>  # Object file lists.
> -obj-y   := cpu.o mm.o clock-mx51.o devices.o
> +obj-y   := cpu.o mm.o clock-mx51.o devices.o cpu_wp-mx51.o

By hardcoding cpu_wp-mx51 here, you are making the assumption that even if
cpufreq is turned off, you'll still need the entire WP table to set the
cpu frequency. Why can't this be handled transparently in the clock code? If
the clock code does the calculations, every board doesn't need to first setup
calls to get_cpu_wp.


It has history. Not only cpufreq needs this  table, other freescale drivers also need it, like dvfs and busfreq drivers. So it is better to be there. I do agree clock should do its calculation by itself.
Agree about the rest.