# Yosys/Nextpnr Helpers/Templates ------------------------------------------------------------------
_yosys_template = [
+ "verilog_defaults -push",
+ "verilog_defaults -add -defer",
"{read_files}",
+ "verilog_defaults -pop",
"attrmap -tocase keep -imap keep=\"true\" keep=1 -imap keep=\"false\" keep=0 -remove keep=0",
"synth_ecp5 -abc9 {nwl} -json {build_name}.json -top {build_name}",
]
return (family, size, speed_grade, package)
nextpnr_ecp5_architectures = {
+ "lfe5u-12f" : "12k",
"lfe5u-25f" : "25k",
"lfe5u-45f" : "45k",
"lfe5u-85f" : "85k",
_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}",
- "ecppack {build_name}.config --svf {build_name}.svf --bit {build_name}.bit"
+ --{architecture} --package {package} --speed {speed_grade} {timefailarg} {ignoreloops} --seed {seed}",
+ "ecppack {build_name}.config --svf {build_name}.svf --bit {build_name}.bit --bootaddr {bootaddr} --spimode {spimode}"
]
-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, bootaddr, seed, spimode):
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"
speed_grade = speed_grade,
timefailarg = "--timing-allow-fail" if not timingstrict else "",
ignoreloops = "--ignore-loops" if ignoreloops else "",
- fail_stmt = fail_stmt)
+ bootaddr = bootaddr,
+ fail_stmt = fail_stmt,
+ seed = seed,
+ spimode = spimode)
script_file = "build_" + build_name + script_ext
tools.write_to_file(script_file, script_contents, force_unix=False)
nowidelut = False,
timingstrict = False,
ignoreloops = False,
+ bootaddr = 0,
+ seed = 1,
+ spimode = "fast-read",
**kwargs):
# Create build directory
# Generate build script
script = _build_script(False, self.build_template, build_name, architecture, package,
- speed_grade, timingstrict, ignoreloops)
-
+ speed_grade, timingstrict, ignoreloops, bootaddr, seed, spimode)
# Run
if run:
_run_script(script)
help="fail if timing not met, i.e., do NOT pass '--timing-allow-fail' to nextpnr")
parser.add_argument("--nextpnr-ignoreloops", action="store_true",
help="ignore combinational loops in timing analysis, i.e. pass '--ignore-loops' to nextpnr")
+ parser.add_argument("--ecppack-bootaddr", default=0,
+ help="Set boot address for next image, i.e. pass '--bootaddr xxx' to ecppack")
+ parser.add_argument("--ecppack-spimode", default="fast-read",
+ help="Set slave SPI programming mode")
+ parser.add_argument("--nextpnr-seed", default=1, type=int,
+ help="seed to pass to nextpnr")
def trellis_argdict(args):
return {
"nowidelut": args.yosys_nowidelut,
"timingstrict": args.nextpnr_timingstrict,
"ignoreloops": args.nextpnr_ignoreloops,
+ "bootaddr": args.ecppack_bootaddr,
+ "spimode": args.ecppack_spimode,
+ "seed": args.nextpnr_seed,
}