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* Merge remote-tracking branch 'origin/master' into eddie/xilinx_srlEddie Hung2019-08-301-3/+8
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| * Add (* clkbuf_sink *) to SRLC16E, reorder ports to match vendorEddie Hung2019-08-281-3/+8
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* | Merge remote-tracking branch 'origin/master' into eddie/xilinx_srlEddie Hung2019-08-287-194/+623
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| * xilinx: Add SRLC16E primitive.Marcin Kościelnicki2019-08-271-1/+21
| | | | | | | | Fixes #1331.
| * Merge branch 'master' into mwk/xilinx_bufgmapEddie Hung2019-08-261-0/+8
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| * \ Merge branch 'master' into mwk/xilinx_bufgmapEddie Hung2019-08-231-1/+1
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| * \ \ Merge branch 'master' into mwk/xilinx_bufgmapEddie Hung2019-08-231-11/+22
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| * \ \ \ Merge remote-tracking branch 'origin/master' into mwk/xilinx_bufgmapEddie Hung2019-08-235-30/+39
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| * | | | | move attributes to wiresMarcin Kościelnicki2019-08-136-283/+537
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| * | | | | minor review fixesMarcin Kościelnicki2019-08-131-1/+1
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| * | | | | review fixesMarcin Kościelnicki2019-08-131-18/+27
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| * | | | | Add clock buffer insertion pass, improve iopadmap.Marcin Kościelnicki2019-08-136-71/+220
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A few new attributes are defined for use in cell libraries: - iopad_external_pin: marks PAD cell's external-facing pin. Pad insertion will be skipped for ports that are already connected to such a pin. - clkbuf_sink: marks an input pin as a clock pin, requesting clock buffer insertion. - clkbuf_driver: marks an output pin as a clock buffer output pin. Clock buffer insertion will be skipped for nets that are already driven by such a pin. All three are module attributes that should be set to a comma-separeted list of pin names. Clock buffer insertion itself works as follows: 1. All cell ports, starting from bottom up, can be marked as clock sinks (requesting clock buffer insertion) or as clock buffer outputs. 2. If a wire in a given module is driven by a cell port that is a clock buffer output, it is in turn also considered a clock buffer output. 3. If an input port in a non-top module is connected to a clock sink in a contained cell, it is also in turn considered a clock sink. 4. If a wire in a module is driven by a non-clock-buffer cell, and is also connected to a clock sink port in a contained cell, a clock buffer is inserted in this module. 5. For the top module, a clock buffer is also inserted on input ports connected to clock sinks, optionally with a special kind of input PAD (such as IBUFG for Xilinx). 6. Clock buffer insertion on a given wire is skipped if the clkbuf_inhibit attribute is set on it.
* | | | | | Merge branch 'master' into eddie/xilinx_srlEddie Hung2019-08-261-0/+8
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| * | | | | Add undocumented featureEddie Hung2019-08-231-0/+8
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* | | | | xilinx_srl now copes with word-level flops $dff{,e}Eddie Hung2019-08-231-8/+3
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* | | | | Merge remote-tracking branch 'origin/master' into eddie/xilinx_srlEddie Hung2019-08-231-8/+16
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| * | | | Forgot oneEddie Hung2019-08-231-1/+2
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| * | | Put abc_* attributes above portEddie Hung2019-08-231-7/+14
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* | | Add variable length support to xilinx_srlEddie Hung2019-08-211-4/+3
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* | | abc9 to perform new 'map_ffs' before 'map_luts'Eddie Hung2019-08-211-3/+18
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* | | Add init supportEddie Hung2019-08-211-1/+1
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* | Merge pull request #1209 from YosysHQ/eddie/synth_xilinxEddie Hung2019-08-204-16/+19
|\ \ | | | | | | [WIP] synth xilinx renaming, as per #1184
| * | Merge remote-tracking branch 'origin/master' into eddie/synth_xilinxEddie Hung2019-08-203-6/+6
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| * | Update Makefile tooEddie Hung2019-07-181-2/+2
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| * | Work in progress for renaming labels/options in synth_xilinxEddie Hung2019-07-183-14/+17
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* | | Unify abc_carry_{in,out} into abc_carry and use port dir, as @mithroEddie Hung2019-08-191-2/+2
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* | | Attach abc_scc_break, abc_carry_{in,out} attr to ports not modulesEddie Hung2019-08-161-8/+20
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* | stoi -> atoiEddie Hung2019-08-071-1/+1
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* | RST -> RSTBRST for RAMB8BWEREddie Hung2019-07-291-3/+3
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* | xilinx: Fix missing cell name underscore in cells_map.vDavid Shah2019-07-251-2/+2
|/ | | | Signed-off-by: David Shah <dave@ds0.me>
* Merge pull request #1182 from koriakin/xc6s-bramEddie Hung2019-07-119-8/+598
|\ | | | | synth_xilinx: Initial Spartan 6 block RAM inference support.
| * synth_xilinx: Initial Spartan 6 block RAM inference support.Marcin Kościelnicki2019-07-119-8/+598
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* | xilinx: Fix the default values for FDPE/FDSE INIT attributes to match ↵Marcin Kościelnicki2019-07-112-6/+6
|/ | | | ISE/Vivado.
* Merge pull request #1180 from YosysHQ/eddie/no_abc9_retimeEddie Hung2019-07-101-5/+8
|\ | | | | Error out if -abc9 and -retime specified
| * Error out if -abc9 and -retime specifiedEddie Hung2019-07-101-5/+8
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* | Add some spacingEddie Hung2019-07-101-9/+9
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* | Add some ASCII art explaining mux decompositionEddie Hung2019-07-101-0/+21
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* | Call muxpack and pmux2shiftx before cmp2lutEddie Hung2019-07-091-9/+12
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* | Restore opt_clean back to original placeEddie Hung2019-07-091-2/+1
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* | Restore missing techmap -map +/cmp2lut.v with LUT_WIDTH=6Eddie Hung2019-07-091-0/+2
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* | Extend using A[1] to preserve don't careEddie Hung2019-07-091-1/+9
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* | Extend during mux decomposition with 1'bxEddie Hung2019-07-091-24/+3
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* | Fix typo and commentsEddie Hung2019-07-091-4/+4
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* | Merge remote-tracking branch 'origin/master' into xc7muxEddie Hung2019-07-091-19/+25
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| * Merge branch 'eddie/script_from_wire' into eddie/xc7srl_cleanupEddie Hung2019-07-021-0/+2
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| * | Cleanup SRL inference/make more consistentEddie Hung2019-06-291-19/+25
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* | | synth_xilinx to call commands of synth -coarse directlyEddie Hung2019-07-091-3/+20
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* | | Revert "synth_xilinx to call "synth -run coarse" with "-keepdc""Eddie Hung2019-07-091-2/+2
| | | | | | | | | | | | This reverts commit 7f964859ec99500e471853f5914b6e5b7c35a031.
* | | Fix spacingEddie Hung2019-07-091-1/+1
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* | | Fix spacingEddie Hung2019-07-091-1/+1
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