Hardware
/
liteeth
mirror of https://github.com/enjoy-digital/liteeth.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

phy/usrgmii: cleanup (style, indent)

This commit is contained in:
Florent Kermarrec 2019-09-28 22:16:07 +02:00
parent 4bc79cefd8
commit 4d9e74f10a
1 changed files with 83 additions and 85 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

70
liteeth/phy/usrgmii.py
View File

@ -2,10 +2,10 @@
# License: BSD # License: BSD
# RGMII PHY for Ultrascale Xilinx FPGAs # RGMII PHY for Ultrascale Xilinx FPGAs
# Tested on hardware (HTG-940) with liteeth: ad187d litex: 41fe7c
from migen.genlib.resetsync import AsyncResetSynchronizer
from liteeth.common import * from liteeth.common import *
from migen.genlib.resetsync import AsyncResetSynchronizer
from liteeth.phy.common import * from liteeth.phy.common import *
@ -25,7 +25,9 @@ class LiteEthPHYRGMIITX(Module):
i_D1=sink.valid, i_D1=sink.valid,
i_D2=sink.valid, i_D2=sink.valid,
o_Q=tx_ctl_obuf), o_Q=tx_ctl_obuf),
Instance("OBUF", i_I=tx_ctl_obuf, o_O=pads.tx_ctl) Instance("OBUF",
i_I=tx_ctl_obuf,
o_O=pads.tx_ctl)
] ]
for i in range(4): for i in range(4):
self.specials += [ self.specials += [
@ -35,7 +37,9 @@ class LiteEthPHYRGMIITX(Module):
i_D1=sink.data[i], i_D1=sink.data[i],
i_D2=sink.data[4 + i], i_D2=sink.data[4 + i],
o_Q=tx_data_obuf[i]), o_Q=tx_data_obuf[i]),
Instance("OBUF", i_I=tx_data_obuf[i], o_O=pads.tx_data[i]) Instance("OBUF",
i_I=tx_data_obuf[i],
o_O=pads.tx_data[i])
] ]
self.comb += sink.ready.eq(1) self.comb += sink.ready.eq(1)
@ -55,17 +59,14 @@ class LiteEthPHYRGMIIRX(Module):
self.specials += [ self.specials += [
Instance("IBUF", i_I=pads.rx_ctl, o_O=rx_ctl_ibuf), Instance("IBUF", i_I=pads.rx_ctl, o_O=rx_ctl_ibuf),
# Using 0 delay throug the IDELAYE3 element.
# DELAY_TYPE is COUNT, and _FORMAT is FIXED
Instance("IDELAYE3", Instance("IDELAYE3",
# Using the following defaults in comments. p_DELAY_SRC="IDATAIN",
# p_DELAY_SRC="IDATAIN", p_CASCADE="NONE",
# p_CASCADE="NONE", p_DELAY_TYPE="FIXED",
# p_DELAY_TYPE="FIXED", p_DELAY_VALUE=0,
# p_DELAY_VALUE=0, p_REFCLK_FREQUENCY=300.0,
# p_REFCLK_FREQUENCY=300.0, # default DELAY_FORMAT=COUNT
p_DELAY_FORMAT="COUNT", p_DELAY_FORMAT="COUNT",
# p_UPDATE_MODE="ASYNC", # We never update p_UPDATE_MODE="ASYNC",
i_CASC_IN=0, i_CASC_IN=0,
i_CASC_RETURN=0, i_CASC_RETURN=0,
i_CE=0, i_CE=0,
@ -85,19 +86,18 @@ class LiteEthPHYRGMIIRX(Module):
i_CB=ClockSignal("eth_rx"), i_CB=ClockSignal("eth_rx"),
i_R=0, i_R=0,
i_D=rx_ctl_idelay, i_D=rx_ctl_idelay,
o_Q1=rx_ctl, # o_Q2=, o_Q1=rx_ctl,
) o_Q2=Signal())
] ]
for i in range(4): for i in range(4):
self.specials += [ self.specials += [
Instance( Instance("IBUF", i_I=pads.rx_data[i], o_O=rx_data_ibuf[i]),
"IBUF", i_I=pads.rx_data[i], o_O=rx_data_ibuf[i]),
Instance("IDELAYE3", Instance("IDELAYE3",
# p_DELAY_SRC="IDATAIN", p_DELAY_SRC="IDATAIN",
# p_CASCADE="NONE", p_CASCADE="NONE",
# p_DELAY_TYPE="FIXED", p_DELAY_TYPE="FIXED",
# p_DELAY_VALUE=0, p_DELAY_VALUE=0,
# p_UPDATE_MODE='ASYNC", p_UPDATE_MODE="ASYNC",
p_DELAY_FORMAT="COUNT", p_DELAY_FORMAT="COUNT",
i_CASC_IN=0, i_CASC_IN=0,
i_CASC_RETURN=0, i_CASC_RETURN=0,
@ -119,7 +119,7 @@ class LiteEthPHYRGMIIRX(Module):
i_R=0, i_R=0,
i_D=rx_data_idelay[i], i_D=rx_data_idelay[i],
o_Q1=rx_data[i], o_Q1=rx_data[i],
o_Q2=rx_data[i + 4], ) o_Q2=rx_data[i + 4])
] ]
rx_ctl_d = Signal() rx_ctl_d = Signal()
@ -144,9 +144,12 @@ class LiteEthPHYRGMIICRG(Module, AutoCSR):
# RX # RX
eth_rx_clk_ibuf = Signal() eth_rx_clk_ibuf = Signal()
self.specials += [ self.specials += [
Instance( Instance("IBUF",
"IBUF", i_I=clock_pads.rx, o_O=eth_rx_clk_ibuf), Instance( i_I=clock_pads.rx,
"BUFG", i_I=eth_rx_clk_ibuf, o_O=self.cd_eth_rx.clk) o_O=eth_rx_clk_ibuf),
Instance("BUFG",
i_I=eth_rx_clk_ibuf,
o_O=self.cd_eth_rx.clk)
] ]
# TX # TX
@ -156,8 +159,7 @@ class LiteEthPHYRGMIICRG(Module, AutoCSR):
pll_clk_tx90 = Signal() pll_clk_tx90 = Signal()
eth_tx_clk_obuf = Signal() eth_tx_clk_obuf = Signal()
self.specials += [ self.specials += [
Instance( Instance("PLLE2_BASE",
"PLLE2_BASE",
p_STARTUP_WAIT="FALSE", p_STARTUP_WAIT="FALSE",
o_LOCKED=pll_locked, o_LOCKED=pll_locked,
@ -179,19 +181,15 @@ class LiteEthPHYRGMIICRG(Module, AutoCSR):
p_CLKOUT1_DIVIDE=8, p_CLKOUT1_DIVIDE=8,
p_CLKOUT1_PHASE=90.0, p_CLKOUT1_PHASE=90.0,
o_CLKOUT1=pll_clk_tx90), o_CLKOUT1=pll_clk_tx90),
Instance( Instance("BUFG", i_I=pll_clk_tx, o_O=self.cd_eth_tx.clk),
"BUFG", i_I=pll_clk_tx, o_O=self.cd_eth_tx.clk), Instance("BUFG", i_I=pll_clk_tx90, o_O=self.cd_eth_tx90.clk),
Instance( Instance("ODDRE1",
"BUFG", i_I=pll_clk_tx90, o_O=self.cd_eth_tx90.clk),
Instance(
"ODDRE1",
i_C=ClockSignal("eth_tx90"), i_C=ClockSignal("eth_tx90"),
i_SR=0, i_SR=0,
i_D1=1, i_D1=1,
i_D2=0, i_D2=0,
o_Q=eth_tx_clk_obuf), o_Q=eth_tx_clk_obuf),
Instance( Instance("OBUF", i_I=eth_tx_clk_obuf, o_O=clock_pads.tx)
"OBUF", i_I=eth_tx_clk_obuf, o_O=clock_pads.tx)
] ]
# Reset # Reset