arch/arm64/boot/dts/amlogic/meson-gxl-s905d-p230.dts

Source file repositories/reference/linux-study-clean/arch/arm64/boot/dts/amlogic/meson-gxl-s905d-p230.dts

File Facts

System
Linux kernel
Corpus path
arch/arm64/boot/dts/amlogic/meson-gxl-s905d-p230.dts
Extension
.dts
Size
2123 bytes
Lines
110
Domain
Architecture Layer
Bucket
arch/arm64
Inferred role
Architecture Layer: configuration, schema, or hardware description
Status
atlas-only

Why This File Exists

CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.

Dependency Surface

Detected Declarations

Annotated Snippet

// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
/*
 * Copyright (c) 2016 Endless Computers, Inc.
 * Author: Carlo Caione <carlo@endlessm.com>
 */

/dts-v1/;

#include <dt-bindings/input/input.h>

#include "meson-gxl-s905d.dtsi"
#include "meson-gx-p23x-q20x.dtsi"

/ {
	compatible = "amlogic,p230", "amlogic,s905d", "amlogic,meson-gxl";
	model = "Amlogic Meson GXL (S905D) P230 Development Board";

	adc-keys {
		compatible = "adc-keys";
		io-channels = <&saradc 0>;
		io-channel-names = "buttons";
		keyup-threshold-microvolt = <1710000>;

		button-function {
			label = "Update";
			linux,code = <KEY_VENDOR>;
			press-threshold-microvolt = <10000>;
		};
	};

	gpio-keys-polled {
		compatible = "gpio-keys-polled";
		poll-interval = <100>;

		button {
			label = "power";
			linux,code = <KEY_POWER>;
			gpios = <&gpio_ao GPIOAO_2 GPIO_ACTIVE_LOW>;
		};
	};

	hdmi-connector {
		compatible = "hdmi-connector";
		type = "a";

		port {
			hdmi_connector_in: endpoint {
				remote-endpoint = <&hdmi_tx_tmds_out>;
			};
		};
	};
};

&cec_AO {
	status = "okay";
	pinctrl-0 = <&ao_cec_pins>;
	pinctrl-names = "default";
	hdmi-phandle = <&hdmi_tx>;
};

/* P230 has exclusive choice between internal or external PHY */
&ethmac {
	pinctrl-0 = <&eth_pins>;
	pinctrl-names = "default";

	/* Select external PHY by default */
	phy-handle = <&external_phy>;

	amlogic,tx-delay-ns = <2>;

Annotation

Implementation Notes