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| author | Clifford Wolf <clifford@clifford.at> | 2019-03-05 19:49:39 -0800 |
|---|---|---|
| committer | Clifford Wolf <clifford@clifford.at> | 2019-03-05 20:36:00 -0800 |
| commit | da5181a3df6ceed96f1762e4cdaec5cbe3ea23db (patch) | |
| tree | d7ac97924d42aca59fedc7e3c2a61aadc36ed9b8 /techlibs/sf2/sf2_iobs.cc | |
| parent | d03780c3f463bb8ac2c5d300ba7a591f1bc90a8f (diff) | |
| download | yosys-da5181a3df6ceed96f1762e4cdaec5cbe3ea23db.tar.gz yosys-da5181a3df6ceed96f1762e4cdaec5cbe3ea23db.tar.bz2 yosys-da5181a3df6ceed96f1762e4cdaec5cbe3ea23db.zip | |
Improvements in SF2 flow and demo
Signed-off-by: Clifford Wolf <clifford@clifford.at>
Diffstat (limited to 'techlibs/sf2/sf2_iobs.cc')
| -rw-r--r-- | techlibs/sf2/sf2_iobs.cc | 15 |
1 files changed, 10 insertions, 5 deletions
diff --git a/techlibs/sf2/sf2_iobs.cc b/techlibs/sf2/sf2_iobs.cc index 27141430c..a85552575 100644 --- a/techlibs/sf2/sf2_iobs.cc +++ b/techlibs/sf2/sf2_iobs.cc @@ -33,18 +33,23 @@ struct Sf2IobsPass : public Pass { log("\n"); log("Add SF2 I/O buffers to top module IOs as needed.\n"); log("\n"); + log(" -noclkbuf\n"); + log(" Do not insert clock buffers\n"); + log("\n"); } void execute(std::vector<std::string> args, RTLIL::Design *design) YS_OVERRIDE { + bool noclkbuf_mode = false; + log_header(design, "Executing sf2_iobs pass (insert IO buffers).\n"); size_t argidx; for (argidx = 1; argidx < args.size(); argidx++) { - // if (args[argidx] == "-singleton") { - // singleton_mode = true; - // continue; - // } + if (args[argidx] == "-noclkbuf") { + noclkbuf_mode = true; + continue; + } break; } extra_args(args, argidx, design); @@ -94,7 +99,7 @@ struct Sf2IobsPass : public Pass { if (wire->port_output) { buf_type = "\\OUTBUF"; buf_port = "\\D"; - } else if (clk_bits.count(canonical_bit)) { + } else if (clk_bits.count(canonical_bit) && !noclkbuf_mode) { buf_type = "\\CLKBUF"; buf_port = "\\Y"; } else { |