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build/microsemi/libero_soc: give better names to pdc files: io/fp

This commit is contained in:
Florent Kermarrec 2018-11-23 08:03:55 +01:00
parent 4f092dbe35
commit 18d513a146
1 changed files with 23 additions and 17 deletions
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40
litex/build/microsemi/libero_soc.py
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@ -12,7 +12,7 @@ from litex.build.generic_platform import *
from litex.build import tools from litex.build import tools
from litex.build.microsemi import common from litex.build.microsemi import common
def _format_constraint(c): def _format_io_constraint(c):
if isinstance(c, Pins): if isinstance(c, Pins):
return "-pin_name {} ".format(c.identifiers[0]) return "-pin_name {} ".format(c.identifiers[0])
elif isinstance(c, IOStandard): elif isinstance(c, IOStandard):
@ -21,26 +21,31 @@ def _format_constraint(c):
raise NotImplementedError raise NotImplementedError
def _format_pdc(signame, pin, others): def _format_io_pdc(signame, pin, others):
fmt_c = [_format_constraint(c) for c in ([Pins(pin)] + others)] fmt_c = [_format_io_constraint(c) for c in ([Pins(pin)] + others)]
r = "set_io " r = "set_io "
r += "-port_name {{{}}} ".format(signame) r += "-port_name {{{}}} ".format(signame)
for c in ([Pins(pin)] + others): for c in ([Pins(pin)] + others):
r += _format_constraint(c) r += _format_io_constraint(c)
r += "-fixed true " r += "-fixed true "
r += "\n" r += "\n"
return r return r
def _build_pdc(named_sc, named_pc, build_name): def _build_io_pdc(named_sc, named_pc, build_name, additional_io_constraints):
pdc = "" pdc = ""
for sig, pins, others, resname in named_sc: for sig, pins, others, resname in named_sc:
if len(pins) > 1: if len(pins) > 1:
for i, p in enumerate(pins): for i, p in enumerate(pins):
pdc += _format_pdc(sig + "[" + str(i) + "]", p, others) pdc += _format_io_pdc(sig + "[" + str(i) + "]", p, others)
else: else:
pdc += _format_pdc(sig, pins[0], others) pdc += _format_io_pdc(sig, pins[0], others)
tools.write_to_file(build_name + ".pdc", pdc) pdc += "\n".join(additional_io_constraints)
tools.write_to_file(build_name + "_io.pdc", pdc)
def _build_fp_pdc(build_name, additional_fp_constraints):
pdc = "\n".join(additional_fp_constraints)
tools.write_to_file(build_name + "_fp.pdc", pdc)
def _build_tcl(platform, sources, build_dir, build_name): def _build_tcl(platform, sources, build_dir, build_name):
@ -102,13 +107,13 @@ def _build_tcl(platform, sources, build_dir, build_name):
if file.endswith(".init"): if file.endswith(".init"):
tcl.append("file copy -- {} impl/synthesis".format(file)) tcl.append("file copy -- {} impl/synthesis".format(file))
# import io / placement constraints # import io / fp constraints
tcl.append("import_files -io_pdc {{{}}}".format(build_name + ".pdc")) tcl.append("import_files -io_pdc {{{}}}".format(build_name + "_io.pdc"))
tcl.append("import_files -fp_pdc {{{}}}".format(build_name + "_additional.pdc")) tcl.append("import_files -fp_pdc {{{}}}".format(build_name + "_fp.pdc"))
tcl.append(" ".join(["organize_tool_files", tcl.append(" ".join(["organize_tool_files",
"-tool {PLACEROUTE}", "-tool {PLACEROUTE}",
"-file impl/constraint/io/{}.pdc".format(build_name), "-file impl/constraint/io/{}_io.pdc".format(build_name),
"-file impl/constraint/fp/{}_additional.pdc".format(build_name), "-file impl/constraint/fp/{}_fp.pdc".format(build_name),
"-module {}".format(build_name), "-module {}".format(build_name),
"-input_type {constraint}" "-input_type {constraint}"
])) ]))
@ -195,7 +200,8 @@ class MicrosemiLiberoSoCPolarfireToolchain:
def __init__(self): def __init__(self):
self.clocks = dict() self.clocks = dict()
self.false_paths = set() self.false_paths = set()
self.additional_constraints = [] self.additional_io_constraints = []
self.additional_fp_constraints = []
def build(self, platform, fragment, build_dir="build", build_name="top", def build(self, platform, fragment, build_dir="build", build_name="top",
toolchain_path=None, run=False, **kwargs): toolchain_path=None, run=False, **kwargs):
@ -218,10 +224,10 @@ class MicrosemiLiberoSoCPolarfireToolchain:
_build_tcl(platform, platform.sources, build_dir, build_name) _build_tcl(platform, platform.sources, build_dir, build_name)
# generate design io constraints (pdc) # generate design io constraints (pdc)
_build_pdc(named_sc, named_pc, build_name) _build_io_pdc(named_sc, named_pc, build_name, self.additional_io_constraints)
# generate design additional constraints (pdc) # generate design fp constraints (pdc)
tools.write_to_file(build_name + "_additional.pdc", "\n".join(self.additional_constraints)) _build_fp_pdc(build_name, self.additional_fp_constraints)
# generate design timing constraints (sdc) # generate design timing constraints (sdc)
_build_sdc(top_output.ns, self.clocks, self.false_paths, build_name) _build_sdc(top_output.ns, self.clocks, self.false_paths, build_name)