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Re: shared-memory type ISA boards?

Subject: Re: shared-memory type ISA boards?
From: Eric Jorgensen <>
Date: Mon, 17 Aug 1998 17:25:49 -0600 (MDT)
In-reply-to: <> from "Thomas Bogendoerfer" at Aug 17, 98 11:13:56 pm
> On Mon, Aug 17, 1998 at 11:31:56AM -0600, Eric Jorgensen wrote:
> >     Just for kicks, I was thinking it might be useful to install the
> > board in my Magnum. From what I understand, this is a board that uses a
> > range of  memory, an io port, and an irq. I'm also querying the
> > Video4Linux mailing list, but, in the opinion of this list, are shared
> > memory boards working well with linux/mips at this time?
> I haven't tested one, but this will soon change, when I plug in my spare 
> ISDN card. In theory memory mapped IO shouldn't make any problems, when the
> driver is written properly (if it runs on Alphas, most of the portabilty
> problems are already solved).

        Well, the alan cox told me this board is "sortof" shared memory -
that it uses a range in the ISA memory space as a FIFO. And said that as
long as the MIPS system keeps that range uncached, it should work fine. 

 - Eric

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