Re: reference code for non-PCI libata complaint SATA for ARM boards.

[Jeff Garzik]

Alan Cox wrote:
> On Maw, 2005-10-25 at 17:41 +0530, Deven Balani wrote:
>
> > Hi All!
> >
> > I am currently writing a low-level driver for non-PCI SATA controller
> > in ARM platform.which uses libata-core.c for linux-2.4.25. Can any one
> > tell me any reference code available under linux.
>
>
> At the moment its a bit hard to do a non PCI driver because the core
> code assumes that there is a device structure (or pci_dev structure) for
> everything. Fixing that is a two line change for 2.6 (probably similar
> for 2.4) but Jeff Garzik rejected it.

In 2.6.x, libata needs no fixes to support non-PCI devices.

An out-of-tree driver for a non-PCI embedded board exists, and works 
100%.  Use of struct device and dma_xxx() means it is bus-agnostic. 
That's how the whole system was designed to work -- and work, it does.

None of this is true in 2.4.x, of course...

	Jeff


-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/