In the i.mx6 6Dual/6Quad Automotive and Infotainment Applications Processors datasheet rev 2.3 (page 21) it states that -
"VDD_SOC_CAP and VDD_PU_CAP must be equal."
However the latest version of i.mx6 u-boot has these voltages set to 1.2 volts and 1.15 volts.
I have also read that you can turn off the VDDPU_CAP ldo if VPU and GPU are not used.
Is the datasheet correct ?