enabling i2c-2 for beaglboard xm

I was have loaded the latest linux kernel(3.10.6) on beagleboard xm.
when i check /dev, i find only i2c-1 and i2c-3 enabled. I require 12c-2 to be enabled fro my work.

Is there any patched available for the linux kernel which will enable it?
Can i do this doing boot time?How?

Manish Kanchan