TS-4712 Ethernet
From embeddedTS Manuals
The Marvell Processor implements a 10/100 ethernet controller with support built into the Linux kernel. The TS-4712 includes an integrated Ethernet switch which act as individual ethernet ports in Linux.
You can use standard Linux utilities such as ifconfig/ip to control this interface. See the #Configuring the Network section for more details. For the specifics of this interface see the CPU manual.