#!/usr/bin/env python3 import argparse from litex.gen import * from litex.build.generic_platform import * from litex.build.xilinx.platform import XilinxPlatform from litex.soc.interconnect import wishbone from litex.soc.integration.soc_core import * from litex.soc.integration.builder import * from liteeth.common import * from liteeth.phy.mii import LiteEthPHYMII from liteeth.phy.rmii import LiteEthPHYRMII from liteeth.phy.gmii import LiteEthPHYGMII from liteeth.phy.s7rgmii import LiteEthPHYRGMII from liteeth.core.mac import LiteEthMAC from liteeth.core import LiteEthUDPIPCore _io = [ ("sys_clock", 0, Pins(1)), ("sys_reset", 1, Pins(1)), # MII PHY Pads ("mii_eth_clocks", 0, Subsignal("tx", Pins(1)), Subsignal("rx", Pins(1)), ), ("mii_eth", 0, Subsignal("rst_n", Pins(1)), Subsignal("mdio", Pins(1)), Subsignal("mdc", Pins(1)), Subsignal("dv", Pins(1)), Subsignal("rx_er", Pins(1)), Subsignal("rx_data", Pins(4)), Subsignal("tx_en", Pins(4)), Subsignal("tx_data", Pins(4)), Subsignal("col", Pins(1)), Subsignal("crs", Pins(1)) ), # RMII PHY Pads ("rmii_eth_clocks", 0, Subsignal("ref_clk", Pins(1)) ), ("rmii_eth", 0, Subsignal("rst_n", Pins(1)), Subsignal("rx_data", Pins(2)), Subsignal("crs_dv", Pins(1)), Subsignal("tx_en", Pins(1)), Subsignal("tx_data", Pins(2)), Subsignal("mdc", Pins(1)), Subsignal("mdio", Pins(1)), ), # GMII PHY Pads ("gmii_eth_clocks", 0, Subsignal("tx", Pins(1)), Subsignal("gtx", Pins(1)), Subsignal("rx", Pins(1)) ), ("gmii_eth", 0, Subsignal("rst_n", Pins(1)), Subsignal("int_n", Pins(1)), Subsignal("mdio", Pins(1)), Subsignal("mdc", Pins(1)), Subsignal("dv", Pins(1)), Subsignal("rx_er", Pins(1)), Subsignal("rx_data", Pins(8)), Subsignal("tx_en", Pins(1)), Subsignal("tx_er", Pins(1)), Subsignal("tx_data", Pins(8)), Subsignal("col", Pins(1)), Subsignal("crs", Pins(1)) ), # RGMII PHY Pads ("rgmii_eth_clocks", 0, Subsignal("tx", Pins(1)), Subsignal("rx", Pins(1)) ), ("rgmii_eth", 0, Subsignal("rst_n", Pins(1)), Subsignal("int_n", Pins(1)), Subsignal("mdio", Pins(1)), Subsignal("mdc", Pins(1)), Subsignal("rx_ctl", Pins(1)), Subsignal("rx_data", Pins(4)), Subsignal("tx_ctl", Pins(1)), Subsignal("tx_data", Pins(4)) ), # Wishbone ("wishbone", 0, Subsignal("adr", Pins(30)), Subsignal("dat_r", Pins(32)), Subsignal("dat_w", Pins(32)), Subsignal("sel", Pins(4)), Subsignal("cyc", Pins(1)), Subsignal("stb", Pins(1)), Subsignal("ack", Pins(1)), Subsignal("we", Pins(1)), Subsignal("cti", Pins(3)), Subsignal("bte", Pins(2)), Subsignal("err", Pins(1)) ), # UDP ("udp_sink", 0, Subsignal("stb", Pins(1)), Subsignal("sop", Pins(1)), Subsignal("eop", Pins(1)), Subsignal("ack", Pins(1)), # param Subsignal("src_port", Pins(16)), Subsignal("dst_port", Pins(16)), Subsignal("ip_address", Pins(32)), Subsignal("length", Pins(16)), # payload Subsignal("data", Pins(32)), Subsignal("error", Pins(4)) ), ("udp_source", 0, Subsignal("stb", Pins(1)), Subsignal("sop", Pins(1)), Subsignal("eop", Pins(1)), Subsignal("ack", Pins(1)), # param Subsignal("src_port", Pins(16)), Subsignal("dst_port", Pins(16)), Subsignal("ip_address", Pins(32)), Subsignal("length", Pins(16)), # payload Subsignal("data", Pins(32)), Subsignal("error", Pins(4)) ), ] class CorePlatform(XilinxPlatform): name = "core" def __init__(self): XilinxPlatform.__init__(self, "xc7", _io) def do_finalize(self, *args, **kwargs): pass class WishboneBridge(Module): def __init__(self, interface): self.wishbone = interface class Core(SoCCore): csr_peripherals = ( "ethphy", "ethmac" ) csr_map = dict((n, v) for v, n in enumerate(csr_peripherals, start=16)) csr_map.update(SoCCore.csr_map) interrupt_map = { "ethmac": 2, } interrupt_map.update(SoCCore.interrupt_map) mem_map = { "ethmac": 0x50000000 } mem_map.update(SoCCore.mem_map) def __init__(self, phy, core, clk_freq, mac_address, ip_address, udp_port): platform = CorePlatform() SoCCore.__init__(self, platform, clk_freq=clk_freq, cpu_type=None, integrated_rom_size=0x0, integrated_sram_size=0x0, integrated_main_ram_size=0x0, csr_address_width=14, csr_data_width=8, with_uart=False, with_timer=False) self.submodules.crg = CRG(platform.request("sys_clock"), platform.request("sys_reset")) # ethernet if phy == "MII": self.submodules.ethphy = LiteEthPHYMII(platform.request("mii_eth_clocks"), platform.request("mii_eth")) elif phy == "RMII": self.submodules.ethphy = LiteEthPHYRMII(platform.request("rmii_eth_clocks"), platform.request("rmii_eth")) elif phy == "GMII": self.submodules.ethphy = LiteEthPHYGMII(platform.request("gmii_eth_clocks"), platform.request("gmii_eth")) elif phy == "RGMII": self.submodules.ethphy = LiteEthPHYRGMII(platform.request("rgmii_eth_clocks"), platform.request("rgmii_eth")) else: ValueError("Unsupported " + phy + " PHY"); # core if core == "mac": self.submodules.ethmac = LiteEthMAC(phy=self.ethphy, dw=32, interface="wishbone") self.add_wb_slave(mem_decoder(self.mem_map["ethmac"]), self.ethmac.bus) self.add_memory_region("ethmac", self.mem_map["ethmac"] | self.shadow_base, 0x2000) self.add_cpu_or_bridge(WishboneBridge(platform.request("wishbone"))) self.add_wb_master(self.cpu_or_bridge.wishbone) elif core == "udp": self.submodules.core = LiteEthUDPIPCore(self.ethphy, mac_address, convert_ip(ip_address), clk_freq) udp_port = self.core.udp.crossbar.get_port(udp_port, 8) # XXX avoid manual connect udp_sink = platform.request("udp_sink") self.comb += [ # control udp_port.sink.stb.eq(udp_sink.stb), udp_port.sink.sop.eq(udp_sink.sop), udp_port.sink.eop.eq(udp_sink.eop), udp_sink.ack.eq(udp_port.sink.ack), # param udp_port.sink.src_port.eq(udp_sink.src_port), udp_port.sink.dst_port.eq(udp_sink.dst_port), udp_port.sink.ip_address.eq(udp_sink.ip_address), udp_port.sink.length.eq(udp_sink.length), # payload udp_port.sink.data.eq(udp_sink.data), udp_port.sink.error.eq(udp_sink.error) ] udp_source = platform.request("udp_source") self.comb += [ # control udp_source.stb.eq(udp_port.source.stb), udp_source.sop.eq(udp_port.source.sop), udp_source.eop.eq(udp_port.source.eop), udp_port.source.ack.eq(udp_source.ack), # param udp_source.src_port.eq(udp_port.source.src_port), udp_source.dst_port.eq(udp_port.source.dst_port), udp_source.ip_address.eq(udp_port.source.ip_address), udp_source.length.eq(udp_port.source.length), # payload udp_source.data.eq(udp_port.source.data), udp_source.error.eq(udp_port.source.error) ] def main(): parser = argparse.ArgumentParser(description="LiteEth core builder") builder_args(parser) soc_core_args(parser) parser.add_argument("--phy", default="MII", help="Ethernet PHY(MII/RMII/GMII/RMGII)") parser.add_argument("--core", default="wishbone", help="Ethernet Core(wishbone/udp)") parser.add_argument("--mac_address", default=0x10e2d5000000, help="MAC address") parser.add_argument("--ip_address", default="192.168.0.42", help="IP address") args = parser.parse_args() soc = Core(phy=args.phy, core=args.core, clk_freq=100*1000, mac_address=args.mac_address, ip_address=args.ip_address, udp_port=6000, **soc_core_argdict(args)) builder = Builder(soc, output_dir="liteeth", compile_gateware=False, csr_csv="liteeth/csr.csv") builder.build(build_name="liteeth") if __name__ == "__main__": main()