Can USB HOST be used for OTG & device?

I’m building my own set of MicroMod processor boards and I use a serial to USB converter to flash the MCU, rather than fuss with a bootloader or pogo pins. The chip I’m working with two pins that can be used for either USB host, USB device and USB OTG. It feels right to use them on the USB HOST pins for device purposes as well. But what is the opinion of the Sparkfun MicroMod creators?

Anyone have an answer?