From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933149AbbLHHDf (ORCPT ); Tue, 8 Dec 2015 02:03:35 -0500 Received: from bh-25.webhostbox.net ([208.91.199.152]:58845 "EHLO bh-25.webhostbox.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932744AbbLHHDe (ORCPT ); Tue, 8 Dec 2015 02:03:34 -0500 Subject: Re: An issue about sp5100 watchdog To: Huang Rui , Wim Van Sebroeck References: <20151208054232.GC10759@hr-amur2> Cc: Borislav Petkov , linux-watchdog@vger.kernel.org, linux-kernel@vger.kernel.org From: Guenter Roeck Message-ID: <566680C3.2000501@roeck-us.net> Date: Mon, 7 Dec 2015 23:03:31 -0800 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.4.0 MIME-Version: 1.0 In-Reply-To: <20151208054232.GC10759@hr-amur2> Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit X-Authenticated_sender: linux@roeck-us.net X-OutGoing-Spam-Status: No, score=-1.0 X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - bh-25.webhostbox.net X-AntiAbuse: Original Domain - vger.kernel.org X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - roeck-us.net X-Get-Message-Sender-Via: bh-25.webhostbox.net: authenticated_id: linux@roeck-us.net X-Authenticated-Sender: bh-25.webhostbox.net: linux@roeck-us.net X-Source: X-Source-Args: X-Source-Dir: Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 12/07/2015 09:42 PM, Huang Rui wrote: > Hi all, > > I found an issue in some of AMD platforms about sp5100, that the MMIO > address (0x51413120) is already used by System RAM > (00100000-7c2befff)... > > [ 29.928096] sp5100_tco: SP5100/SB800 TCO WatchDog Timer Driver v0.05 > [ 29.928302] sp5100_tco: PCI Vendor ID: 0x1022, Device ID: 0x790b, Revision ID: 0x4a > [ 29.928319] sp5100_tco: Got 0x51413120 from indirect I/O > [ 29.928323] sp5100_tco: MMIO address 0x51413120 already in use > [ 29.928332] sp5100_tco: SBResource_MMIO is disabled(0xe000a0) > [ 29.928333] sp5100_tco: failed to find MMIO address, giving up. > If I understand the code correctly, the problem is really "SBResource_MMIO is disabled". Presumably that is done in the BIOS. No idea if anything can be done about that. Guenter > 00100000-7c2befff : System RAM > 01000000-017b1ab3 : Kernel code > 017b1ab4-01d4ce7f : Kernel data > 01ec4000-02008fff : Kernel bss > 7c2bf000-7c8befff : reserved > 7c8bf000-7cbbefff : ACPI Non-volatile Storage > 7cbb6000-7cbb9fff : MSFT0101:00 > 7cbba000-7cbbdfff : MSFT0101:00 > 7cbbf000-7cbfefff : ACPI Tables > 7cbff000-7cbfffff : System RAM > 7cc00000-7effffff : reserved > > Any idea? > > Thanks, > Rui > -- > To unsubscribe from this list: send the line "unsubscribe linux-watchdog" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html >