boards/platforms: add papilio_pro

litex/boards/platforms/papilio_pro.py

@@ -0,0 +1,61 @@
+from litex.gen.build.generic_platform import *
+from litex.gen.build.xilinx import XilinxPlatform
+from litex.gen.build.xilinx.programmer import XC3SProg
+
+
+_io = [
+    ("user_led", 0, Pins("P112"), IOStandard("LVCMOS33"), Drive(24), Misc("SLEW=QUIETIO")),
+
+    ("clk32", 0, Pins("P94"), IOStandard("LVCMOS33")),
+
+    ("serial", 0,
+        Subsignal("tx", Pins("P105"), IOStandard("LVCMOS33"), Misc("SLEW=SLOW")),
+        Subsignal("rx", Pins("P101"), IOStandard("LVCMOS33"), Misc("PULLUP"))
+    ),
+
+    ("spiflash", 0,
+        Subsignal("cs_n", Pins("P38")),
+        Subsignal("clk", Pins("P70")),
+        Subsignal("mosi", Pins("P64")),
+        Subsignal("miso", Pins("P65"), Misc("PULLUP")),
+        IOStandard("LVCMOS33"), Misc("SLEW=FAST")
+    ),
+    ("spiflash2x", 0,
+        Subsignal("cs_n", Pins("P38")),
+        Subsignal("clk", Pins("P70")),
+        Subsignal("dq", Pins("P64", "P65")),
+        IOStandard("LVCMOS33"), Misc("SLEW=FAST")
+    ),
+
+    ("sdram_clock", 0, Pins("P32"), IOStandard("LVCMOS33"), Misc("SLEW=FAST")),
+    ("sdram", 0,
+        Subsignal("a", Pins("P140 P139 P138 P137 P46 P45 P44",
+          "P43 P41 P40 P141 P35 P34")),
+        Subsignal("ba", Pins("P143 P142")),
+        Subsignal("cs_n", Pins("P1")),
+        Subsignal("cke", Pins("P33")),
+        Subsignal("ras_n", Pins("P2")),
+        Subsignal("cas_n", Pins("P5")),
+        Subsignal("we_n", Pins("P6")),
+        Subsignal("dq", Pins("P9 P10 P11 P12 P14 P15 P16 P8 P21 P22 P23 P24 P26 P27 P29 P30")),
+        Subsignal("dm", Pins("P7 P17")),
+        IOStandard("LVCMOS33"), Misc("SLEW=FAST")
+    )
+]
+
+_connectors = [
+    ("A", "P48 P51 P56 P58 P61 P66 P67 P75 P79 P81 P83 P85 P88 P93 P98 P100"),
+    ("B", "P99 P97 P92 P87 P84 P82 P80 P78 P74 P95 P62 P59 P57 P55 P50 P47"),
+    ("C", "P114 P115 P116 P117 P118 P119 P120 P121 P123 P124 P126 P127 P131 P132 P133 P134")
+]
+
+
+class Platform(XilinxPlatform):
+    default_clk_name = "clk32"
+    default_clk_period = 31.25
+
+    def __init__(self):
+        XilinxPlatform.__init__(self, "xc6slx9-tqg144-2", _io, _connectors)
+
+    def create_programmer(self):
+        return XC3SProg("papilio", "bscan_spi_lx9_papilio.bit")