arch/riscv/boot/dts/sophgo/cv1800b.dtsi

Source file repositories/reference/linux-study-clean/arch/riscv/boot/dts/sophgo/cv1800b.dtsi

File Facts

System
Linux kernel
Corpus path
arch/riscv/boot/dts/sophgo/cv1800b.dtsi
Extension
.dtsi
Size
1229 bytes
Lines
55
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) 2023 Jisheng Zhang <jszhang@kernel.org>
 */

#define SOC_PERIPHERAL_IRQ(nr)	((nr) + 16)

#include <dt-bindings/pinctrl/pinctrl-cv1800b.h>
#include "cv180x-cpus.dtsi"
#include "cv180x.dtsi"

/ {
	compatible = "sophgo,cv1800b";

	memory@80000000 {
		device_type = "memory";
		reg = <0x80000000 0x4000000>;
	};

	soc {
		interrupt-parent = <&plic>;
		dma-noncoherent;

		pinctrl: pinctrl@3001000 {
			compatible = "sophgo,cv1800b-pinctrl";
			reg = <0x03001000 0x1000>,
			      <0x05027000 0x1000>;
			reg-names = "sys", "rtc";
		};

		clk: clock-controller@3002000 {
			compatible = "sophgo,cv1800b-clk";
			reg = <0x03002000 0x1000>;
			clocks = <&osc>;
			#clock-cells = <1>;
		};

		plic: interrupt-controller@70000000 {
			compatible = "sophgo,cv1800b-plic", "thead,c900-plic";
			reg = <0x70000000 0x4000000>;
			interrupts-extended = <&cpu0_intc 11>, <&cpu0_intc 9>;
			interrupt-controller;
			#address-cells = <0>;
			#interrupt-cells = <2>;
			riscv,ndev = <101>;
		};

		clint: timer@74000000 {
			compatible = "sophgo,cv1800b-clint", "thead,c900-clint";
			reg = <0x74000000 0x10000>;
			interrupts-extended = <&cpu0_intc 3>, <&cpu0_intc 7>;
		};
	};
};

Annotation

Implementation Notes