fwochi.c and bus_space_barrier()

[Sean Bruno]

> >>
> > 
> > This looks basically good, but as outlined earlier a driver
> > souldn't busy-wait 50ms. Could one of you please test whether
> > pause("fwlps", (50 * hz + 999) / 1000) works as a drop-in
> > replacement for DELAY(50000) here?
> 
> Works fine here!
> 
> Thanks!
> Andreas
> 
> 
> 

Ok, time for more testing.  A couple of changes here.

1.  change busy DELAY() call with pause()
2.  test for lps condition before pause(), if not set pause and retry.


Sean
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