Subject: Re: New NCR driver
To: Ignatios Souvatzis <>
From: Manuel Bouyer <>
List: current-users
Date: 04/24/2000 13:56:48
On Mon, Apr 24, 2000 at 11:44:57AM +0200, Ignatios Souvatzis wrote:
> I'm not convinced it is worth the hassle to merge in the 710... if it was
> possible in a straightforward way, we'd done it when writing the '770
> support.
> ('720,'770,and '8xx look all very similar; the only differences being
> capabilities implemented (like wide scsi, maximum sync speed,
> availability of on-chip script ram; and of course 8xx are PCI).
> The '710 (and '700) chip looks similar to the later ones, and uses the same
> script processing language, but does not have some registers, and has some
> others in a different place. Among them is the _chip version field_, which
> tells you (for the later ones) the capabilities available (max. speed, etc.).

I'm still looking for docs on these.

> What definitely should be done is to bus_dmaify the 710 driver and use a common
> one between Amiga and VME machines (I think). I only need a volunteer to do
> this.

I think at last come code can be shared. Maybe it's even possible to share
source, by using #ifdef in the C code and something like this:
#define ARCH_710
#include <dev/ic/siop_common.c>

Manuel Bouyer <>