Dear @kswain
This is a known software limitation, all USB host instances share a common power enable (MXM3_84 by default).
As a workaround, I suggest you set the SodimmPen
key for one of the USB host ports (e.g. 112), and control the other power enable pin directly from your software.
You can set pin 84 to high already in the bootloader: Modify the settings in the section gpio.bootconf using the ConfigBlockEditor or the bootloader command line:
Add the following string to the already existing default settings:
[apalispin_84] altfn=-1 dir=out lvl=1
Please get back to us if this workaround is not sufficient for you.
Regards, Andy