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ice40: Add support for HFOSC trimming

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Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
This commit is contained in:
Sylvain Munaut 2019-05-13 12:52:30 +02:00
parent 643d7dec4c
commit e17299a1ca
1 changed files with 5 additions and 0 deletions
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5
ice40/pack.cc
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@ -1061,9 +1061,14 @@ static void pack_special(Context *ctx)
create_ice_cell(ctx, ctx->id("ICESTORM_HFOSC"), ci->name.str(ctx) + "_OSC");
packed_cells.insert(ci->name);
cell_place_unique(ctx, packed.get());
packed->params[ctx->id("TRIM_EN")] = str_or_default(ci->params, ctx->id("TRIM_EN"), "0b0");
packed->params[ctx->id("CLKHF_DIV")] = str_or_default(ci->params, ctx->id("CLKHF_DIV"), "0b00");
replace_port(ci, ctx->id("CLKHFEN"), packed.get(), ctx->id("CLKHFEN"));
replace_port(ci, ctx->id("CLKHFPU"), packed.get(), ctx->id("CLKHFPU"));
for (int i = 0; i < 10; i++) {
auto port = ctx->id("TRIM" + std::to_string(i));
replace_port(ci, port, packed.get(), port);
}
if (bool_or_default(ci->attrs, ctx->id("ROUTE_THROUGH_FABRIC"))) {
replace_port(ci, ctx->id("CLKHF"), packed.get(), ctx->id("CLKHF_FABRIC"));
} else {