+ interrupts = <RZG2L_IRQ2 IRQ_TYPE_LEVEL_LOW>;
+ rxc-skew-psec = <2400>;
+ txc-skew-psec = <2400>;
+ rxdv-skew-psec = <0>;
+ txen-skew-psec = <0>;
+ rxd0-skew-psec = <0>;
+ rxd1-skew-psec = <0>;
+ rxd2-skew-psec = <0>;
+ rxd3-skew-psec = <0>;
+ txd0-skew-psec = <0>;
+ txd1-skew-psec = <0>;
+ txd2-skew-psec = <0>;
+ txd3-skew-psec = <0>;
+ };
+};
+
+&eth1 {
+ pinctrl-0 = <&eth1_pins>;
+ pinctrl-names = "default";
+ phy-handle = <&phy1>;
+ phy-mode = "rgmii-id";
+ status = "okay";
+
+ phy1: ethernet-phy@7 {
+ compatible = "ethernet-phy-id0022.1640",
+ "ethernet-phy-ieee802.3-c22";
+ reg = <7>;
+ interrupt-parent = <&irqc>;
+ interrupts = <RZG2L_IRQ3 IRQ_TYPE_LEVEL_LOW>;
+ rxc-skew-psec = <2400>;
+ txc-skew-psec = <2400>;
+ rxdv-skew-psec = <0>;
+ txen-skew-psec = <0>;
+ rxd0-skew-psec = <0>;
+ rxd1-skew-psec = <0>;
+ rxd2-skew-psec = <0>;
+ rxd3-skew-psec = <0>;
+ txd0-skew-psec = <0>;
+ txd1-skew-psec = <0>;
+ txd2-skew-psec = <0>;
+ txd3-skew-psec = <0>;
+ };
+};
+
+&extal_clk {
+ clock-frequency = <24000000>;
+};
+
+&gpu {
+ mali-supply = <&reg_1p1v>;
+};
+
+&ostm1 {
+ status = "okay";
+};
+
+&ostm2 {
+ status = "okay";
+};
+
+&pinctrl {
+ adc_pins: adc {
+ pinmux = <RZG2L_PORT_PINMUX(9, 0, 2)>; /* ADC_TRG */
+ };
+
+ eth0_pins: eth0 {
+ pinmux = <RZG2L_PORT_PINMUX(28, 1, 1)>, /* ET0_LINKSTA */
+ <RZG2L_PORT_PINMUX(27, 1, 1)>, /* ET0_MDC */
+ <RZG2L_PORT_PINMUX(28, 0, 1)>, /* ET0_MDIO */
+ <RZG2L_PORT_PINMUX(20, 0, 1)>, /* ET0_TXC */
+ <RZG2L_PORT_PINMUX(20, 1, 1)>, /* ET0_TX_CTL */
+ <RZG2L_PORT_PINMUX(20, 2, 1)>, /* ET0_TXD0 */
+ <RZG2L_PORT_PINMUX(21, 0, 1)>, /* ET0_TXD1 */
+ <RZG2L_PORT_PINMUX(21, 1, 1)>, /* ET0_TXD2 */
+ <RZG2L_PORT_PINMUX(22, 0, 1)>, /* ET0_TXD3 */
+ <RZG2L_PORT_PINMUX(24, 0, 1)>, /* ET0_RXC */
+ <RZG2L_PORT_PINMUX(24, 1, 1)>, /* ET0_RX_CTL */
+ <RZG2L_PORT_PINMUX(25, 0, 1)>, /* ET0_RXD0 */
+ <RZG2L_PORT_PINMUX(25, 1, 1)>, /* ET0_RXD1 */
+ <RZG2L_PORT_PINMUX(26, 0, 1)>, /* ET0_RXD2 */
+ <RZG2L_PORT_PINMUX(26, 1, 1)>, /* ET0_RXD3 */
+ <RZG2L_PORT_PINMUX(1, 0, 1)>; /* IRQ2 */
+ };
+
+ eth1_pins: eth1 {
+ pinmux = <RZG2L_PORT_PINMUX(37, 2, 1)>, /* ET1_LINKSTA */
+ <RZG2L_PORT_PINMUX(37, 0, 1)>, /* ET1_MDC */
+ <RZG2L_PORT_PINMUX(37, 1, 1)>, /* ET1_MDIO */
+ <RZG2L_PORT_PINMUX(29, 0, 1)>, /* ET1_TXC */
+ <RZG2L_PORT_PINMUX(29, 1, 1)>, /* ET1_TX_CTL */
+ <RZG2L_PORT_PINMUX(30, 0, 1)>, /* ET1_TXD0 */
+ <RZG2L_PORT_PINMUX(30, 1, 1)>, /* ET1_TXD1 */
+ <RZG2L_PORT_PINMUX(31, 0, 1)>, /* ET1_TXD2 */
+ <RZG2L_PORT_PINMUX(31, 1, 1)>, /* ET1_TXD3 */
+ <RZG2L_PORT_PINMUX(33, 1, 1)>, /* ET1_RXC */
+ <RZG2L_PORT_PINMUX(34, 0, 1)>, /* ET1_RX_CTL */
+ <RZG2L_PORT_PINMUX(34, 1, 1)>, /* ET1_RXD0 */
+ <RZG2L_PORT_PINMUX(35, 0, 1)>, /* ET1_RXD1 */
+ <RZG2L_PORT_PINMUX(35, 1, 1)>, /* ET1_RXD2 */
+ <RZG2L_PORT_PINMUX(36, 0, 1)>, /* ET1_RXD3 */
+ <RZG2L_PORT_PINMUX(1, 1, 1)>; /* IRQ3 */
+ };
+
+ gpio-sd0-pwr-en-hog {
+ gpio-hog;
+ gpios = <RZG2L_GPIO(4, 1) GPIO_ACTIVE_HIGH>;
+ output-high;
+ line-name = "gpio_sd0_pwr_en";
+ };
+
+ qspi0_pins: qspi0 {
+ qspi0-data {
+ pins = "QSPI0_IO0", "QSPI0_IO1", "QSPI0_IO2", "QSPI0_IO3";
+ power-source = <1800>;
+ };
+
+ qspi0-ctrl {
+ pins = "QSPI0_SPCLK", "QSPI0_SSL", "QSPI_RESET#";
+ power-source = <1800>;
+ };
+ };
+
+ /*
+ * SD0 device selection is XOR between GPIO_SD0_DEV_SEL and SW1[2]
+ * The below switch logic can be used to select the device between
+ * eMMC and microSD, after setting GPIO_SD0_DEV_SEL to high in DT.
+ * SW1[2] should be at position 2/OFF to enable 64 GB eMMC
+ * SW1[2] should be at position 3/ON to enable uSD card CN3
+ */
+ sd0-dev-sel-hog {
+ gpio-hog;
+ gpios = <RZG2L_GPIO(41, 1) GPIO_ACTIVE_HIGH>;
+ output-high;
+ line-name = "sd0_dev_sel";
+ };
+
+ sdhi0_emmc_pins: sd0emmc {
+ sd0_emmc_data {
+ pins = "SD0_DATA0", "SD0_DATA1", "SD0_DATA2", "SD0_DATA3",
+ "SD0_DATA4", "SD0_DATA5", "SD0_DATA6", "SD0_DATA7";
+ power-source = <1800>;
+ };
+
+ sd0_emmc_ctrl {
+ pins = "SD0_CLK", "SD0_CMD";
+ power-source = <1800>;
+ };
+
+ sd0_emmc_rst {
+ pins = "SD0_RST#";
+ power-source = <1800>;
+ };
+ };
+
+ sdhi0_pins: sd0 {
+ sd0_data {
+ pins = "SD0_DATA0", "SD0_DATA1", "SD0_DATA2", "SD0_DATA3";
+ power-source = <3300>;
+ };
+
+ sd0_ctrl {
+ pins = "SD0_CLK", "SD0_CMD";
+ power-source = <3300>;
+ };
+
+ sd0_mux {
+ pinmux = <RZG2L_PORT_PINMUX(47, 0, 2)>; /* SD0_CD */
+ };
+ };
+
+ sdhi0_pins_uhs: sd0_uhs {
+ sd0_data_uhs {
+ pins = "SD0_DATA0", "SD0_DATA1", "SD0_DATA2", "SD0_DATA3";
+ power-source = <1800>;
+ };
+
+ sd0_ctrl_uhs {
+ pins = "SD0_CLK", "SD0_CMD";
+ power-source = <1800>;
+ };
+
+ sd0_mux_uhs {
+ pinmux = <RZG2L_PORT_PINMUX(47, 0, 2)>; /* SD0_CD */
+ };
+ };
+};
+
+&sbc {
+ pinctrl-0 = <&qspi0_pins>;
+ pinctrl-names = "default";
+ status = "okay";
+
+ flash@0 {
+ compatible = "micron,mt25qu512a", "jedec,spi-nor";
+ reg = <0>;
+ m25p,fast-read;
+ spi-max-frequency = <50000000>;
+ spi-rx-bus-width = <4>;
+
+ partitions {
+ compatible = "fixed-partitions";
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ boot@0 {
+ reg = <0x00000000 0x2000000>;
+ read-only;
+ };
+ user@2000000 {
+ reg = <0x2000000 0x2000000>;
+ };
+ };
+ };
+};
+
+#if SDHI
+&sdhi0 {
+ pinctrl-0 = <&sdhi0_pins>;
+ pinctrl-1 = <&sdhi0_pins_uhs>;
+ pinctrl-names = "default", "state_uhs";
+
+ vmmc-supply = <&reg_3p3v>;
+ vqmmc-supply = <&vccq_sdhi0>;
+ bus-width = <4>;
+ sd-uhs-sdr50;
+ sd-uhs-sdr104;
+ status = "okay";
+};
+#endif
+
+#if EMMC
+&sdhi0 {
+ pinctrl-0 = <&sdhi0_emmc_pins>;
+ pinctrl-1 = <&sdhi0_emmc_pins>;
+ pinctrl-names = "default", "state_uhs";
+
+ vmmc-supply = <&reg_3p3v>;
+ vqmmc-supply = <&reg_1p8v>;
+ bus-width = <8>;
+ mmc-hs200-1_8v;
+ non-removable;
+ fixed-emmc-driver-type = <1>;
+ status = "okay";
+};
+#endif
+
+&wdt0 {
+ status = "okay";
+ timeout-sec = <60>;
+};
+
+&wdt1 {
+ status = "okay";
+ timeout-sec = <60>;
+};
+
+&wdt2 {
+ status = "okay";
+ timeout-sec = <60>;
+};