129 lines
4.9 KiB
Python
Executable File
129 lines
4.9 KiB
Python
Executable File
#!/usr/bin/env python3
|
|
|
|
#
|
|
# This file is part of LiteX-Boards.
|
|
#
|
|
# Copyright (c) 2019 Antti Lukats <antti.lukats@gmail.com>
|
|
# Copyright (c) 2019 msloniewski <marcin.sloniewski@gmail.com>
|
|
# Copyright (c) 2019 Florent Kermarrec <florent@enjoy-digital.fr>
|
|
# SPDX-License-Identifier: BSD-2-Clause
|
|
|
|
from migen import *
|
|
|
|
from litex.gen import *
|
|
|
|
from litex_boards.platforms import trenz_c10lprefkit
|
|
|
|
from litex.soc.cores.clock import Cyclone10LPPLL
|
|
from litex.soc.integration.soc_core import *
|
|
from litex.soc.integration.soc import SoCRegion
|
|
from litex.soc.integration.builder import *
|
|
from litex.soc.cores.led import LedChaser
|
|
|
|
from litedram.modules import MT48LC16M16
|
|
from litedram.phy import GENSDRPHY
|
|
|
|
from liteeth.phy.mii import LiteEthPHYMII
|
|
|
|
from litex.soc.cores.hyperbus import HyperRAM
|
|
|
|
# CRG ----------------------------------------------------------------------------------------------
|
|
|
|
class _CRG(LiteXModule):
|
|
def __init__(self, platform, sys_clk_freq):
|
|
self.rst = Signal()
|
|
self.cd_sys = ClockDomain()
|
|
self.cd_sys_ps = ClockDomain()
|
|
|
|
# # #
|
|
|
|
# Clk / Rst
|
|
clk12 = platform.request("clk12")
|
|
|
|
# PLL
|
|
self.pll = pll = Cyclone10LPPLL(speedgrade="-A7")
|
|
self.comb += pll.reset.eq(~platform.request("cpu_reset") | self.rst)
|
|
pll.register_clkin(clk12, 12e6)
|
|
pll.create_clkout(self.cd_sys, sys_clk_freq)
|
|
pll.create_clkout(self.cd_sys_ps, sys_clk_freq, phase=90)
|
|
|
|
# SDRAM clock
|
|
self.comb += platform.request("sdram_clock").eq(self.cd_sys_ps.clk)
|
|
|
|
# BaseSoC ------------------------------------------------------------------------------------------
|
|
|
|
class BaseSoC(SoCCore):
|
|
mem_map = {
|
|
"hyperram": 0x20000000,
|
|
}
|
|
mem_map.update(SoCCore.mem_map)
|
|
|
|
def __init__(self, sys_clk_freq=50e6,
|
|
with_led_chaser = True,
|
|
with_ethernet = False,
|
|
with_etherbone = False,
|
|
**kwargs):
|
|
platform = trenz_c10lprefkit.Platform()
|
|
|
|
# CRG --------------------------------------------------------------------------------------
|
|
self.crg = _CRG(platform, sys_clk_freq)
|
|
|
|
# SoCCore ----------------------------------------------------------------------------------
|
|
SoCCore.__init__(self, platform, sys_clk_freq, ident="LiteX SoC on C10 LP RefKit", **kwargs)
|
|
|
|
# HyperRam ---------------------------------------------------------------------------------
|
|
self.hyperram = HyperRAM(platform.request("hyperram"), sys_clk_freq=sys_clk_freq)
|
|
self.bus.add_slave("hyperram", slave=self.hyperram.bus, region=SoCRegion(origin=0x20000000, size=8 * MEGABYTE, mode="rwx"))
|
|
|
|
# SDR SDRAM --------------------------------------------------------------------------------
|
|
if not self.integrated_main_ram_size:
|
|
self.sdrphy = GENSDRPHY(platform.request("sdram"), sys_clk_freq)
|
|
self.add_sdram("sdram",
|
|
phy = self.sdrphy,
|
|
module = MT48LC16M16(sys_clk_freq, "1:1"),
|
|
l2_cache_size = kwargs.get("l2_size", 8192)
|
|
)
|
|
|
|
# Ethernet / Etherbone ---------------------------------------------------------------------
|
|
if with_ethernet or with_etherbone:
|
|
self.ethphy = LiteEthPHYMII(
|
|
clock_pads = self.platform.request("eth_clocks"),
|
|
pads = self.platform.request("eth"))
|
|
if with_ethernet:
|
|
self.add_ethernet(phy=self.ethphy)
|
|
if with_etherbone:
|
|
self.add_etherbone(phy=self.ethphy)
|
|
|
|
# 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=trenz_c10lprefkit.Platform, description="LiteX SoC on C10 LP RefKit.")
|
|
parser.add_target_argument("--sys-clk-freq", default=50e6, type=float, help="System clock frequency.")
|
|
parser.add_target_argument("--with-ethernet", action="store_true", help="Enable Ethernet support.")
|
|
parser.add_target_argument("--with-etherbone", action="store_true", help="Enable Etherbone support.")
|
|
args = parser.parse_args()
|
|
|
|
soc = BaseSoC(
|
|
sys_clk_freq = args.sys_clk_freq,
|
|
with_ethernet = args.with_ethernet,
|
|
with_etherbone = args.with_etherbone,
|
|
**parser.soc_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()
|