Interface eth0 won't show up

Hi all,

I have problems with the eth0 interface.

Custom BBB with no EEPROM.

Software :
Linux arm 3.15.10-bone8 #1 Tue Sep 2 02:20:52 PDT 2014 armv7l armv7l armv7l GNU/Linux
Ubuntu 14.04

The A8 boots fine however I don’t see my eth0 interface.
I tried using the Angstrom kernel at start and I could use ethernet. However, I couldn’t see my eMMC so that’s why I decided to go with a latest kernel and OS.

I don’t really see from where the problem can come. Do anyone have an idea ?