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* [U-Boot] AT91SAM9260 Ethernet Device
@ 2009-11-30 17:04 J.Hwan.Kim
  2009-12-01 20:44 ` Jens Scharsig
  0 siblings, 1 reply; 2+ messages in thread
From: J.Hwan.Kim @ 2009-11-30 17:04 UTC (permalink / raw)
  To: u-boot

Hi, everyone

I'm trying to connect ethernet with AT91SAM9260.
My board uses DM9161A as a ethernet transceiver.

The u-boot ethernet initialization routine runs auto-negotiation,
it works fine.  Ethernet controller of AT91SAM9260
(MACB0) receives Auto negotiation completion bit
from DM9161A status register.

But status registor of DM9161A returns "Invalid link status",
so u-boot prints "eth0 link down".

When does the "invalid link status" situation happen?
How can I fix this problem?
I connected the ethernet with PC by cross ethernet cable.

Thanks in advance.

Best Regards,
J.Hwan Kim

^ permalink raw reply	[flat|nested] 2+ messages in thread
* [U-Boot] AT91SAM9260 Ethernet Device
  2009-11-30 17:04 [U-Boot] AT91SAM9260 Ethernet Device J.Hwan.Kim
@ 2009-12-01 20:44 ` Jens Scharsig
  0 siblings, 0 replies; 2+ messages in thread
From: Jens Scharsig @ 2009-12-01 20:44 UTC (permalink / raw)
  To: u-boot

Dear J.Hwan.Kim,
> Hi, everyone
> 
> I'm trying to connect ethernet with AT91SAM9260.
> My board uses DM9161A as a ethernet transceiver.

> 
> The u-boot ethernet initialization routine runs auto-negotiation,
> it works fine.  Ethernet controller of AT91SAM9260
> (MACB0) receives Auto negotiation completion bit
> from DM9161A status register.

Please check phy interface mode: RMII or MII

> 
> But status registor of DM9161A returns "Invalid link status",
> so u-boot prints "eth0 link down".
> 
> When does the "invalid link status" situation happen?
> How can I fix this problem?
> I connected the ethernet with PC by cross ethernet cable.
> 

Which version of U-Boot do you use?
Have You test the connection with an ethernet siwtch?

Best Regards,
J. Scharsig

^ permalink raw reply	[flat|nested] 2+ messages in thread
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