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openxc7 toolchain: auto generate chipdb, if missing

This commit is contained in:
Hans Baier 2023-10-24 12:01:35 +07:00
parent 8d0f08a57e
commit f3f46e8cf1
1 changed files with 27 additions and 5 deletions
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30
litex/build/xilinx/yosys_nextpnr.py
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@ -100,16 +100,38 @@ class XilinxYosysNextpnrToolchain(YosysNextPNRToolchain):
if self.is_openxc7:
chipdb_dir = os.environ.get('CHIPDB')
if chipdb_dir is None or chipdb_dir == "":
print("Error: please specify the directory, where you store your nextpnr-xilinx chipdb files in the environment variable CHIPDB (may be empty)")
print("Error: please specify the directory, where you store your nextpnr-xilinx chipdb files in the environment variable CHIPDB (directory may be empty)")
exit(1)
else:
chipdb_dir = "/usr/share/nextpnr/xilinx-chipdb"
chipdb = os.path.join(chipdb_dir, self.dbpart) + ".bin"
if not os.path.exists(chipdb):
if self.is_openxc7:
print(f"Chip database file '{chipdb}' not found, generating...")
pypy3 = os.environ.get('PYPY3')
if pypy3 is None or pypy3 == "":
pypy3 = which("pypy3")
if pypy3 is None:
pypy3 = "python3"
nextpnr_xilinx_python_dir = os.environ.get('NEXTPNR_XILINX_PYTHON_DIR')
if nextpnr_xilinx_python_dir is None or nextpnr_xilinx_python_dir == "":
nextpnr_xilinx_python_dir = "/snap/openxc7/current/opt/nextpnr-xilinx/python"
bba = self.dbpart + ".bba"
bbaexport = [pypy3, os.path.join(nextpnr_xilinx_python_dir, "bbaexport.py"), "--device", self.platform.device, "--bba", bba]
print(str(bbaexport))
subprocess.run(bbaexport)
subprocess.run(["bbasm", "-l", bba, chipdb])
os.remove(bba)
else:
print("Chip database file '{chipdb}' not found. Please check your toolchain installation!")
exit(1)
# pnr options
self._pnr_opts += "--chipdb {chipdb_dir}/{dbpart}.bin --write {top}_routed.json".format(
self._pnr_opts += "--chipdb {chipdb} --write {top}_routed.json".format(
top = self._build_name,
chipdb_dir = chipdb_dir,
dbpart = self.dbpart,
chipdb = chipdb
)
if self.is_openxc7: