ID:186315 DLL "<name>" is operating at frequency <name>, but target device can support only a maximum clock frequency of <name>

CAUSE: You either used the altdqs megafunction or assigned the DQS Frequency logic option setting to a DQS I/O pin. The DQS frequency is locked by the specified delay-locked loop (DLL) to generate the DQS phase shift. The DLL may not operate correctly beyond the specified maximum frequency.

ACTION: Select a faster device or reduce the frequency.