Commit Graph

362 Commits

Author SHA1 Message Date
David Shah
df8688c227 ecp5: Delay tweaking for lower speed grades
Signed-off-by: David Shah <dave@ds0.me>
2019-06-21 10:55:23 +01:00
David Shah
7ae64b9477 ecp5: Reduce cfg.criticalityExponent for now
Signed-off-by: David Shah <dave@ds0.me>
2019-06-21 10:20:46 +01:00
David Shah
187db92b05 ecp5: Improve error message for bad chars in BRAM init strings
Signed-off-by: David Shah <dave@ds0.me>
2019-06-08 10:52:37 +01:00
Tobias Müller
ea91ea163e Use cmake's find_library to search for pytrellis. 2019-05-11 12:39:50 +02:00
David Shah
12f375a239 ecp5: Fix USRMCLK primitive
Signed-off-by: David Shah <dave@ds0.me>
2019-05-10 18:51:45 +01:00
David Shah
02ae21d8fc Add --placer option and refactor placer selection
Signed-off-by: David Shah <dave@ds0.me>
2019-03-24 11:10:20 +00:00
David Shah
23f2fff1c8 clangformat
Signed-off-by: David Shah <dave@ds0.me>
2019-03-22 10:39:05 +00:00
David Shah
fcc3bb1495 ecp5: Speedup cell delay lookups
Signed-off-by: David Shah <dave@ds0.me>
2019-03-22 10:31:54 +00:00
David Shah
bd12c0a486 HeAP: Add PlacerHeapCfg
Signed-off-by: David Shah <dave@ds0.me>
2019-03-22 10:31:54 +00:00
David Shah
7142db28a8 HeAP: Make HeAP placer optional
A CMake option 'BUILD_HEAP' (default on) configures building of the
HeAP placer and the associated Eigen3 dependency.

Default for the iCE40 is SA placer, with --heap-placer to use HeAP

Default for the ECP5 is HeAP placer, as SA placer can take 1hr+ for
large ECP5 designs and HeAP tends to give better QoR. --sa-placer can
be used to use SA instead, and auto-fallback to SA if HeAP not built.

Signed-off-by: David Shah <dave@ds0.me>
2019-03-22 10:31:54 +00:00
David Shah
2e2f44c82e HeAP: tidying up
Signed-off-by: David Shah <dave@ds0.me>
2019-03-22 10:31:54 +00:00
David Shah
8295f997ae HeAP: Use for ECP5 as well as iCE40
Signed-off-by: David Shah <dave@ds0.me>
2019-03-22 10:31:54 +00:00
David Shah
ea56dc9d08 HeAP: Add TAUCS wrapper and integration
Signed-off-by: David Shah <dave@ds0.me>
2019-03-22 10:31:54 +00:00
David Shah
493d6c3fb9 Add Python helper functions for floorplanning
Signed-off-by: David Shah <dave@ds0.me>
2019-03-22 10:31:54 +00:00
David Shah
0279f63710
Merge pull request #243 from YosysHQ/ecp5lpf
ecp5: Improve constraint-related error handling
2019-02-28 15:01:42 +00:00
David Shah
8744c46ea0 ecp5: Fix handling of CRLFs and uppercase frequency units in LPF
Signed-off-by: David Shah <dave@ds0.me>
2019-02-27 22:54:32 +00:00
David Shah
a2d906a3fd ecp5: Increase ripup penalty
Signed-off-by: David Shah <dave@ds0.me>
2019-02-25 18:08:26 +00:00
David Shah
ba4150aecc ecp5: Add an error for mixed constrained/unconstrained IO
Signed-off-by: David Shah <dave@ds0.me>
2019-02-25 14:45:43 +00:00
David Shah
81b176e150 ecp5: Improve error handling and warning generation in LPF parser
Signed-off-by: David Shah <dave@ds0.me>
2019-02-25 14:40:38 +00:00
David Shah
df79d94944 ecp5: DELAY fixes
Signed-off-by: David Shah <dave@ds0.me>
2019-02-25 11:49:25 +00:00
David Shah
95a85c8ea7 ecp5: Improve packing density
Signed-off-by: David Shah <dave@ds0.me>
2019-02-25 11:49:25 +00:00
David Shah
a0fa164399 ecp5: Add criticality-based LUT permutation
Signed-off-by: David Shah <dave@ds0.me>
2019-02-25 11:49:25 +00:00
David Shah
f363dd2d3c ecp5: Delay tuning
Signed-off-by: David Shah <dave@ds0.me>
2019-02-25 11:49:25 +00:00
David Shah
4ec2bd1e5d ecp5: Fix global clock routing with multiclock DPRAM
Signed-off-by: David Shah <dave@ds0.me>
2019-02-25 11:49:25 +00:00
David Shah
55b0b60d9d ecp5: Router performance improvements
Signed-off-by: David Shah <dave@ds0.me>
2019-02-25 11:49:25 +00:00
David Shah
f5b11ce075 ecp5: Implement budget overrides for carry chains and SLICE muxes
Signed-off-by: David Shah <dave@ds0.me>
2019-02-25 11:49:25 +00:00
David Shah
af3ff143be ecp5: Improve delay model
Signed-off-by: David Shah <dave@ds0.me>
2019-02-25 11:49:25 +00:00
David Shah
998d055ea7 ecp5: Speed up timing analysis
Signed-off-by: David Shah <dave@ds0.me>
2019-02-25 11:49:25 +00:00
David Shah
64dc453f12 ecp5: DELAYF/G fixes
Signed-off-by: David Shah <dave@ds0.me>
2019-02-24 13:53:06 +00:00
David Shah
15314538f8 ecp5: Add list of supported primitives
Signed-off-by: David Shah <davey1576@gmail.com>
2019-02-24 10:28:25 +01:00
David Shah
0d83f3fcfe ecp5: Connect unused DQSBUF inputs to GND
Signed-off-by: David Shah <davey1576@gmail.com>
2019-02-24 10:28:25 +01:00
David Shah
ab50a6ef54 ecp5: Compute derived constraints iteratively
Signed-off-by: David Shah <davey1576@gmail.com>
2019-02-24 10:28:25 +01:00
David Shah
0bc88e622c ecp5: Add support for 'FREQUENCY NET' and 'FREQUENCY PORT' in lpf
Signed-off-by: David Shah <davey1576@gmail.com>
2019-02-24 10:28:25 +01:00
David Shah
ae6c1170ef ecp5: Derived constraint support for PLLs, clock dividers and oscillators
Signed-off-by: David Shah <davey1576@gmail.com>
2019-02-24 10:28:25 +01:00
David Shah
e50ab2106f ecp5: Fixes for litedram
Signed-off-by: David Shah <davey1576@gmail.com>
2019-02-24 10:28:25 +01:00
David Shah
3b50b57f05 ecp5: Add DIFFRESISTOR support
Signed-off-by: David Shah <davey1576@gmail.com>
2019-02-24 10:28:25 +01:00
David Shah
f960139768 ecp5: Add support for referenced inputs
Signed-off-by: David Shah <davey1576@gmail.com>
2019-02-24 10:28:25 +01:00
David Shah
817ba5a4b9 ecp5: Add DELAYF/DELAYG support
Signed-off-by: David Shah <davey1576@gmail.com>
2019-02-24 10:28:25 +01:00
David Shah
fd52db813f ecp5: Add TERMINATION support
Signed-off-by: David Shah <dave@ds0.me>
2019-02-24 10:28:25 +01:00
David Shah
491d64293d ecp5: Add DDRDLLA support
Signed-off-by: David Shah <dave@ds0.me>
2019-02-24 10:28:25 +01:00
David Shah
68abcb365a ecp5: Add ECLKSYNCB support
Signed-off-by: David Shah <dave@ds0.me>
2019-02-24 10:28:25 +01:00
David Shah
49e9453820 ecp5: Add TSHX2DQSA support
Signed-off-by: David Shah <dave@ds0.me>
2019-02-24 10:28:25 +01:00
David Shah
82ad10a395 ecp5: Add TSHX2DQA support
Signed-off-by: David Shah <dave@ds0.me>
2019-02-24 10:28:25 +01:00
David Shah
6e8fbe8cdf ecp5: Add IDDRX2DQA support
Signed-off-by: David Shah <dave@ds0.me>
2019-02-24 10:28:25 +01:00
David Shah
4e49ab1625 ecp5: Add ODDRX2DQSB suppport
Signed-off-by: David Shah <dave@ds0.me>
2019-02-24 10:28:25 +01:00
David Shah
6f203dfd7b ecp5: Add ODDRX2DQA support
Signed-off-by: David Shah <dave@ds0.me>
2019-02-24 10:28:25 +01:00
David Shah
4402361246 ecp5: Helper functions and bitstream for DQS
Signed-off-by: David Shah <dave@ds0.me>
2019-02-24 10:28:25 +01:00
David Shah
eb45956d0e ecp5: Constraint checker and placer for DQSBUFM
Signed-off-by: David Shah <dave@ds0.me>
2019-02-24 10:28:25 +01:00
David Shah
fe2375324d ecp5: Add OSHX2A support
Signed-off-by: David Shah <dave@ds0.me>
2019-02-24 10:28:25 +01:00
David Shah
8a64a72a21 ecp5: Add IDDRX2F support
Signed-off-by: David Shah <dave@ds0.me>
2019-02-24 10:28:25 +01:00