src/arm64/amlogic/meson-a1-ad402.dts

// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
/*
 * Copyright (c) 2023 SberDevices
 * Author: Dmitry Rokosov <ddrokosov@sberdevices.ru>
 */

/dts-v1/;

#include "meson-a1.dtsi"

/ {
	compatible = "amlogic,ad402", "amlogic,a1";
	model = "Amlogic Meson A1 AD402 Development Board";

	aliases {
		serial0 = &uart_AO_B;
	};

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

	memory@0 {
		device_type = "memory";
		reg = <0x0 0x0 0x0 0x8000000>;
	};

	reserved-memory {
		/* 3 MiB reserved for Amlogic Trust OS (BL32) */
		secos_reserved: secos@3d00000 {
			reg = <0x0 0x03d00000 0x0 0x300000>;
			no-map;
		};
	};

	firmware {
		optee {
			compatible = "linaro,optee-tz";
			method = "smc";
		};
	};

	battery_4v2: regulator-battery-4v2 {
		compatible = "regulator-fixed";
		regulator-name = "4V2";
		regulator-min-microvolt = <4200000>;
		regulator-max-microvolt = <4200000>;
		regulator-always-on;
	};

	vddq_1v35: regulator-vddq-1v35 {
		compatible = "regulator-fixed";
		regulator-name = "VDDQ_1V35";
		regulator-min-microvolt = <1350000>;
		regulator-max-microvolt = <1350000>;
		vin-supply = <&battery_4v2>;
		regulator-always-on;
	};

	vddao_3v3: regulator-vddao-3v3 {
		compatible = "regulator-fixed";
		regulator-name = "VDDAO_3V3";
		regulator-min-microvolt = <3300000>;
		regulator-max-microvolt = <3300000>;
		vin-supply = <&battery_4v2>;
		regulator-always-on;
	};

	vcc_3v3: regulator-vcc-3v3 {
		compatible = "regulator-fixed";
		regulator-name = "VCC_3V3";
		regulator-min-microvolt = <3300000>;
		regulator-max-microvolt = <3300000>;
		vin-supply = <&vddao_3v3>;
		regulator-always-on;
	};

	vddio_1v8: regulator-vddio-1v8 {
		compatible = "regulator-fixed";
		regulator-name = "VDDIO_1V8";
		regulator-min-microvolt = <1800000>;
		regulator-max-microvolt = <1800000>;
		vin-supply = <&vddao_3v3>;
		regulator-always-on;
	};
};

/* Bluetooth HCI H4 */
&uart_AO {
	status = "okay";
	pinctrl-0 = <&uart_a_pins>, <&uart_a_cts_rts_pins>;
	pinctrl-names = "default";
};

&uart_AO_B {
	status = "okay";
};

&saradc {
	status = "okay";
	vref-supply = <&vddio_1v8>;
};

&spifc {
	status = "okay";
	pinctrl-0 = <&spifc_pins>;
	pinctrl-names = "default";

	spi_nand@0 {
		compatible = "spi-nand";
		status = "okay";
		reg = <0>;
		spi-max-frequency = <96000000>;
		spi-tx-bus-width = <4>;
		spi-rx-bus-width = <4>;
	};
};

&usb2_phy1 {
	phy-supply = <&vcc_3v3>;
};

&usb {
	status = "okay";
	dr_mode = "peripheral";
};

&sd_emmc {
	status = "okay";

	#address-cells = <1>;
	#size-cells = <0>;

	pinctrl-0 = <&sdio_pins>;
	pinctrl-1 = <&sdio_clk_gate_pins>;
	pinctrl-names = "default", "clk-gate";

	bus-width = <4>;
	cap-sd-highspeed;
	sd-uhs-sdr104;
	max-frequency = <200000000>;
	non-removable;
	disable-wp;

	vmmc-supply = <&vddao_3v3>;
	vqmmc-supply = <&vddio_1v8>;
};