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Linux/AM3358: Linux restarts instead of shutting down

Mark Miliano
Intellectual 895 points

Part Number: AM3358

Tool/software: Linux

Hello,

I'm having a issue while using any version of Arago on a custom AM3358 board where I  attempt to "shutdown now" and Linux looks like it's shutting down, then reboots. I have a Beaglebone black which I have run the same OS builds on and the shutdown and halt commands work fine and completely turns off the device. 

I have probed the PGOOD line and it does transition from logic "high" to "low" then "high" again during the shutdown procedure.

I have also noticed that as Linux is shutting down with the "shutdown now" command- I see that the power briefly dips down from about 400mA to 20mA, then the reboot begins.

The "halt" command on the other hand does actually halt the progress of Linux, but the power is still be drawn at the same level- I do not see any change in supply level

Any help on this issue would be appreciated.

Thank you,

Mark