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Clean shutdown

Started by jhane, July 27, 2020, 09:25:49 PM

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jhane

Hello,
We are implementing a design using the 821 SOM and trying to understand if the SOM supports a clean shutdown on power-off.  So when the power button is pressed, linux is shutdown before power is removed. 

thanks,
jeff

Oleksandr Kiyenko


jhane

Hi Oleksandr

  I have seen that; however, the ZynqMP has the PMU and it has some support for power management which talk to another driver in the kernel to do clean shutdown of linux.   The PMU provides an external processor to deal with the power management and I just wanted make sure that Trenz did not have shutdown logic in the system controller before I try to understand the PMU.

thank you,
jeff

Oleksandr Kiyenko

Hi Jeff,
there is no active power control in current revision of system controller firmware.

Best regards
Oleksandr Kiyenko