Hardware
/
litex-boards
mirror of https://github.com/litex-hub/litex-boards.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

nexys4ddr: etherbone support

This commit is contained in:
Gabriel Somlo 2021-01-15 12:14:40 -05:00
parent 6a5f2f59a6
commit e71a4940c0
1 changed files with 12 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
litex_boards/targets/nexys4ddr.py
View File

@ -56,7 +56,7 @@ class _CRG(Module):
# BaseSoC ------------------------------------------------------------------------------------------
class BaseSoC(SoCCore):
def __init__(self, sys_clk_freq=int(75e6), with_ethernet=False, with_vga=False, **kwargs):
def __init__(self, sys_clk_freq=int(75e6), with_ethernet=False, with_etherbone=False, with_vga=False, **kwargs):
platform = nexys4ddr.Platform()
# SoCCore ----------------------------------_-----------------------------------------------
@ -85,13 +85,16 @@ class BaseSoC(SoCCore):
l2_cache_reverse = True
)
# Ethernet ---------------------------------------------------------------------------------
if with_ethernet:
# Ethernet / Etherbone ---------------------------------------------------------------------
if with_ethernet or with_etherbone:
self.submodules.ethphy = LiteEthPHYRMII(
clock_pads = self.platform.request("eth_clocks"),
pads = self.platform.request("eth"))
self.add_csr("ethphy")
if with_ethernet:
self.add_ethernet(phy=self.ethphy)
if with_etherbone:
self.add_etherbone(phy=self.ethphy)
# VGA terminal -----------------------------------------------------------------------------
if with_vga:
@ -120,6 +123,7 @@ def main():
parser.add_argument("--load", action="store_true", help="Load bitstream")
parser.add_argument("--sys-clk-freq", default=75e6, help="System clock frequency (default: 75MHz)")
parser.add_argument("--with-ethernet", action="store_true", help="Enable Ethernet support")
parser.add_argument("--with-etherbone", action="store_true", help="Enable Etherbone support")
parser.add_argument("--with-spi-sdcard", action="store_true", help="Enable SPI-mode SDCard support")
parser.add_argument("--with-sdcard", action="store_true", help="Enable SDCard support")
parser.add_argument("--with-vga", action="store_true", help="Enable VGA support")
@ -127,9 +131,11 @@ def main():
soc_sdram_args(parser)
args = parser.parse_args()
assert not (args.with_ethernet and args.with_etherbone)
soc = BaseSoC(
sys_clk_freq = int(float(args.sys_clk_freq)),
with_ethernet = args.with_ethernet,
with_etherbone = args.with_etherbone,
**soc_sdram_argdict(args)
)
assert not (args.with_spi_sdcard and args.with_sdcard)