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Code Activity
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680 commits

Author SHA1 Message Date
Eddie Hung
db04161eca Rework abc9's DSP48E1 model 2020-01-01 17:30:26 -08:00
Eddie Hung
543bd2de6c Update timings for Xilinx S7 cells 2019-12-30 14:36:07 -08:00
Miodrag Milanovic
8c3de1d4bd Merge remote-tracking branch 'origin/master' into iopad_default 2019-12-28 16:23:31 +01:00
Marcin Kościelnicki
13a3041030
Merge pull request #1593 from YosysHQ/mwk/dsp48a1-pmgen 
xilinx_dsp: Initial DSP48A/DSP48A1 support.
 2019-12-25 16:18:44 +01:00
Marcin Kościelnicki
dadaf7ed78 xilinx: Test our DSP48A/DSP48A1 simulation models. 2019-12-23 20:36:43 +01:00
Marcin Kościelnicki
666c6128a9 xilinx_dsp: Initial DSP48A/DSP48A1 support. 2019-12-22 20:51:14 +01:00
Miodrag Milanovic
436fea9e69 Addressed review comments 2019-12-21 20:23:23 +01:00
Miodrag Milanovic
1937091f62 iopad no op for compatibility with old scripts 2019-12-21 13:21:45 +01:00
Miodrag Milanovic
2fcf683af4 Make iopad option default for all xilinx flows 2019-12-21 11:56:41 +01:00
Eddie Hung
5986a4df40 Add abc9_arrival times for RAM{32,64}M 2019-12-20 14:06:59 -08:00
Eddie Hung
7928eb113c Add RAM{32,64}M to abc9_map.v 2019-12-20 13:41:23 -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
Marcin Kościelnicki
8b2c9f4518 xilinx: Add simulation models for remaining CLB primitives. 2019-12-19 18:04:04 +01:00
Marcin Kościelnicki
561ae1c5c4 xilinx_dffopt: Keep order of LUT inputs. 
See rationale at https://github.com/YosysHQ/yosys/pull/1557#discussion_r359196549
 2019-12-19 18:01:43 +01:00
Marcin Kościelnicki
a235250403 xilinx: Add xilinx_dffopt pass (#1557) 2019-12-18 13:43:43 +01:00
Marcin Kościelnicki
aff6ad1ce0 xilinx: Improve flip-flop handling. 
This adds support for infering more kinds of flip-flops:

- FFs with async set/reset and clock enable
- FFs with sync set/reset
- FFs with sync set/reset and clock enable

Some passes have been moved (and some added) in order for dff2dffs to
work correctly.

This gives us complete coverage of Virtex 6+ and Spartan 6 flip-flop
capabilities (though not latch capabilities).  Older FPGAs also support
having both a set and a reset input, which will be handled at a later
data.
 2019-12-18 13:43:43 +01:00
Eddie Hung
a73f96594f
Merge pull request #1574 from YosysHQ/eddie/xilinx_lutram 
xilinx: add LUTRAM rules for RAM32M, RAM64M
 2019-12-16 21:48:21 -08:00
Eddie Hung
5a00d5578c Add unconditional match blocks for force RAM 2019-12-16 13:31:15 -08:00
Eddie Hung
d910bec8e0 Update xc7/xcu bram rules 2019-12-16 13:00:58 -08:00
Eddie Hung
5d00996426 Merge branch 'eddie/xilinx_lutram' of github.com:YosysHQ/yosys into eddie/xilinx_lutram 2019-12-16 12:06:47 -08:00
Eddie Hung
7545ab3814 Populate DID/DOD even if unused 2019-12-16 11:57:04 -08:00
Eddie Hung
c4d37813cb Rename *RAM{32,64}M rules to RAM{32X2,64X1}Q 2019-12-16 10:41:13 -08:00
Diego H
f3f59910eb Removing fixed attribute value to !ramstyle rules 2019-12-15 23:51:58 -06:00
Diego H
b35559fc33 Merging attribute rules into a single match block; Adding tests 2019-12-15 23:33:09 -06:00
Diego H
266993408a Refactoring memory attribute matching based on IEEE 1364.1 and Tool specific 2019-12-13 15:43:24 -06:00
Eddie Hung
52875b0d61
Merge pull request #1533 from dh73/bram_xilinx 
Adjust Xilinx xc7/xcu BRAM min bits threshold for RAMB18E1
 2019-12-13 12:01:03 -08:00
Eddie Hung
c3262d6075 Disable RAM16X1D match rule; carry-over from LUT4 arches 2019-12-13 08:59:17 -08:00
Eddie Hung
d6514fc2e1 RAM64M8 to also have [5:0] for address 2019-12-13 08:54:19 -08:00
Eddie Hung
8925bf4b96 Add RAM32X6SDP and RAM64X3SDP modes 2019-12-12 18:52:28 -08:00
Eddie Hung
50e0c83560 Fix RAM64M model to have 6 bit address bus 2019-12-12 18:52:03 -08:00
Eddie Hung
7a9d1be97d Add memory rules for RAM16X1D, RAM32M, RAM64M 2019-12-12 17:44:59 -08:00
Diego H
751a18d7e9 Fixing citation in xc7_xcu_brams.txt file. Fixing RAMB36E1 test. 2019-12-12 17:32:58 -06:00
Eddie Hung
9ab1feeaf1 abc9_map.v: fix Xilinx LUTRAM 2019-12-12 14:56:52 -08:00
Diego H
937ec1ee78 Updating RAMB36E1 thresholds. Adding test for both RAMB18E1/RAMB36E1 2019-12-12 13:50:36 -06:00
Diego H
ab6ac8327f Merge https://github.com/YosysHQ/yosys into bram_xilinx 2019-12-12 13:40:05 -06:00
Eddie Hung
98c9ea605b techmap/aigmap of whiteboxes to occur before abc9 instead of in write_xaiger 2019-12-06 17:05:02 -08:00
Marcin Kościelnicki
fcce94010f
xilinx: Add tristate buffer mapping. (#1528) 
Fixes #1225.
 2019-12-04 09:44:00 +01:00
Marcin Kościelnicki
10014e2643
xilinx: Add models for LUTRAM cells. (#1537) 2019-12-04 06:31:09 +01:00
Marcin Kościelnicki
2badaa9adb xilinx: Add missing blackbox cell for BUFPLL. 2019-11-29 16:56:27 +01:00
Diego H
3a5a65829c Adjusting Vivado's BRAM min bits threshold for RAMB18E1 2019-11-27 12:05:04 -06:00
Marcin Kościelnicki
0466c48533 xilinx: Add simulation models for IOBUF and OBUFT. 2019-11-26 08:15:20 +01:00
Marcin Kościelnicki
6cdea425b8 clkbufmap: Add support for inverters in clock path. 2019-11-25 20:40:39 +01:00
Marcin Kościelnicki
7562e7304e xilinx: Use INV instead of LUT1 when applicable 2019-11-25 20:40:39 +01:00
Marcin Kościelnicki
7a9081440c xilinx: Add simulation models for MULT18X18* and DSP48A*. 
This adds simulation models for the following primitives:

- MULT18X18 and MULT18X18S (Virtex 2*, Spartan 3)
- MULT18X18SIO (Spartan 3E, Spartan 3A)
- DSP48A (Spartan 3A DSP) — implemented in terms of DSP48A1
- DSP48A1 (Spartan 6)
 2019-11-19 01:00:58 +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
Clifford Wolf
a3a7bb9bf7
Merge pull request #1452 from nakengelhardt/fix_dsp_mem_reg 
Call memory_dff before DSP mapping to reserve registers (fixes #1447)
 2019-10-22 17:36:54 +02:00