From: yanh <yanh@lemote.com>
To: "Martin K. Petersen" <martin.petersen@oracle.com>
Cc: "Sergei Shtylyov" <sshtylyov@ru.mvista.com>,
"Bartlomiej Zolnierkiewicz" <bzolnier@gmail.com>,
胡洪兵 <huhb@lemote.com>,
wuzhangjin@gmail.com, linux-mips@linux-mips.org,
"Ralf Baechle" <ralf@linux-mips.org>,
"IDE/ATA development list" <linux-ide@vger.kernel.org>,
"Linux Kernel" <linux-kernel@vger.kernel.org>,
linux-scsi <linux-scsi@vger.kernel.org>,
"Philippe Vachon" <philippe@cowpig.ca>,
"Zhang Le" <r0bertz@gentoo.org>,
"Zhang Fuxin" <zhangfx@lemote.com>,
"Arnaud Patard" <apatard@mandriva.com>,
loongson-dev@googlegroups.com, gnewsense-dev@nongnu.org,
"Nicholas Mc Guire" <hofrat@hofr.at>,
"Liu Junliang" <liujl@lemote.com>,
"Erwan Lerale" <erwan@thiscow.com>
Subject: Re: [loongson-PATCH-v1 24/27] fixup for FUJITSU disk
Date: Tue, 26 May 2009 09:21:30 +0800 [thread overview]
Message-ID: <1243300890.9819.40.camel@localhost.localdomain> (raw)
In-Reply-To: <yq1tz39dmmn.fsf@sermon.lab.mkp.net>
在 2009-05-25一的 15:10 -0400，Martin K. Petersen写道：
> >>>>> "Sergei" == Sergei Shtylyov <sshtylyov@ru.mvista.com> writes:
>
> >> Could you please explain the issue with platform specific code a bit
> >> more?
>
> >> Is it related to a cable detection by any chance?
>
> Sergei> I guess it's rdmsr()/wrmsr()...
currently, we just commented out the rdmsr/wrmsr.
and we use pci VSA to access it.
>
> Those are only used when the driver is explicitly loaded with
> use_msr=1. The default is to use PCI config space/VSA.
>
> In any case I have yet to see a CS5536 system whose BIOS sets the cable
> detection bit. If that's the problem I guess we could add a quirk flag
> to override the (lack of) BIOS setting.
>
This may be the cause that udma5 cannot be set.
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next prev parent reply other threads:[~2009-05-26 1:21 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <cover.1242855716.git.wuzhangjin@gmail.com>
2009-05-20 22:12 ` [loongson-PATCH-v1 24/27] fixup for FUJITSU disk wuzhangjin
2009-05-22 18:32 ` Bartlomiej Zolnierkiewicz
2009-05-23 7:11 ` yanh
2009-05-23 11:47 ` Bartlomiej Zolnierkiewicz
2009-05-25 5:45 ` yanh
2009-05-25 7:35 ` 胡洪兵
2009-05-25 14:56 ` Bartlomiej Zolnierkiewicz
2009-05-25 19:05 ` Sergei Shtylyov
2009-05-25 19:10 ` Martin K. Petersen
2009-05-25 19:17 ` Sergei Shtylyov
2009-05-26 1:21 ` yanh [this message]
2009-05-26 7:56 ` Alan Cox
2009-05-26 14:39 ` yanh
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