[meta-freescale] Setting VDD_SOC in i.MX6Q
maillinglists18 at gmail.com
Mon Aug 27 01:00:16 PDT 2018
This is somewhat simple thing that turned out not to be so simple.
We have custom i.MX6Q based HW running Yocto 2.4 and Linux 4.1-2.0...
and VDDARM_IN is set to 1.425V. Also VDDSOC_IN is set to 1.425V. They
both come from external PMIC as usually do.
Now the VDD_SOC_CAP should be set to 1.375V without changing the
VDDARM_IN. I think this should be possible by setting the LDO_DIG(SOC)
That's the part that I couldn't figure out. I have following in device tree:
fsl,soc-operating-points = <
/* ARM kHz SOC-PU uV */
But that controls the PMIC and LDO. I just want to change the LDO
output (VDD_SOC_CAP). I only seem to be able to same both values not
Should that be possible and how to do it?
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