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litex-boards/litex_boards/community/platforms/ac701.py

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init repo with litex official boards
2019-06-10 11:09:51 -04:00
# This file is Copyright (c) 2019 Vamsi K Vytla <vamsi.vytla@gmail.com>
# License: BSD
from litex.build.generic_platform import *
from litex.build.xilinx import XilinxPlatform, VivadoProgrammer
# IOs ----------------------------------------------------------------------------------------------
_io = [
("user_led", 0, Pins("M26"), IOStandard("LVCMOS33")),
("user_led", 1, Pins("T24"), IOStandard("LVCMOS33")),
("user_led", 2, Pins("T25"), IOStandard("LVCMOS33")),
("user_led", 3, Pins("R26"), IOStandard("LVCMOS33")),
("cpu_reset", 0, Pins("U4"), IOStandard("SSTL15")),
("clk200", 0,
Subsignal("p", Pins("R3"), IOStandard("DIFF_SSTL15")),
Subsignal("n", Pins("P3"), IOStandard("DIFF_SSTL15"))
),
("clk156", 0,
Subsignal("p", Pins("M21"), IOStandard("LVDS_25")),
Subsignal("n", Pins("M22"), IOStandard("LVDS_25"))
),
("serial", 0,
Subsignal("cts", Pins("V19")),
Subsignal("rts", Pins("W19")),
Subsignal("tx", Pins("U19")),
Subsignal("rx", Pins("T19")),
IOStandard("LVCMOS18")
),
("eth_clocks", 0,
Subsignal("tx", Pins("U22")),
Subsignal("rx", Pins("U21")),
IOStandard("LVCMOS18")
),
("eth", 0,
Subsignal("rx_ctl", Pins("U14")),
Subsignal("rx_data", Pins("U17 V17 V16 V14")),
Subsignal("tx_ctl", Pins("T15")),
Subsignal("tx_data", Pins("U16 U15 T18 T17")),
Subsignal("rst_n", Pins("V18")),
Subsignal("mdc", Pins("W18")),
Subsignal("mdio", Pins("T14")),
IOStandard("LVCMOS18"), Misc("SLEW=FAST"), Drive(16)
),
("ddram", 0,
Subsignal("a", Pins(
"M4 J3 J1 L4 K5 M7 K1 M6",
"H1 K3 N7 L5 L7 N6 L3 K2"),
IOStandard("SSTL15")),
Subsignal("ba", Pins("N1 M1 H2"), IOStandard("SSTL15")),
Subsignal("ras_n", Pins("P1"), IOStandard("SSTL15")),
Subsignal("cas_n", Pins("T4"), IOStandard("SSTL15")),
Subsignal("we_n", Pins("R1"), IOStandard("SSTL15")),
Subsignal("cs_n", Pins("T3"), IOStandard("SSTL15")),
Subsignal("dm", Pins("AC6 AC4 AA3 U7 G1 F3 G5 H9"),
IOStandard("SSTL15")),
Subsignal("dq", Pins(
"AB6 AA8 Y8 AB5 AA5 Y5 Y6 Y7",
"AF4 AF5 AF3 AE3 AD3 AC3 AB4 AA4",
"AC2 AB2 AF2 AE2 Y1 Y2 AC1 AB1",
"Y3 W3 W6 V6 W4 W5 W1 V1",
"G2 D1 E1 E2 F2 A2 A3 C2",
"C3 D3 A4 B4 C4 D4 D5 E5",
"F4 G4 K6 K7 K8 L8 J5 J6",
"G6 H6 F7 F8 G8 H8 D6 E6"),
IOStandard("SSTL15")),
Subsignal("dqs_p", Pins("V8 AD5 AD1 V3 C1 B5 J4 H7"),
IOStandard("DIFF_SSTL15")),
Subsignal("dqs_n", Pins("W8 AE5 AE1 V2 B1 A5 H4 G7"),
IOStandard("DIFF_SSTL15")),
Subsignal("clk_p", Pins("M2"), IOStandard("DIFF_SSTL15")),
Subsignal("clk_n", Pins("L2"), IOStandard("DIFF_SSTL15")),
Subsignal("cke", Pins("P4"), IOStandard("SSTL15")),
Subsignal("odt", Pins("R2"), IOStandard("SSTL15")),
Subsignal("reset_n", Pins("N8"), IOStandard("LVCMOS15"))
),
ac701: add pcie_x1 pins
2019-11-06 03:29:55 -05:00
("pcie_x1", 0,
Subsignal("rst_n", Pins("M20"), IOStandard("LVCMOS25")),
Subsignal("clk_p", Pins("F11")),
Subsignal("clk_n", Pins("E11")),
Subsignal("rx_p", Pins("D12")),
Subsignal("rx_n", Pins("C12")),
Subsignal("tx_p", Pins("D10")),
Subsignal("tx_n", Pins("C10"))
),
init repo with litex official boards
2019-06-10 11:09:51 -04:00
("vadj_on_b", 0, Pins("R16"), IOStandard("LVCMOS25")),
("gtp_refclk", 0,
Subsignal("p", Pins("AA13")),
Subsignal("n", Pins("AB13"))
),
("sfp", 0,
Subsignal("txp", Pins("AC10")),
Subsignal("txn", Pins("AD10")),
Subsignal("rxp", Pins("AC12")),
Subsignal("rxn", Pins("AD12")),
),
("sfp_mgt_clk_sel0", 0, Pins("B26"), IOStandard("LVCMOS25")),
("sfp_mgt_clk_sel1", 0, Pins("C24"), IOStandard("LVCMOS25")),
("sfp_tx_disable_n", 0, Pins("R18"), IOStandard("LVCMOS33")),
("sfp_rx_los", 0, Pins("R23"), IOStandard("LVCMOS33")),
]
# Connectors ---------------------------------------------------------------------------------------
_connectors = [
("HPC", {
"CLK0_M2C_N": "C19",
"CLK0_M2C_P": "D19",
"CLK1_M2C_N": "H22",
"CLK1_M2C_P": "H21",
"LA00_CC_N": "C18",
"LA00_CC_P": "D18",
"LA01_CC_N": "E18",
"LA01_CC_P": "E17",
"LA02_N": "H15",
"LA02_P": "H14",
"LA03_N": "F17",
"LA03_P": "G17",
"LA04_N": "F19",
"LA04_P": "F18",
"LA05_N": "F15",
"LA05_P": "G15",
"LA06_N": "F20",
"LA06_P": "G19",
"LA07_N": "G16",
"LA07_P": "H16",
"LA08_N": "B17",
"LA08_P": "C17",
"LA09_N": "D16",
"LA09_P": "E16",
"LA10_N": "A18",
"LA10_P": "A17",
"LA11_N": "A19",
"LA11_P": "B19",
"LA12_N": "D20",
"LA12_P": "E20",
"LA13_N": "A20",
"LA13_P": "B20",
"LA14_N": "B21",
"LA14_P": "C21",
"LA15_N": "A22",
"LA15_P": "B22",
"LA16_N": "D21",
"LA16_P": "E21",
"LA17_CC_N": "J21",
"LA17_CC_P": "K21",
"LA18_CC_N": "G21",
"LA18_CC_P": "G20",
"LA19_N": "L14",
"LA19_P": "M14",
"LA20_N": "M17",
"LA20_P": "M16",
"LA21_N": "H19",
"LA21_P": "J19",
"LA22_N": "L18",
"LA22_P": "L17",
"LA23_N": "J20",
"LA23_P": "K20",
"LA24_N": "H18",
"LA24_P": "J18",
"LA25_N": "F22",
"LA25_P": "G22",
"LA26_N": "H24",
"LA26_P": "J24",
"LA27_N": "E23",
"LA27_P": "F23",
"LA28_N": "K23",
"LA28_P": "K22",
"LA29_N": "F24",
"LA29_P": "G24",
"LA30_N": "D25",
"LA30_P": "E25",
"LA31_N": "D26",
"LA31_P": "E26",
"LA32_N": "G26",
"LA32_P": "H26",
"LA33_N": "F25",
"LA33_P": "G25",
"PRSNT_M2C_L": "N16",
"PWR_GOOD_FLASH_RST_B": "P15"}
),
("XADC", {
"GPIO0": "H17",
"GPIO1": "E22",
"GPIO2": "K18",
"GPIO3": "L19",
"VAUX0_N": "J16",
"VAUX0_P": "K15",
"VAUX8_N": "J15",
"VAUX8_P": "J14",
}
),
]
# Platform -----------------------------------------------------------------------------------------
class Platform(XilinxPlatform):
default_clk_name = "clk156"
keep up to date with LiteX - use 1e9/freq for default_clk_period - add default serial on tinyfpga_bx - use S6PLL on minispartan6 - add SPIFlash pins on versa_ecp5
2019-08-07 02:47:08 -04:00
default_clk_period = 1e9/156.5e6
init repo with litex official boards
2019-06-10 11:09:51 -04:00
def __init__(self):
XilinxPlatform.__init__(self, "xc7a200t-fbg676-2", _io, _connectors, toolchain="vivado")
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 VivadoProgrammer()
def do_finalize(self, fragment):
XilinxPlatform.do_finalize(self, fragment)
try:
self.add_period_constraint(self.lookup_request("clk200").p, 1e9/200e6)
except ConstraintError:
pass
try:
self.add_period_constraint(self.lookup_request("eth_clocks").rx, 1e9/125e6)
except ConstraintError:
pass
try:
self.add_period_constraint(self.lookup_request("eth_clocks").tx, 1e9/125e6)
except ConstraintError:
pass