[U-Boot-Users] get_timer documentation

We use coldfire 5282

We need to know what is the parameter and return value of get_timer()

we wnat to use get_timer() to calculate time intervals in millisecond.

something like:

.... a = get_timer(0); /* do something */ b = get_timer(0); ....

in this case what is the measure unit of b-a? How can I obtain millisicends?

thanks