orangecrab: Add r0.2 support

litex_boards/platforms/orangecrab_r0_2.py

@@ -0,0 +1,107 @@
+# This file is Copyright (c) Greg Davill <greg.davill@gmail.com>
+# License: BSD
+
+from litex.build.generic_platform import *
+from litex.build.lattice import LatticePlatform
+
+# IOs ----------------------------------------------------------------------------------------------
+
+_io = [
+    ("clk48", 0, Pins("A9"), IOStandard("LVCMOS33")),
+    ("rst_n", 0, Pins("V17"), IOStandard("LVCMOS33")),
+
+    ("usr_btn", 0, Pins("J17"),IOStandard("SSTL135_I")),
+
+    ("rgb_led", 0,
+        Subsignal("r", Pins("K4"), IOStandard("LVCMOS33")),
+        Subsignal("g", Pins("M3"), IOStandard("LVCMOS33")),
+        Subsignal("b", Pins("J3"), IOStandard("LVCMOS33")),    
+    ),
+
+    ("ddram", 0,
+        Subsignal("a", Pins(
+            "C4 D2 D3 A3 A4 D4 C3 B2",
+            "B1 D1 A7 C2 B6 C1 A2 C7"),
+            IOStandard("SSTL135_I"),Misc("SLEWRATE=FAST")),
+        Subsignal("ba", Pins("D6 B7 A6"), IOStandard("SSTL135_I"),Misc("SLEWRATE=FAST")),
+        Subsignal("ras_n", Pins("C12"), IOStandard("SSTL135_I"),Misc("SLEWRATE=FAST")),
+        Subsignal("cas_n", Pins("D13"), IOStandard("SSTL135_I"),Misc("SLEWRATE=FAST")),
+        Subsignal("we_n", Pins("B12"), IOStandard("SSTL135_I"),Misc("SLEWRATE=FAST")),
+        Subsignal("cs_n", Pins("A12"), IOStandard("SSTL135_I"),Misc("SLEWRATE=FAST")),
+        Subsignal("dm", Pins("D16 G16"), IOStandard("SSTL135_I"),Misc("SLEWRATE=FAST")),
+        Subsignal("dq", Pins(
+            "C17 D15 B17 C16 A15 B13 A17 A13",
+            "F17 F16 G15 F15 J16 C18 H16 F18"),
+            IOStandard("SSTL135_I"),
+            Misc("TERMINATION=75 SLEWRATE=FAST")),
+        Subsignal("dqs_p", Pins("B15 G18"), IOStandard("SSTL135D_I"), Misc("TERMINATION=OFF DIFFRESISTOR=100 SLEWRATE=FAST")),
+        Subsignal("clk_p", Pins("J18"), IOStandard("SSTL135D_I"),Misc("SLEWRATE=FAST")),
+        Subsignal("cke", Pins("D18"), IOStandard("SSTL135_I"),Misc("SLEWRATE=FAST")),
+        Subsignal("odt", Pins("C13"), IOStandard("SSTL135_I"),Misc("SLEWRATE=FAST")),
+        Subsignal("reset_n", Pins("L18"), IOStandard("SSTL135_I"),Misc("SLEWRATE=FAST")),
+        Subsignal("vccio", Pins("K16 D17 K15 K17 B18 C6"), IOStandard("SSTL135_II")),
+        Subsignal("gnd", Pins("L15 L16"), IOStandard("SSTL135_II")),
+    ),
+
+    ("usb", 0,
+        Subsignal("d_p", Pins("N1")),
+        Subsignal("d_n", Pins("M2")),
+        Subsignal("pullup", Pins("N2")),
+        IOStandard("LVCMOS33")
+    ),
+
+    ("spiflash4x", 0,
+        Subsignal("cs_n", Pins("U17"), IOStandard("LVCMOS33")),
+        #Subsignal("clk",  Pins("U16"), IOStandard("LVCMOS33")),
+        Subsignal("dq",   Pins("U18 T18 R18 N18"), IOStandard("LVCMOS33")),
+    ),
+    ("spiflash", 0,
+        Subsignal("cs_n", Pins("U17"), IOStandard("LVCMOS33")),
+        #Subsignal("clk",  Pins("U16"), IOStandard("LVCMOS33")), # Note: CLK is bound using USRMCLK block
+        Subsignal("miso", Pins("T18"), IOStandard("LVCMOS33")),
+        Subsignal("mosi", Pins("U18"), IOStandard("LVCMOS33")),
+        Subsignal("wp",   Pins("R18"), IOStandard("LVCMOS33")),
+        Subsignal("hold", Pins("N18"), IOStandard("LVCMOS33")),
+    ),
+]
+
+# Connectors ---------------------------------------------------------------------------------------
+
+_connectors = [
+    # Feather 0.1" Header Pin Numbers, 
+    # Note: Pin nubering is not continuous.
+    ("GPIO", "N17 M18 C10 C9 - B10 B9 - - C8 B8 A8 H2 J2 N15 R17 N16 - L4 N3 N4 H4 G4 T17"),
+]
+
+# Standard Feather Pins
+feather_serial = [
+    ("serial", 0,
+        Subsignal("tx", Pins("GPIO:1"), IOStandard("LVCMOS33")),
+        Subsignal("rx", Pins("GPIO:0"), IOStandard("LVCMOS33"))
+    )
+]
+
+feather_i2c = [
+    ("i2c", 0,
+        ("sda", Pins("GPIO:2"), IOStandard("LVCMOS33")),
+        ("scl", Pins("GPIO:3"), IOStandard("LVCMOS33"))
+    )
+]
+
+feather_spi = [
+    ("spi",0,
+        ("miso", Pins("GPIO:14"), IOStandard("LVCMOS33")),
+        ("mosi", Pins("GPIO:16"), IOStandard("LVCMOS33")),
+        ("sck", Pins("GPIO:15"), IOStandard("LVCMOS33"))
+    )
+]
+
+
+# Platform -----------------------------------------------------------------------------------------
+
+class Platform(LatticePlatform):
+    default_clk_name = "clk48"
+    default_clk_period = 1e9/48e6
+
+    def __init__(self, device='25F', **kwargs):
+        LatticePlatform.__init__(self, f"LFE5U-{device}-8MG285C", _io, _connectors, **kwargs)

litex_boards/targets/orangecrab.py

@@ -8,7 +8,7 @@ import argparse
 from migen import *
 from migen.genlib.resetsync import AsyncResetSynchronizer
 
-from litex_boards.platforms import orangecrab
+from litex_boards.platforms import orangecrab_r0_1, orangecrab_r0_2
 
 from litex.build.lattice.trellis import trellis_args, trellis_argdict
 
@@ -76,6 +76,13 @@ class _CRG(Module):
 
 class BaseSoC(SoCCore):
     def __init__(self, sys_clk_freq=int(48e6), toolchain="trellis", **kwargs):
+        # Board Revision ---------------------------------------------------------------------------
+        revision = kwargs.get("revision", "r0.2")
+        boards = {
+            'r0.1': orangecrab_r0_1,
+            'r0.2': orangecrab_r0_2
+        }
+        orangecrab = boards.get(revision)
         platform = orangecrab.Platform(toolchain=toolchain)
         
         # Serial -----------------------------------------------------------------------------------
@@ -126,6 +133,8 @@ def main():
     trellis_args(parser)
     parser.add_argument("--sys-clk-freq", default=48e6,
                         help="system clock frequency (default=48MHz)")
+    parser.add_argument("--revision", default="r0.2",
+                        help="Board Revision {r0.1, r0.2} (default=r0.2)")
     parser.add_argument("--device", default="25F",
                         help="ECP5 device (default=25F)")
     parser.add_argument("--sdram-device", default="MT41K64M16",