diff options
Diffstat (limited to 'ecp5/pack.cc')
| -rw-r--r-- | ecp5/pack.cc | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/ecp5/pack.cc b/ecp5/pack.cc index 0045617b..ef65fd27 100644 --- a/ecp5/pack.cc +++ b/ecp5/pack.cc @@ -844,6 +844,19 @@ class Ecp5Packer ((!constval && str_or_default(uc->params, ctx->id("LSRMUX"), "LSR") == "LSR") || (constval && str_or_default(uc->params, ctx->id("LSRMUX"), "LSR") == "INV"))) { uc->ports[user.port].net = nullptr; + } else if (uc->type == id_DP16KD) { + if (user.port == id_CLKA || user.port == id_CLKB || user.port == id_RSTA || user.port == id_RSTB || + user.port == id_WEA || user.port == id_WEB || user.port == id_CEA || user.port == id_CEB || + user.port == id_OCEA || user.port == id_OCEB || user.port == id_CSA0 || user.port == id_CSA1 || + user.port == id_CSA2 || user.port == id_CSB0 || user.port == id_CSB1 || user.port == id_CSB2) { + // Connect to CIB CLK, LSR or CE. Default state is 1 + uc->params[ctx->id(user.port.str(ctx) + "MUX")] = constval ? user.port.str(ctx) : "INV"; + } else { + // Connected to CIB ABCD. Default state is bitstream configurable + uc->params[ctx->id(user.port.str(ctx) + "MUX")] = constval ? "1" : "0"; + } + uc->ports[user.port].net = nullptr; + } else { uc->ports[user.port].net = constnet; constnet->users.push_back(user); @@ -909,10 +922,63 @@ class Ecp5Packer } } + void autocreate_empty_port(CellInfo *cell, IdString port) + { + if (!cell->ports.count(port)) { + cell->ports[port].name = port; + cell->ports[port].net = nullptr; + cell->ports[port].type = PORT_IN; + } + } + + // Pack EBR + void pack_ebr() + { + // Autoincrement WID (starting from 3 seems to match vendor behaviour?) + int wid = 3; + for (auto cell : sorted(ctx->cells)) { + CellInfo *ci = cell.second; + if (ci->type == id_DP16KD) { + // Add ports, even if disconnected, to ensure correct tie-offs + for (int i = 0; i < 14; i++) { + autocreate_empty_port(ci, ctx->id("ADA" + std::to_string(i))); + autocreate_empty_port(ci, ctx->id("ADB" + std::to_string(i))); + } + for (int i = 0; i < 18; i++) { + autocreate_empty_port(ci, ctx->id("DIA" + std::to_string(i))); + autocreate_empty_port(ci, ctx->id("DIB" + std::to_string(i))); + } + for (int i = 0; i < 3; i++) { + autocreate_empty_port(ci, ctx->id("CSA" + std::to_string(i))); + autocreate_empty_port(ci, ctx->id("CSB" + std::to_string(i))); + } + for (int i = 0; i < 3; i++) { + autocreate_empty_port(ci, ctx->id("CSA" + std::to_string(i))); + autocreate_empty_port(ci, ctx->id("CSB" + std::to_string(i))); + } + + autocreate_empty_port(ci, id_CLKA); + autocreate_empty_port(ci, id_CEA); + autocreate_empty_port(ci, id_OCEA); + autocreate_empty_port(ci, id_WEA); + autocreate_empty_port(ci, id_RSTA); + + autocreate_empty_port(ci, id_CLKB); + autocreate_empty_port(ci, id_CEB); + autocreate_empty_port(ci, id_OCEB); + autocreate_empty_port(ci, id_WEB); + autocreate_empty_port(ci, id_RSTB); + + ci->attrs[ctx->id("WID")] = std::to_string(wid++); + } + } + } + public: void pack() { pack_io(); + pack_ebr(); pack_constants(); pack_dram(); pack_carries(); |