arch/arm64/boot/dts/ti/k3-j722s-evm.dts

Source file repositories/reference/linux-study-clean/arch/arm64/boot/dts/ti/k3-j722s-evm.dts

File Facts

System
Linux kernel
Corpus path
arch/arm64/boot/dts/ti/k3-j722s-evm.dts
Extension
.dts
Size
19982 bytes
Lines
858
Domain
Architecture Layer
Bucket
arch/arm64
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-only OR MIT
/*
 * Device Tree file for the J722S EVM
 * Copyright (C) 2024 Texas Instruments Incorporated - https://www.ti.com/
 *
 * Schematics: https://www.ti.com/lit/zip/sprr495
 */

/dts-v1/;

#include <dt-bindings/net/ti-dp83867.h>
#include <dt-bindings/phy/phy.h>
#include "k3-j722s.dtsi"
#include "k3-serdes.h"

/ {
	compatible = "ti,j722s-evm", "ti,j722s";
	model = "Texas Instruments J722S EVM";

	aliases {
		serial0 = &wkup_uart0;
		serial2 = &main_uart0;
		serial3 = &main_uart5;
		mmc0 = &sdhci0;
		mmc1 = &sdhci1;
	};

	chosen {
		stdout-path = &main_uart0;
	};

	memory@80000000 {
		/* 8G RAM */
		reg = <0x00000000 0x80000000 0x00000000 0x80000000>,
		      <0x00000008 0x80000000 0x00000001 0x80000000>;
		device_type = "memory";
		bootph-pre-ram;
	};

	reserved_memory: reserved-memory {
		#address-cells = <2>;
		#size-cells = <2>;
		ranges;

		secure_tfa_ddr: tfa@9e780000 {
			reg = <0x00 0x9e780000 0x00 0x80000>;
			no-map;
		};

		secure_ddr: optee@9e800000 {
			reg = <0x00 0x9e800000 0x00 0x01800000>;
			no-map;
		};

		wkup_r5fss0_core0_dma_memory_region: memory@a0000000 {
			compatible = "shared-dma-pool";
			reg = <0x00 0xa0000000 0x00 0x100000>;
			no-map;
		};

		wkup_r5fss0_core0_memory_region: memory@a0100000 {
			compatible = "shared-dma-pool";
			reg = <0x00 0xa0100000 0x00 0xf00000>;
			no-map;
		};
	};

	vmain_pd: regulator-0 {
		/* TPS65988 PD CONTROLLER OUTPUT */
		compatible = "regulator-fixed";

Annotation

Implementation Notes