| To: | Bob Lees <bob@diamond.demon.co.uk> |
|---|---|
| Subject: | Re: Frequency (cpu speed) control on AU1100 |
| From: | Pete Popov <ppopov@mvista.com> |
| Date: | Tue, 30 Mar 2004 13:14:51 -0800 |
| Cc: | linux-mips@linux-mips.org |
| In-reply-to: | <200403302137.38123.bob@diamond.demon.co.uk> |
| Original-recipient: | rfc822;linux-mips@linux-mips.org |
| References: | <200403302137.38123.bob@diamond.demon.co.uk> |
| Sender: | linux-mips-bounce@linux-mips.org |
| User-agent: | Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.6) Gecko/20040113 |
Bob Lees wrote: Hi AllI am working on an AU1100 board (Aurora) from DSP Design and want to control the processor cpu speed, as in CPU_FREQ, type control. I suspect I am missing something somewhere, but I can't find any references to cpu speed control for the MIPS processors, specically the au1x range.Any clues? I assume you mean dynamically? Or at boot time only?There is an Au1x power management implementation that I haven't tested in a while. It allows you to scale the frequency using sysctl, if I remember correctly. Pete |
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