# # This file is part of LiteX-Boards. # # Copyright (c) 2021 Greg Davill # Copyright (c) 2021 Florent Kermarrec # SPDX-License-Identifier: BSD-2-Clause from litex.build.generic_platform import * from litex.build.lattice import LatticePlatform from litex.build.lattice.programmer import OpenOCDJTAGProgrammer # IOs ---------------------------------------------------------------------------------------------- _io_r1_0 = [ # Clk ("clk30", 0, Pins("B12"), IOStandard("LVCMOS33")), # Leds ("user_led", 0, Pins("C13"), IOStandard("LVCMOS33")), ("user_led", 1, Pins("D12"), IOStandard("LVCMOS33")), ("user_led", 2, Pins(" U2"), IOStandard("LVCMOS33")), ("user_led", 3, Pins(" T3"), IOStandard("LVCMOS33")), ("user_led", 4, Pins("D13"), IOStandard("LVCMOS33")), ("user_led", 5, Pins("E13"), IOStandard("LVCMOS33")), ("user_led", 6, Pins("C16"), IOStandard("LVCMOS33")), ("user_led_color", 0, Pins("T1 R1 U1"), IOStandard("LVCMOS33")), # Buttons ("user_btn", 0, Pins("U16"), IOStandard("SSTL135_I")), ("user_btn", 1, Pins("T17"), IOStandard("SSTL135_I")), # SPIFlash ("spiflash4x", 0, Subsignal("cs_n", Pins("R2")), #Subsignal("clk", Pins("U3")), Subsignal("dq", Pins("W2 V2 Y2 W1")), IOStandard("LVCMOS33") ), # SDCard ("spisdcard", 0, Subsignal("clk", Pins(f"B15")), Subsignal("mosi", Pins(f"A13"), Misc("PULLMODE=UP")), Subsignal("cs_n", Pins(f"A14"), Misc("PULLMODE=UP")), Subsignal("miso", Pins(f"C12"), Misc("PULLMODE=UP")), Misc("SLEWRATE=FAST"), IOStandard("LVCMOS33"), ), ("sdcard", 0, Subsignal("data", Pins("C12 A12 D14 A14"), Misc("PULLMODE=UP")), Subsignal("cmd", Pins("A13"), Misc("PULLMODE=UP")), Subsignal("clk", Pins("B13")), Subsignal("cd", Pins("B15"), Misc("PULLMODE=UP")), Misc("SLEWRATE=FAST"), IOStandard("LVCMOS33"), ), # DDR3 SDRAM ("ddram", 0, Subsignal("a", Pins( "G16 E19 E20 F16 F19 E16 F17 L20 " "M20 E18 G18 D18 H18 C18 D17 G20 "), IOStandard("SSTL135_I")), Subsignal("ba", Pins("H16 F20 H20"), IOStandard("SSTL135_I")), Subsignal("ras_n", Pins("K18"), IOStandard("SSTL135_I")), Subsignal("cas_n", Pins("J17"), IOStandard("SSTL135_I")), Subsignal("we_n", Pins("G19"), IOStandard("SSTL135_I")), Subsignal("cs_n", Pins("J20 J16"), IOStandard("SSTL135_I")), Subsignal("dm", Pins("U20 L18"), IOStandard("SSTL135_I")), Subsignal("dq", Pins( "U19 T18 U18 R20 P18 P19 P20 N20", "L19 L17 L16 R16 N18 R17 N17 P17"), IOStandard("SSTL135_I"), Misc("TERMINATION=75")), Subsignal("dqs_p", Pins("T19 N16"), IOStandard("SSTL135D_I"), Misc("TERMINATION=OFF"), Misc("DIFFRESISTOR=100")), Subsignal("clk_p", Pins("C20 J19"), IOStandard("SSTL135D_I")), Subsignal("cke", Pins("F18 J18"), IOStandard("SSTL135_I")), Subsignal("odt", Pins("K20 H17"), IOStandard("SSTL135_I")), Subsignal("reset_n", Pins("E17"), IOStandard("SSTL135_I")), Misc("SLEWRATE=FAST") ), ("vccio_ctrl", 0, Subsignal("pdm", Pins("V1 E11 T2")), Subsignal("en", Pins("E12")) ), # RGMII Ethernet ("eth_clocks", 0, Subsignal("tx", Pins("E15")), Subsignal("rx", Pins("D11")), IOStandard("LVCMOS33"), Misc("SLEWRATE=FAST"), ), ("eth", 0, Subsignal("rst_n", Pins("B20")), Subsignal("mdio", Pins("D16")), Subsignal("mdc", Pins("A19")), Subsignal("rx_data", Pins("A16 C17 B17 A17")), Subsignal("tx_ctl", Pins("D15")), Subsignal("rx_ctl", Pins("B18")), Subsignal("tx_data", Pins("C15 B16 A18 B19")), IOStandard("LVCMOS33"), Misc("SLEWRATE=FAST") ), ("ulpi", 0, Subsignal("data", Pins("B9 C6 A7 E9 A8 D9 C10 C7")), Subsignal("clk", Pins("B6")), Subsignal("dir", Pins("A6")), Subsignal("nxt", Pins("B8")), Subsignal("stp", Pins("C8")), Subsignal("rst", Pins("C9")), IOStandard("LVCMOS18"),Misc("SLEWRATE=FAST") ), ] # Connectors --------------------------------------------------------------------------------------- _connectors_r1_0 = [ ("SYZYGY0", { # single ended "S0": "G2", "S1": "J3", "S2": "F1", "S3": "K3", "S4": "J4", "S5": "K2", "S6": "J5", "S7": "J1", "S8": "N2", "S9": "L3", "S10":"M1", "S11":"L2", "S12":"N3", "S13":"N4", "S14":"M3", "S15":"P5", "S16":"H1", "S17":"K5", "S18":"K4", "S19":"K1", "S20":"L4", "S21":"L1", "S22":"L5", "S23":"M4", "S24":"N1", "S25":"N5", "S26":"P3", "S27":"P4", "S28":"H2", "S29":"P1", "S30":"G1", "S31":"P2", } ), ("SYZYGY1", { # single ended "S0": "E4", "S1": "A4", "S2": "D5", "S3": "A5", "S4": "C4", "S5": "B2", "S6": "B4", "S7": "C2", "S8": "A2", "S9": "C1", "S10":"B1", "S11":"D1", "S12":"F4", "S13":"D2", "S14":"E3", "S15":"E1", "S16":"B5", "S17":"E5", "S18":"F5", "S19":"C5", "S20":"B3", "S21":"A3", "S22":"D3", "S23":"C3", "S24":"H5", "S25":"G5", "S26":"H3", "S27":"H4", "S28":"G3", "S29":"F2", "S30":"F3", "S31":"E2", } ), ("SYZYGY2", { # single ended "S0": "C11", "S1": "B11", "S2": "D6", "S3": "D7", "S4": "E6", "S5": "E7", "S6": "D8", "S7": "E8", "S8": "E10", "S9": "D10", "S10":"A9", "S11":"A10", "S12":"B10", "S13":"A11" } ), ] # SYZYGY ------------------------------------------------------------------------------------------- def raw_syzygy_io(syzygy, iostandard="LVCMOS33"): return [(syzygy, 0, Pins(" ".join([f"{syzygy}:S{i:d}" for i in range(32)])), IOStandard(iostandard))] # Platform ----------------------------------------------------------------------------------------- class Platform(LatticePlatform): default_clk_name = "clk30" default_clk_period = 1e9/30e6 def __init__(self, revision="1.0", device="85F", toolchain="trellis", **kwargs): assert revision in ["1.0"] self.revision = revision io = {"1.0": _io_r1_0}[revision] connectors = {"1.0": _connectors_r1_0}[revision] LatticePlatform.__init__(self, f"LFE5UM5G-{device}-8BG381C", io, connectors, toolchain=toolchain, **kwargs) def create_programmer(self): return OpenOCDJTAGProgrammer("openocd_butterstick.cfg") def do_finalize(self, fragment): LatticePlatform.do_finalize(self, fragment) self.add_period_constraint(self.lookup_request("clk30", loose=True), 1e9/30e6)