I am building SDK v1.8 for the LS1021A TWR board, using GCC 4.8.4. I modified the U-Boot environment to boot via TFTP. eTSEC2 and 3 work, but eTSEC1 cannot communicate. It establishes link at 1Gbps, however I never see Tx packets show up at the switch. eTSEC1 sets up as eth0 in Linux, but does not work there either.
I verified that the HW is using NOR flash 0 RCW and that RCW is SSR_PPN_20. SW2 and SW3 are at defaults.
Is there something I must do in order to get all 3 network interfaces functional? What further information can I provide?