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| author | David Shah <davey1576@gmail.com> | 2018-10-01 18:38:07 +0100 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2018-10-01 18:38:07 +0100 |
| commit | 2298c89c7bbdf44ae7f519c9e27845a409c728b3 (patch) | |
| tree | 6a7ca8ade2ab611ed8b0f1188a69aa03ef53e5a9 /ecp5/cells.cc | |
| parent | ea03aafc26f8d7c6cde75b9054a508470f91965b (diff) | |
| parent | 931c78b1bbb6acbc4f9c8058ed450bf9464cb603 (diff) | |
| download | nextpnr-2298c89c7bbdf44ae7f519c9e27845a409c728b3.tar.gz nextpnr-2298c89c7bbdf44ae7f519c9e27845a409c728b3.tar.bz2 nextpnr-2298c89c7bbdf44ae7f519c9e27845a409c728b3.zip | |
Merge pull request #82 from YosysHQ/ecp5_carry
Adding ECP5 carry support
Diffstat (limited to 'ecp5/cells.cc')
| -rw-r--r-- | ecp5/cells.cc | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/ecp5/cells.cc b/ecp5/cells.cc index c7afdbc2..7e101ab2 100644 --- a/ecp5/cells.cc +++ b/ecp5/cells.cc @@ -124,6 +124,28 @@ std::unique_ptr<CellInfo> create_ecp5_cell(Context *ctx, IdString type, std::str add_port(ctx, new_cell.get(), "C", PORT_IN); add_port(ctx, new_cell.get(), "D", PORT_IN); add_port(ctx, new_cell.get(), "Z", PORT_OUT); + } else if (type == ctx->id("CCU2C")) { + new_cell->params[ctx->id("INIT0")] = "0"; + new_cell->params[ctx->id("INIT1")] = "0"; + new_cell->params[ctx->id("INJECT1_0")] = "YES"; + new_cell->params[ctx->id("INJECT1_1")] = "YES"; + + add_port(ctx, new_cell.get(), "CIN", PORT_IN); + + add_port(ctx, new_cell.get(), "A0", PORT_IN); + add_port(ctx, new_cell.get(), "B0", PORT_IN); + add_port(ctx, new_cell.get(), "C0", PORT_IN); + add_port(ctx, new_cell.get(), "D0", PORT_IN); + + add_port(ctx, new_cell.get(), "A1", PORT_IN); + add_port(ctx, new_cell.get(), "B1", PORT_IN); + add_port(ctx, new_cell.get(), "C1", PORT_IN); + add_port(ctx, new_cell.get(), "D1", PORT_IN); + + add_port(ctx, new_cell.get(), "S0", PORT_OUT); + add_port(ctx, new_cell.get(), "S1", PORT_OUT); + add_port(ctx, new_cell.get(), "COUT", PORT_OUT); + } else if (type == ctx->id("DCCA")) { add_port(ctx, new_cell.get(), "CLKI", PORT_IN); add_port(ctx, new_cell.get(), "CLKO", PORT_OUT); @@ -189,4 +211,31 @@ void lut_to_slice(Context *ctx, CellInfo *lut, CellInfo *lc, int index) replace_port(lut, ctx->id("Z"), lc, ctx->id("F" + std::to_string(index))); } +void ccu2c_to_slice(Context *ctx, CellInfo *ccu, CellInfo *lc) +{ + lc->params[ctx->id("MODE")] = "CCU2"; + lc->params[ctx->id("LUT0_INITVAL")] = str_or_default(ccu->params, ctx->id("INIT0"), "0"); + lc->params[ctx->id("LUT1_INITVAL")] = str_or_default(ccu->params, ctx->id("INIT1"), "0"); + + lc->params[ctx->id("INJECT1_0")] = str_or_default(ccu->params, ctx->id("INJECT1_0"), "YES"); + lc->params[ctx->id("INJECT1_1")] = str_or_default(ccu->params, ctx->id("INJECT1_1"), "YES"); + + replace_port(ccu, ctx->id("CIN"), lc, ctx->id("FCI")); + + replace_port(ccu, ctx->id("A0"), lc, ctx->id("A0")); + replace_port(ccu, ctx->id("B0"), lc, ctx->id("B0")); + replace_port(ccu, ctx->id("C0"), lc, ctx->id("C0")); + replace_port(ccu, ctx->id("D0"), lc, ctx->id("D0")); + + replace_port(ccu, ctx->id("A1"), lc, ctx->id("A1")); + replace_port(ccu, ctx->id("B1"), lc, ctx->id("B1")); + replace_port(ccu, ctx->id("C1"), lc, ctx->id("C1")); + replace_port(ccu, ctx->id("D1"), lc, ctx->id("D1")); + + replace_port(ccu, ctx->id("S0"), lc, ctx->id("F0")); + replace_port(ccu, ctx->id("S1"), lc, ctx->id("F1")); + + replace_port(ccu, ctx->id("COUT"), lc, ctx->id("FCO")); +} + NEXTPNR_NAMESPACE_END |