gadgetfactory_papilio_pro: Cosmetic cleanups.
This commit is contained in:
Florent Kermarrec
parent
ec4d203eb6
commit
b9874685a5
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@ -1,18 +1,29 @@
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#
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# This file is part of LiteX-Boards.
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#
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# Copyright (c) 2023 Fabien Caura <fabien@acathla.tk>
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# SPDX-License-Identifier: BSD-2-Clause
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from litex.build.generic_platform import *
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from litex.build.xilinx import XilinxSpartan6Platform
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from litex.build.xilinx.programmer import XC3SProg
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# IOs ----------------------------------------------------------------------------------------------
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_io = [
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("user_led", 0, Pins("P112"), IOStandard("LVCMOS33"), Drive(24), Misc("SLEW=QUIETIO")),
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# Clk / Rst.
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("clk32", 0, Pins("P94"), IOStandard("LVCMOS33")),
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# Leds.
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("user_led", 0, Pins("P112"), IOStandard("LVCMOS33"), Drive(24), Misc("SLEW=QUIETIO")),
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# Serial.
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("serial", 1,
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Subsignal("tx", Pins("P105"), IOStandard("LVCMOS33"), Misc("SLEW=SLOW")),
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Subsignal("rx", Pins("P101"), IOStandard("LVCMOS33"), Misc("PULLUP"))
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),
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# SPIFlash
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("spiflash", 0,
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Subsignal("cs_n", Pins("P38")),
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Subsignal("clk", Pins("P70")),
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@ -27,22 +38,30 @@ _io = [
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IOStandard("LVCMOS33"), Misc("SLEW=FAST")
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),
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# SDR SDRAM.
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("sdram_clock", 0, Pins("P32"), IOStandard("LVCMOS33"), Misc("SLEW=FAST")),
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("sdram", 0,
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Subsignal("a", Pins("P140 P139 P138 P137 P46 P45 P44",
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"P43 P41 P40 P141 P35 P34")),
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Subsignal("a", Pins(
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"P140 P139 P138 P137 P46 P45 P44",
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"P43 P41 P40 P141 P35 P34"
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)),
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Subsignal("ba", Pins("P143 P142")),
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Subsignal("cs_n", Pins("P1")),
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Subsignal("cke", Pins("P33")),
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Subsignal("ras_n", Pins("P2")),
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Subsignal("cas_n", Pins("P5")),
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Subsignal("we_n", Pins("P6")),
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Subsignal("dq", Pins("P9 P10 P11 P12 P14 P15 P16 P8 P21 P22 P23 P24 P26 P27 P29 P30")),
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Subsignal("dq", Pins(
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"P9 P10 P11 P12 P14 P15 P16 P8",
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"P21 P22 P23 P24 P26 P27 P29 P30"
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)),
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Subsignal("dm", Pins("P7 P17")),
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IOStandard("LVCMOS33"), Misc("SLEW=FAST")
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)
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]
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# Connectors ---------------------------------------------------------------------------------------
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_connectors = [
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# 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
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("A", "P48 P51 P56 P58 P61 P66 P67 P75 P79 P81 P83 P85 P88 P93 P98 P100"),
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@ -55,7 +74,7 @@ _connectors = [
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# Arcade MegaWing V1.3 pinout
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_arcade_megawing = [
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# VGA
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# VGA.
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("vga", 0,
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Subsignal("r", Pins("C:4 C:5 C:6 C:7")),
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Subsignal("g", Pins("B:4 B:5 B:6 B:7")),
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@ -64,7 +83,8 @@ _arcade_megawing = [
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Subsignal("hsync_n", Pins("C:3")),
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IOStandard("LVCMOS33")
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),
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# Buttons
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# Buttons.
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("buttons", 0,
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Subsignal("up", Pins("C:8")),
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Subsignal("down", Pins("C:10")),
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@ -72,7 +92,8 @@ _arcade_megawing = [
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Subsignal("right", Pins("C:13")),
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IOStandard("LVCMOS33")
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),
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# Joysticks ports
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# Joysticks ports.
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("joy", 0,
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Subsignal("up", Pins("C:8")),
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Subsignal("down", Pins("C:10")),
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@ -91,7 +112,8 @@ _arcade_megawing = [
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Subsignal("fire2", Pins("A:3")),
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IOStandard("LVCMOS33")
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),
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# ps2 port
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# PS2 ports.
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("ps2", 0,
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Subsignal("clk", Pins("C:1")),
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Subsignal("data", Pins("C:0")),
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@ -102,22 +124,29 @@ _arcade_megawing = [
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Subsignal("data", Pins("A:12")),
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IOStandard("LVCMOS33")
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),
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# LEDs
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# Leds.
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("amw_user_led", 0, Pins("A:7"), IOStandard("LVCMOS33")),
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("amw_user_led", 1, Pins("A:6"), IOStandard("LVCMOS33")),
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("amw_user_led", 2, Pins("A:5"), IOStandard("LVCMOS33")),
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("amw_user_led", 3, Pins("A:4"), IOStandard("LVCMOS33")),
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# Reset button
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# Reset button.
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("reset_button", 0, Pins("P85"), IOStandard("LVCMOS33") )
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]
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# Platform -----------------------------------------------------------------------------------------
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class Platform(XilinxSpartan6Platform):
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default_clk_name = "clk32"
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default_clk_period = 31.25
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default_clk_period = 1e9/32e6
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def __init__(self, toolchain="ise"):
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XilinxSpartan6Platform.__init__(self, "xc6slx9-tqg144-2", _io, _connectors, toolchain=toolchain)
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def create_programmer(self):
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return XC3SProg("papilio", "bscan_spi_lx9_papilio.bit")
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def do_finalize(self, fragment):
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XilinxSpartan6Platform.do_finalize(self, fragment)
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self.add_period_constraint(self.lookup_request("clk32", loose=True), 1e9/32e6)
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@ -25,6 +25,8 @@ from litex.soc.cores.led import LedChaser
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from litedram.modules import MT48LC4M16
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from litedram.phy import s6ddrphy, GENSDRPHY, HalfRateGENSDRPHY
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# CRG ----------------------------------------------------------------------------------------------
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class _CRG(LiteXModule):
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def __init__(self, platform, sys_clk_freq, sdram_rate="1:1"):
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self.rst = Signal()
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@ -58,7 +60,7 @@ class _CRG(LiteXModule):
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sdram_clk = ClockSignal("sys2x_ps" if sdram_rate == "1:2" else "sys_ps")
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self.specials += DDROutput(1, 0, platform.request("sdram_clock"), sdram_clk)
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### BaseSoC
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# BaseSoC ------------------------------------------------------------------------------------------
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class BaseSoC(SoCCore):
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def __init__(self, sys_clk_freq=80e6,
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@ -85,23 +87,24 @@ class BaseSoC(SoCCore):
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l2_cache_size = 0
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)
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# LEDs -------------------------------------------------------------------------------------
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# Leds -------------------------------------------------------------------------------------
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if with_led_chaser:
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self.leds = LedChaser(
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pads = platform.request_all("user_led"),
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sys_clk_freq = sys_clk_freq)
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# Video Terminal
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# Video Terminal ---------------------------------------------------------------------------
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if with_video_terminal:
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self.platform.add_extension(gadgetfactory_papilio_pro._arcade_megawing)
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self.videophy = VideoVGAPHY(platform.request("vga"), clock_domain="vga")
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self.add_video_terminal(phy=self.videophy, timings="800x600@60Hz", clock_domain="vga")
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# Build --------------------------------------------------------------------------------------------
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def main():
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from litex.build.parser import LiteXArgumentParser
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parser = LiteXArgumentParser(platform=gadgetfactory_papilio_pro.Platform(),
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description="LiteX SoC on Papilio Pro")
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parser.add_argument("--sys-clk-freq", default=80e6, type=float, help="System clock frequency.")
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parser = LiteXArgumentParser(platform=gadgetfactory_papilio_pro.Platform, description="LiteX SoC on Papilio Pro.")
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parser.add_target_argument("--sys-clk-freq", default=80e6, type=float, help="System clock frequency.")
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parser.add_target_argument("--with-video-terminal", action="store_true", help="Enable Video Terminal (VGA).")
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args = parser.parse_args()
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@ -110,6 +113,7 @@ def main():
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with_video_terminal = args.with_video_terminal,
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**parser.soc_argdict
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)
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builder = Builder(soc, **parser.builder_argdict)
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if args.build:
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builder.build(**parser.toolchain_argdict)
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