Hi Grant
Thanks for your response!
I have searched for "current-speed" in drivers/net/fec_mpc52xx.c but I cannot
find anything. However we are using the gianfar.c Ethernet driver.
Do you know whether this driver supports fixed MII links without PHY?
I've got another question regarding MII connection between and MPC and a Virtex
FPGA. Whats about the PHY address which has to be set in the DTB file? Do I
have to modify the DTB at all?
Thank you!
Best regards
Frank
Frank Prepelica
Software Design Engineer
Ubidyne GmbH
Lise-Meitner-Str.-14
89081 Ulm - Germany
Phone: +49 731 88 00 71 58
Fax: +49 731 88 00 71 99
Email: [email protected]
Homepage: www.ubidyne.com
Registered office: Ulm
District court of Ulm: HRB 5295
Managing Directors:
Dipl. Ing. Ken Hawk
Dipl. Ing. Beat Müller
Dipl. Ing. Mike Levis
> -----Ursprüngliche Nachricht-----
> Von: Grant Likely [mailto:[email protected]]
> Gesendet: Donnerstag, 25. Juni 2009 22:06
> An: Frank Prepelica
> Cc: [email protected]
> Betreff: Re: Direct MII connection between MPC8313 and VIRTEX FPGA
>
> On Thu, Jun 25, 2009 at 9:11 AM, Frank
> Prepelica<[email protected]> wrote:
> > Hi all,
> >
> > we removed the ethernet PHYs (MARVELL) from our customized board (based
> on MPC8313ERDB) and
> > connected the CPU Ethernet lines directly to a FPGA which is now
> emulating the PHY. But the ifconfig
> > command cannot find that eth device anymore. Does the emulated PHY needs
> to provide MDIO
> > information that the ETH device can be found again?
>
> No, you just need to make sure that the Ethernet driver is able to
> support fixed speed MII links without a PHY. It's trivial to do, but
> not all drivers support it. Search for "current-speed" in
> drivers/net/fec_mpc52xx.c for an example.
>
> g.
>
> --
> Grant Likely, B.Sc., P.Eng.
> Secret Lab Technologies Ltd.
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