OMAP L-138 McBSP clock to a DECT slave

Hi,

I want to connect the McBSP master to a DECT slave.  The DECT accepts clocks freq of 512khz, 768khz, 1.536Mhz and 2.048Mhz.  The OMAP has a 24Mhz crystal which I cannot find a combination of divider settings to match with the DECT freq.  Does anyone knows what the divider settings should be or I have to chang the OMAP crystal freqency to match?

Regards

Kenny Cheung