arch/arm64/boot/dts/rockchip/rk3568-wolfvision-pf5-io-expander.dtso

// SPDX-License-Identifier: (GPL-2.0-or-later OR MIT)
/*
 * Device tree overlay for the WolfVision PF5 IO Expander board.
 *
 * Copyright (C) 2024 WolfVision GmbH.
 */

/dts-v1/;
/plugin/;

#include <dt-bindings/clock/rk3568-cru.h>
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/interrupt-controller/irq.h>
#include <dt-bindings/pinctrl/rockchip.h>

&{/} {
	gmac0_clkin: external-gmac0-clock {
		compatible = "fixed-clock";
		clock-frequency = <50000000>;
		clock-output-names = "gmac0_clkin";
		#clock-cells = <0>;
	};

	usb_host_vbus: usb-host-vbus-regulator {
		compatible = "regulator-fixed";
		enable-active-high;
		gpio = <&gpio1 RK_PA3 GPIO_ACTIVE_HIGH>;
		pinctrl-names = "default";
		pinctrl-0 = <&usb_host_vbus_en>;
		regulator-name = "usb_host_vbus";
		regulator-min-microvolt = <5000000>;
		regulator-max-microvolt = <5000000>;
		vin-supply = <&vcc5v_in>;
	};

	vcc1v8_eth: vcc1v8-eth-regulator {
		compatible = "regulator-fixed";
		enable-active-high;
		gpio = <&gpio0 RK_PC1 GPIO_ACTIVE_HIGH>;
		pinctrl-names = "default";
		pinctrl-0 = <&vcc1v8_eth_en>;
		regulator-always-on;
		regulator-boot-on;
		regulator-name = "1v8_eth";
		regulator-min-microvolt = <1800000>;
		regulator-max-microvolt = <1800000>;
		vin-supply = <&vcc3v3_sys>;
	};

	vcc3v3_eth: vcc3v3-eth-regulator {
		compatible = "regulator-fixed";
		enable-active-low;
		gpio = <&gpio0 RK_PC0 GPIO_ACTIVE_LOW>;
		pinctrl-names = "default";
		pinctrl-0 = <&vcc3v3_eth_enn>;
		regulator-always-on;
		regulator-boot-on;
		regulator-name = "3v3_eth";
		regulator-min-microvolt = <3300000>;
		regulator-max-microvolt = <3300000>;
		vin-supply = <&vcc3v3_sys>;
	};
};

&gmac0 {
	assigned-clocks = <&cru SCLK_GMAC0_RX_TX>,
			  <&cru SCLK_GMAC0>;
	assigned-clock-parents = <&cru SCLK_GMAC0_RMII_SPEED>,
				 <&gmac0_clkin>;
	clock_in_out = "input";
	phy-handle = <&dp83826>;
	phy-mode = "rmii";
	phy-supply = <&vcc3v3_eth>;
	pinctrl-names = "default";
	pinctrl-0 = <&gmac0_miim
		     &gmac0_clkinout
		     &gmac0_rx_er
		     &gmac0_rx_bus2
		     &gmac0_tx_bus2>;
	status = "okay";
};

&mdio0 {
	#address-cells = <1>;
	#size-cells = <0>;

	dp83826: ethernet-phy@0 {
		compatible = "ethernet-phy-ieee802.3-c22";
		reg = <0x0>;
		interrupt-parent = <&gpio0>;
		interrupts = <RK_PD3 IRQ_TYPE_EDGE_FALLING>;
		pinctrl-names = "default";
		pinctrl-0 = <&eth_wake_intn &eth_phy_rstn>;
		reset-assert-us = <1000>;
		reset-deassert-us = <2000>;
		reset-gpios = <&gpio0 RK_PD4 GPIO_ACTIVE_LOW>;
		wakeup-source;
	};
};

&pinctrl {
	ethernet {
		eth_wake_intn: eth-wake-intn-pinctrl {
			rockchip,pins = <0 RK_PD3 RK_FUNC_GPIO &pcfg_pull_none>;
		};

		eth_phy_rstn: eth-phy-rstn-pinctrl {
			rockchip,pins = <0 RK_PD4 RK_FUNC_GPIO &pcfg_pull_none>;
		};

		vcc1v8_eth_en: vcc1v8-eth-en-pinctrl {
			rockchip,pins = <0 RK_PC1 RK_FUNC_GPIO &pcfg_pull_none>;
		};

		vcc3v3_eth_enn: vcc3v3-eth-enn-pinctrl {
			rockchip,pins = <0 RK_PC0 RK_FUNC_GPIO &pcfg_pull_none>;
		};
	};

	usb {
		usb_host_vbus_en: usb-host-vbus-en-pinctrl {
			rockchip,pins = <1 RK_PA3 RK_FUNC_GPIO &pcfg_pull_none>;
		};
	};
};

&usb_host1_xhci {
	maximum-speed = "high-speed";
	phys = <&usb2phy0_host>;
	phy-names = "usb2-phy";
	status = "okay";
};

&usb2phy0_host {
	phy-supply = <&usb_host_vbus>;
	status = "okay";
};