Getting USB to work on BeagleBone Black (armv7)?

Dear arm@ and misc@,

Having just reinstalled OpenBSD on a BeagleBone Black I had lying
around I wanted to use the USB Host port but it seems it doesn't
work. 

Dmesg on boot said,

"usb-phy" at omsysc52 not configured
"usb" at omsysc52 not configured
"usb-phy" at omsysc52 not configured
"usb" at omsysc52 not configured

And `usbdevs -vvvv` returns "no USB controllers found". 

Is there a way to get the USB port working on this platform?

Thanks

rqm