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ecp5: Enable OPENDRAIN on differential outputs

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This commit is contained in:
Greg Davill 2021-08-14 19:26:58 +09:30
parent dd63764331
commit 200c57f475
1 changed files with 13 additions and 1 deletions
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14
ecp5/bitstream.cc
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@ -975,8 +975,20 @@ void write_bitstream(Context *ctx, std::string base_config_file, std::string tex
iovoltage_to_str(vccio).c_str(), ci->name.c_str(ctx)); iovoltage_to_str(vccio).c_str(), ci->name.c_str(ctx));
} }
} }
if (ci->attrs.count(ctx->id("OPENDRAIN"))) if (ci->attrs.count(ctx->id("OPENDRAIN"))) {
cc.tiles[pio_tile].add_enum(pio + ".OPENDRAIN", str_or_default(ci->attrs, ctx->id("OPENDRAIN"), "OFF")); cc.tiles[pio_tile].add_enum(pio + ".OPENDRAIN", str_or_default(ci->attrs, ctx->id("OPENDRAIN"), "OFF"));
if (is_differential(ioType_from_str(iotype))) {
std::string other;
if (pio == "PIOA")
other = "PIOB";
else if (pio == "PIOC")
other = "PIOD";
else
log_error("cannot set OPENDRAIN on differential IO at location %s\n", pio.c_str());
cc.tiles[pio_tile].add_enum(other + ".OPENDRAIN", str_or_default(ci->attrs, ctx->id("OPENDRAIN"), "OFF"));
}
}
std::string datamux_oddr = str_or_default(ci->params, ctx->id("DATAMUX_ODDR"), "PADDO"); std::string datamux_oddr = str_or_default(ci->params, ctx->id("DATAMUX_ODDR"), "PADDO");
if (datamux_oddr != "PADDO") if (datamux_oddr != "PADDO")
cc.tiles[pic_tile].add_enum(pio + ".DATAMUX_ODDR", datamux_oddr); cc.tiles[pic_tile].add_enum(pio + ".DATAMUX_ODDR", datamux_oddr);