arch/arm64/boot/dts/rockchip/rk3399-sapphire.dtsi

Source file repositories/reference/linux-study-clean/arch/arm64/boot/dts/rockchip/rk3399-sapphire.dtsi

File Facts

System
Linux kernel
Corpus path
arch/arm64/boot/dts/rockchip/rk3399-sapphire.dtsi
Extension
.dtsi
Size
12751 bytes
Lines
654
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) 2017 Fuzhou Rockchip Electronics Co., Ltd.
 */

#include "dt-bindings/pwm/pwm.h"
#include "dt-bindings/input/input.h"
#include "rk3399.dtsi"

/ {
	compatible = "rockchip,rk3399-sapphire", "rockchip,rk3399";

	aliases {
		ethernet0 = &gmac;
		mmc0 = &sdmmc;
		mmc1 = &sdhci;
	};

	chosen {
		stdout-path = "serial2:1500000n8";
	};

	clkin_gmac: external-gmac-clock {
		compatible = "fixed-clock";
		clock-frequency = <125000000>;
		clock-output-names = "clkin_gmac";
		#clock-cells = <0>;
	};

	dc_12v: regulator-dc-12v {
		compatible = "regulator-fixed";
		regulator-name = "dc_12v";
		regulator-always-on;
		regulator-boot-on;
		regulator-min-microvolt = <12000000>;
		regulator-max-microvolt = <12000000>;
	};

	/*
	 * The fan power supply comes from the baseboard.
	 * For the standalone Sapphire one option is to connect a wire
	 * from  R90030 DNP R0805 pin2  to  C90002 10uF C0805 pin1 (vcc_sys).
	 */
	fan0: gpio-fan {
		#cooling-cells = <2>;
		compatible = "gpio-fan";
		gpio-fan,speed-map = <0 0>, <3000 1>;
		gpios = <&gpio1 RK_PC2 GPIO_ACTIVE_HIGH>;
		status = "okay";
	};

	keys: gpio-keys {
		compatible = "gpio-keys";
		autorepeat;

		key-power {
			debounce-interval = <100>;
			gpios = <&gpio0 RK_PA5 GPIO_ACTIVE_LOW>;
			label = "GPIO Power";
			linux,code = <KEY_POWER>;
			linux,input-type = <1>;
			pinctrl-names = "default";
			pinctrl-0 = <&pwr_btn>;
			wakeup-source;
		};
	};

	/* switched by pmic_sleep */
	vcc1v8_s3: vcca1v8_s3: regulator-vcc1v8-s3 {
		compatible = "regulator-fixed";

Annotation

Implementation Notes