arch/arm/boot/dts/allwinner/sun8i-h3-nanopi-r1.dts

Source file repositories/reference/linux-study-clean/arch/arm/boot/dts/allwinner/sun8i-h3-nanopi-r1.dts

File Facts

System
Linux kernel
Corpus path
arch/arm/boot/dts/allwinner/sun8i-h3-nanopi-r1.dts
Extension
.dts
Size
3463 bytes
Lines
170
Domain
Architecture Layer
Bucket
arch/arm
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) 2019 Igor Pecovnik <igor@armbian.com>
 * Copyright (C) 2020 Jayantajit Gogoi <jayanta.gogoi525@gmail.com>
 * Copyright (C) 2020 Yu-Tung Chang <mtwget@gmail.com>
*/

#include "sun8i-h3-nanopi.dtsi"
#include <dt-bindings/leds/common.h>

/ {
	model = "FriendlyARM NanoPi R1";
	compatible = "friendlyarm,nanopi-r1", "allwinner,sun8i-h3";

	aliases {
		serial1 = &uart1;
		ethernet0 = &emac;
		ethernet1 = &wifi;
	};

	reg_gmac_3v3: gmac-3v3 {
		compatible = "regulator-fixed";
		regulator-name = "gmac-3v3";
		regulator-min-microvolt = <3300000>;
		regulator-max-microvolt = <3300000>;
		startup-delay-us = <100000>;
		enable-active-high;
		gpio = <&pio 3 6 GPIO_ACTIVE_HIGH>; /* PD6 */
	};

	reg_vdd_cpux: gpio-regulator {
		compatible = "regulator-gpio";
		regulator-name = "vdd-cpux";
		regulator-type = "voltage";
		regulator-boot-on;
		regulator-always-on;
		regulator-min-microvolt = <1100000>;
		regulator-max-microvolt = <1300000>;
		regulator-ramp-delay = <50>;
		gpios = <&r_pio 0 6 GPIO_ACTIVE_HIGH>; /* PL6 */
		gpios-states = <0x1>;
		states = <1100000 0x0>,
			 <1300000 0x1>;
	};

	wifi_pwrseq: pwrseq {
		compatible = "mmc-pwrseq-simple";
		reset-gpios = <&r_pio 0 7 GPIO_ACTIVE_LOW>; /* PL7 */
		clocks = <&rtc CLK_OSC32K_FANOUT>;
		clock-names = "ext_clock";
	};

	leds {
		led-2 {
			function = LED_FUNCTION_WAN;
			color = <LED_COLOR_ID_GREEN>;
			gpios = <&pio 6 11 GPIO_ACTIVE_HIGH>; /* PG11 */
		};

		led-3 {
			function = LED_FUNCTION_LAN;
			color = <LED_COLOR_ID_GREEN>;
			gpios = <&pio 0 9 GPIO_ACTIVE_HIGH>; /* PA9 */
		};
	};
};

&cpu0 {
	cpu-supply = <&reg_vdd_cpux>;
};

Annotation

Implementation Notes