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| author | David Shah <dave@ds0.me> | 2019-02-12 11:18:14 +0000 |
|---|---|---|
| committer | David Shah <davey1576@gmail.com> | 2019-02-24 10:28:25 +0100 |
| commit | 8a64a72a2127d51cf5b90d9083d2ff0c49a6b30e (patch) | |
| tree | 95f356624a8ad2b608fab819b20ee78776427467 | |
| parent | 52d1954d967489e6fe0514e9243bb6d2f1f45e64 (diff) | |
| download | nextpnr-8a64a72a2127d51cf5b90d9083d2ff0c49a6b30e.tar.gz nextpnr-8a64a72a2127d51cf5b90d9083d2ff0c49a6b30e.tar.bz2 nextpnr-8a64a72a2127d51cf5b90d9083d2ff0c49a6b30e.zip | |
ecp5: Add IDDRX2F support
Signed-off-by: David Shah <dave@ds0.me>
| -rw-r--r-- | ecp5/pack.cc | 27 |
1 files changed, 25 insertions, 2 deletions
diff --git a/ecp5/pack.cc b/ecp5/pack.cc index 0b51a921..09a7f358 100644 --- a/ecp5/pack.cc +++ b/ecp5/pack.cc @@ -1690,6 +1690,28 @@ class Ecp5Packer iol->params[ctx->id("ODDRXN.MODE")] = "ODDRX2"; pio->params[ctx->id("DATAMUX_ODDR")] = "IOLDO"; packed_cells.insert(cell.first); + } else if (ci->type == ctx->id("IDDRX2F")) { + CellInfo *pio = net_driven_by(ctx, ci->ports.at(ctx->id("D")).net, is_trellis_io, id_O); + if (pio == nullptr || ci->ports.at(ctx->id("D")).net->users.size() > 1) + log_error("IDDRX2F '%s' D input must be connected only to a top level input\n", + ci->name.c_str(ctx)); + CellInfo *iol; + if (pio_iologic.count(pio->name)) + iol = pio_iologic.at(pio->name); + else + iol = create_pio_iologic(pio, ci); + set_iologic_mode(iol, "IDDRXN"); + replace_port(ci, ctx->id("D"), iol, id_PADDI); + set_iologic_sclk(iol, ci, ctx->id("SCLK"), true); + set_iologic_eclk(iol, ci, id_ECLK); + set_iologic_lsr(iol, ci, ctx->id("RST"), true); + replace_port(ci, ctx->id("Q0"), iol, id_RXDATA0); + replace_port(ci, ctx->id("Q1"), iol, id_RXDATA1); + replace_port(ci, ctx->id("Q2"), iol, id_RXDATA2); + replace_port(ci, ctx->id("Q3"), iol, id_RXDATA3); + iol->params[ctx->id("GSR")] = str_or_default(ci->params, ctx->id("GSR"), "DISABLED"); + iol->params[ctx->id("IDDRXN.MODE")] = "IDDRX2"; + packed_cells.insert(cell.first); } } flush_cells(); @@ -1729,11 +1751,12 @@ class Ecp5Packer continue; ci->attrs[ctx->id("BEL")] = ctx->getBelName(bel).str(ctx); make_eclk(ci->ports.at(id_CLKI), ci, bel, eclk.first.first); - break; + goto done; } - continue; } } + done: + continue; } } |