USB 3.1 Driver for Hard Processor System¶
Last updated: October 10, 2025
Upstream Status: Not Upstreamed
Devices supported: Agilex 5
Introduction¶
The HPS provides a single instance of a USB 3.1 Gen 1 controller that supports both device and host functions for high-speed applications. The general use cases of USB 3.1 are for the HPS system to support all USB devices such as:
- Portable electronic devices
- High-bandwidth applications like audio and video.
- Debug trace applications
For More information please refer to the following link:
Agilex 5 Hard Processor System Technical Reference Manual
USB 3.1 Glue Driver¶
drivers/usb/dwc3/dwc3-of-simple.c is a USB glue driver for the dw3-agilex-edge.c component depicted in the diagram below. This glue driver is used to control dynamic mode switching.
Driver Sources¶
The source code for this driver can be found at:
Driver Capabilities¶
- It provides a reference to the Clock which is required by the rest of the interfaces.
Kernel Configurations¶
CONFIG_USB_DWC3
Device Tree¶
Example Device tree location to configure the usb3_1:
Known Issues¶
- Currently dynamic mode switching is not supported
- Real-time detection of USB-C slave devices not supported
Notices & Disclaimers¶
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Created: May 25, 2024