From mboxrd@z Thu Jan 1 00:00:00 1970 From: Siarhei Siamashka Subject: Re: problem with n810 boot up Date: Thu, 7 Jan 2010 02:33:30 +0200 Message-ID: <201001070233.36120.siarhei.siamashka@gmail.com> References: <200912290152.16357.luke@dashjr.org> <20100106224520.GA29239@gandalf> <4B45167F.8020605@gmail.com> Mime-Version: 1.0 Content-Type: multipart/signed; boundary="nextPart7706782.y0DziGGMCy"; protocol="application/pgp-signature"; micalg=pgp-sha1 Content-Transfer-Encoding: 7bit Return-path: Received: from mail-fx0-f225.google.com ([209.85.220.225]:33496 "EHLO mail-fx0-f225.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752161Ab0AGAdl (ORCPT ); Wed, 6 Jan 2010 19:33:41 -0500 Received: by fxm25 with SMTP id 25so11259977fxm.21 for ; Wed, 06 Jan 2010 16:33:39 -0800 (PST) In-Reply-To: <4B45167F.8020605@gmail.com> Sender: linux-omap-owner@vger.kernel.org List-Id: linux-omap@vger.kernel.org To: Francisco Alecrim Cc: "linux-omap@vger.kernel.org" --nextPart7706782.y0DziGGMCy Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Content-Disposition: inline On Thursday 07 January 2010, Francisco Alecrim wrote: > Hi/Ol=E1 Balbi, :) > > Felipe Balbi wrote: > > Hi, > > > > On Wed, Jan 06, 2010 at 06:11:10PM -0400, Francisco Alecrim wrote: > >> Thanks! Now it goes to rootfs and continue the boot, but device > >> power-off after 10-20 seconds. There is no error message to help. :( > > > > watchdog ? > > > > how about disabling watchdog with flasher ?? > > I'm using the flags (no-omap-wd,no-retu-wd,no-lifeguard-reset) > recommended by Kalle[1]. This's not the problem. :( If I read these recommendations correctly, they tell to *clear* these R&D flags. So probably it's better not to have them enabled. Moreover, based on the following post, watchdog is hardwired and just can't= be disabled by any software methods: http://lists.maemo.org/pipermail/maemo-developers/2007-June/010650.html Your powerdown problem is exactly caused by a watchdog. Earlier a solution = was=20 to have a script which would kick watchdog periodically. But right now it is kicked automatically in the kernel if CONFIG_CBUS_RETU_WDT option is enable= d. You also need to enable CONFIG_WATCHDOG, CONFIG_CBUS and probably some other stuff. This all also means that CBUS is critical for correct N8x0 operation and th= ese devices simply can't work without it at all. Hope this information helps. =2D-=20 Best regards, Siarhei Siamashka --nextPart7706782.y0DziGGMCy Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.6 (GNU/Linux) iD8DBQBLRSvgvyB/CfYEEt4RAu9ZAJ9GRJcLJ783y+1ab3L3DQMFIny6UQCgsB5X bdR4ZOOqHYsetnxH+K5XxFs= =PKCJ -----END PGP SIGNATURE----- --nextPart7706782.y0DziGGMCy--