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alinx_axau15: First review/cleanup pass and fix missing INTERNAL_VREF on bank 66.

This commit is contained in:
Florent Kermarrec 2023-12-28 19:48:27 +01:00
parent b340d9e5e7
commit e229d1a0b6
2 changed files with 53 additions and 50 deletions
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69
litex_boards/platforms/alinx_axau15.py
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@ -10,42 +10,43 @@ from litex.build.xilinx import XilinxUSPPlatform, VivadoProgrammer
# IOs ---------------------------------------------------------------------------------------------- # IOs ----------------------------------------------------------------------------------------------
_io = [ _io = [
# Clk / Rst # Clk / Rst.
("sys_clk200", 0, ("clk200", 0,
Subsignal("p", Pins("T24"), IOStandard("LVDS")), Subsignal("p", Pins("T24"), IOStandard("LVDS")),
Subsignal("n", Pins("U24"), IOStandard("LVDS")) Subsignal("n", Pins("U24"), IOStandard("LVDS"))
), ),
("gth_clk156", 0, ("clk156", 0,
Subsignal("p", Pins("T7"), IOStandard("LVDS")), Subsignal("p", Pins("T7"), IOStandard("LVDS")),
Subsignal("n", Pins("T6"), IOStandard("LVDS")) Subsignal("n", Pins("T6"), IOStandard("LVDS"))
), ),
# Buttons # Buttons.
("user_btn_1", 0, Pins("N26"), IOStandard("LVCMOS33")), ("user_btn", 0, Pins("N26"), IOStandard("LVCMOS33")),
("user_btn_2", 0, Pins("AA23"), IOStandard("LVCMOS33")), ("user_btn", 1, Pins("AA23"), IOStandard("LVCMOS33")),
# Leds # Leds.
("user_led", 0, Pins("W21"), IOStandard("LVCMOS18")), ("user_led", 0, Pins("W21"), IOStandard("LVCMOS18")),
("user_led", 1, Pins("AC16"), IOStandard("LVCMOS18")), ("user_led", 1, Pins("AC16"), IOStandard("LVCMOS18")),
# Serial # Serial.
("serial", 0, ("serial", 0,
Subsignal("tx", Pins("A13")), Subsignal("tx", Pins("A13")),
Subsignal("rx", Pins("A12")), Subsignal("rx", Pins("A12")),
IOStandard("LVCMOS33") IOStandard("LVCMOS33")
), ),
# SDCard.
("sdcard", 0, ("sdcard", 0,
Subsignal("data", Pins(f"Y22 Y23 W20 W19"), Misc("PULLUP True")), Subsignal("data", Pins("Y22 Y23 W20 W19"), Misc("PULLUP True")),
Subsignal("cmd", Pins(f"AA24"), Misc("PULLUP True")), Subsignal("cmd", Pins("AA24"), Misc("PULLUP True")),
Subsignal("clk", Pins(f"AA25")), Subsignal("clk", Pins("AA25")),
Subsignal("cd", Pins(f"Y25")), Subsignal("cd", Pins("Y25")),
Misc("SLEW=FAST"), Misc("SLEW=FAST"),
IOStandard("LVCMOS18"), IOStandard("LVCMOS18"),
), ),
# DDR4 SDRAM MT40A512M16 # DDR4 SDRAM MT40A512M16.
("ddram", 0, ("ddram", 0,
Subsignal("a", Pins( Subsignal("a", Pins(
"G25 M26 L25 E26 M25 F22 H26 F24", "G25 M26 L25 E26 M25 F22 H26 F24",
@ -83,6 +84,7 @@ _io = [
Misc("SLEW=FAST"), Misc("SLEW=FAST"),
), ),
# SPIFlash.
("spiflash4x", 0, ("spiflash4x", 0,
Subsignal("cs_n", Pins("AA12")), Subsignal("cs_n", Pins("AA12")),
Subsignal("clk", Pins("Y11")), Subsignal("clk", Pins("Y11")),
@ -90,7 +92,7 @@ _io = [
IOStandard("LVCMOS18") IOStandard("LVCMOS18")
), ),
# RGMII Ethernet # RGMII Ethernet.
("eth_clocks", 0, ("eth_clocks", 0,
Subsignal("tx", Pins("AE16")), Subsignal("tx", Pins("AE16")),
Subsignal("rx", Pins("AD21")), Subsignal("rx", Pins("AD21")),
@ -107,7 +109,7 @@ _io = [
Subsignal("tx_data", Pins("Y18 AA18 AB24 AC24"), IOStandard("LVCMOS18")), Subsignal("tx_data", Pins("Y18 AA18 AB24 AC24"), IOStandard("LVCMOS18")),
), ),
# PCIe # PCIe.
("pcie_x1", 0, ("pcie_x1", 0,
Subsignal("rst_n", Pins("T19"), IOStandard("LVCMOS18")), Subsignal("rst_n", Pins("T19"), IOStandard("LVCMOS18")),
Subsignal("clk_p", Pins("AB7")), Subsignal("clk_p", Pins("AB7")),
@ -243,23 +245,23 @@ _connectors = [
"LA32_N" : "AD26", "LA32_N" : "AD26",
} }
), ),
# ("XADC", { ("XADC", {
# "GPIO0" : "AB25", "GPIO0" : "AB25",
# "GPIO1" : "AA25", "GPIO1" : "AA25",
# "GPIO2" : "AB28", "GPIO2" : "AB28",
# "GPIO3" : "AA27", "GPIO3" : "AA27",
# "VAUX0_N" : "J24", "VAUX0_N" : "J24",
# "VAUX0_P" : "J23", "VAUX0_P" : "J23",
# "VAUX8_N" : "L23", "VAUX8_N" : "L23",
# "VAUX8_P" : "L22", "VAUX8_P" : "L22",
# } }
# ), ),
] ]
# Platform ----------------------------------------------------------------------------------------- # Platform -----------------------------------------------------------------------------------------
class Platform(XilinxUSPPlatform): class Platform(XilinxUSPPlatform):
default_clk_name = "sys_clk200" default_clk_name = "clk200"
default_clk_period = 1e9/200e6 default_clk_period = 1e9/200e6
def __init__(self, toolchain="vivado"): def __init__(self, toolchain="vivado"):
@ -270,5 +272,6 @@ class Platform(XilinxUSPPlatform):
def do_finalize(self, fragment): def do_finalize(self, fragment):
XilinxUSPPlatform.do_finalize(self, fragment) XilinxUSPPlatform.do_finalize(self, fragment)
self.add_period_constraint(self.lookup_request("sys_clk200", loose=True), 1e9/200e6) self.add_period_constraint(self.lookup_request("clk200", loose=True), 1e9/200e6)
#self.add_platform_command("set_property INTERNAL_VREF 0.84 [get_iobanks 64]") self.add_period_constraint(self.lookup_request("clk156", loose=True), 1e9/156e6)
self.add_platform_command("set_property INTERNAL_VREF 0.84 [get_iobanks 66]")

34
litex_boards/targets/alinx_axau15.py
View File

@ -9,7 +9,6 @@
import os import os
from migen import * from migen import *
from migen.genlib.resetsync import AsyncResetSynchronizer
from litex.gen import * from litex.gen import *
@ -29,16 +28,17 @@ from litepcie.software import generate_litepcie_software
# CRG ---------------------------------------------------------------------------------------------- # CRG ----------------------------------------------------------------------------------------------
class _CRG(LiteXModule): class _CRG(LiteXModule):
def __init__(self, platform, sys_clk_freq, with_video_pll=False): def __init__(self, platform, sys_clk_freq):
self.rst = Signal() self.rst = Signal()
self.cd_sys = ClockDomain() self.cd_sys = ClockDomain()
self.cd_sys4x = ClockDomain() self.cd_sys4x = ClockDomain()
self.cd_idelay = ClockDomain() self.cd_idelay = ClockDomain()
# Clk.
clk200 = platform.request("sys_clk200")
# # # # # #
# Clk.
clk200 = platform.request("clk200")
# PLL. # PLL.
self.pll = pll = USMMCM(speedgrade=-2) self.pll = pll = USMMCM(speedgrade=-2)
self.comb += pll.reset.eq(self.rst) self.comb += pll.reset.eq(self.rst)
@ -52,11 +52,11 @@ class _CRG(LiteXModule):
class BaseSoC(SoCCore): class BaseSoC(SoCCore):
def __init__(self, sys_clk_freq=int(125e6), def __init__(self, sys_clk_freq=int(125e6),
with_ethernet = False, with_ethernet = False,
with_etherbone = False, with_etherbone = False,
eth_ip = "192.168.1.50", eth_ip = "192.168.1.50",
with_led_chaser = True, with_led_chaser = True,
with_pcie = True, with_pcie = True,
**kwargs): **kwargs):
platform = alinx_axau15.Platform() platform = alinx_axau15.Platform()
@ -88,8 +88,8 @@ class BaseSoC(SoCCore):
bar0_size = 0x20000) bar0_size = 0x20000)
self.add_pcie(phy=self.pcie_phy, ndmas=1) self.add_pcie(phy=self.pcie_phy, ndmas=1)
# TODO: add SFP+ cages for ethernet
# Ethernet / Etherbone --------------------------------------------------------------------- # Ethernet / Etherbone ---------------------------------------------------------------------
# TODO: add SFP+ cages for ethernet
# if with_ethernet or with_etherbone: # if with_ethernet or with_etherbone:
# self.ethphy = KU_1000BASEX(self.crg.cd_eth.clk, # self.ethphy = KU_1000BASEX(self.crg.cd_eth.clk,
# data_pads = self.platform.request("sfp", 0), # data_pads = self.platform.request("sfp", 0),
@ -125,11 +125,11 @@ def main():
#assert not (args.with_etherbone and args.eth_dynamic_ip) #assert not (args.with_etherbone and args.eth_dynamic_ip)
soc = BaseSoC( soc = BaseSoC(
sys_clk_freq = args.sys_clk_freq, sys_clk_freq = args.sys_clk_freq,
#with_ethernet = args.with_ethernet, #with_ethernet = args.with_ethernet,
#with_etherbone = args.with_etherbone, #with_etherbone = args.with_etherbone,
#eth_ip = args.eth_ip, #eth_ip = args.eth_ip,
#eth_dynamic_ip = args.eth_dynamic_ip, #eth_dynamic_ip = args.eth_dynamic_ip,
**parser.soc_argdict **parser.soc_argdict
) )