litex.git
4 years agoSPI hardware bitbanging from SD CARD
rob-ng15 [Tue, 17 Mar 2020 09:50:45 +0000 (09:50 +0000)]
SPI hardware bitbanging from SD CARD

4 years agoSPI hardware bitbanging from SD CARD
rob-ng15 [Tue, 17 Mar 2020 09:50:16 +0000 (09:50 +0000)]
SPI hardware bitbanging from SD CARD

4 years agosoc/cores/clock: make sure specific clkoutn_divide_range is only used as a fallback...
Florent Kermarrec [Mon, 16 Mar 2020 10:44:39 +0000 (11:44 +0100)]
soc/cores/clock: make sure specific clkoutn_divide_range is only used as a fallback solution.

4 years agoMerge pull request #425 from esden/csr-cod-split-reg
Sean Cross [Sat, 14 Mar 2020 10:08:24 +0000 (18:08 +0800)]
Merge pull request #425 from esden/csr-cod-split-reg

Make CSR documentation diagrams, with more than 8 bits, be split into multiple lanes.

4 years agoAdd bit more logic to decide when to switch to multilane CSR documentation.
Piotr Esden-Tempski [Fri, 13 Mar 2020 21:24:27 +0000 (14:24 -0700)]
Add bit more logic to decide when to switch to multilane CSR documentation.

Now we only generate multilane bitfield documentation when the CSR has
fields, and the smallest field is less than 8bit long. As this is when
we start running into space problems with the field names.

4 years agoSplit CSR documentation diagrams with more than 8 bits into multiple lanes.
Piotr Esden-Tempski [Fri, 13 Mar 2020 05:08:54 +0000 (22:08 -0700)]
Split CSR documentation diagrams with more than 8 bits into multiple lanes.

In cases when each CSR bit has a name and we use CSR with more than 8
bits, the register diagram quickly becomes crowded and hard to read.

With this patch we split the register into multiple lanes of 8 bits
each.

4 years agoMerge pull request #427 from enjoy-digital/s7mmcm_fractional_divide
enjoy-digital [Fri, 13 Mar 2020 17:06:23 +0000 (18:06 +0100)]
Merge pull request #427 from enjoy-digital/s7mmcm_fractional_divide

cores/clock: simplify Fractional Divide support on S7MMCM.

4 years agocores/clock: simplify Fractional Divide support on S7MMCM.
Florent Kermarrec [Fri, 13 Mar 2020 14:51:18 +0000 (15:51 +0100)]
cores/clock: simplify Fractional Divide support on S7MMCM.

Specific clkoutn_divide_range can now be provided by specialized XilinxClocking classes.
When provided, the specific range will be used. Floats are also now supported in the
range definition/iteration.

4 years agoMerge pull request #421 from betrusted-io/clk0_fractional
enjoy-digital [Fri, 13 Mar 2020 13:15:24 +0000 (14:15 +0100)]
Merge pull request #421 from betrusted-io/clk0_fractional

add fractional division options to clk0 config on PLL

4 years agotest: add initial (minimal) test for clock abstraction modules.
Florent Kermarrec [Fri, 13 Mar 2020 11:24:36 +0000 (12:24 +0100)]
test: add initial (minimal) test for clock abstraction modules.

Also fix divclk_divide_range on S6DCM.

4 years agotargets/icebreaker: add description of the board, link to crowdsupply campagin and...
Florent Kermarrec [Fri, 13 Mar 2020 08:37:23 +0000 (09:37 +0100)]
targets/icebreaker: add description of the board, link to crowdsupply campagin and to the more complete example.

4 years agoMerge pull request #426 from esden/update-wavedrom
Sean Cross [Fri, 13 Mar 2020 05:44:13 +0000 (13:44 +0800)]
Merge pull request #426 from esden/update-wavedrom

Updating the vendored wavedrom js files.

4 years agoUpdating the vendored wavedrom js files.
Piotr Esden-Tempski [Fri, 13 Mar 2020 05:35:04 +0000 (22:35 -0700)]
Updating the vendored wavedrom js files.

4 years agosoc/intergration: rename mr_memory_x parameter to memory_x.
Florent Kermarrec [Thu, 12 Mar 2020 11:20:48 +0000 (12:20 +0100)]
soc/intergration: rename mr_memory_x parameter to memory_x.

4 years agoMerge pull request #424 from esden/generate-memory-x
enjoy-digital [Thu, 12 Mar 2020 11:12:48 +0000 (12:12 +0100)]
Merge pull request #424 from esden/generate-memory-x

Add --mr-memory-x parameter to generate memory regions memory.x file

4 years agoAdd --mr-memory-x parameter to generate memory regions memory.x file.
Piotr Esden-Tempski [Thu, 12 Mar 2020 01:07:33 +0000 (18:07 -0700)]
Add --mr-memory-x parameter to generate memory regions memory.x file.

This file is used by rust embedded target pacs.

4 years agoMerge branch 'master' of http://github.com/enjoy-digital/litex
Florent Kermarrec [Wed, 11 Mar 2020 11:57:29 +0000 (12:57 +0100)]
Merge branch 'master' of github.com/enjoy-digital/litex

4 years agosoftware: revert LTO changes (Disable it).
Florent Kermarrec [Wed, 11 Mar 2020 11:56:40 +0000 (12:56 +0100)]
software: revert LTO changes (Disable it).

It seems LTO is not yet fully working with all configurations, so it's better
reverting the changes for now.
- cause issues with LM32 available compilers.
- seems to cause issues with min/lite variant of VexRiscv.
- seems to cause issues with some litex-buildenv configurations. (see https://github.com/enjoy-digital/litex/issues/417).

4 years agoMerge pull request #422 from xobs/core-doc-fixes
Sean Cross [Wed, 11 Mar 2020 11:38:42 +0000 (19:38 +0800)]
Merge pull request #422 from xobs/core-doc-fixes

Core doc fixes

4 years agoMerge pull request #423 from gsomlo/gls-ethmac-fixes
enjoy-digital [Wed, 11 Mar 2020 11:33:50 +0000 (12:33 +0100)]
Merge pull request #423 from gsomlo/gls-ethmac-fixes

integration/soc: add_ethernet: honor self.map["ethmac"], if present

4 years agocores/gpio: add CSR descriptions.
Florent Kermarrec [Wed, 11 Mar 2020 11:06:15 +0000 (12:06 +0100)]
cores/gpio: add CSR descriptions.

4 years agocores/icap: add CSR descriptions.
Florent Kermarrec [Wed, 11 Mar 2020 10:04:42 +0000 (11:04 +0100)]
cores/icap: add CSR descriptions.

4 years agocores/spi: add CSR descriptions.
Florent Kermarrec [Wed, 11 Mar 2020 09:58:22 +0000 (10:58 +0100)]
cores/spi: add CSR descriptions.

4 years agocores/pwm: add CSR descriptions.
Florent Kermarrec [Wed, 11 Mar 2020 09:38:28 +0000 (10:38 +0100)]
cores/pwm: add CSR descriptions.

4 years agocores/xadc: add CSR descriptions.
Florent Kermarrec [Wed, 11 Mar 2020 09:05:14 +0000 (10:05 +0100)]
cores/xadc: add CSR descriptions.

4 years agointegration/soc: add_ethernet: honor self.map["ethmac"], if present
Gabriel Somlo [Tue, 10 Mar 2020 23:45:45 +0000 (19:45 -0400)]
integration/soc: add_ethernet: honor self.map["ethmac"], if present

Signed-off-by: Gabriel Somlo <gsomlo@gmail.com>
4 years agotargets/kcu105: move cd_pll4x.
Florent Kermarrec [Tue, 10 Mar 2020 16:02:28 +0000 (17:02 +0100)]
targets/kcu105: move cd_pll4x.

4 years agotargets/kcu105: simplify CRG using USIDELAYCTRL.
Florent Kermarrec [Tue, 10 Mar 2020 15:48:07 +0000 (16:48 +0100)]
targets/kcu105: simplify CRG using USIDELAYCTRL.

4 years agocores/clock/USIDELAYCTRL: use separate reset/ready counters and set cd_sys.rst intern...
Florent Kermarrec [Tue, 10 Mar 2020 15:45:38 +0000 (16:45 +0100)]
cores/clock/USIDELAYCTRL: use separate reset/ready counters and set cd_sys.rst internally.

This is the behaviour that was duplicated in each target. Integrating it here
will allow simplifying the targets.

4 years agosoc/cores/spi_opi: documentation fixes
Sean Cross [Tue, 10 Mar 2020 12:40:04 +0000 (20:40 +0800)]
soc/cores/spi_opi: documentation fixes

The ModuleDoc-generated documentation for the spi_opi module produced
slightly invalid output due to ambiguities in how rst assigns headers.
As a result, sections from the spi_opi document would appear as full
sections.

This cleans up these errors so that it parses properly under sphinx.

Signed-off-by: Sean Cross <sean@xobs.io>
4 years agosoc/cores/i2s: fix rst parsing errors
Sean Cross [Tue, 10 Mar 2020 12:37:55 +0000 (20:37 +0800)]
soc/cores/i2s: fix rst parsing errors

The ModuleDoc-generated documentation for the i2s module produced
slightly invalid output due to ambiguities in how rst assigns headers.
As a result, sections from the i2s document would appear as full
sections.

This cleans up these errors so that it parses properly under sphinx.

Signed-off-by: Sean Cross <sean@xobs.io>
4 years agobios: add more Ultrascale SDRAM debug with sdram_cdly command to set clk/cmd delay.
Florent Kermarrec [Tue, 10 Mar 2020 12:08:49 +0000 (13:08 +0100)]
bios: add more Ultrascale SDRAM debug with sdram_cdly command to set clk/cmd delay.

4 years agoadd fractional division options to clk0 config on PLL
bunnie [Tue, 10 Mar 2020 10:48:30 +0000 (18:48 +0800)]
add fractional division options to clk0 config on PLL

S7 MMCMs allow fractional divider on clock 0. Add a fallback
to try fractional values on clock 0 if a solution can't be found.

This is necessary for e.g. generating both a 100MHz and 48MHz
clock from a 12MHz source with margin=0

4 years agoMerge pull request #419 from gsomlo/gls-ultra-sdram-fixup
enjoy-digital [Tue, 10 Mar 2020 10:43:23 +0000 (11:43 +0100)]
Merge pull request #419 from gsomlo/gls-ultra-sdram-fixup

software/bios: fixup for Ultrascale SDRAM debug

4 years agocores/clock: add logging to visualize clkin/clkouts and computed config.
Florent Kermarrec [Tue, 10 Mar 2020 10:11:33 +0000 (11:11 +0100)]
cores/clock: add logging to visualize clkin/clkouts and computed config.

4 years agointegration/soc: add FPGA device and System clock to logs.
Florent Kermarrec [Tue, 10 Mar 2020 10:10:23 +0000 (11:10 +0100)]
integration/soc: add FPGA device and System clock to logs.

4 years agotargets/icebreaker: create CRG after SoC.
Florent Kermarrec [Tue, 10 Mar 2020 10:09:56 +0000 (11:09 +0100)]
targets/icebreaker: create CRG after SoC.

4 years agosoftware/bios: fixup for Ultrascale SDRAM debug
Gabriel Somlo [Mon, 9 Mar 2020 14:24:30 +0000 (10:24 -0400)]
software/bios: fixup for Ultrascale SDRAM debug

Keep CSR accesses independent of csr_data_width and csr_alignment.

Signed-off-by: Gabriel Somlo <gsomlo@gmail.com>
4 years agointegration/soc: set use_rom when cpu_reset_address is defined in a rom region.
Florent Kermarrec [Mon, 9 Mar 2020 18:36:39 +0000 (19:36 +0100)]
integration/soc: set use_rom when cpu_reset_address is defined in a rom region.

4 years agoboards/platforms/icebreaker: cleanup a bit.
Florent Kermarrec [Mon, 9 Mar 2020 18:16:02 +0000 (19:16 +0100)]
boards/platforms/icebreaker: cleanup a bit.

4 years agosoftware/common: fix LTO checks.
Florent Kermarrec [Mon, 9 Mar 2020 18:08:27 +0000 (19:08 +0100)]
software/common: fix LTO checks.

4 years agosoc/cores/clock/iCE40PLL: add SB_PLL40_PAD support.
Florent Kermarrec [Mon, 9 Mar 2020 18:03:05 +0000 (19:03 +0100)]
soc/cores/clock/iCE40PLL: add SB_PLL40_PAD support.

4 years agobuild/lattice/icestorm: add timingstrict parameter and default to False. (similar...
Florent Kermarrec [Mon, 9 Mar 2020 18:02:23 +0000 (19:02 +0100)]
build/lattice/icestorm: add timingstrict parameter and default to False. (similar behavior than others backends)

4 years agotargets/icebreaker: simplify, use standard VexRiscv, add iCE40PLL and run BIOS from...
Florent Kermarrec [Mon, 9 Mar 2020 16:02:29 +0000 (17:02 +0100)]
targets/icebreaker: simplify, use standard VexRiscv, add iCE40PLL and run BIOS from SPI Flash.

4 years agolattice/icestorm: enable DSP inference with Yosys and avoid setting SPI Flash in...
Florent Kermarrec [Mon, 9 Mar 2020 15:51:11 +0000 (16:51 +0100)]
lattice/icestorm: enable DSP inference with Yosys and avoid setting SPI Flash in deep sleep mode after configuration which prevent running ROM CPU code from SPI Flash.

4 years agoboards: add initial icebreaker platform/target from litex-boards.
Florent Kermarrec [Mon, 9 Mar 2020 10:56:55 +0000 (11:56 +0100)]
boards: add initial icebreaker platform/target from litex-boards.

4 years agosoftware/bios: add Ultrascale SDRAM debug functions.
Florent Kermarrec [Mon, 9 Mar 2020 09:55:31 +0000 (10:55 +0100)]
software/bios: add Ultrascale SDRAM debug functions.

4 years agoboards/platforms/kcu105: avoid unnecessary {{}} on INTERNAL_VREF.
Florent Kermarrec [Mon, 9 Mar 2020 08:37:31 +0000 (09:37 +0100)]
boards/platforms/kcu105: avoid unnecessary {{}} on INTERNAL_VREF.

4 years agointegration/soc/SoCRegion: add size_pow2 and use this internally for checks since...
Florent Kermarrec [Sun, 8 Mar 2020 18:17:31 +0000 (19:17 +0100)]
integration/soc/SoCRegion: add size_pow2 and use this internally for checks since decoder is using rounded size to next power or 2.

4 years agosoc: allow creating SoC without BIOS.
Florent Kermarrec [Fri, 6 Mar 2020 19:05:27 +0000 (20:05 +0100)]
soc: allow creating SoC without BIOS.

By default the behaviour is unchanged and the SoC will provide a ROM:
./arty.py

Bus Regions: (4)
rom                 : Origin: 0x00000000, Size: 0x00008000, Mode: R, Cached: True Linker: False
sram                : Origin: 0x01000000, Size: 0x00001000, Mode: RW, Cached: True Linker: False
main_ram            : Origin: 0x40000000, Size: 0x10000000, Mode: RW, Cached: True Linker: False
csr                 : Origin: 0x82000000, Size: 0x00010000, Mode: RW, Cached: False Linker: False

The integrated rom can be disabled with:
./arty.py --integrated-rom-size=0

but the SoC builder will check for a user provided rom, and if not provided will complains:
ERROR:SoC:CPU needs rom Region to be defined as Bus or Linker Region.

When a rom is provided, the CPU will use the rom base address as cpu_reset_address.

If the user just wants the CPU to start at a specified address without providing a rom,
the cpu_reset_address parameter can be used:

./arty.py --integrated-rom-size=0 --cpu-reset-address=0x01000000

If the provided reset address is not located in any defined Region, an error will
be produced:
ERROR:SoC:CPU needs reset address 0x00000000 to be in a defined Region.

When no rom is provided, the builder will not build the BIOS.

4 years agoMerge pull request #416 from enjoy-digital/csr_svd
enjoy-digital [Fri, 6 Mar 2020 18:00:13 +0000 (19:00 +0100)]
Merge pull request #416 from enjoy-digital/csr_svd

Add SVD export capability to Builder (csr_svd parameter) and targets …

4 years agointegration/builder: rename software methods to _prepare_rom_software/_generate_rom_s...
Florent Kermarrec [Fri, 6 Mar 2020 13:53:59 +0000 (14:53 +0100)]
integration/builder: rename software methods to _prepare_rom_software/_generate_rom_software/_initialize_rom_software.

4 years agointegration/builder: generate csr maps before compiling software.
Florent Kermarrec [Fri, 6 Mar 2020 13:20:32 +0000 (14:20 +0100)]
integration/builder: generate csr maps before compiling software.

4 years agoAdd SVD export capability to Builder (csr_svd parameter) and targets (--csr-svd argum...
Florent Kermarrec [Fri, 6 Mar 2020 07:36:52 +0000 (08:36 +0100)]
Add SVD export capability to Builder (csr_svd parameter) and targets (--csr-svd argument) and fix svd regression.

This allows generating SVD export files during the build as we are already doing for .csv or .json.

Use with Builder:
builder = Builder(soc, csr_svd="csr.svd")

Use with target:
./arty.py --csr-svd=csr.svd

4 years agosoftware/common.mak: fix LTO refactoring issue.
Florent Kermarrec [Thu, 5 Mar 2020 22:42:16 +0000 (23:42 +0100)]
software/common.mak: fix LTO refactoring issue.

4 years agoMerge pull request #412 from antmicro/fix-copyrights
enjoy-digital [Thu, 5 Mar 2020 18:05:02 +0000 (19:05 +0100)]
Merge pull request #412 from antmicro/fix-copyrights

Fix copyrights

4 years agoFix copyrights
Karol Gugala [Thu, 5 Mar 2020 16:44:10 +0000 (17:44 +0100)]
Fix copyrights

Signed-off-by: Karol Gugala <kgugala@antmicro.com>
Signed-off-by: Mateusz Holenko <mholenko@antmicro.com>
4 years agoMerge pull request #408 from gsomlo/gls-fix-nexys-sdcard
enjoy-digital [Thu, 5 Mar 2020 14:22:40 +0000 (15:22 +0100)]
Merge pull request #408 from gsomlo/gls-fix-nexys-sdcard

targets/nexys4ddr: fix sdcard clocker initialization

4 years agotargets/nexys4ddr: fix sdcard clocker initialization
Gabriel Somlo [Wed, 4 Mar 2020 18:38:02 +0000 (13:38 -0500)]
targets/nexys4ddr: fix sdcard clocker initialization

4 years agoMerge pull request #410 from antmicro/netv2-edid
enjoy-digital [Thu, 5 Mar 2020 10:43:02 +0000 (11:43 +0100)]
Merge pull request #410 from antmicro/netv2-edid

platform/netv2: add proper I2C pins for HDMI IN0

4 years agoplatform/netv2: add proper I2C pins for HDMI IN0
Piotr Binkowski [Thu, 5 Mar 2020 10:27:47 +0000 (11:27 +0100)]
platform/netv2: add proper I2C pins for HDMI IN0

4 years agotargets/ecp5: make sure all BaseSoC/EthernetSoc default to trellis.
Florent Kermarrec [Thu, 5 Mar 2020 10:19:29 +0000 (11:19 +0100)]
targets/ecp5: make sure all BaseSoC/EthernetSoc default to trellis.

4 years agobios/sdcard: update sdclk_mmcm_write with LiteSDCard clocker changes.
Florent Kermarrec [Wed, 4 Mar 2020 17:33:08 +0000 (18:33 +0100)]
bios/sdcard: update sdclk_mmcm_write with LiteSDCard clocker changes.

4 years agodoc: align to improve readability.
Florent Kermarrec [Wed, 4 Mar 2020 15:31:41 +0000 (16:31 +0100)]
doc: align to improve readability.

4 years agosoc/doc: remove soc.get_csr_regions support.
Florent Kermarrec [Wed, 4 Mar 2020 15:27:11 +0000 (16:27 +0100)]
soc/doc: remove soc.get_csr_regions support.

Now that SoC documentation is integrated in LiteX, this is no longer needed.

4 years agobios/main: rename flushl2 command to flush_l2_cache, add flush_cpu_dcache command...
Florent Kermarrec [Wed, 4 Mar 2020 14:53:18 +0000 (15:53 +0100)]
bios/main: rename flushl2 command to flush_l2_cache, add flush_cpu_dcache command and expose them in help.

4 years agoREADME: update quick start guide and add instructions for windows.
Florent Kermarrec [Wed, 4 Mar 2020 14:21:43 +0000 (15:21 +0100)]
README: update quick start guide and add instructions for windows.

4 years agoREADME: update
Florent Kermarrec [Wed, 4 Mar 2020 11:16:03 +0000 (12:16 +0100)]
README: update
- improve presentation
- add link to #litex freenode channel.
- add example of complex SoC.
- make it directly usable on Wiki.
- only keep one quick start guide.
- add community paragraph and link to Litex-Hub.

4 years agodoc: remove partial doc imported from litex-buildenv-wiki: we'll create a LiteX wiki...
Florent Kermarrec [Wed, 4 Mar 2020 09:53:44 +0000 (10:53 +0100)]
doc: remove partial doc imported from litex-buildenv-wiki: we'll create a LiteX wiki and doc.

4 years agobuild: assume vendor tools are in the PATH and remove automatic sourcing, source...
Florent Kermarrec [Wed, 4 Mar 2020 08:06:27 +0000 (09:06 +0100)]
build: assume vendor tools are in the PATH and remove automatic sourcing, source and toolchain_path parameters.

Automatic sourcing was not consistent between build backends (and only really supported by ISE/Vivado)
and had no real additional value vs the complexity needed to support it. Now just assume required vendor
tools are in the PATH.

This also removes distutils dependency.

4 years agosoftware/common: add LTO enable flag and cleanup.
Florent Kermarrec [Wed, 4 Mar 2020 07:11:21 +0000 (08:11 +0100)]
software/common: add LTO enable flag and cleanup.

4 years agolitex_sim: fix with_uart parameter.
Florent Kermarrec [Tue, 3 Mar 2020 18:04:18 +0000 (19:04 +0100)]
litex_sim: fix with_uart parameter.

4 years agotargets/nexys4ddr: add default kwargs parameters.
Florent Kermarrec [Mon, 2 Mar 2020 08:44:20 +0000 (09:44 +0100)]
targets/nexys4ddr: add default kwargs parameters.

4 years agoMerge branch 'master' of https://github.com/enjoy-digital/litex
Florent Kermarrec [Mon, 2 Mar 2020 08:31:45 +0000 (09:31 +0100)]
Merge branch 'master' of https://github.com/enjoy-digital/litex

4 years agointegration/soc_core: change disable parameters to no-xxyy.
Florent Kermarrec [Mon, 2 Mar 2020 08:31:32 +0000 (09:31 +0100)]
integration/soc_core: change disable parameters to no-xxyy.

4 years agoMerge pull request #405 from sajattack/sifive-triple
enjoy-digital [Mon, 2 Mar 2020 08:30:05 +0000 (09:30 +0100)]
Merge pull request #405 from sajattack/sifive-triple

add riscv-sifive-elf triple

4 years agointegration/soc: add auto_int type and use it on all int parameters.
Florent Kermarrec [Mon, 2 Mar 2020 08:07:31 +0000 (09:07 +0100)]
integration/soc: add auto_int type and use it on all int parameters.

Allow passing parameters as int or hex values.

4 years agotargets/nexys4ddr: use SoCCore and add_sdram to avoid use of specific SoCSDRAM.
Florent Kermarrec [Mon, 2 Mar 2020 08:01:05 +0000 (09:01 +0100)]
targets/nexys4ddr: use SoCCore and add_sdram to avoid use of specific SoCSDRAM.

4 years agointegration/soc: add ethphy CSR in target.
Florent Kermarrec [Mon, 2 Mar 2020 07:42:59 +0000 (08:42 +0100)]
integration/soc: add ethphy CSR in target.

4 years agotargets/nexys4ddr: use soc.add_ethernet method.
Florent Kermarrec [Sun, 1 Mar 2020 19:50:44 +0000 (20:50 +0100)]
targets/nexys4ddr: use soc.add_ethernet method.

4 years agointegration/soc: add add_ethernet method.
Florent Kermarrec [Sun, 1 Mar 2020 19:50:13 +0000 (20:50 +0100)]
integration/soc: add add_ethernet method.

4 years agointegration/soc: mode litedram imports to add_sdram, remove some separators.
Florent Kermarrec [Sun, 1 Mar 2020 17:58:55 +0000 (18:58 +0100)]
integration/soc: mode litedram imports to add_sdram, remove some separators.

4 years agoadd riscv-sifive-elf triple
Paul Sajna [Sun, 1 Mar 2020 09:39:03 +0000 (01:39 -0800)]
add riscv-sifive-elf triple

4 years agotest/test_targets: use uart-name=stub.
Florent Kermarrec [Sat, 29 Feb 2020 10:07:06 +0000 (11:07 +0100)]
test/test_targets: use uart-name=stub.

4 years agosoc/uart: add configurable UART FIFO depth.
Florent Kermarrec [Fri, 28 Feb 2020 21:34:11 +0000 (22:34 +0100)]
soc/uart: add configurable UART FIFO depth.

4 years agocores/uart: cleanup
Florent Kermarrec [Fri, 28 Feb 2020 21:11:51 +0000 (22:11 +0100)]
cores/uart: cleanup

4 years agosoc/cores/uart/UARTCrossover: reduce fifo_depth to 1.
Florent Kermarrec [Fri, 28 Feb 2020 21:03:40 +0000 (22:03 +0100)]
soc/cores/uart/UARTCrossover: reduce fifo_depth to 1.

4 years agointerconnect/stream/SyncFIFO: allow depth down to 0.
Florent Kermarrec [Fri, 28 Feb 2020 19:03:47 +0000 (20:03 +0100)]
interconnect/stream/SyncFIFO: allow depth down to 0.

4 years agointerconnect/axi: remove Record inheritance on AXIInterface/AXILiteInterface.
Florent Kermarrec [Fri, 28 Feb 2020 15:33:18 +0000 (16:33 +0100)]
interconnect/axi: remove Record inheritance on AXIInterface/AXILiteInterface.

4 years agointerconnect/axi: add AXI Stream definition and get_ios/connect_to_pads methods.
Florent Kermarrec [Fri, 28 Feb 2020 15:25:09 +0000 (16:25 +0100)]
interconnect/axi: add AXI Stream definition and get_ios/connect_to_pads methods.

4 years agointerconnect/axi: set default data_width/address_width to 32-bit.
Florent Kermarrec [Fri, 28 Feb 2020 12:19:10 +0000 (13:19 +0100)]
interconnect/axi: set default data_width/address_width to 32-bit.

4 years agotargets: default to trellis toolchain on all ECP5 targets (now able to build all...
Florent Kermarrec [Fri, 28 Feb 2020 08:48:48 +0000 (09:48 +0100)]
targets: default to trellis toolchain on all ECP5 targets (now able to build all supported targets).

4 years agocores/gpio: use separate TSTriple for each bit.
Florent Kermarrec [Fri, 28 Feb 2020 08:10:28 +0000 (09:10 +0100)]
cores/gpio: use separate TSTriple for each bit.

This fixes per bit OE control.

4 years agolattice/yosys: don't use quiet operation since logs are useful and for consistency...
Florent Kermarrec [Fri, 28 Feb 2020 07:32:29 +0000 (08:32 +0100)]
lattice/yosys: don't use quiet operation since logs are useful and for consistency with others build backends.

4 years agotargets/kc705: use DDRPHY_CMD_DELAY to center write leveling.
Florent Kermarrec [Thu, 27 Feb 2020 12:00:35 +0000 (13:00 +0100)]
targets/kc705: use DDRPHY_CMD_DELAY to center write leveling.

4 years agosoftware/bios/sdram: allow setting CLK/CMD delay from user design and configure it...
Florent Kermarrec [Thu, 27 Feb 2020 11:25:37 +0000 (12:25 +0100)]
software/bios/sdram: allow setting CLK/CMD delay from user design and configure it before write/read leveling.

Setting a manual delay on CLK/CMD vs DQ/DQS is required on some configuration to center the write leveling window:

Before (delay = 0 taps):
Write leveling:
m0: |11000000000000011111111111| delay: 15
m1: |00000000000000111111111111| delay: 14
m2: |11110000000000000111111111| delay: 17
m3: |11110000000000000011111111| delay: 18
m4: |11111111110000000000000111| delay: 00
m5: |11111111110000000000000111| delay: 00
m6: |11111111111000000000000001| delay: 00
m7: |11111111111000000000000011| delay: 00

After (delay = 12 taps):
Write leveling:
m0: |11111111111111000000000000| delay: 00
m1: |11111111111100000000000001| delay: 00
m2: |00011111111111110000000000| delay: 03
m3: |00011111111111110000000000| delay: 03
m4: |00000000111111111111110000| delay: 08
m5: |00000000111111111111110000| delay: 08
m6: |00000000001111111111111000| delay: 10
m7: |00000000001111111111111000| delay: 10

4 years agoboards: keep in sync with LiteX-boards
Florent Kermarrec [Thu, 27 Feb 2020 10:18:14 +0000 (11:18 +0100)]
boards: keep in sync with LiteX-boards

4 years agointerconnect/axi: remove mode on AXIInterface (not used and breaking LiteDRAM tests)
Florent Kermarrec [Wed, 26 Feb 2020 14:13:16 +0000 (15:13 +0100)]
interconnect/axi: remove mode on AXIInterface (not used and breaking LiteDRAM tests)

4 years agointegration/soc: -x on soc.py
Florent Kermarrec [Wed, 26 Feb 2020 13:43:01 +0000 (14:43 +0100)]
integration/soc: -x on soc.py

4 years agosoc/cores/bitbang: fix missing self.comb on miso.
Florent Kermarrec [Tue, 25 Feb 2020 14:56:27 +0000 (15:56 +0100)]
soc/cores/bitbang: fix missing self.comb on miso.