arch/arm64/boot/dts/freescale/imx8mm.dtsi

Source file repositories/reference/linux-study-clean/arch/arm64/boot/dts/freescale/imx8mm.dtsi

File Facts

System
Linux kernel
Corpus path
arch/arm64/boot/dts/freescale/imx8mm.dtsi
Extension
.dtsi
Size
43783 bytes
Lines
1505
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+ OR MIT)
/*
 * Copyright 2019 NXP
 */

#include <dt-bindings/clock/imx8mm-clock.h>
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/input/input.h>
#include <dt-bindings/interrupt-controller/arm-gic.h>
#include <dt-bindings/power/imx8mm-power.h>
#include <dt-bindings/reset/imx8mq-reset.h>
#include <dt-bindings/thermal/thermal.h>

#include "imx8mm-pinfunc.h"

/ {
	interrupt-parent = <&gic>;
	#address-cells = <2>;
	#size-cells = <2>;

	aliases {
		ethernet0 = &fec1;
		gpio0 = &gpio1;
		gpio1 = &gpio2;
		gpio2 = &gpio3;
		gpio3 = &gpio4;
		gpio4 = &gpio5;
		i2c0 = &i2c1;
		i2c1 = &i2c2;
		i2c2 = &i2c3;
		i2c3 = &i2c4;
		mmc0 = &usdhc1;
		mmc1 = &usdhc2;
		mmc2 = &usdhc3;
		serial0 = &uart1;
		serial1 = &uart2;
		serial2 = &uart3;
		serial3 = &uart4;
		spi0 = &ecspi1;
		spi1 = &ecspi2;
		spi2 = &ecspi3;
	};

	cpus {
		#address-cells = <1>;
		#size-cells = <0>;

		idle-states {
			entry-method = "psci";

			cpu_pd_wait: cpu-pd-wait {
				compatible = "arm,idle-state";
				arm,psci-suspend-param = <0x0010033>;
				local-timer-stop;
				entry-latency-us = <1000>;
				exit-latency-us = <700>;
				min-residency-us = <2700>;
			};
		};

		A53_0: cpu@0 {
			device_type = "cpu";
			compatible = "arm,cortex-a53";
			reg = <0x0>;
			clocks = <&clk IMX8MM_CLK_ARM>;
			enable-method = "psci";
			i-cache-size = <0x8000>;
			i-cache-line-size = <64>;
			i-cache-sets = <256>;
			d-cache-size = <0x8000>;

Annotation

Implementation Notes