From mboxrd@z Thu Jan 1 00:00:00 1970 Received: with ECARTIS (v1.0.0; list linux-mips); Mon, 24 Mar 2008 14:30:15 +0000 (GMT) Received: from rtsoft3.corbina.net ([85.21.88.6]:4068 "EHLO buildserver.ru.mvista.com") by ftp.linux-mips.org with ESMTP id S20027526AbYCXOaN (ORCPT ); Mon, 24 Mar 2008 14:30:13 +0000 Received: from [192.168.1.234] (unknown [10.150.0.9]) by buildserver.ru.mvista.com (Postfix) with ESMTP id BDD2F8814; Mon, 24 Mar 2008 19:30:30 +0400 (SAMT) Message-ID: <47E7BB4B.3080507@ru.mvista.com> Date: Mon, 24 Mar 2008 17:31:39 +0300 From: Sergei Shtylyov Organization: MontaVista Software Inc. User-Agent: Mozilla/5.0 (X11; U; Linux i686; rv:1.7.2) Gecko/20040803 X-Accept-Language: ru, en-us, en-gb MIME-Version: 1.0 To: linux-mips@linux-mips.org Cc: Nico Coesel Subject: Re: FW: Alchemy power managment code. References: <19CA9E279FDA5246B7D7A1C91A4AF7F40EF804@dealogicserver.DEALogic.nl> <47E7B970.30105@ru.mvista.com> In-Reply-To: <47E7B970.30105@ru.mvista.com> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Return-Path: X-Envelope-To: <"|/home/ecartis/ecartis -s linux-mips"> (uid 0) X-Orcpt: rfc822;linux-mips@linux-mips.org Original-Recipient: rfc822;linux-mips@linux-mips.org X-archive-position: 18475 X-ecartis-version: Ecartis v1.0.0 Sender: linux-mips-bounce@linux-mips.org Errors-to: linux-mips-bounce@linux-mips.org X-original-sender: sshtylyov@ru.mvista.com Precedence: bulk X-list: linux-mips 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