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USB 2.0 OTG Driver for Hard Processor System

Last updated: November 01, 2024

Upstream Status: Upstreamed

Devices supported: Agilex 7, Agilex 5

Introduction

The hard processor system (HPS) provides a USB On-The-Go (OTG) controller that supports both device and host functions. The controller is fully compliant with the On The Go and Embedded Host Supplement to the USB Revision 1.3 and Revision 2.0 Specification. The controller can be programmed for both device and host functions to support data movement over the USB protocol

For More information please refer to the following link:

Agilex 5 Hard Processor System Technical Reference Manual

usb2_0_diagram

Driver Sources

The source code for this driver can be found at:

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/drivers/usb/dwc2

Driver Capabilities

  • Provides basic services for accessing and managing the hardware.
  • Enable support for Host and peripheral mode.
  • Handle control and data transfers between the USB host and connected USB peripherals.

Kernel Configurations

CONFIG_USB_DWC2

usb2_0_otg_config_path

Device Tree

Example Device tree location to configure the usb2_0_otg:

https://github.com/altera-opensource/linux-socfpga/blob/socfpga-6.1.55-lts/arch/arm64/boot/dts/intel/socfpga_agilex5.dtsi

usb2_0_otg_device_tree

Known Issues

None Known

Notices & Disclaimers

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Last update: November 1, 2024
Created: May 25, 2024