arch/arm/boot/dts/cirrus/ep7209.dtsi

Source file repositories/reference/linux-study-clean/arch/arm/boot/dts/cirrus/ep7209.dtsi

File Facts

System
Linux kernel
Corpus path
arch/arm/boot/dts/cirrus/ep7209.dtsi
Extension
.dtsi
Size
4222 bytes
Lines
202
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-later

/dts-v1/;

#include <dt-bindings/clock/clps711x-clock.h>

/ {
	#address-cells = <1>;
	#size-cells = <1>;
	model = "Cirrus Logic EP7209";
	compatible = "cirrus,ep7209";

	chosen { };

	aliases {
		gpio0 = &porta;
		gpio1 = &portb;
		gpio3 = &portd;
		gpio4 = &porte;
		serial0 = &uart1;
		serial1 = &uart2;
		spi0 = &spi;
		timer0 = &timer1;
		timer1 = &timer2;
	};

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

		cpu {
			device_type = "cpu";
			compatible = "arm,arm720t";
		};
	};

	soc {
		#address-cells = <1>;
		#size-cells = <1>;
		compatible = "simple-bus";
		interrupt-parent = <&intc>;
		ranges;

		clks: clks@80000000 {
			#clock-cells = <1>;
			compatible = "cirrus,ep7209-clk";
			reg = <0x80000000 0xc000>;
			startup-frequency = <73728000>;
		};

		intc: intc@80000000 {
			compatible = "cirrus,ep7209-intc";
			reg = <0x80000000 0x4000>;
			interrupt-controller;
			#interrupt-cells = <1>;
		};

		porta: gpio@80000000 {
			compatible = "cirrus,ep7209-gpio";
			reg = <0x80000000 0x1 0x80000040 0x1>;
			gpio-controller;
			#gpio-cells = <2>;
		};

		portb: gpio@80000001 {
			compatible = "cirrus,ep7209-gpio";
			reg = <0x80000001 0x1 0x80000041 0x1>;
			gpio-controller;
			#gpio-cells = <2>;
		};

Annotation

Implementation Notes