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167 Commits

Author SHA1 Message Date
Eddie Hung 76e0cc8276 ecp5: cleanup unused +/ecp5/abc9_model.v 2020-05-23 08:17:40 -07:00
Marcelina Kościelnicka aee439360b Add force_downto and force_upto wire attributes. 
Fixes #2058.
 2020-05-19 01:42:40 +02:00
Eddie Hung cea614f5ae ecp5: latches_map.v if *not* -asyncprld 2020-05-14 10:33:57 -07:00
Eddie Hung fdc340db8e ecp5: synth_ecp5 to no longer need +/ecp5/abc9_{,un}map.v 2020-05-14 10:33:57 -07:00
Eddie Hung 39759d5f0e ecp5: fix rebase mistake 2020-05-14 10:33:57 -07:00
Eddie Hung 8cda29137e ecp5: TRELLIS_FF bypass path only in async mode 2020-05-14 10:33:56 -07:00
Eddie Hung 6c34945371 xilinx/ice40/ecp5: zinit requires selected wires, so select them all 2020-05-14 10:33:56 -07:00
Eddie Hung a323881e15 xilinx/ecp5/ice40: add (* abc9_flop *) to bypass-able cells 2020-05-14 10:33:56 -07:00
Eddie Hung 7cd3f4a79b abc9_ops: add -prep_bypass for auto bypass boxes; refactor 
Eliminate need for abc9_{,un}map.v in xilinx
-prep_dff_{hier,unmap} -> -prep_hier
 2020-05-14 10:33:56 -07:00
Eddie Hung 8fbb55f4ab synth_*: no need to explicitly read +/abc9_model.v 2020-05-14 10:33:56 -07:00
Eddie Hung 0d84ff3fc4 Revert "ecp5: replace ecp5_ffinit with techmap rules + dff2dffs -match-init" 
This reverts commit 8c702b6cc0221a00021a3e4661c883bb591c924b.
 2020-05-14 10:33:56 -07:00
Eddie Hung a52f779eca ecp5: (* abc9_flop *) gated behind YOSYS 2020-05-14 10:33:56 -07:00
Eddie Hung 34c7732642 ecp5: add synth_ecp5 -dff to work with -abc9 2020-05-14 10:33:56 -07:00
Eddie Hung 5d5029fa75 ecp5: replace ecp5_ffinit with techmap rules + dff2dffs -match-init 2020-05-14 10:33:56 -07:00
David Shah 95fb3cf487 ecp5: Add missing SERDES parameters 
Signed-off-by: David Shah <dave@ds0.me>
 2020-05-12 21:12:26 +01:00
Eddie Hung e6b55e8b38 synth_ice40/ecp5/xilinx: allow abc9.W to be overridden via scratchpad 2020-05-04 11:44:00 -07:00
whitequark 26cda3c247 gowin,ecp5: remove generated files in `make clean`. 2020-04-24 23:26:39 +00:00
Eddie Hung 51ae0f4e20 ecp5: ecp5_gsr to skip cells that don't have GSR parameter again 2020-04-22 17:53:08 -07:00
Eddie Hung 7f33a0294b Cleanup use of hard-coded default parameters in light of #1945 2020-04-22 12:02:30 -07:00
David Shah 1664bcda12 ecp5: Force SIGNED ports to be 1 bit 
Signed-off-by: David Shah <dave@ds0.me>
 2020-04-16 16:38:19 +01:00
Marcelina Kościelnicka 38a0c30d65 Get rid of dffsr2dff. 
This pass is a proper subset of opt_rmdff, which is called by opt, which
is called by every synth flow in the coarse part.  Thus, it never
actually does anything and can be safely removed.
 2020-04-15 16:22:37 +02:00
whitequark 93ef516d91
Merge pull request #1603 from whitequark/ice40-ram_style 
ice40/ecp5: add support for both 1364.1 and Synplify/LSE RAM/ROM attributes
 2020-04-10 14:51:01 +00:00
whitequark 763401fc82 ecp5: do not map FFRAM if explicitly requested otherwise. 2020-04-03 05:51:40 +00:00
Eddie Hung 956ecd48f7 kernel: big fat patch to use more ID::*, otherwise ID(*) 2020-04-02 09:51:32 -07:00
N. Engelhardt 282d331e7e
Merge pull request #1716 from zeldin/ecp5_fix 
ecp5: remove unused parameter from \$__ECP5_PDPW16KD
 2020-03-09 11:04:08 +01:00
N. Engelhardt 8a39a580e1 remove unused parameters 2020-03-06 16:45:36 +01:00
Eddie Hung a85c55113f synth_ecp5: use +/abc9_model.v 2020-02-27 10:17:29 -08:00
Eddie Hung d2284715fa ecp5: remove small LUT entries 2020-02-27 10:17:29 -08:00
Eddie Hung 46a89d7264 ecp5: deprecate abc9_{arrival,required} and *.{lut,box} 2020-02-27 10:17:29 -08:00
Marcus Comstedt 48a9b4f616 ecp5: Add missing parameter to \$__ECP5_PDPW16KD 2020-02-22 15:51:25 +01:00
whitequark 081d9318bc ecp5: add support for both 1364.1 and LSE RAM/ROM attributes. 
This commit tries to carefully follow the documented behavior of LSE
and Synplify. It will use `syn_ramstyle` attribute if there are any
write ports, and `syn_romstyle` attribute otherwise.
  * LSE supports both `syn_ramstyle` and `syn_romstyle`.
  * Synplify only supports `syn_ramstyle`, with same values as LSE.
  * Synplify also supports `syn_rw_conflict_logic`, which is not
    documented as supported for LSE.

Limitations of the Yosys implementation:
  * LSE/Synplify support `syn_ramstyle="block_ram,no_rw_check"`
    syntax to turn off insertion of transparency logic. There is
    currently no way to support multiple valued attributes in
    memory_bram. It is also not clear if that is a good idea, since
    it can cause sim/synth mismatches.
  * LSE/Synplify/1364.1 support block ROM inference from full case
    statements. Yosys does not currently perform this transformation.
  * LSE/Synplify propagate `syn_ramstyle`/`syn_romstyle` attributes
    from the module to the inner memories. There is currently no way
    to do this in Yosys (attrmvcp only works on cells and wires).
 2020-02-06 16:52:51 +00:00
Eddie Hung 0b0148399c synth_*: call 'opt -fast' after 'techmap' 2020-02-05 18:39:01 -08:00
Marcelina Kościelnicka 34d2fbd2f9
Add opt_lut_ins pass. (#1673) 2020-02-03 14:57:17 +01:00
Eddie Hung ce6a690d27 xilinx/ice40/ecp5: undo permuting LUT masks in lut_map 
Now done in read_aiger
 2020-01-27 13:30:27 -08:00
Eddie Hung 94ab3791ce Merge remote-tracking branch 'origin/master' into eddie/abc9_mfs 2020-01-07 15:44:18 -08:00
Eddie Hung 53aa51dc92 Re-enable &mfs for synth_{ecp5,xilinx} 2020-01-06 16:21:04 -08:00
Eddie Hung 19541640ee Merge remote-tracking branch 'origin/master' into xaig_dff 2020-01-06 09:31:28 -08:00
whitequark f8d5920a7e
Merge pull request #1604 from whitequark/unify-ram-naming 
Harmonize BRAM/LUTRAM descriptions across all of Yosys
 2020-01-02 21:06:17 +00:00
Eddie Hung b454735bea Merge remote-tracking branch 'origin/master' into xaig_dff 2020-01-02 12:44:06 -08:00
whitequark 550310e264 Harmonize BRAM/LUTRAM descriptions across all of Yosys. 
This commit:
  * renames all remaining instances of "DRAM" (which is ambiguous)
    to "LUTRAM" (which is not), finishing the work started in
    the commit 698ab9be;
  * renames memory rule files to brams.txt/lutrams.txt;
  * adds/renames script labels map_bram/map_lutram;
  * extracts where necessary script labels map_ffram and map_gates;
  * adds where necessary options -nobram/-nolutram.

The end result is that BRAM/LUTRAM/FFRAM aspects of every target
are now consistent with each other.

Per architecture:
  * anlogic: rename drams.txt→lutrams.txt, add -nolutram, add
    :map_lutram, :map_ffram, :map_gates
  * ecp5: rename bram.txt→brams.txt, lutram.txt→lutrams.txt
  * efinix: rename bram.txt→brams.txt, add -nobram, add :map_ffram,
    :map_gates
  * gowin: rename bram.txt→brams.txt, dram.txt→lutrams.txt,
    rename -nodram→-nolutram (-nodram still recognized), rename
    :bram→:map_bram, :dram→:map_lutram, add :map_ffram, :map_gates
 2020-01-01 12:30:00 +00:00
Eddie Hung f7793a2956 Missing character 2019-12-31 18:42:11 -08:00
Eddie Hung b2046a2114 Cleanup ecp5 boxes 2019-12-31 18:29:29 -08:00
Eddie Hung 79448f9be0 Update doc that "-retime" calls abc with "-dff -D 1" 2019-12-30 13:28:29 -08:00
Eddie Hung aa6d06c1b5 Revert "Revert "synth_* with -retime option now calls abc with -D 1 as well"" 
This reverts commit 6008bb7002.
 2019-12-30 13:28:29 -08:00
Eddie Hung 71906fab51 Nitpick cleanup for ecp5 2019-12-27 16:57:08 -08:00
Eddie Hung 10e82e103f
Revert "Optimise write_xaiger" 2019-12-20 12:05:45 -08:00
Eddie Hung df626ee7ab
Merge pull request #1558 from YosysHQ/eddie/xaiger_cleanup 
Optimise write_xaiger
 2019-12-19 12:24:03 -05:00
David Shah 520f1646cf
Merge pull request #1563 from YosysHQ/dave/async-prld 
ecp5: Add support for mapping PRLD FFs
 2019-12-18 19:42:17 +00:00
Eddie Hung f022645cd2 Fix bitwidth mismatch; suppresses iverilog warning 2019-12-11 13:02:07 -08:00
David Shah 184c0e796a ecp5: Add support for mapping PRLD FFs 
Signed-off-by: David Shah <dave@ds0.me>
 2019-12-07 13:04:36 +00:00