artiq/artiq/gateware/targets/kc705_drtio_satellite.py

199 lines
7.9 KiB
Python
Executable File

#!/usr/bin/env python3
import argparse
import os
from migen import *
from migen.build.generic_platform import *
from migen.build.xilinx.vivado import XilinxVivadoToolchain
from migen.build.xilinx.ise import XilinxISEToolchain
from misoc.cores import spi as spi_csr
from misoc.cores import gpio
from misoc.integration.builder import *
from misoc.targets.kc705 import BaseSoC, soc_kc705_args, soc_kc705_argdict
from artiq.gateware import rtio
from artiq.gateware.rtio.phy import ttl_simple
from artiq.gateware.drtio.transceiver import gtx_7series
from artiq.gateware.drtio.siphaser import SiPhaser7Series
from artiq.gateware.drtio.rx_synchronizer import XilinxRXSynchronizer
from artiq.gateware.drtio import *
from artiq.build_soc import *
# DEBUG
from microscope import *
class Satellite(BaseSoC):
mem_map = {
"drtioaux": 0x50000000,
}
mem_map.update(BaseSoC.mem_map)
def __init__(self, gateware_identifier_str=None, sma_as_sat=False, **kwargs):
BaseSoC.__init__(self,
cpu_type="or1k",
sdram_controller_type="minicon",
l2_size=128*1024,
integrated_sram_size=8192,
**kwargs)
add_identifier(self, gateware_identifier_str=gateware_identifier_str)
if isinstance(self.platform.toolchain, XilinxVivadoToolchain):
self.platform.toolchain.bitstream_commands.extend([
"set_property BITSTREAM.GENERAL.COMPRESS True [current_design]",
])
if isinstance(self.platform.toolchain, XilinxISEToolchain):
self.platform.toolchain.bitgen_opt += " -g compress"
platform = self.platform
self.comb += platform.request("sfp_tx_disable_n").eq(1)
tx_pads = [
platform.request("sfp_tx"), platform.request("user_sma_mgt_tx")
]
rx_pads = [
platform.request("sfp_rx"), platform.request("user_sma_mgt_rx")
]
if sma_as_sat:
tx_pads = tx_pads[::-1]
rx_pads = rx_pads[::-1]
# 1000BASE_BX10 Ethernet compatible, 125MHz RTIO clock
self.submodules.drtio_transceiver = gtx_7series.GTX(
clock_pads=platform.request("si5324_clkout"),
tx_pads=tx_pads,
rx_pads=rx_pads,
sys_clk_freq=self.clk_freq)
self.csr_devices.append("drtio_transceiver")
self.submodules.rtio_tsc = rtio.TSC("sync", glbl_fine_ts_width=3)
drtioaux_csr_group = []
drtioaux_memory_group = []
drtiorep_csr_group = []
self.drtio_cri = []
for i in range(len(self.drtio_transceiver.channels)):
coreaux_name = "drtioaux" + str(i)
memory_name = "drtioaux" + str(i) + "_mem"
drtioaux_csr_group.append(coreaux_name)
drtioaux_memory_group.append(memory_name)
cdr = ClockDomainsRenamer({"rtio_rx": "rtio_rx" + str(i)})
# Satellite
if i == 0:
self.submodules.rx_synchronizer = cdr(XilinxRXSynchronizer())
core = cdr(DRTIOSatellite(
self.rtio_tsc, self.drtio_transceiver.channels[0], self.rx_synchronizer))
self.submodules.drtiosat = core
self.csr_devices.append("drtiosat")
# Repeaters
else:
corerep_name = "drtiorep" + str(i-1)
drtiorep_csr_group.append(corerep_name)
core = cdr(DRTIORepeater(
self.rtio_tsc, self.drtio_transceiver.channels[i]))
setattr(self.submodules, corerep_name, core)
self.drtio_cri.append(core.cri)
self.csr_devices.append(corerep_name)
coreaux = cdr(DRTIOAuxController(core.link_layer))
setattr(self.submodules, coreaux_name, coreaux)
self.csr_devices.append(coreaux_name)
memory_address = self.mem_map["drtioaux"] + 0x800*i
self.add_wb_slave(memory_address, 0x800,
coreaux.bus)
self.add_memory_region(memory_name, memory_address | self.shadow_base, 0x800)
self.config["HAS_DRTIO"] = None
self.config["HAS_DRTIO_ROUTING"] = None
self.add_csr_group("drtioaux", drtioaux_csr_group)
self.add_memory_group("drtioaux_mem", drtioaux_memory_group)
self.add_csr_group("drtiorep", drtiorep_csr_group)
self.config["RTIO_FREQUENCY"] = str(self.drtio_transceiver.rtio_clk_freq/1e6)
# Si5324 Phaser
self.submodules.siphaser = SiPhaser7Series(
si5324_clkin=platform.request("si5324_clkin"),
rx_synchronizer=self.rx_synchronizer,
ultrascale=False,
rtio_clk_freq=self.drtio_transceiver.rtio_clk_freq)
platform.add_false_path_constraints(
self.crg.cd_sys.clk, self.siphaser.mmcm_freerun_output)
self.csr_devices.append("siphaser")
self.submodules.si5324_rst_n = gpio.GPIOOut(platform.request("si5324").rst_n)
self.csr_devices.append("si5324_rst_n")
i2c = self.platform.request("i2c")
self.submodules.i2c = gpio.GPIOTristate([i2c.scl, i2c.sda])
self.csr_devices.append("i2c")
self.config["I2C_BUS_COUNT"] = 1
self.config["HAS_SI5324"] = None
self.comb += [
platform.request("user_sma_clock_p").eq(ClockSignal("rtio_rx0")),
platform.request("user_sma_clock_n").eq(ClockSignal("rtio"))
]
rtio_clk_period = 1e9/self.drtio_transceiver.rtio_clk_freq
# Constrain TX & RX timing for the first transceiver channel
# (First channel acts as master for phase alignment for all channels' TX)
gtx0 = self.drtio_transceiver.gtxs[0]
platform.add_period_constraint(gtx0.txoutclk, rtio_clk_period)
platform.add_period_constraint(gtx0.rxoutclk, rtio_clk_period)
platform.add_false_path_constraints(
self.crg.cd_sys.clk,
gtx0.txoutclk, gtx0.rxoutclk)
# Constrain RX timing for the each transceiver channel
# (Each channel performs single-lane phase alignment for RX)
for gtx in self.drtio_transceiver.gtxs[1:]:
platform.add_period_constraint(gtx.rxoutclk, rtio_clk_period)
platform.add_false_path_constraints(
self.crg.cd_sys.clk, gtx.rxoutclk)
rtio_channels = []
for i in range(8):
phy = ttl_simple.Output(platform.request("user_led", i))
self.submodules += phy
rtio_channels.append(rtio.Channel.from_phy(phy))
for sma in "user_sma_gpio_p", "user_sma_gpio_n":
phy = ttl_simple.InOut(platform.request(sma))
self.submodules += phy
rtio_channels.append(rtio.Channel.from_phy(phy))
self.submodules.rtio_moninj = rtio.MonInj(rtio_channels)
self.csr_devices.append("rtio_moninj")
self.submodules.local_io = SyncRTIO(self.rtio_tsc, rtio_channels)
self.comb += self.drtiosat.async_errors.eq(self.local_io.async_errors)
self.submodules.cri_con = rtio.CRIInterconnectShared(
[self.drtiosat.cri],
[self.local_io.cri] + self.drtio_cri,
mode="sync", enable_routing=True)
self.csr_devices.append("cri_con")
self.submodules.routing_table = rtio.RoutingTableAccess(self.cri_con)
self.csr_devices.append("routing_table")
def main():
parser = argparse.ArgumentParser(
description="ARTIQ device binary builder / KC705 DRTIO satellite")
builder_args(parser)
soc_kc705_args(parser)
parser.set_defaults(output_dir="artiq_kc705/satellite")
parser.add_argument("--sma", default=False, action="store_true",
help="use the SMA connectors (RX: J17, J18, TX: J19, J20) "
"as DRTIO satellite channel instead of the SFP")
args = parser.parse_args()
argdict = dict()
argdict["sma_as_sat"] = args.sma
soc = Satellite(**soc_kc705_argdict(args), **argdict)
build_artiq_soc(soc, builder_argdict(args))
if __name__ == "__main__":
main()