def __init__(self, platform, *args, **kwargs):
# Need a larger integrated ROM on or1k to fit the BIOS with TFTP support.
if kwargs.get('cpu_type', 'lm32') != 'lm32':
kwargs['integrated_rom_size'] = 0x10000
BaseSoC.__init__(self, platform, *args, **kwargs)
# Ethernet PHY
self.submodules.ethphy = LiteEthPHYRGMII(
platform.request("eth_clocks"), platform.request("eth"))
self.add_csr("ethphy")
# Ethernet MAC
ethmac_win_size = 0x2000
self.submodules.ethmac = LiteEthMAC(phy=self.ethphy,
dw=32,
interface="wishbone",
endianness=self.cpu.endianness)
self.add_wb_slave(self.mem_map["ethmac"], self.ethmac.bus,
ethmac_win_size)
self.add_memory_region("ethmac",
self.mem_map["ethmac"],
ethmac_win_size,
type="io")
self.add_csr("ethmac")
self.add_interrupt("ethmac")
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, 8.0)
self.platform.add_period_constraint(self.ethphy.crg.cd_eth_tx.clk, 8.0)
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)
self.submodules.ethphy = LiteEthPHYRGMII(
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, 8.0)
self.platform.add_period_constraint(self.ethphy.crg.cd_eth_tx.clk, 8.0)
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):
BaseSoC.__init__(self, platform, *args, **kwargs)
self.submodules.ethphy = LiteEthPHYRGMII(
platform.request("eth_clocks"), platform.request("eth"))
self.platform.add_source("gateware/rgmii_if.vhd")
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.specials += [
Keep(self.ethphy.crg.cd_eth_rx.clk),
Keep(self.ethphy.crg.cd_eth_tx.clk),
]
self.platform.add_period_constraint(self.ethphy.crg.cd_eth_rx.clk, 8.0)
self.platform.add_period_constraint(self.ethphy.crg.cd_eth_tx.clk, 8.0)
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)