diff options
| author | gatecat <gatecat@ds0.me> | 2021-11-05 15:16:43 +0000 |
|---|---|---|
| committer | gatecat <gatecat@ds0.me> | 2021-11-05 15:16:43 +0000 |
| commit | ce030a474ca28dcc309892439b0dab331c4f73b0 (patch) | |
| tree | 9e20c7b7c68f1b1d9679afb3db3c1c13620b0fe9 /ecp5 | |
| parent | 06d58e6eed90aa9c2d16d0fe6286ec59a2f880a2 (diff) | |
| download | nextpnr-ce030a474ca28dcc309892439b0dab331c4f73b0.tar.gz nextpnr-ce030a474ca28dcc309892439b0dab331c4f73b0.tar.bz2 nextpnr-ce030a474ca28dcc309892439b0dab331c4f73b0.zip | |
ecp5: Fix packing of IOFF with IODELAYs
Signed-off-by: gatecat <gatecat@ds0.me>
Diffstat (limited to 'ecp5')
| -rw-r--r-- | ecp5/cells.h | 10 | ||||
| -rw-r--r-- | ecp5/pack.cc | 4 |
2 files changed, 11 insertions, 3 deletions
diff --git a/ecp5/cells.h b/ecp5/cells.h index 4289a84a..c1165ddc 100644 --- a/ecp5/cells.h +++ b/ecp5/cells.h @@ -21,6 +21,7 @@ #define ECP5_CELLS_H #include "nextpnr.h" +#include "util.h" NEXTPNR_NAMESPACE_BEGIN @@ -49,12 +50,17 @@ inline bool is_l6mux(const BaseCtx *ctx, const CellInfo *cell) { return cell->ty inline bool is_iologic_input_cell(const BaseCtx *ctx, const CellInfo *cell) { return cell->type == ctx->id("IDDRX1F") || cell->type == ctx->id("IDDRX2F") || cell->type == ctx->id("IDDR71B") || - cell->type == ctx->id("IDDRX2DQA"); + cell->type == ctx->id("IDDRX2DQA") || + (cell->type == ctx->id("TRELLIS_FF") && bool_or_default(cell->attrs, ctx->id("syn_useioff")) && + (str_or_default(cell->attrs, ctx->id("ioff_dir"), "") != "output")); } inline bool is_iologic_output_cell(const BaseCtx *ctx, const CellInfo *cell) { return cell->type == ctx->id("ODDRX1F") || cell->type == ctx->id("ODDRX2F") || cell->type == ctx->id("ODDR71B") || - cell->type == ctx->id("ODDRX2DQA") || cell->type == ctx->id("ODDRX2DQSB") || cell->type == ctx->id("OSHX2A"); + cell->type == ctx->id("ODDRX2DQA") || cell->type == ctx->id("ODDRX2DQSB") || + cell->type == ctx->id("OSHX2A") || + (cell->type == ctx->id("TRELLIS_FF") && bool_or_default(cell->attrs, ctx->id("syn_useioff")) && + (str_or_default(cell->attrs, ctx->id("ioff_dir"), "") != "input")); } void ff_to_slice(Context *ctx, CellInfo *ff, CellInfo *lc, int index, bool driven_by_lut); diff --git a/ecp5/pack.cc b/ecp5/pack.cc index 66cb81b2..cbf882a8 100644 --- a/ecp5/pack.cc +++ b/ecp5/pack.cc @@ -2316,7 +2316,9 @@ class Ecp5Packer set_iologic_mode(iol, "IREG_OREG"); bool drives_iologic = false; for (auto user : ci->ports.at(ctx->id("Z")).net->users) - if (is_iologic_input_cell(ctx, user.cell) && user.port == ctx->id("D")) + if (is_iologic_input_cell(ctx, user.cell) && + (user.port == ctx->id("D") || + (user.cell->type == ctx->id("TRELLIS_FF") && user.port == ctx->id("DI")))) drives_iologic = true; if (drives_iologic) { // Reconnect to PIO which the packer expects later on |