diff options
Diffstat (limited to 'ecp5/pack.cc')
| -rw-r--r-- | ecp5/pack.cc | 53 |
1 files changed, 52 insertions, 1 deletions
diff --git a/ecp5/pack.cc b/ecp5/pack.cc index ef65fd27..8aa7f5c9 100644 --- a/ecp5/pack.cc +++ b/ecp5/pack.cc @@ -856,7 +856,19 @@ class Ecp5Packer uc->params[ctx->id(user.port.str(ctx) + "MUX")] = constval ? "1" : "0"; } uc->ports[user.port].net = nullptr; - + } else if (uc->type == id_ALU54B || uc->type == id_MULT18X18D) { + if (user.port.str(ctx).substr(0, 3) == "CLK" || user.port.str(ctx).substr(0, 2) == "CE" || + user.port.str(ctx).substr(0, 3) == "RST" || user.port.str(ctx).substr(0, 3) == "SRO" || + user.port.str(ctx).substr(0, 3) == "SRI" || user.port.str(ctx).substr(0, 2) == "RO" || + user.port.str(ctx).substr(0, 2) == "MA" || user.port.str(ctx).substr(0, 2) == "MB" || + user.port.str(ctx).substr(0, 3) == "CFB" || user.port.str(ctx).substr(0, 3) == "CIN" || + user.port.str(ctx).substr(0, 6) == "SOURCE" || user.port.str(ctx).substr(0, 6) == "SIGNED") { + uc->ports[user.port].net = constnet; + constnet->users.push_back(user); + } else { + // Connected to CIB ABCD. Default state is bitstream configurable + uc->params[ctx->id(user.port.str(ctx) + "MUX")] = constval ? "1" : "0"; + } } else { uc->ports[user.port].net = constnet; constnet->users.push_back(user); @@ -974,11 +986,50 @@ class Ecp5Packer } } + // Pack DSPs + void pack_dsps() + { + for (auto cell : sorted(ctx->cells)) { + CellInfo *ci = cell.second; + if (ci->type == id_MULT18X18D) { + // Add ports, even if disconnected, to ensure correct tie-offs + for (auto sig : {"CLK", "CE", "RST"}) + for (int i = 0; i < 4; i++) + autocreate_empty_port(ci, ctx->id(sig + std::to_string(i))); + for (auto sig : {"SIGNED", "SOURCE"}) + for (auto c : {"A", "B"}) + autocreate_empty_port(ci, ctx->id(sig + std::string(c))); + for (auto port : {"A", "B", "C"}) + for (int i = 0; i < 18; i++) + autocreate_empty_port(ci, ctx->id(port + std::to_string(i))); + for (auto port : {"SRIA", "SRIB"}) + for (int i = 0; i < 18; i++) + autocreate_empty_port(ci, ctx->id(port + std::to_string(i))); + } else if (ci->type == id_ALU54B) { + for (auto sig : {"CLK", "CE", "RST"}) + for (int i = 0; i < 4; i++) + autocreate_empty_port(ci, ctx->id(sig + std::to_string(i))); + autocreate_empty_port(ci, id_SIGNEDIA); + autocreate_empty_port(ci, id_SIGNEDIB); + autocreate_empty_port(ci, id_SIGNEDCIN); + for (auto port : {"A", "B", "MA", "MB"}) + for (int i = 0; i < 36; i++) + autocreate_empty_port(ci, ctx->id(port + std::to_string(i))); + for (auto port : {"C", "CFB", "CIN"}) + for (int i = 0; i < 54; i++) + autocreate_empty_port(ci, ctx->id(port + std::to_string(i))); + for (int i = 0; i < 11; i++) + autocreate_empty_port(ci, ctx->id("OP" + std::to_string(i))); + } + } + } + public: void pack() { pack_io(); pack_ebr(); + pack_dsps(); pack_constants(); pack_dram(); pack_carries(); |