From: Grant Likely <grant.likely@secretlab.ca>
To: Frank Prepelica <Frank.Prepelica@ubidyne.com>
Cc: linuxppc-dev@ozlabs.org
Subject: Re: Direct MII connection between MPC8313 and VIRTEX FPGA
Date: Thu, 25 Jun 2009 14:05:49 -0600 [thread overview]
Message-ID: <fa686aa40906251305x4c835064y811cda9a0c717d23@mail.gmail.com> (raw)
In-Reply-To: <29DC34A6B43468409F5A371CFE34E849D7ED46@ex01.ads.ubidyne.de>
On Thu, Jun 25, 2009 at 9:11 AM, Frank
Prepelica<Frank.Prepelica@ubidyne.com> 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.
next prev parent reply other threads:[~2009-06-25 20:06 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-06-25 15:11 Direct MII connection between MPC8313 and VIRTEX FPGA Frank Prepelica
2009-06-25 20:05 ` Grant Likely [this message]
[not found] <Acn10GL8UFkH8grcTWecohRthafWswCvtYhQ>
2009-06-29 8:23 ` AW: " Frank Prepelica
2009-06-29 15:40 ` Grant Likely
-- strict thread matches above, loose matches on Subject: below --
2009-06-30 8:35 AW: " Frank Prepelica
2009-06-30 16:16 ` Grant Likely
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