We are making a carrier card around Jetson TX2 module. I have following question wr.t VBUS detect and USB_OTG_ID pin.
- We are supporting only host mode. In this case, do we need to connect USB0_VBUS_DET to the load switch output?
Can someone explain, how does the transition between device mode to host mode happen based on USB0_VBUS_DET input
- We are not using USB_OTG_ID pin. Can we leave this NC. Will host mode work appropiately if this pin is NC>
For host/device mode switch, please check [For an OTG (On-The-GO) Port] in adaptation guide:
If you run in host mode only, you can simple set
status = "okay";
<b>mode = "host";</b>
vbus-supply = <&vdd_usb0_5v>;
nvidia,oc-pin = <0>;
<b>status = "disabled";</b>
and remove extcon-* in xhci@3530000
<s>extcon-cables = <&vbus_id_extcon 1>;</s>
<s>extcon-cable-names = "id";</s>
<s>#extcon-cells = <1>;</s>