Hello,
I have noticed that my BBAI Rev A1, when connected to a PC, will enumerate as a high-speed USB device with the USB-C connector in one orientation, and a Super-Speed device with the connector oriented in the other direction (simply flipped upside down). I have reproduced this across several software revisions including the production emmc image: http://debian.beagleboard.org/images/am57xx-eMMC-flasher-debian-9.9-lxqt-armhf-2019-08-03-4gb.img.xz
I checked the https://github.com/beagleboard/beaglebone-ai/wiki/System-Reference-Manual#board-changes page and did not see any changes related to USB in any of the newer revisions. I was wondering if there are others who also have experienced this issue, or if it could be isolated to my specific board. I have reproduced the issue with several different USB-C cables including a USB A->USB-C and USB-C → USB-C cable.
First orientation:
Nov 6 13:54:36 lnx-nickg kernel: [606956.216954] usb 1-5: new high-speed USB device number 48 using xhci_hcd
Nov 6 13:54:36 lnx-nickg kernel: [606956.346011] usb 1-5: New USB device found, idVendor=1d6b, idProduct=0104
Nov 6 13:54:36 lnx-nickg kernel: [606956.346013] usb 1-5: New USB device strings: Mfr=1, Product=2, SerialNumber=3
Nov 6 13:54:36 lnx-nickg kernel: [606956.346015] usb 1-5: Product: BeagleBone
Nov 6 13:54:36 lnx-nickg kernel: [606956.346017] usb 1-5: Manufacturer: BeagleBoard.org
Nov 6 13:54:36 lnx-nickg kernel: [606956.346018] usb 1-5: SerialNumber: 1234BBBK5678
Nov 6 13:54:36 lnx-nickg kernel: [606956.347593] usb-storage 1-5:1.2: USB Mass Storage device detected
…
Second orientation: