RISC timers in MPC 8260

Hi

We have a requirement of starting a 1 millisecond periodic timer in kernel space . The OS is monta vista linux kernel version 2.4 and Target is MPC 8260 . We are planning to use the RISC timers in CPM module. Can anyone send some sample reference code for starting a periodic timer for 1 millisecond using the RISC timers?

Thanks in Advance Abha