arch/riscv/boot/dts/sophgo/sg2042.dtsi

Source file repositories/reference/linux-study-clean/arch/riscv/boot/dts/sophgo/sg2042.dtsi

File Facts

System
Linux kernel
Corpus path
arch/riscv/boot/dts/sophgo/sg2042.dtsi
Extension
.dtsi
Size
13313 bytes
Lines
495
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) 2022 Sophgo Technology Inc. All rights reserved.
 */

/dts-v1/;
#include <dt-bindings/clock/sophgo,sg2042-clkgen.h>
#include <dt-bindings/clock/sophgo,sg2042-pll.h>
#include <dt-bindings/clock/sophgo,sg2042-rpgate.h>
#include <dt-bindings/interrupt-controller/irq.h>
#include <dt-bindings/pinctrl/pinctrl-sg2042.h>
#include <dt-bindings/reset/sophgo,sg2042-reset.h>

#include "sg2042-cpus.dtsi"

/ {
	compatible = "sophgo,sg2042";
	#address-cells = <2>;
	#size-cells = <2>;
	dma-noncoherent;

	distance-map {
		compatible = "numa-distance-map-v1";
		distance-matrix = <0 0 10>,
				  <0 1 15>,
				  <0 2 25>,
				  <0 3 30>,
				  <1 0 15>,
				  <1 1 10>,
				  <1 2 30>,
				  <1 3 25>,
				  <2 0 25>,
				  <2 1 30>,
				  <2 2 10>,
				  <2 3 15>,
				  <3 0 30>,
				  <3 1 25>,
				  <3 2 15>,
				  <3 3 10>;
	};

	aliases {
		serial0 = &uart0;
	};

	cgi_main: oscillator0 {
		compatible = "fixed-clock";
		clock-output-names = "cgi_main";
		#clock-cells = <0>;
	};

	cgi_dpll0: oscillator1 {
		compatible = "fixed-clock";
		clock-output-names = "cgi_dpll0";
		#clock-cells = <0>;
	};

	cgi_dpll1: oscillator2 {
		compatible = "fixed-clock";
		clock-output-names = "cgi_dpll1";
		#clock-cells = <0>;
	};

	soc: soc {
		compatible = "simple-bus";
		#address-cells = <2>;
		#size-cells = <2>;
		interrupt-parent = <&intc>;
		ranges;

Annotation

Implementation Notes