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build/lattice/icestorm: add timingstrict parameter and default to False. (similar behavior than others backends)

This commit is contained in:
Florent Kermarrec 2020-03-09 19:02:23 +01:00
parent 1e9aa64387
commit 38d7f8a6e6
1 changed files with 5 additions and 3 deletions
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8
litex/build/lattice/icestorm.py
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@ -90,11 +90,11 @@ def parse_device(device):
_build_template = [
"yosys -l {build_name}.rpt {build_name}.ys",
"nextpnr-ice40 --json {build_name}.json --pcf {build_name}.pcf --asc {build_name}.txt \
--pre-pack {build_name}_pre_pack.py --{architecture} --package {package}",
--pre-pack {build_name}_pre_pack.py --{architecture} --package {package} {timefailarg}",
"icepack -s {build_name}.txt {build_name}.bin"
]
def _build_script(build_template, build_name, architecture, package):
def _build_script(build_template, build_name, architecture, package, timingstrict):
if sys.platform in ("win32", "cygwin"):
script_ext = ".bat"
build_script_contents = "@echo off\nrem Autogenerated by LiteX / git: " + tools.get_litex_git_revision() + "\n\n"
@ -110,6 +110,7 @@ def _build_script(build_template, build_name, architecture, package):
build_name = build_name,
architecture = architecture,
package = package,
timefailarg = "--timing-allow-fail" if not timingstrict else "",
fail_stmt = fail_stmt)
build_script_file = "build_" + build_name + script_ext
@ -153,6 +154,7 @@ class LatticeIceStormToolchain:
build_name = "top",
synth_opts = "",
run = True,
timingstrict = False,
**kwargs):
# Create build directory
@ -185,7 +187,7 @@ class LatticeIceStormToolchain:
(family, architecture, package) = parse_device(platform.device)
# Generate build script
script = _build_script(self.build_template, build_name, architecture, package)
script = _build_script(self.build_template, build_name, architecture, package, timingstrict)
# Run
if run: