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Gega MAC & phy ping not working on 10/100 mode debug.

  1. check if your MAC speed mode is set fixed on 1000 mode .
   if yes ->set to 10/100 mode or 100 mode.
  2. cehck phy speed & duplex mode is get correct.

    gega mac  1G mode  setup is different from 10/100 ,most vendor's gega mac design is same ,
  2 mode for speed one for 1000 only one for 10/100  !
     if mac speed is set on 1000 ,the auto negotiation may be not working on 10/100 hub or any 10/100
      network adapter!