netdev - Re: [Bugme-new] [Bug 33042] New: Marvell 88E1145 phy configured incorrectly in fiber mode

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Date:	Sun, 17 Apr 2011 22:44:31 -0700 (PDT)
From:	Alex Dubov <oakad@...oo.com>
To:	Andy Fleming <afleming@...il.com>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	David Daney <ddaney@...iumnetworks.com>,
	netdev@...r.kernel.org, bugzilla-daemon@...zilla.kernel.org,
	bugme-daemon@...zilla.kernel.org,
	Grant Likely <grant.likely@...retlab.ca>
Subject: Re: [Bugme-new] [Bug 33042] New: Marvell 88E1145 phy configured incorrectly in fiber mode


> > --- On Thu, 14/4/11, Andy Fleming <afleming@...il.com>
> wrote:
> >
> >>
> >
> > The u-boot is standard stock u-boot pulled from the
> recent git,
> > no special configuration involved.
> 
> 
> Are you seeing this message when you run ethernet in
> u-boot?
> 
> "Speed: 1000, full duplex, fiber mode"

I have this weird problem whereupon I assume something and then keep
believing it's true. So not, I'm not seeing this message. :)

There are two interfaces attached to that phy, one is normal RJ45, the
other is an uTCA backplane (it has only two pairs, so I assumed it must
be operating in fiber mode). Uboot works perfectly well with both and
prints the same messages.

That's the example printout from u-boot (eTSEC1 is connected to backplane)

> dhcp
Speed: 1000, full duplex
BOOTP broadcast 1
DHCP client bound to address 192.168.1.202
Using eTSEC1 device

> 
> You could probably change to use a fixed link by removing
> the
> phy-handle property from your ethernet device node, and
> adding:
> "fixed-link=<0 1000 1 0 0>".  If that works,
> then the issue is that
> Linux is breaking something when it connects. It might be
> good enough
> for you to use fixed-link, though it would be good to
> actually find
> out what's going wrong with the PHY driver.
> 

I'll try this out now.

I'm trying to obtain a data sheet for the device, but had not succeeded
in it just yet.

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