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5c30093360
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195 Commits

Author SHA1 Message Date
Dan Callaghan
5c30093360 nexus: reduce OSCA worst case to 7% 
The current version of Crosslink-NX Family Data Sheet lists the high
frequency oscillator maximum frequency as 481.5MHz (that is, 7% higher
than its nominal 450MHz):

https://www.latticesemi.com/-/media/LatticeSemi/Documents/DataSheets/CrossLink/FPGA-DS-02049-1-2-1-CrossLink-NX-Family.ashx?document_id=52780

Older documents listed a wider frequency range but ±7% is the range for
production parts.
 2022-02-10 15:48:06 +11:00
gatecat
5007cd3603
Merge pull request #905 from YosysHQ/gatecat/nexus-disable-dcsroute 
nexus: Hotfix to disable unimplemented DCS routethru
 2022-02-03 21:40:30 +00:00
gatecat
84399caebe run clangformat 
Signed-off-by: gatecat <gatecat@ds0.me>
 2022-02-03 15:28:46 +00:00
gatecat
d446a29987 nexus: Hotfix to disable unimplemented DCS routethru 
Signed-off-by: gatecat <gatecat@ds0.me>
 2022-02-03 14:59:25 +00:00
Maciej Kurc
3042f9e792 Fixed correction of Nexus OSCA frequency constraints 
Signed-off-by: Maciej Kurc <mkurc@antmicro.com>
 2022-02-02 09:24:28 +01:00
Alessandro Comodi
676e56e5d4 nexus: add option to modify the mult factor of the estimate delay 
Signed-off-by: Alessandro Comodi <acomodi@antmicro.com>
 2022-02-01 11:18:17 +01:00
Maciej Kurc
e51e82d6a9 Added honoring OSCA output frequency tolerance during constraints generation 
Signed-off-by: Maciej Kurc <mkurc@antmicro.com>
 2022-01-28 13:51:10 +01:00
Maciej Kurc
18f71ace8c Removed the need for MULT36_CORE bel for implementing the MULTADDSUB9X9WIDE macro 
Signed-off-by: Maciej Kurc <mkurc@antmicro.com>
 2022-01-25 12:08:52 +01:00
Karol Gugala
500fa6f442 nexus: handle SLEWRATE in pdc 2021-12-20 15:09:03 +01:00
gatecat
ddb084e9a8 archapi: Use arbitrary rather than actual placement in predictDelay 
This makes predictDelay be based on an arbitrary belpin pair rather
than a arc of a net based on cell placement. This way 'what-if'
decisions can be evaluated without actually changing placement;
potentially useful for parallel placement.

A new helper predictArcDelay behaves like the old predictDelay to
minimise the impact on existing passes; only arches need be updated.

Signed-off-by: gatecat <gatecat@ds0.me>
 2021-12-19 17:15:15 +00:00
gatecat
a306860144 nexus: router1 speedup based on #867 
Signed-off-by: gatecat <gatecat@ds0.me>
 2021-12-17 15:06:19 +00:00
gatecat
35feb7ebba clangformat 
Signed-off-by: gatecat <gatecat@ds0.me>
 2021-12-12 13:02:39 +00:00
Maciej Kurc
41accf84ce Added checking if all FFs added to an existing cluster have matching configuration 
Signed-off-by: Maciej Kurc <mkurc@antmicro.com>
 2021-11-23 15:16:26 +01:00
Maciej Kurc
238da79e52 Fixed potential issues with carry-chain cluster expansion, added a parameter controlling the ratio of FFs that got glued to carry-chain clusters. 
Signed-off-by: Maciej Kurc <mkurc@antmicro.com>
 2021-11-22 13:13:28 +01:00
Maciej Kurc
5bc97c94ae Added appending FFs to other existing LUT cluster types (carry, widefn) 
Signed-off-by: Maciej Kurc <mkurc@antmicro.com>
 2021-11-22 10:23:24 +01:00
Maciej Kurc
086bcf0615 Added an option to control LUT and FF packing 
Signed-off-by: Maciej Kurc <mkurc@antmicro.com>
 2021-11-22 10:23:24 +01:00
Maciej Kurc
d97f93ee88 Added clustering free LUTs and FFs 
Signed-off-by: Maciej Kurc <mkurc@antmicro.com>
 2021-11-22 10:23:24 +01:00
gatecat
718ee441a0 nexus: Add resource cost overrides 
Signed-off-by: gatecat <gatecat@ds0.me>
 2021-09-24 19:19:26 +01:00
gatecat
502fcff765 nexus: LUT permutation support 
Signed-off-by: gatecat <gatecat@ds0.me>
 2021-09-24 15:26:16 +01:00
gatecat
24f13ec942
Merge pull request #822 from YosysHQ/gatecat/nexus-split-vcc 
nexus: Support for split Vcc routing
 2021-09-23 13:04:04 +01:00
gatecat
b2e9ce46f1
Merge pull request #823 from YosysHQ/gatecat/nexus-r1-tweaks 
nexus: Tweaks for router1 performance
 2021-09-22 22:04:56 +01:00
gatecat
f395ad3e27 nexus: Support for split Vcc routing 
Signed-off-by: gatecat <gatecat@ds0.me>
 2021-09-22 15:00:59 +01:00
gatecat
fed682ee5f nexus: Tweaks for router1 performance 
Signed-off-by: gatecat <gatecat@ds0.me>
 2021-09-22 14:55:10 +01:00
gatecat
53e94653f3 nexus: Fix DSP macro placement 
Signed-off-by: gatecat <gatecat@ds0.me>
 2021-09-22 13:12:21 +01:00
Maciej Kurc
80e2f8a791 Added support for syn_useioff for enabling tri-state control FF integration into IOLOGIC. 
Signed-off-by: Maciej Kurc <mkurc@antmicro.com>
 2021-09-20 11:35:36 +02:00
Maciej Kurc
8ffd30cb2d Use correct names for IDDRX1_ODDRX1 FASM features 
Signed-off-by: Maciej Kurc <mkurc@antmicro.com>
 2021-09-17 15:52:56 +02:00
Maciej Kurc
ef9eee6b15 Added automatic inference and integration of FFs driving T pin into IOLOGIC 
Signed-off-by: Maciej Kurc <mkurc@antmicro.com>
 2021-09-17 13:49:35 +02:00
Maciej Kurc
6948d41616 Added handling of the case when tri-state control net bypasses SIOLOGIC bel 
Signed-off-by: Maciej Kurc <mkurc@antmicro.com>
 2021-09-17 13:49:35 +02:00
gatecat
fd6366f027 nexus: Fix getBelGlobalBuf 
Signed-off-by: gatecat <gatecat@ds0.me>
 2021-09-02 17:23:11 +01:00
gatecat
504199e70e nexus: Fix routeing of global clocks that also drive fabric 
Signed-off-by: gatecat <gatecat@ds0.me>
 2021-07-28 15:35:19 +01:00
gatecat
5686fdcf1c nexus: Basic packer and FASM support for I/ODDR 
Signed-off-by: gatecat <gatecat@ds0.me>
 2021-07-28 13:27:02 +01:00
gatecat
d0acb1b239 nexus: Add IOLOGIC pins data 
Signed-off-by: gatecat <gatecat@ds0.me>
 2021-07-28 12:42:58 +01:00
gatecat
3d528adfdc nexus: Disable center DCC-thrus on 17k device 
Signed-off-by: gatecat <gatecat@ds0.me>
 2021-06-16 13:52:10 +01:00
gatecat
84fc2877c6 nexus: Fix FASM gen for DCC-thru 
Signed-off-by: gatecat <gatecat@ds0.me>
 2021-06-16 13:23:42 +01:00
gatecat
2ffb081442 Fixing old emails and names in copyrights 
Signed-off-by: gatecat <gatecat@ds0.me>
 2021-06-12 13:22:38 +01:00
gatecat
13c037cc08 nexus: Fix LRAM x coord 2021-06-10 10:10:26 +01:00
gatecat
dcbb322447 Remove redundant code after hashlib move 
Signed-off-by: gatecat <gatecat@ds0.me>
 2021-06-02 15:05:20 +01:00
gatecat
eca1a4cee4 Use hashlib in most remaining code 
Signed-off-by: gatecat <gatecat@ds0.me>
 2021-06-02 15:05:20 +01:00
gatecat
ecc19c2c08 Using hashlib in arches 
Signed-off-by: gatecat <gatecat@ds0.me>
 2021-06-02 15:05:19 +01:00
gatecat
579b98c596 Use hashlib for core netlist structures 
Signed-off-by: gatecat <gatecat@ds0.me>
 2021-06-02 14:27:56 +01:00
gatecat
ff72454f83 Add hash() member functions 
Signed-off-by: gatecat <gatecat@ds0.me>
 2021-06-02 14:27:56 +01:00
gatecat
1595c07260 router2: Add heatmap by routing resource type 
Signed-off-by: gatecat <gatecat@ds0.me>
 2021-05-20 14:54:23 +01:00
gatecat
ae8a910339 Revert "nexus: Enable placeAllAtOnce" 
This reverts commit 0abe425675.
 2021-05-06 15:51:54 +01:00
gatecat
c6fa1a179a nexus: Use new cluster API 
Signed-off-by: gatecat <gatecat@ds0.me>
 2021-05-06 12:25:32 +01:00
gatecat
0abe425675 nexus: Enable placeAllAtOnce 
Signed-off-by: gatecat <gatecat@ds0.me>
 2021-04-25 11:53:21 +01:00
gatecat
99298d0aba nexus: Fix some IO FASM gen 
Signed-off-by: gatecat <gatecat@ds0.me>
 2021-03-30 12:04:01 +01:00
gatecat
7ae3f636ef nexus: Fix LIFCL-17 LRAM FASM 
Signed-off-by: gatecat <gatecat@ds0.me>
 2021-03-30 11:56:07 +01:00
gatecat
a6a92f6b6b nexus: Fix default IO config 
Signed-off-by: gatecat <gatecat@ds0.me>
 2021-03-29 21:35:44 +01:00
gatecat
0b1e089547
Merge pull request #651 from YosysHQ/gatecat/nexus-vcco 
nexus: Fix bank Vcco FASM
 2021-03-29 21:32:35 +01:00
gatecat
df339f4f3c nexus: Default HF_OSC_EN to ENABLED 
Signed-off-by: gatecat <gatecat@ds0.me>
 2021-03-29 21:25:14 +01:00