From mboxrd@z Thu Jan 1 00:00:00 1970 From: yanh Subject: Re: [loongson-PATCH-v1 24/27] fixup for FUJITSU disk Date: Tue, 26 May 2009 09:21:30 +0800 Message-ID: <1243300890.9819.40.camel@localhost.localdomain> References: <1243230339.9819.18.camel@localhost.localdomain> <4A1A4A54.6090401@lemote.com> <200905251656.25357.bzolnier@gmail.com> <4A1AEBF7.7040402@ru.mvista.com> Reply-To: yanh@lemote.com Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: In-Reply-To: Sender: linux-scsi-owner@vger.kernel.org To: "Martin K. Petersen" Cc: Sergei Shtylyov , Bartlomiej Zolnierkiewicz , =?gb2312?Q?=BA=FA=BA=E9=B1=F8?= , wuzhangjin@gmail.com, linux-mips@linux-mips.org, Ralf Baechle , IDE/ATA development list , Linux Kernel , linux-scsi , Philippe Vachon , Zhang Le , Zhang Fuxin , Arnaud Patard , loongson-dev@googlegroups.com, gnewsense-dev@nongnu.org, Nicholas Mc Guire , Liu Junliang , Erwan Lerale List-Id: linux-ide@vger.kernel.org =E5=9C=A8 2009-05-25=E4=B8=80=E7=9A=84 15:10 -0400=EF=BC=8CMartin K. Pe= tersen=E5=86=99=E9=81=93=EF=BC=9A > >>>>> "Sergei" =3D=3D Sergei Shtylyov write= s: >=20 > >> Could you please explain the issue with platform specific code a b= it > >> more? >=20 > >> Is it related to a cable detection by any chance? >=20 > Sergei> I guess it's rdmsr()/wrmsr()... currently, we just commented out the rdmsr/wrmsr. and we use pci VSA to access it.=20 >=20 > Those are only used when the driver is explicitly loaded with > use_msr=3D1. The default is to use PCI config space/VSA. >=20 > In any case I have yet to see a CS5536 system whose BIOS sets the cab= le > detection bit. If that's the problem I guess we could add a quirk fl= ag > to override the (lack of) BIOS setting. >=20 This may be the cause that udma5 cannot be set. -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" i= n the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html