arch/arm64/boot/dts/ti/k3-j721e-beagleboneai64.dts

Source file repositories/reference/linux-study-clean/arch/arm64/boot/dts/ti/k3-j721e-beagleboneai64.dts

File Facts

System
Linux kernel
Corpus path
arch/arm64/boot/dts/ti/k3-j721e-beagleboneai64.dts
Extension
.dts
Size
20069 bytes
Lines
768
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
/*
 * https://beagleboard.org/ai-64
 * Copyright (C) 2022-2024 Texas Instruments Incorporated - https://www.ti.com/
 * Copyright (C) 2022-2024 Jason Kridner, BeagleBoard.org Foundation
 * Copyright (C) 2022-2024 Robert Nelson, BeagleBoard.org Foundation
 */

/dts-v1/;

#include "k3-j721e.dtsi"
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/input/input.h>
#include <dt-bindings/leds/common.h>
#include <dt-bindings/net/ti-dp83867.h>
#include <dt-bindings/phy/phy-cadence.h>

/ {
	compatible = "beagle,j721e-beagleboneai64", "ti,j721e";
	model = "BeagleBoard.org BeagleBone AI-64";

	aliases {
		serial0 = &wkup_uart0;
		serial2 = &main_uart0;
		mmc0 = &main_sdhci0;
		mmc1 = &main_sdhci1;
		i2c0 = &wkup_i2c0;
		i2c1 = &main_i2c6;
		i2c2 = &main_i2c2;
		i2c3 = &main_i2c4;
	};

	chosen {
		stdout-path = "serial2:115200n8";
	};

	memory@80000000 {
		device_type = "memory";
		/* 4G RAM */
		reg = <0x00000000 0x80000000 0x00000000 0x80000000>,
		      <0x00000008 0x80000000 0x00000000 0x80000000>;
	};

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

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

		mcu_r5fss0_core0_dma_memory_region: memory@a0000000 {
			compatible = "shared-dma-pool";
			reg = <0x00 0xa0000000 0x00 0x100000>;
			no-map;
		};

		mcu_r5fss0_core0_memory_region: memory@a0100000 {
			compatible = "shared-dma-pool";
			reg = <0x00 0xa0100000 0x00 0xf00000>;
			no-map;
		};
	};

	gpio_keys: gpio-keys {
		compatible = "gpio-keys";
		pinctrl-names = "default";
		pinctrl-0 = <&sw_pwr_pins_default>;

Annotation

Implementation Notes