Support Sagecom F@st 5655v2 GPON

I have a new item in my yard. An fiber gateway as in topic title. My needs is to work on it specially LAN ports and USB ports. No need for wifi/fiber/voip ports. What version of openwrt is suitable for this device, isn`t listed but i think that is because is not support by the wifi and fiber. Cpu is BCM68380 and it has a lot of memory, 128 MB flash... good for sip server or other usefull things.
If anybody has an ideea is good to post it here.
Thank you!

Anybody? Something, an generic firmware?