[ECOS] Re: PowerPC FEC doesn't ping

Andrew Lunn andrew@lunn.ch
Sat Jul 28 13:07:00 GMT 2007


On Fri, Jul 27, 2007 at 04:59:58PM -0300, Tales Toledo wrote:
> On 7/27/07, Tales Toledo <toledo.tales@gmail.com> wrote:
> > Hi,
> >
> > is there some additional special cdl_option for FEC?
> >
> > I can get ** FEC Info: PHY LINK already UP \n message from redboot
> > boot, configure ip_addresses, but I can get a reply from host or even
> > reply its requests because FEC can't send packages (I have checked
> > with wireshark).
> 
> I also check TXD0 close to phy with an oscilloscope and seems that
> PowerPC FEC (hw is fine because it works with another sw) doesn't
> transmit any package.
> 
> I can see the debug messages at redboot console
> 
> RedBoot> ping -h 192.168.1.100
> Ethernet send:
> 0000545C: FF FF FF FF FF FF 7C 71  43 A6 7C 92 08 06        |......|qC.|...  |
> Ethernet send:
> 0000545C: FF FF FF FF FF FF 7C 71  43 A6 7C 92 08 06        |......|qC.|...  |
> Ethernet send:
> 0000545C: FF FF FF FF FF FF 7C 71  43 A6 7C 92 08 06        |......|qC.|...  |
> 
> Is there some low level debug for FEC driver to address this issue?

I've not used this hardware before. But if the ethernet device thinks
it is transmitting, maybe it is the PHY. Maybe it is in loopback mode? 

   Andrew

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