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