In AMP configuration on a Zynq Processing System, when DPD v7.0/v7.1 is used on CPU1, it enables global timers.
During this enable sequence, the global timer gets reset automatically.
This can interfere with Linux and cause it to lock up (on CPU0) when it also needs to access global timers.
This is a known issue with the Digital Pre-Distortion (DPD) core.
The recommendation is to use the latest DPD files from the DPD lounge, where the issue is fixed.
Refer to (Xilinx Answer 66684) for the DPD IP version which includes the fix.
The DPD version used in (Xilinx Answer 65803) includes the fix for the issue.