litex-boards/litex_boards/targets/quicklogic_quickfeather.py

114 lines
4.4 KiB
Python
Executable File

#!/usr/bin/env python3
#
# This file is part of LiteX-Boards.
#
# Copyright (c) 2021 Florent Kermarrec <florent@enjoy-digital.fr>
# Copyright (c) 2021 Gwenhael Goavec-Merou <gwenhael.goavec-merou@trabucayre.com>
# SPDX-License-Identifier: BSD-2-Clause
import os
from migen import *
from litex_boards.platforms import quicklogic_quickfeather
from litex.soc.integration.soc import SoCRegion
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 *
# CRG ----------------------------------------------------------------------------------------------
class _CRG(Module):
def __init__(self, platform, with_eos_s3=False):
self.rst = Signal()
self.clock_domains.cd_sys = ClockDomain()
# # #
if with_eos_s3:
# Use clocks generated by the EOS-S3 CPU.
self.comb += ClockSignal("sys").eq(ClockSignal("eos_s3_0"))
self.comb += ResetSignal("sys").eq(ResetSignal("eos_s3_0") | self.rst)
else:
# Use clocks generated by the qlal4s3b_cell_macro.
class Open(Signal): pass
self.specials += Instance("qlal4s3b_cell_macro",
o_Sys_Clk0 = self.cd_sys.clk,
o_Sys_Clk0_Rst = self.cd_sys.rst,
o_Sys_Clk1 = Open(),
o_Sys_Clk1_Rst = Open(),
)
# BaseSoC ------------------------------------------------------------------------------------------
class BaseSoC(SoCCore):
def __init__(self, sys_clk_freq=int(10e6), with_led_chaser=True, with_gpio_in=True, **kwargs):
platform = quicklogic_quickfeather.Platform()
# SoCCore ----------------------------------------------------------------------------------
kwargs["with_uart"] = False
if kwargs.get("cpu_type", None) == "eos_s3":
kwargs['integrated_sram_size'] = 0
SoCCore.__init__(self, platform, sys_clk_freq,
ident = "LiteX SoC on QuickLogic QuickFeather",
**kwargs)
if kwargs.get("cpu_type", None) == "eos_s3":
# in fact SRAM starts at 0x2000_0000 - but for some reason
# this does not work and most QORC SDK linker scripts
# use 0x2002_7000 + 0x0003_c800
self.bus.add_region("sram", SoCRegion(
origin=0x2002_7000,
size=0x0003_c800)
)
self.bus.add_region("rom", SoCRegion(
origin=self.mem_map["rom"],
size=4 * 128 * 1024,
linker=True)
)
# CRG --------------------------------------------------------------------------------------
self.submodules.crg = _CRG(platform, with_eos_s3=kwargs["cpu_type"] == "eos_s3")
# Leds -------------------------------------------------------------------------------------
if with_led_chaser:
self.submodules.leds = LedChaser(
pads = platform.request_all("user_led"),
sys_clk_freq = sys_clk_freq)
# GPIOIn (Interrupt test) ------------------------------------------------------------------
if with_gpio_in:
self.submodules.gpio = GPIOIn(platform.request_all("user_btn_n"), with_irq=True)
if kwargs["cpu_type"] == "eos_s3":
self.irq.add("gpio", use_loc_if_exists=True)
# Build --------------------------------------------------------------------------------------------
def main():
from litex.soc.integration.soc import LiteXSoCArgumentParser
parser = LiteXSoCArgumentParser(description="LiteX SoC on QuickLogic QuickFeather")
target_group = parser.add_argument_group(title="Target options")
target_group.add_argument("--build", action="store_true", help="Build bitstream.")
soc_core_args(parser)
parser.set_defaults(cpu_type="eos_s3")
args = parser.parse_args()
soc = BaseSoC(**soc_core_argdict(args))
builder = Builder(soc)
if args.cpu_type == "eos_s3":
libeos_path = os.path.join(os.path.dirname(os.path.abspath(__file__)), "libeos")
if not os.path.exists(libeos_path):
os.system("wget -nc https://github.com/litex-hub/litex-boards/files/7880350/libeos.zip")
os.system(f"unzip libeos.zip -d {libeos_path}")
builder.add_software_package("libeos", src_dir=libeos_path)
builder.add_software_library("libeos")
builder.build(run=args.build)
if __name__ == "__main__":
main()