diff options
| author | Sylvain Munaut <tnt@246tNt.com> | 2018-11-19 02:00:59 +0100 |
|---|---|---|
| committer | Sylvain Munaut <tnt@246tNt.com> | 2018-11-19 18:20:20 +0100 |
| commit | de8de6304f6905525fd5774d30851c0cc9fe4e37 (patch) | |
| tree | 47eb940a4da93f08baadfc574e1253a7d260c985 /ice40 | |
| parent | 271cc7be115fc28ffe82a1bade235e41a3b43896 (diff) | |
| download | nextpnr-de8de6304f6905525fd5774d30851c0cc9fe4e37.tar.gz nextpnr-de8de6304f6905525fd5774d30851c0cc9fe4e37.tar.bz2 nextpnr-de8de6304f6905525fd5774d30851c0cc9fe4e37.zip | |
ice40: Add global network output support for LFOSC/HFOSC
Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
Diffstat (limited to 'ice40')
| -rw-r--r-- | ice40/pack.cc | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/ice40/pack.cc b/ice40/pack.cc index 255dc75f..c0970735 100644 --- a/ice40/pack.cc +++ b/ice40/pack.cc @@ -725,25 +725,33 @@ static void pack_special(Context *ctx) std::unique_ptr<CellInfo> packed = create_ice_cell(ctx, ctx->id("ICESTORM_LFOSC"), ci->name.str(ctx) + "_OSC"); packed_cells.insert(ci->name); + cell_place_unique(ctx, packed.get()); replace_port(ci, ctx->id("CLKLFEN"), packed.get(), ctx->id("CLKLFEN")); replace_port(ci, ctx->id("CLKLFPU"), packed.get(), ctx->id("CLKLFPU")); - if (/*bool_or_default(ci->attrs, ctx->id("ROUTE_THROUGH_FABRIC"))*/ true) { // FIXME + if (bool_or_default(ci->attrs, ctx->id("ROUTE_THROUGH_FABRIC"))) { replace_port(ci, ctx->id("CLKLF"), packed.get(), ctx->id("CLKLF_FABRIC")); } else { replace_port(ci, ctx->id("CLKLF"), packed.get(), ctx->id("CLKLF")); + std::unique_ptr<CellInfo> gb = + create_padin_gbuf(ctx, packed.get(), ctx->id("CLKLF"), "$gbuf_" + ci->name.str(ctx) + "_lfosc"); + new_cells.push_back(std::move(gb)); } new_cells.push_back(std::move(packed)); } else if (is_sb_hfosc(ctx, ci)) { std::unique_ptr<CellInfo> packed = create_ice_cell(ctx, ctx->id("ICESTORM_HFOSC"), ci->name.str(ctx) + "_OSC"); packed_cells.insert(ci->name); + cell_place_unique(ctx, packed.get()); packed->params[ctx->id("CLKHF_DIV")] = str_or_default(ci->params, ctx->id("CLKHF_DIV"), "0b00"); replace_port(ci, ctx->id("CLKHFEN"), packed.get(), ctx->id("CLKHFEN")); replace_port(ci, ctx->id("CLKHFPU"), packed.get(), ctx->id("CLKHFPU")); - if (/*bool_or_default(ci->attrs, ctx->id("ROUTE_THROUGH_FABRIC"))*/ true) { // FIXME + if (bool_or_default(ci->attrs, ctx->id("ROUTE_THROUGH_FABRIC"))) { replace_port(ci, ctx->id("CLKHF"), packed.get(), ctx->id("CLKHF_FABRIC")); } else { replace_port(ci, ctx->id("CLKHF"), packed.get(), ctx->id("CLKHF")); + std::unique_ptr<CellInfo> gb = + create_padin_gbuf(ctx, packed.get(), ctx->id("CLKHF"), "$gbuf_" + ci->name.str(ctx) + "_hfosc"); + new_cells.push_back(std::move(gb)); } new_cells.push_back(std::move(packed)); } else if (is_sb_spram(ctx, ci)) { |