litex/mibuild/xilinx_vivado.py

107 lines
3.6 KiB
Python

# This file is Copyright (c) 2014 Florent Kermarrec <florent@enjoy-digital.fr>
# License: BSD
import os, subprocess, sys
from migen.fhdl.std import *
from migen.fhdl.structure import _Fragment
from mibuild.generic_platform import *
from mibuild import tools
from mibuild.xilinx_common import CRG_SE, CRG_DS
def _format_constraint(c):
if isinstance(c, Pins):
return "set_property LOC " + c.identifiers[0]
elif isinstance(c, IOStandard):
return "set_property IOSTANDARD " + c.name
elif isinstance(c, Drive):
return "set property DRIVE " + + str(c.strength)
elif isinstance(c, Misc):
return c.misc
def _format_xdc(signame, pin, others, resname):
fmt_c = [_format_constraint(c) for c in ([Pins(pin)] + others)]
fmt_r = resname[0] + ":" + str(resname[1])
if resname[2] is not None:
fmt_r += "." + resname[2]
r = " ## %s\n" %fmt_r
for c in fmt_c:
r += c + " [get_ports " + signame + "]\n"
return r
def _build_xdc(named_sc, named_pc):
r = ""
for sig, pins, others, resname in named_sc:
if len(pins) > 1:
for i, p in enumerate(pins):
r += _format_xdc(sig + "[" + str(i) + "]", p, others, resname)
else:
r += _format_xdc(sig, pins[0], others, resname)
if named_pc:
r += "\n" + "\n\n".join(named_pc)
return r
def _build_files(device, sources, vincpaths, build_name):
tcl_contents = ""
for filename, language in sources:
tcl_contents += "add_files " + filename.replace("\\", "/") + "\n"
tcl_contents += "read_xdc %s.xdc\n" %build_name
tcl_contents += "synth_design -top top -part %s -include_dirs {%s}\n" %(device, " ".join(vincpaths))
tcl_contents += "place_design\n"
tcl_contents += "route_design\n"
tcl_contents += "report_timing_summary -file %s_timing.rpt\n" %(build_name)
tcl_contents += "report_utilization -file %s_utilization.rpt\n" %(build_name)
tcl_contents += "write_bitstream -force %s.bit \n" %build_name
tcl_contents += "quit\n"
tools.write_to_file(build_name + ".tcl", tcl_contents)
def _run_vivado(build_name, vivado_path, source):
if sys.platform == "win32" or sys.platform == "cygwin":
source = False
build_script_contents = "# Autogenerated by mibuild\nset -e\n"
if source:
raise NotImplementedError
build_script_contents += """
vivado -mode tcl -source {build_name}.tcl
""".format(build_name=build_name)
build_script_file = "build_" + build_name + ".sh"
tools.write_to_file(build_script_file, build_script_contents, force_unix=True)
r = subprocess.call(["bash", build_script_file])
if r != 0:
raise OSError("Subprocess failed")
class XilinxVivadoPlatform(GenericPlatform):
bitstream_ext = ".bit"
def get_verilog(self, *args, special_overrides=dict(), **kwargs):
so = {}
so.update(special_overrides)
return GenericPlatform.get_verilog(self, *args, special_overrides=so, **kwargs)
def build(self, fragment, build_dir="build", build_name="top",
vivado_path="/opt/Xilinx", source=True, run=True):
tools.mkdir_noerror(build_dir)
os.chdir(build_dir)
if not isinstance(fragment, _Fragment):
fragment = fragment.get_fragment()
self.finalize(fragment)
v_src, named_sc, named_pc = self.get_verilog(fragment)
v_file = build_name + ".v"
tools.write_to_file(v_file, v_src)
sources = self.sources + [(v_file, "verilog")]
_build_files(self.device, sources, self.verilog_include_paths, build_name)
tools.write_to_file(build_name + ".xdc", _build_xdc(named_sc, named_pc))
if run:
_run_vivado(build_name, vivado_path, source)
os.chdir("..")
def add_period_constraint(self, clk, period):
if period is not None:
self.add_platform_command("""create_clock -name {clk} -period """ +\
str(period) + """ [get_ports {clk}]""", clk=clk)