* ng-ultra: new architecture
* Implementation as in D2 deliverable
* Support for nxdesignsuite-24.0.0.0-20240429T102300
* Save memory by directly outputing json
* Add support for bidirectional IOs
* cleanup
* Create BFRs properly
* Add IOM insertion
* Cleanup
* Block certain pips depending of DDFR mode
* Add LUT bypass to improve routability
* Add bypass for CSC mode of GCK
* Fix IOM case
* Initial memory support
* Better RF/XRF handling
* fix
* RF placement and legalization
* Disconnect non available ports for NX_RAM
* cleanup
* Add RFB/RAM context support for latest release
* Remove ports that must not be used
* Proper port used only on RFB
* Add structure for clock sinks
* Use cell type where applicable
* Add clock sinks for other cell types
* Validation check fixes
* Commented too restrictive placement
* Added more crossbar wire type
* Hande IO termination input
* Fail early due to NX tools limitation for now
* Validations and fixes for RAM I/Os
* Fix for latest version of tools
* Use ctx->idf where applicable
* warn if RAM ports are not actually used
* Fix IOM packing
* Fix CY packing
* Change how constants are handled on CY
* Post placement optimization for CY
* Address comments for PR
* pack and export GCK, WFG and PLL
* Cover more global routing cases
* Constraing to location if provided
* Place at LOC
* Pack and export DSP
* wip
* wip
* notes
* wip
* wip
* Validate DSPs
* DSP cascading
* Check mandatory parameters for DSP
* existing gck
* wip
* export all the rest for bitstream
* CDC packing
* add more sinks
* place FIFO
* map rest of FIFO ports
* enable pll by default
* cleanup
* Initial XLUT support
* Fix statistics
* Properly duplicate GCKs
* RRSTO and WRSTO are not used on XFIFO
* Fix for latest version of JSON format
* Implement GCK limitations
* cleanup
* cleanup
* Add more signals and use lowskew name
* cleanup code a bit
* Fix wfb
* detect cascaded GCKs
* Handle DFR
* Route dfr clock properly
* Cleanup
* Cleanup bitstream code
* Review issues addressed
* Move helper routines
* Expose private members for unit tests
* cleanup
* remove scale factor
* make all location helper arrays static
* Addressed review comments
* Support post-routing CSC and SCC
* Support NX_BFF
* Place CSS and SCC only on allowed locations
* Support latest Impulse
* ng_ultra: Expand bounding box further for left-edge IO
Signed-off-by: gatecat <gatecat@ds0.me>
* Export all IO parameters in bitstream
* Handle new CSV order or parameters and additional validation
* Add some more undocumented values for CSV
* Support for old and new CSV formats
* Initial DDFR support
* Display warning message once per file
* Address review issues
* Fix crash on memory access
* Make boundbox fit NG-Ultra internal design
* Update attributes after dff rewrite
* Implement basic NG-Ultra LUT-DFF unit tests
* Always use first seen xbar input
Signed-off-by: gatecat <gatecat@ds0.me>
* Simplified crossbar pip detection
* Change order to prevent issues with some unconnected constants
* Pack LUT and multiple DFF in stripe
* Place DFF chains
* Improve large DFF chains
* Rename to pack_dff_chains
* Better use XLUTs when possible
* pack output DFF together with XLUT
* option to disable XLUT optimiziations
* Make more optimizations optional
* fix to use pre-increment
* GCK for lowskew signals
* Bugfix for nets that are not part of lowskew network
* Fix bitstream export for PLL cell
* Remove separate route lowskew
* Allow WFG mode 2
* Merge inverter into GCK
* Add CSC per TILE when needed
* Improve reusage of existing cell for CSC
* Take preferred CSC
* Cleanup
* When in place CSC size not important
* Cleanup
* Reset and Load restriction
* make csc optimisation optional
* Proper count for IO resources
* Detect when there is no next cell for DSP chain
* Do not incorporate loops in XLUT
* Check if output exists
* Update copyright for delivery
* Make building NG-Ultra chip database optional, follow filename convention
* Ported drawing code to new API
* Update expandBoundingBox for NG-Ultra
* Copyright and license update
* Add README information
* cleanup and constids
* Using ctx->idf where applicable
* remove if_using_basecluster
* refactor extra data usage
* refactor to use create_cell_ptr only
* optimized getCSC
* optimize critical path a bit
* clangformat
* disable clangformat where applicable
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Signed-off-by: gatecat <gatecat@ds0.me>
Co-authored-by: Lofty <dan.ravensloft@gmail.com>
Co-authored-by: gatecat <gatecat@ds0.me>
* Gowin. Add IODELAY.
Input/Output delay (IODELAY) is programmable delay uint in IO block.
This delay line is enabled before/after the IO pad and allows the signal
to be delayed statically or dynamically during 0-127 stages each lasting
from 18 to 30 picoseconds depending on the chip family.
Signed-off-by: YRabbit <rabbit@yrabbit.cyou>
* Gowin. Replacing assertions with log_error.
Signed-off-by: YRabbit <rabbit@yrabbit.cyou>
---------
Signed-off-by: YRabbit <rabbit@yrabbit.cyou>
Add sampling part to IO blocks (input only). This edge detector will
allow to dynamically adjust DDR decoding window in the future.
Signed-off-by: YRabbit <rabbit@yrabbit.cyou>
* Extend Himbaechel API with gfx drawing methods
* Add bel drawing in example uarch
* changed API and added tile wire id in db
* extend API so we can distinguish CLK wires
* added bit more wires
* less horrid way of handling gfx ids
* loop wire range
* removed not needed brackets
* bump database version to 5
* Removed not used GfxFlags
* Gowin. FFs placement.
* Allow clusters to be created from FFs and LUTs;
* Immediately create pass-through LUTs from free LUTs adjacent to FF - at the same time ensure alternating use of LUT inputs;
* In case of constant networks, such pass-through LUTs are disconnected from networks altogether;
* Allow FF to be placed directly into SSRAM slides - this is useful when using synchronous reading.
Signed-off-by: YRabbit <rabbit@yrabbit.cyou>
* Gowin. Fix aux name creation
Signed-off-by: YRabbit <rabbit@yrabbit.cyou>
* Gowin. Use I3 for pass-trough LUTs
Signed-off-by: YRabbit <rabbit@yrabbit.cyou>
---------
Signed-off-by: YRabbit <rabbit@yrabbit.cyou>
