VisionFive 2 Board Level Configuration

The board level DTS file stores all identification information for each board.

The board level DTS files are stored in the following path: 

linux-5.15/arch/riscv/boot/dts/starfive/jh7110-visionfive-v2.dts
linux-5.15/arch/riscv/boot/dts/starfive/jh7110-visionfive-v2.dtsi
The following code block provides an example of the USB configuration in the board level DTS file. 
&usbdrd30 {
	pinctrl-names = "default";
	pinctrl-0 = <&usb_pins>;
	dr_mode = "host"; /*host or peripheral*/
	status = "disabled";
};
In the above code block, the parameter dr_mode represents the default mode of the USB port, and the following options are available.
  • peripheral: Device mode as the slave device.
  • host: Host mode as the master device.
Note:

If you are using the USB standby mode, note the following:

  • Your IC should be able to support remote wakeup.
  • Follow the JH7110 Hardware Design Reference strictly when designing your device.
  • Add an additional parameter named "wakeup-source" in the above code block and enable the USB standby function.