From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jean Pihet Subject: Re: Pandaboard boot problem Date: Wed, 16 Feb 2011 09:59:00 +0100 Message-ID: References: <20110204015301.GQ3322@atomide.com> <20110214163815.d488841f.jhnikula@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Return-path: Received: from mail-qw0-f46.google.com ([209.85.216.46]:59456 "EHLO mail-qw0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754343Ab1BPI7B (ORCPT ); Wed, 16 Feb 2011 03:59:01 -0500 Received: by qwa26 with SMTP id 26so1038131qwa.19 for ; Wed, 16 Feb 2011 00:59:01 -0800 (PST) In-Reply-To: <20110214163815.d488841f.jhnikula@gmail.com> Sender: linux-omap-owner@vger.kernel.org List-Id: linux-omap@vger.kernel.org To: Jarkko Nikula Cc: Tony Lindgren , linux-omap@vger.kernel.org Hi Jarkko, On Mon, Feb 14, 2011 at 3:38 PM, Jarkko Nikula wrote: > On Mon, 14 Feb 2011 15:01:30 +0100 > Jean Pihet wrote: > >> > If so, I've seen this same issue few times after having my panda >> > powered off for a while, for example over the weekend. >> > >> > What I've noticed is that leaving just u-boot prompt running >> > for a few minutes cures the problem somehow.. After that the >> > kernel will boot just fine. >> Unfortunately that is not helping. >> I am still investigating. For the moment the pandaboard is pretty useless ;( >> > Try to heat TWL6030 a little. My board seems to suffer some soldering > fault around it and the device keeps running if I warm up the chip with > a 40 W light bulb ~1-2 cm distance. That works! I heated the chip with a halogen heater at ~10cm distance and the board ran fine for 3 minutes after that. > It keeps running fine by using the Ubuntu kernel but I think reason is > that the EHCI is initialized there and the TWL draws more current and > thus heats up. That probably is the reason. > No idea why the u-boot runs fine. That would be nice to identify the root cause and get a SW workaround in place. The other solution is to invest in extra heaters or a sun tan machine in the office ;p > > -- > Jarkko > Thanks, Jean