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ecp5: Add --out-of-context for building hard macros

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Signed-off-by: David Shah <[email protected]>
This commit is contained in:
David Shah
2019-08-07 14:22:47 +01:00
parent 90364fc3fa
commit 661237eb64
8 changed files with 51 additions and 13 deletions
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ecp5/main.cc
+7
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@@ -71,6 +71,8 @@ po::options_description ECP5CommandHandler::getArchOptions()
specific.add_options()("lpf", po::value<std::vector<std::string>>(), "LPF pin constraint file(s)");
specific.add_options()("lpf-allow-unconstrained", "don't require LPF file(s) to constrain all IO");
specific.add_options()("out-of-context", "disable IO buffer insertion and global promotion/routing, for building pre-routed blocks (experimental)");
return specific;
}
void ECP5CommandHandler::validate()
@@ -91,6 +93,9 @@ void ECP5CommandHandler::customBitstream(Context *ctx)
basecfg = vm["basecfg"].as<std::string>();
}
if (bool_or_default(ctx->settings, ctx->id("arch.ooc")) && vm.count("textcfg"))
log_error("bitstream generation is not available in out-of-context mode (use --write to create a post-PnR JSON design)\n");
std::string textcfg;
if (vm.count("textcfg"))
textcfg = vm["textcfg"].as<std::string>();
@@ -228,6 +233,8 @@ std::unique_ptr<Context> ECP5CommandHandler::createContext(std::unordered_map<st
ctx->settings[ctx->id(val.first)] = val.second;
ctx->settings[ctx->id("arch.package")] = ctx->archArgs().package;
ctx->settings[ctx->id("arch.speed")] = speedString(ctx->archArgs().speed);
if (vm.count("out-of-context"))
ctx->settings[ctx->id("arch.ooc")] = 1;
return ctx;
}