Re: SATA disk detect problem with silicon image 3132

[Tejun Heo <htejun@gmail.com>]

KueiHuan Chen wrote:
> Hello,
> 
>   I have some problem in detect sata disk with silicon image 3132 in
> Marvell platform (arm).
> 
>   I am using kernel 2.6.24 with silicon image 3132 in Marvell 5281 /
> 6281 platform(Driver is sata_sil24). both would has same situation
> like the messages below.
> 
>   The problem is when the 3132 has disk on it, it would know it. But
> the identify command would timeout. After this, all ports would not
> responce for any hotplug event.
> 
>   The interesting thing is when i change the 3132 with marvell 6145
> sata chip(both using PCI-Express), and the driver using AHCI in
> Marvell 6281 platform.  It just work.
> 
>   And when i use 3132 in x86 or MPC85xx platform(same kernel), it also
> work fine. So i don't know where might has problem.  Is there any
> hint/idea for me ?

Looks like IRQ goes offline after the event.  sata_sil24 uses pretty
heavy hammer to reset the controller.  Maybe it somehow mysteriously
messes with IRQ delivery?

-- 
tejun