[PATCH v3 2/2] ahci_platform: add support for CNS3xxx SoC devices
ben at trinity.fluff.org
Thu Jan 6 13:09:48 EST 2011
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?
Ben Dooks, ben at fluff.org, http://www.fluff.org/ben/
Large Hadron Colada: A large Pina Colada that makes the universe disappear.
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