From mboxrd@z Thu Jan 1 00:00:00 1970 Received: with ECARTIS (v1.0.0; list linux-mips); Fri, 30 Dec 2005 10:06:57 +0000 (GMT) Received: from smtp.uk.colt.net ([195.110.64.125]:45773 "EHLO smtp.uk.colt.net") by ftp.linux-mips.org with ESMTP id S8133581AbVL3KGk (ORCPT ); Fri, 30 Dec 2005 10:06:40 +0000 Received: from [10.0.1.4] (117-21-161-212.DSL.ONCOLT.COM [212.161.21.117]) by smtp.uk.colt.net (Postfix) with ESMTP id 299A0E2CF5 for ; Fri, 30 Dec 2005 09:59:39 +0000 (GMT) From: David Goodenough To: linux-mips@linux-mips.org Subject: Watchdog support on Broadcomm MIPS chips Date: Fri, 30 Dec 2005 10:08:35 +0000 User-Agent: KMail/1.8.2 MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200512301008.35788.david.goodenough@btconnect.com> Return-Path: X-Envelope-To: <"|/home/ecartis/ecartis -s linux-mips"> (uid 0) X-Orcpt: rfc822;linux-mips@linux-mips.org Original-Recipient: rfc822;linux-mips@linux-mips.org X-archive-position: 9755 X-ecartis-version: Ecartis v1.0.0 Sender: linux-mips-bounce@linux-mips.org Errors-to: linux-mips-bounce@linux-mips.org X-original-sender: david.goodenough@btconnect.com Precedence: bulk X-list: linux-mips I was referred to this list as I am interested in extending the kind of support that I am used to with SC200 based systems to the systems supported by OpenWrt such as the Netgear WGT634U which is built around a Broadcomm BCM947XX chip. In the bcm947xx arch directory on OpenWrt (and I am not quite sure how it got there) there is some code (marked as copyright Broadcomm) which talks about Watchdog functionality, but does not seem to link it into the rest of the linux watchdog functionality which Alan Cox seems to have either written or rewritten. There is a /dev/watchdog that is used by a watchdog daemon (in the OpenWrt case this would be the BusyBox watchdog function) to refresh the watchdog and stop the box rebooting itself. Does anyone know anything about watchdog functionality in the Broadcomm chips, or about the code that Broadcomm seem to have written for it and how to use it? Thanks in advance David