From 1185ff51f1dbcb2ccb667d77e54d1e4625c2e56c Mon Sep 17 00:00:00 2001 From: Gabriel Somlo Date: Mon, 3 Apr 2023 18:12:26 -0400 Subject: [PATCH] Initial support for STLV7325 (v2) Kintex-7 board. This is the 2nd (2023) version of the board sold through https://www.aliexpress.us/item/3256801088848039.html Signed-off-by: Gabriel Somlo --- litex_boards/platforms/sitlinv_stlv7325_v2.py | 510 ++++++++++++++++++ litex_boards/targets/sitlinv_stlv7325_v2.py | 220 ++++++++ 2 files changed, 730 insertions(+) create mode 100644 litex_boards/platforms/sitlinv_stlv7325_v2.py create mode 100755 litex_boards/targets/sitlinv_stlv7325_v2.py diff --git a/litex_boards/platforms/sitlinv_stlv7325_v2.py b/litex_boards/platforms/sitlinv_stlv7325_v2.py new file mode 100644 index 0000000..f5b3f54 --- /dev/null +++ b/litex_boards/platforms/sitlinv_stlv7325_v2.py @@ -0,0 +1,510 @@ +# +# This file is part of LiteX-Boards. +# +# Copyright (c) 2023 Gabriel Somlo +# Copyright (c) 2022 Andrew Gillham +# SPDX-License-Identifier: BSD-2-Clause + +from litex.build.generic_platform import * +from litex.build.xilinx import Xilinx7SeriesPlatform +from litex.build.openocd import OpenOCD + +# This board is available here: +# https://www.aliexpress.com/item/1005001275162791.html + +# IOs ---------------------------------------------------------------------------------------------- + +def _get_io(voltage="2.5V"): + assert voltage in ["2.5V", "3.3V"] + VCCIO = str(25 if voltage == "2.5V" else 33) + _io = [ + # Clk / Rst + ("cpu_reset_n", 0, Pins("AC16"), IOStandard("LVCMOS15")), + + ("clk50", 0, Pins("F17"), IOStandard("LVCMOS" + VCCIO)), + ("clk200", 0, + Subsignal("p", Pins("AB11"), IOStandard("DIFF_SSTL15")), + Subsignal("n", Pins("AC11"), IOStandard("DIFF_SSTL15")) + ), + ("clk156", 0, # TODO verify / test (in docs) + Subsignal("p", Pins("D6"), IOStandard("LVDS")), + Subsignal("n", Pins("D5"), IOStandard("LVDS")), + ), + ("clk150", 0, # TODO verify / test (in docs) + Subsignal("p", Pins("F6"), IOStandard("LVDS")), + Subsignal("n", Pins("F5"), IOStandard("LVDS")), + ), + + # Leds + ("user_led_n", 0, Pins("AA2"), IOStandard("LVCMOS15")), + ("user_led_n", 1, Pins("AD5"), IOStandard("LVCMOS15")), + ("user_led_n", 2, Pins("W10"), IOStandard("LVCMOS15")), + ("user_led_n", 3, Pins("Y10"), IOStandard("LVCMOS15")), + ("user_led_n", 4, Pins("AE10"), IOStandard("LVCMOS15")), + ("user_led_n", 5, Pins("W11"), IOStandard("LVCMOS15")), + ("user_led_n", 6, Pins("V11"), IOStandard("LVCMOS15")), + ("user_led_n", 7, Pins("Y12"), IOStandard("LVCMOS15")), + + # Buttons + ("user_btn_n", 0, Pins("AC16"), IOStandard("LVCMOS15")), + ("user_btn_n", 0, Pins("C24"), IOStandard("LVCMOS33")), # J4 jumper 2.5V or 3.3V + + # I2C / AT24C04 + ("i2c", 0, + Subsignal("scl", Pins("U26")), + Subsignal("sda", Pins("V26")), + IOStandard("LVCMOS" + VCCIO) + ), + + # Serial + ("serial", 0, + Subsignal("tx", Pins("L23")), # CP2102_TX + Subsignal("rx", Pins("K21")), # CP2102_RX + IOStandard("LVCMOS" + VCCIO) + ), + + # DDR3 SDRAM + ("ddram", 0, + Subsignal("a", Pins( + "AB7 AD11 AA8 AF10 AC7 AE11 AC8 AD8", + "AC13 AF12 AF9 AD10 AE13 AF7 AB12 AC12"), + IOStandard("SSTL15")), + Subsignal("ba", Pins("AE8 AA7 AF13"), IOStandard("SSTL15")), + Subsignal("ras_n", Pins("Y7"), IOStandard("SSTL15")), + Subsignal("cas_n", Pins("AE7"), IOStandard("SSTL15")), + Subsignal("we_n", Pins("AF8"), IOStandard("SSTL15")), + Subsignal("cs_n", Pins("AA13"), IOStandard("SSTL15")), + Subsignal("dm", Pins( + "AD16 AB16 AB19 V17 U1 AA3 AD6 AE1"), + IOStandard("SSTL15")), + Subsignal("dq", Pins( + "AF17 AE17 AF15 AF14 AE15 AD15 AF20 AF19", + "AA15 AA14 AC14 AD14 AB14 AB15 AA18 AA17", + "AC18 AD18 AC17 AB17 AA20 AA19 AD19 AC19", + " W14 V14 V19 V18 V16 W15 W16 Y17", + " V4 U6 U5 U2 V3 W3 U7 V6", + " Y3 Y2 V2 V1 W1 Y1 AB2 AC2", + " AA4 AB4 AC4 AC3 AC6 AB6 Y6 Y5", + " AD4 AD1 AF2 AE2 AE6 AE5 AF3 AE3"), + IOStandard("SSTL15_T_DCI")), + Subsignal("dqs_p", Pins("AE18 Y15 AD20 W18 W6 AB1 AA5 AF5"), + IOStandard("DIFF_SSTL15_T_DCI")), + Subsignal("dqs_n", Pins("AF18 Y16 AE20 W19 W5 AC1 AB5 AF4"), + IOStandard("DIFF_SSTL15_T_DCI")), + Subsignal("clk_p", Pins("AC9"), + IOStandard("DIFF_SSTL15"), Misc("IO_BUFFER_TYPE=NONE")), + Subsignal("clk_n", Pins("AD9"), + IOStandard("DIFF_SSTL15"), Misc("IO_BUFFER_TYPE=NONE")), + Subsignal("cke", Pins("AB10"), IOStandard("SSTL15")), + Subsignal("odt", Pins("AA12"), IOStandard("SSTL15")), + Subsignal("reset_n", Pins("AB20"), IOStandard("LVCMOS15")), + Misc("SLEW=FAST"), + Misc("VCCAUX_IO=NORMAL") + ), + # 2 Rank Signals: + # Subsignal("cs_n", Pins("AD13"), IOStandard("SSTL15")), + # Subsignal("clk_p", Pins("AA9"), IOStandard("DIFF_SSTL15")), + # Subsignal("clk_n", Pins("AB9"), IOStandard("DIFF_SSTL15")), + # Subsignal("cke", Pins("AA10"), IOStandard("SSTL15")), + # Subsignal("odt", Pins("Y13"), IOStandard("SSTL15")), + + ## TODO verify / test + # # SPIFlash + # ("spiflash", 0, + # Subsignal("cs_n", Pins("C23")), + # Subsignal("clk", Pins("C8")), + # Subsignal("dq", Pins("B24 A25 B22 A22")), + # IOStandard("LVCMOS25") + # ), + + # Sata + ("sata", 0, + Subsignal("rx_p", Pins("R4")), + Subsignal("rx_n", Pins("R3")), + Subsignal("tx_p", Pins("P2")), + Subsignal("tx_n", Pins("P1")), + ), + ("sata", 1, + Subsignal("rx_p", Pins("N4")), + Subsignal("rx_n", Pins("N3")), + Subsignal("tx_p", Pins("M2")), + Subsignal("tx_n", Pins("M1")), + ), + + # SDCard + ("spisdcard", 0, + Subsignal("clk", Pins("V22")), + Subsignal("cs_n", Pins("W23")), + Subsignal("mosi", Pins("W24"), Misc("PULLUP True")), + Subsignal("miso", Pins("U22"), Misc("PULLUP True")), + Misc("SLEW=FAST"), + IOStandard("LVCMOS" + VCCIO) + ), + ("sdcard", 0, + Subsignal("clk", Pins("V22")), + Subsignal("cmd", Pins("W24"), Misc("PULLUP True")), + Subsignal("data", Pins("U22 V21 W21 W23"), Misc("PULLUP True")), + Misc("SLEW=FAST"), + IOStandard("LVCMOS" + VCCIO) + ), + + # RGMII Ethernet + ("eth_clocks", 0, + Subsignal("tx", Pins("D11"), IOStandard("LVCMOS25")), + Subsignal("rx", Pins("C12"), IOStandard("LVCMOS25")) + ), + ("eth_clocks", 1, + Subsignal("tx", Pins("B11"), IOStandard("LVCMOS25")), + Subsignal("rx", Pins("E10"), IOStandard("LVCMOS25")) + ), + ("eth", 0, + Subsignal("rst_n", Pins("J8")), + Subsignal("mdio", Pins("H11")), + Subsignal("mdc", Pins("F9")), + Subsignal("rx_ctl", Pins("F8")), + Subsignal("rx_data", Pins("D8 D9 C9 D10")), + Subsignal("tx_ctl", Pins("C14")), + Subsignal("tx_data", Pins("E12 D13 C13 D14")), + IOStandard("LVCMOS25") + ), + ("eth", 1, + Subsignal("rst_n", Pins("B14")), + Subsignal("mdio", Pins("B15")), + Subsignal("mdc", Pins("A15")), + Subsignal("rx_ctl", Pins("A8")), + Subsignal("rx_data", Pins("B9 A9 B10 A10")), + Subsignal("tx_ctl", Pins("A14")), + Subsignal("tx_data", Pins("B12 A12 A13 C11")), + IOStandard("LVCMOS25") + ), + + # HDMI out + ("hdmi_out", 0, + Subsignal("clk_p", Pins("F14"), IOStandard("TMDS_33" if VCCIO == "33" else "LVDS_25")), + Subsignal("clk_n", Pins("F13"), IOStandard("TMDS_33" if VCCIO == "33" else "LVDS_25")), + Subsignal("data0_p", Pins("G12"), IOStandard("TMDS_33" if VCCIO == "33" else "LVDS_25")), + Subsignal("data0_n", Pins("F12"), IOStandard("TMDS_33" if VCCIO == "33" else "LVDS_25")), + Subsignal("data1_p", Pins("G10"), IOStandard("TMDS_33" if VCCIO == "33" else "LVDS_25")), + Subsignal("data1_n", Pins("G9"), IOStandard("TMDS_33" if VCCIO == "33" else "LVDS_25")), + Subsignal("data2_p", Pins("H9"), IOStandard("TMDS_33" if VCCIO == "33" else "LVDS_25")), + Subsignal("data2_n", Pins("H8"), IOStandard("TMDS_33" if VCCIO == "33" else "LVDS_25")), + ), + + # HDMI in + ("hdmi_in", 0, + Subsignal("clk_p", Pins("G11"), IOStandard("TMDS_33" if VCCIO == "33" else "LVDS_25")), + Subsignal("clk_n", Pins("F10"), IOStandard("TMDS_33" if VCCIO == "33" else "LVDS_25")), + Subsignal("data0_p", Pins("J13"), IOStandard("TMDS_33" if VCCIO == "33" else "LVDS_25")), + Subsignal("data0_n", Pins("H13"), IOStandard("TMDS_33" if VCCIO == "33" else "LVDS_25")), + Subsignal("data1_p", Pins("J11"), IOStandard("TMDS_33" if VCCIO == "33" else "LVDS_25")), + Subsignal("data1_n", Pins("J10"), IOStandard("TMDS_33" if VCCIO == "33" else "LVDS_25")), + Subsignal("data2_p", Pins("H14"), IOStandard("TMDS_33" if VCCIO == "33" else "LVDS_25")), + Subsignal("data2_n", Pins("G14"), IOStandard("TMDS_33" if VCCIO == "33" else "LVDS_25")), + Subsignal("scl", Pins("U21"), IOStandard("LVCMOS" + VCCIO)), + Subsignal("sda", Pins("Y20"), IOStandard("LVCMOS" + VCCIO)), + ), + + # PCIe + ("pcie_x1", 0, + Subsignal("rst_n", Pins("E17"), IOStandard("LVCMOS15")), + Subsignal("clk_p", Pins("H6")), + Subsignal("clk_n", Pins("H5")), + Subsignal("rx_p", Pins("B6")), + Subsignal("rx_n", Pins("B5")), + Subsignal("tx_p", Pins("A4")), + Subsignal("tx_n", Pins("A3")) + ), + ("pcie_x2", 0, + Subsignal("rst_n", Pins("E17"), IOStandard("LVCMOS15")), + Subsignal("clk_p", Pins("H6")), + Subsignal("clk_n", Pins("H5")), + Subsignal("rx_p", Pins("B6 C4")), + Subsignal("rx_n", Pins("B5 C3")), + Subsignal("tx_p", Pins("A4 B2")), + Subsignal("tx_n", Pins("A3 B1")) + ), + ("pcie_x4", 0, + Subsignal("rst_n", Pins("E17"), IOStandard("LVCMOS15")), + Subsignal("clk_p", Pins("H6")), + Subsignal("clk_n", Pins("H5")), + Subsignal("rx_p", Pins("B6 C4 E4 G4")), + Subsignal("rx_n", Pins("B5 C3 E3 G3")), + Subsignal("tx_p", Pins("A4 B2 D2 F2")), + Subsignal("tx_n", Pins("A3 B1 D1 F1")) + ), + + # TODO find / test + # # SGMII Clk + # ("sgmii_clock", 0, + # Subsignal("p", Pins("")), + # Subsignal("n", Pins("")) + # ), + + # SFP + ("sfp_a", 0, # SFP A + Subsignal("txp", Pins("H2")), + Subsignal("txn", Pins("H1")), + Subsignal("rxp", Pins("J4")), + Subsignal("rxn", Pins("J3")), + Subsignal("sda", Pins("B21")), + Subsignal("scl", Pins("C21")), + ), + ("sfp_a_tx", 0, # SFP A + Subsignal("p", Pins("H2")), + Subsignal("n", Pins("H1")) + ), + ("sfp_a_rx", 0, # SFP A + Subsignal("p", Pins("J4")), + Subsignal("n", Pins("J3")) + ), + ("sfp_b", 0, # SFP B + Subsignal("txp", Pins("K2")), + Subsignal("txn", Pins("K1")), + Subsignal("rxp", Pins("L4")), + Subsignal("rxn", Pins("L3")), + Subsignal("sda", Pins("D21")), + Subsignal("scl", Pins("C22")), + ), + ("sfp_b_tx", 0, # SFP B + Subsignal("p", Pins("K2")), + Subsignal("n", Pins("K1")) + ), + ("sfp_b_rx", 0, # SFP B + Subsignal("p", Pins("L4")), + Subsignal("n", Pins("L3")) + ), + + # SI5338 (optional part per seller?) + ("si5338_i2c", 0, + Subsignal("sck", Pins("U26"), IOStandard("LVCMOS" + VCCIO)), + Subsignal("sda", Pins("V26"), IOStandard("LVCMOS" + VCCIO)) + ), + ("si5338_clkin", 0, # CLK2A/B + Subsignal("p", Pins("K6"), IOStandard("LVDS_25")), + Subsignal("n", Pins("K5"), IOStandard("LVDS_25")) + ), + ] + + return _io + +# Connectors --------------------------------------------------------------------------------------- + + #GLS FIXME +_connectors = [ + ("LPC", { + # Row C + "DP0_C2M_P" : "", # not connected + "DP0_C2M_N" : "", # not connected + "DP0_M2C_P" : "", # not connected + "DP0_M2C_N" : "", # not connected + "LA06_P" : "AE23", + "LA06_N" : "AF23", + "LA10_P" : "AD26", + "LA10_N" : "AE26", + "LA14_P" : "Y25", + "LA14_N" : "Y26", + "LA18_CC_P" : "P23", + "LA18_CC_N" : "N23", + "LA27_P" : "R26", + "LA27_N" : "P26", + + # Row D + "GBTCLK0_M2C_P" : "", # not connected + "GBTCLK0_M2C_N" : "", # not connected + "LA01_CC_P" : "AA23", + "LA01_CC_N" : "AB24", + "LA05_P" : "AF24", + "LA05_N" : "AF25", + "LA09_P" : "AB22", + "LA09_N" : "AC22", + "LA13_P" : "AB26", + "LA13_N" : "AC26", + "LA17_CC_P" : "R22", + "LA17_CC_N" : "R23", + "LA23_P" : "T24", + "LA23_N" : "T25", + "LA26_P" : "U17", + "LA26_N" : "T17", + + # Row G + "CLK1_M2C_P" : "Y23", + "CLK1_M2C_N" : "AA24", + "LA00_CC_P" : "Y22", + "LA00_CC_N" : "AA22", + "LA03_P" : "U24", + "LA03_N" : "U25", + "LA08_P" : "AE22", + "LA08_N" : "AF22", + "LA12_P" : "W25", + "LA12_N" : "W26", + "LA16_P" : "AA25", + "LA16_N" : "AB25", + "LA20_P" : "P24", + "LA20_N" : "N24", + "LA22_P" : "M21", + "LA22_N" : "M22", + "LA25_P" : "M25", + "LA25_N" : "L25", + "LA29_P" : "R16", + "LA29_N" : "R17", + "LA31_P" : "P16", + "LA31_N" : "N17", + "LA33_P" : "T22", + "LA33_N" : "T23", + + # Row H + "CLK0_M2C_P" : "AC23", + "CLK0_M2C_N" : "AC24", + "LA02_P" : "V23", + "LA02_N" : "V24", + "LA04_P" : "AD21", + "LA04_N" : "AE21", + "LA07_P" : "AB21", + "LA07_N" : "AC21", + "LA11_P" : "AD23", + "LA11_N" : "AD24", + "LA15_P" : "AD25", + "LA15_N" : "AE25", + "LA19_P" : "R25", + "LA19_N" : "P25", + "LA21_P" : "U19", + "LA21_N" : "U20", + "LA24_P" : "T18", + "LA24_N" : "T19", + "LA28_P" : "R18", + "LA28_N" : "P18", + "LA30_P" : "M19", + "LA30_N" : "V22", + "LA32_P" : "T20", + "LA32_N" : "R20", + } + ), + ("BTB-A", { + 10: "P19", # P + 11: "P20", # N + + 13: "N21", # P + 14: "N22", # N + 15: "K23", # P + 16: "J23", # N + + 18: "M24", # P + 19: "L24", # N + 20: "J24", # P + 21: "J25", # N + + 23: "H21", # P + 24: "G21", # N + 25: "E21", # P + 26: "E22", # N + + 28: "G22", # P + 29: "F23", # N + 30: "E25", # P + 31: "D25", # N + + 33: "D23", # P + 34: "D24", # N + 35: "F22", # P + 36: "E23", # N + }), + ("BTB-B", { + 5: "W20", # P + 6: "Y21", # N + + 8: "N19", # P + 9: "M20", # N + 10: "N26", # P + 11: "M26", # N + + 13: "L22", # P + 14: "K22", # N + 15: "K25", # P + 16: "K26", # N + + 18: "J21", # P + 19: "H22", # N + 20: "J26", # P + 21: "H26", # N + + 23: "G25", # P + 24: "G26", # N + 25: "F25", # P + 26: "E26", # N + + 28: "D26", # P + 29: "C26", # N + 30: "A23", # P + 31: "A24", # N + + 33: "B20", # P + 34: "A20", # N + 35: "B26", + + 38: "K15", + 39: "M16", + }), + ("AB", { + # N P + 1: "J20", 2: "K20", + 3: "G20", 4: "H19", + 5: "L20", 6: "L19", + 9: "E20", 10: "F19", + 11: "H18", 12: "H17", + 13: "F18", 14: "G17", + 15: "G16", 16: "H16", + 19: "F24", 20: "G24", + 21: "F20", 22: "G19", + 23: "L18", 24: "M17", + 25: "H24", 26: "H23", + }), + ("C", { + 2: "D19", # P + 3: "D20", # N + 7: "D18", # N + 8: "E18", # P + 10: "E16", # N + 11: "E15", # P + }), + ("DE", { + 1: "J18", 2: "J19", # P N + 3: "L17", 4: "K18", # P N + 5: "K16", 6: "K17", # P N + 9: "C19", 10: "B19", # P N + 11: "C18", 12: "C17", # N P + 13: "C16", 14: "B16", # P N + 15: "D15", 16: "D16", # P N + 19: "G15", 20: "F15", # P N + 21: "J15", 22: "J16", # P N + 23: "A18", 24: "A19", # P N + 25: "B17", 26: "A17", # P N + }), +] +# Platform ----------------------------------------------------------------------------------------- + +class Platform(Xilinx7SeriesPlatform): + default_clk_name = "clk200" + default_clk_period = 1e9/200e6 + + def __init__(self, vccio="2.5V"): + Xilinx7SeriesPlatform.__init__(self, "xc7k325t-ffg676-2", _get_io(vccio), _connectors, toolchain="vivado") + self.add_platform_command(""" +set_property CFGBVS VCCO [current_design] +set_property CONFIG_VOLTAGE 2.5 [current_design] +set_property BITSTREAM.GENERAL.COMPRESS TRUE [current_design] +""") + self.toolchain.bitstream_commands = ["set_property BITSTREAM.CONFIG.SPI_BUSWIDTH 4 [current_design]"] + self.toolchain.additional_commands = ["write_cfgmem -force -format bin -interface spix4 -size 16 -loadbit \"up 0x0 {build_name}.bit\" -file {build_name}.bin"] + + def create_programmer(self): + return OpenOCD("openocd_xc7_ft4232.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_period_constraint(self.lookup_request("clk200", loose=True), 1e9/200e6) + self.add_period_constraint(self.lookup_request("eth_clocks:rx", 0, loose=True), 1e9/125e6) + self.add_period_constraint(self.lookup_request("eth_clocks:tx", 0, loose=True), 1e9/125e6) + self.add_period_constraint(self.lookup_request("eth_clocks:rx", 1, loose=True), 1e9/125e6) + self.add_period_constraint(self.lookup_request("eth_clocks:tx", 1, loose=True), 1e9/125e6) + self.add_platform_command("set_property DCI_CASCADE {{32 34}} [get_iobanks 33]") diff --git a/litex_boards/targets/sitlinv_stlv7325_v2.py b/litex_boards/targets/sitlinv_stlv7325_v2.py new file mode 100755 index 0000000..a872c46 --- /dev/null +++ b/litex_boards/targets/sitlinv_stlv7325_v2.py @@ -0,0 +1,220 @@ +#!/usr/bin/env python3 + +# +# This file is part of LiteX-Boards. +# +# Copyright (c) 2023 Gabriel Somlo +# Copyright (c) 2022 Andrew Gillham +# Copyright (c) 2014-2015 Sebastien Bourdeauducq +# Copyright (c) 2014-2020 Florent Kermarrec +# Copyright (c) 2014-2015 Yann Sionneau +# SPDX-License-Identifier: BSD-2-Clause + +import os + +from migen import * + +from litex.gen import * + +from litex_boards.platforms import sitlinv_stlv7325_v2 + +from litex.soc.cores.clock import * +from litex.soc.integration.soc_core import * +from litex.soc.integration.builder import * +from litex.soc.cores.led import LedChaser +from litex.soc.cores.bitbang import I2CMaster +from litex.soc.cores.video import VideoS7HDMIPHY + +from litedram.modules import MT8JTF12864 +from litedram.phy import s7ddrphy + +from liteeth.phy.s7rgmii import LiteEthPHYRGMII + +from litepcie.phy.s7pciephy import S7PCIEPHY +from litepcie.software import generate_litepcie_software + +# CRG ---------------------------------------------------------------------------------------------- + +class _CRG(LiteXModule): + def __init__(self, platform, sys_clk_freq): + self.rst = Signal() + self.cd_sys = ClockDomain() + self.cd_sys4x = ClockDomain() + self.cd_idelay = ClockDomain() + self.cd_hdmi = ClockDomain() + self.cd_hdmi5x = ClockDomain() + + # # # + + # Clk/Rst. + clk200 = platform.request("clk200") + clk50 = platform.request("clk50") + rst_n = platform.request("cpu_reset_n") + + # PLL. + self.pll = pll = S7PLL(speedgrade=-2) + self.comb += pll.reset.eq(~rst_n | self.rst) + pll.register_clkin(clk200, 200e6) + pll.create_clkout(self.cd_sys, sys_clk_freq) + pll.create_clkout(self.cd_sys4x, 4*sys_clk_freq) + pll.create_clkout(self.cd_idelay, 200e6) + platform.add_false_path_constraints(self.cd_sys.clk, pll.clkin) # Ignore sys_clk to pll.clkin path created by SoC's rst. + + self.submodules.pll2 = pll2 = S7PLL(speedgrade=-2) + self.comb += pll2.reset.eq(~rst_n | self.rst) + pll2.register_clkin(clk50, 50e6) + pll2.create_clkout(self.cd_hdmi, 25e6, margin=0) + pll2.create_clkout(self.cd_hdmi5x, 125e6, margin=0) + + self.idelayctrl = S7IDELAYCTRL(self.cd_idelay) + +# BaseSoC ------------------------------------------------------------------------------------------ + +class BaseSoC(SoCCore): + def __init__(self, sys_clk_freq=100e6, + vccio = "2.5V", + with_ethernet = False, + with_led_chaser = True, + with_pcie = False, + with_sata = False, sata_gen="gen2", + with_jtagbone = False, + with_video_colorbars = False, + with_video_framebuffer = False, + with_video_terminal = False, + **kwargs): + platform = sitlinv_stlv7325_v2.Platform(vccio) + + # CRG -------------------------------------------------------------------------------------- + self.crg = _CRG(platform, sys_clk_freq) + + # SoCCore ---------------------------------------------------------------------------------- + SoCCore.__init__(self, platform, sys_clk_freq, ident="LiteX SoC on Sitlinv STLV7325-v2", **kwargs) + + # DDR3 SDRAM ------------------------------------------------------------------------------- + if not self.integrated_main_ram_size: + self.ddrphy = s7ddrphy.K7DDRPHY(platform.request("ddram"), + memtype = "DDR3", + nphases = 4, + sys_clk_freq = sys_clk_freq, + ) + self.add_sdram("sdram", + phy = self.ddrphy, + module = MT8JTF12864(sys_clk_freq, "1:4"), + l2_cache_size = kwargs.get("l2_size", 8192), + ) + + # Jtagbone --------------------------------------------------------------------------------- + if with_jtagbone: + self.add_jtagbone() + + # Ethernet / Etherbone --------------------------------------------------------------------- + if with_ethernet: + self.ethphy = LiteEthPHYRGMII( + clock_pads = self.platform.request("eth_clocks", 0), + pads = self.platform.request("eth", 0), + tx_delay = 1.48-9, + rx_delay = 1.48-9, + ) + self.add_ethernet(phy=self.ethphy) + + # PCIe ------------------------------------------------------------------------------------- + if with_pcie: + self.pcie_phy = S7PCIEPHY(platform, platform.request("pcie_x4"), + data_width = 128, + bar0_size = 0x20000) + self.add_pcie(phy=self.pcie_phy, ndmas=1) + + # TODO verify / test + # SATA ------------------------------------------------------------------------------------- + if with_sata: + from litex.build.generic_platform import Subsignal, Pins + from litesata.phy import LiteSATAPHY + + # RefClk, Generate 150MHz from PLL. + self.cd_sata_refclk = ClockDomain() + self.crg.pll.create_clkout(self.cd_sata_refclk, 150e6) + sata_refclk = ClockSignal("sata_refclk") + platform.add_platform_command("set_property SEVERITY {{Warning}} [get_drc_checks REQP-52]") + + # PHY + self.sata_phy = LiteSATAPHY(platform.device, + refclk = sata_refclk, + pads = platform.request("sata", 0), + gen = sata_gen, + clk_freq = sys_clk_freq, + data_width = 16) + + # Core + self.add_sata(phy=self.sata_phy, mode="read+write") + + # HDMI Options ----------------------------------------------------------------------------- + if (with_video_colorbars or with_video_framebuffer or with_video_terminal): + self.submodules.videophy = VideoS7HDMIPHY(platform.request("hdmi_out"), clock_domain="hdmi") + if with_video_colorbars: + self.add_video_colorbars(phy=self.videophy, timings="640x480@60Hz", clock_domain="hdmi") + if with_video_terminal: + self.add_video_terminal(phy=self.videophy, timings="640x480@60Hz", clock_domain="hdmi") + if with_video_framebuffer: + self.add_video_framebuffer(phy=self.videophy, timings="640x480@60Hz", clock_domain="hdmi") + + # Leds ------------------------------------------------------------------------------------- + if with_led_chaser: + self.leds = LedChaser( + pads = platform.request_all("user_led_n"), + sys_clk_freq = sys_clk_freq) + + # I2C -------------------------------------------------------------------------------------- + self.i2c = I2CMaster(platform.request("i2c")) + +# Build -------------------------------------------------------------------------------------------- + +def main(): + from litex.build.parser import LiteXArgumentParser + parser = LiteXArgumentParser(platform=sitlinv_stlv7325_v2.Platform, description="LiteX SoC on AliExpress STLV7325-v2.") + parser.add_target_argument("--sys-clk-freq", default=100e6, type=float, help="System clock frequency.") + parser.add_target_argument("--vccio", default="2.5V", type=str, help="IO Voltage (set by J4), can be 2.5V or 3.3V") + parser.add_target_argument("--with-pcie", action="store_true", help="Enable PCIe support.") + parser.add_target_argument("--driver", action="store_true", help="Generate PCIe driver.") + parser.add_target_argument("--with-ethernet", action="store_true", help="Enable Ethernet support.") + parser.add_target_argument("--with-sata", action="store_true", help="Enable SATA support.") + parser.add_target_argument("--sata-gen", default="2", help="SATA Gen..", choices=["1", "2", "3"]) + parser.add_target_argument("--with-jtagbone", action="store_true", help="Enable Jtagbone support.") + sdopts = parser.target_group.add_mutually_exclusive_group() + sdopts.add_argument("--with-spi-sdcard", action="store_true", help="Enable SPI-mode SDCard support.") + sdopts.add_argument("--with-sdcard", action="store_true", help="Enable SDCard support.") + viopts = parser.target_group.add_mutually_exclusive_group() + viopts.add_argument("--with-video-terminal", action="store_true", help="Enable Video Terminal (HDMI).") + viopts.add_argument("--with-video-framebuffer", action="store_true", help="Enable Video Framebuffer (HDMI).") + viopts.add_argument("--with-video-colorbars", action="store_true", help="Enable Video Colorbars (HDMI).") + args = parser.parse_args() + + soc = BaseSoC( + sys_clk_freq = args.sys_clk_freq, + vccio = args.vccio, + with_ethernet = args.with_ethernet, + with_pcie = args.with_pcie, + with_sata = args.with_sata, + sata_gen = "gen" + args.sata_gen, + with_jtagbone = args.with_jtagbone, + with_video_colorbars = args.with_video_colorbars, + with_video_framebuffer = args.with_video_framebuffer, + with_video_terminal = args.with_video_terminal, + **parser.soc_argdict + ) + if args.with_spi_sdcard: + soc.add_spi_sdcard() + if args.with_sdcard: + soc.add_sdcard() + builder = Builder(soc, **parser.builder_argdict) + if args.build: + builder.build(**parser.toolchain_argdict) + + if args.driver: + generate_litepcie_software(soc, os.path.join(builder.output_dir, "driver")) + + if args.load: + prog = soc.platform.create_programmer() + prog.load_bitstream(builder.get_bitstream_filename(mode="sram")) + +if __name__ == "__main__": + main()