arch/arm/boot/dts/nxp/imx/imx7ulp.dtsi

Source file repositories/reference/linux-study-clean/arch/arm/boot/dts/nxp/imx/imx7ulp.dtsi

File Facts

System
Linux kernel
Corpus path
arch/arm/boot/dts/nxp/imx/imx7ulp.dtsi
Extension
.dtsi
Size
14103 bytes
Lines
512
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+
/*
 * Copyright (C) 2016 Freescale Semiconductor, Inc.
 * Copyright 2017-2018 NXP
 *   Dong Aisheng <aisheng.dong@nxp.com>
 */

#include <dt-bindings/clock/imx7ulp-clock.h>
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/interrupt-controller/arm-gic.h>

#include "imx7ulp-pinfunc.h"

/ {
	interrupt-parent = <&intc>;

	#address-cells = <1>;
	#size-cells = <1>;

	aliases {
		gpio0 = &gpio_ptc;
		gpio1 = &gpio_ptd;
		gpio2 = &gpio_pte;
		gpio3 = &gpio_ptf;
		i2c0 = &lpi2c6;
		i2c1 = &lpi2c7;
		mmc0 = &usdhc0;
		mmc1 = &usdhc1;
		serial0 = &lpuart4;
		serial1 = &lpuart5;
		serial2 = &lpuart6;
		serial3 = &lpuart7;
		usbphy0 = &usbphy1;
	};

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

		cpu0: cpu@f00 {
			compatible = "arm,cortex-a7";
			device_type = "cpu";
			reg = <0xf00>;
			clocks = <&smc1 IMX7ULP_CLK_ARM>,
				 <&scg1 IMX7ULP_CLK_CORE>,
				 <&scg1 IMX7ULP_CLK_SYS_SEL>,
				 <&scg1 IMX7ULP_CLK_HSRUN_CORE>,
				 <&scg1 IMX7ULP_CLK_HSRUN_SYS_SEL>,
				 <&scg1 IMX7ULP_CLK_FIRC>;
			clock-names = "arm", "core", "scs_sel",
				      "hsrun_core", "hsrun_scs_sel",
				      "firc";
			operating-points-v2 = <&cpu0_opp_table>;
		};
	};

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

		opp-500210000 {
			opp-hz = /bits/ 64 <500210000>;
			opp-microvolt = <1025000>;
			clock-latency-ns = <150000>;
			opp-suspend;
		};

		opp-720000000 {
			opp-hz = /bits/ 64 <720000000>;
			opp-microvolt = <1125000>;

Annotation

Implementation Notes