75XX USB Host
From Technologic Systems Manuals
The Cavium CPU supplies standard USB 2.0 ports. The power to the USB can also be toggled by setting a DIO.
# This is sourced in the initrd, but if you are running # from Debian you will need to source the subroutine file. source /initrd/ts7500.subr # Power off USB setdiopin 7 0 # Power on USB setdiopin 7 1