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Merge pull request #484 from ilya-epifanov/lattice-trellis-toolchain-seed 

Can now pass `--seed` to `nextpnr-ecp5` via `TrellisToolchain` `kwargs`
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enjoy-digital 2020-05-11 09:13:26 +02:00 committed by GitHub
parent 5987ddb454 ac1e968351
commit 5ee01c9460
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1 changed files with 6 additions and 4 deletions
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10
litex/build/lattice/trellis.py
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@ -117,11 +117,11 @@ nextpnr_ecp5_architectures = {
_build_template = [
"yosys -l {build_name}.rpt {build_name}.ys",
"nextpnr-ecp5 --json {build_name}.json --lpf {build_name}.lpf --textcfg {build_name}.config \
--{architecture} --package {package} --speed {speed_grade} {timefailarg} {ignoreloops}",
--{architecture} --package {package} --speed {speed_grade} {timefailarg} {ignoreloops} {seed}",
"ecppack {build_name}.config --svf {build_name}.svf --bit {build_name}.bit"
]
def _build_script(source, build_template, build_name, architecture, package, speed_grade, timingstrict, ignoreloops):
def _build_script(source, build_template, build_name, architecture, package, speed_grade, timingstrict, ignoreloops, seed):
if sys.platform in ("win32", "cygwin"):
script_ext = ".bat"
script_contents = "@echo off\nrem Autogenerated by LiteX / git: " + tools.get_litex_git_revision() + "\n\n"
@ -140,7 +140,8 @@ def _build_script(source, build_template, build_name, architecture, package, spe
speed_grade = speed_grade,
timefailarg = "--timing-allow-fail" if not timingstrict else "",
ignoreloops = "--ignore-loops" if ignoreloops else "",
fail_stmt = fail_stmt)
fail_stmt = fail_stmt,
seed = f"--seed {seed}" if seed is not None else "")
script_file = "build_" + build_name + script_ext
tools.write_to_file(script_file, script_contents, force_unix=False)
@ -186,6 +187,7 @@ class LatticeTrellisToolchain:
nowidelut = False,
timingstrict = False,
ignoreloops = False,
seed = None,
**kwargs):
# Create build directory
@ -217,7 +219,7 @@ class LatticeTrellisToolchain:
# Generate build script
script = _build_script(False, self.build_template, build_name, architecture, package,
speed_grade, timingstrict, ignoreloops)
speed_grade, timingstrict, ignoreloops, seed)
# Run
if run: