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ecp5: Support LOC attribute on DCUs

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Signed-off-by: David Shah <dave@ds0.me>
This commit is contained in:
David Shah 2018-11-11 15:50:56 +00:00
parent 01e0da16f0
commit 91a0927196
1 changed files with 25 additions and 1 deletions
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26
ecp5/pack.cc
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@ -1098,6 +1098,26 @@ class Ecp5Packer
for (auto cell : sorted(ctx->cells)) {
CellInfo *ci = cell.second;
if (ci->type == id_DCUA) {
if (ci->attrs.count(ctx->id("LOC"))) {
std::string loc = ci->attrs.at(ctx->id("LOC"));
if (loc == "DCU0" &&
(ctx->args.type == ArchArgs::LFE5UM_25F || ctx->args.type == ArchArgs::LFE5UM5G_25F))
ci->attrs[ctx->id("BEL")] = "X42/Y50/DCU";
else if (loc == "DCU0" &&
(ctx->args.type == ArchArgs::LFE5UM_45F || ctx->args.type == ArchArgs::LFE5UM5G_45F))
ci->attrs[ctx->id("BEL")] = "X42/Y71/DCU";
else if (loc == "DCU1" &&
(ctx->args.type == ArchArgs::LFE5UM_45F || ctx->args.type == ArchArgs::LFE5UM5G_45F))
ci->attrs[ctx->id("BEL")] = "X69/Y71/DCU";
else if (loc == "DCU0" &&
(ctx->args.type == ArchArgs::LFE5UM_85F || ctx->args.type == ArchArgs::LFE5UM5G_85F))
ci->attrs[ctx->id("BEL")] = "X46/Y95/DCU";
else if (loc == "DCU1" &&
(ctx->args.type == ArchArgs::LFE5UM_85F || ctx->args.type == ArchArgs::LFE5UM5G_85F))
ci->attrs[ctx->id("BEL")] = "X71/Y95/DCU";
else
log_error("no DCU location '%s' in device '%s'\n", loc.c_str(), ctx->getChipName().c_str());
}
if (!ci->attrs.count(ctx->id("BEL")))
log_error("DCU must be constrained to a Bel!\n");
// Empty port auto-creation to generate correct tie-downs
@ -1112,7 +1132,11 @@ class Ecp5Packer
for (auto pin : ctx->getBelPins(exemplar_bel))
if (ctx->getBelPinType(exemplar_bel, pin) == PORT_IN)
autocreate_empty_port(ci, pin);
} else if (ci->type == id_EXTREFB) {
}
}
for (auto cell : sorted(ctx->cells)) {
CellInfo *ci = cell.second;
if (ci->type == id_EXTREFB) {
const NetInfo *refo = net_or_nullptr(ci, id_REFCLKO);
CellInfo *dcu = nullptr;
if (refo == nullptr)