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ecp5: Add OSHX2A support

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Signed-off-by: David Shah <dave@ds0.me>
This commit is contained in:
David Shah 2019-02-12 11:27:15 +00:00 committed by David Shah
parent 8a64a72a21
commit fe2375324d
1 changed files with 26 additions and 0 deletions
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26
ecp5/pack.cc
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@ -1712,6 +1712,32 @@ class Ecp5Packer
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);
} else if (ci->type == ctx->id("OSHX2A")) {
CellInfo *pio = net_only_drives(ctx, ci->ports.at(ctx->id("Q")).net, is_trellis_io, id_I, true);
if (pio == nullptr)
log_error("OSHX2A '%s' Q output must be connected only to a top level output\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, "MIDDRX_MODDRX");
replace_port(ci, ctx->id("Q"), iol, id_IOLDO);
if (!pio->ports.count(id_IOLDO)) {
pio->ports[id_IOLDO].name = id_IOLDO;
pio->ports[id_IOLDO].type = PORT_IN;
}
replace_port(pio, id_I, pio, id_IOLDO);
set_iologic_sclk(iol, ci, ctx->id("SCLK"), false);
set_iologic_eclk(iol, ci, id_ECLK);
set_iologic_lsr(iol, ci, ctx->id("RST"), false);
replace_port(ci, ctx->id("D0"), iol, id_TXDATA0);
replace_port(ci, ctx->id("D1"), iol, id_TXDATA2);
iol->params[ctx->id("GSR")] = str_or_default(ci->params, ctx->id("GSR"), "DISABLED");
iol->params[ctx->id("MODDRX.MODE")] = "MOSHX2";
pio->params[ctx->id("DATAMUX_MDDR")] = "IOLDO";
packed_cells.insert(cell.first);
}
}
flush_cells();