[Gumstix-users] Disabling usb support in u-boot

[Blaine <fr...@gm...>]

Hello Everyone.  Thank you to everyone who had helped me so far in figuring
out why our USB Device crashes on gumstix overo boot.  We've discovered that
yes, it is in fact faulty firmware in our USB Device that causes it to crash
when a host controller probes the bus to find a "usb boot device".  We
confirmed this by setting a laptop to "boot from usb" before hard-drive boot
and our USB device crashes exactly in the same way as with the gumstix.

While we wait for our vendor to hopefully fix the firmware, my question to
all of you is this.  How can we disable all usb probing and any kind of
usb-bus touching from the u-boot process? Our u-boot shell doesn't seem to
indicate that the usb functionality is even present.  It may also be that
there is usb chatter before u-boot (Isn't there a stage that occurs BEFORE
u-boot that could talk to USB?).  Is there an easy way to disable usb, or do
we have to manually go through the source packages and disable
functionality?  At this point we're not exactly sure where the chatter takes
place - only that we want to minimize any and all usb bus contact.

Happy Halloween,
Blaine