Anbernic RG35XX-Plus minimal DT

sun50i-h700-anbernic-rg35xx-plus.dts

// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
/*
 * Copyright (C) 2024 Arm Ltd.
 */

/dts-v1/;

#include "sun50i-h616.dtsi"

#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/interrupt-controller/arm-gic.h>

/ {
	model = "Anbernic RG35XX Plus";
	compatible = "anbernic,rg35xx-plus", "allwinner,sun50i-h618";

	aliases {
		serial0 = &uart0;
	};

	chosen {
		stdout-path = "serial0:115200n8";
	};

	reg_vcc5v: vcc5v {
		/* board wide 5V supply directly from the USB type-C input */
		compatible = "regulator-fixed";
		regulator-name = "vcc-5v";
		regulator-min-microvolt = <5000000>;
		regulator-max-microvolt = <5000000>;
		regulator-always-on;
	};

	reg_vcc3v3: vcc3v3 {
		/* placeholder 3.3V regulator for now, use AXP717 rails */
		compatible = "regulator-fixed";
		regulator-name = "vcc-3v3";
		regulator-min-microvolt = <3300000>;
		regulator-max-microvolt = <3300000>;
		regulator-always-on;
	};

	reg_vcc1v8: vcc1v8 {
		/* placeholder 1.8V regulator for now, use AXP717 rails */
		compatible = "regulator-fixed";
		regulator-name = "vcc-1v8";
		regulator-min-microvolt = <1800000>;
		regulator-max-microvolt = <1800000>;
		regulator-always-on;
	};
};

&ehci0 {
	status = "okay";
};

&mmc0 {
	vmmc-supply = <&reg_vcc3v3>;
	broken-cd;
//	cd-gpios = <&pio 5 6 GPIO_ACTIVE_LOW>;  /* PF6 */
	bus-width = <4>;
	status = "okay";
};

/* SDIO WiFi RTL8821CS, powered by CLDO4, regon=PG18, hostwake=PG15 */
&mmc1 {
	vmmc-supply = <&reg_vcc3v3>;
	vqmmc-supply = <&reg_vcc1v8>;
	bus-width = <4>;
	status = "okay";
};

/* second SD card, to be confirmed, references ALDO1 */
&mmc2 {
	vmmc-supply = <&reg_vcc3v3>;
	broken-cd;
//	cd-gpios = <&pio 4 16 GPIO_ACTIVE_LOW>;  /* PE16 */
	bus-width = <4>;
	status = "okay";
};

&ohci0 {
	status = "okay";
};

&uart0 {
	pinctrl-names = "default";
	pinctrl-0 = <&uart0_ph_pins>;
	status = "okay";
};

/* Bluetooth RTL8821CS, RST_N: PG19, BT_WAKE: PG17, BT_HOSTWAKE: PG16 */
&uart1 {
	pinctrl-names = "default";
	pinctrl-0 = <&uart1_pins>, <&uart1_rts_cts_pins>;
	status = "okay";
};

/* the AXP717 has USB type-C role switch functionality, to be implemented */
&usbotg {
	dr_mode = "host";	/* USB type-C receptable */
	status = "okay";
};

&usbphy {
	status = "okay";
};