ATM driver for 8260 (linux 2.4.x) working!

ATM driver for 8260 (linux 2.4.x) working!

[Absolut Hunter]

I know this is a very old post, but was wondering if anyone still has the
ATM driver for the 8260 lying about...

I am attempting to get ATM up and running on an 8280, which should be the
same. 


-R. McGuire

ATM driver for 8260 (linux 2.4.x) working!

[Theo Gjaltema]

We once did a port of a ATM driver on the 8260 for a linux 2.2.20 kernel.
For this, we patched a pre-release of the driver build by ?
If interested, I could send you our results.

Greetings,
  Theo.

Re: ATM driver for 8260 (linux 2.4.x) working!

[Alex Zeffertt]

Hi,

I would be interested in any patch you may have.  Please could you let
me know which release the patch is against.

Thanks

On Thu, 05 May 2005 11:19:48 +0200
Theo Gjaltema <gjalt007@chello.nl> wrote:

> 
> 
> We once did a port of a ATM driver on the 8260 for a linux 2.2.20
> kernel. For this, we patched a pre-release of the driver build by ?
> If interested, I could send you our results.
> 
> Greetings,
>   Theo.
> _______________________________________________
> Linuxppc-embedded mailing list
> Linuxppc-embedded@ozlabs.org
> https://ozlabs.org/mailman/listinfo/linuxppc-embedded

Re: [Linux-ATM-General] Re: ATM driver for 8260 (linux 2.4.x)

[None Atall]

 Mr Hofrat is right!
For some reason the interrupt handler reads old
values, although the CPM puts new data. (I checked it
using JTAG). It seems
like the old data are kept on buffers and are not
refreshed. Unfortunetely i did what Hofrat saied,
but it doesn't work. Is there a function for forcing
refresh? flush_tlb or flush_dcache perhaps?

                     Thanks!
                       D. Meidanis

--- Der Herr Hofrat <der.herr@mail.hofr.at> wrote:
> >
> >   But until you do it, could you help me in one
> > problem
> > that i have? I have imported the mpc860sar driver
> > myself. But i have this problem. When i use the
> aread
> > program, i seem to take the data ok. But if from
> the
> > transmit computer i send quick the data, the CPM
> seems
> > to
> > jump positions in the Interrupt Queue. I mean that
> my
> > pointer (SW) increases correct, but the CPM
> increases
> > without putting an interrupt entry. Any ideas?
> > Also, in the original driver Alex used the
> > mm_alloc_uncached_pages function, but i have
> replased
> > it with kmalloc(size, GFP_KERNEL). Is it correct?
> >
> I don't know about the details of your setup - but
> we had similar phenomenon with
> a driver on the CPM that acknowledged the interrupt
> too late - the therapy
> was to move the interrupt ack to the top of the
> driver and all was well.
>
> so maby you are seeing the same problem due to the
> same driver coding error .
>
> hofrat


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ATM driver for 8260 (linux 2.4.x) working!

[None Atall]

 At last,
The import to 8260 was successfull!
For now I support AAL5, and CBR. It is
a matter of days before I have a full working
driver. The only problem is the cache problem,
since I want uncashed pages. I am still working
on it.
 If anyone needs the driver really fast, I can send
it to him.

               A happy Hardware engineer,that
               messed with software engineering! :)
                        D. Meidanis


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