arch/arm64/boot/dts/freescale/imx8dxl-evk.dts

Source file repositories/reference/linux-study-clean/arch/arm64/boot/dts/freescale/imx8dxl-evk.dts

File Facts

System
Linux kernel
Corpus path
arch/arm64/boot/dts/freescale/imx8dxl-evk.dts
Extension
.dts
Size
26341 bytes
Lines
1106
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+
/*
 * Copyright 2019~2020, 2022 NXP
 */

/dts-v1/;

#include "imx8dxl.dtsi"

/ {
	model = "Freescale i.MX8DXL EVK";
	compatible = "fsl,imx8dxl-evk", "fsl,imx8dxl";

	aliases {
		i2c2 = &i2c2;
		mmc0 = &usdhc1;
		mmc1 = &usdhc2;
		serial0 = &lpuart0;
		serial1 = &lpuart1;
		serial6 = &cm40_lpuart;
	};

	chosen {
		stdout-path = &lpuart0;
	};

	imx8dxl-cm4 {
		compatible = "fsl,imx8qxp-cm4";
		clocks = <&clk_dummy>;
		mbox-names = "tx", "rx", "rxdb";
		mboxes = <&lsio_mu5 0 1 &lsio_mu5 1 1 &lsio_mu5 3 1>;
		memory-region = <&vdevbuffer>, <&vdev0vring0>, <&vdev0vring1>,
				<&vdev1vring0>, <&vdev1vring1>, <&rsc_table>;
		power-domains = <&pd IMX_SC_R_M4_0_PID0>, <&pd IMX_SC_R_M4_0_MU_1A>;
		fsl,resource-id = <IMX_SC_R_M4_0_PID0>;
		fsl,entry-address = <0x34fe0000>;
	};


	memory@80000000 {
		device_type = "memory";
		reg = <0x00000000 0x80000000 0 0x40000000>;
	};

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

		/*
		 * Memory reserved for optee usage. Please do not use.
		 * This will be automatically added to dtb if OP-TEE is installed.
		 * optee@96000000 {
		 *     reg = <0 0x96000000 0 0x2000000>;
		 *     no-map;
		 * };
		 */

		/* global autoconfigured region for contiguous allocations */
		linux,cma {
			compatible = "shared-dma-pool";
			reusable;
			size = <0 0x14000000>;
			alloc-ranges = <0 0x98000000 0 0x14000000>;
			linux,cma-default;
		};

		vdev0vring0: memory0@90000000 {
			reg = <0 0x90000000 0 0x8000>;
			no-map;

Annotation

Implementation Notes