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litex-boards/litex_boards/platforms/radiona_ulx3s.py

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#
# This file is part of LiteX-Boards.
#
# Copyright (c) 2018-2019 Florent Kermarrec <florent@enjoy-digital.fr>
# SPDX-License-Identifier: BSD-2-Clause
from litex.build.generic_platform import *
from litex.build.lattice import LatticeECP5Platform
from litex.build.lattice.programmer import UJProg
# IOs ----------------------------------------------------------------------------------------------
_io_common = [
# Clk / Rst
("clk25", 0, Pins("G2"), IOStandard("LVCMOS33")),
("rst", 0, Pins("R1"), IOStandard("LVCMOS33")),
# Buttons
("user_btn", 0, Pins( "D6"), IOStandard("LVCMOS33"), Misc("PULLMODE=DOWN")), # PWR
("user_btn", 1, Pins( "R1"), IOStandard("LVCMOS33"), Misc("PULLMODE=DOWN")), # F1
("user_btn", 2, Pins( "T1"), IOStandard("LVCMOS33"), Misc("PULLMODE=DOWN")), # F2
("user_btn", 3, Pins("R18"), IOStandard("LVCMOS33"), Misc("PULLMODE=DOWN")), # UP
("user_btn", 4, Pins( "V1"), IOStandard("LVCMOS33"), Misc("PULLMODE=DOWN")), # DOWN
("user_btn", 5, Pins( "U1"), IOStandard("LVCMOS33"), Misc("PULLMODE=DOWN")), # LEFT
("user_btn", 6, Pins("H16"), IOStandard("LVCMOS33"), Misc("PULLMODE=DOWN")), # RIGHT
# Leds
("user_led", 0, Pins("B2"), IOStandard("LVCMOS33")),
("user_led", 1, Pins("C2"), IOStandard("LVCMOS33")),
("user_led", 2, Pins("C1"), IOStandard("LVCMOS33")),
("user_led", 3, Pins("D2"), IOStandard("LVCMOS33")),
("user_led", 4, Pins("D1"), IOStandard("LVCMOS33")),
("user_led", 5, Pins("E2"), IOStandard("LVCMOS33")),
("user_led", 6, Pins("E1"), IOStandard("LVCMOS33")),
("user_led", 7, Pins("H3"), IOStandard("LVCMOS33")),
# Serial
("serial", 0,
Subsignal("tx", Pins("L4"), IOStandard("LVCMOS33")),
Subsignal("rx", Pins("M1"), IOStandard("LVCMOS33"))
),
# SDR SDRAM
("sdram_clock", 0, Pins("F19"), IOStandard("LVCMOS33")),
("sdram", 0,
Subsignal("a", Pins(
"M20 M19 L20 L19 K20 K19 K18 J20",
"J19 H20 N19 G20 G19")),
Subsignal("dq", Pins(
"J16 L18 M18 N18 P18 T18 T17 U20",
"E19 D20 D19 C20 E18 F18 J18 J17")),
Subsignal("we_n", Pins("T20")),
Subsignal("ras_n", Pins("R20")),
Subsignal("cas_n", Pins("T19")),
Subsignal("cs_n", Pins("P20")),
Subsignal("cke", Pins("F20")),
Subsignal("ba", Pins("P19 N20")),
Subsignal("dm", Pins("U19 E20")),
IOStandard("LVCMOS33"),
Misc("SLEWRATE=FAST"),
),
# GPIOs
("gpio", 0,
Subsignal("p", Pins("B11")),
Subsignal("n", Pins("C11")),
IOStandard("LVCMOS33")
),
("gpio", 1,
Subsignal("p", Pins("A10")),
Subsignal("n", Pins("A11")),
IOStandard("LVCMOS33")
),
("gpio", 2,
Subsignal("p", Pins("A9")),
Subsignal("n", Pins("B10")),
IOStandard("LVCMOS33")
),
("gpio", 3,
Subsignal("p", Pins("B9")),
Subsignal("n", Pins("C10")),
IOStandard("LVCMOS33")
),
# USB
("usb", 0,
Subsignal("d_p", Pins("D15")),
Subsignal("d_n", Pins("E15")),
Subsignal("pullup", Pins("B12 C12")),
IOStandard("LVCMOS33")
),
# SPIFlash
("spiflash", 0,
Subsignal("cs_n", Pins("R2")),
Subsignal("miso", Pins("V2")),
Subsignal("mosi", Pins("W2")),
Subsignal("wp", Pins("Y2")),
Subsignal("hold", Pins("W1")),
IOStandard("LVCMOS33")
),
("spiflash4x", 0,
Subsignal("cs_n", Pins("R2")),
Subsignal("dq", Pins("W2", "V2", "Y2", "W1")),
IOStandard("LVCMOS33")
),
# OLED
("oled_spi", 0,
Subsignal("clk", Pins("P4")),
Subsignal("mosi", Pins("P3")),
IOStandard("LVCMOS33"),
),
("oled_ctl", 0,
Subsignal("dc", Pins("P1")),
Subsignal("resn", Pins("P2")),
Subsignal("csn", Pins("N2")),
IOStandard("LVCMOS33"),
),
# Others
("ext0p", 0, Pins("B11"), IOStandard("LVCMOS33")),
("ext1p", 0, Pins("A10"), IOStandard("LVCMOS33")),
]
_io_1_7 = [
# SDCard
("spisdcard", 0,
Subsignal("clk", Pins("J1")),
Subsignal("mosi", Pins("J3"), Misc("PULLMODE=UP")),
Subsignal("cs_n", Pins("H1"), Misc("PULLMODE=UP")),
Subsignal("miso", Pins("K2"), Misc("PULLMODE=UP")),
Misc("SLEWRATE=FAST"),
IOStandard("LVCMOS33"),
),
("sdcard", 0,
Subsignal("clk", Pins("J1")),
Subsignal("cmd", Pins("J3"), Misc("PULLMODE=UP")),
Subsignal("data", Pins("K2 K1 H2 H1"), Misc("PULLMODE=UP")),
Misc("SLEWRATE=FAST"),
IOStandard("LVCMOS33"),
),
# GPDI
("gpdi", 0,
Subsignal("clk_p", Pins("A17"), IOStandard("LVCMOS33D"), Misc("DRIVE=4")),
#Subsignal("clk_n", Pins("B18"), IOStandard("LVCMOS33D"), Misc("DRIVE=4")),
Subsignal("data0_p", Pins("A12"), IOStandard("LVCMOS33D"), Misc("DRIVE=4")),
#Subsignal("data0_n", Pins("A13"), IOStandard("LVCMOS33D"), Misc("DRIVE=4")),
Subsignal("data1_p", Pins("A14"), IOStandard("LVCMOS33D"), Misc("DRIVE=4")),
#Subsignal("data1_n", Pins("C14"), IOStandard("LVCMOS33D"), Misc("DRIVE=4")),
Subsignal("data2_p", Pins("A16"), IOStandard("LVCMOS33D"), Misc("DRIVE=4")),
#Subsignal("data2_n", Pins("B16"), IOStandard("LVCMOS33D"), Misc("DRIVE=4")),
#Subsignal("cec", Pins("A18"), IOStandard("LVCMOS33"), Misc("PULLMODE=UP")),
#Subsignal("scl", Pins("E19"), IOStandard("LVCMOS33"), Misc("PULLMODE=UP")),
#Subsignal("sda", Pins("B19"), IOStandard("LVCMOS33"), Misc("PULLMODE=UP"))
),
# Wifi power
("wifi_gpio0", 0, Pins("L2"), IOStandard("LVCMOS33")),
]
_io_2_0 = [
# SDCard
("spisdcard", 0,
Subsignal("clk", Pins("H2")),
Subsignal("mosi", Pins("J1"), Misc("PULLMODE=UP")),
Subsignal("cs_n", Pins("K2"), Misc("PULLMODE=UP")),
Subsignal("miso", Pins("J3"), Misc("PULLMODE=UP")),
Misc("SLEWRATE=FAST"),
IOStandard("LVCMOS33"),
),
("sdcard", 0,
Subsignal("clk", Pins("H2")),
Subsignal("cmd", Pins("J1"), Misc("PULLMODE=UP")),
Subsignal("data", Pins("J3 H1 K1 K2"), Misc("PULLMODE=UP")),
#Subsignal("cd", Pins("N5")), # Not connected
#Subsignal("wp", Pins("P5")), # Not connected
Misc("SLEWRATE=FAST"),
IOStandard("LVCMOS33"),
),
# GPDI
("gpdi", 0,
Subsignal("clk_p", Pins("A17"), IOStandard("LVCMOS33D"), Misc("DRIVE=4")),
#Subsignal("clk_n", Pins("B18"), IOStandard("LVCMOS33D"), Misc("DRIVE=4")),
Subsignal("data0_p", Pins("A16"), IOStandard("LVCMOS33D"), Misc("DRIVE=4")),
#Subsignal("data0_n", Pins("B16"), IOStandard("LVCMOS33D"), Misc("DRIVE=4")),
Subsignal("data1_p", Pins("A14"), IOStandard("LVCMOS33D"), Misc("DRIVE=4")),
#Subsignal("data1_n", Pins("C14"), IOStandard("LVCMOS33D"), Misc("DRIVE=4")),
Subsignal("data2_p", Pins("A12"), IOStandard("LVCMOS33D"), Misc("DRIVE=4")),
#Subsignal("data2_n", Pins("A13"), IOStandard("LVCMOS33D"), Misc("DRIVE=4")),
#Subsignal("cec", Pins("A18"), IOStandard("LVCMOS33"), Misc("PULLMODE=UP")),
#Subsignal("scl", Pins("E19"), IOStandard("LVCMOS33"), Misc("PULLMODE=UP")),
#Subsignal("sda", Pins("B19"), IOStandard("LVCMOS33"), Misc("PULLMODE=UP"))
),
# Wifi power
("wifi_gpio0", 0, Pins("F1"), IOStandard("LVCMOS33")),
]
# Platform -----------------------------------------------------------------------------------------
class Platform(LatticeECP5Platform):
default_clk_name = "clk25"
default_clk_period = 1e9/25e6
def __init__(self, device="LFE5U-45F", revision="2.0", toolchain="trellis", **kwargs):
assert device in ["LFE5U-12F", "LFE5U-25F", "LFE5U-45F", "LFE5U-85F"]
assert revision in ["1.7", "2.0"]
_io = _io_common + {"1.7": _io_1_7, "2.0": _io_2_0}[revision]
LatticeECP5Platform.__init__(self, device + "-6BG381C", _io, toolchain=toolchain, **kwargs)
def create_programmer(self):
return UJProg()
def do_finalize(self, fragment):
LatticeECP5Platform.do_finalize(self, fragment)
self.add_period_constraint(self.lookup_request("clk25", loose=True), 1e9/25e6)
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