question: mx7ulp - LDO_ENABLED_MODE

Fabio Estevam festevam at gmail.com
Thu Jan 16 22:51:00 CET 2020


Hi Jorge,

On Thu, Jan 16, 2020 at 6:33 PM Fabio Estevam <festevam at gmail.com> wrote:

> > I think it is interesting that bit PMC0_CTRL_PMC1ON is already set so
> > I am wondering if you think it is possible - in your experience- that
> > ROM might have already configured LDO? or was this also the case -
> > this bit already set- when you tested the feature?

I think I understand the problem now.

We are currently acessing the PMC0 registers, which control the M4 side.

M4 has LDO enabled set by the ROM, so that's why you see it enabled by default.

We need to access the PMC1 registers instead of PMC0.

Could you please test these two patches? (They were only compiled tested)

Regards,

Fabio Estevam
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