Hello,
I am trying to set the dm-814x-evm into powersaving mode.
I followed the instructions I found here:
http://processors.wiki.ti.com/index.php/DM814x_AM387x_PM_Suspend_resume_overview
So, suspend should be well supported and deepsleep not really.
I have build a kernel with the options told there, like "suspend to ram",....
BUT, when using the given commandos for standby:
echo -n "mem" > /sys/power/state -> nothing happens
cat /sys/power/state -> nothing written in /sys/power/state
Commandos for DeepSleep:
mount -t debugfs debugfs /sys/kernel/debug -> it has been mounted correctly
echo 1 > /sys/kernel/debug/pm_debug/turnoff_idle_powerdomains -> nonexistent directory
or
echo 1 > /sys/kernel/debug/pm_debug/enable_deep_sleep -> nonexistent directory
SO, any ideas how to set it into standby mode and then wake it up by UART, or to enable DeepSleep?
I really thank you for any ideas!
Have a nice day!
Sebastian