From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tony Lindgren Subject: Re: am3517: failed to boot 3.10-rc1 Date: Thu, 16 May 2013 11:12:36 -0700 Message-ID: <20130516181235.GH5600@atomide.com> References: <519202DC.10100@visionsystems.de> <20130514125216.GE21107@arwen.pp.htv.fi> <519235C5.1010608@visionsystems.de> <5193493C.8020301@visionsystems.de> <519355FC.5050206@visionsystems.de> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from mho-02-ewr.mailhop.org ([204.13.248.72]:42486 "EHLO mho-02-ewr.mailhop.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751594Ab3EPSMj (ORCPT ); Thu, 16 May 2013 14:12:39 -0400 Content-Disposition: inline In-Reply-To: <519355FC.5050206@visionsystems.de> Sender: linux-omap-owner@vger.kernel.org List-Id: linux-omap@vger.kernel.org To: Yegor Yefremov Cc: balbi@ti.com, "linux-omap@vger.kernel.org" , "Shilimkar, Santosh" , "Mark A. Greer" , Maxim Podbereznyy * Yegor Yefremov [130515 02:37]: > On 15.05.2013 10:37, Yegor Yefremov wrote: > > On 14.05.2013 15:01, Yegor Yefremov wrote: > >> On 14.05.2013 14:52, Felipe Balbi wrote: > >>> On Tue, May 14, 2013 at 11:24:44AM +0200, Yegor Yefremov wrote: > >>>> Trying to boot 3.10-rc1 on an am3515 based board. With the same > >>>> .config as 3.7 the system comes to RTC stops there. I've also tried > >>>> make omap2plus_defconfig with no visible difference. I'm booting from > >>>> MMC card and it will be detected by the system. Kernel is from > >>>> http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git, latest > >>>> commit f722406faae2d073cc1d01063d1123c35425939e. Are there any pending > >>>> patches needed to boot on am3517? > >>> does v3.9 work ? Can you bisect ? > >> > >> 'git checkout v3.9' version is working, will try to bisect. > > > > This is bisect's result: > > > > f7b861b7a6d9d1838cbbb5f4053e61578b86d134 is the first bad commit > > commit f7b861b7a6d9d1838cbbb5f4053e61578b86d134 > > Author: Thomas Gleixner > > Date: Thu Mar 21 22:49:38 2013 +0100 > > > > arm: Use generic idle loop > > > > Use the generic idle loop and replace enable/disable_hlt with the > > respective core functions. > > > > Signed-off-by: Thomas Gleixner > > Cc: Linus Torvalds > > Cc: Rusty Russell > > Cc: Paul McKenney > > Cc: Peter Zijlstra > > Reviewed-by: Cc: Srivatsa S. Bhat > > Cc: Magnus Damm > > Cc: Russell King > > Tested-by: Kevin Hilman # OMAP > > Link: http://lkml.kernel.org/r/20130321215233.826238797@linutronix.de > > > > :040000 040000 887517403888ff3947bce216aa4c1ff3ce3af434 8dc5236688a80fc64fa4112ce6136ecf3a19bac9 M arch > > We had such a problem long ago (https://patchwork.kernel.org/patch/1220061/ and http://www.spinics.net/lists/arm-kernel/msg168865.html) and the workaround was to use hohlt in kernel parameters. But with this patch the "nohlt" has gone. So now we need a solution, that fixes the root of the problem. Hmm at least am3703 boots just fine with v3.10-rc1 except for the deeper idle states not working properly without the patch I posted. And looks like the PM for DT based booting still needs a bit work. Regards, Tony