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import os
import subprocess
from amaranth.build import *
from amaranth.vendor.lattice_ecp5 import *
from .resources import *
__all__ = ["LogicbonePlatform", "Logicbone85FPlatform"]
class LogicbonePlatform(LatticeECP5Platform):
name = "Logicbone"
device = "LFE5UM5G-45F"
package = "BG381"
speed = "8"
default_clk = "refclk"
resources = [
Resource("refclk", 0, Pins("M19", dir="i"),
Clock(25e6), Attrs(IO_TYPE="LVCMOS18")),
# SerDes connections.
Resource("serdes", 0,
Subsignal("rx", DiffPairs("Y5", "Y6")),
Subsignal("tx", DiffPairs("W4", "W5")),
),
Resource("serdes", 1,
Subsignal("rx", DiffPairs("Y8", "Y7")),
Subsignal("tx", DiffPairs("W8", "W9")),
),
# VBUS Detection is on the USB-C PD controller for both ports.
DirectUSBResource("usb", 0,
d_p="B12", d_n="C12", pullup="C16",
attrs=Attrs(IO_TYPE="LVCMOS33")
),
DirectUSBResource("usb", 1,
d_p="R1", d_n="T1", pullup="T2",
attrs=Attrs(IO_TYPE="LVCMOS33")
),
*LEDResources(pins="D16 C15 C13 B13", attrs=Attrs(IO_TYPE="LVCMOS33"), invert=True),
*ButtonResources(pins="U2", attrs=Attrs(IO_TYPE="LVCMOS33"), invert=True),
*SPIFlashResources(0,
cs_n="R2", clk="U3", cipo="V2", copi="W2", wp_n="Y2", hold_n="W1",
attrs=Attrs(IO_TYPE="LVCMOS33")
),
*SDCardResources(0,
clk="E11", cmd="D15", cd="D14",
dat0="D13", dat1="E13", dat2="E15", dat3="E13",
attrs=Attrs(IO_TYPE="LVCMOS33")
),
Resource("eth_clk125", 0, Pins("A19", dir="i"),
Clock(125e6), Attrs(IO_TYPE="LVCMOS33")),
Resource("eth_rgmii", 0,
# Stolen for sys_reset usage on prototypes.
# Subsignal("rst", PinsN("U17", dir="o")),
Subsignal("int", Pins("B20", dir="i")),
Subsignal("mdc", Pins("D12", dir="o")),
Subsignal("mdio", Pins("B19", dir="io")),
Subsignal("tx_clk", Pins("A15", dir="o")),
Subsignal("tx_ctl", Pins("B15", dir="o")),
Subsignal("tx_data", Pins("A12 A13 C14 A14", dir="o")),
Subsignal("rx_clk", Pins("B18", dir="i")),
Subsignal("rx_ctl", Pins("A18", dir="i")),
Subsignal("rx_data", Pins("B17 A17 B16 A16", dir="i")),
Attrs(IO_TYPE="LVCMOS33")
),
Resource("ddr3", 0,
Subsignal("rst", PinsN("P1", dir="o")),
Subsignal("clk", DiffPairs("M4", "N5", dir="o"), Attrs(IO_TYPE="LVDS")),
Subsignal("clk_en", Pins("K4", dir="o")),
Subsignal("cs", PinsN("M3", dir="o")),
Subsignal("we", PinsN("E4", dir="o")),
Subsignal("ras", PinsN("L1", dir="o")),
Subsignal("cas", PinsN("M1", dir="o")),
Subsignal("a", Pins("D5 F4 B3 F3 E5 C3 C4 A5 A3 B5 G3 F5 D2 A4 D3 E3", dir="o")),
Subsignal("ba", Pins("B4 H5 N2", dir="o")),
Subsignal("dqs", DiffPairs("K2 H4", "J1 G5", dir="io"), Attrs(IO_TYPE="LVDS")),
Subsignal("dq", Pins("G2 K1 F1 K3 H2 J3 G1 H1 B1 E1 A2 F2 C1 E2 C2 D1", dir="io")),
Subsignal("dm", Pins("L4 J5", dir="o")),
Subsignal("odt", Pins("C5", dir="o")),
Attrs(IO_TYPE="SSTL135_I")
)
]
connectors = [
Connector("P8", 0, """
- - C20 D19 D20 E19 E20 F19 F20 G20 - - - - - -
- - - - - - G19 H20 J20 K20 C18 D17 D18 E17 E18 F18
F17 G18 E16 F16 G16 H16 J17 J16 H18 H17 J19 K19 J18 K18
"""),
Connector("P9", 0, """
- - - - - - - - - - - A11 B11 A10 C10 A9
B9 C11 A8 - - D9 C8 B8 A7 A6 B6 D8 C7 D7 C6 D6
- - - - - - - - - B10 E10 - - -
"""),
]
def toolchain_prepare(self, fragment, name, **kwargs):
overrides = dict(ecppack_opts="--compress --spimode qspi --freq 38.8")
overrides.update(kwargs)
return super().toolchain_prepare(fragment, name, **overrides)
def toolchain_program(self, products, name):
dfu_util = os.environ.get("DFU_UTIL", "dfu-util")
with products.extract("{}.bit".format(name)) as bitstream_filename:
subprocess.check_call([
dfu_util, "-d", "1d50:615d", "-a", "0", "-R",
"-D", bitstream_filename
])
class Logicbone85FPlatform(LogicbonePlatform):
name = "Logicbone (85F Variant)"
device = "LFE5UM5G-85F"
if __name__ == "__main__":
import argparse
from .test.blinky import Blinky
parser = argparse.ArgumentParser()
parser.add_argument("--variant", choices=("85", "45"), default="45",
help="platform variant (default: %(default)s)")
args = parser.parse_args()
if args.variant == "45":
platform = LogicbonePlatform()
if args.variant == "85":
platform = Logicbone85FPlatform()
platform.build(Blinky(), do_program=True)
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