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Merge remote-tracking branch 'origin/master' into eddie/xilinx_srl

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Eddie Hung 2019-08-28 09:21:03 -07:00
commit ba5d81c7f1
27 changed files with 1429 additions and 338 deletions
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46
techlibs/xilinx/synth_xilinx.cc
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@ -63,6 +63,9 @@ struct SynthXilinxPass : public ScriptPass
log(" generate an output netlist (and BLIF file) suitable for VPR\n");
log(" (this feature is experimental and incomplete)\n");
log("\n");
log(" -ise\n");
log(" generate an output netlist suitable for ISE (enables -iopad)\n");
log("\n");
log(" -nobram\n");
log(" do not use block RAM cells in output netlist\n");
log("\n");
@ -78,6 +81,15 @@ struct SynthXilinxPass : public ScriptPass
log(" -nowidelut\n");
log(" do not use MUXF[78] resources to implement LUTs larger than LUT6s\n");
log("\n");
log(" -iopad\n");
log(" enable I/O buffer insertion (selected automatically by -ise)\n");
log("\n");
log(" -noiopad\n");
log(" disable I/O buffer insertion (only useful with -ise)\n");
log("\n");
log(" -noclkbuf\n");
log(" disable automatic clock buffer insertion\n");
log("\n");
log(" -widemux <int>\n");
log(" enable inference of hard multiplexer resources (MUXF[78]) for muxes at or\n");
log(" above this number of inputs (minimum value 2, recommended value >= 5).\n");
@ -104,7 +116,7 @@ struct SynthXilinxPass : public ScriptPass
}
std::string top_opt, edif_file, blif_file, family;
bool flatten, retime, vpr, nobram, nolutram, nosrl, nocarry, nowidelut, abc9;
bool flatten, retime, vpr, ise, iopad, noiopad, noclkbuf, nobram, nolutram, nosrl, nocarry, nowidelut, abc9;
bool flatten_before_abc;
int widemux;
@ -117,6 +129,10 @@ struct SynthXilinxPass : public ScriptPass
flatten = false;
retime = false;
vpr = false;
ise = false;
iopad = false;
noiopad = false;
noclkbuf = false;
nocarry = false;
nobram = false;
nolutram = false;
@ -184,6 +200,22 @@ struct SynthXilinxPass : public ScriptPass
vpr = true;
continue;
}
if (args[argidx] == "-ise") {
ise = true;
continue;
}
if (args[argidx] == "-iopad") {
iopad = true;
continue;
}
if (args[argidx] == "-noiopad") {
noiopad = true;
continue;
}
if (args[argidx] == "-noclkbuf") {
noclkbuf = true;
continue;
}
if (args[argidx] == "-nocarry") {
nocarry = true;
continue;
@ -430,6 +462,18 @@ struct SynthXilinxPass : public ScriptPass
run("clean");
}
if (check_label("finalize")) {
bool do_iopad = iopad || (ise && !noiopad);
if (help_mode || !noclkbuf) {
if (help_mode || do_iopad)
run("clkbufmap -buf BUFG O:I -inpad IBUFG O:I", "(skip if '-noclkbuf', '-inpad' passed if '-iopad' or '-ise' and not '-noiopad')");
else
run("clkbufmap -buf BUFG O:I");
}
if (do_iopad)
run("iopadmap -bits -outpad OBUF I:O -inpad IBUF O:I A:top", "(only if '-iopad' or '-ise' and not '-noiopad')");
}
if (check_label("check")) {
run("hierarchy -check");
run("stat -tech xilinx");