[SeaBIOS] usb ohci pipe free fix

[Kevin O'Connor]

On Thu, Mar 08, 2012 at 11:36:05PM +0100, Nils wrote:
> Op woensdag 07-03-2012 om 21:38 uur [tijdzone -0500], schreef Kevin
> O'Connor:
> > Oh - it definitely wont work with it changed to malloc_high.  The test
> > is just to see if the controller continues to freeze with it that way.
> > It looks like the timeouts went away, which would indicate that your
> > USB chip has some problems DMAing to low memory.  Definitely sounds
> > like a chip bug.  Best way to confirm that would be to repost the log
> > with the malloc_high change on top of the debugging patch I last sent.
> See seriallog-20120308_173529.log
> 
> > Another test you could do would be to change the allocations back to
> > "malloc_low()" but as "malloc_low() + 0x50000" to see if moving the
> > allocations from the 9-segment to the e-segment makes the controller
> > happy.
> See seriallog-20120308_183255.log

It looks pretty clear that the controller doesn't like 9-segment nor
e-segment addresses.  You could try "malloc_low() - 0x50000" to see
how the controller likes 4-segment address, but basically the only
hope of getting this to work is to see if you can fix the controller.

-Kevin