arch/riscv/boot/dts/spacemit/k1-orangepi-r2s.dts

Source file repositories/reference/linux-study-clean/arch/riscv/boot/dts/spacemit/k1-orangepi-r2s.dts

File Facts

System
Linux kernel
Corpus path
arch/riscv/boot/dts/spacemit/k1-orangepi-r2s.dts
Extension
.dts
Size
4795 bytes
Lines
250
Domain
Architecture Layer
Bucket
arch/riscv
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) 2025 Michael Opdenacker <michael.opdenacker@rootcommit.com>
 */

/dts-v1/;

#include "k1.dtsi"
#include "k1-pinctrl.dtsi"

/ {
	model = "OrangePi R2S";
	compatible = "xunlong,orangepi-r2s", "spacemit,k1";

	aliases {
		i2c8 = &i2c8;
		serial0 = &uart0;
		ethernet0 = &eth0;
		ethernet1 = &eth1;
	};

	chosen {
		stdout-path = "serial0";
	};

	vcc4v0: regulator-vcc4v0 {
		compatible = "regulator-fixed";
		regulator-name = "vcc4v0";
		regulator-always-on;
		regulator-boot-on;
		regulator-min-microvolt = <4000000>;
		regulator-max-microvolt = <4000000>;
	};

	vcc5v0_usb: regulator-vcc5v0-usb {
		compatible = "regulator-fixed";
		enable-active-high;
		gpios = <&gpio K1_GPIO(126) GPIO_ACTIVE_HIGH>;
		regulator-name = "vcc5v0_usb";
		regulator-min-microvolt = <5000000>;
		regulator-max-microvolt = <5000000>;
	};
};

&combo_phy {
	status = "okay";
};

&emmc {
	bus-width = <8>;
	mmc-hs400-1_8v;
	mmc-hs400-enhanced-strobe;
	non-removable;
	no-sd;
	no-sdio;
	status = "okay";
};

&eth0 {
	phy-handle = <&rgmii0>;
	phy-mode = "rgmii-id";
	pinctrl-names = "default";
	pinctrl-0 = <&gmac0_cfg>;
	rx-internal-delay-ps = <0>;
	tx-internal-delay-ps = <0>;
	status = "okay";

	mdio-bus {
		#address-cells = <0x1>;
		#size-cells = <0x0>;

Annotation

Implementation Notes