Re: On SoC SATA controller driver implementation!!!

[Jeff Garzik <jeff@garzik.org>]

On 09/17/2010 05:54 AM, Murali N wrote:
> Hi All,
>
> I am implementing  a SATA driver for my SATA controller which is part of SoC.
> I had seen a generic AHCI controller driver in .35 (ahci_platform.c)
> which is used by SATA controllers part of the SoC and interacting to
> local bus.
>
> My doubts is:
> 1. Can i make use of above framework to implement my own controller
> driver? I know that i have to take care of the "init", "exit" and
> power management routines specific to my controller. Will this work?
> OR do i need to take care of any other additional considerations while
> implementing?

ahci_platform is not a framework, it is an AHCI driver, which uses the 
libata and libahci frameworks.

"will it work?" depends entirely on your controller's programming interface.


> I would like to see a reference drivers code which uses the platform
> AHCI controller driver(ahci_platform.c). Can anyone point me to the
> sources.
> My aim is to leverage already existing code as much as possible to
> make my controller works better.

ahci_platform.c and ahci.c use libahci.c framework.

Both use libata framework.

	Jeff