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56 Commits

Author SHA1 Message Date
Eddie Hung 0e7c55e2a7 Auto-generate .box/.lut files from specify blocks 2020-02-27 10:17:29 -08:00
Marcin Kościelnicki 89adef352f xilinx: Add support for LUT RAM on LUT4-based devices. 
There are multiple other kinds of RAMs supported on these devices, but
RAM16X1D is the only dual-port one.

Fixes #1549
 2020-02-07 09:03:22 +01:00
Marcin Kościelnicki 30854b9c7f xilinx: Add block RAM mapping for Virtex 2* and Spartan 3*. 2020-02-07 01:00:29 +01:00
Marcin Kościelnicki 95c46ccc55 xilinx: Add support for Spartan 3A DSP block RAMs. 
Part of #1550
 2020-02-07 01:00:29 +01:00
Marcin Kościelnicki a235250403 xilinx: Add xilinx_dffopt pass (#1557) 2019-12-18 13:43:43 +01:00
Marcin Kościelnicki c4bd318e76 synth_xilinx: Merge blackbox primitive libraries. 
First, there are no longer separate cell libraries for xc6s/xc7/xcu.
Manually instantiating a primitive for a "wrong" family will result
in yosys passing it straight through to the output, and it will be
either upgraded or rejected by the P&R tool.

Second, the blackbox library is expanded to cover many more families:
everything from Spartan 3 up is included.  Primitives for Virtex and
Virtex 2 are listed in the Python file as well if we ever want to
include them, but that would require having two different ISE versions
(10.1 and 14.7) available when running cells_xtra.py, and so is probably
more trouble than it's worth.

Third, the blockram blackboxes are no longer in separate files — there
is no practical reason to do so (from synthesis PoV, they are no
different from any other cells_xtra blackbox), and they needlessly
complicated the flow (among other things, merging them allows the user
to use eg. Series 7 primitives and have them auto-upgraded to
Ultrascale).

Last, since xc5v logic synthesis appears to work reasonably well
(the only major problem is lack of blockram inference support), xc5v is
now an accepted setting for the -family option.
 2019-11-06 15:11:27 +01:00
David Shah 3506eaf290 xilinx: Add URAM288 mapping for xcup 
Signed-off-by: David Shah <dave@ds0.me>
 2019-10-23 11:47:44 +01:00
David Shah 6769d31ddb xilinx: Add support for UltraScale[+] BRAM mapping 
Signed-off-by: David Shah <dave@ds0.me>
 2019-10-23 11:47:37 +01:00
Marcin Kościelnicki 7b350cacd4 xilinx: Support multiplier mapping for all families. 
This supports several older families that are not yet supported for
actual logic synthesis — the intention is to add them soon.
 2019-10-22 18:06:57 +02:00
Sean Cross 82f60ba938 Makefile: don't assume python is called `python3` 
On some architectures, notably on Windows, the official name for the
Python binary from python.org is `python`.  The build system assumes
that python is called `python3`, which breaks under this architecture.

There is already infrastructure in place to determine the name of the
Python binary when building PYOSYS.  Since Python is now always required
to build Yosys, enable this check universally which sets the
`PYTHON_EXECUTABLE` variable.

Then, reuse this variable in other Makefiles as necessary, rather than
hardcoding `python3` everywhere.

Signed-off-by: Sean Cross <sean@xobs.io>
 2019-10-19 14:04:52 +08:00
Eddie Hung aae2b9fd9c Rename abc_* names/attributes to more precisely be abc9_* 2019-10-04 11:04:10 -07:00
Eddie Hung 27167848f4 Revert "Add a xilinx_finalise pass" 
This reverts commit 23d90e0439.
 2019-09-23 19:52:55 -07:00
Eddie Hung 23d90e0439 Add a xilinx_finalise pass 2019-09-23 18:56:02 -07:00
Eddie Hung fd3b033903 Merge remote-tracking branch 'origin/master' into xc7dsp 2019-09-18 12:23:22 -07:00
Marcin Kościelnicki 09ac36da60 xilinx: Make blackbox library family-dependent. 
Fixes #1246.
 2019-09-15 13:37:24 +02:00
Eddie Hung feb3fa65a3 Merge remote-tracking branch 'origin/master' into xc7dsp 2019-09-11 00:01:31 -07:00
Marcin Kościelnicki fda94311ee synth_xilinx: Support init values on Spartan 6 flip-flops properly. 2019-09-07 16:30:43 +02:00
Eddie Hung e742478e1d Merge remote-tracking branch 'origin/master' into xc7dsp 2019-09-05 13:01:27 -07:00
Eddie Hung b7a48e3e0f Merge remote-tracking branch 'origin/master' into xc7dsp 2019-08-20 20:18:17 -07:00
Eddie Hung 8f666ebac1 Merge remote-tracking branch 'origin/master' into xaig_dff 2019-08-20 17:36:14 -07:00
Eddie Hung be9e4f1b67 Use abc_{map,unmap,model}.v 2019-08-20 12:39:11 -07:00
Eddie Hung 24c934f1af Merge branch 'eddie/abc9_refactor' into xaig_dff 2019-08-16 16:51:22 -07:00
Eddie Hung 43616e1414 Update Makefile too 2019-07-18 14:51:55 -07:00
Eddie Hung 5f00d335d4 Oops forgot these files 2019-07-15 15:03:15 -07:00
Marcin Kościelnicki ce250b341c synth_xilinx: Initial Spartan 6 block RAM inference support. 2019-07-11 14:45:48 +02:00
Eddie Hung 052060f109 Merge remote-tracking branch 'origin/master' into xaig_dff 2019-07-10 16:05:41 -07:00
Eddie Hung 699d8e3939 Merge remote-tracking branch 'origin/master' into xaig_dff 2019-07-01 10:44:42 -07:00
Eddie Hung 62ba724ccb Merge remote-tracking branch 'origin/master' into xc7mux 2019-06-29 19:39:27 -07:00
Eddie Hung dd8d264bf5 install *_nowide.lut files 2019-06-29 19:37:04 -07:00
Eddie Hung 295bb23ae0 Wrap FDRE with $__ABC_FDRE containing comb 2019-06-15 09:08:56 -07:00
Eddie Hung b63b2a0bd4 Revert "Remove wide mux inference" 
This reverts commit 738fdfe8f5.
 2019-06-14 12:50:24 -07:00
Eddie Hung d47ff7ba87 Rename +/xilinx/abc.{box,lut} -> abc_xc7.{box,lut} 2019-06-14 10:51:11 -07:00
Eddie Hung 738fdfe8f5 Remove wide mux inference 2019-06-12 09:20:46 -07:00
Eddie Hung e260150321 Add mux_map.v for wide mux 2019-06-04 09:51:47 -07:00
Eddie Hung 79fb291dbe Cleanup, call pmux2shiftx even without -nosrl 2019-04-22 12:14:37 -07:00
Eddie Hung 3ac4977b70 Add +/xilinx/cells_box.v containing models for ABC boxes 2019-04-16 11:21:03 -07:00
Eddie Hung 3e368593eb Add cells.lut to techlibs/xilinx/ 2019-04-09 14:33:37 -07:00
Eddie Hung 2ae26b986c Add techlibs/xilinx/cells.box 2019-04-09 10:58:58 -07:00
Keith Rothman 3090951d54 Changes required for VPR place and route synth_xilinx. 
Signed-off-by: Keith Rothman <537074+litghost@users.noreply.github.com>
 2019-03-01 12:02:27 -08:00
Clifford Wolf 6991c132b5 Add Xilinx RAM64X1D and RAM128X1D simulation models 2018-03-07 17:31:48 +01:00
Clifford Wolf 8a69759306 Add techlibs/xilinx/lut2lut.v 2017-07-10 12:09:05 +02:00
Clifford Wolf ff5c61b120 Added black box modules for all the 7-series design elements (as listed in ug953) 2016-03-19 11:09:10 +01:00
Clifford Wolf c475deec6c Switched to Python 3 2015-08-22 09:59:33 +02:00
Clifford Wolf 9596fe74de Another bugfix for ice40 and xilinx brams_init make rules 2015-08-16 21:39:34 +02:00
Clifford Wolf aedcfd6fd3 Fixed Makefile rules for generated share files 2015-08-16 21:15:07 +02:00
Clifford Wolf e4ef000b70 Adjust makefiles to work with out-of-tree builds 
This is based on work done by Larry Doolittle
 2015-08-12 15:04:44 +02:00
Clifford Wolf 61512b6f41 Verific build fixes 2015-05-17 08:19:52 +02:00
Clifford Wolf b00cad81d7 Towards DRAM support in Xilinx flow 2015-04-09 08:17:14 +02:00
Clifford Wolf 8520b7fbe0 Added support for initialized xilinx brams 2015-04-06 17:07:10 +02:00
Clifford Wolf 4389d9306e Added Xilinx bram black-box modules 2015-04-06 08:44:30 +02:00