question: mx7ulp - LDO_ENABLED_MODE

Jorge Ramirez-Ortiz, Gmail jorge.ramirez.ortiz at gmail.com
Fri Jan 17 20:02:12 CET 2020


On 17/01/20 15:53:28, Fabio Estevam wrote:
> On Fri, Jan 17, 2020 at 3:40 PM Jorge Ramirez-Ortiz, Gmail
> <jorge.ramirez.ortiz at gmail.com> wrote:
> 
> > thanks a lot Favio. The part I am working with is 08SC. (not 05 or 07).
> > Is that the same as yours?
> 
> On the Embedded Artists board there is a 08SC i.MX7ULP version.
> 
> On the i.MX7ULP EVK that I have access to there is a 05SC.
> 
> On the 08SC part I do see that it comes with LDOEN turned on by default.
> 
> On the 05SC part it comes with LDOEN turned off by default.
> 
> I wondering if we should go ahead with this fix:
> http://code.bulix.org/5gfb8t-1094747

yes I think so.

> 
> In case LDO is already enabled, then we use the LDO settings that were
> configured by the ROM.

yeah sounds good to me. I triple check in case the M4 was setting the
LDO (who knows) but is not being done by my firmware. So it must be
the ROM

> 
> Does this fix the hang problem?

yes


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