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* ecp5: Delay tweaking for lower speed gradesDavid Shah2019-06-212-3/+5
| | | | Signed-off-by: David Shah <dave@ds0.me>
* ecp5: Reduce cfg.criticalityExponent for nowDavid Shah2019-06-211-1/+1
| | | | Signed-off-by: David Shah <dave@ds0.me>
* ecp5: Improve error message for bad chars in BRAM init stringsDavid Shah2019-06-081-7/+12
| | | | Signed-off-by: David Shah <dave@ds0.me>
* Use cmake's find_library to search for pytrellis.Tobias Müller2019-05-111-28/+28
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* ecp5: Fix USRMCLK primitiveDavid Shah2019-05-101-0/+14
| | | | Signed-off-by: David Shah <dave@ds0.me>
* Add --placer option and refactor placer selectionDavid Shah2019-03-243-15/+24
| | | | Signed-off-by: David Shah <dave@ds0.me>
* clangformatDavid Shah2019-03-221-12/+15
| | | | Signed-off-by: David Shah <dave@ds0.me>
* ecp5: Speedup cell delay lookupsDavid Shah2019-03-222-1/+30
| | | | Signed-off-by: David Shah <dave@ds0.me>
* HeAP: Add PlacerHeapCfgDavid Shah2019-03-221-2/+5
| | | | Signed-off-by: David Shah <dave@ds0.me>
* HeAP: Make HeAP placer optionalDavid Shah2019-03-222-2/+25
| | | | | | | | | | | | | 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>
* HeAP: tidying upDavid Shah2019-03-221-1/+1
| | | | Signed-off-by: David Shah <dave@ds0.me>
* HeAP: Use for ECP5 as well as iCE40David Shah2019-03-221-7/+2
| | | | Signed-off-by: David Shah <dave@ds0.me>
* HeAP: Add TAUCS wrapper and integrationDavid Shah2019-03-221-1/+1
| | | | Signed-off-by: David Shah <dave@ds0.me>
* Add Python helper functions for floorplanningDavid Shah2019-03-221-0/+7
| | | | Signed-off-by: David Shah <dave@ds0.me>
* Merge pull request #243 from YosysHQ/ecp5lpfDavid Shah2019-02-282-24/+59
|\ | | | | ecp5: Improve constraint-related error handling
| * ecp5: Fix handling of CRLFs and uppercase frequency units in LPFDavid Shah2019-02-271-4/+6
| | | | | | | | Signed-off-by: David Shah <dave@ds0.me>
| * ecp5: Add an error for mixed constrained/unconstrained IODavid Shah2019-02-251-0/+18
| | | | | | | | Signed-off-by: David Shah <dave@ds0.me>
| * ecp5: Improve error handling and warning generation in LPF parserDavid Shah2019-02-252-20/+35
| | | | | | | | Signed-off-by: David Shah <dave@ds0.me>
* | ecp5: Increase ripup penaltyDavid Shah2019-02-251-1/+1
|/ | | | Signed-off-by: David Shah <dave@ds0.me>
* ecp5: DELAY fixesDavid Shah2019-02-252-16/+11
| | | | Signed-off-by: David Shah <dave@ds0.me>
* ecp5: Improve packing densityDavid Shah2019-02-252-1/+59
| | | | Signed-off-by: David Shah <dave@ds0.me>
* ecp5: Add criticality-based LUT permutationDavid Shah2019-02-254-1/+88
| | | | Signed-off-by: David Shah <dave@ds0.me>
* ecp5: Delay tuningDavid Shah2019-02-252-19/+32
| | | | Signed-off-by: David Shah <dave@ds0.me>
* ecp5: Fix global clock routing with multiclock DPRAMDavid Shah2019-02-252-10/+18
| | | | Signed-off-by: David Shah <dave@ds0.me>
* ecp5: Router performance improvementsDavid Shah2019-02-253-7/+26
| | | | Signed-off-by: David Shah <dave@ds0.me>
* ecp5: Implement budget overrides for carry chains and SLICE muxesDavid Shah2019-02-251-2/+12
| | | | Signed-off-by: David Shah <dave@ds0.me>
* ecp5: Improve delay modelDavid Shah2019-02-251-3/+4
| | | | Signed-off-by: David Shah <dave@ds0.me>
* ecp5: Speed up timing analysisDavid Shah2019-02-253-4/+8
| | | | Signed-off-by: David Shah <dave@ds0.me>
* ecp5: DELAYF/G fixesDavid Shah2019-02-241-2/+2
| | | | Signed-off-by: David Shah <dave@ds0.me>
* ecp5: Add list of supported primitivesDavid Shah2019-02-241-0/+47
| | | | Signed-off-by: David Shah <davey1576@gmail.com>
* ecp5: Connect unused DQSBUF inputs to GNDDavid Shah2019-02-241-14/+30
| | | | Signed-off-by: David Shah <davey1576@gmail.com>
* ecp5: Compute derived constraints iterativelyDavid Shah2019-02-241-52/+79
| | | | Signed-off-by: David Shah <davey1576@gmail.com>
* ecp5: Add support for 'FREQUENCY NET' and 'FREQUENCY PORT' in lpfDavid Shah2019-02-241-1/+24
| | | | Signed-off-by: David Shah <davey1576@gmail.com>
* ecp5: Derived constraint support for PLLs, clock dividers and oscillatorsDavid Shah2019-02-242-3/+119
| | | | Signed-off-by: David Shah <davey1576@gmail.com>
* ecp5: Fixes for litedramDavid Shah2019-02-242-8/+17
| | | | Signed-off-by: David Shah <davey1576@gmail.com>
* ecp5: Add DIFFRESISTOR supportDavid Shah2019-02-241-0/+2
| | | | Signed-off-by: David Shah <davey1576@gmail.com>
* ecp5: Add support for referenced inputsDavid Shah2019-02-241-5/+58
| | | | Signed-off-by: David Shah <davey1576@gmail.com>
* ecp5: Add DELAYF/DELAYG supportDavid Shah2019-02-243-13/+149
| | | | Signed-off-by: David Shah <davey1576@gmail.com>
* ecp5: Add TERMINATION supportDavid Shah2019-02-241-0/+16
| | | | Signed-off-by: David Shah <dave@ds0.me>
* ecp5: Add DDRDLLA supportDavid Shah2019-02-242-0/+42
| | | | Signed-off-by: David Shah <dave@ds0.me>
* ecp5: Add ECLKSYNCB supportDavid Shah2019-02-243-2/+34
| | | | Signed-off-by: David Shah <dave@ds0.me>
* ecp5: Add TSHX2DQSA supportDavid Shah2019-02-241-4/+5
| | | | Signed-off-by: David Shah <dave@ds0.me>
* ecp5: Add TSHX2DQA supportDavid Shah2019-02-241-1/+30
| | | | Signed-off-by: David Shah <dave@ds0.me>
* ecp5: Add IDDRX2DQA supportDavid Shah2019-02-241-0/+30
| | | | Signed-off-by: David Shah <dave@ds0.me>
* ecp5: Add ODDRX2DQSB suppportDavid Shah2019-02-241-4/+4
| | | | Signed-off-by: David Shah <dave@ds0.me>
* ecp5: Add ODDRX2DQA supportDavid Shah2019-02-241-3/+36
| | | | Signed-off-by: David Shah <dave@ds0.me>
* ecp5: Helper functions and bitstream for DQSDavid Shah2019-02-242-0/+63
| | | | Signed-off-by: David Shah <dave@ds0.me>
* ecp5: Constraint checker and placer for DQSBUFMDavid Shah2019-02-241-1/+57
| | | | Signed-off-by: David Shah <dave@ds0.me>
* ecp5: Add OSHX2A supportDavid Shah2019-02-241-0/+26
| | | | Signed-off-by: David Shah <dave@ds0.me>
* ecp5: Add IDDRX2F supportDavid Shah2019-02-241-2/+25
| | | | Signed-off-by: David Shah <dave@ds0.me>
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