from litex.boards.platforms import netv2
from litex.soc.cores.clock import *
+from litex.soc.integration.soc_core import *
from litex.soc.integration.soc_sdram import *
from litex.soc.integration.builder import *
from litedram.phy import s7ddrphy
from liteeth.phy.rmii import LiteEthPHYRMII
-from liteeth.mac import LiteEthMAC
# CRG ----------------------------------------------------------------------------------------------
# BaseSoC ------------------------------------------------------------------------------------------
-class BaseSoC(SoCSDRAM):
- def __init__(self, sys_clk_freq=int(100e6), **kwargs):
+class BaseSoC(SoCCore):
+ def __init__(self, sys_clk_freq=int(100e6), with_ethernet=False, **kwargs):
platform = netv2.Platform()
- # SoCSDRAM ---------------------------------------------------------------------------------
- SoCSDRAM.__init__(self, platform, clk_freq=sys_clk_freq, **kwargs)
+ # SoCCore ---------------------------------------------------------------------------------
+ SoCCore.__init__(self, platform, clk_freq=sys_clk_freq, **kwargs)
# CRG --------------------------------------------------------------------------------------
self.submodules.crg = _CRG(platform, sys_clk_freq)
nphases = 4,
sys_clk_freq = sys_clk_freq)
self.add_csr("ddrphy")
- sdram_module = K4B2G1646F(sys_clk_freq, "1:4")
- self.register_sdram(self.ddrphy,
- geom_settings = sdram_module.geom_settings,
- timing_settings = sdram_module.timing_settings)
-
-# EthernetSoC --------------------------------------------------------------------------------------
-
-class EthernetSoC(BaseSoC):
- mem_map = {
- "ethmac": 0xb0000000,
- }
- mem_map.update(BaseSoC.mem_map)
-
- def __init__(self, **kwargs):
- BaseSoC.__init__(self, **kwargs)
+ self.add_sdram("sdram",
+ phy = self.ddrphy,
+ module = K4B2G1646F(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
+ )
# 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_regions["ethmac"].origin, 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()