@@ -61,6 +61,7 @@ dtb-$(CONFIG_ARCH_R8A77995) += r8a77995-draak.dtb
dtb-$(CONFIG_ARCH_R8A779A0) += r8a779a0-falcon.dtb
dtb-$(CONFIG_ARCH_R8A779F0) += r8a779f0-spider.dtb
+dtb-$(CONFIG_ARCH_R8A779F0) += r8a779f4-s4sk.dtb
dtb-$(CONFIG_ARCH_R8A779G0) += r8a779g0-white-hawk.dtb
dtb-$(CONFIG_ARCH_R8A779G0) += r8a779g0-white-hawk-ard-audio-da7212.dtbo
new file mode 100644
@@ -0,0 +1,240 @@
+// SPDX-License-Identifier: (GPL-2.0 OR MIT)
+/*
+ * Device Tree Source for the R-Car S4 Starter Kit board
+ *
+ * Copyright (C) 2023 Renesas Electronics Corp.
+ */
+
+/dts-v1/;
+#include <dt-bindings/gpio/gpio.h>
+#include "r8a779f4.dtsi"
+
+/ {
+ model = "R-Car S4 Starter Kit board";
+ compatible = "renesas,s4sk", "renesas,r8a779f4", "renesas,r8a779f0";
+
+ aliases {
+ serial0 = &hscif0;
+ serial1 = &hscif1;
+ eth0 = &rswitch;
+ };
+
+ chosen {
+ bootargs = "ignore_loglevel rw root=/dev/nfs ip=on";
+ stdout-path = "serial0:921600n8";
+ };
+
+ memory@48000000 {
+ device_type = "memory";
+ /* first 128MB is reserved for secure area. */
+ /* The last 512MB is reserved for CR. */
+ reg = <0x0 0x48000000 0x0 0x58000000>;
+ };
+
+ memory@480000000 {
+ device_type = "memory";
+ reg = <0x4 0x80000000 0x0 0x80000000>;
+ };
+
+ vcc_sdhi: regulator-vcc-sdhi {
+ compatible = "regulator-fixed";
+ regulator-name = "SDHI Vcc";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ gpio = <&gpio1 24 GPIO_ACTIVE_HIGH>;
+ enable-active-high;
+ };
+};
+
+ð_serdes {
+ status = "okay";
+};
+
+&extal_clk {
+ clock-frequency = <20000000>;
+};
+
+&extalr_clk {
+ clock-frequency = <32768>;
+};
+
+&hscif0 {
+ pinctrl-0 = <&hscif0_pins>;
+ pinctrl-names = "default";
+
+ uart-has-rtscts;
+ status = "okay";
+};
+
+&hscif1 {
+ pinctrl-0 = <&hscif1_pins>;
+ pinctrl-names = "default";
+
+ uart-has-rtscts;
+ status = "okay";
+};
+
+&i2c2 {
+ pinctrl-0 = <&i2c2_pins>;
+ pinctrl-names = "default";
+
+ status = "okay";
+ clock-frequency = <400000>;
+};
+
+&i2c4 {
+ pinctrl-0 = <&i2c4_pins>;
+ pinctrl-names = "default";
+
+ status = "okay";
+ clock-frequency = <400000>;
+};
+
+&i2c5 {
+ pinctrl-0 = <&i2c5_pins>;
+ pinctrl-names = "default";
+
+ status = "okay";
+ clock-frequency = <400000>;
+
+ eeprom@50 {
+ compatible = "st,24c16", "atmel,24c16";
+ reg = <0x50>;
+ pagesize = <16>;
+ };
+};
+
+&mmc0 {
+ pinctrl-0 = <&sd_pins>;
+ pinctrl-names = "default";
+
+ vmmc-supply = <&vcc_sdhi>;
+ cd-gpios = <&gpio1 23 GPIO_ACTIVE_LOW>;
+ bus-width = <4>;
+ status = "okay";
+};
+
+&pfc {
+ pinctrl-0 = <&scif_clk_pins>;
+ pinctrl-names = "default";
+
+ hscif0_pins: hscif0 {
+ groups = "hscif0_data", "hscif0_ctrl";
+ function = "hscif0";
+ };
+
+ hscif1_pins: hscif1 {
+ groups = "hscif1_data", "hscif1_ctrl";
+ function = "hscif1";
+ };
+
+ i2c2_pins: i2c2 {
+ groups = "i2c2";
+ function = "i2c2";
+ };
+
+ i2c4_pins: i2c4 {
+ groups = "i2c4";
+ function = "i2c4";
+ };
+
+ i2c5_pins: i2c5 {
+ groups = "i2c5";
+ function = "i2c5";
+ };
+
+ scif_clk_pins: scif_clk {
+ groups = "scif_clk";
+ function = "scif_clk";
+ };
+
+ sd_pins: sd {
+ groups = "mmc_data4", "mmc_ctrl";
+ function = "mmc";
+ power-source = <3300>;
+ };
+
+ tsn0_pins: tsn0 {
+ groups = "tsn0_mdio_b", "tsn0_link_b";
+ function = "tsn0";
+ drive-strength = <18>;
+ power-source = <3300>;
+ };
+
+ tsn1_pins: tsn1 {
+ groups = "tsn1_mdio_b", "tsn1_link_b";
+ function = "tsn1";
+ drive-strength = <18>;
+ power-source = <3300>;
+ };
+};
+
+&rswitch {
+ pinctrl-0 = <&tsn0_pins>, <&tsn1_pins>;
+ pinctrl-names = "default";
+ status = "okay";
+
+ ethernet-ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+ phy-handle = <&ic99>;
+ phy-mode = "sgmii";
+ phys = <ð_serdes 0>;
+
+ mdio {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ ic99: ethernet-phy@1 {
+ reg = <1>;
+ compatible = "ethernet-phy-ieee802.3-c45";
+ interrupt-parent = <&gpio3>;
+ interrupts = <10 IRQ_TYPE_LEVEL_LOW>;
+ };
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+ phy-handle = <&ic102>;
+ phy-mode = "sgmii";
+ phys = <ð_serdes 1>;
+
+ mdio {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ ic102: ethernet-phy@2 {
+ reg = <2>;
+ compatible = "ethernet-phy-ieee802.3-c45";
+ interrupt-parent = <&gpio3>;
+ interrupts = <11 IRQ_TYPE_LEVEL_LOW>;
+ };
+ };
+ };
+
+ port@2 {
+ status = "disabled";
+ };
+ };
+};
+
+&rwdt {
+ timeout-sec = <60>;
+ status = "okay";
+};
+
+&scif_clk {
+ clock-frequency = <24000000>;
+};
+
+&ufs {
+ status = "okay";
+};
+
+&ufs30_clk {
+ clock-frequency = <38400000>;
+};