arch/arm/boot/dts/nxp/imx/imx7d.dtsi

Source file repositories/reference/linux-study-clean/arch/arm/boot/dts/nxp/imx/imx7d.dtsi

File Facts

System
Linux kernel
Corpus path
arch/arm/boot/dts/nxp/imx/imx7d.dtsi
Extension
.dtsi
Size
6317 bytes
Lines
238
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+ OR MIT
//
// Copyright 2015 Freescale Semiconductor, Inc.
// Copyright 2016 Toradex AG

#include "imx7s.dtsi"
#include <dt-bindings/reset/imx7-reset.h>

/ {
	aliases {
		usb0 = &usbotg1;
		usb1 = &usbotg2;
		usb2 = &usbh;
	};

	cpus {
		cpu0: cpu@0 {
			clock-frequency = <996000000>;
			operating-points-v2 = <&cpu0_opp_table>;
			#cooling-cells = <2>;
			nvmem-cells = <&fuse_grade>;
			nvmem-cell-names = "speed_grade";
		};

		cpu1: cpu@1 {
			compatible = "arm,cortex-a7";
			device_type = "cpu";
			reg = <1>;
			clock-frequency = <996000000>;
			operating-points-v2 = <&cpu0_opp_table>;
			#cooling-cells = <2>;
			cpu-idle-states = <&cpu_sleep_wait>;
		};
	};

	timer {
		compatible = "arm,armv7-timer";
		interrupt-parent = <&intc>;
		interrupts = <GIC_PPI 13 (GIC_CPU_MASK_SIMPLE(2) | IRQ_TYPE_LEVEL_LOW)>,
			     <GIC_PPI 14 (GIC_CPU_MASK_SIMPLE(2) | IRQ_TYPE_LEVEL_LOW)>,
			     <GIC_PPI 11 (GIC_CPU_MASK_SIMPLE(2) | IRQ_TYPE_LEVEL_LOW)>,
			     <GIC_PPI 10 (GIC_CPU_MASK_SIMPLE(2) | IRQ_TYPE_LEVEL_LOW)>;
	};

	cpu0_opp_table: opp-table {
		compatible = "operating-points-v2";
		opp-shared;

		opp-792000000 {
			opp-hz = /bits/ 64 <792000000>;
			opp-microvolt = <1000000 950000 1250000>;
			clock-latency-ns = <150000>;
			opp-supported-hw = <0xd>, <0x7>;
			opp-suspend;
		};

		opp-996000000 {
			opp-hz = /bits/ 64 <996000000>;
			opp-microvolt = <1100000 1045000 1250000>;
			clock-latency-ns = <150000>;
			opp-supported-hw = <0xc>, <0x7>;
			opp-suspend;
		};

		opp-1200000000 {
			opp-hz = /bits/ 64 <1200000000>;
			opp-microvolt = <1225000 1200000 1250000>;
			clock-latency-ns = <150000>;
			opp-supported-hw = <0x8>, <0x3>;
			opp-suspend;

Annotation

Implementation Notes