Thread (23 messages) 23 messages, 5 authors, 2012-09-18

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

From: Chris Ball <hidden>
Date: 2012-09-11 20:59:18
Also in: linux-mmc

Hi,

On Tue, Sep 11 2012, Kumar Gala wrote:
thanks for the info.  Do you know what's required on controller side
to handle cards that support CMD23?

I'm trying to figure out if older controller's on FSL SoCs are missing
some feature to allow CMD23 to work (vs Auto-CMD23).
It seems plausible that it's just not implemented on these controllers.
It's a little strange, since the command's been specified for so long
and we haven't seen any other controllers with problems.  The patch
would be correct if this is true.

- Chris.
-- 
Chris Ball   [off-list ref]   <http://printf.net/>
One Laptop Per Child
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