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ecp5: Add IDDRX2F support

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Signed-off-by: David Shah <dave@ds0.me>
This commit is contained in:
David Shah 2019-02-12 11:18:14 +00:00 committed by David Shah
parent 52d1954d96
commit 8a64a72a21
1 changed files with 25 additions and 2 deletions
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27
ecp5/pack.cc
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@ -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;
}
}