non-PCI libata

non-PCI libata

[Joe Istead]

Hello,

I have a question related to an LKML post on April 5, 2005:

http://lkml.org/lkml/2005/4/5/210

Preamble:
I'm developing a low level driver for a non-PCI AHCI controller.  In
particular, I'm using uClinux (2.6.x kernel) on a Nios II processor (Avalon
bus, etc etc).  

It looks like porting "drivers/scsi/ahci.c" to uClinux is the easiest way to
do this.  However, ahci.c depends on libata, and both of these are littered
with PCI-specific calls.

Question:
Is there a non-PCI libata (or, are there plans to make one)?

Thanks,
Joe.

Re: non-PCI libata

[Jeff Garzik]

Joe Istead wrote:
> Hello,
> 
> I have a question related to an LKML post on April 5, 2005:
> 
> http://lkml.org/lkml/2005/4/5/210
> 
> Preamble:
> I'm developing a low level driver for a non-PCI AHCI controller.  In
> particular, I'm using uClinux (2.6.x kernel) on a Nios II processor (Avalon
> bus, etc etc).  
> 
> It looks like porting "drivers/scsi/ahci.c" to uClinux is the easiest way to
> do this.  However, ahci.c depends on libata, and both of these are littered
> with PCI-specific calls.
> 
> Question:
> Is there a non-PCI libata (or, are there plans to make one)?

libata already supports non-PCI.  Another engineer is already using 
libata on his embedded non-PCI hardware.

You'll just have to modify AHCI to support non-PCI.

	Jeff