def __init__(self, platform, *args, **kwargs):
# Need a larger integrated ROM on or1k to fit the BIOS with TFTP support.
if 'integrated_rom_size' not in kwargs and kwargs.get(
'cpu_type', 'lm32') == 'or1k':
kwargs['integrated_rom_size'] = 0x10000
BaseSoC.__init__(self, platform, *args, **kwargs)
self.submodules.ethphy = LiteEthPHY(platform.request("eth_clocks"),
platform.request("eth"))
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.ethphy.crg.cd_eth_rx.clk.attr.add("keep")
self.ethphy.crg.cd_eth_tx.clk.attr.add("keep")
#self.platform.add_period_constraint(self.crg.cd_sys.clk, 10.0)
self.platform.add_period_constraint(self.ethphy.crg.cd_eth_rx.clk,
40.0)
self.platform.add_period_constraint(self.ethphy.crg.cd_eth_tx.clk,
40.0)
self.platform.add_false_path_constraints(self.crg.cd_sys.clk,
self.ethphy.crg.cd_eth_rx.clk,
self.ethphy.crg.cd_eth_tx.clk)
def __init__(self, platform, *args, **kwargs):
# Need a larger integrated ROM on or1k to fit the BIOS with TFTP support.
if 'integrated_rom_size' not in kwargs and kwargs.get(
'cpu_type', 'lm32') != 'lm32':
kwargs['integrated_rom_size'] = 0x10000
BaseSoC.__init__(self, platform, *args, **kwargs)
# Ethernet ---------------------------------------------------------------------------------
# Ethernet Phy
self.submodules.ethphy = LiteEthPHY(
clock_pads=self.platform.request("eth_clocks"),
pads=self.platform.request("eth"))
self.add_csr("ethphy")
# Ethernet Core
etherbone_mac_address = 0x10e2d5000000
etherbone_ip_address = "192.168.100.50"
self.submodules.ethcore = LiteEthUDPIPCore(
phy=self.ethphy,
mac_address=etherbone_mac_address,
ip_address=etherbone_ip_address,
clk_freq=self.clk_freq)
# Etherbone Core
self.submodules.etherbone = LiteEthEtherbone(self.ethcore.udp, 1234)
self.add_wb_master(self.etherbone.wishbone.bus)
# timing constraints
self.platform.add_period_constraint(self.ethphy.crg.cd_eth_rx.clk,
1e9 / 25e6)
self.platform.add_period_constraint(self.ethphy.crg.cd_eth_tx.clk,
1e9 / 25e6)
self.platform.add_false_path_constraints(self.crg.cd_sys.clk,
self.ethphy.crg.cd_eth_rx.clk,
self.ethphy.crg.cd_eth_tx.clk)
def __init__(self, platform, *args, **kwargs):
BaseSoC.__init__(self, platform, *args, **kwargs)
self.submodules.ethphy = LiteEthPHY(
platform.request("eth_clocks"),
platform.request("eth"))
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.ethphy.crg.cd_eth_rx.clk.attr.add("keep")
self.ethphy.crg.cd_eth_tx.clk.attr.add("keep")
#self.platform.add_period_constraint(self.crg.cd_sys.clk, 10.0)
self.platform.add_period_constraint(self.ethphy.crg.cd_eth_rx.clk, 40.0)
self.platform.add_period_constraint(self.ethphy.crg.cd_eth_tx.clk, 40.0)
self.platform.add_false_path_constraints(
self.crg.cd_sys.clk,
self.ethphy.crg.cd_eth_rx.clk,
self.ethphy.crg.cd_eth_tx.clk)