from litedram.phy import s7ddrphy
from liteeth.phy.rmii import LiteEthPHYRMII
-from liteeth.mac import LiteEthMAC
# CRG ----------------------------------------------------------------------------------------------
# BaseSoC ------------------------------------------------------------------------------------------
class BaseSoC(SoCCore):
- def __init__(self, sys_clk_freq=int(100e6), **kwargs):
+ def __init__(self, sys_clk_freq=int(100e6), with_ethernet=False, **kwargs):
platform = netv2.Platform()
# SoCCore ---------------------------------------------------------------------------------
l2_cache_reverse = True
)
-# EthernetSoC --------------------------------------------------------------------------------------
-
-class EthernetSoC(BaseSoC):
- mem_map = {
- "ethmac": 0xb0000000,
- }
- mem_map.update(BaseSoC.mem_map)
-
- def __init__(self, **kwargs):
- BaseSoC.__init__(self, **kwargs)
-
# Ethernet ---------------------------------------------------------------------------------
- # phy
- self.submodules.ethphy = LiteEthPHYRMII(
- clock_pads = self.platform.request("eth_clocks"),
- pads = self.platform.request("eth"))
- self.add_csr("ethphy")
- # mac
- self.submodules.ethmac = LiteEthMAC(
- phy = self.ethphy,
- dw = 32,
- interface = "wishbone",
- endianness = self.cpu.endianness)
- self.add_memory_region("ethmac", self.mem_map["ethmac"], 0x2000, type="io")
- self.add_wb_slave(self.mem_map["ethmac"], self.ethmac.bus, 0x2000)
- self.add_csr("ethmac")
- self.add_interrupt("ethmac")
- # timing constraints
- self.platform.add_period_constraint(self.ethphy.crg.cd_eth_rx.clk, 1e9/50e6)
- self.platform.add_period_constraint(self.ethphy.crg.cd_eth_tx.clk, 1e9/50e6)
- 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)
+ if with_ethernet:
+ self.submodules.ethphy = LiteEthPHYRMII(
+ clock_pads = self.platform.request("eth_clocks"),
+ pads = self.platform.request("eth"))
+ self.add_csr("ethphy")
+ self.add_ethernet(phy=self.ethphy)
# Build --------------------------------------------------------------------------------------------
help="enable Ethernet support")
args = parser.parse_args()
- cls = EthernetSoC if args.with_ethernet else BaseSoC
- soc = cls(**soc_sdram_argdict(args))
+ soc = BaseSoC(with_ethernet=args.with_ethernet, **soc_sdram_argdict(args))
builder = Builder(soc, **builder_argdict(args))
builder.build()