When I follow the instructions in this "ZU Example - Power Off Suspend" article, the APU Only Restart fails after Power Off Suspend with a "Kernel panic".
This issue will be fixed in PetaLinux 2019.1 with a commit on the PMUFW called:
"zynqmp_pmufw: Store and restore LPD SLCR_SECURE registers during POS".
The link to the commit is NOT public at this time.
Please contact Xilinx Support if this feature is required in your 2018.x system.
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