[U-Boot] [PATCH 01/13] mxs: Reset the EMI block on mx23

Marek Vasut marex at denx.de
Sat Feb 23 19:48:04 CET 2013


Dear Otavio Salvador,

> On Sat, Feb 23, 2013 at 2:41 PM, Marek Vasut <marex at denx.de> wrote:
> > Dear Otavio Salvador,
> > 
> >> On Sat, Feb 23, 2013 at 9:42 AM, Marek Vasut <marex at denx.de> wrote:
> >> > The real reason for memory instability was the fact that the EMI block
> >> > was gated and not reset throughout the boards' operation. This patch
> >> > resets the EMI block properly while also reverts the memory voltage
> >> > bump. The memory stability issues were caused by the EMI not being
> >> > reset properly and thus there is no longer need to run the memory at
> >> > higher voltage than it ought to run at.
> >> > 
> >> > This partly reverts 8303ed128a55519f19c5f11087032d4bc4e0537a .
> >> > 
> >> > Signed-off-by: Marek Vasut <marex at denx.de>
> >> 
> >> What the changes from v1? Last time I tested it, it broke mx23evk as
> >> it made it fail in mtest.
> > 
> > The MX23EVK reboots unconditionally when I attempt mtest with or without
> > this patch.
> 
> Here it works fine.
> 
> > And there's no previous version, this patch is V1. The stuff sent before
> > shall be ignored.
> 
> So does it change something from initial post?

I do not know, that's why this is V1.

Best regards,
Marek Vasut


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