[PW_SID:1122113] riscv: eswin: eic7700: Add support for clocks, resets, pinctrl, HSP bus, I2C and watchdog

Documentation/devicetree/bindings/i2c/snps,designware-i2c.yaml

@@ -40,6 +40,7 @@ properties:
           - const: snps,designware-i2c
       - items:
           - enum:
+              - eswin,eic7700-i2c
               - mobileye,eyeq6lplus-i2c
               - mscc,ocelot-i2c
               - sophgo,sg2044-i2c

Documentation/devicetree/bindings/mfd/syscon.yaml

@@ -62,6 +62,7 @@ select:
           - cirrus,ep7209-syscon3
           - cnxt,cx92755-uc
           - econet,en751221-chip-scu
+          - eswin,eic7700-syscfg
           - freecom,fsg-cs2-system-controller
           - fsl,imx93-aonmix-ns-syscfg
           - fsl,imx93-wakeupmix-syscfg
@@ -175,6 +176,7 @@ properties:
               - cirrus,ep7209-syscon3
               - cnxt,cx92755-uc
               - econet,en751221-chip-scu
+              - eswin,eic7700-syscfg
               - freecom,fsg-cs2-system-controller
               - fsl,imx93-aonmix-ns-syscfg
               - fsl,imx93-wakeupmix-syscfg

arch/riscv/boot/dts/eswin/eic7700-hifive-premier-p550.dts

@@ -6,6 +6,7 @@
 /dts-v1/;
 
 #include "eic7700.dtsi"
+#include "eic7700-pinctrl.dtsi"
 
 / {
 	compatible = "sifive,hifive-premier-p550", "eswin,eic7700";
@@ -18,6 +19,171 @@
 	chosen {
 		stdout-path = "serial0:115200n8";
 	};
+
+	vcc_1v8: regulator-vcc1v8 {
+		compatible = "regulator-fixed";
+		regulator-name = "vcc1v8";
+		regulator-always-on;
+		regulator-boot-on;
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <1800000>;
+	};
+};
+
+&clock_24m {
+	clock-frequency = <24000000>;
+	clock-output-names = "clock_24m";
+};
+
+&gpio0_pins {
+	bias-disable;
+	input-enable;
+};
+
+&gpio5_pins {
+	bias-disable;
+	input-enable;
+};
+
+&gpio11_pins {
+	bias-disable;
+	input-enable;
+};
+
+&gpio14_pins {
+	bias-pull-up;
+	input-disable;
+};
+
+&gpio15_pins {
+	bias-disable;
+	input-enable;
+};
+
+&gpio28_pins {
+	bias-disable;
+	input-enable;
+};
+
+&gpio43_pins {
+	bias-disable;
+	input-disable;
+};
+
+&gpio71_pins {
+	bias-pull-up;
+	input-disable;
+};
+
+&gpio74_pins {
+	bias-pull-up;
+	input-disable;
+};
+
+&gpio76_pins {
+	bias-disable;
+	input-disable;
+};
+
+&gpio77_pins {
+	bias-pull-up;
+	input-disable;
+};
+
+&gpio79_pins {
+	bias-disable;
+	input-disable;
+};
+
+&gpio80_pins {
+	bias-pull-up;
+	input-disable;
+};
+
+&gpio82_pins {
+	bias-pull-up;
+	input-disable;
+};
+
+&gpio84_pins {
+	bias-disable;
+	input-disable;
+};
+
+&gpio85_pins {
+	bias-pull-up;
+	input-disable;
+};
+
+&gpio94_pins {
+	bias-disable;
+	input-disable;
+};
+
+&gpio106_pins {
+	bias-disable;
+	input-disable;
+};
+
+&gpio111_pins {
+	bias-disable;
+	input-disable;
+};
+
+&aon_i2c0 {
+	status = "okay";
+
+	eeprom@50 {
+		compatible = "atmel,24c02";
+		reg = <0x50>;
+	};
+};
+
+&aon_i2c1 {
+	status = "okay";
+
+	adc@10 {
+		compatible = "microchip,pac1934";
+		reg = <0x10>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		channel@1 {
+			reg = <0x1>;
+			shunt-resistor-micro-ohms = <1000>;
+			label = "VDD_SOM";
+		};
+
+		channel@2 {
+			reg = <0x2>;
+			shunt-resistor-micro-ohms = <1000>;
+			label = "VDD_SOC";
+		};
+
+		channel@3 {
+			reg = <0x3>;
+			shunt-resistor-micro-ohms = <1000>;
+			label = "VDD_CPU";
+		};
+
+		channel@4 {
+			reg = <0x4>;
+			shunt-resistor-micro-ohms = <1000>;
+			label = "VDD_LPDDR";
+		};
+	};
+
+	power-sensor@44 {
+		compatible = "ti,ina226";
+		reg = <0x44>;
+		#io-channel-cells = <1>;
+		label = "sys_power";
+		shunt-resistor = <1000>;
+	};
+};
+
+&pinctrl {
+	vrgmii-supply = <&vcc_1v8>;
 };
 
 &uart0 {
@@ -27,3 +193,19 @@
 &uart2 {
 	status = "okay";
 };
+
+&wdt0 {
+	status = "okay";
+};
+
+&wdt1 {
+	status = "okay";
+};
+
+&wdt2 {
+	status = "okay";
+};
+
+&wdt3 {
+	status = "okay";
+};