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On Wednesday 11 April 2001 11:32 am, Ben Harris wrote:
> On Wed, 11 Apr 2001, Chris Gilbert wrote:
> > > Log Message:
> > > Apply a bandage to delay() so that it takes a more suitable time on
> > > StrongARM Risc PCs.  It really should be replaced entirely, but I've
> > > got more important bugs to fix.
> >
> > Would using something similiar to the delay mechanism from
> > arm26/iobus/ioc.c work?   Or are you thinking of some mechanism that uses
> > the 2nd iomd timer (which I don't think we use for anything currently) 
> > Using the arm26 method would actually be more portable to the other arm32
> > architectures.
>
> As Richard points out, the second timer should be reserved for
> statclock().  The arm26 delay() should be a reasonable replacement for the
> current arm32 one if anyone feels like working on that.

See attached patch, (it's only for iomd based systems though, probably be 
useable on the others though with a bit of tweaking)

If anyone can give me some feedback on the size of the loop used to calibrate 
that'd be good :)  I believe that it needs to be big otherwise it might go 
too fast on the SA It may actually have to be based on the cpu id though, or 
it may take too long on a the 600/700's

If there are no objections I'll look to check the code in on friday.

Cheers,
Chris

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