litex-boards/litex_boards/targets/efinix_trion_t20_bga256_dev...

101 lines
3.9 KiB
Python
Executable File

#!/usr/bin/env python3
#
# This file is part of LiteX-Boards.
#
# Copyright (c) 2021 Miodrag Milanovic <mmicko@gmail.com>
# Copyright (c) 2021 Franck Jullien <franck.jullien@collshade.fr>
# Copyright (c) 2021 Florent Kermarrec <florent@enjoy-digital.fr>
# SPDX-License-Identifier: BSD-2-Clause
import argparse
from migen import *
from migen.genlib.resetsync import AsyncResetSynchronizer
from litex_boards.platforms import efinix_trion_t20_bga256_dev_kit
from litex.build.generic_platform import *
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
# CRG ----------------------------------------------------------------------------------------------
class _CRG(Module):
def __init__(self, platform, sys_clk_freq):
self.clock_domains.cd_sys = ClockDomain()
# # #
clk50 = platform.request("clk50")
rst_n = platform.request("user_btn", 0)
# PLL
self.submodules.pll = pll = TRIONPLL(platform)
self.comb += pll.reset.eq(~rst_n)
pll.register_clkin(clk50, 50e6)
pll.create_clkout(self.cd_sys, sys_clk_freq, with_reset=True)
# BaseSoC ------------------------------------------------------------------------------------------
class BaseSoC(SoCCore):
def __init__(self, sys_clk_freq=int(100e6), with_spi_flash=False, with_led_chaser=True, **kwargs):
platform = efinix_trion_t20_bga256_dev_kit.Platform()
# SoCCore ----------------------------------------------------------------------------------
SoCCore.__init__(self, platform, sys_clk_freq,
ident = "LiteX SoC on Efinix Trion T20 BGA256 Dev Kit",
ident_version = True,
**kwargs
)
# CRG --------------------------------------------------------------------------------------
self.submodules.crg = _CRG(platform, sys_clk_freq)
# SPI Flash --------------------------------------------------------------------------------
if with_spi_flash:
from litespi.modules import W25Q32JV
from litespi.opcodes import SpiNorFlashOpCodes as Codes
self.add_spi_flash(mode="1x", module=W25Q32JV(Codes.READ_1_1_1), with_master=True)
# Leds -------------------------------------------------------------------------------------
if with_led_chaser:
self.submodules.leds = LedChaser(
pads = platform.request_all("user_led"),
sys_clk_freq = sys_clk_freq)
# Build --------------------------------------------------------------------------------------------
def main():
parser = argparse.ArgumentParser(description="LiteX SoC on Efinix Trion T20 BGA256 Dev Kit")
parser.add_argument("--build", action="store_true", help="Build bitstream.")
parser.add_argument("--load", action="store_true", help="Load bitstream.")
parser.add_argument("--flash", action="store_true", help="Flash bitstream.")
parser.add_argument("--sys-clk-freq", default=100e6, help="System clock frequency.")
parser.add_argument("--with-spi-flash", action="store_true", help="Enable SPI Flash (MMAPed).")
builder_args(parser)
soc_core_args(parser)
args = parser.parse_args()
soc = BaseSoC(
sys_clk_freq = int(float(args.sys_clk_freq)),
with_spi_flash = args.with_spi_flash,
**soc_core_argdict(args))
builder = Builder(soc, **builder_argdict(args))
builder.build(run=args.build)
if args.load:
prog = soc.platform.create_programmer()
prog.load_bitstream(os.path.join(builder.gateware_dir, f"{soc.build_name}.bit"))
if args.flash:
from litex.build.openfpgaloader import OpenFPGALoader
prog = OpenFPGALoader("trion_t120_bga576")
prog.flash(0, os.path.join(builder.gateware_dir, f"{soc.build_name}.hex"))
if __name__ == "__main__":
main()