arch/arm/boot/dts/st/stm32mp151.dtsi

Source file repositories/reference/linux-study-clean/arch/arm/boot/dts/st/stm32mp151.dtsi

File Facts

System
Linux kernel
Corpus path
arch/arm/boot/dts/st/stm32mp151.dtsi
Extension
.dtsi
Size
57071 bytes
Lines
2246
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 BSD-3-Clause)
/*
 * Copyright (C) STMicroelectronics 2017 - All Rights Reserved
 * Author: Ludovic Barre <ludovic.barre@st.com> for STMicroelectronics.
 */
#include <dt-bindings/arm/coresight-cti-dt.h>
#include <dt-bindings/interrupt-controller/arm-gic.h>
#include <dt-bindings/clock/stm32mp1-clks.h>
#include <dt-bindings/reset/stm32mp1-resets.h>

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

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

		cpu0: cpu@0 {
			compatible = "arm,cortex-a7";
			clock-frequency = <650000000>;
			device_type = "cpu";
			reg = <0>;
		};
	};

	arm-pmu {
		compatible = "arm,cortex-a7-pmu";
		interrupts = <GIC_SPI 200 IRQ_TYPE_LEVEL_HIGH>;
		interrupt-affinity = <&cpu0>;
		interrupt-parent = <&intc>;
	};

	psci {
		compatible = "arm,psci-1.0";
		method = "smc";
	};

	intc: interrupt-controller@a0021000 {
		compatible = "arm,cortex-a7-gic";
		#interrupt-cells = <3>;
		interrupt-controller;
		reg = <0xa0021000 0x1000>,
		      <0xa0022000 0x2000>;
	};

	timer {
		compatible = "arm,armv7-timer";
		interrupts = <GIC_PPI 13 (GIC_CPU_MASK_SIMPLE(1) | IRQ_TYPE_LEVEL_LOW)>,
			     <GIC_PPI 14 (GIC_CPU_MASK_SIMPLE(1) | IRQ_TYPE_LEVEL_LOW)>,
			     <GIC_PPI 11 (GIC_CPU_MASK_SIMPLE(1) | IRQ_TYPE_LEVEL_LOW)>,
			     <GIC_PPI 10 (GIC_CPU_MASK_SIMPLE(1) | IRQ_TYPE_LEVEL_LOW)>;
		interrupt-parent = <&intc>;
		arm,no-tick-in-suspend;
	};

	clocks {
		clk_hse: clk-hse {
			#clock-cells = <0>;
			compatible = "fixed-clock";
			clock-frequency = <24000000>;
		};

		clk_hsi: clk-hsi {
			#clock-cells = <0>;
			compatible = "fixed-clock";
			clock-frequency = <64000000>;
		};

		clk_lse: clk-lse {

Annotation

Implementation Notes