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litex-boards/litex_boards/platforms/sitlinv_stlv7325_v2.py

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#
# This file is part of LiteX-Boards.
#
# Copyright (c) 2023 Gabriel Somlo <gsomlo@gmail.com>
# Copyright (c) 2022 Andrew Gillham <gillham@roadsign.com>
# 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 = {"2.5V": "25", "3.3V": "33"}[voltage]
_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("LVCMOS" + VCCIO)),
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("LVCMOS" + VCCIO)),
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("LVCMOS" + VCCIO)),
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="3.3V"):
assert vccio in ["2.5V", "3.3V"]
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 %s [current_design]
set_property BITSTREAM.GENERAL.COMPRESS TRUE [current_design]
""" % vccio.replace("V", ""))
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]")
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