[PATCH v3 2/2] ahci_platform: add support for CNS3xxx SoC devices
mkl0301 at gmail.com
Thu Jan 6 13:14:12 EST 2011
2011/1/7 Ben Dooks <ben at trinity.fluff.org>:
> On Fri, Jan 07, 2011 at 02:04:33AM +0800, Lin Mac wrote:
>> Hi Jeff,
>> 2011/1/7 <mkl0301 at gmail.com>:
>> > From: Mac Lin <mkl0301 at 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?
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