Re: PCI SATA controllers on embedded, no-BIOS targets

[Sergei Shtylyov <sshtylyov@ru.mvista.com>]

Hello.

Kevin Hilman wrote:

>>>>I've now been using a patched sata_sil driver for a while to support PCI
>>>>IO space on my embedded ARM target.  Do you have any plans of pushing
>>>>support for this upstream?

>>>MMIO doesn't work at all?

>>>I'm a bit reluctant to push this into mainline, particularly when I
>>>feel that the sata_sil driver could still be updated to use only
>>>32-bit MMIO transactions without much problem.

>>Hello, Kevin, Jeff.

>>IIRC, Kevin's platform can't do any MMIO.  

> Actually, this platform (XScale IXP425, big-endian) can do MMIO.  I have
> an e100 PCI card on this board where the driver is using MMIO.  I also
> have a Promise Ultra133 PCI card, but not sure if that driver is using
> memory space or IO space.

    The legacy driver uses strictly I/O space; libata one uses MMIO but I 
guess you haven't tried that one...

WBR, Sergei