xilinx_kc705: Minor Cleanup/Update.

litex_boards/platforms/xilinx_kc705.py

@@ -95,10 +95,10 @@ _io = [
             "AB19 AD16 AC19 AD17 AA18 AB18 AE18 AD18",
             "AG19 AK19 AG18 AF18 AH19 AJ19 AE19 AD19",
             "AK16 AJ17 AG15 AF15 AH17 AG14 AH15 AK15",
-            "AK8 AK6 AG7 AF7 AF8 AK4 AJ8 AJ6",
-            "AH5 AH6 AJ2 AH2 AH4 AJ4 AK1 AJ1",
-            "AF1 AF2 AE4 AE3 AF3 AF5 AE1 AE5",
-            "AC1 AD3 AC4 AC5 AE6 AD6 AC2 AD4"),
+            " AK8  AK6  AG7  AF7  AF8  AK4  AJ8  AJ6",
+            " AH5  AH6  AJ2  AH2  AH4  AJ4  AK1  AJ1",
+            " AF1  AF2  AE4  AE3  AF3  AF5  AE1  AE5",
+            " AC1  AD3  AC4  AC5  AE6  AD6  AC2  AD4"),
             IOStandard("SSTL15_T_DCI")),
         Subsignal("dqs_p",   Pins("AC16 Y19 AJ18 AH16 AH7 AG2 AG4 AD2"),
             IOStandard("DIFF_SSTL15")),

litex_boards/targets/xilinx_kc705.py

@@ -40,14 +40,20 @@ class _CRG(LiteXModule):
 
         # # #
 
+        # Clk/Rst.
+        clk200 = platform.request("clk200")
+        rst    = platform.request("cpu_reset")
+
+        # PLL.
         self.pll = pll = S7MMCM(speedgrade=-2)
-        self.comb += pll.reset.eq(platform.request("cpu_reset") | self.rst)
-        pll.register_clkin(platform.request("clk200"), 200e6)
+        self.comb += pll.reset.eq(rst | self.rst)
+        pll.register_clkin(clk200, 200e6)
         pll.create_clkout(self.cd_sys,    sys_clk_freq)
         pll.create_clkout(self.cd_sys4x,  4*sys_clk_freq)
         pll.create_clkout(self.cd_idelay, 200e6)
         platform.add_false_path_constraints(self.cd_sys.clk, pll.clkin) # Ignore sys_clk to pll.clkin path created by SoC's rst.
 
+        # IDelayCtrl.
         self.idelayctrl = S7IDELAYCTRL(self.cd_idelay)
 
 # BaseSoC ------------------------------------------------------------------------------------------