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sipeed_tang_primer_20k: Add Ethernet/Etherbone (compiles but not yet working).

This commit is contained in:
Florent Kermarrec 2022-07-26 12:53:42 +02:00
parent abe08a96aa
commit 09b0c975f3
2 changed files with 53 additions and 3 deletions
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20
litex_boards/platforms/sipeed_tang_primer_20k.py
View File

@ -118,7 +118,7 @@ _dock_io = [
("user_led", 4, Pins( "CARD1:98"), IOStandard("LVCMOS18")),
("user_led", 5, Pins("CARD1:136"), IOStandard("LVCMOS18")),
# HDMI.
# HDMI
("hdmi", 0,
Subsignal("clk_p", Pins("CARD1:132")),
Subsignal("clk_n", Pins("CARD1:130")),
@ -134,6 +134,24 @@ _dock_io = [
Subsignal("scl", Pins("CARD1:97"), IOStandard("LVCMOS18")),
Misc("PULL_MODE=NONE"),
),
# RMII Ethernet
("eth_clocks", 0,
Subsignal("ref_clk", Pins("CARD1:148")),
IOStandard("LVCMOS18"),
),
("eth", 0,
Subsignal("rst_n", Pins("CARD1:176")),
Subsignal("rx_data", Pins("CARD1:56 CARD1:146")),
Subsignal("crs_dv", Pins("CARD1:41")),
Subsignal("tx_en", Pins("CARD1:83")),
Subsignal("tx_data", Pins("CARD1:140 CARD1:142")),
Subsignal("mdc", Pins("CARD1:95")),
Subsignal("mdio", Pins("CARD1:97")),
Subsignal("rx_er", Pins("CARD1:200")),
#Subsignal("int_n", Pins("CARD1:")),
IOStandard("LVCMOS18")
),
]
# Platform -----------------------------------------------------------------------------------------

36
litex_boards/targets/sipeed_tang_primer_20k.py
View File

@ -16,6 +16,8 @@ from litex.soc.integration.builder import *
from litex.soc.cores.led import LedChaser
from litex.soc.cores.video import *
from liteeth.phy.rmii import LiteEthPHYRMII
from litex_boards.platforms import sipeed_tang_primer_20k
from litex.soc.cores.hyperbus import HyperRAM
@ -65,7 +67,13 @@ class _CRG(Module):
# BaseSoC ------------------------------------------------------------------------------------------
class BaseSoC(SoCCore):
def __init__(self, sys_clk_freq=int(48e6), with_spi_flash=False, with_led_chaser=True, with_video_terminal=False, **kwargs):
def __init__(self, sys_clk_freq=int(48e6), with_spi_flash=False, with_led_chaser=True,
with_video_terminal = False,
with_ethernet = False,
with_etherbone = False,
eth_ip = "192.168.1.50",
eth_dynamic_ip = False,
**kwargs):
platform = sipeed_tang_primer_20k.Platform()
# CRG --------------------------------------------------------------------------------------
@ -82,9 +90,10 @@ class BaseSoC(SoCCore):
# Video ------------------------------------------------------------------------------------
if with_video_terminal:
# FIXME: Un-tested.
self.submodules.videophy = VideoHDMIPHY(platform.request("hdmi"), clock_domain="hdmi", pn_swap=["r", "g", "b"])
self.add_video_colorbars(phy=self.videophy, timings="640x480@60Hz", clock_domain="hdmi")
#self.add_video_terminal(phy=self.videophy, timings="640x480@75Hz", clock_domain="hdmi") # FIXME: Un-tested.
#self.add_video_terminal(phy=self.videophy, timings="640x480@75Hz", clock_domain="hdmi")
# Leds -------------------------------------------------------------------------------------
if with_led_chaser:
@ -93,6 +102,20 @@ class BaseSoC(SoCCore):
sys_clk_freq = sys_clk_freq
)
# Ethernet / Etherbone ---------------------------------------------------------------------
if with_ethernet or with_etherbone:
# FIXME: Un-tested.
from liteeth.phy.rmii import LiteEthPHYRMII
self.submodules.ethphy = LiteEthPHYRMII(
clock_pads = self.platform.request("eth_clocks"),
pads = self.platform.request("eth"),
refclk_cd = None
)
if with_ethernet:
self.add_ethernet(phy=self.ethphy, dynamic_ip=eth_dynamic_ip, with_timing_constraints=False)
if with_etherbone:
self.add_etherbone(phy=self.ethphy, ip_address=eth_ip, with_timing_constraints=False)
# Build --------------------------------------------------------------------------------------------
def main():
@ -108,6 +131,11 @@ def main():
sdopts.add_argument("--with-sdcard", action="store_true", help="Enable SDCard support.")
target_group.add_argument("--with-spi-flash", action="store_true", help="Enable SPI Flash (MMAPed).")
target_group.add_argument("--with-video-terminal", action="store_true", help="Enable Video Terminal (HDMI).")
ethopts = target_group.add_mutually_exclusive_group()
ethopts.add_argument("--with-ethernet", action="store_true", help="Add Ethernet.")
ethopts.add_argument("--with-etherbone", action="store_true", help="Add EtherBone.")
target_group.add_argument("--eth-ip", default="192.168.1.50", help="Etherbone IP address.")
target_group.add_argument("--eth-dynamic-ip", action="store_true", help="Enable dynamic Ethernet IP addresses setting.")
builder_args(parser)
soc_core_args(parser)
args = parser.parse_args()
@ -116,6 +144,10 @@ def main():
sys_clk_freq = int(float(args.sys_clk_freq)),
with_spi_flash = args.with_spi_flash,
with_video_terminal = args.with_video_terminal,
with_ethernet = args.with_ethernet,
with_etherbone = args.with_etherbone,
eth_ip = args.eth_ip,
eth_dynamic_ip = args.eth_dynamic_ip,
**soc_core_argdict(args)
)
if args.with_spi_sdcard: