From mboxrd@z Thu Jan 1 00:00:00 1970 Delivery-date: Mon, 24 Jan 2022 16:20:09 +0100 Received: from metis.ext.pengutronix.de ([2001:67c:670:201:290:27ff:fe1d:cc33]) by lore.white.stw.pengutronix.de with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1nC18b-00C18T-2m for lore@lore.pengutronix.de; Mon, 24 Jan 2022 16:20:09 +0100 Received: from bombadil.infradead.org ([2607:7c80:54:e::133]) by metis.ext.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1nC18Z-0000rq-2t for lore@pengutronix.de; Mon, 24 Jan 2022 16:20:08 +0100 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=f0kzbEMjrc5OSXVKFpc30OpEcV22K/m9Co75IFeX5iM=; b=ZwHSK2FvWW5MO3 ibpLPQWVPIvVy+ohEwyQJEiMo2VmpvN5IOHSa9qlJNPRnDJQNFoNad/uIX00N5sZ2RC5Z1nimhOp3 FKs+e0+Ul8Gj114OaJWeyxgYoVfx/I+zqOFlfMM6LG3/d3q3IGVH3vtdBBvNtuesoa/dN4gyeCTAB hswGMjJ6OEo8ed565I+/eSp+m4lw9aePJ4htcmBm05cEAyzO6nWitf7P8/IyDTCfC708fV4Bjf9Ae oJADDKtEwf9DjU4AgWVxM/lqVOCgzhddAXpuZuiqBPvdmG3GiL3ilSMYN6jgjGUqEh0ftx0UMbKww GGv+tVKIk0v36t+hw0Sw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1nC17C-003o6N-Bj; Mon, 24 Jan 2022 15:18:42 +0000 Received: from metis.ext.pengutronix.de ([2001:67c:670:201:290:27ff:fe1d:cc33]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1nC172-003o3a-DG for barebox@lists.infradead.org; Mon, 24 Jan 2022 15:18:35 +0000 Received: from dude.hi.pengutronix.de ([2001:67c:670:100:1d::7]) by metis.ext.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1nC16y-0000Zm-Rz; Mon, 24 Jan 2022 16:18:28 +0100 Received: from afa by dude.hi.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1nC16y-00Du7F-AX; Mon, 24 Jan 2022 16:18:28 +0100 From: Ahmad Fatoum To: barebox@lists.infradead.org Cc: Ahmad Fatoum Date: Mon, 24 Jan 2022 16:18:27 +0100 Message-Id: <20220124151827.3313412-6-a.fatoum@pengutronix.de> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20220124151827.3313412-1-a.fatoum@pengutronix.de> References: <20220124151827.3313412-1-a.fatoum@pengutronix.de> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220124_071832_529647_7577BBBF X-CRM114-Status: GOOD ( 10.68 ) X-BeenThere: barebox@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list 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" X-SA-Exim-Connect-IP: 2607:7c80:54:e::133 X-SA-Exim-Mail-From: barebox-bounces+lore=pengutronix.de@lists.infradead.org X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on metis.ext.pengutronix.de X-Spam-Level: X-Spam-Status: No, score=-4.7 required=4.0 tests=AWL,BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED,SPF_HELO_NONE,SPF_NONE autolearn=unavailable autolearn_force=no version=3.4.2 Subject: [PATCH 6/6] Documentation: user: watchdog: note new wd -x option X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on metis.ext.pengutronix.de) wd command documentation is generated automatically and will list the new -x option. It's still a good idea to reference this in the watchdog user doc as well. Do so. Signed-off-by: Ahmad Fatoum --- Documentation/user/watchdog.rst | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/Documentation/user/watchdog.rst b/Documentation/user/watchdog.rst index ff400317a0bc..0220965598ed 100644 --- a/Documentation/user/watchdog.rst +++ b/Documentation/user/watchdog.rst @@ -10,6 +10,15 @@ the bootloader. For these scenarios barebox provides the watchdog framework with the following functionality and at least ``CONFIG_WATCHDOG`` should be enabled. +Disabling for development +~~~~~~~~~~~~~~~~~~~~~~~~~ + +The shorthand command ``wd -x`` will disable all watchdogs. +If hardware (or driver) doesn't support turning off the watchdog, +an autpoller will be registered to periodically feed watchdogs. +This should only be needed for development. +See :ref:`boot-watchdog-timeout` for how to use the watchdog in the field. + Polling ~~~~~~~ @@ -98,6 +107,8 @@ device tree or via the ``priority`` device parameter. Normally, watchdogs that have a wider effect should be given the higher priority (e.g. PMIC watchdog resetting the board vs. SoC's watchdog resetting only itself). +.. _boot-watchdog-timeout: + Boot Watchdog Timeout ~~~~~~~~~~~~~~~~~~~~~ -- 2.30.2 _______________________________________________ barebox mailing list barebox@lists.infradead.org http://lists.infradead.org/mailman/listinfo/barebox