caiyu/nextpnr
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

mistral: Make RBF compression optional

Browse Source 
Signed-off-by: gatecat <gatecat@ds0.me>
This commit is contained in:
gatecat 2021-05-30 15:50:12 +01:00
parent e2b838a10a
commit eb2265a2bf
2 changed files with 9 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
mistral/bitstream.cc
View File

@ -34,6 +34,8 @@ struct MistralBitgen
ctx->init_base_bitstream();
// Default options
cv->opt_b_set(CycloneV::ALLOW_DEVICE_WIDE_OUTPUT_ENABLE_DIS, true);
if (!ctx->setting<bool>("compress_rbf", false))
cv->opt_b_set(CycloneV::COMPRESSION_DIS, true);
cv->opt_n_set(CycloneV::CRC_DIVIDE_ORDER, 8);
cv->opt_b_set(CycloneV::CVP_CONF_DONE_EN, true);
cv->opt_b_set(CycloneV::DEVICE_WIDE_RESET_EN, true);
@ -42,6 +44,9 @@ struct MistralBitgen
cv->opt_b_set(CycloneV::NCEO_DIS, true);
cv->opt_b_set(CycloneV::OCT_DONE_DIS, true);
cv->opt_r_set(CycloneV::OPT_A, 0x1dff);
if (!ctx->setting<bool>("compress_rbf", false))
cv->opt_r_set(CycloneV::OPT_B, 0xffffff40adffffffULL);
else
cv->opt_r_set(CycloneV::OPT_B, 0xffffff402dffffffULL);
cv->opt_b_set(CycloneV::RELEASE_CLEARS_BEFORE_TRISTATES_DIS, true);
cv->opt_b_set(CycloneV::RETRY_CONFIG_ON_ERROR_EN, true);

3
mistral/main.cc
View File

@ -51,6 +51,7 @@ po::options_description MistralCommandHandler::getArchOptions()
specific.add_options()("device", po::value<std::string>(), "device name (e.g. 5CSEBA6U23I7)");
specific.add_options()("qsf", po::value<std::string>(), "path to QSF constraints file");
specific.add_options()("rbf", po::value<std::string>(), "RBF bitstream to write");
specific.add_options()("compress-rbf", "generate compressed bitstream");
return specific;
}
@ -82,6 +83,8 @@ std::unique_ptr<Context> MistralCommandHandler::createContext(std::unordered_map
chipArgs.mistral_root = vm["mistral"].as<std::string>();
chipArgs.device = vm["device"].as<std::string>();
auto ctx = std::unique_ptr<Context>(new Context(chipArgs));
if (vm.count("compress-rbf"))
ctx->settings[ctx->id("compress_rbf")] = Property::State::S1;
return ctx;
}