7c667eeba3
ecp5: Prioritise ECLK usage when placing PLLs
...
Signed-off-by: gatecat <gatecat@ds0.me>
2026-07-17 12:27:24 +02:00
8624a48bcf
ecp5: Make fabric routed ECLK an error
...
Signed-off-by: gatecat <gatecat@ds0.me>
2026-07-17 12:27:24 +02:00
261152be8a
ecp5: IDDRX2F has ALIGNWD too
...
Signed-off-by: gatecat <gatecat@ds0.me>
2026-07-14 14:53:17 +02:00
33e1c9033b
Improve file open error messages ( #1700 )
...
Define open_(o|i)fstream_and_log_error in log.h to:
- quote 'filename'
- add error cause to easier troubleshoot
- use existing consistent string style
- easily allows OS specific message
Introduce it when file are opened and add it where error message
was missing.
2026-04-19 16:41:47 +02:00
7de80fbb9c
ecp5: Fix placement of LUT permutation switchboxes
...
Signed-off-by: gatecat <gatecat@ds0.me>
2026-04-15 14:41:04 +02:00
4e9debe4e5
ecp5: Fix timing for DCU clock outputs
...
Signed-off-by: gatecat <gatecat@ds0.me>
2026-04-15 09:24:33 +02:00
ae7843fbf0
ecp5: Fix case of one net driving multiple DCSs
...
Signed-off-by: gatecat <gatecat@ds0.me>
2026-04-09 10:34:22 +02:00
5281b8d8af
Revert "ecp5: Also promote EBRD_CLK to global"
...
This reverts commit e359390ad3
2026-03-21 15:04:04 +01:00
e359390ad3
ecp5: Also promote EBRD_CLK to global
...
Signed-off-by: gatecat <gatecat@ds0.me>
2026-03-21 14:36:59 +01:00
60f02a200d
ecp5/pack: split carry chains by re-driving CIN from S0
...
When splitting a carry chain the original COUT -> carry -> CIN
was preserved. This was not routable if the carry chain is split.
Instead now the COUT is wired to a feed out CC2C whose `S0` port
is the start of the new carry chain.
2026-03-11 14:04:50 +01:00
d065288979
ecp5: Fix DCC selection ( #1644 )
...
Signed-off-by: gatecat <gatecat@ds0.me>
2026-02-20 15:21:57 +01:00
24785a3219
ecp5: Fix placement of ECLKSYNCB driving PLL CLKFB ( #1512 )
...
* ecp5: Fix placement of ECLKSYNCB driving PLL CLKFB
Signed-off-by: gatecat <gatecat@ds0.me>
* ecp5: Improve PLL placement algorithm slightly
Signed-off-by: gatecat <gatecat@ds0.me>
---------
Signed-off-by: gatecat <gatecat@ds0.me>
2025-07-08 08:50:12 +02:00
226a2dfdb4
clangformat
...
Signed-off-by: gatecat <gatecat@ds0.me>
2025-05-20 13:19:52 +02:00
182b77a2e8
ecp5: fix frequency constraint on bypassed PLL outputs ( #1475 )
...
Each PLL output in ECP5 can be bypassed, which turns it into a wire
that passes through ICLK unmodified. When an outputs mux is set to
REFCLK, disregard other PLL configuration and copy the input constraint
over unchanged.
2025-05-06 15:55:38 +02:00
ede78f3730
ecp5: Fix constant and inverted CEMUX
...
Signed-off-by: gatecat <gatecat@ds0.me>
2025-01-27 11:46:25 +01:00
e12093201a
CMake: Add include guards when IMPORT_BBA_FILES is used ( #1438 )
2025-01-23 10:54:37 +01:00
90d746f79e
CMake: add support for exporting and importing .bba files.
...
This is useful for certain cross-compilation workloads, and to cache
rarely changing build products.
To use this functionality, build e.g. as follows:
cmake . -B build-export -DEXPORT_BBA_FILES=../bba-files -DARCH=all
cmake --build build-export -t nextpnr-all-bba
cmake . -B build-import -DIMPORT_BBA_FILES=../bba-files -DARCH=all
cmake --build build-import
2025-01-23 07:49:12 +00:00
cd7f7c12f1
CMake: refactor architecture-specific build system parts.
...
Two user-visible changes were made:
* `-DUSE_RUST` is replaced with `-DBUILD_RUST`, by analogy with
`-DBUILD_PYTHON`
* `-DCOVERAGE` was removed as it doesn't work with either modern GCC
or Clang
2025-01-21 17:13:03 +00:00
bb2336ad73
Fix `#embed` support in bbasm and use it when available.
...
This removes the atomic rename for bbasm outputs because it embeds
the resulting paths into the `.cc` files in embed mode. In any case
the write should be fast enough to not be a big risk for interrupted
builds.
This was tested with Clang 19 only (gcc hasn't had a release that
supports `#embed` yet).
2025-01-21 17:13:03 +00:00
f5776a6d64
CMake: eliminate `family.cmake`/`CMakeLists.txt` split.
...
While it served a purpose (granting the ability to build `.bba` files
separately from the rest of nextpnr), it made things excessively
convoluted, especially around paths.
This commit removes the ability to pre-generate chip databases. As far
as I know, I was the primary user of that feature. It can be added back
if there is demand for it.
In exchange the per-family `CMakeLists.txt` files are now much easier
to understand.
2025-01-21 17:13:03 +00:00
a951faa16d
CMake: extract bbasm compilation into a function.
...
This fully preserves existing functionality, although the `embed` mode
is untested and seems broken.
2025-01-21 17:13:03 +00:00
d214308f5f
CMake: reformat for consistency.
...
Normalize keywords to:
if (...)
elseif (...)
else()
endif()
foreach (...)
endforeach()
other(...)
Normalize whitespace to 4 spaces.
2025-01-16 11:36:44 +01:00
574f504787
Find all components of Python at the same time.
...
This is explicitly recommended by the FindPython module documentation
and is required to avoid failed builds on some systems. See:
https://cmake.org/cmake/help/latest/module/FindPython.html
2025-01-13 03:29:43 +00:00
9b51c6e337
clangformat
...
Signed-off-by: gatecat <gatecat@ds0.me>
2024-09-30 14:51:33 +02:00
2627d4e0ad
ecp5: Allow disabling of global promotion ( #1367 )
2024-09-12 20:16:17 +02:00
a29a17f8f2
clangformat
...
Signed-off-by: gatecat <gatecat@ds0.me>
2024-06-18 13:54:12 +02:00
05ed9308d6
ecp5: Improve router performance on slower speed grades
...
Signed-off-by: gatecat <gatecat@ds0.me>
2024-02-21 08:14:51 +01:00
255633c9f3
static: First pass at timing-driven placement
...
Signed-off-by: gatecat <gatecat@ds0.me>
2024-02-12 09:09:13 +01:00
4a4025192a
run clangformat
...
Signed-off-by: gatecat <gatecat@ds0.me>
2023-12-26 09:54:34 +01:00
a32ad13a86
ecp5: Don't segfault while packing FFs when DI port of TRELLIS_FF unconnected
...
Currently a segfault happens when the DI port is not specified. Leaving
it unconnected is probably incorrect, but it shouldn't crash the placer.
Fix by adding a check.
2023-11-14 11:55:51 +01:00
4a7e58a938
static/ecp5: zero bel area for RAMW because it's a zero-area cell
...
Signed-off-by: gatecat <gatecat@ds0.me>
2023-10-14 09:40:41 +02:00
0eb9a9ad02
placer_static: Initial prototype
...
Signed-off-by: gatecat <gatecat@ds0.me>
2023-10-02 14:56:40 +02:00
79c6840fef
ecp5: Improve packer robustness to FF dangling M input
...
Signed-off-by: gatecat <gatecat@ds0.me>
2023-09-02 11:38:20 +02:00
5497a37de1
VLO,VHI support for ECP5
2023-08-29 10:05:30 +02:00
88714c54ec
ecp5: Fix TQFP144 package import
...
Signed-off-by: gatecat <gatecat@ds0.me>
2023-08-17 16:28:35 +02:00
914999673c
Rip out budgets
2023-06-20 10:57:10 +02:00
cb4846a58d
build: push INSTALL_PREFIX from env to cmake var
2023-06-12 14:11:36 +02:00
7557d33dc6
ecp5: Fix invalid accesses during certain IO packing cases
...
Signed-off-by: gatecat <gatecat@ds0.me>
2023-04-12 06:56:59 +02:00
e4fcd3740d
cmake: Make HeAP placer always-enabled
...
Signed-off-by: gatecat <gatecat@ds0.me>
2023-03-17 10:38:11 +01:00
ff14547601
ecp5: Update GUI rendering to match arch changes
...
Signed-off-by: gatecat <gatecat@ds0.me>
2023-03-16 13:13:57 +01:00
39b6584274
clangformat
...
Signed-off-by: gatecat <gatecat@ds0.me>
2023-03-16 11:27:08 +01:00
b5125aac31
Merge pull request #1090 from rowanG077/ecp5-propagate-dcsc-clk-ct
...
ecp5: Propagate clock constraints through DCSC
2023-02-13 10:25:07 +01:00
a8a88d4813
ecp5: Handle the case where both CE are the same constant
...
Signed-off-by: gatecat <gatecat@ds0.me>
2023-02-09 11:12:15 +01:00
9e8f8b7b45
streamline constant_net detection
2023-02-06 17:05:28 +01:00
d2bf44ba45
ecp5: DSCS clock propagation if modesel is 0 constant
2023-02-06 16:27:45 +01:00
a38ee0786a
ecp5: Propagate clock constraints through DSCS
2023-02-01 19:12:10 +01:00
803c57d052
ecp5: LOCATE in LPF works on singleton vector
2023-01-31 21:05:32 +01:00
f80b871dd5
Merge pull request #1084 from YosysHQ/gatecat/ecp5-ioff-fix
...
ecp5: Improve IOFF CE handling robustness
2023-01-27 11:20:45 +01:00
9b5e5f124c
clangformat
...
Signed-off-by: gatecat <gatecat@ds0.me>
2023-01-25 10:29:32 +01:00
c8cb063656
ecp5: Improve IOFF CE handling robustness
...
Signed-off-by: gatecat <gatecat@ds0.me>
2023-01-25 09:26:12 +01:00
gatecat
mrcmry
Rowan Goemans
Dave Anderson
Miodrag Milanović
Catherine
laanwj