# # This file is part of LiteX-Boards. # # Copyright (c) 2021 Florent Kermarrec # Copyright (c) 2022 Lukas F. Hartmann, MNT Research GmbH # SPDX-License-Identifier: BSD-2-Clause from litex.build.generic_platform import * from litex.build.xilinx import Xilinx7SeriesPlatform from litex.build.openocd import OpenOCD # IOs ---------------------------------------------------------------------------------------------- _io = [ # Clk / Rst. ("clk100", 0, Pins("AA10"), IOStandard("LVCMOS15")), # Serial. ("serial", 0, Subsignal("tx", Pins("D15")), Subsignal("rx", Pins("C18")), IOStandard("LVCMOS33") ), ("serial", 1, Subsignal("tx", Pins("H16")), Subsignal("rx", Pins("G16")), IOStandard("LVCMOS33") ), ("debug_serial", 0, Subsignal("tx", Pins("C17")), Subsignal("rx", Pins("C16")), IOStandard("LVCMOS33") ), # SPIFlash ("spiflash4x", 0, # clock needs to be accessed through STARTUPE2 Subsignal("cs_n", Pins("C23")), Subsignal("dq", Pins("B24 A25 B22 A22")), IOStandard("LVCMOS33") ), # SDCard. ("spisdcard", 0, Subsignal("clk", Pins("C11")), Subsignal("mosi", Pins("A15"), Misc("PULLUP True")), Subsignal("cs_n", Pins("B15"), Misc("PULLUP True")), Subsignal("miso", Pins("A14"), Misc("PULLUP True")), Misc("SLEW=FAST"), IOStandard("LVCMOS18"), ), ("sdcard", 0, Subsignal("data", Pins("A14 B10 A12 B15"), Misc("PULLUP True")), Subsignal("cmd", Pins("A15"), Misc("PULLUP True")), Subsignal("clk", Pins("C11")), Subsignal("cd", Pins("A10")), Misc("SLEW=FAST"), IOStandard("LVCMOS18"), ), # RGMII Ethernet ("eth_refclk", 0, Pins("F17"), IOStandard("LVCMOS33")), # CHECKME: Drive it? ("eth_clocks", 0, Subsignal("tx", Pins("E18")), Subsignal("rx", Pins("D18")), IOStandard("LVCMOS33") ), ("eth", 0, Subsignal("rst_n", Pins("G17"), IOStandard("LVCMOS33")), Subsignal("int_n", Pins("E16"), IOStandard("LVCMOS33")), Subsignal("mdio", Pins("E15"), IOStandard("LVCMOS33")), Subsignal("mdc", Pins("E17"), IOStandard("LVCMOS33")), Subsignal("rx_ctl", Pins("F15"), IOStandard("LVCMOS33")), Subsignal("rx_data", Pins("J15 J16 F20 D20"), IOStandard("LVCMOS33")), Subsignal("tx_ctl", Pins("D19"), IOStandard("LVCMOS33")), Subsignal("tx_data", Pins("H18 H17 G19 F18"), IOStandard("LVCMOS33")), ), # I2C ("i2c", 0, Subsignal("scl", Pins("Y26")), Subsignal("sda", Pins("W26")), IOStandard("LVCMOS18"), ), ("i2c", 1, Subsignal("scl", Pins("G12")), Subsignal("sda", Pins("A13")), IOStandard("LVCMOS18"), ), ("i2c", 2, Subsignal("scl", Pins("H26")), Subsignal("sda", Pins("G26")), IOStandard("LVCMOS33"), ), # GPIO ("resets", 0, Pins("M21 M22 C13 C14"), # Backlight PWM, Backlight EN, hdmi_rst_n, edp_reset_n IOStandard("LVCMOS18") ), ("gpio", 0, Pins("D13 N19 M19"), # USB hub reset, Analogix reset, eDP HPD IOStandard("LVCMOS18") ), # DDR3 SDRAM. ("ddram", 0, Subsignal("a", Pins( "AC8 AA9 AA7 AD9 Y8 AA8 W11 Y10", "Y11 Y7 AC11 V11 AB11 V7 V9 V8"), IOStandard("SSTL15")), Subsignal("ba", Pins("AC7 AB7 AB9"), IOStandard("SSTL15")), Subsignal("ras_n", Pins("AF7"), IOStandard("SSTL15")), Subsignal("cas_n", Pins("AE7"), IOStandard("SSTL15")), Subsignal("we_n", Pins("AC9"), IOStandard("SSTL15")), Subsignal("cs_n", Pins("AD8"), IOStandard("SSTL15")), Subsignal("dm", Pins( "U6 Y3 AB6 AD4"), IOStandard("SSTL15")), Subsignal("dq", Pins( " V4 W3 U5 U2 U7 U1 V6 V3", " Y2 Y1 AA3 V2 AC2 W1 AB2 V1", "AA4 AB4 AC4 AC3 AC6 Y6 Y5 AD6", "AD1 AE1 AE3 AE2 AE6 AE5 AF3 AF2" ), IOStandard("SSTL15_T_DCI")), Subsignal("dqs_p", Pins("W6 AB1 AA5 AF5"), IOStandard("DIFF_SSTL15")), Subsignal("dqs_n", Pins("W5 AC1 AB5 AF4"), IOStandard("DIFF_SSTL15")), Subsignal("clk_p", Pins("W10"), IOStandard("DIFF_SSTL15")), Subsignal("clk_n", Pins("W9"), IOStandard("DIFF_SSTL15")), Subsignal("cke", Pins("AB12"), IOStandard("SSTL15")), Subsignal("odt", Pins("AC12"), IOStandard("SSTL15")), Subsignal("reset_n", Pins("AA2"), IOStandard("LVCMOS15")), Misc("SLEW=FAST"), Misc("VCCAUX_IO=HIGH") ), # HDMI (DISP1) ("hdmi", 0, Subsignal("clk", Pins("C12")), Subsignal("de", Pins("D10")), Subsignal("hsync_n", Pins("D11")), Subsignal("vsync_n", Pins("E11")), Subsignal("b", Pins("H13 G10 J13 H12 J10 H8 H9 J11")), # [16:23] Subsignal("g", Pins("F14 C9 G14 F10 H14 G11 H11 G9")), # [8:15] Subsignal("r", Pins("E10 D8 F9 F8 A9 A8 B9 D9")), # [0:7] IOStandard("LVCMOS18") ), # RGB->eDP (DISP2) ("edp", 0, Subsignal("clk", Pins("AC18")), Subsignal("de", Pins("AA15")), Subsignal("hsync", Pins("AB15")), # hsync_n for negative Subsignal("vsync", Pins("AB16")), # vsync_n for negative Subsignal("r", Pins("AF14 AF15 AE15 AE16 AF17 AE17 AA14 AF18")), # [16:23] Subsignal("g", Pins("AD15 AE18 AD16 AF19 AC16 AD14 AC17 AC14")), # [8:15] Subsignal("b", Pins("AB14 Y15 AA17 AA18 Y16 AF20 AD20 AB17")), # [0:7] IOStandard("LVCMOS18"), Misc("DRIVE=4"), ), ("edpoff", 0, Pins("AD18"), IOStandard("LVCMOS18") ), # Backlight via Motherboard (unused) ("backlight", 0, Subsignal("pwm", Pins("K16")), Subsignal("en", Pins("B16")), IOStandard("LVCMOS33") ), # USB ("usb", 0, Subsignal("dp", Pins("D26")), Subsignal("dm", Pins("C26")), IOStandard("LVCMOS33"), ), ("usb_pull", 0, Pins("F25"), IOStandard("LVCMOS33") ), ] # Connectors --------------------------------------------------------------------------------------- _connectors = [] # Platform ----------------------------------------------------------------------------------------- class Platform(Xilinx7SeriesPlatform): default_clk_name = "clk100" default_clk_period = 1e9/100e6 def __init__(self, toolchain="vivado"): Xilinx7SeriesPlatform.__init__(self, "xc7k325t-ffg676-2", _io, _connectors, toolchain=toolchain) # Enable bitstream compression, quad SPI and 50MHz rate for quick boot from SPI flash # see https://github.com/timvideos/litex-buildenv/issues/79 self.toolchain.bitstream_commands = [ "set_property BITSTREAM.GENERAL.COMPRESS True [current_design]", "set_property BITSTREAM.CONFIG.SPI_BUSWIDTH 4 [current_design]", "set_property BITSTREAM.CONFIG.CONFIGRATE 50 [current_design]" ] def create_programmer(self): return OpenOCD("openocd_xc7_ft2232.cfg", "bscan_spi_xc7a325t.bit") def do_finalize(self, fragment): Xilinx7SeriesPlatform.do_finalize(self, fragment) self.add_period_constraint(self.lookup_request("clk100", loose=True), 1e9/100e6) self.add_platform_command("set_property INTERNAL_VREF 0.750 [get_iobanks 33]") self.add_platform_command("set_property INTERNAL_VREF 0.750 [get_iobanks 34]")