add pipistrello platform

diff --git a/mibuild/platforms/pipistrello.py b/mibuild/platforms/pipistrello.py
new file mode 100644 (file)
index 0000000..cd3d67f
--- /dev/null
+++ b/mibuild/platforms/pipistrello.py
@@ -0,0 +1,128 @@
+from mibuild.generic_platform import *
+from mibuild.crg import SimpleCRG
+from mibuild.xilinx.ise import XilinxISEPlatform
+from mibuild.xilinx.programmer import XC3SProg
+
+_io = [
+       ("user_led", 0, Pins("V16"), IOStandard("LVTTL"), Drive(8), Misc("SLEW=QUIETIO")), # green near hdmi
+       ("user_led", 1, Pins("U16"), IOStandard("LVTTL"), Drive(8), Misc("SLEW=QUIETIO")), # red near hdmi
+       ("user_led", 2, Pins("A16"), IOStandard("LVTTL"), Drive(8), Misc("SLEW=QUIETIO")), # green at msd
+       ("user_led", 3, Pins("A15"), IOStandard("LVTTL"), Drive(8), Misc("SLEW=QUIETIO")), # red at msd
+       ("user_led", 4, Pins("A12"), IOStandard("LVTTL"), Drive(8), Misc("SLEW=QUIETIO")), # red at usb
+
+       ("user_switch", 0, Pins("N14"), IOStandard("LVTTL"), Misc("PULLDOWN")),
+
+       ("clk50", 0, Pins("H17"), IOStandard("LVTTL")),
+
+       ("serial", 0,
+               Subsignal("tx", Pins("A10"), Misc("SLEW=SLOW")),
+               Subsignal("rx", Pins("A11"), Misc("PULLUP")),
+               Subsignal("rts", Pins("C10"), Misc("SLEW=SLOW")),
+               Subsignal("cts", Pins("A9"), Misc("PULLUP")),
+               IOStandard("LVTTL"),
+       ),
+
+       ("usb_fifo", 0,
+               Subsignal("data", Pins("A11 A10 C10 A9 B9 A8 B8 A7")),
+               Subsignal("rxf", Pins("C7")),
+               Subsignal("txe", Pins("A6")),
+               Subsignal("rd", Pins("B6")),
+               Subsignal("wr", Pins("A5")),
+               Subsignal("siwua", Pins("C5")),
+               IOStandard("LVTTL"),
+       ),
+
+       ("dvi_in", 0,
+               Subsignal("clk_p", Pins("U5"), IOStandard("TMDS_33")),
+               Subsignal("clk_n", Pins("V5"), IOStandard("TMDS_33")),
+               Subsignal("data0_p", Pins("T6"), IOStandard("TMDS_33")),
+               Subsignal("data0_n", Pins("V6"), IOStandard("TMDS_33")),
+               Subsignal("data1_p", Pins("U7"), IOStandard("TMDS_33")),
+               Subsignal("data1_n", Pins("V7"), IOStandard("TMDS_33")),
+               Subsignal("data2_p", Pins("U8"), IOStandard("TMDS_33")),
+               Subsignal("data2_n", Pins("V8"), IOStandard("TMDS_33")),
+               Subsignal("scl", Pins("V9"), IOStandard("LVCMOS33")),
+               Subsignal("sda", Pins("T9"), IOStandard("LVCMOS33")),
+               Subsignal("hpd_notif", Pins("R8"), IOStandard("LVCMOS33")),
+       ),
+
+       ("spiflash", 0,
+               Subsignal("cs_n", Pins("V3")),
+               Subsignal("clk", Pins("R15")),
+               Subsignal("mosi", Pins("T13")),
+               Subsignal("miso", Pins("R13"), Misc("PULLUP")),
+               Subsignal("wp", Pins("T14")),
+               Subsignal("hold", Pins("V14")),
+               IOStandard("LVTTL"), Misc("SLEW=FAST")
+       ),
+
+       ("spiflash2x", 0,
+               Subsignal("cs_n", Pins("V3")),
+               Subsignal("clk", Pins("R15")),
+               Subsignal("dq", Pins("T13", "R13"), Misc("PULLUP")),
+               Subsignal("wp", Pins("T14")),
+               Subsignal("hold", Pins("V14")),
+               IOStandard("LVCMOS33"), Misc("SLEW=FAST")
+       ),
+
+       ("mmc", 0,
+               Subsignal("clk", Pins("A3")),
+               Subsignal("cmd", Pins("B3")),
+               Subsignal("dat", Pins("B4 A4 B2 A2")),
+               IOStandard("SDIO")
+       ),
+
+       ("audio", 0,
+               Subsignal("l", Pins("R7")),
+               Subsignal("r", Pins("T7")),
+               IOStandard("LVTTL"),
+       ),
+
+       ("pmod", 0,
+               Subsignal("d", Pins("D9 C8 D6 C4 B11 C9 D8 C6")),
+               IOStandard("LVCMOS33")
+       ),
+
+       ("sdram_clock", 0,
+               Subsignal("p", Pins("G3")),
+               Subsignal("n", Pins("G1")),
+               IOStandard("MOBILE_DDR"), Misc("SLEW=FAST"),
+       ),
+
+       ("sdram", 0,
+               Subsignal("a", Pins("J7 J6 H5 L7 F3 H4 H3 H6 D2 D1 F4 D3 G6")),
+               Subsignal("ba", Pins("F2 F1")),
+               # Subsignal("cs_n", Pins("")),
+               Subsignal("cke", Pins("H7")),
+               Subsignal("ras_n", Pins("L5")),
+               Subsignal("cas_n", Pins("K5")),
+               Subsignal("we_n", Pins("E3")),
+               Subsignal("dq", Pins("L2 L1 K2 K1 H2 H1 J3 J1 M3 M1 N2 N1 T2 T1 U2 U1")),
+               Subsignal("dm", Pins("K3 K4")),
+               IOStandard("MOBILE_DDR"), Misc("SLEW=FAST")
+       )
+]
+
+_connectors = [
+       ("A", "U18 T17 P17 P16 N16 N17 M16 L15 L17 K15 K17 J16 H15 H18 F18 D18"),
+       ("B", "C18 E18 G18 H16 J18 K18 K16 L18 L16 M18 N18 N15 P15 P18 T18 U17"),
+       ("C", "F17 F16 E16 G16 F15 G14 F14 H14 H13 J13 G13 H12 K14 K13 K12 L12"),
+]
+
+class Platform(XilinxISEPlatform):
+       identifier = 0x5049
+       default_clk_name = "clk50"
+       default_clk_period = 20
+
+       def __init__(self):
+               XilinxISEPlatform.__init__(self, "xc6slx45-csg324-2", _io,
+                       lambda p: SimpleCRG(p, "clk50", None), _connectors)
+
+       def create_programmer(self):
+               return XC3SProg("ftdi", "bscan_spi_lx45_csg324.bit")
+
+       def do_finalize(self, fragment):
+               try:
+                       self.add_period_constraint(self.lookup_request("clk50"), 20.)
+               except ConstraintError:
+                       pass