arch/arm64/boot/dts/ti/k3-am642-hummingboard-t-usb3.dts

Source file repositories/reference/linux-study-clean/arch/arm64/boot/dts/ti/k3-am642-hummingboard-t-usb3.dts

File Facts

System
Linux kernel
Corpus path
arch/arm64/boot/dts/ti/k3-am642-hummingboard-t-usb3.dts
Extension
.dts
Size
781 bytes
Lines
48
Domain
Architecture Layer
Bucket
arch/arm64
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) 2023 Josua Mayer <josua@solid-run.com>
 *
 * DTS for SolidRun AM642 HummingBoard-T,
 * running on Cortex A53, with USB-3.1 Gen 1.
 *
 */

#include "k3-am642-hummingboard-t.dts"

#include "k3-serdes.h"

/ {
	model = "SolidRun AM642 HummingBoard-T with USB-3.1 Gen 1";
};

&serdes0 {
	#address-cells = <1>;
	#size-cells = <0>;

	serdes0_link: phy@0 {
		reg = <0>;
		cdns,num-lanes = <1>;
		cdns,phy-type = <PHY_TYPE_USB3>;
		#phy-cells = <0>;
		resets = <&serdes_wiz0 1>;
	};
};

&serdes_ln_ctrl {
	idle-states = <AM64_SERDES0_LANE0_USB>;
};

&serdes_mux {
	idle-state = <0>;
};

&usbss0 {
	/delete-property/ ti,usb2-only;
};

&usb0 {
	maximum-speed = "super-speed";
	phys = <&serdes0_link>;
	phy-names = "cdns3,usb3-phy";
};

Annotation

Implementation Notes