In message OF4F301F74.750FBEB3-ON42256E4C.0025CE19-08256E4C.00260CD9@mksinternal.com you wrote:

I am having a problem enabling the watchdog in u-boot. It causing the Linux load to crash.

Most probably Linux is not crashing but just reset by the watchdog.

Do I have to enable watchdog support in u-boot for the mpc_8xx driver to run?

You always have to configure both sides to match, i. e. if you enable the watchdog in U-Boot you must do so in Linux, and if you don;t enable it in U-Boot you must not enable it in Linux (althought in that case you will not crash the system).

If so what can I about the Linux crashes?

Please define "crash". Does the board simply reset (like after a watchdog timeout), or is there any error message, or what?

Best regards,

Wolfgang Denk