161 lines
7.2 KiB
Python
Executable File
161 lines
7.2 KiB
Python
Executable File
#!/usr/bin/env python3
|
|
#
|
|
# This file is part of LiteX-Boards.
|
|
#
|
|
# Copyright (c) 2021 Antmicro <www.antmicro.com>
|
|
# SPDX-License-Identifier: BSD-2-Clause
|
|
|
|
from migen import *
|
|
|
|
from litex.gen import *
|
|
|
|
from litex_boards.platforms import antmicro_lpddr4_test_board
|
|
|
|
from litex.soc.cores.clock import *
|
|
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 MT53E256M16D1
|
|
from litedram.phy import lpddr4
|
|
|
|
from liteeth.phy import LiteEthS7PHYRGMII
|
|
from litex.soc.cores.hyperbus import HyperRAM
|
|
|
|
# CRG ----------------------------------------------------------------------------------------------
|
|
|
|
class _CRG(LiteXModule):
|
|
def __init__(self, platform, sys_clk_freq, iodelay_clk_freq):
|
|
self.rst = Signal()
|
|
self.cd_sys = ClockDomain()
|
|
self.cd_sys2x = ClockDomain()
|
|
self.cd_sys8x = ClockDomain()
|
|
self.cd_idelay = ClockDomain()
|
|
|
|
# # #
|
|
|
|
self.pll = pll = S7PLL(speedgrade=-1)
|
|
self.comb += pll.reset.eq(self.rst)
|
|
pll.register_clkin(platform.request("clk100"), 100e6)
|
|
pll.create_clkout(self.cd_sys, sys_clk_freq)
|
|
pll.create_clkout(self.cd_sys2x, 2 * sys_clk_freq)
|
|
pll.create_clkout(self.cd_sys8x, 8 * sys_clk_freq)
|
|
pll.create_clkout(self.cd_idelay, iodelay_clk_freq)
|
|
|
|
self.idelayctrl = S7IDELAYCTRL(self.cd_idelay)
|
|
|
|
# BaseSoC ------------------------------------------------------------------------------------------
|
|
|
|
class BaseSoC(SoCCore):
|
|
def __init__(self, *, sys_clk_freq=50e6, iodelay_clk_freq=200e6,
|
|
with_ethernet = False,
|
|
with_etherbone = False,
|
|
eth_ip = "192.168.1.50",
|
|
eth_dynamic_ip = False,
|
|
with_hyperram = False,
|
|
with_sdcard = False,
|
|
with_uartbone = False,
|
|
with_led_chaser = True,
|
|
**kwargs):
|
|
platform = antmicro_lpddr4_test_board.Platform()
|
|
|
|
# CRG --------------------------------------------------------------------------------------
|
|
self.crg = _CRG(platform, sys_clk_freq, iodelay_clk_freq=iodelay_clk_freq)
|
|
|
|
# SoCCore ----------------------------------------------------------------------------------
|
|
SoCCore.__init__(self, platform, sys_clk_freq, ident="LiteX SoC on LPDDR4 Test Board", **kwargs)
|
|
|
|
# LDDR4 SDRAM ------------------------------------------------------------------------------
|
|
if not self.integrated_main_ram_size:
|
|
self.ddrphy = lpddr4.K7LPDDR4PHY(platform.request("lpddr4"),
|
|
iodelay_clk_freq = iodelay_clk_freq,
|
|
sys_clk_freq = sys_clk_freq,
|
|
)
|
|
self.add_sdram("sdram",
|
|
phy = self.ddrphy,
|
|
module = MT53E256M16D1(sys_clk_freq, "1:8"),
|
|
l2_cache_size = kwargs.get("l2_size", 8192),
|
|
l2_cache_min_data_width = 256,
|
|
)
|
|
|
|
# HyperRAM ---------------------------------------------------------------------------------
|
|
if with_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*1024*1024))
|
|
|
|
# SD Card ----------------------------------------------------------------------------------
|
|
if with_sdcard:
|
|
self.add_sdcard()
|
|
|
|
# Ethernet / Etherbone ---------------------------------------------------------------------
|
|
if with_ethernet or with_etherbone:
|
|
# Traces between PHY and FPGA introduce ignorable delays of ~0.165ns +/- 0.015ns.
|
|
# PHY chip does not introduce delays on TX (FPGA->PHY), however it includes 1.2ns
|
|
# delay for RX CLK so we only need 0.8ns to match the desired 2ns.
|
|
self.ethphy = LiteEthS7PHYRGMII(
|
|
clock_pads = self.platform.request("eth_clocks"),
|
|
pads = self.platform.request("eth"),
|
|
rx_delay = 0.8e-9,
|
|
)
|
|
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)
|
|
|
|
# UartBone ---------------------------------------------------------------------------------
|
|
if with_uartbone:
|
|
self.add_uartbone(baudrate=1e6)
|
|
|
|
# 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=antmicro_lpddr4_test_board.Platform, description="LiteX SoC on LPDDR4 Test Board.")
|
|
parser.add_target_argument("--flash", action="store_true", help="Flash bitstream.")
|
|
parser.add_target_argument("--sys-clk-freq", default=50e6, type=float, help="System clock frequency.")
|
|
parser.add_target_argument("--iodelay-clk-freq", default=200e6, type=float, help="IODELAYCTRL frequency.")
|
|
ethopts = parser.target_group.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_target_argument("--eth-ip", default="192.168.1.50", help="Ethernet/Etherbone IP address.")
|
|
parser.add_target_argument("--eth-dynamic-ip", action="store_true", help="Enable dynamic Ethernet IP addresses setting.")
|
|
parser.add_target_argument("--with-hyperram", action="store_true", help="Add HyperRAM.")
|
|
parser.add_target_argument("--with-sdcard", action="store_true", help="Add SDCard.")
|
|
parser.add_target_argument("--with-uartbone", action="store_true", help="Add UartBone on 2nd serial.")
|
|
args = parser.parse_args()
|
|
|
|
assert not (args.with_etherbone and args.eth_dynamic_ip)
|
|
|
|
soc = BaseSoC(
|
|
sys_clk_freq = args.sys_clk_freq,
|
|
iodelay_clk_freq = args.iodelay_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_hyperram = args.with_hyperram,
|
|
with_sdcard = args.with_sdcard,
|
|
with_uartbone = args.with_uartbone,
|
|
**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 args.flash:
|
|
prog = soc.platform.create_programmer()
|
|
prog.flash(0, builder.get_bitstream_filename(mode="flash"))
|
|
|
|
if __name__ == "__main__":
|
|
main()
|