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* ecp5: Fix placement of DCCs to guarantee routeabilityDavid Shah2020-06-101-2/+44
| | | | Signed-off-by: David Shah <dave@ds0.me>
* ecp5: Improve global routing robustnessDavid Shah2020-05-141-0/+11
| | | | Signed-off-by: David Shah <dave@ds0.me>
* ecp5: Don't promote VCC/GND to globals even if connected to clock portDavid Shah2020-05-141-0/+2
| | | | Signed-off-by: David Shah <dave@ds0.me>
* ecp5: Use dedicated routing for ECLKs where possibleDavid Shah2020-04-141-1/+80
| | | | Signed-off-by: David Shah <dave@ds0.me>
* ecp5: Don't reroute existing globalsDavid Shah2020-01-201-1/+2
| | | | Signed-off-by: David Shah <dave@ds0.me>
* ecp5: Always promote IOLOGIC SCLK to globalDavid Shah2019-12-271-1/+3
| | | | | | Fixes #374 Signed-off-by: David Shah <dave@ds0.me>
* Revert "Merge pull request #355 from YosysHQ/ecp5-promote-lsr"David Shah2019-11-201-71/+5
| | | | | This reverts commit 6a7d1fe53d2b55e03ebe3400c0f4c9e5741ed2e1, reversing changes made to c3d4117a219570f0a132ae4f810dec961811311a.
* ecp5: Add support for promotion of LSRs to global networkDavid Shah2019-11-191-5/+71
| | | | Signed-off-by: David Shah <dave@ds0.me>
* ecp5: Add support for clock gating with DCCADavid Shah2019-08-311-38/+58
| | | | Signed-off-by: David Shah <dave@ds0.me>
* Rename clock restriction attribute to "noglobal"Arnaud Durand2019-08-241-2/+2
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* Restrict clock promotion to globalArnaud Durand2019-08-221-0/+3
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* ecp5: Add --out-of-context for building hard macrosDavid Shah2019-08-071-1/+5
| | | | Signed-off-by: David Shah <dave@ds0.me>
* ecp5: New Property interfaceDavid Shah2019-08-051-2/+2
| | | | Signed-off-by: David Shah <dave@ds0.me>
* ecp5: Use an attribute to store is_globalDavid Shah2019-06-071-1/+1
| | | | Signed-off-by: David Shah <dave@ds0.me>
* ecp5: Fix global clock routing with multiclock DPRAMDavid Shah2019-02-251-7/+12
| | | | Signed-off-by: David Shah <dave@ds0.me>
* ecp5: Add IOLOGIC timing and bitstream; ODDR workingDavid Shah2018-12-141-0/+2
| | | | Signed-off-by: David Shah <dave@ds0.me>
* ecp5: Pre-place PLLs and use dedicated routes into globalsDavid Shah2018-11-301-2/+4
| | | | Signed-off-by: David Shah <dave@ds0.me>
* ecp5: DCU clocking fixesDavid Shah2018-11-151-2/+8
| | | | Signed-off-by: David Shah <dave@ds0.me>
* ecp5: EXTREFB fixesDavid Shah2018-11-151-0/+2
| | | | Signed-off-by: David Shah <dave@ds0.me>
* ecp5: remove debug and clangformatDavid Shah2018-11-151-5/+6
| | | | Signed-off-by: David Shah <dave@ds0.me>
* ecp5: Prefer DCCs with dedicated routing when placing DCCsDavid Shah2018-11-151-0/+43
| | | | Signed-off-by: David Shah <dave@ds0.me>
* ecp5: Copy clock constraints during global promotionDavid Shah2018-11-121-0/+7
| | | | Signed-off-by: David Shah <dave@ds0.me>
* ecp5: Add PLL supportDavid Shah2018-10-311-3/+10
| | | | Signed-off-by: David Shah <dave@ds0.me>
* ecp5: Separate global promotion and routingDavid Shah2018-10-311-32/+83
| | | | Signed-off-by: David Shah <dave@ds0.me>
* ecp5: Optimise DCC placementDavid Shah2018-10-141-3/+12
| | | | Signed-off-by: David Shah <davey1576@gmail.com>
* ecp5: Small DRAM routing fixesDavid Shah2018-10-011-1/+15
| | | | Signed-off-by: David Shah <davey1576@gmail.com>
* ecp5: Debugging DRAM packingDavid Shah2018-10-011-1/+1
| | | | Signed-off-by: David Shah <davey1576@gmail.com>
* ecp5: Use ArchNetInfo to mark global nets to ignoreDavid Shah2018-09-291-0/+1
| | | | Signed-off-by: David Shah <davey1576@gmail.com>
* clangformatDavid Shah2018-09-291-19/+15
| | | | Signed-off-by: David Shah <davey1576@gmail.com>
* ecp5: Fix global buffer connectivity and timingDavid Shah2018-09-291-0/+2
| | | | Signed-off-by: David Shah <davey1576@gmail.com>
* ecp5: Fix handling of global to fabric connectionsDavid Shah2018-09-291-3/+20
| | | | Signed-off-by: David Shah <davey1576@gmail.com>
* ecp5: Remove excessive debugging from global promoterDavid Shah2018-09-291-9/+1
| | | | Signed-off-by: David Shah <davey1576@gmail.com>
* ecp5: Fixing global to global user routingDavid Shah2018-09-291-6/+13
| | | | Signed-off-by: David Shah <davey1576@gmail.com>
* ecp5: Fixing global router bugsDavid Shah2018-09-291-3/+14
| | | | Signed-off-by: David Shah <davey1576@gmail.com>
* ecp5: Integrate global router and debug namingDavid Shah2018-09-291-2/+4
| | | | Signed-off-by: David Shah <davey1576@gmail.com>
* ecp5: Adding main global promoter/router functionDavid Shah2018-09-291-21/+55
| | | | Signed-off-by: David Shah <davey1576@gmail.com>
* ecp5: Fix globals.cc following API updateDavid Shah2018-09-291-1/+1
| | | | Signed-off-by: David Shah <davey1576@gmail.com>
* ecp5: Add SPINE routing to global routerDavid Shah2018-09-291-1/+17
| | | | Signed-off-by: David Shah <davey1576@gmail.com>
* ecp5: Adding DCCA insertion functionDavid Shah2018-09-291-0/+29
| | | | Signed-off-by: David Shah <davey1576@gmail.com>
* ecp5: Add DCC Bels, fix global router post-rebaseDavid Shah2018-09-291-7/+7
| | | | Signed-off-by: David Shah <davey1576@gmail.com>
* ecp5: Working on global routerDavid Shah2018-09-291-0/+88
| | | | Signed-off-by: David Shah <davey1576@gmail.com>
* ecp5: Global routing algorithm up to TAPsDavid Shah2018-09-291-10/+75
| | | | Signed-off-by: David Shah <davey1576@gmail.com>
* ecp5: Clock usage counter functionDavid Shah2018-09-291-1/+34
| | | | Signed-off-by: David Shah <davey1576@gmail.com>
* ecp5: Helper function and arch tweaks for global routerDavid Shah2018-09-291-0/+52
Signed-off-by: David Shah <davey1576@gmail.com>