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List:       linux-arm-kernel
Subject:    Re: dm9000 troubles on Colibri board
From:       Palo Revak <palo () bielyvlk ! sk>
Date:       2008-01-10 18:47:46
Message-ID: 200801101947.47091.palo () bielyvlk ! sk
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thanks all for your help, the problem was really bad MAC address.
best regards, palo

On Thursday 10 January 2008 16:44:20 you wrote:
> On Thu, Jan 10, 2008 at 04:22:05PM +0100, Palo Revak wrote:
> > previous tests was on 2.6.23.12 with patch from this mailing list by
> > Daniel Mack.
> >
> > I now test this with 2.6.24-rc7
> > (http://lists.arm.linux.org.uk/lurker/message/20080110.125624.04b9b781.en
> >.html) and booting failed while opening eth0 device.
> >
> > U-Boot code: A3F80000 -> A3F97E1C  BSS: -> A3F9C554
> > RAM Configuration:
> > Bank #0: a0000000  0 kB
> > Bank #1: 00000000  0 kB
> > Bank #2: 00000000  0 kB
> > Bank #3: 00000000  0 kB
> > Flash: 32 MB
> > In:    serial
> > Out:   serial
> > Err:   serial
> > Missing Colibri config block
> > Hit any key to stop autoboot:  0
> > dm9000 i/o: 0x08000000, id: 0x90000a46
> > MAC: 11:22:33:44:55:66
>
> I suggest you take some time to understand the structure of MAC addresses
> so you realise that you can't just make one up.
>
> MAC addresses have a structure, and the structure has meaning.  It's
> invalid to set some bits in a source address.
>
> For instance, all zeros is reserved.  All ones is the broadcast address.
> Addresses with the first byte bit 0 set are multicast addresses.  All
> these are invalid source addresses.



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