[microblaze-uclinux] opb_ethernetlite on Memec Spartan 3 board

[Per-Henrik Lundblom <ph@xxxxxxxxxxx>]

Hi,

I am evaluating the opb_ethernetlite IP core from Xilinx on a Memec
Spartan 3MB development board running microblaze-uClinux. I have been
trying to get the ethernet up and running for several days without
success.

I'm using the latest source (linux/net/xilinx_emaclite/) from the 
uClinux CVS. I have verified that all FPGA pins are connected to the
Broadcom BCM5221 PHY. The emaclite driver is compiled into the kernel.

This is what I have so far:

Everything boots up and the emaclite core seems to be initialized as
supposed. It is possible to bring up the interface and ping a host on
the network but no data is seen on the ethernet. The LED on the switch
is blinking for every packet, but I can't capture any data using the
usual network analyzation tools. If I try to ping the Microblaze system
I can see that data reception seems to work, because the ARP table on
the Microblaze system is updated. No ping reply is generated. 

I draw the conclusion that sending data is the problem, still nothing is
indicating a problem.

Any suggestions?

Best regards,

PH

--
Per-Henrik Lundblom           epost: ph@xxxxxxxxxxx
telefon: 0733-20 71 26        hemsida: www.whatever.nu
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