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authorWilliam D. Jones <thor0505@comcast.net>2021-01-31 19:05:36 -0500
committergatecat <gatecat@ds0.me>2021-02-12 10:36:59 +0000
commit2c9d4ba9ae8123e6aea2a690ec03b052ea7a53af (patch)
tree180dad5a4c3b64f345bcd09975ea021f1e575bb5 /machxo2/cells.cc
parent0d00c10e2f3dfdc188f598e17c8aa89a9c502f55 (diff)
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machxo2: Fix reversed interpretation of REG_SD config bits.
Diffstat (limited to 'machxo2/cells.cc')
-rw-r--r--machxo2/cells.cc6
1 files changed, 0 insertions, 6 deletions
diff --git a/machxo2/cells.cc b/machxo2/cells.cc
index 6b6aeda2..dd673c38 100644
--- a/machxo2/cells.cc
+++ b/machxo2/cells.cc
@@ -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)
{
- // 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.
lc->params[ctx->id("REG0_REGSET")] = std::string("RESET");