Re: [microblaze-uclinux] networking update

[John Williams <jwilliams@itee.uq.edu.au>]

Hi Gunter,

Günter Dannoritzer wrote:
> I have some problems to get the EMAC going. Just adding the EMAC to the 
> project and assigning the parameters and the pin assignment I can access 
> the EMAC with simple commands and read/write to the register. However, I 
> never see the link LED come on when I connect the cable. I read the 
> control regiser and the physical interface is supposed to be enabled.

At least for revision 1, the ethernet PHY on the P160 module behaves 
quite strangely.  When I connect to a 10mbps link, I only get the link 
LED, never the activity LED, even when many packets are going.  Then, 
when I connect to a 100mbps backbone, all 3 leds glow solid...

But anyway, returning to your question- yes the Link LED should glow.

What happens if you query the PHY MII registers via the EMAC?  I forget 
the register offset, but it's in the EMAC datasheet.  You pass in a 5 
bit (0->31) MII register and a query command, and it returns PHY status 
info.

> Do you plan to post the updated platform or could you sent it to the list?

Yes, I will post mbvanilla_net - I'm at home now, but will do so 
tomorrow when I return to work.

Regards,

John

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