PCI on MPC8250VR

PCI on MPC8250VR

[Jos Beck]

Hi,

Since I am using an MPC8250VR for a new project, I wondered if it was a
smart idea to use it's PCI interface for expansion to other boards.

How well is PCI for the MPC8250 supported in the 2.4.x kernels?

Are there any succesfull implementations?
In this list I only read about trouble with the 8250 PCI :)

Are there any success stories?


Jos


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Re: PCI on MPC8250VR

[Marc Leeman]

> In this list I only read about trouble with the 8250 PCI :)

In our case, we are using PCI quite successfully for simple data pushing
to another device (8245 writes) and DMA is only limited by a (known)
silicon bug in the DSP revision.

Master-Read operations from the PPC memory over PCI have currently a
problem, but we are not able to pinpoint it to either the PPC or the
DSP.

I don't think PCI on the PPC side is a problem though :-/

  marc.

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Re: PCI on MPC8250VR

[Wolfgang Denk]

In message <40684302.2040701@euronet.nl> you wrote:
>
> How well is PCI for the MPC8250 supported in the 2.4.x kernels?
>
> Are there any succesfull implementations?
> In this list I only read about trouble with the 8250 PCI :)

I think this is normal, and  it  is  no  indication  of  any  special
prolems. You just don't need to ask for help if you was successful.

> Are there any success stories?

Sure. We run Linux without problems on  a  couple  of  8250  systems,
including PCI support.

Best regards,

Wolfgang Denk

--
Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-4596-87  Fax: (+49)-8142-4596-88  Email: wd@denx.de
Defaults are wonderful, just like fire.
                  - Larry Wall in <1996Mar6.004121.27890@netlabs.com>

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RE: PCI on MPC8250VR

[Rune Torgersen]

We have PCI working on a 8266 without any problems.

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