From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 55DFDC433EF for ; Sun, 14 Nov 2021 13:47:11 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 0A18160FC2 for ; Sun, 14 Nov 2021 13:47:10 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 0A18160FC2 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=rosenzweig.io Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=lists.infradead.org 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:In-Reply-To:MIME-Version:References: Message-ID:Subject:Cc:To:From:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=ia643Q4rNBk9PXCjvgPdxUC3IogRoBqZkNTvu7XSXdE=; b=mynSBOn5046OAw Xpg2qvlHKWMoorsMGwVPfM12Bv7Cva/5lqu3RakU/PV1VFTz6jiWexzS/qIrHtTYPymoIIiFScMDY bDKm2TT1KLVv4Gc0tVLm9i37sPF0tzlhvT46f8iiq3BpDw0CBgYhz/aZABqi2fu5H82065LGLaTL5 Ft+Nvv6ATXCiVjptiTe8wRyLyhl3PKZUq5SG5uSlEOnxSDfy7qHncYixFaiTxgy5D9yQyENJ9L5U7 Gme3nZtmm0xH/spbICIK0OlEC8j6zzDkDg2hxm039aQV5Pdn9sD6yhDDrN/wdEzyBuA657PJjJ7Q8 AGGbWTIGbmFGtcCjcQNQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1mmFpQ-00Di1F-3u; Sun, 14 Nov 2021 13:45:52 +0000 Received: from rosenzweig.io ([138.197.143.207]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1mmFpM-00Di0B-Q9 for linux-arm-kernel@lists.infradead.org; Sun, 14 Nov 2021 13:45:50 +0000 Date: Sun, 14 Nov 2021 08:18:16 -0500 From: Alyssa Rosenzweig To: Sven Peter Cc: Wim Van Sebroeck , Guenter Roeck , Hector Martin , Rob Herring , Mark Kettenis , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-watchdog@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: Re: [PATCH 2/2] watchdog: Add Apple SoC watchdog driver Message-ID: References: <20211113094732.73889-1-sven@svenpeter.dev> <20211113094732.73889-2-sven@svenpeter.dev> <95dea968-f452-4ba0-9b66-c9bc4269a52c@www.fastmail.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <95dea968-f452-4ba0-9b66-c9bc4269a52c@www.fastmail.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20211114_054548_972209_DE2FF8AF X-CRM114-Status: GOOD ( 10.67 ) X-BeenThere: linux-arm-kernel@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: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org > >> + * This HW block has three separate watchdogs. WD0 resets the machine > >> + * to recovery mode and is not very useful for us. WD1 and WD2 trigger a normal > >> + * machine reset. WD0 additionally supports a configurable interrupt. > > > > Do we have any idea what the difference between WD1 and WD2 is? > > I've never seen macOS write to WD2 when running in our hypervisor and only > found that one when I was looking at the rest of the MMIO region. > >From what I can tell it works exactly like WD1. Makes sense, thanks. _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel