arch/arm/boot/dts/ti/omap/am33xx.dtsi

Source file repositories/reference/linux-study-clean/arch/arm/boot/dts/ti/omap/am33xx.dtsi

File Facts

System
Linux kernel
Corpus path
arch/arm/boot/dts/ti/omap/am33xx.dtsi
Extension
.dtsi
Size
18047 bytes
Lines
726
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-only
/*
 * Device Tree Source for AM33XX SoC
 *
 * Copyright (C) 2012 Texas Instruments Incorporated - https://www.ti.com/
 */

#include <dt-bindings/bus/ti-sysc.h>
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/pinctrl/am33xx.h>
#include <dt-bindings/clock/am3.h>

/ {
	compatible = "ti,am33xx";
	interrupt-parent = <&intc>;
	#address-cells = <1>;
	#size-cells = <1>;
	chosen { };

	aliases {
		i2c0 = &i2c0;
		i2c1 = &i2c1;
		i2c2 = &i2c2;
		serial0 = &uart0;
		serial1 = &uart1;
		serial2 = &uart2;
		serial3 = &uart3;
		serial4 = &uart4;
		serial5 = &uart5;
		d-can0 = &dcan0;
		d-can1 = &dcan1;
		usb0 = &usb0;
		usb1 = &usb1;
		phy0 = &usb0_phy;
		phy1 = &usb1_phy;
		ethernet0 = &cpsw_port1;
		ethernet1 = &cpsw_port2;
		spi0 = &spi0;
		spi1 = &spi1;
		mmc0 = &mmc1;
		mmc1 = &mmc2;
		mmc2 = &mmc3;
	};

	cpus {
		#address-cells = <1>;
		#size-cells = <0>;
		cpu: cpu@0 {
			compatible = "arm,cortex-a8";
			enable-method = "ti,am3352";
			device_type = "cpu";
			reg = <0>;

			operating-points-v2 = <&cpu0_opp_table>;

			clocks = <&dpll_mpu_ck>;
			clock-names = "cpu";

			clock-latency = <300000>; /* From omap-cpufreq driver */
			cpu-idle-states = <&mpu_gate>;
		};

		idle-states {
			mpu_gate: mpu_gate {
				compatible = "arm,idle-state";
				entry-latency-us = <40>;
				exit-latency-us = <90>;
				min-residency-us = <300>;
				ti,idle-wkup-m3;
			};

Annotation

Implementation Notes