So with the Jetson TX2 we can configure carrier board regulators via I2C in configuration files e.g. by editing
tegra186-mb1-bct-pmic-quill-p3310-1000-c04.cfg and suchlike. Is there something similar for the Nano? I don’t see any similar configuration files in the source tree. Is the only option to modify U-Boot and add some code there?