From 4f092dbe35736b060eb3c0893be8f80a3ed39327 Mon Sep 17 00:00:00 2001 From: Florent Kermarrec Date: Thu, 22 Nov 2018 18:40:19 +0100 Subject: [PATCH] build/microsemi/libero_soc: add additional_constraints --- litex/build/microsemi/libero_soc.py | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/litex/build/microsemi/libero_soc.py b/litex/build/microsemi/libero_soc.py index fca2d6fa1..0d458292e 100644 --- a/litex/build/microsemi/libero_soc.py +++ b/litex/build/microsemi/libero_soc.py @@ -102,11 +102,13 @@ def _build_tcl(platform, sources, build_dir, build_name): if file.endswith(".init"): tcl.append("file copy -- {} impl/synthesis".format(file)) - # import io constraints + # import io / placement constraints tcl.append("import_files -io_pdc {{{}}}".format(build_name + ".pdc")) + tcl.append("import_files -fp_pdc {{{}}}".format(build_name + "_additional.pdc")) tcl.append(" ".join(["organize_tool_files", "-tool {PLACEROUTE}", "-file impl/constraint/io/{}.pdc".format(build_name), + "-file impl/constraint/fp/{}_additional.pdc".format(build_name), "-module {}".format(build_name), "-input_type {constraint}" ])) @@ -193,6 +195,7 @@ class MicrosemiLiberoSoCPolarfireToolchain: def __init__(self): self.clocks = dict() self.false_paths = set() + self.additional_constraints = [] def build(self, platform, fragment, build_dir="build", build_name="top", toolchain_path=None, run=False, **kwargs): @@ -217,6 +220,9 @@ class MicrosemiLiberoSoCPolarfireToolchain: # generate design io constraints (pdc) _build_pdc(named_sc, named_pc, build_name) + # generate design additional constraints (pdc) + tools.write_to_file(build_name + "_additional.pdc", "\n".join(self.additional_constraints)) + # generate design timing constraints (sdc) _build_sdc(top_output.ns, self.clocks, self.false_paths, build_name)