CPRI IP cores that target an Arria II GZ, Stratix IV, or Stratix
V device fail recovery timing. Specifically, the path from the
reset signal to the internal
local_reset signal violates
the IP core timing requirements.
To work around this issue, in your Quartus II Settings file (.qsf), add the following assignment to demote the global reset signal:
set_instance_assignment -name GLOBAL_SIGNAL OFF -to *rx_digitalreset_cpri_clk_sync2
This issue will be fixed in a future version of the CPRI MegaCore function.