From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: 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 MIME-Version: 1.0 In-Reply-To: <20151208054232.GC10759@hr-amur2> Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-watchdog-owner@vger.kernel.org List-Id: linux-watchdog@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 >