From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tony Lindgren Subject: Re: kexec on Nokia Internet Tablets Date: Tue, 17 Feb 2009 13:46:12 -0800 Message-ID: <20090217214612.GB11928@atomide.com> References: <20090217213228.GH24800@guug.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from mho-01-bos.mailhop.org ([63.208.196.178]:58240 "EHLO mho-01-bos.mailhop.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750740AbZBQVqQ (ORCPT ); Tue, 17 Feb 2009 16:46:16 -0500 Content-Disposition: inline In-Reply-To: <20090217213228.GH24800@guug.org> Sender: linux-omap-owner@vger.kernel.org List-Id: linux-omap@vger.kernel.org To: Otto Solares Cc: linux-omap@vger.kernel.org * Otto Solares [090217 13:37]: > Hi all! > > I want to make kexec work on current Nokia Internet Tablets but > maybe someone here have a clue or better if a patch :) Do you need to patch anything for this, or does it work out of the box? > When I run a kexec enabled linux-omap kernel and try to boot the > production Maemo kernel or a linux-omap kernel I only succeed if > the serial-console flag in r&d mode is set, if not the device > just hangs. Sounds like something does not get correctly initialized.. > It seems as a timing problem because if I insert small delays to > the kexeced kernel via CONFIG_BOOT_PRINTK_DELAY it works too > without the serial-console flag set. > > Any idea what to debug or where to start? Well since the LCD is on, you could write a little function that writes the output to the LCD. You just need to find out the virtual address of the LCD and then add a function for displaying fonts.. Pretty easy to do. BTW, do you have some Maemo package for kexec? Tony