From f7822b7dc74ceb3ddd33a6df02433463793fdaad Mon Sep 17 00:00:00 2001 From: Goran Mahovlic Date: Mon, 13 Feb 2023 11:40:43 +0100 Subject: [PATCH] Adding target to files --- litex_boards/targets/ulx4m_ld_v2.py | 251 ++++++++++++++++++++++++++++ 1 file changed, 251 insertions(+) create mode 100644 litex_boards/targets/ulx4m_ld_v2.py diff --git a/litex_boards/targets/ulx4m_ld_v2.py b/litex_boards/targets/ulx4m_ld_v2.py new file mode 100644 index 0000000..5abf8ea --- /dev/null +++ b/litex_boards/targets/ulx4m_ld_v2.py @@ -0,0 +1,251 @@ +#!/usr/bin/env python3 + +# +# This file is part of LiteX-Boards. +# +# Copyright (c) 2021 Florent Kermarrec +# Copyright (c) 2021 Greg Davill +# Copyright (c) 2022 Goran Mahovlic +# SPDX-License-Identifier: BSD-2-Clause + +# Build/Use: +# ./gsd_ulx4m_ld.py --uart-name=uart --uart-baudrate=115200 --sdram-device MT41K64M16 --csr-csv=csr.csv --build + +import os +import sys +import argparse + +from migen import * +from migen.genlib.resetsync import AsyncResetSynchronizer + +from litex_boards.platforms import ulx4m_ld_v2 + +from litex.build.lattice.trellis import trellis_args, trellis_argdict + +from litex.soc.cores.clock import * +from litex.soc.integration.soc_core import * +from litex.soc.integration.builder import * +from litex.soc.cores.led import LedChaser +from litex.soc.cores.gpio import GPIOTristate +from litex.soc.cores.video import VideoHDMIPHY + +from litedram.common import PHYPadsReducer +from litedram.modules import MT41K64M16,MT41K128M16,MT41K256M16,MT41K512M16 +from litedram.phy import ECP5DDRPHY + +from liteeth.phy.ecp5rgmii import LiteEthPHYRGMII + +# CRG --------------------------------------------------------------------------------------------- + +class _CRG(Module): + def __init__(self, platform, sys_clk_freq, with_video_pll=True): + self.rst = Signal() + self.clock_domains.cd_init = ClockDomain() + self.clock_domains.cd_por = ClockDomain(reset_less=True) + self.clock_domains.cd_sys = ClockDomain() + self.clock_domains.cd_sys2x = ClockDomain() + self.clock_domains.cd_sys2x_i = ClockDomain(reset_less=True) + + # # # + + self.stop = Signal() + self.reset = Signal() + + # Clk / Rst + clk25 = platform.request("clk25") + rst_n = platform.request("rst_n", 0) + + # Power on reset + por_count = Signal(16, reset=2**16-1) + por_done = Signal() + self.comb += self.cd_por.clk.eq(clk25) + self.comb += por_done.eq(por_count == 0) + self.sync.por += If(~por_done, por_count.eq(por_count - 1)) + + # USB PLL +# if with_usb_pll: +# self.submodules.usb_pll = usb_pll = ECP5PLL() +# self.comb += usb_pll.reset.eq(rst | self.rst) +# usb_pll.register_clkin(clk25, 25e6) +# self.clock_domains.cd_usb_12 = ClockDomain() +# self.clock_domains.cd_usb_48 = ClockDomain() +# usb_pll.create_clkout(self.cd_usb_12, 12e6, margin=0) +# usb_pll.create_clkout(self.cd_usb_48, 48e6, margin=0) + + # Video PLL + if with_video_pll: + self.submodules.video_pll = video_pll = ECP5PLL() + self.comb += video_pll.reset.eq(rst_n | self.rst) + video_pll.register_clkin(clk25, 25e6) + self.clock_domains.cd_hdmi = ClockDomain() + self.clock_domains.cd_hdmi5x = ClockDomain() + video_pll.create_clkout(self.cd_hdmi, 25e6, margin=0) + video_pll.create_clkout(self.cd_hdmi5x, 125e6, margin=0) + + # PLL + self.submodules.pll = pll = ECP5PLL() + self.comb += pll.reset.eq(~por_done | rst_n | self.rst) + pll.register_clkin(clk25, 25e6) + pll.create_clkout(self.cd_sys2x_i, 2*sys_clk_freq) + pll.create_clkout(self.cd_init, 25e6) + self.specials += [ + Instance("ECLKSYNCB", + i_ECLKI = self.cd_sys2x_i.clk, + i_STOP = self.stop, + o_ECLKO = self.cd_sys2x.clk), + Instance("CLKDIVF", + p_DIV = "1.0", + 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), + AsyncResetSynchronizer(self.cd_sys2x, ~pll.locked | self.reset), + ] + +# BaseSoC ------------------------------------------------------------------------------------------ + +# revision = kwargs.get("revision", "0.1") +# device = kwargs.get("device", "UM-45F") + +class BaseSoC(SoCCore): + def __init__(self, revision="0.1", device="UM5G-85F", sdram_device="MT41K512M16", sys_clk_freq=int(100e6), + toolchain="trellis", with_ethernet=False, with_etherbone=False, + with_video_terminal=True, + with_video_framebuffer=False, + eth_ip="192.168.1.50", + eth_dynamic_ip = False, + with_spi_flash = False, + with_led_chaser = True, + with_syzygy_gpio = False, + **kwargs) : + platform = ulx4m_ld_v2.Platform(revision="0.1", device="UM5G-85F" ,toolchain="trellis") + + # SoCCore ---------------------------------------------------------------------------------- + if kwargs["uart_name"] in ["serial", "usb_acm"]: + kwargs["uart_name"] = "serial" + SoCCore.__init__(self, platform, sys_clk_freq, + ident = "LiteX SoC on ULX4M-LD-V2", + **kwargs) + + # CRG -------------------------------------------------------------------------------------- + with_video_pll = with_video_terminal or with_video_framebuffer + self.submodules.crg = _CRG(platform, sys_clk_freq, with_video_pll) + + # DDR3 SDRAM ------------------------------------------------------------------------------- + if not self.integrated_main_ram_size: + available_sdram_modules = { + "MT41K64M16": MT41K64M16, + "MT41K128M16": MT41K128M16, + "MT41K256M16": MT41K256M16, + "MT41K512M16": MT41K256M16, + } + sdram_module = available_sdram_modules.get(sdram_device) + + self.submodules.ddrphy = ECP5DDRPHY( + pads = PHYPadsReducer(platform.request("ddram"), [0, 1]), + sys_clk_freq=sys_clk_freq) + 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, "1:4"), + l2_cache_size = kwargs.get("l2_size", 8192) + ) + + # Ethernet / Etherbone --------------------------------------------------------------------- + if with_ethernet or with_etherbone: + self.submodules.ethphy = LiteEthPHYRGMII( + clock_pads = self.platform.request("eth_clocks"), + pads = self.platform.request("eth")) + if with_ethernet: + self.add_ethernet(phy=self.ethphy, dynamic_ip=eth_dynamic_ip) + if with_etherbone: + self.add_etherbone(phy=self.ethphy, ip_address=eth_ip) + + # SPI Flash -------------------------------------------------------------------------------- + if with_spi_flash: + from litespi.modules import IS25LP128 + from litespi.opcodes import SpiNorFlashOpCodes as Codes + self.add_spi_flash(mode="4x", module=IS25LP128(Codes.READ_1_1_4)) + + # Video ------------------------------------------------------------------------------------ + if with_video_terminal or with_video_framebuffer: + self.submodules.videophy = VideoHDMIPHY(platform.request("gpdi"), clock_domain="hdmi") + if with_video_terminal: + self.add_video_terminal(phy=self.videophy, timings="640x480@75Hz", clock_domain="hdmi") + if with_video_framebuffer: + self.add_video_framebuffer(phy=self.videophy, timings="640x480@75Hz", clock_domain="hdmi") + + # Leds ------------------------------------------------------------------------------------- + if with_led_chaser: + self.submodules.leds = LedChaser( + pads = platform.request_all("user_led"), + sys_clk_freq = sys_clk_freq) + + + # GPIOs ------------------------------------------------------------------------------------ + if with_syzygy_gpio: + platform.add_extension(ulx4m_ld_v2.raw_syzygy_io("SYZYGY0")) + self.submodules.gpio = GPIOTristate(platform.request("SYZYGY0")) + +# Build -------------------------------------------------------------------------------------------- + +def main(): + parser = argparse.ArgumentParser(description="LiteX SoC on ULX4M-LD-V2") + parser.add_argument("--build", action="store_true", help="Build bitstream.") + parser.add_argument("--load", action="store_true", help="Load bitstream.") + parser.add_argument("--toolchain", default="trellis", help="FPGA toolchain (trellis or diamond).") + parser.add_argument("--sys-clk-freq", default=100e6, help="System clock frequency.") + parser.add_argument("--revision", default="1.0", help="Board Revision (1.0).") + parser.add_argument("--device", default="UM5G-85F", help="ECP5 device (25F, 45F, 85F).") + parser.add_argument("--sdram-device", default="MT41K32M16", help="SDRAM device (MT41K64M16, MT41K128M16, MT41K256M16 or MT41K512M16).") + ethopts = parser.add_mutually_exclusive_group() + ethopts.add_argument("--with-ethernet", action="store_true", help="Add Ethernet.") + ethopts.add_argument("--with-etherbone", action="store_true", help="Add EtherBone.") + parser.add_argument("--eth-ip", default="192.168.1.50", help="Ethernet/Etherbone IP address.") + parser.add_argument("--eth-dynamic-ip", action="store_true", help="Enable dynamic Ethernet IP addresses setting.") + parser.add_argument("--with-spi-flash", action="store_true", help="Enable SPI Flash (MMAPed).") + sdopts = parser.add_mutually_exclusive_group() + sdopts.add_argument("--with-spi-sdcard", action="store_true", help="Enable SPI-mode SDCard support.") + sdopts.add_argument("--with-sdcard", action="store_true", help="Enable SDCard support.") + parser.add_argument("--with-syzygy-gpio",action="store_true", help="Enable GPIOs through SYZYGY Breakout on Port-A.") + viopts = parser.add_mutually_exclusive_group() + viopts.add_argument("--with-video-terminal", action="store_true", help="Enable Video Terminal (HDMI).") + viopts.add_argument("--with-video-framebuffer", action="store_true", help="Enable Video Framebuffer (HDMI).") + builder_args(parser) + soc_core_args(parser) + trellis_args(parser) + args = parser.parse_args() + + assert not (args.with_etherbone and args.eth_dynamic_ip) + + soc = BaseSoC( + toolchain = args.toolchain, + revision = args.revision, + device = args.device, + sdram_device = args.sdram_device, + sys_clk_freq = int(float(args.sys_clk_freq)), + with_ethernet = args.with_ethernet, + with_etherbone = args.with_etherbone, + eth_ip = args.eth_ip, + eth_dynamic_ip = args.eth_dynamic_ip, + with_spi_flash = args.with_spi_flash, + with_video_terminal = args.with_video_terminal, + with_video_framebuffer = args.with_video_framebuffer, + with_syzygy_gpio = args.with_syzygy_gpio, + **soc_core_argdict(args)) + if args.with_spi_sdcard: + soc.add_spi_sdcard() + if args.with_sdcard: + soc.add_sdcard() + builder = Builder(soc, **builder_argdict(args)) + builder_kargs = trellis_argdict(args) if args.toolchain == "trellis" else {} + builder.build(**builder_kargs, run=args.build) + + if args.load: + prog = soc.platform.create_programmer() + prog.load_bitstream(builder.get_bitstream_filename(mode="sram")) + +if __name__ == "__main__": + main()