ecp5: Add IDDRX2DQA support

Signed-off-by: David Shah <dave@ds0.me>
This commit is contained in:
David Shah 2019-02-12 16:01:31 +00:00 committed by David Shah
parent 4e49ab1625
commit 6e8fbe8cdf

View File

@ -1856,6 +1856,36 @@ class Ecp5Packer
process_dqs_port(ci, pio, iol, ci->type == ctx->id("ODDRX2DQSB") ? id_DQSW : id_DQSW270);
pio->params[ctx->id("DATAMUX_MDDR")] = "IOLDO";
packed_cells.insert(cell.first);
} else if (ci->type == ctx->id("IDDRX2DQA")) {
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("IDDRX2DQA '%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, "MIDDRX_MODDRX");
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);
replace_port(ci, ctx->id("QWL"), iol, id_INFF);
iol->params[ctx->id("GSR")] = str_or_default(ci->params, ctx->id("GSR"), "DISABLED");
iol->params[ctx->id("MIDDRX.MODE")] = "MIDDRX2";
process_dqs_port(ci, pio, iol, id_DQSR90);
process_dqs_port(ci, pio, iol, id_RDPNTR2);
process_dqs_port(ci, pio, iol, id_RDPNTR1);
process_dqs_port(ci, pio, iol, id_RDPNTR0);
process_dqs_port(ci, pio, iol, id_WRPNTR2);
process_dqs_port(ci, pio, iol, id_WRPNTR1);
process_dqs_port(ci, pio, iol, id_WRPNTR0);
packed_cells.insert(cell.first);
}
}
flush_cells();