Enable PRU on Ubuntu 14.02

Hi Group,

I have decided to update my PRU code from Linux kernel 3.8 to Ubuntu 14.04 (Kernel 3.14). From what I read on the internet the device tree stuff is different

Could some point me to the instructions to enable the PRU on Ubuntu 14.04?

I want to access the LED0-LED4 at first from the PRU.

Thanks

Stuart