ohci driver update

[Sebastien R. <Seb...@sy...>]

Hi,

I am chasing the bug that causes the node count to stay at zero on
some ohci chipset. I think I have found a possible culprit, but 
I can't be sure since I don't have this problem with my card and 
I don't have the troublesome hardware here.

The problem I have found is that the linkEnable is set before
the interrupt mask is set. Triggering a bus reset before enabling
the interrupt might well be the reason the self-id packets are
lost.

Anyway I have updated the CVS with the fix, and also with
some development code for direct DMA to user space (not
ready yet, don't bother to use it).

Please try the updated driver, and see if it fixes the problem 
(or introduce some new ones).

-- 
Sebastien Rougeaux
RSISE, The Australian National University