litex/boards: add machxo3 starter kit platform

diff --git a/litex/boards/platforms/machxo3.py b/litex/boards/platforms/machxo3.py
new file mode 100644 (file)
index 0000000..a2a2233
--- /dev/null
+++ b/litex/boards/platforms/machxo3.py
@@ -0,0 +1,92 @@
+# This file is Copyright (c) 2016 Florent Kermarrec <florent@enjoy-digital.fr>
+# License: BSD
+
+from litex.build.generic_platform import *
+from litex.build.lattice import LatticePlatform
+from litex.build.lattice.programmer import LatticeProgrammer
+
+
+_io = [
+    ("clk12", 0, Pins("C8"), IOStandard("LVCMOS33")),
+    ("rst_n", 0, Pins("B3"), IOStandard("LVCMOS33")),
+
+    ("user_led", 0, Pins("H11"), IOStandard("LVCMOS33")),
+    ("user_led", 1, Pins("J13"), IOStandard("LVCMOS33")),
+    ("user_led", 2, Pins("J11"), IOStandard("LVCMOS33")),
+    ("user_led", 3, Pins("L12"), IOStandard("LVCMOS33")),
+    ("user_led", 4, Pins("K11"), IOStandard("LVCMOS33")),
+    ("user_led", 5, Pins("L13"), IOStandard("LVCMOS33")),
+    ("user_led", 6, Pins("N15"), IOStandard("LVCMOS33")),
+    ("user_led", 7, Pins("P16"), IOStandard("LVCMOS33")),
+
+    ("user_dip_btn", 0, Pins("N2"), IOStandard("LVCMOS33")),
+    ("user_dip_btn", 1, Pins("P1"), IOStandard("LVCMOS33")),
+    ("user_dip_btn", 2, Pins("M3"), IOStandard("LVCMOS33")),
+    ("user_dip_btn", 3, Pins("N1"), IOStandard("LVCMOS33")),
+
+    ("serial", 0,
+        Subsignal("tx", Pins("C11"), IOStandard("LVCMOS33")),
+        Subsignal("rx", Pins("A11"), IOStandard("LVCMOS33")),
+    ),
+]
+
+
+class Platform(LatticePlatform):
+    default_clk_name = "clk12"
+    default_clk_period = 83
+
+    def __init__(self):
+        LatticePlatform.__init__(self, "LCMXO3L-6900C-5BG256C", _io)
+
+    def create_programmer(self):
+        _xcf_template = """
+<?xml version='1.0' encoding='utf-8' ?>
+<!DOCTYPE       ispXCF  SYSTEM  "IspXCF.dtd" >
+<ispXCF version="3.6.0">
+    <Comment></Comment>
+    <Chain>
+        <Comm>JTAG</Comm>
+        <Device>
+            <SelectedProg value="TRUE"/>
+            <Pos>1</Pos>
+            <Vendor>Lattice</Vendor>
+            <Family>MachXO3L</Family>
+            <Name>LCMXO3L-6900C</Name>
+            <IDCode>0x412bd043</IDCode>
+            <Package>All</Package>
+            <PON>LCMXO3L-6900C</PON>
+            <Bypass>
+                <InstrLen>8</InstrLen>
+                <InstrVal>11111111</InstrVal>
+                <BScanLen>1</BScanLen>
+                <BScanVal>0</BScanVal>
+            </Bypass>
+            <File>{bitstream_file}</File>
+            <JedecChecksum>N/A</JedecChecksum>
+            <Operation>SRAM Fast Configuration</Operation>
+            <Option>
+                <SVFVendor>JTAG STANDARD</SVFVendor>
+                <IOState>HighZ</IOState>
+                <PreloadLength>664</PreloadLength>
+                <IOVectorData>0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF</IOVectorData>
+                <Usercode>0x00000000</Usercode>
+                <AccessMode>SRAM</AccessMode>
+            </Option>
+        </Device>
+    </Chain>
+    <ProjectOptions>
+        <Program>SEQUENTIAL</Program>
+        <Process>ENTIRED CHAIN</Process>
+        <OperationOverride>No Override</OperationOverride>
+        <StartTAP>TLR</StartTAP>
+        <EndTAP>TLR</EndTAP>
+        <VerifyUsercode value="FALSE"/>
+    </ProjectOptions>
+    <CableOptions>
+        <CableName>USB2</CableName>
+        <PortAdd>FTUSB-0</PortAdd>
+        <USBID>Lattice XO3L Starter Kit A Location 0000 Serial A</USBID>
+    </CableOptions>
+</ispXCF>
+"""
+        return LatticeProgrammer(_xcf_template)