boards/platforms: add minimal kcu105 platform

litex/boards/platforms/kcu105.py

@@ -0,0 +1,37 @@
+from litex.build.generic_platform import *
+from litex.build.xilinx import XilinxPlatform, VivadoProgrammer
+
+
+_io = [
+    ("user_led", 0, Pins("AP8"), IOStandard("LVCMOS18")),
+    ("user_led", 1, Pins("H23"), IOStandard("LVCMOS18")),
+    ("user_led", 2, Pins("P20"), IOStandard("LVCMOS18")),
+    ("user_led", 3, Pins("P21"), IOStandard("LVCMOS18")),
+    ("user_led", 4, Pins("N22"), IOStandard("LVCMOS18")),
+    ("user_led", 5, Pins("M22"), IOStandard("LVCMOS18")),
+    ("user_led", 6, Pins("R23"), IOStandard("LVCMOS18")),
+    ("user_led", 7, Pins("P23"), IOStandard("LVCMOS18")),
+
+    ("clk125", 0,
+        Subsignal("p", Pins("G10"), IOStandard("LVDS")),
+        Subsignal("n", Pins("F10"), IOStandard("LVDS"))
+    ),
+
+    ("serial", 0,
+        Subsignal("cts", Pins("L23")),
+        Subsignal("rts", Pins("K27")),
+        Subsignal("tx", Pins("K26")),
+        Subsignal("rx", Pins("G25")),
+        IOStandard("LVCMOS18")
+	),
+]
+
+class Platform(XilinxPlatform):
+    default_clk_name = "clk125"
+    default_clk_period = 8.0
+
+    def __init__(self):
+        XilinxPlatform.__init__(self, "xcku040-ffva1156-2-e", _io, toolchain="vivado")
+
+    def create_programmer(self):
+        return VivadoProgrammer()