Re: [PATCH] Disable the non working eMMC on Zoom2/3

[Tony Lindgren <tony@atomide.com>]

* Madhusudhan <madhu.cr@ti.com> [100401 15:54]:

<snip>

> > Ref [1] I believe tony has the brand new zoom board - I think your
> > assumption here might be flawed..
> > 
> 
> Wait, I just looked up the serial number on the board. The one I was using
> is a pilot version where this problem exists.
> 
> I happen to get an other board which is production unit with ser # 1013089
> Rev B. The eMMC on this board has no issue. It reports the EXT_CSD Rev 2
> which is correct and works fine.
> 
> http://omappedia.org/wiki/Zoom_Resources
> 
> There is a table here which could help.
> 
> Tony, do you care to just look up the serial number of your board?

Sorry for the delay in replying, I've been travelling for a few weeks
and been in meetings quite a bit. Anyways, it's a 1013037 REV A board,
which seems to be production in the table above.
 
> But again there are several boards out there which could have this
> non-working eMMC. So what do we do?? It does not make sense to keep
> something enabled which does not work.

There's arm kernel parameter for ATAG_REVISION that can be passed from
bootloader and then the board-*.c code can initialize things accordingly
based on the board revision.

Regards,

Tony


> > [1] http://marc.info/?l=linux-omap&m=126938456103707&w=2
>