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machxo2: Fix reversed interpretation of REG_SD config bits.

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William D. Jones 2021-01-31 19:05:36 -05:00 committed by gatecat
parent 0d00c10e2f
commit 2c9d4ba9ae
1 changed files with 0 additions and 6 deletions
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6
machxo2/cells.cc
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@ -157,12 +157,6 @@ void lut_to_lc(const Context *ctx, CellInfo *lut, CellInfo *lc, bool no_dff)
void dff_to_lc(const Context *ctx, CellInfo *dff, CellInfo *lc, bool pass_thru_lut) void dff_to_lc(const Context *ctx, CellInfo *dff, CellInfo *lc, bool pass_thru_lut)
{ {
// By this point, we have shown that LUT4 Z is attached to FACADE_FF DI.
// This connection will be preserved by port replacement, but the SD mux
// which selects the actual DFF input needs to be told to use the
// FACADE_SLICE DI input instead of the FACADE_SLICE M input.
lc->params[ctx->id("REG0_SD")] = std::string("0");
// FIXME: This will have to change once we support FFs with reset value of 1. // FIXME: This will have to change once we support FFs with reset value of 1.
lc->params[ctx->id("REG0_REGSET")] = std::string("RESET"); lc->params[ctx->id("REG0_REGSET")] = std::string("RESET");