[U-Boot] [PATCH] mmc: omap: follow TRM procedure to power on cards

Grazvydas Ignotas notasas at gmail.com
Mon Mar 19 17:53:43 CET 2012

On Mon, Mar 19, 2012 at 6:44 PM, Tom Rini <trini at ti.com> wrote:
> On 03/19/2012 06:50 AM, Grazvydas Ignotas wrote:
>> According to OMAP3 TRM, PBIASLITEPWRDNZ bits must be cleared while MMC
>> power supply is being enabled and is ramping up (those bits might be
>> left set by the previous bootloader). It doesn't say what happens if
>> this procedure is violated, but better not to risk here and do things
>> as required.
> While in favor of correctness (and putting / moving up reconciling Linux and
> U-Boot omap MMC drivers on my TODO list), does this help with the problem
> you had reported before?  Thanks!

Unfortunately not, but I'm still looking for a cause and might have
some more similar patches.


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