arch/arm64/boot/dts/rockchip/rk3399-nanopi-r4s.dtsi

Source file repositories/reference/linux-study-clean/arch/arm64/boot/dts/rockchip/rk3399-nanopi-r4s.dtsi

File Facts

System
Linux kernel
Corpus path
arch/arm64/boot/dts/rockchip/rk3399-nanopi-r4s.dtsi
Extension
.dtsi
Size
3000 bytes
Lines
199
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)
/*
 * FriendlyElec NanoPC-R4 board device tree source
 *
 * Copyright (c) 2020 FriendlyElec Computer Tech. Co., Ltd.
 * (http://www.friendlyarm.com)
 *
 * Copyright (c) 2018 Collabora Ltd.
 *
 * Copyright (c) 2020 Jensen Huang <jensenhuang@friendlyarm.com>
 * Copyright (c) 2020 Marty Jones <mj8263788@gmail.com>
 * Copyright (c) 2021 Tianling Shen <cnsztl@gmail.com>
 */

/dts-v1/;

#include "rk3399-nanopi4.dtsi"

/ {
	/delete-node/ display-subsystem;

	gpio-leds {
		pinctrl-0 = <&lan_led_pin>, <&sys_led_pin>, <&wan_led_pin>;

		/delete-node/ led-0;

		lan_led: led-lan {
			gpios = <&gpio1 RK_PA1 GPIO_ACTIVE_HIGH>;
			label = "green:lan";
		};

		sys_led: led-sys {
			gpios = <&gpio0 RK_PB5 GPIO_ACTIVE_HIGH>;
			label = "red:power";
			default-state = "on";
		};

		wan_led: led-wan {
			gpios = <&gpio1 RK_PA0 GPIO_ACTIVE_HIGH>;
			label = "green:wan";
		};
	};

	gpio-keys {
		pinctrl-0 = <&reset_button_pin>;

		/delete-node/ key-power;

		key-reset {
			debounce-interval = <50>;
			gpios = <&gpio1 RK_PC6 GPIO_ACTIVE_LOW>;
			label = "reset";
			linux,code = <KEY_RESTART>;
		};
	};

	vdd_5v: regulator-vdd-5v {
		compatible = "regulator-fixed";
		regulator-name = "vdd_5v";
		regulator-always-on;
		regulator-boot-on;
	};
};

&emmc_phy {
	status = "disabled";
};

/* No USB type-C PD power manager */
/delete-node/ &fusb0;

Annotation

Implementation Notes