Fix synthesizer complaints

Author: alexforencich

rtl/axis_baser_rx_64.v

@@ -545,10 +545,10 @@ always @(posedge clk) begin
         end
     end else if (encoded_rx_hdr == SYNC_CTRL && (encoded_rx_data[7:0] == BLOCK_TYPE_START_4 || encoded_rx_data[7:0] == BLOCK_TYPE_OS_START)) begin
         if (PTP_TS_WIDTH == 96) begin
-            ptp_ts_reg[45:0] <= ptp_ts[45:0] + (PTP_PERIOD_NS * 2**16 + PTP_PERIOD_FNS) * 1.5;
+            ptp_ts_reg[45:0] <= ptp_ts[45:0] + (((PTP_PERIOD_NS * 2**16 + PTP_PERIOD_FNS) * 3) >> 1);
             ptp_ts_reg[95:48] <= ptp_ts[95:48];
         end else begin
-            ptp_ts_reg <= ptp_ts + (PTP_PERIOD_NS * 2**16 + PTP_PERIOD_FNS) * 1.5;
+            ptp_ts_reg <= ptp_ts + (((PTP_PERIOD_NS * 2**16 + PTP_PERIOD_FNS) * 3) >> 1);
         end
     end
 

rtl/axis_baser_tx_64.v

@@ -532,10 +532,10 @@ always @* begin
                     // need to send more idles - swap lanes
                     swap_lanes = 1'b1;
                     if (PTP_TS_WIDTH == 96) begin
-                        m_axis_ptp_ts_next[45:0] <= ptp_ts[45:0] + (PTP_PERIOD_NS * 2**16 + PTP_PERIOD_FNS) * 1.5;
+                        m_axis_ptp_ts_next[45:0] <= ptp_ts[45:0] + (((PTP_PERIOD_NS * 2**16 + PTP_PERIOD_FNS) * 3) >> 1);
                         m_axis_ptp_ts_next[95:48] <= ptp_ts[95:48];
                     end else begin
-                        m_axis_ptp_ts_next = ptp_ts + (PTP_PERIOD_NS * 2**16 + PTP_PERIOD_FNS) * 1.5;
+                        m_axis_ptp_ts_next = ptp_ts + (((PTP_PERIOD_NS * 2**16 + PTP_PERIOD_FNS) * 3) >> 1);
                     end
                     m_axis_ptp_ts_tag_next = s_axis_tuser >> 1;
                     m_axis_ptp_ts_valid_int_next = 1'b1;

rtl/axis_xgmii_rx_64.v

@@ -516,10 +516,10 @@ always @(posedge clk) begin
         end
     end else if (xgmii_rxc[4] && xgmii_rxd[39:32] == XGMII_START) begin
         if (PTP_TS_WIDTH == 96) begin
-            ptp_ts_reg[45:0] <= ptp_ts[45:0] + (PTP_PERIOD_NS * 2**16 + PTP_PERIOD_FNS) * 1.5;
+            ptp_ts_reg[45:0] <= ptp_ts[45:0] + (((PTP_PERIOD_NS * 2**16 + PTP_PERIOD_FNS) * 3) >> 1);
             ptp_ts_reg[95:48] <= ptp_ts[95:48];
         end else begin
-            ptp_ts_reg <= ptp_ts + (PTP_PERIOD_NS * 2**16 + PTP_PERIOD_FNS) * 1.5;
+            ptp_ts_reg <= ptp_ts + (((PTP_PERIOD_NS * 2**16 + PTP_PERIOD_FNS) * 3) >> 1);
         end
     end
 

rtl/axis_xgmii_tx_64.v

@@ -479,10 +479,10 @@ always @* begin
                     // need to send more idles - swap lanes
                     swap_lanes = 1'b1;
                     if (PTP_TS_WIDTH == 96) begin
-                        m_axis_ptp_ts_next[45:0] <= ptp_ts[45:0] + (PTP_PERIOD_NS * 2**16 + PTP_PERIOD_FNS) * 1.5;
+                        m_axis_ptp_ts_next[45:0] <= ptp_ts[45:0] + (((PTP_PERIOD_NS * 2**16 + PTP_PERIOD_FNS) * 3) >> 1);
                         m_axis_ptp_ts_next[95:48] <= ptp_ts[95:48];
                     end else begin
-                        m_axis_ptp_ts_next = ptp_ts + (PTP_PERIOD_NS * 2**16 + PTP_PERIOD_FNS) * 1.5;
+                        m_axis_ptp_ts_next = ptp_ts + (((PTP_PERIOD_NS * 2**16 + PTP_PERIOD_FNS) * 3) >> 1);
                     end
                     m_axis_ptp_ts_tag_next = s_axis_tuser >> 1;
                     m_axis_ptp_ts_valid_int_next = 1'b1;