arch/arm/boot/dts/sunplus/sunplus-sp7021.dtsi

Source file repositories/reference/linux-study-clean/arch/arm/boot/dts/sunplus/sunplus-sp7021.dtsi

File Facts

System
Linux kernel
Corpus path
arch/arm/boot/dts/sunplus/sunplus-sp7021.dtsi
Extension
.dtsi
Size
8530 bytes
Lines
308
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
/*
 * Device Tree Source for Sunplus SP7021
 *
 * Copyright (C) 2021 Sunplus Technology Co.
 */

#include <dt-bindings/clock/sunplus,sp7021-clkc.h>
#include <dt-bindings/interrupt-controller/irq.h>
#include <dt-bindings/reset/sunplus,sp7021-reset.h>
#include <dt-bindings/pinctrl/sppctl-sp7021.h>
#include <dt-bindings/gpio/gpio.h>

#define XTAL	27000000

/ {
	compatible = "sunplus,sp7021";
	model = "Sunplus SP7021";

	clocks {
		extclk: osc0 {
			compatible = "fixed-clock";
			#clock-cells = <0>;
			clock-frequency = <XTAL>;
			clock-output-names = "extclk";
		};
	};

	soc@9c000000 {
		compatible = "simple-bus";
		#address-cells = <1>;
		#size-cells = <1>;
		ranges = <0 0x9c000000 0x400000>;
		interrupt-parent = <&intc>;

		clkc: clock-controller@4 {
			compatible = "sunplus,sp7021-clkc";
			reg = <0x4 0x28>,
			      <0x200 0x44>,
			      <0x268 0x04>;
			clocks = <&extclk>;
			#clock-cells = <1>;
		};

		intc: interrupt-controller@780 {
			compatible = "sunplus,sp7021-intc";
			reg = <0x780 0x80>, <0xa80 0x80>;
			interrupt-controller;
			#interrupt-cells = <2>;
		};

		otp: otp@af00 {
			compatible = "sunplus,sp7021-ocotp";
			reg = <0xaf00 0x34>, <0xaf80 0x58>;
			reg-names = "hb_gpio", "otprx";
			clocks = <&clkc CLK_OTPRX>;
			resets = <&rstc RST_OTPRX>;
			#address-cells = <1>;
			#size-cells = <1>;

			therm_calib: thermal-calibration@14 {
				reg = <0x14 0x3>;
			};
			disc_vol: disconnect-voltage@18 {
				reg = <0x18 0x2>;
			};
			mac_addr0: mac-address0@34 {
				reg = <0x34 0x6>;
			};
			mac_addr1: mac-address1@3a {

Annotation

Implementation Notes