litex-boards/litex_boards/targets/efinix_trion_t20_mipi_dev_k...

87 lines
3.3 KiB
Python
Executable File

#!/usr/bin/env python3
#
# This file is part of LiteX-Boards.
#
# Copyright (c) 2021 Florent Kermarrec <florent@enjoy-digital.fr>
# SPDX-License-Identifier: BSD-2-Clause
from migen import *
from migen.genlib.resetsync import AsyncResetSynchronizer
from litex.gen import LiteXModule
from litex_boards.platforms import efinix_trion_t20_mipi_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(LiteXModule):
def __init__(self, platform, sys_clk_freq):
self.cd_sys = ClockDomain()
# # #
clk50 = platform.request("clk50")
rst_n = platform.request("user_btn", 0)
# PLL
self.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_mipi_dev_kit.Platform()
# CRG --------------------------------------------------------------------------------------
self.crg = _CRG(platform, sys_clk_freq)
# SoCCore ----------------------------------------------------------------------------------
SoCCore.__init__(self, platform, sys_clk_freq, ident="LiteX SoC on Efinix Trion T20 MIPI Dev Kit", **kwargs)
# 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.leds = LedChaser(
pads = platform.request_all("user_led"),
sys_clk_freq = sys_clk_freq)
# Build --------------------------------------------------------------------------------------------
def main():
from litex.build.parser import LiteXArgumentParser
parser = LiteXArgumentParser(platform=efinix_trion_t20_mipi_dev_kit.Platform, description="LiteX SoC on Efinix Trion T20 MIPI Dev Kit")
parser.add_target_argument("--sys-clk-freq", default=100e6, help="System clock frequency.")
parser.add_target_argument("--with-spi-flash", action="store_true", help="Enable SPI Flash (MMAPed).")
args = parser.parse_args()
soc = BaseSoC(
sys_clk_freq = int(float(args.sys_clk_freq)),
with_spi_flash = args.with_spi_flash,
**parser.soc_core_argdict)
builder = Builder(soc, **parser.builder_argdict)
if args.build:
builder.build(**parser.toolchain_argdict)
if args.load:
prog = soc.platform.create_programmer()
prog.load_bitstream(builder.get_bitstream_filename(mode="sram"))
if __name__ == "__main__":
main()