Linux on 857T?

Linux on 857T?

[Kerl, John]

Hello,

I am attempting a Linux port to a custom 857T board.  I've tried
several different kernel trees, with the same results:  unhandled
ITLB misses parking the CPU.  Now, I've searched repeatedly through
the mailing lists here, but haven't found the answer to the following:

	Has anyone has successfully ported Linux to an 857T?

I know many people have done it on 860's and 8260's, but I am curious
about any undocumented errata (perhaps MMU-related) that anyone may
have found, or any gotchas.

I am of course omitting, on this post, many specific details such as
kernel revisions, location of the CPU hang, specifics of the board,
what devices are on it, what hardware has been tested and how,
etc., etc.  At this point, I'd just like to know if anyone has
succeeded on an 857T at all; then, maybe we could discuss things in
more detail.

Thanks in advance ... .

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Re: Linux on 857T?

[Dan Malek]

Kerl, John wrote:

> Hello,
>
> I am attempting a Linux port to a custom 857T board.  I've tried
> several different kernel trees, with the same results:  unhandled
> ITLB misses parking the CPU.

What do you mean "unhandled ITLB misses"?

The 857T _should_ work like an 860T with Ethernet either on the SCC or
the FEC (or both).  Of course, the reason to choose this part is you get both
parallel UTOPIA and FEC, which will require some software changes to enable
both of these functions.


	-- Dan


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