Critical Issue
Description
Partitioned designs that use the DDR2 SDRAM Controller fail
compilation at cke and odt pins.
This issue affects all designs that use the DDR2 SDRAM Controller.
Your design fails to compile.
Resolution
To compile your design successfully, in the .qsf file add the following command:
set_instance_assignment -name REMOVE_DUPLICATE_REGISTERS
OFF -to "ddr2_ctrl:ddr2_ctrl_ddr_sdram|ddr2_ctrl_auk_ddr_sdram: ddr2_ctrl_auk_ddr_sdram_inst|auk_ddr_controller:ddr_control|cke"
This issue will not be fixed.