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Merge pull request #464 from machdyne/master 

initial support for machdyne konfekt and noir
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enjoy-digital 2023-01-01 16:12:51 +01:00 committed by GitHub
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2
README.md
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@ -167,6 +167,8 @@ Some of the suported boards, see yours? Give LiteX-Boards a try!
├── logicbone
├── machdyne_krote
├── machdyne_schoko
├── machdyne_konfekt
├── machdyne_noir
├── marblemini
├── marble
├── micronova_mercury2

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litex_boards/platforms/machdyne_konfekt.py Normal file
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#
# This file is part of LiteX-Boards.
#
# Copright (c) 2022 Lone Dynamics Corporation <info@lonedynamics.com>
#
# SPDX-License-Identifier: BSD-2-Clause
from litex.build.generic_platform import *
from litex.build.lattice import LatticePlatform
from litex.build.openfpgaloader import OpenFPGALoader
# IOs ----------------------------------------------------------------------------------------------
_io_vx = [
# Clock
("clk48", 0, Pins("A7"), IOStandard("LVCMOS33")),
# Leds
("user_led", 0, Pins("G1"), IOStandard("LVCMOS33")),
("user_led", 1, Pins("E1"), IOStandard("LVCMOS33")),
("user_led", 2, Pins("C1"), IOStandard("LVCMOS33")),
("rgb_led", 0,
Subsignal("r", Pins("G1"), IOStandard("LVCMOS33")),
Subsignal("g", Pins("E1"), IOStandard("LVCMOS33")),
Subsignal("b", Pins("C1"), IOStandard("LVCMOS33")),
),
# Buttons
("usr_btn", 0, Pins("K1"), IOStandard("LVCMOS33")),
# SDRAM
("sdram_clock", 0, Pins("F16"), IOStandard("LVTTL33")),
("sdram", 0,
Subsignal("a", Pins(
"M13 M14 L14 L13 G12 G13 G14 G15",
"F12 F13 T15 F14 E14")),
Subsignal("ba", Pins("P14 N13")),
Subsignal("cs_n", Pins("G16")),
Subsignal("cke", Pins("F15")),
Subsignal("ras_n", Pins("J16")),
Subsignal("cas_n", Pins("K16")),
Subsignal("we_n", Pins("L15")),
Subsignal("dq", Pins(
"R15 R16 P16 P15 N16 N14 M16 M15",
"E15 D16 D14 C16 B16 C14 C15 B15")),
Subsignal("dm", Pins("L16 E16")),
IOStandard("LVTTL33")
),
# Differential Data Multiple Interface
("ddmi", 0,
Subsignal("clk_p", Pins("M1"),
IOStandard("LVCMOS33D"), Misc("DRIVE=4")),
Subsignal("data0_p", Pins("P1"),
IOStandard("LVCMOS33D"), Misc("DRIVE=4")),
Subsignal("data1_p", Pins("R2"),
IOStandard("LVCMOS33D"), Misc("DRIVE=4")),
Subsignal("data2_p", Pins("R5"),
IOStandard("LVCMOS33D"), Misc("DRIVE=4")),
),
# USB-C
("usb", 0,
Subsignal("d_p", Pins("T6")),
Subsignal("d_n", Pins("R6")),
Subsignal("pullup", Pins("R7")),
IOStandard("LVCMOS33")
),
# USB HOST
("usb_host", 0,
Subsignal("dp", Pins("B1")),
Subsignal("dm", Pins("B2")),
IOStandard("LVCMOS33")
),
# 3.5MM AUDIO
("audio_pwm", 0,
Subsignal("left", Pins("M11")),
Subsignal("right", Pins("P12")),
IOStandard("LVCMOS33")
),
# 3.5MM VIDEO
("video_dac", 0,
Subsignal("data", Pins("T13 R12 T14 R13")),
IOStandard("LVCMOS33")
),
# DEBUG UART
("serial", 0,
Subsignal("tx", Pins("J2")),
Subsignal("rx", Pins("J1")),
IOStandard("LVCMOS33")
),
]
_io_v0 = [
# SD card w/ SD-mode interface
("sdcard", 0,
# Subsignal("cd", Pins("A5")),
Subsignal("clk", Pins("B4")),
Subsignal("cmd", Pins("A3")),
Subsignal("data", Pins("A4 B5 A2 B3")),
Misc("SLEWRATE=FAST"),
IOStandard("LVCMOS33")
),
# SD card w/ SPI interface
("spisdcard", 0,
Subsignal("clk", Pins("B4")),
Subsignal("mosi", Pins("A3")),
Subsignal("cs_n", Pins("B3")),
Subsignal("miso", Pins("A4")),
Misc("SLEWRATE=FAST"),
IOStandard("LVCMOS33"),
),
]
# Connectors ---------------------------------------------------------------------------------------
_connectors_vx = [
]
# Platform -----------------------------------------------------------------------------------------
class Platform(LatticePlatform):
default_clk_name = "clk48"
default_clk_period = 1e9/48e6
def __init__(self, revision="v0", device="12F", toolchain="trellis", **kwargs):
assert revision in ["v0"]
assert device in ["12F", "25F", "45F", "85F"]
self.revision = revision
io = _io_vx
connectors = _connectors_vx
if revision == "v0": io += _io_v0
LatticePlatform.__init__(self, f"LFE5U-{device}-6BG256", io, connectors, toolchain=toolchain, **kwargs)
def create_programmer(self, cable):
return OpenFPGALoader(cable=cable)
def do_finalize(self, fragment):
LatticePlatform.do_finalize(self, fragment)
self.add_period_constraint(self.lookup_request("clk48", loose=True), 1e9/48e6)

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litex_boards/platforms/machdyne_noir.py Normal file
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#
# This file is part of LiteX-Boards.
#
# Copright (c) 2022 Lone Dynamics Corporation <info@lonedynamics.com>
#
# SPDX-License-Identifier: BSD-2-Clause
from litex.build.generic_platform import *
from litex.build.lattice import LatticePlatform
from litex.build.openfpgaloader import OpenFPGALoader
# IOs ----------------------------------------------------------------------------------------------
_io_vx = [
# Clock
("clk48", 0, Pins("A7"), IOStandard("LVCMOS33")),
# Leds
("user_led", 0, Pins("C1"), IOStandard("LVCMOS33")),
("user_led", 1, Pins("E1"), IOStandard("LVCMOS33")),
("user_led", 2, Pins("G1"), IOStandard("LVCMOS33")),
("rgb_led", 0,
Subsignal("r", Pins("C1"), IOStandard("LVCMOS33")),
Subsignal("g", Pins("E1"), IOStandard("LVCMOS33")),
Subsignal("b", Pins("G1"), IOStandard("LVCMOS33")),
),
# DDR3L
("ddram", 0,
Subsignal("a", Pins(
"R15 L13 P14 R14 L12 T14 N11 T13",
"P12 T15 C14 M13 E14 R13 M14 D14"),
IOStandard("SSTL135_I")),
Subsignal("ba", Pins("N16 K13 P16"), IOStandard("SSTL135_I")),
Subsignal("ras_n", Pins("L16"), IOStandard("SSTL135_I")),
Subsignal("cas_n", Pins("M16"), IOStandard("SSTL135_I")),
Subsignal("we_n", Pins("P15"), IOStandard("SSTL135_I")),
Subsignal("cs_n", Pins("M15"), IOStandard("SSTL135_I")),
Subsignal("dm", Pins("F13 J13"), IOStandard("SSTL135_I")),
Subsignal("dq", Pins(
"F14 E16 F12 F15 G13 B16 G12 B15",
"J14 J16 K15 K14 H14 K16 H13 J15"),
IOStandard("SSTL135_I"),
Misc("TERMINATION=75")),
Subsignal("dqs_p", Pins("D16 G16"), IOStandard("SSTL135D_I"),
Misc("TERMINATION=OFF DIFFRESISTOR=100")),
Subsignal("clk_p", Pins("C16"), IOStandard("SSTL135D_I")),
Subsignal("cke", Pins("K12"), IOStandard("SSTL135_I")),
Subsignal("odt", Pins("L15"), IOStandard("SSTL135_I")),
Subsignal("reset_n", Pins("R12"), IOStandard("SSTL135_I")),
Misc("SLEWRATE=FAST")
),
# Differential Data Multiple Interface
("ddmi", 0,
Subsignal("clk_p", Pins("M1"),
IOStandard("LVCMOS33D"), Misc("DRIVE=4")),
Subsignal("data0_p", Pins("P1"),
IOStandard("LVCMOS33D"), Misc("DRIVE=4")),
Subsignal("data1_p", Pins("R2"),
IOStandard("LVCMOS33D"), Misc("DRIVE=4")),
Subsignal("data2_p", Pins("R5"),
IOStandard("LVCMOS33D"), Misc("DRIVE=4")),
),
# USB-C
("usb", 0,
Subsignal("d_p", Pins("T6")),
Subsignal("d_n", Pins("R6")),
Subsignal("pullup", Pins("R7")),
IOStandard("LVCMOS33")
),
# USB HOST
("usb_host", 0,
Subsignal("dp", Pins("B1")),
Subsignal("dm", Pins("B2")),
IOStandard("LVCMOS33")
),
# 3.5MM AUDIO
("audio_pwm", 0,
Subsignal("left", Pins("N7")),
Subsignal("right", Pins("M7")),
IOStandard("LVCMOS33")
),
# DEBUG UART
("serial", 0,
Subsignal("tx", Pins("J2")),
Subsignal("rx", Pins("J1")),
IOStandard("LVCMOS33")
),
# SPI
("spiflash", 0,
Subsignal("cs_n", Pins("N8")),
Subsignal("miso", Pins("T7")),
Subsignal("mosi", Pins("T8")),
Misc("SLEWRATE=FAST"),
IOStandard("LVCMOS33"),
),
]
_io_v0 = [
# SD card w/ SD-mode interface
("sdcard", 0,
Subsignal("cd", Pins("A5")),
Subsignal("clk", Pins("B4")),
Subsignal("cmd", Pins("A3")),
Subsignal("data", Pins("A4 B5 A2 B3")),
Misc("SLEWRATE=FAST"),
IOStandard("LVCMOS33")
),
# SD card w/ SPI interface
("spisdcard", 0,
Subsignal("clk", Pins("B4")),
Subsignal("mosi", Pins("A3")),
Subsignal("cs_n", Pins("B3")),
Subsignal("miso", Pins("A4")),
Misc("SLEWRATE=FAST"),
IOStandard("LVCMOS33"),
),
]
# Connectors ---------------------------------------------------------------------------------------
_connectors_vx = [
]
# Platform -----------------------------------------------------------------------------------------
class Platform(LatticePlatform):
default_clk_name = "clk48"
default_clk_period = 1e9/48e6
def __init__(self, revision="v0", device="45F", toolchain="trellis", **kwargs):
assert revision in ["v0"]
assert device in ["12F", "25F", "45F", "85F"]
self.revision = revision
io = _io_vx
connectors = _connectors_vx
if revision == "v0": io += _io_v0
LatticePlatform.__init__(self, f"LFE5U-{device}-6BG256", io, connectors, toolchain=toolchain, **kwargs)
def create_programmer(self, cable):
return OpenFPGALoader(cable=cable)
def do_finalize(self, fragment):
LatticePlatform.do_finalize(self, fragment)
self.add_period_constraint(self.lookup_request("clk48", loose=True), 1e9/48e6)

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litex_boards/targets/machdyne_konfekt.py Executable file
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#!/usr/bin/env python3
#
# This file is part of LiteX-Boards.
#
# Copyright (c) Lone Dynamics Corporation <info@lonedynamics.com>
#
# SPDX-License-Identifier: BSD-2-Clause
#
import os
import sys
import json
from migen import *
from litex_boards.platforms import machdyne_konfekt
from litex.build.lattice.trellis import trellis_args, trellis_argdict
from litex.build.io import DDROutput
from litex.soc.cores.clock import *
from litex.soc.cores.led import LedChaser
from litex.soc.cores.usb_ohci import USBOHCI
from litex.soc.cores.video import VideoVGAPHY
from litex.soc.cores.video import VideoHDMIPHY
from litex.soc.integration.soc_core import *
from litex.soc.integration.builder import *
from litedram.modules import W9825G6KH6
from litedram.modules import IS42S16320
from litedram.phy import GENSDRPHY, HalfRateGENSDRPHY
from litedram.phy import QuarterRateGENSDRPHY
from litex.soc.integration.soc import SoCRegion
# CRG ---------------------------------------------------------------------------------------------
class _CRG(Module):
def __init__(self, platform, sys_clk_freq, sdram_rate):
self.rst = Signal()
self.clock_domains.cd_por = ClockDomain()
self.clock_domains.cd_sys = ClockDomain()
self.clock_domains.cd_video = ClockDomain()
self.clock_domains.cd_video5x = ClockDomain()
# Clk / Rst
clk48 = platform.request("clk48")
# Power on reset
por_count = Signal(16, reset=2**16-1)
por_done = Signal()
self.comb += self.cd_por.clk.eq(clk48)
self.comb += por_done.eq(por_count == 0)
self.sync.por += If(~por_done, por_count.eq(por_count - 1))
# PLL
self.submodules.pll = pll = ECP5PLL()
self.comb += pll.reset.eq(~por_done | self.rst)
pll.register_clkin(clk48, 48e6)
pll.create_clkout(self.cd_sys, sys_clk_freq)
if sdram_rate == "1:2":
self.clock_domains.cd_sys2x = ClockDomain()
self.clock_domains.cd_sys2x_ps = ClockDomain()
pll.create_clkout(self.cd_sys2x, 2*sys_clk_freq)
pll.create_clkout(self.cd_sys2x_ps, 2*sys_clk_freq, phase=180)
elif sdram_rate == "1:4":
self.clock_domains.cd_sys2x = ClockDomain()
self.clock_domains.cd_sys4x = ClockDomain()
self.clock_domains.cd_sys4x_ps = ClockDomain()
pll.create_clkout(self.cd_sys2x, 2*sys_clk_freq)
pll.create_clkout(self.cd_sys4x, 4*sys_clk_freq)
pll.create_clkout(self.cd_sys4x_ps, 4*sys_clk_freq, phase=180)
else:
self.clock_domains.cd_sys_ps = ClockDomain()
pll.create_clkout(self.cd_sys_ps, sys_clk_freq, phase=90)
if sdram_rate == "1:2":
sdram_clk = ClockSignal("sys2x_ps")
elif sdram_rate == "1:4":
sdram_clk = ClockSignal("sys4x_ps")
else:
sdram_clk = ClockSignal("sys_ps")
self.specials += DDROutput(1, 0, platform.request("sdram_clock"), sdram_clk)
pll2 = ECP5PLL()
self.submodules.pll2 = pll2
pll2.register_clkin(clk48, 48e6)
pll2.create_clkout(self.cd_video, 25e6)
pll2.create_clkout(self.cd_video5x, 125e6)
self.clock_domains.cd_usb_12 = ClockDomain()
self.clock_domains.cd_usb = ClockDomain()
self.clock_domains.cd_usb_48 = ClockDomain()
self.cd_usb_48 = self.cd_usb
pll2.create_clkout(self.cd_usb, 48e6)
pll2.create_clkout(self.cd_usb_12, 12e6)
self.comb += pll2.reset.eq(~por_done)
# BaseSoC ------------------------------------------------------------------------------------------
class BaseSoC(SoCCore):
mem_map = {**SoCCore.mem_map, **{
"usb_ohci": 0xc0000000,
}}
def __init__(self, revision="v0", device="12F", sdram_device="W9825G6KH6", sdram_rate="1:2", sys_clk_freq=int(40e6), toolchain="trellis", with_led_chaser=True, with_usb_host=False, **kwargs):
platform = machdyne_konfekt.Platform(revision=revision, device=device ,toolchain=toolchain)
# CRG --------------------------------------------------------------------------------------
self.submodules.crg = _CRG(platform, sys_clk_freq, sdram_rate=sdram_rate)
# SoCCore ----------------------------------------------------------------------------------
SoCCore.__init__(self, platform, sys_clk_freq, ident="LiteX SoC on Konfekt", **kwargs)
# DRAM -------------------------------------------------------------------------------------
if not self.integrated_main_ram_size:
if sdram_rate == "1:2":
sdrphy_cls = HalfRateGENSDRPHY
elif sdram_rate == "1:4":
sdrphy_cls = QuarterRateGENSDRPHY
else:
sdrphy_cls = GENSDRPHY
self.submodules.sdrphy = sdrphy_cls(platform.request("sdram"), sys_clk_freq)
if sdram_device == "W9825G6KH6":
self.add_sdram("sdram",
phy = self.sdrphy,
module = W9825G6KH6(sys_clk_freq, sdram_rate),
l2_cache_size = kwargs.get("l2_size", 0)
)
if sdram_device == "IS42S16320":
self.add_sdram("sdram",
phy = self.sdrphy,
module = IS42S16320(self.clk_freq, sdram_rate),
l2_cache_size = kwargs.get("l2_size", 0)
)
# USB Host ---------------------------------------------------------------------------------
if with_usb_host:
self.submodules.usb_ohci = USBOHCI(platform, platform.request("usb_host"), usb_clk_freq=int(48e6))
self.bus.add_slave("usb_ohci_ctrl", self.usb_ohci.wb_ctrl, region=SoCRegion(origin=self.mem_map["usb_ohci"], size=0x100000, cached=False))
self.dma_bus.add_master("usb_ohci_dma", master=self.usb_ohci.wb_dma)
self.comb += self.cpu.interrupt[16].eq(self.usb_ohci.interrupt)
# DDMI Framebuffer -------------------------------------------------------------------------------------
self.submodules.videophy = VideoHDMIPHY(platform.request("ddmi"),
clock_domain="video")
self.add_video_framebuffer(phy=self.videophy, timings="640x480@60Hz",
clock_domain="video", format="rgb565")
# Leds -------------------------------------------------------------------------------------
if with_led_chaser:
self.submodules.leds = LedChaser(
pads = platform.request_all("user_led"),
sys_clk_freq = sys_clk_freq)
# Build --------------------------------------------------------------------------------------------
def main():
from litex.soc.integration.soc import LiteXSoCArgumentParser
parser = LiteXSoCArgumentParser(description="LiteX SoC on Konfekt")
target_group = parser.add_argument_group(title="Target options")
target_group.add_argument("--build", action="store_true", help="Build design.")
target_group.add_argument("--load", action="store_true", help="Load bitstream to SRAM.")
target_group.add_argument("--flash", action="store_true", help="Flash bitstream to MMOD.")
target_group.add_argument("--toolchain", default="trellis", help="FPGA toolchain (trellis or diamond).")
target_group.add_argument("--sys-clk-freq", default=40e6, help="System clock frequency.")
target_group.add_argument("--revision", default="v0", help="Board Revision (v0).")
target_group.add_argument("--device", default="12F", help="ECP5 device (25F, 45F or 85F).")
target_group.add_argument("--cable", default="usb-blaster", help="Specify an openFPGALoader cable.")
target_group.add_argument("--with-sdcard", action="store_true", help="Enable SDCard support.")
target_group.add_argument("--with-spi-sdcard", action="store_true", help="Enable SPI-mode SDCard support.")
target_group.add_argument("--with-usb-host", action="store_true", help="Enable USB host support.")
target_group.add_argument("--boot-from-flash", action="store_true", help="Boot from flash MMOD.")
target_group.add_argument("--sdram-device", default="W9825G6KH6", help="SDRAM device (W9825G6KH6 or IS42S16320).")
builder_args(parser)
soc_core_args(parser)
trellis_args(parser)
args = parser.parse_args()
print("")
print("")
print("")
print(args)
print("")
print("")
print("")
soc = BaseSoC(
toolchain = args.toolchain,
revision = args.revision,
device = args.device,
sys_clk_freq = int(float(args.sys_clk_freq)),
sdram_device = args.sdram_device,
with_usb_host = args.with_usb_host,
**soc_core_argdict(args))
if args.with_sdcard:
soc.add_sdcard()
if args.with_spi_sdcard:
soc.add_spi_sdcard()
builder = Builder(soc, **builder_argdict(args))
builder_kargs = trellis_argdict(args) if args.toolchain == "trellis" else {}
if args.build:
builder.build(**builder_kargs)
if args.load:
prog = soc.platform.create_programmer(args.cable)
prog.load_bitstream(builder.get_bitstream_filename(mode="sram"))
if args.flash:
prog = soc.platform.create_programmer(args.cable)
prog.flash(0x100000, builder.get_bitstream_filename(mode="sram"))
if __name__ == "__main__":
main()

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litex_boards/targets/machdyne_noir.py Executable file
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#!/usr/bin/env python3
#
# This file is part of LiteX-Boards.
#
# Copyright (c) Greg Davill <greg.davill@gmail.com>
# Copyright (c) Lone Dynamics Corporation <info@lonedynamics.com>
#
# SPDX-License-Identifier: BSD-2-Clause
#
import os
import sys
import json
from migen import *
from litex_boards.platforms import machdyne_noir
from litex.build.lattice.trellis import trellis_args, trellis_argdict
from litex.build.io import DDROutput
from migen.genlib.resetsync import AsyncResetSynchronizer
from litex.soc.cores.clock import *
from litex.soc.cores.led import LedChaser
from litex.soc.cores.usb_ohci import USBOHCI
from litex.soc.cores.video import VideoVGAPHY
from litex.soc.cores.video import VideoHDMIPHY
from litex.soc.integration.soc_core import *
from litex.soc.integration.builder import *
from litedram.modules import MT41K64M16, MT41K128M16, MT41K256M16, MT41K512M16
from litedram.phy import ECP5DDRPHY
from litedram.phy import GENSDRPHY, HalfRateGENSDRPHY
from litedram.phy import QuarterRateGENSDRPHY
from litex.soc.integration.soc import SoCRegion
# CRG ---------------------------------------------------------------------------------------------
class _CRG(Module):
def __init__(self, platform, sys_clk_freq, sdram_rate):
self.rst = Signal()
self.clock_domains.cd_por = ClockDomain()
self.clock_domains.cd_sys = ClockDomain()
self.clock_domains.cd_sys2x = ClockDomain()
self.clock_domains.cd_sys2x_i = ClockDomain()
self.clock_domains.cd_init = ClockDomain()
self.clock_domains.cd_video = ClockDomain()
self.clock_domains.cd_video5x = ClockDomain()
self.stop = Signal()
self.reset = Signal()
# Clk / Rst
clk48 = platform.request("clk48")
# Power on reset
por_count = Signal(16, reset=2**16-1)
por_done = Signal()
self.comb += self.cd_por.clk.eq(clk48)
self.comb += por_done.eq(por_count == 0)
self.sync.por += If(~por_done, por_count.eq(por_count - 1))
# PLL
sys2x_clk_ecsout = Signal()
self.submodules.pll = pll = ECP5PLL()
self.comb += pll.reset.eq(~por_done | self.rst)
pll.register_clkin(clk48, 48e6)
pll.create_clkout(self.cd_sys2x_i, 2*sys_clk_freq)
pll.create_clkout(self.cd_init, 24e6)
self.specials += [
Instance("ECLKBRIDGECS",
i_CLK0 = self.cd_sys2x_i.clk,
i_SEL = 0,
o_ECSOUT = sys2x_clk_ecsout),
Instance("ECLKSYNCB",
i_ECLKI = sys2x_clk_ecsout,
i_STOP = self.stop,
o_ECLKO = self.cd_sys2x.clk),
Instance("CLKDIVF",
p_DIV = "2.0",
i_ALIGNWD = 0,
i_CLKI = self.cd_sys2x.clk,
i_RST = self.reset,
o_CDIVX = self.cd_sys.clk),
AsyncResetSynchronizer(self.cd_sys, ~pll.locked | self.reset),
]
pll2 = ECP5PLL()
self.submodules.pll2 = pll2
pll2.register_clkin(clk48, 48e6)
pll2.create_clkout(self.cd_video, 25e6)
pll2.create_clkout(self.cd_video5x, 125e6)
self.clock_domains.cd_usb_12 = ClockDomain()
self.clock_domains.cd_usb = ClockDomain()
self.clock_domains.cd_usb_48 = ClockDomain()
self.cd_usb_48 = self.cd_usb
pll2.create_clkout(self.cd_usb, 48e6)
pll2.create_clkout(self.cd_usb_12, 12e6)
self.comb += pll2.reset.eq(~por_done)
# BaseSoC ------------------------------------------------------------------------------------------
class BaseSoC(SoCCore):
mem_map = {**SoCCore.mem_map, **{
"usb_ohci": 0xc0000000,
}}
def __init__(self, revision="v0", device="45F", sdram_device="MT41K128M16", sdram_rate="1:2", sys_clk_freq=int(40e6), toolchain="trellis", with_led_chaser=True, with_usb_host=False, with_ethernet=False, **kwargs):
platform = machdyne_noir.Platform(revision=revision, device=device ,toolchain=toolchain)
# CRG --------------------------------------------------------------------------------------
self.submodules.crg = _CRG(platform, sys_clk_freq, sdram_rate=sdram_rate)
# SoCCore ----------------------------------------------------------------------------------
SoCCore.__init__(self, platform, sys_clk_freq, ident="LiteX SoC on Schoko", **kwargs)
# DDR3L ----------------------------------------------------------------------------------
if not self.integrated_main_ram_size:
available_sdram_modules = {
"MT41K64M16": MT41K64M16,
"MT41K128M16": MT41K128M16,
"MT41K256M16": MT41K256M16,
"MT41K512M16": MT41K512M16,
}
sdram_module = available_sdram_modules.get(sdram_device)
ddram_pads = platform.request("ddram")
self.submodules.ddrphy = ECP5DDRPHY(
pads = ddram_pads,
sys_clk_freq = sys_clk_freq,
cmd_delay = 0 if sys_clk_freq > 64e6 else 100)
self.ddrphy.settings.rtt_nom = "disabled"
self.comb += self.crg.stop.eq(self.ddrphy.init.stop)
self.comb += self.crg.reset.eq(self.ddrphy.init.reset)
self.add_sdram("sdram",
phy = self.ddrphy,
module = sdram_module(sys_clk_freq, "1:2"),
l2_cache_size = kwargs.get("l2_size", 8192)
)
# USB Host ---------------------------------------------------------------------------------
if with_usb_host:
self.submodules.usb_ohci = USBOHCI(platform, platform.request("usb_host"), usb_clk_freq=int(48e6))
self.bus.add_slave("usb_ohci_ctrl", self.usb_ohci.wb_ctrl, region=SoCRegion(origin=self.mem_map["usb_ohci"], size=0x100000, cached=False))
self.dma_bus.add_master("usb_ohci_dma", master=self.usb_ohci.wb_dma)
self.comb += self.cpu.interrupt[16].eq(self.usb_ohci.interrupt)
# DDMI Framebuffer -------------------------------------------------------------------------------------
self.submodules.videophy = VideoHDMIPHY(platform.request("ddmi"),
clock_domain="video")
self.add_video_framebuffer(phy=self.videophy, timings="640x480@60Hz",
clock_domain="video", format="rgb565")
# Leds -------------------------------------------------------------------------------------
if with_led_chaser:
self.submodules.leds = LedChaser(
pads = platform.request_all("user_led"),
sys_clk_freq = sys_clk_freq)
# Build --------------------------------------------------------------------------------------------
def main():
from litex.soc.integration.soc import LiteXSoCArgumentParser
parser = LiteXSoCArgumentParser(description="LiteX SoC on Schoko")
target_group = parser.add_argument_group(title="Target options")
target_group.add_argument("--build", action="store_true", help="Build design.")
target_group.add_argument("--load", action="store_true", help="Load bitstream to SRAM.")
target_group.add_argument("--flash", action="store_true", help="Flash bitstream to MMOD.")
target_group.add_argument("--toolchain", default="trellis", help="FPGA toolchain (trellis or diamond).")
target_group.add_argument("--sys-clk-freq", default=40e6, help="System clock frequency.")
target_group.add_argument("--revision", default="v0", help="Board Revision (v0).")
target_group.add_argument("--device", default="45F", help="ECP5 device (25F, 45F or 85F).")
target_group.add_argument("--cable", default="usb-blaster", help="Specify an openFPGALoader cable.")
target_group.add_argument("--with-sdcard", action="store_true", help="Enable SDCard support.")
target_group.add_argument("--with-spi-sdcard", action="store_true", help="Enable SPI-mode SDCard support.")
target_group.add_argument("--with-usb-host", action="store_true", help="Enable USB host support.")
target_group.add_argument("--with-ethernet", action="store_true", help="Enable ethernet support.")
target_group.add_argument("--boot-from-flash", action="store_true", help="Boot from flash MMOD.")
target_group.add_argument("--sdram-device", default="MT41K128M16", help="SDRAM device.")
builder_args(parser)
soc_core_args(parser)
trellis_args(parser)
args = parser.parse_args()
print("")
print("")
print("")
print(args)
print("")
print("")
print("")
soc = BaseSoC(
toolchain = args.toolchain,
revision = args.revision,
device = args.device,
sys_clk_freq = int(float(args.sys_clk_freq)),
sdram_device = args.sdram_device,
with_usb_host = args.with_usb_host,
with_ethernet = args.with_ethernet,
**soc_core_argdict(args))
if args.with_sdcard:
soc.add_sdcard()
if args.with_spi_sdcard:
soc.add_spi_sdcard()
builder = Builder(soc, **builder_argdict(args))
builder_kargs = trellis_argdict(args) if args.toolchain == "trellis" else {}
if args.build:
builder.build(**builder_kargs)
if args.load:
prog = soc.platform.create_programmer(args.cable)
prog.load_bitstream(builder.get_bitstream_filename(mode="sram"))
if args.flash:
prog = soc.platform.create_programmer(args.cable)
prog.flash(0x100000, builder.get_bitstream_filename(mode="sram"))
if __name__ == "__main__":
main()