Rule C105: Clock signal should be a global signal

Description

You may see the following warnings when running the Design Assistant tool in Quartus® II software on your compiled HPS design.

Resolution

Rule C105: Clock signal should be a global signal ;  <hierarchy>|hps_sdram:hps_sdram_inst|hps_sdram_pll:pll|afi_clk 

Rule C105: Clock signal should be a global signal ; <hierarchy>|hps_sdram:hps_sdram_inst|hps_sdram_pll:pll|pll_write_clk