Underclocking the XO 1.75

[Arne Babenhauserheide]

Dear OLPC hackers,

I read the underclocking information on the custom bootloader page¹
und wondered how to achieve the same with the 1.75. I read in the
hardware specifications, that the processor should be able to go down
to ~400 MĤz, and I’d like to get it down as far as possible.

Can I adapt the commands to achieve that?

More specifically: How can I get the XO 1.75 to run at the lowest
possible CPU and Bus speed?

Any help is much appreciated!

Best wishes,
Arne

¹: http://wiki.laptop.org/go/Custom_bootloader#overclock