From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from metis.ext.pengutronix.de ([2001:6f8:1178:4:290:27ff:fe1d:cc33]) by merlin.infradead.org with esmtps (Exim 4.76 #1 (Red Hat Linux)) id 1U3jjn-00039M-Qx for barebox@lists.infradead.org; Fri, 08 Feb 2013 08:55:16 +0000 Received: from isonoe.hi.pengutronix.de ([10.1.0.76]) by metis.ext.pengutronix.de with esmtp (Exim 4.72) (envelope-from ) id 1U3jjl-00086p-02 for barebox@lists.infradead.org; Fri, 08 Feb 2013 09:55:13 +0100 From: Juergen Beisert Date: Fri, 8 Feb 2013 09:54:00 +0100 MIME-Version: 1.0 Content-Disposition: inline Message-Id: <201302080954.00450.jbe@pengutronix.de> List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: barebox-bounces@lists.infradead.org Errors-To: barebox-bounces+u.kleine-koenig=pengutronix.de@lists.infradead.org Subject: RFC, i.MX28 related To: barebox@lists.infradead.org Hi list, the i.MX28 SoC has a nice "feature" which prevents the "intended" usage of its watchdog. When the SoC is powered via its 5 V power supply input the watchdog triggers a simple system reset when it barks. But when the SoC is powered via the battery supply input only, the watchdog powers off the whole chip instead, because it resets the PMIC. But we are in luck: a register bit exists to select a system reset or power off for the battery powered case when the watchdog barks. It only defaults to the power off setting after reset. Should we re-program this bit to the system reset setting for all i.MX28 based system (e.g. in the i.MX28 generic part of Barebox) or better on a board by board base? jbe -- Pengutronix e.K. | Juergen Beisert | Linux Solutions for Science and Industry | http://www.pengutronix.de/ | _______________________________________________ barebox mailing list barebox@lists.infradead.org http://lists.infradead.org/mailman/listinfo/barebox