artiq/artiq/gateware/targets/metlino.py

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2019-05-19 10:57:43 +08:00
#!/usr/bin/env python3
import argparse
from migen import *
from misoc.cores import gpio
from misoc.integration.builder import builder_args, builder_argdict
from misoc.interconnect.csr import *
from misoc.targets.metlino import *
from artiq.gateware.amp import AMPSoC
from artiq.gateware import eem
from artiq.gateware import fmcdio_vhdci_eem
from artiq.gateware import rtio
from artiq.gateware.rtio.phy import ttl_simple, ttl_serdes_ultrascale
from artiq.gateware.drtio.transceiver import gth_ultrascale
from artiq.gateware.drtio import *
from artiq.build_soc import *
def workaround_us_lvds_tristate(platform):
# Those shoddy Kintex Ultrascale FPGAs take almost a microsecond to change the direction of a
# LVDS I/O buffer. The application has to cope with it and this cannot be handled at static
# timing analysis. Disable the latter for IOBUFDS.
# See:
# https://forums.xilinx.com/t5/Timing-Analysis/Delay-890-ns-in-OBUFTDS-in-Kintex-UltraScale/td-p/868364
platform.add_platform_command(
"set_false_path -through [get_pins -filter {{REF_PIN_NAME == T}} -of [get_cells -filter {{REF_NAME == IOBUFDS}}]]")
class Master(MiniSoC, AMPSoC):
mem_map = {
"cri_con": 0x10000000,
"rtio": 0x11000000,
"rtio_dma": 0x12000000,
"drtioaux": 0x14000000,
"mailbox": 0x70000000
}
mem_map.update(MiniSoC.mem_map)
def __init__(self, **kwargs):
MiniSoC.__init__(self,
cpu_type="or1k",
sdram_controller_type="minicon",
l2_size=128*1024,
ethmac_nrxslots=4,
ethmac_ntxslots=4,
**kwargs)
AMPSoC.__init__(self)
add_identifier(self)
platform = self.platform
rtio_clk_freq = 150e6
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.config["SI5324_AS_SYNTHESIZER"] = None
self.config["RTIO_FREQUENCY"] = str(rtio_clk_freq/1e6)
self.submodules.drtio_transceiver = gth_ultrascale.GTH(
clock_pads=platform.request("cdr_clk_clean", 0),
# use only a few channels to work around Vivado bug
data_pads=[platform.request("mch_fabric_d", i) for i in range(3)],
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sys_clk_freq=self.clk_freq,
rtio_clk_freq=rtio_clk_freq)
self.csr_devices.append("drtio_transceiver")
self.submodules.rtio_tsc = rtio.TSC("async", glbl_fine_ts_width=3)
drtio_csr_group = []
drtioaux_csr_group = []
drtioaux_memory_group = []
drtio_cri = []
for i in range(len(self.drtio_transceiver.channels)):
core_name = "drtio" + str(i)
coreaux_name = "drtioaux" + str(i)
memory_name = "drtioaux" + str(i) + "_mem"
drtio_csr_group.append(core_name)
drtioaux_csr_group.append(coreaux_name)
drtioaux_memory_group.append(memory_name)
cdr = ClockDomainsRenamer({"rtio_rx": "rtio_rx" + str(i)})
core = cdr(DRTIOMaster(self.rtio_tsc, self.drtio_transceiver.channels[i]))
setattr(self.submodules, core_name, core)
drtio_cri.append(core.cri)
self.csr_devices.append(core_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("drtio", drtio_csr_group)
self.add_csr_group("drtioaux", drtioaux_csr_group)
self.add_memory_group("drtioaux_mem", drtioaux_memory_group)
rtio_clk_period = 1e9/rtio_clk_freq
gth0 = self.drtio_transceiver.gths[0]
platform.add_period_constraint(gth0.txoutclk, rtio_clk_period/2)
platform.add_period_constraint(gth0.rxoutclk, rtio_clk_period)
platform.add_false_path_constraints(
self.crg.cd_sys.clk,
gth0.txoutclk, gth0.rxoutclk)
for gth in self.drtio_transceiver.gths[1:]:
platform.add_period_constraint(gth.rxoutclk, rtio_clk_period)
platform.add_false_path_constraints(
self.crg.cd_sys.clk, gth0.txoutclk, gth.rxoutclk)
self.rtio_channels = rtio_channels = []
for i in range(4):
phy = ttl_simple.Output(platform.request("user_led", i))
self.submodules += phy
rtio_channels.append(rtio.Channel.from_phy(phy))
#platform.add_extension(fmcdio_vhdci_eem.io)
#platform.add_connectors(fmcdio_vhdci_eem.connectors)
#fmcdio_dirctl = platform.request("fmcdio_dirctl")
#for s in fmcdio_dirctl.clk, fmcdio_dirctl.ser, fmcdio_dirctl.latch:
# phy = ttl_simple.Output(s)
# self.submodules += phy
# rtio_channels.append(rtio.Channel.from_phy(phy))
#eem.DIO.add_std(self, 2, ttl_simple.Output, ttl_simple.Output,
# iostandard="LVDS")
#eem.Urukul.add_std(self, 1, 0, ttl_simple.Output,
# iostandard="LVDS")
#eem.Zotino.add_std(self, 3, ttl_simple.Output,
# iostandard="LVDS")
#workaround_us_lvds_tristate(platform)
self.config["HAS_RTIO_LOG"] = None
self.config["RTIO_LOG_CHANNEL"] = len(rtio_channels)
rtio_channels.append(rtio.LogChannel())
self.submodules.rtio_moninj = rtio.MonInj(rtio_channels)
self.csr_devices.append("rtio_moninj")
self.submodules.rtio_core = rtio.Core(self.rtio_tsc, rtio_channels)
self.csr_devices.append("rtio_core")
self.submodules.rtio = rtio.KernelInitiator(self.rtio_tsc)
self.submodules.rtio_dma = ClockDomainsRenamer("sys_kernel")(
rtio.DMA(self.get_native_sdram_if()))
self.register_kernel_cpu_csrdevice("rtio")
self.register_kernel_cpu_csrdevice("rtio_dma")
self.submodules.cri_con = rtio.CRIInterconnectShared(
[self.rtio.cri, self.rtio_dma.cri],
[self.rtio_core.cri] + drtio_cri,
enable_routing=True)
self.register_kernel_cpu_csrdevice("cri_con")
self.submodules.routing_table = rtio.RoutingTableAccess(self.cri_con)
self.csr_devices.append("routing_table")
def main():
parser = argparse.ArgumentParser(
description="Metlino gateware and firmware builder")
builder_args(parser)
soc_sdram_args(parser)
parser.set_defaults(output_dir="artiq_metlino")
args = parser.parse_args()
soc = Master(**soc_sdram_argdict(args))
build_artiq_soc(soc, builder_argdict(args))
if __name__ == "__main__":
main()