| To: | linux-mips@linux-mips.org |
|---|---|
| Subject: | Re: FW: Alchemy power managment code. |
| From: | Sergei Shtylyov <sshtylyov@ru.mvista.com> |
| Date: | Mon, 24 Mar 2008 17:31:39 +0300 |
| Cc: | Nico Coesel <ncoesel@DEALogic.nl> |
| In-reply-to: | <47E7B970.30105@ru.mvista.com> |
| Organization: | MontaVista Software Inc. |
| Original-recipient: | rfc822;linux-mips@linux-mips.org |
| References: | <19CA9E279FDA5246B7D7A1C91A4AF7F40EF804@dealogicserver.DEALogic.nl> <47E7B970.30105@ru.mvista.com> |
| Sender: | linux-mips-bounce@linux-mips.org |
| User-agent: | Mozilla/5.0 (X11; U; Linux i686; rv:1.7.2) Gecko/20040803 |
I just wrote: > The TOY cpunter 0 clockevent driver is also need to be written for the recent kernel as CP0 timer stops ticking after wait insn is executed -- see arch/mips/au1000/common/time.c... And here's found another possible issue with Alchemy PM -- the CP0 counter counts at unpredictable frequency in idle state (after executing "wait"), so the MIPS clocksource will probably be unstable? WBR, Sergei |
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