[PATCH 2/3] powerpc/esdhc: add property to disable the CMD23

[Kumar Gala]

On Sep 17, 2012, at 7:36 AM, Chris Ball wrote:

> Hi,
> 
> On Thu, Sep 13 2012, Kumar Gala wrote:
>>>> Can you list out which SoCs support it and which don't.  Having this list
>>>> will be useful in understanding which controller versions supported it.
>>>> 
>>> P1020, p1021, p1022, p1024, p1015 and p4080 can't support it.
>>> Mpc8536, p2020, and the other current DPAA silicon (e.g. p5020, p3041) support it.
>> 
>> Based on this, why don't we use the HOSTVER register to detect instead of device tree:
> 
> I've got a mild preference for handling quirk assignment in the DT
> rather than in driver code, so I'd prefer to just push the original
> patch to mmc-next as-is.  Does that sound okay?

Why?  I only ask because I agree with Scott that this means you have to update your device tree to get proper functionality.

> (I think the argument that there isn't going to be any new hardware
> with this problem is equally in favor of both methods.)

- k