On Jul 12, 2005, at 7:22 AM, Rodolfo Giometti wrote:
I'm just looking at linux support for power management on au1100 CPU and I found that there are a lot of problems on enabling it... it seems that current support cames from 2.4 series.
I provided most of the recent generic updates for the Au1xxx power management in the 2.4. It's quite a challenge since you also need hardware support for external peripheral control (which should be in the drivers) and a cooperating boot rom for deep sleep.
Is anybody dealing with it? I'd like to cooperate in order to have a functional support.
I'm sure there are some custom derivatives of this around. I'm not actively working on it since I don't have a project that requires the features. I don't really have the time to do so, either :-) The one thing to keep in mind is we probably shouldn't promote any of the variable processor frequency, as Alchemy has warned they don't qualify parts at anything but their stated operating values. You can run the processors at different frequencies, but this can require different external components to support it, not something we should be dynamically changing for a particular system design. Thanks. -- Dan
