On Sat, Sep 23, 2000 at 12:15:39PM -0700, Jonathan Stone wrote:
> 
> In 1.5_ALPHA, the Promise ata-100 is attached and seems to work in
> UDMA-66 mode on 1.5_ALPHA.  Last time I asked Manuel, he said the
> timing setup required for UDMA-100 was different, and Promise hadn't
> made the necessary information available.
> 
> 
> The HPT chipset is supported as well, but  (iirc) only in UDMA-66 mode.
> Manuel Bouyer will know for sure.

Yes, both are supported in 1.5_ALPHA2, as well as in 1.4.3.
They're running in Ultra/66 more for now, I can make the HPT work in Ultra/100
as soon has I have an Ultra/100 drive in hands (which should happen soon).
However there is some more overhead with Ultra/100 vs Ultra/66 (modes for read
and write are not the same; writing still happens at Ultra/66) so I'm not
sure Ultra/100 is really a gain ...

--
Manuel Bouyer, LIP6, Universite Paris VI.           Manuel.Bouyer@lip6.fr
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