I have a board which has a working Ethernet port PHY0 - we can TFTP the kernel and mount file system over NFS if we set u-boot configuration accordingly.
So electrically/PCB wise the board works.
For production units we boot from NOR. In this mode I am trying to send a small UDP packet out.
I can run PING succesfully.
But when I try and run UDP the UDP packets do not appear - ifconfig also confirms that no packets have been TX'ed (plenty have been received).
MAC address and IP address are set correctly.
I think I am missing a configuration setting in the linux configuration - it is reported as 100 Mb/Half duplex -
Any ideas ?