From: mkl0301@gmail.com (Lin Mac)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v3 2/2] ahci_platform: add support for CNS3xxx SoC devices
Date: Fri, 7 Jan 2011 02:14:12 +0800 [thread overview]
Message-ID: <AANLkTimA4HvL2b-JAooR2out-19cEvBYUNYGFZz-VMwQ@mail.gmail.com> (raw)
In-Reply-To: <20110106180948.GX27131@trinity.fluff.org>
2011/1/7 Ben Dooks <ben@trinity.fluff.org>:
> On Fri, Jan 07, 2011 at 02:04:33AM +0800, Lin Mac wrote:
>> Hi Jeff,
>>
>> 2011/1/7 ?<mkl0301@gmail.com>:
>> > From: Mac Lin <mkl0301@gmail.com>
>> >
>> > CNS3xxx override the softreset function of ahci_platform ahci_softreset by
>> > cns3xxx_ahci_softreset, which would retry ahci_do_softreset again with pmp=0 if
>> > pmp=15 failed, for the controller has problem receiving D2H Reg FIS of the
>> > different PMP setting of the previous sent H2D Reg FIS.
>> >
>> > Following describe the isssue with original ahci_platform driver on
>> > linux-2.6.37-rc3, arm/cns3xxx.
>> >
>> > If CONFIG_SATA_PMP is enabled, while not using multiplier and connect the disks
>> > directly to the board, the disk cannot be found due to software reset always
>
>> complicated if more SoC-specific code added.
>> I really prefer the original way.
>
> Is there a reference to the original?
v2: http://www.spinics.net/lists/linux-ide/msg39766.html
Best Regards,
Mac Lin
prev parent reply other threads:[~2011-01-06 18:14 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-01-06 17:53 [PATCH v3 0/2] add CNS3xxx AHCI support mkl0301 at gmail.com
2011-01-06 17:53 ` [PATCH v3 1/2] ahci_platform: switch to module device table matching mkl0301 at gmail.com
2011-01-06 17:53 ` [PATCH v3 2/2] ahci_platform: add support for CNS3xxx SoC devices mkl0301 at gmail.com
2011-01-06 18:04 ` Lin Mac
2011-01-06 18:09 ` Ben Dooks
2011-01-06 18:14 ` Lin Mac [this message]
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