diff options
| author | David Shah <davey1576@gmail.com> | 2018-06-23 11:25:32 +0200 |
|---|---|---|
| committer | David Shah <davey1576@gmail.com> | 2018-06-23 11:25:32 +0200 |
| commit | 2e6916ecabeb9b4e4df23e68378a0c4fc608c6ec (patch) | |
| tree | c919714780bf5ee032273c23e671f79fa63f3d53 /ice40/bitstream.cc | |
| parent | cb92c10b9919b53505d1805773935bb6c1679b7c (diff) | |
| download | nextpnr-2e6916ecabeb9b4e4df23e68378a0c4fc608c6ec.tar.gz nextpnr-2e6916ecabeb9b4e4df23e68378a0c4fc608c6ec.tar.bz2 nextpnr-2e6916ecabeb9b4e4df23e68378a0c4fc608c6ec.zip | |
ice40: Fix UltraPlus quasi-logic-cell bits
Signed-off-by: David Shah <davey1576@gmail.com>
Diffstat (limited to 'ice40/bitstream.cc')
| -rw-r--r-- | ice40/bitstream.cc | 54 |
1 files changed, 29 insertions, 25 deletions
diff --git a/ice40/bitstream.cc b/ice40/bitstream.cc index 61bbe27d..c46776a6 100644 --- a/ice40/bitstream.cc +++ b/ice40/bitstream.cc @@ -348,30 +348,34 @@ void write_asc(const Context *ctx, std::ostream &out) // Weird UltraPlus bits if (tile == TILE_DSP0 || tile == TILE_DSP1 || tile == TILE_DSP2 || - tile == TILE_IPCON) { - for (int lc_idx = 0; lc_idx < 8; lc_idx++) { - static const std::vector<int> ip_dsp_lut_perm = { - 4, 14, 15, 5, 6, 16, 17, 7, - 3, 13, 12, 2, 1, 11, 10, 0, - }; - for (int i = 0; i < 16; i++) - set_config(ti, config.at(y).at(x), - "LC_" + std::to_string(lc_idx), - ((i % 8) >= 4), ip_dsp_lut_perm.at(i)); - if (tile == TILE_IPCON) - set_config(ti, config.at(y).at(x), - "Cascade.IPCON_LC0" + - std::to_string(lc_idx) + - "_inmux02_5", - true); - else - set_config( - ti, config.at(y).at(x), - "Cascade.MULT" + - std::to_string(int(tile - TILE_DSP0)) + - "_LC0" + std::to_string(lc_idx) + - "_inmux02_5", - true); + tile == TILE_DSP3 || tile == TILE_IPCON) { + if (ctx->args.type == ArchArgs::UP5K && x == 25 && y == 14) { + // Mystery bits not set in this one tile + } else { + for (int lc_idx = 0; lc_idx < 8; lc_idx++) { + static const std::vector<int> ip_dsp_lut_perm = { + 4, 14, 15, 5, 6, 16, 17, 7, + 3, 13, 12, 2, 1, 11, 10, 0, + }; + for (int i = 0; i < 16; i++) + set_config(ti, config.at(y).at(x), + "LC_" + std::to_string(lc_idx), + ((i % 8) >= 4), ip_dsp_lut_perm.at(i)); + if (tile == TILE_IPCON) + set_config(ti, config.at(y).at(x), + "Cascade.IPCON_LC0" + + std::to_string(lc_idx) + + "_inmux02_5", + true); + else + set_config(ti, config.at(y).at(x), + "Cascade.MULT" + + std::to_string( + int(tile - TILE_DSP0)) + + "_LC0" + std::to_string(lc_idx) + + "_inmux02_5", + true); + } } } } @@ -458,7 +462,7 @@ void write_asc(const Context *ctx, std::ostream &out) } // Write symbols - //const bool write_symbols = 1; + // const bool write_symbols = 1; for (auto wire : ctx->getWires()) { IdString net = ctx->getWireNet(wire, false); if (net != IdString()) |