diff options
Diffstat (limited to 'techlibs/ice40/synth_ice40.cc')
| -rw-r--r-- | techlibs/ice40/synth_ice40.cc | 22 |
1 files changed, 18 insertions, 4 deletions
diff --git a/techlibs/ice40/synth_ice40.cc b/techlibs/ice40/synth_ice40.cc index 6c77e5482..718f9d9e0 100644 --- a/techlibs/ice40/synth_ice40.cc +++ b/techlibs/ice40/synth_ice40.cc @@ -37,6 +37,10 @@ struct SynthIce40Pass : public ScriptPass log("\n"); log("This command runs synthesis for iCE40 FPGAs.\n"); log("\n"); + log(" -device < hx | lp | u >\n"); + log(" optimise the synthesis netlist for the specified device.\n"); + log(" HX is the default target if no device argument specified.\n"); + log("\n"); log(" -top <module>\n"); log(" use the specified module as top module\n"); log("\n"); @@ -102,7 +106,7 @@ struct SynthIce40Pass : public ScriptPass } - string top_opt, blif_file, edif_file, json_file, abc; + string top_opt, blif_file, edif_file, json_file, abc, device_opt; bool nocarry, nodffe, nobram, dsp, flatten, retime, relut, noabc, abc2, vpr; int min_ce_use; @@ -124,6 +128,7 @@ struct SynthIce40Pass : public ScriptPass abc2 = false; vpr = false; abc = "abc"; + device_opt = "hx"; } void execute(std::vector<std::string> args, RTLIL::Design *design) YS_OVERRIDE @@ -210,12 +215,18 @@ struct SynthIce40Pass : public ScriptPass abc = "abc9"; continue; } + if (args[argidx] == "-device" && argidx+1 < args.size()) { + device_opt = args[++argidx]; + continue; + } break; } extra_args(args, argidx, design); if (!design->full_selection()) log_cmd_error("This command only operates on fully selected designs!\n"); + if (device_opt != "hx" && device_opt != "lp" && device_opt !="u") + log_cmd_error("Invalid or no device specified: '%s'\n", device_opt.c_str()); log_header(design, "Executing SYNTH_ICE40 pass.\n"); log_push(); @@ -229,7 +240,7 @@ struct SynthIce40Pass : public ScriptPass { if (check_label("begin")) { - run("read_verilog -lib +/ice40/cells_sim.v"); + run("read_verilog -lib -D ABC_MODEL +/ice40/cells_sim.v"); run(stringf("hierarchy -check %s", help_mode ? "-top <top>" : top_opt.c_str())); run("proc"); } @@ -282,7 +293,7 @@ struct SynthIce40Pass : public ScriptPass run("techmap"); else run("techmap -map +/techmap.v -map +/ice40/arith_map.v"); - if (retime || help_mode) + if ((retime || help_mode) && abc != "abc9") run(abc + " -dff", "(only if -retime)"); run("ice40_opt"); } @@ -316,7 +327,10 @@ struct SynthIce40Pass : public ScriptPass run("techmap -map +/gate2lut.v -D LUT_WIDTH=4", "(only if -noabc)"); } if (!noabc) { - run(abc + " -dress -lut 4", "(skip if -noabc)"); + if (abc == "abc9") + run(abc + stringf(" -dress -lut +/ice40/abc_%s.lut -box +/ice40/abc_%s.box", device_opt.c_str(), device_opt.c_str()), "(skip if -noabc)"); + else + run(abc + " -lut 4", "(skip if -noabc)"); } run("clean"); if (relut || help_mode) { |