def __init__(self,
uart="crossover",
sys_clk_freq=int(125e6),
with_bist=False,
with_analyzer=False):
platform = kc705.Platform()
# SoCCore ----------------------------------------------------------------------------------
SoCCore.__init__(self,
platform,
clk_freq=sys_clk_freq,
ident="LiteDRAM bench on KC705",
ident_version=True,
integrated_rom_size=0x10000,
integrated_rom_mode="rw",
uart_name=uart)
# CRG --------------------------------------------------------------------------------------
self.submodules.crg = _CRG(platform, sys_clk_freq)
# DDR3 SDRAM -------------------------------------------------------------------------------
self.submodules.ddrphy = s7ddrphy.K7DDRPHY(pads=PHYPadsReducer(
platform.request("ddram"), [0, 1, 2, 3, 4, 5, 6, 7]),
memtype="DDR3",
nphases=4,
sys_clk_freq=sys_clk_freq)
self.add_sdram("sdram",
phy=self.ddrphy,
module=MT8JTF12864(sys_clk_freq, "1:4"),
origin=self.mem_map["main_ram"],
with_bist=with_bist)
# UARTBone ---------------------------------------------------------------------------------
if uart != "serial":
self.add_uartbone(name="serial",
clk_freq=100e6,
baudrate=115200,
cd="uart")
# Etherbone --------------------------------------------------------------------------------
self.submodules.ethphy = LiteEthPHY(
clock_pads=self.platform.request("eth_clocks"),
pads=self.platform.request("eth"),
clk_freq=self.clk_freq)
self.add_etherbone(phy=self.ethphy)
# Analyzer ---------------------------------------------------------------------------------
if with_analyzer:
from litescope import LiteScopeAnalyzer
analyzer_signals = [self.ddrphy.dfi]
self.submodules.analyzer = LiteScopeAnalyzer(
analyzer_signals,
depth=256,
clock_domain="sys",
csr_csv="analyzer.csv")
# Leds -------------------------------------------------------------------------------------
from litex.soc.cores.led import LedChaser
self.submodules.leds = LedChaser(pads=platform.request_all("user_led"),
sys_clk_freq=sys_clk_freq)
def __init__(self,
uart="crossover",
sys_clk_freq=int(125e6),
channel=0,
with_bist=False,
with_analyzer=False):
platform = xcu1525.Platform()
# SoCCore ----------------------------------------------------------------------------------
SoCCore.__init__(self,
platform,
clk_freq=sys_clk_freq,
ident="LiteDRAM bench on XCU1525",
ident_version=True,
integrated_rom_size=0x10000,
integrated_rom_mode="rw",
uart_name=uart)
# CRG --------------------------------------------------------------------------------------
self.submodules.crg = _CRG(platform, sys_clk_freq, channel)
# DDR4 SDRAM -------------------------------------------------------------------------------
self.submodules.ddrphy = usddrphy.USPDDRPHY(pads=PHYPadsReducer(
platform.request("ddram", channel), [0, 1, 2, 3, 4, 5, 6, 7]),
memtype="DDR4",
sys_clk_freq=sys_clk_freq,
iodelay_clk_freq=500e6)
self.add_sdram("sdram",
phy=self.ddrphy,
module=MT40A512M8(sys_clk_freq, "1:4"),
origin=self.mem_map["main_ram"],
size=0x40000000,
with_bist=with_bist)
# Workaround for Vivado 2018.2 DRC, can be ignored and probably fixed on newer Vivado versions.
platform.add_platform_command(
"set_property SEVERITY {{Warning}} [get_drc_checks PDCN-2736]")
# UARTBone ---------------------------------------------------------------------------------
if uart != "serial":
self.add_uartbone(name="serial",
clk_freq=100e6,
baudrate=115200,
cd="uart")
# Analyzer ---------------------------------------------------------------------------------
if with_analyzer:
from litescope import LiteScopeAnalyzer
analyzer_signals = [self.ddrphy.dfi]
self.submodules.analyzer = LiteScopeAnalyzer(
analyzer_signals,
depth=256,
clock_domain="sys",
csr_csv="analyzer.csv")
# Leds -------------------------------------------------------------------------------------
from litex.soc.cores.led import LedChaser
self.submodules.leds = LedChaser(pads=platform.request_all("user_led"),
sys_clk_freq=sys_clk_freq)
def __init__(self,
sys_clk_freq=int(200e6),
with_pcie=False,
pcie_lanes=4,
**kwargs):
platform = quad_hdmi_recorder.Platform()
# SoCCore ----------------------------------------------------------------------------------
kwargs["uart_name"] = "crossover"
SoCCore.__init__(
self,
platform,
sys_clk_freq,
ident="LiteX SoC on Blackmagic Decklink Quad HDMI Recorder",
**kwargs)
# CRG --------------------------------------------------------------------------------------
self.submodules.crg = _CRG(platform, sys_clk_freq)
# JTAGBone --------------------------------------------------------------------------------
self.add_jtagbone()
# DDR3 SDRAM -------------------------------------------------------------------------------
if not self.integrated_main_ram_size:
self.submodules.ddrphy = usddrphy.USDDRPHY(
pads=PHYPadsReducer(platform.request("ddram"), [0, 1, 2, 3]),
memtype="DDR3",
sys_clk_freq=sys_clk_freq,
iodelay_clk_freq=200e6)
self.add_sdram("sdram",
phy=self.ddrphy,
module=MT41J256M16(sys_clk_freq, "1:4"),
l2_cache_size=kwargs.get("l2_size", 8192))
# PCIe -------------------------------------------------------------------------------------
# FIXME: Does not seem to be working when also enabling DRAM. Has been tested succesfully by
# disabling DRAM with --integrated-main-ram-size=0x100.
if with_pcie:
data_width = {
4: 128,
8: 256,
}[pcie_lanes]
self.submodules.pcie_phy = USPCIEPHY(
platform,
platform.request(f"pcie_x{pcie_lanes}"),
speed="gen3",
data_width=data_width,
bar0_size=0x20000)
self.add_pcie(phy=self.pcie_phy, ndmas=1)
# False Paths (FIXME: Improve integration).
platform.toolchain.pre_placement_commands.append(
"set_false_path -from [get_clocks sys_clk] -to [get_clocks pcie_clk_1]"
)
platform.toolchain.pre_placement_commands.append(
"set_false_path -from [get_clocks pcie_clk_1] -to [get_clocks sys_clk]"
)
def __init__(self,
sys_clk_freq=int(125e6),
cpu_count=1,
with_ethernet=False,
**kwargs):
VexRiscvSMP.litedram_width = 128
VexRiscvSMP.ibus_width = 64
VexRiscvSMP.dbus_width = 64
VexRiscvSMP.coherent_dma = True
platform = genesys2.Platform()
# SoCCore ----------------------------------------------------------------------------------
kwargs["integrated_rom_size"] = 0x10000
kwargs["csr_data_width"] = 8
SoCCore.__init__(self,
platform,
clk_freq=sys_clk_freq,
cpu_cls=VexRiscvSMP,
cpu_variant="default",
**kwargs)
self.add_constant("config_cpu_count", cpu_count) # for dts generation
# PLIC ------------------------------------------------------------------------------------
self.bus.add_slave("plic",
self.cpu.plicbus,
region=SoCRegion(origin=0xf0C00000,
size=0x400000,
cached=False))
# CLINT ------------------------------------------------------------------------------------
self.bus.add_slave("clint",
self.cpu.cbus,
region=SoCRegion(origin=0xf0010000,
size=0x10000,
cached=False))
# CRG --------------------------------------------------------------------------------------
self.submodules.crg = _CRG(platform, sys_clk_freq)
# DDR3 SDRAM -------------------------------------------------------------------------------
if not self.integrated_main_ram_size:
self.submodules.ddrphy = s7ddrphy.K7DDRPHY(
pads=PHYPadsReducer(platform.request("ddram"), [1, 2]),
memtype="DDR3",
nphases=4,
sys_clk_freq=sys_clk_freq,
cmd_latency=1)
self.add_csr("ddrphy")
self.add_sdram("sdram",
phy=self.ddrphy,
module=MT41J256M16(sys_clk_freq, "1:4"),
origin=self.mem_map["main_ram"],
size=kwargs.get("max_sdram_size", 0x40000000),
l2_cache_size=kwargs.get("l2_size", 8192),
l2_cache_min_data_width=kwargs.get(
"min_l2_data_width", 128),
l2_cache_reverse=True,
controller_settings=ControllerSettings(
cmd_buffer_buffered=False,
with_auto_precharge=False))
# Ethernet ---------------------------------------------------------------------------------
if with_ethernet:
self.submodules.ethphy = LiteEthPHYRGMII(
clock_pads=self.platform.request("eth_clocks"),
pads=self.platform.request("eth"))
self.add_csr("ethphy")
self.add_ethernet(phy=self.ethphy)
# JTAG ---------------------------------------------------------------------------------
self.submodules.jtag = S7JTAG()
self.comb += self.cpu.jtag_clk.eq(self.jtag.tck)
self.comb += self.cpu.jtag_enable.eq(1)
self.comb += self.cpu.jtag_capture.eq(self.jtag.capture)
self.comb += self.cpu.jtag_shift.eq(self.jtag.shift)
self.comb += self.cpu.jtag_update.eq(self.jtag.update)
self.comb += self.cpu.jtag_reset.eq(self.jtag.reset)
self.comb += self.cpu.jtag_tdi.eq(self.jtag.tdi)
self.comb += self.jtag.tdo.eq(self.cpu.jtag_tdo)
def __init__(self,
sys_clk_freq=int(100e6),
with_ethernet=False,
eth_phy="rgmii",
with_pcie=False,
**kwargs):
platform = ac701.Platform()
# SoCCore ----------------------------------------------------------------------------------
SoCCore.__init__(self,
platform,
sys_clk_freq,
ident="LiteX SoC on AC701",
ident_version=True,
**kwargs)
# CRG --------------------------------------------------------------------------------------
self.submodules.crg = _CRG(platform, sys_clk_freq)
# DDR3 SDRAM -------------------------------------------------------------------------------
if not self.integrated_main_ram_size:
self.submodules.ddrphy = s7ddrphy.A7DDRPHY(
pads=PHYPadsReducer(platform.request("ddram"), [0, 1, 2, 3]),
memtype="DDR3",
nphases=4,
sys_clk_freq=sys_clk_freq)
self.add_sdram("sdram",
phy=self.ddrphy,
module=MT8JTF12864(sys_clk_freq, "1:4"),
origin=self.mem_map["main_ram"],
size=kwargs.get("max_sdram_size", 0x40000000),
l2_cache_size=kwargs.get("l2_size", 8192),
l2_cache_min_data_width=kwargs.get(
"min_l2_data_width", 128),
l2_cache_reverse=True)
# Ethernet ---------------------------------------------------------------------------------
if with_ethernet:
# RGMII Ethernet PHY -------------------------------------------------------------------
if eth_phy == "rgmii":
# phy
self.submodules.ethphy = LiteEthPHYRGMII(
clock_pads=self.platform.request("eth_clocks"),
pads=self.platform.request("eth"))
# 1000BaseX Ethernet PHY ---------------------------------------------------------------
if eth_phy == "1000basex":
# phy
self.comb += self.platform.request("sfp_mgt_clk_sel0", 0).eq(0)
self.comb += self.platform.request("sfp_mgt_clk_sel1", 0).eq(0)
self.comb += self.platform.request("sfp_tx_disable_n", 0).eq(0)
qpll_settings = QPLLSettings(refclksel=0b001,
fbdiv=4,
fbdiv_45=5,
refclk_div=1)
refclk125 = self.platform.request("gtp_refclk")
refclk125_se = Signal()
self.specials += \
Instance("IBUFDS_GTE2",
i_CEB = 0,
i_I = refclk125.p,
i_IB = refclk125.n,
o_O = refclk125_se)
qpll = QPLL(refclk125_se, qpll_settings)
self.submodules += qpll
self.submodules.ethphy = A7_1000BASEX(
qpll_channel=qpll.channels[0],
data_pads=self.platform.request("sfp", 0),
sys_clk_freq=self.clk_freq)
self.add_ethernet(phy=self.ethphy)
# PCIe -------------------------------------------------------------------------------------
if with_pcie:
self.submodules.pcie_phy = S7PCIEPHY(platform,
platform.request("pcie_x4"),
data_width=128,
bar0_size=0x20000)
self.add_pcie(phy=self.pcie_phy, ndmas=1)
# Leds -------------------------------------------------------------------------------------
self.submodules.leds = LedChaser(pads=platform.request_all("user_led"),
sys_clk_freq=sys_clk_freq)
def __init__(self,
sys_clk_freq=int(100e6),
with_etherbone=True,
eth_ip="192.168.1.50",
with_video_terminal=False,
with_video_framebuffer=False,
**kwargs):
platform = sds1104xe.Platform()
# SoCCore ----------------------------------------------------------------------------------
if kwargs.get("uart_name", "serial") == "serial":
kwargs["uart_name"] = "crossover" # Defaults to Crossover UART.
SoCCore.__init__(self,
platform,
sys_clk_freq,
ident="LiteX SoC on Siglent SDS1104X-E",
**kwargs)
# CRG --------------------------------------------------------------------------------------
self.submodules.crg = _CRG(platform,
sys_clk_freq,
with_ethernet=with_etherbone)
# DDR3 SDRAM -------------------------------------------------------------------------------
if not self.integrated_main_ram_size:
self.submodules.ddrphy = s7ddrphy.A7DDRPHY(
pads=PHYPadsReducer(platform.request("ddram"), [0, 1, 2, 3]),
memtype="DDR3",
nphases=4,
sys_clk_freq=sys_clk_freq)
self.add_sdram("sdram",
phy=self.ddrphy,
module=MT41K64M16(sys_clk_freq, "1:4"),
l2_cache_size=kwargs.get("l2_size", 8192))
# Etherbone --------------------------------------------------------------------------------
if with_etherbone:
# FIXME: Simplify LiteEth Hybrid MAC integration.
from liteeth.common import convert_ip
from liteeth.mac import LiteEthMAC
from liteeth.core.arp import LiteEthARP
from liteeth.core.ip import LiteEthIP
from liteeth.core.udp import LiteEthUDP
from liteeth.core.icmp import LiteEthICMP
from liteeth.core import LiteEthUDPIPCore
from liteeth.frontend.etherbone import LiteEthEtherbone
# Ethernet PHY
self.submodules.ethphy = LiteEthPHYMII(
clock_pads=self.platform.request("eth_clocks"),
pads=self.platform.request("eth"))
etherbone_ip_address = convert_ip("192.168.1.51")
etherbone_mac_address = 0x10e2d5000001
# Ethernet MAC
self.submodules.ethmac = LiteEthMAC(phy=self.ethphy,
dw=8,
interface="hybrid",
endianness=self.cpu.endianness,
hw_mac=etherbone_mac_address)
# Software Interface.
self.add_memory_region("ethmac",
getattr(self.mem_map, "ethmac", None),
0x2000,
type="io")
self.add_wb_slave(self.mem_regions["ethmac"].origin,
self.ethmac.bus, 0x2000)
if self.irq.enabled:
self.irq.add("ethmac", use_loc_if_exists=True)
# Hardware Interface.
self.submodules.arp = LiteEthARP(self.ethmac,
etherbone_mac_address,
etherbone_ip_address,
sys_clk_freq,
dw=8)
self.submodules.ip = LiteEthIP(self.ethmac,
etherbone_mac_address,
etherbone_ip_address,
self.arp.table,
dw=8)
self.submodules.icmp = LiteEthICMP(self.ip,
etherbone_ip_address,
dw=8)
self.submodules.udp = LiteEthUDP(self.ip,
etherbone_ip_address,
dw=8)
self.add_constant(
"ETH_PHY_NO_RESET"
) # Disable reset from BIOS to avoid disabling Hardware Interface.
# Etherbone
self.submodules.etherbone = LiteEthEtherbone(self.udp,
1234,
mode="master")
self.add_wb_master(self.etherbone.wishbone.bus)
# Timing constraints
eth_rx_clk = self.ethphy.crg.cd_eth_rx.clk
eth_tx_clk = self.ethphy.crg.cd_eth_tx.clk
self.platform.add_period_constraint(eth_rx_clk,
1e9 / self.ethphy.rx_clk_freq)
self.platform.add_period_constraint(eth_tx_clk,
1e9 / self.ethphy.tx_clk_freq)
self.platform.add_false_path_constraints(self.crg.cd_sys.clk,
eth_rx_clk, eth_tx_clk)
# Video ------------------------------------------------------------------------------------
video_timings = ("800x480@60Hz", {
"pix_clk": 33.3e6,
"h_active": 800,
"h_blanking": 256,
"h_sync_offset": 210,
"h_sync_width": 1,
"v_active": 480,
"v_blanking": 45,
"v_sync_offset": 22,
"v_sync_width": 1,
})
if with_video_terminal or with_video_framebuffer:
self.submodules.videophy = VideoVGAPHY(platform.request("lcd"),
clock_domain="dvi")
if with_video_terminal:
self.add_video_terminal(phy=self.videophy,
timings=video_timings,
clock_domain="dvi")
if with_video_framebuffer:
self.add_video_framebuffer(phy=self.videophy,
timings=video_timings,
clock_domain="dvi")
def __init__(self,
uart="crossover",
sys_clk_freq=int(125e6),
with_bist=False,
with_analyzer=False):
platform = kcu105.Platform()
# SoCCore ----------------------------------------------------------------------------------
SoCCore.__init__(self,
platform,
clk_freq=sys_clk_freq,
ident="LiteDRAM bench on KCU105",
ident_version=True,
integrated_rom_size=0x10000,
integrated_rom_mode="rw",
uart_name=uart)
# CRG --------------------------------------------------------------------------------------
self.submodules.crg = _CRG(platform, sys_clk_freq)
# DDR4 SDRAM -------------------------------------------------------------------------------
self.submodules.ddrphy = usddrphy.USDDRPHY(pads=PHYPadsReducer(
platform.request("ddram"), [0, 1, 2, 3, 4, 5, 6, 7]),
memtype="DDR4",
sys_clk_freq=sys_clk_freq,
iodelay_clk_freq=200e6)
self.add_sdram("sdram",
phy=self.ddrphy,
module=EDY4016A(sys_clk_freq, "1:4"),
origin=self.mem_map["main_ram"],
size=0x40000000,
with_bist=with_bist)
# UARTBone ---------------------------------------------------------------------------------
if uart != "serial":
self.add_uartbone(name="serial",
clk_freq=100e6,
baudrate=115200,
cd="uart")
# Etherbone --------------------------------------------------------------------------------
self.submodules.ethphy = KU_1000BASEX(self.crg.cd_eth.clk,
data_pads=self.platform.request(
"sfp", 0),
sys_clk_freq=self.clk_freq)
self.comb += self.platform.request("sfp_tx_disable_n", 0).eq(1)
self.platform.add_platform_command(
"set_property SEVERITY {{Warning}} [get_drc_checks REQP-1753]")
self.add_etherbone(phy=self.ethphy)
# Analyzer ---------------------------------------------------------------------------------
if with_analyzer:
from litescope import LiteScopeAnalyzer
analyzer_signals = [self.ddrphy.dfi]
self.submodules.analyzer = LiteScopeAnalyzer(
analyzer_signals,
depth=256,
clock_domain="sys",
csr_csv="analyzer.csv")
# Leds -------------------------------------------------------------------------------------
from litex.soc.cores.led import LedChaser
self.submodules.leds = LedChaser(pads=platform.request_all("user_led"),
sys_clk_freq=sys_clk_freq)
def __init__(self, platform, core_config, **kwargs):
platform.add_extension(get_common_ios())
# Parameters -------------------------------------------------------------------------------
sys_clk_freq = core_config["sys_clk_freq"]
cpu_type = core_config["cpu"]
csr_expose = core_config.get("csr_expose", False)
csr_align = core_config.get("csr_align", 32)
if cpu_type is None:
kwargs["integrated_rom_size"] = 0
kwargs["integrated_sram_size"] = 0
kwargs["l2_size"] = 0
kwargs["min_l2_data_width"] = 0
kwargs["with_uart"] = False
kwargs["with_timer"] = False
kwargs["with_ctrl"] = False
kwargs["with_wishbone"] = False
else:
kwargs["l2_size"] = 0
kwargs["min_l2_data_width"] = 0
# SoCSDRAM ---------------------------------------------------------------------------------
SoCSDRAM.__init__(self, platform, sys_clk_freq,
cpu_type = cpu_type,
#cpu_variant = "lite",
csr_alignment = csr_align,
max_sdram_size = 0x01000000, # Only expose 16MB to the CPU, enough for Init/Calib.
**kwargs)
# CRG --------------------------------------------------------------------------------------
if core_config["sdram_phy"] in [litedram_phys.ECP5DDRPHY]:
self.submodules.crg = crg = LiteDRAMECP5DDRPHYCRG(platform, core_config)
if core_config["sdram_phy"] in [litedram_phys.A7DDRPHY, litedram_phys.K7DDRPHY, litedram_phys.V7DDRPHY]:
self.submodules.crg = LiteDRAMS7DDRPHYCRG(platform, core_config)
if core_config["sdram_phy"] in [litedram_phys.USDDRPHY, litedram_phys.USPDDRPHY]:
self.submodules.crg = LiteDRAMUSDDRPHYCRG(platform, core_config)
# DRAM -------------------------------------------------------------------------------------
# platform.add_extension(get_dram_ios(core_config))
platform.add_extension(get_dram_ios(core_config))
# ECP5DDRPHY
if core_config["sdram_phy"] in [litedram_phys.ECP5DDRPHY]:
assert core_config["memtype"] in ["DDR3"]
self.submodules.ddrphy = core_config["sdram_phy"](
pads = platform.request("ddram"),
sys_clk_freq = sys_clk_freq)
self.comb += crg.stop.eq(self.ddrphy.init.stop)
self.add_constant("ECP5DDRPHY")
sdram_module = core_config["sdram_module"](sys_clk_freq, "1:2")
# S7DDRPHY
if core_config["sdram_phy"] in [litedram_phys.A7DDRPHY, litedram_phys.K7DDRPHY, litedram_phys.V7DDRPHY]:
assert core_config["memtype"] in ["DDR2", "DDR3"]
self.submodules.ddrphy = core_config["sdram_phy"](
pads = platform.request("ddram"),
memtype = core_config["memtype"],
nphases = 4 if core_config["memtype"] == "DDR3" else 2,
sys_clk_freq = sys_clk_freq,
iodelay_clk_freq = core_config["iodelay_clk_freq"],
cmd_latency = core_config["cmd_latency"])
self.add_constant("CMD_DELAY", core_config["cmd_delay"])
if core_config["memtype"] == "DDR3":
self.ddrphy.settings.add_electrical_settings(
rtt_nom = core_config["rtt_nom"],
rtt_wr = core_config["rtt_wr"],
ron = core_config["ron"])
# USDDRPHY
if core_config["sdram_phy"] in [litedram_phys.USDDRPHY, litedram_phys.USPDDRPHY]:
assert core_config["memtype"] in ["DDR3", "DDR4"]
ddram_pads = platform.request("ddram")
# TODO make it configurable
ddram_pads = PHYPadsReducer(ddram_pads, modules=[0, 1, 2, 3])
self.submodules.ddrphy = core_config["sdram_phy"](
pads = ddram_pads,
memtype = core_config["memtype"],
sys_clk_freq = sys_clk_freq,
iodelay_clk_freq = core_config["iodelay_clk_freq"],
cmd_latency = core_config["cmd_latency"])
self.add_constant("USDDRPHY_DEBUG")
self.add_csr("ddrphy")
sdram_module = core_config["sdram_module"](sys_clk_freq,
"1:4" if core_config["memtype"] == "DDR3" else "1:2")
controller_settings = controller_settings=ControllerSettings(
cmd_buffer_depth=core_config["cmd_buffer_depth"])
#print("Before register, submodules are")
#print(self._submodules)
self.register_sdram(self.ddrphy,
geom_settings = sdram_module.geom_settings,
timing_settings = sdram_module.timing_settings,
controller_settings = controller_settings)
#feig Print out the PHY submodule
# verilog.convert(self.ddrphy).write("DDRPHY.v")
#print("After register, submodules are")
#print(self._submodules)
# DRAM Initialization ----------------------------------------------------------------------
self.submodules.ddrctrl = LiteDRAMCoreControl()
self.add_csr("ddrctrl")
self.comb += [
platform.request("init_done").eq(self.ddrctrl.init_done.storage),
platform.request("init_error").eq(self.ddrctrl.init_error.storage)
]
#print("Before setting up controller, submodules are")
#print(self._submodules)
print("Crossbar has {} master ports".format(len(self.sdram.crossbar.masters)))
# CSR port ---------------------------------------------------------------------------------
if csr_expose:
csr_port = csr_bus.Interface(
address_width = self.csr_address_width,
data_width = self.csr_data_width)
self.add_csr_master(csr_port)
platform.add_extension(get_csr_ios(self.csr_address_width, self.csr_data_width))
_csr_port_io = platform.request("csr_port", 0)
self.comb += [
csr_port.adr.eq(_csr_port_io.adr),
csr_port.we.eq(_csr_port_io.we),
csr_port.dat_w.eq(_csr_port_io.dat_w),
_csr_port_io.dat_r.eq(csr_port.dat_r),
]
if self.cpu_type == None:
csr_base = core_config.get("csr_base", 0)
self.shadow_base = csr_base;
# User ports -------------------------------------------------------------------------------
self.comb += [
platform.request("user_clk").eq(ClockSignal()),
platform.request("user_rst").eq(ResetSignal())
]
for name, port in core_config["user_ports"].items():
# Native -------------------------------------------------------------------------------
if port["type"] == "native":
user_port = self.sdram.crossbar.get_port()
platform.add_extension(get_native_user_port_ios(name,
user_port.address_width,
user_port.data_width))
_user_port_io = platform.request("user_port_{}".format(name))
self.comb += [
# cmd
user_port.cmd.valid.eq(_user_port_io.cmd_valid),
_user_port_io.cmd_ready.eq(user_port.cmd.ready),
user_port.cmd.we.eq(_user_port_io.cmd_we),
user_port.cmd.addr.eq(_user_port_io.cmd_addr),
# wdata
user_port.wdata.valid.eq(_user_port_io.wdata_valid),
_user_port_io.wdata_ready.eq(user_port.wdata.ready),
user_port.wdata.we.eq(_user_port_io.wdata_we),
user_port.wdata.data.eq(_user_port_io.wdata_data),
# rdata
_user_port_io.rdata_valid.eq(user_port.rdata.valid),
user_port.rdata.ready.eq(_user_port_io.rdata_ready),
_user_port_io.rdata_data.eq(user_port.rdata.data),
]
# Wishbone -----------------------------------------------------------------------------
elif port["type"] == "wishbone":
user_port = self.sdram.crossbar.get_port()
wb_port = wishbone.Interface(
user_port.data_width,
user_port.address_width)
wishbone2native = LiteDRAMWishbone2Native(wb_port, user_port)
self.submodules += wishbone2native
platform.add_extension(get_wishbone_user_port_ios(name,
len(wb_port.adr),
len(wb_port.dat_w)))
_wb_port_io = platform.request("user_port_{}".format(name))
self.comb += [
wb_port.adr.eq(_wb_port_io.adr),
wb_port.dat_w.eq(_wb_port_io.dat_w),
_wb_port_io.dat_r.eq(wb_port.dat_r),
wb_port.sel.eq(_wb_port_io.sel),
wb_port.cyc.eq(_wb_port_io.cyc),
wb_port.stb.eq(_wb_port_io.stb),
_wb_port_io.ack.eq(wb_port.ack),
wb_port.we.eq(_wb_port_io.we),
_wb_port_io.err.eq(wb_port.err),
]
# AXI ----------------------------------------------------------------------------------
elif port["type"] == "axi":
user_port = self.sdram.crossbar.get_port()
axi_port = LiteDRAMAXIPort(
user_port.data_width,
user_port.address_width + log2_int(user_port.data_width//8),
port["id_width"])
axi2native = LiteDRAMAXI2Native(axi_port, user_port)
self.submodules += axi2native
platform.add_extension(get_axi_user_port_ios(name,
axi_port.address_width,
axi_port.data_width,
port["id_width"]))
_axi_port_io = platform.request("user_port_{}".format(name))
self.comb += [
# aw
axi_port.aw.valid.eq(_axi_port_io.awvalid),
_axi_port_io.awready.eq(axi_port.aw.ready),
axi_port.aw.addr.eq(_axi_port_io.awaddr),
axi_port.aw.burst.eq(_axi_port_io.awburst),
axi_port.aw.len.eq(_axi_port_io.awlen),
axi_port.aw.size.eq(_axi_port_io.awsize),
axi_port.aw.id.eq(_axi_port_io.awid),
# w
axi_port.w.valid.eq(_axi_port_io.wvalid),
_axi_port_io.wready.eq(axi_port.w.ready),
axi_port.w.last.eq(_axi_port_io.wlast),
axi_port.w.strb.eq(_axi_port_io.wstrb),
axi_port.w.data.eq(_axi_port_io.wdata),
# b
_axi_port_io.bvalid.eq(axi_port.b.valid),
axi_port.b.ready.eq(_axi_port_io.bready),
_axi_port_io.bresp.eq(axi_port.b.resp),
_axi_port_io.bid.eq(axi_port.b.id),
# ar
axi_port.ar.valid.eq(_axi_port_io.arvalid),
_axi_port_io.arready.eq(axi_port.ar.ready),
axi_port.ar.addr.eq(_axi_port_io.araddr),
axi_port.ar.burst.eq(_axi_port_io.arburst),
axi_port.ar.len.eq(_axi_port_io.arlen),
axi_port.ar.size.eq(_axi_port_io.arsize),
axi_port.ar.id.eq(_axi_port_io.arid),
# r
_axi_port_io.rvalid.eq(axi_port.r.valid),
axi_port.r.ready.eq(_axi_port_io.rready),
_axi_port_io.rlast.eq(axi_port.r.last),
_axi_port_io.rresp.eq(axi_port.r.resp),
_axi_port_io.rdata.eq(axi_port.r.data),
_axi_port_io.rid.eq(axi_port.r.id),
]
# FIFO ---------------------------------------------------------------------------------
elif port["type"] == "fifo":
platform.add_extension(get_fifo_user_port_ios(name, user_port.data_width))
_user_fifo_io = platform.request("user_fifo_{}".format(name))
fifo = LiteDRAMFIFO(
data_width = user_port.data_width,
base = port["base"],
depth = port["depth"],
write_port = self.sdram.crossbar.get_port("write"),
write_threshold = port["depth"] - 32, # FIXME
read_port = self.sdram.crossbar.get_port("read"),
read_threshold = 32 # FIXME
)
self.submodules += fifo
self.comb += [
# in
fifo.sink.valid.eq(_user_fifo_io.in_valid),
_user_fifo_io.in_ready.eq(fifo.sink.ready),
fifo.sink.data.eq(_user_fifo_io.in_data),
# out
_user_fifo_io.out_valid.eq(fifo.source.valid),
fifo.source.ready.eq(_user_fifo_io.out_ready),
_user_fifo_io.out_data.eq(fifo.source.data),
]
else:
raise ValueError("Unsupported port type: {}".format(port["type"]))
print("Crossbar has {} master ports".format(len(self.sdram.crossbar.masters)))
## ComputeDRAM ports
# print (self._submodules)
self.comb += [
self.sdram.R1.eq(platform.request("ComputeDRAM_R1")),
self.sdram.R2.eq(platform.request("ComputeDRAM_R2")),
self.sdram.T1.eq(platform.request("ComputeDRAM_T1")),
self.sdram.T2.eq(platform.request("ComputeDRAM_T2")),
self.sdram.vld.eq(platform.request("ComputeDRAM_vld")),
platform.request("ComputeDRAM_rdy").eq(self.sdram.rdy)
]
def __init__(self,
sys_clk_freq=int(75e6),
cpu_count=1,
with_ethernet=False,
**kwargs):
VexRiscvSMP.litedram_width = 128
VexRiscvSMP.ibus_width = 64
VexRiscvSMP.dbus_width = 64
VexRiscvSMP.coherent_dma = True
platform = trellisboard.Platform(toolchain="trellis")
# SoCCore ----------------------------------------------------------------------------------
kwargs["integrated_rom_size"] = 0x10000
kwargs["csr_data_width"] = 8
SoCCore.__init__(self,
platform,
clk_freq=sys_clk_freq,
cpu_cls=VexRiscvSMP,
cpu_variant="default",
**kwargs)
self.add_constant("config_cpu_count", cpu_count) # for dts generation
# PLIC ------------------------------------------------------------------------------------
self.bus.add_slave("plic",
self.cpu.plicbus,
region=SoCRegion(origin=0xf0C00000,
size=0x400000,
cached=False))
# CLINT ------------------------------------------------------------------------------------
self.bus.add_slave("clint",
self.cpu.cbus,
region=SoCRegion(origin=0xf0010000,
size=0x10000,
cached=False))
# CRG --------------------------------------------------------------------------------------
self.submodules.crg = _CRG(platform, sys_clk_freq)
# DDR3 SDRAM -------------------------------------------------------------------------------
if not self.integrated_main_ram_size:
self.submodules.ddrphy = ECP5DDRPHY(pads=PHYPadsReducer(
platform.request("ddram"), [0, 1]),
sys_clk_freq=sys_clk_freq)
self.comb += self.crg.stop.eq(self.ddrphy.init.stop)
self.comb += self.crg.reset.eq(self.ddrphy.init.reset)
self.add_csr("ddrphy")
self.add_sdram("sdram",
phy=self.ddrphy,
module=MT41J256M16(sys_clk_freq, "1:2"),
origin=self.mem_map["main_ram"],
size=kwargs.get("max_sdram_size", 0x40000000),
l2_cache_size=kwargs.get("l2_size", 8192),
l2_cache_min_data_width=kwargs.get(
"min_l2_data_width", 128),
l2_cache_reverse=True,
controller_settings=ControllerSettings(
cmd_buffer_buffered=False,
with_auto_precharge=False))
# Ethernet ---------------------------------------------------------------------------------
if with_ethernet:
self.submodules.ethphy = LiteEthPHYRGMII(
clock_pads=self.platform.request("eth_clocks"),
pads=self.platform.request("eth"))
self.add_csr("ethphy")
self.add_ethernet(phy=self.ethphy)
