def main():
parser = argparse.ArgumentParser(description="LiteX SoC on Acorn CLE 215+")
parser.add_argument("--build", action="store_true", help="Build bitstream")
parser.add_argument("--load", action="store_true", help="Load bitstream")
parser.add_argument("--flash", action="store_true", help="Flash bitstream")
builder_args(parser)
soc_sdram_args(parser)
args = parser.parse_args()
# Enforce arguments
args.uart_name = "crossover"
args.csr_data_width = 32
platform = acorn_cle_215.Platform()
soc = PCIeSoC(platform, **soc_sdram_argdict(args))
builder = Builder(soc, **builder_argdict(args))
vns = builder.build(run=args.build)
soc.generate_software_headers()
if args.load:
prog = soc.platform.create_programmer()
prog.load_bitstream(os.path.join(builder.gateware_dir, soc.build_name + ".bit"))
if args.flash:
prog = soc.platform.create_programmer()
prog.load_bitstream(os.path.join(builder.gateware_dir, soc.build_name + ".bin"))
def main():
parser = argparse.ArgumentParser(
description="LiteSATA bench on Acorn CLE 215+")
parser.add_argument("--build", action="store_true", help="Build bitstream")
parser.add_argument("--load",
action="store_true",
help="Load bitstream (to SRAM)")
parser.add_argument("--gen",
default="2",
help="SATA Gen: 1 or 2 (default)")
parser.add_argument("--with-analyzer",
action="store_true",
help="Add LiteScope Analyzer")
args = parser.parse_args()
platform = acorn_cle_215.Platform()
platform.add_extension(_sata_io)
soc = SATATestSoC(platform,
"gen" + args.gen,
with_analyzer=args.with_analyzer)
builder = Builder(soc, csr_csv="csr.csv")
builder.build(run=args.build)
if args.load:
prog = soc.platform.create_programmer()
prog.load_bitstream(
os.path.join(builder.gateware_dir, soc.build_name + ".bit"))
def main():
parser = argparse.ArgumentParser(description="LiteX SoC on Acorn CLE 215+")
parser.add_argument("--build", action="store_true", help="Build bitstream")
parser.add_argument("--with-pcie",
action="store_true",
help="Enable PCIe support")
parser.add_argument("--driver",
action="store_true",
help="Generate PCIe driver")
parser.add_argument("--load", action="store_true", help="Load bitstream")
parser.add_argument("--flash", action="store_true", help="Flash bitstream")
builder_args(parser)
soc_sdram_args(parser)
args = parser.parse_args()
# Enforce arguments
args.csr_data_width = 32
platform = acorn_cle_215.Platform()
soc = BaseSoC(platform,
with_pcie=args.with_pcie,
**soc_sdram_argdict(args))
builder = Builder(soc, **builder_argdict(args))
builder.build(run=args.build)
if args.driver:
generate_litepcie_software(soc,
os.path.join(builder.output_dir, "driver"))
if args.load:
prog = soc.platform.create_programmer()
prog.load_bitstream(
os.path.join(builder.gateware_dir, soc.build_name + ".bit"))
if args.flash:
prog = soc.platform.create_programmer()
prog.load_bitstream(
os.path.join(builder.gateware_dir, soc.build_name + ".bin"))
def __init__(self, with_pcie=False, **kwargs):
platform = acorn_cle_215.Platform()
sys_clk_freq = int(100e6)
# SoCCore ----------------------------------------------------------------------------------
SoCCore.__init__(self, platform, sys_clk_freq,
ident = "LiteX SoC on Acorn CLE 215+",
ident_version = True,
**kwargs)
# CRG --------------------------------------------------------------------------------------
self.submodules.crg = CRG(platform, sys_clk_freq)
self.add_csr("crg")
# DDR3 SDRAM -------------------------------------------------------------------------------
if not self.integrated_main_ram_size:
self.submodules.ddrphy = s7ddrphy.A7DDRPHY(platform.request("ddram"),
memtype = "DDR3",
nphases = 4,
sys_clk_freq = sys_clk_freq,
iodelay_clk_freq = 200e6)
self.add_csr("ddrphy")
self.add_sdram("sdram",
phy = self.ddrphy,
module = MT41K512M16(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
)
# PCIe -------------------------------------------------------------------------------------
if with_pcie:
# PHY
self.submodules.pcie_phy = S7PCIEPHY(platform, platform.request("pcie_x4"),
data_width = 128,
bar0_size = 0x20000)
platform.add_false_path_constraints(self.crg.cd_sys.clk, self.pcie_phy.cd_pcie.clk)
self.add_csr("pcie_phy")
self.comb += platform.request("pcie_clkreq_n").eq(0)
# Endpoint
self.submodules.pcie_endpoint = LitePCIeEndpoint(self.pcie_phy, max_pending_requests=8)
# Wishbone bridge
self.submodules.pcie_bridge = LitePCIeWishboneBridge(self.pcie_endpoint,
base_address = self.mem_map["csr"])
self.add_wb_master(self.pcie_bridge.wishbone)
# DMA0
self.submodules.pcie_dma0 = LitePCIeDMA(self.pcie_phy, self.pcie_endpoint,
with_buffering = True, buffering_depth=1024,
with_loopback = True)
self.add_csr("pcie_dma0")
# DMA1
self.submodules.pcie_dma1 = LitePCIeDMA(self.pcie_phy, self.pcie_endpoint,
with_buffering = True, buffering_depth=1024,
with_loopback = True)
self.add_csr("pcie_dma1")
self.add_constant("DMA_CHANNELS", 2)
# MSI
self.submodules.pcie_msi = LitePCIeMSI()
self.add_csr("pcie_msi")
self.comb += self.pcie_msi.source.connect(self.pcie_phy.msi)
self.interrupts = {
"PCIE_DMA0_WRITER": self.pcie_dma0.writer.irq,
"PCIE_DMA0_READER": self.pcie_dma0.reader.irq,
"PCIE_DMA1_WRITER": self.pcie_dma1.writer.irq,
"PCIE_DMA1_READER": self.pcie_dma1.reader.irq,
}
for i, (k, v) in enumerate(sorted(self.interrupts.items())):
self.comb += self.pcie_msi.irqs[i].eq(v)
self.add_constant(k + "_INTERRUPT", i)
# Leds -------------------------------------------------------------------------------------
self.submodules.leds = LedChaser(
pads = platform.request_all("user_led"),
sys_clk_freq = sys_clk_freq)
self.add_csr("leds")
def __init__(self,
sys_clk_freq=int(100e6),
with_pcie=False,
with_sata=False,
**kwargs):
platform = acorn_cle_215.Platform()
# SoCCore ----------------------------------------------------------------------------------
SoCCore.__init__(self,
platform,
sys_clk_freq,
ident="LiteX SoC on Acorn CLE 215+",
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(
platform.request("ddram"),
memtype="DDR3",
nphases=4,
sys_clk_freq=sys_clk_freq,
iodelay_clk_freq=200e6)
self.add_csr("ddrphy")
self.add_sdram("sdram",
phy=self.ddrphy,
module=MT41K512M16(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)
# PCIe -------------------------------------------------------------------------------------
if with_pcie:
self.submodules.pcie_phy = S7PCIEPHY(platform,
platform.request("pcie_x4"),
data_width=128,
bar0_size=0x20000)
self.add_csr("pcie_phy")
self.add_pcie(phy=self.pcie_phy, ndmas=1)
# SATA -------------------------------------------------------------------------------------
if with_sata:
from litex.build.generic_platform import Subsignal, Pins
from litesata.phy import LiteSATAPHY
# IOs
_sata_io = [
# PCIe 2 SATA Custom Adapter (With PCIe Riser / SATA cable mod).
(
"pcie2sata",
0,
Subsignal("tx_p", Pins("B6")),
Subsignal("tx_n", Pins("A6")),
Subsignal("rx_p", Pins("B10")),
Subsignal("rx_n", Pins("A10")),
),
]
platform.add_extension(_sata_io)
# RefClk, Generate 150MHz from PLL.
self.clock_domains.cd_sata_refclk = ClockDomain()
self.crg.pll.create_clkout(self.cd_sata_refclk, 150e6)
sata_refclk = ClockSignal("sata_refclk")
platform.add_platform_command(
"set_property SEVERITY {{Warning}} [get_drc_checks REQP-49]")
# PHY
self.submodules.sata_phy = LiteSATAPHY(
platform.device,
refclk=sata_refclk,
pads=platform.request("pcie2sata"),
gen="gen2",
clk_freq=sys_clk_freq,
data_width=16)
self.add_csr("sata_phy")
# Core
self.add_sata(phy=self.sata_phy, mode="read+write")
# Leds -------------------------------------------------------------------------------------
self.submodules.leds = LedChaser(pads=platform.request_all("user_led"),
sys_clk_freq=sys_clk_freq)
self.add_csr("leds")