I made a electronic board to use with CM3 but I took the wrong schematic source CMIO 1.2 instead of CMIO Rev 3.0.
I'm able to boot normally my raspberry but usb seems doesn't work in interface with a LAN9512.
When I want to boot from USB to mount the EMCC to my computer the raspberry boot normally.
I don't really see the reason of that after comparing the schematics, I think I miss something.
Thanks you for help.