[RFC PATCH] power-management elements for 603e/fsl

[Paul Mackerras]

Guennadi Liakhovetski writes:

> As some of you would know, it is not a real suspend-to-RAM, since kurobox' 
> hardware doesn't support powering down CPU and peripherals while keeping 
> RAM in self-refresh. So, this patch just sends the SoC and the CPU to 
> SLEEP. It also needs some extra patches for timer suspend / resume, so, 

The early powerbooks also put the CPU into sleep mode, rather than
powering it off, so I think you can say that what you are doing is
suspend to RAM, as long as it manages to reduce power consumption
substantially, and you have a way to wake it up (e.g. via a keypress
or a LAN packet).

> this alone will not work properly. Besides, I am not where to put and how 
> to call these functions. So far I put them in fsl namespace as that'll, 
> probably, be similar among Freescale chips? Maybe it's better to call this 
> mode standby, not str?

What you have done looks OK to me.  If we need to move things around
later, that can be done easily enough.

Paul.