I am looking to fully power down a battery backed beaglebone black running debian distro.
Looking through the TRM and TPS65217 document it appears that I can power device OFF (as opposed to SLEEP) by setting bit 7 in TPS65217 Status register and then causing PWE_EN pin to go low. Only way (under software control) that I can see to do this is via setting ALARM2 in RTC registers and setting POWER_ENABLE_EN bit (also referred to in thread https://groups.google.com/forum/#!searchin/beagleboard/PMIC_POWER_EN/beagleboard/K7DuusrJ6G4/ln4so6f0Vj4J) Makes sense, i2c control of TPS65217 is easy but I don't see how to write to RTC registers from user space. I'd appreciate any pointers - is it possible using device tree overlay, as I see promising looking end points in /sys/devices/ocp.3/44e3e000.rtc/power Thanks Colin -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
