860T FEC

860T FEC

[Timothy Ritchey]

Has anyone had any luck with the 860T FEC driver in the 2.4 kernel (I am
using the 01/13/01 snapshot from FSMLabs). It is certainly not working
out-of-the-box as it were. For example, it tries calling mii_queue with
read operations that require the MII interrupt before interrupts have
even been enabled. There is code that needs to be run in the
fec_restart() function (such as the interrupt enable, and just enabling
the ethernet device) but it is never called. I cannot see how this code
was ever working properly. Is anyone running it that can refute this? I
have made some changes that seem to get it halfway there, but am not
getting any transmit interrupts yet (I am getting receive and mii
interrupts).

Cheers,
tim

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Re: 860T FEC

[Dan Malek]

Timothy Ritchey wrote:
>
> Has anyone had any luck with the 860T FEC driver in the 2.4 kernel (I am
> using the 01/13/01 snapshot from FSMLabs).

If you would have searched the archives, you would have noticed:

	1) We know it doesn't work
	2) Wolfgang Denk has one you can download
	3) BenH probably has a better one by now


	-- Dan

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Re: 860T FEC

[Wolfgang Denk]

Hi Tim,

in message <3A75F8A8.64ADB0C@vacuumgenesis.com> you wrote:
>
> Has anyone had any luck with the 860T FEC driver in the 2.4 kernel (I am
> using the 01/13/01 snapshot from FSMLabs). It is certainly not working
> out-of-the-box as it were. For example, it tries calling mii_queue with

No, it ain't.

> the ethernet device) but it is never called. I cannot see how this code
> was ever working properly. Is anyone running it that can refute this? I

I think you are right. This code cannot work, never could.

But the good news is that I have a working version of the FEC driver;
see our modified kernel sources in
ftp://ftp.denx.de/pub/LinuxPPC/usr/src/,
or the patch at
ftp://ftp.denx.de/pub/LinuxPPC/usr/src/patches/patch.8xx_misc
(and the README for it in
ftp://ftp.denx.de/pub/LinuxPPC/usr/src/patches/README.8xx_misc
).

BTW: I've sent all these patches to Dan and Cort and Ben, so  I  hope
at least part of it will make it in the official sources.

> have made some changes that seem to get it halfway there, but am not
> getting any transmit interrupts yet (I am getting receive and mii
> interrupts).

It's working for me in several configurations.

Wolfgang Denk

--
Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-4596-87  Fax: (+49)-8142-4596-88  Email: wd@denx.de
Visit us at Embedded Systems: Feb 14-16 2001, Nuremberg, Halle 12/K01
(with TQ Components); our presentation "Starke Zwerge: Embedded Linux
auf PowerPC-Systemen" on Thursday, Feb 15 2001, 13:30 Forum Halle 11.

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Re: 860T FEC

[Timothy Ritchey]

Wolfgang Denk wrote:
>
> BTW: I've sent all these patches to Dan and Cort and Ben, so  I  hope
> at least part of it will make it in the official sources.

Thanks! I finally got it up and running, and have ethernet!!!. I had to
make some changes WRT some of the MII commands, which I don't think
would impact anyone else, but I also had to change the order of setting
the fecp->imask, and clearing the interrupts. The patch had it clearing
the interrupts, then setting the mask. It needed to be the otherway
around, at least for me.

Cheers,
tim

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