litex.git
4 years agoAdding SiFive RISC-V toolchain downloading to litex_setup.py
Tim 'mithro' Ansell [Mon, 6 Apr 2020 23:39:49 +0000 (16:39 -0700)]
Adding SiFive RISC-V toolchain downloading to litex_setup.py

4 years agoFix alignments.
Tim 'mithro' Ansell [Mon, 6 Apr 2020 23:49:52 +0000 (16:49 -0700)]
Fix alignments.

4 years agoMerge pull request #450 from mithro/litex-setup-fix
enjoy-digital [Mon, 6 Apr 2020 21:04:47 +0000 (23:04 +0200)]
Merge pull request #450 from mithro/litex-setup-fix

litex_setup: Use subprocess so failures are noticed.

4 years agoRun `litex_setup.py` outside the git clone directory.
Tim 'mithro' Ansell [Mon, 6 Apr 2020 18:38:23 +0000 (11:38 -0700)]
Run `litex_setup.py` outside the git clone directory.

Otherwise it tries to overwrite the litex directory by cloning LiteX
into it.

4 years agolitex_setup: Use subprocess so failures are noticed.
Tim 'mithro' Ansell [Mon, 6 Apr 2020 18:25:11 +0000 (11:25 -0700)]
litex_setup: Use subprocess so failures are noticed.

os.system doesn't report if any of the commands fail. This means that if
something goes wrong it happily reports success making it hard to debug
issues.

4 years agosoc/cores: use reset_less on datapath/configuration CSRStorages.
Florent Kermarrec [Mon, 6 Apr 2020 11:16:13 +0000 (13:16 +0200)]
soc/cores: use reset_less on datapath/configuration CSRStorages.

4 years agointerconnect/csr: add reset_less parameter.
Florent Kermarrec [Mon, 6 Apr 2020 11:14:21 +0000 (13:14 +0200)]
interconnect/csr: add reset_less parameter.

In cases CSRStorage can be considered as a datapath/configuration register and does not need to be reseted.

4 years agointerconnect/csr, wishbone: use reset_less on datapath signals.
Florent Kermarrec [Mon, 6 Apr 2020 11:11:50 +0000 (13:11 +0200)]
interconnect/csr, wishbone: use reset_less on datapath signals.

4 years agocores/code_8b10b: set reset_less to True on datapath signals.
Florent Kermarrec [Mon, 6 Apr 2020 09:35:18 +0000 (11:35 +0200)]
cores/code_8b10b: set reset_less to True on datapath signals.

Reset is only required on control signals.

4 years agostream: set reset_less to True on datapath signals.
Florent Kermarrec [Mon, 6 Apr 2020 09:33:49 +0000 (11:33 +0200)]
stream: set reset_less to True on datapath signals.

Reset is only required on control signals.

4 years agoMerge pull request #448 from kessam/patch-1
enjoy-digital [Mon, 6 Apr 2020 09:12:12 +0000 (11:12 +0200)]
Merge pull request #448 from kessam/patch-1

Fix timing constraints

4 years agoFix timing constraints
kessam [Sun, 5 Apr 2020 15:56:29 +0000 (17:56 +0200)]
Fix timing constraints

4 years agosoc/cores/clock/ECP5PLL: add CLKI_DIV support.
Florent Kermarrec [Fri, 3 Apr 2020 09:14:57 +0000 (11:14 +0200)]
soc/cores/clock/ECP5PLL: add CLKI_DIV support.

4 years agoMerge pull request #447 from antmicro/spi-xip
enjoy-digital [Wed, 1 Apr 2020 14:51:29 +0000 (16:51 +0200)]
Merge pull request #447 from antmicro/spi-xip

Add initial support for the new LiteSPI core

4 years agotargets: netv2: add LiteSPI
Piotr Binkowski [Mon, 30 Mar 2020 11:43:34 +0000 (13:43 +0200)]
targets: netv2: add LiteSPI

4 years agoplatform: netv2: update SPI flash pinout
Piotr Binkowski [Mon, 30 Mar 2020 10:42:15 +0000 (12:42 +0200)]
platform: netv2: update SPI flash pinout

4 years agolitex_sim: add LiteSPI
Piotr Binkowski [Mon, 30 Mar 2020 11:42:56 +0000 (13:42 +0200)]
litex_sim: add LiteSPI

4 years agosoc/cores/uart: use reset_less on accumulator, reg, bitcount to reduce.
Florent Kermarrec [Tue, 31 Mar 2020 14:54:38 +0000 (16:54 +0200)]
soc/cores/uart: use reset_less on accumulator, reg, bitcount to reduce.

This reduces logic a bit. It does not make large difference on usual design with
only 1 UART, but is interesting on designs with hundreds of UARTs used to "document"
FPGA boards :) (similar to https://github.com/enjoy-digital/camlink_4k/blob/master/ios_stream.py)

4 years agosoc/cores/spi_flash: add ECP5SPIFlash (non-memory-mapped).
Florent Kermarrec [Tue, 31 Mar 2020 14:17:12 +0000 (16:17 +0200)]
soc/cores/spi_flash: add ECP5SPIFlash (non-memory-mapped).

4 years agolitex_setup: add litespi core
Piotr Binkowski [Mon, 30 Mar 2020 11:37:34 +0000 (13:37 +0200)]
litex_setup: add litespi core

4 years agoMerge pull request #444 from ilya-epifanov/openocd-jtag-programmer
enjoy-digital [Sat, 28 Mar 2020 11:58:08 +0000 (12:58 +0100)]
Merge pull request #444 from ilya-epifanov/openocd-jtag-programmer

Added openocd jtagspi programmer, to be used with ECP5-EVN board

4 years agoMerge pull request #441 from gsomlo/gls-spisdcard-fixes
enjoy-digital [Sat, 28 Mar 2020 11:50:17 +0000 (12:50 +0100)]
Merge pull request #441 from gsomlo/gls-spisdcard-fixes

SPI SDCard fixes and features

4 years agoAdded openocd jtagspi programmer, to be used with ECP5-EVN board
Ilya Epifanov [Sat, 28 Mar 2020 10:20:30 +0000 (11:20 +0100)]
Added openocd jtagspi programmer, to be used with ECP5-EVN board

4 years agosoftware/bios: add spisdcardboot() to boot_sequence()
Gabriel Somlo [Fri, 27 Mar 2020 11:02:00 +0000 (07:02 -0400)]
software/bios: add spisdcardboot() to boot_sequence()

Signed-off-by: Gabriel Somlo <gsomlo@gmail.com>
4 years agosoftware/libbase/spisdcard: add delay to goidle loop
Gabriel Somlo [Fri, 27 Mar 2020 11:01:02 +0000 (07:01 -0400)]
software/libbase/spisdcard: add delay to goidle loop

In `spi_sdcard_goidle()`, insert a `busy_wait()` into the CMD55+ACMD41
loop to avoid exhausting the retry counter before the card has a chance
to be ready (required on the trellisboard, also tested OK on nexys4ddr).

Signed-off-by: Gabriel Somlo <gsomlo@gmail.com>
4 years agosoftware/bios: factor out busy_wait() function
Gabriel Somlo [Fri, 27 Mar 2020 10:58:06 +0000 (06:58 -0400)]
software/bios: factor out busy_wait() function

Signed-off-by: Gabriel Somlo <gsomlo@gmail.com>
4 years agosoftware/libbase/spisdcard: fix width of address parameter
Gabriel Somlo [Fri, 27 Mar 2020 11:07:30 +0000 (07:07 -0400)]
software/libbase/spisdcard: fix width of address parameter

Host address parameter types should match CPU word width, so
use `unsigned long` to be correct on both 32 and 64 bit CPUs.

Signed-off-by: Gabriel Somlo <gsomlo@gmail.com>
4 years agosoc/cores/spi: make dynamic clk divider optional (can be enabled with add_clk_divider...
Florent Kermarrec [Fri, 27 Mar 2020 17:44:48 +0000 (18:44 +0100)]
soc/cores/spi: make dynamic clk divider optional (can be enabled with add_clk_divider method) and only use it in add_spi_sdcard.

4 years agoMerge pull request #439 from antmicro/fix-compiler-rt
enjoy-digital [Thu, 26 Mar 2020 14:36:39 +0000 (15:36 +0100)]
Merge pull request #439 from antmicro/fix-compiler-rt

Update removed llvm compiler-rt repo

4 years agoUpdate removed llvm compiler-rt repo
Kamil Rakoczy [Thu, 26 Mar 2020 09:56:28 +0000 (10:56 +0100)]
Update removed llvm compiler-rt repo

4 years agotargets/add_constant: avoid specifying value when value is None (=default).
Florent Kermarrec [Thu, 26 Mar 2020 08:45:19 +0000 (09:45 +0100)]
targets/add_constant: avoid specifying value when value is None (=default).

4 years agosoftware/libbase/spisdcard: add USE_SPISDCARD_RECLOCKING define to easily disable...
Florent Kermarrec [Thu, 26 Mar 2020 06:46:32 +0000 (07:46 +0100)]
software/libbase/spisdcard: add USE_SPISDCARD_RECLOCKING define to easily disable reclocking.

4 years agointegration/soc/add_uart: add USB CDC support (with ValentyUSB core).
Florent Kermarrec [Wed, 25 Mar 2020 18:07:06 +0000 (19:07 +0100)]
integration/soc/add_uart: add USB CDC support (with ValentyUSB core).

4 years agotools/litex_sim: simplify using uart_name=sim.
Florent Kermarrec [Wed, 25 Mar 2020 17:57:26 +0000 (18:57 +0100)]
tools/litex_sim: simplify using uart_name=sim.

4 years agointegration/soc/add_uart: add Model/Sim.
Florent Kermarrec [Wed, 25 Mar 2020 17:56:58 +0000 (18:56 +0100)]
integration/soc/add_uart: add Model/Sim.

4 years agointegration/soc/add_uart: cleanup.
Florent Kermarrec [Wed, 25 Mar 2020 17:53:00 +0000 (18:53 +0100)]
integration/soc/add_uart: cleanup.

4 years agobuild/tools: add replace_in_file function.
Florent Kermarrec [Wed, 25 Mar 2020 15:36:53 +0000 (16:36 +0100)]
build/tools: add replace_in_file function.

4 years agotools/litex_term: use 64 bytes as default payload_lengh (work for all confniguration...
Florent Kermarrec [Wed, 25 Mar 2020 08:31:51 +0000 (09:31 +0100)]
tools/litex_term: use 64 bytes as default payload_lengh (work for all confniguration) and add small delay between frames for FT245 FIFO.

The delay still need to be investigated.

4 years agobios/boot: update comments.
Florent Kermarrec [Wed, 25 Mar 2020 08:21:28 +0000 (09:21 +0100)]
bios/boot: update comments.

4 years agoMerge pull request #437 from feliks-montez/bugfix/fix-serialboot-frames
enjoy-digital [Wed, 25 Mar 2020 08:18:31 +0000 (09:18 +0100)]
Merge pull request #437 from feliks-montez/bugfix/fix-serialboot-frames

flush rx buffer when bad crc and fix frame payload length

4 years agotest/test_targets: remove versa_ecp3.
Florent Kermarrec [Wed, 25 Mar 2020 07:47:43 +0000 (08:47 +0100)]
test/test_targets: remove versa_ecp3.

4 years agoboards/targets: update SDRAM to use new GENSDRPHY and new ECP5PLL phase support.
Florent Kermarrec [Tue, 24 Mar 2020 19:04:18 +0000 (20:04 +0100)]
boards/targets: update SDRAM to use new GENSDRPHY and new ECP5PLL phase support.

4 years agoboards/platforms: remove versa_ecp3 (ECP3 no longer supported).
Florent Kermarrec [Tue, 24 Mar 2020 19:02:57 +0000 (20:02 +0100)]
boards/platforms: remove versa_ecp3 (ECP3 no longer supported).

4 years agobuild/lattice/diamond: remove ECP3 support. (ECP3 is not used and no longer interesti...
Florent Kermarrec [Tue, 24 Mar 2020 18:36:57 +0000 (19:36 +0100)]
build/lattice/diamond: remove ECP3 support. (ECP3 is not used and no longer interesting now that ECP5 has an open-source toolchain).

4 years agocores/clock/ECP5PLL: add phase support.
Florent Kermarrec [Tue, 24 Mar 2020 18:09:05 +0000 (19:09 +0100)]
cores/clock/ECP5PLL: add phase support.

4 years agobuild/lattice/common: change LatticeECPXDDROutputImpl from ECP3 to ECP5.
Florent Kermarrec [Tue, 24 Mar 2020 18:08:38 +0000 (19:08 +0100)]
build/lattice/common: change LatticeECPXDDROutputImpl from ECP3 to ECP5.

4 years agoFix off-by-one error on almost full condition for prefetch
bunnie [Tue, 24 Mar 2020 06:11:23 +0000 (14:11 +0800)]
Fix off-by-one error on almost full condition for prefetch

This causes a DRC error on the Xilinx tools when the prefetch
lines setting is 1. Don't know why this wasn't caught earlier,
but it just popped up in CI.

4 years agoflush rx buffer when bad crc and fix frame payload length
Feliks [Tue, 24 Mar 2020 03:04:36 +0000 (23:04 -0400)]
flush rx buffer when bad crc and fix frame payload length

4 years agosoc/doc/csr: allow CSRField.reset to be a Migen Constant.
Florent Kermarrec [Mon, 23 Mar 2020 17:47:41 +0000 (18:47 +0100)]
soc/doc/csr: allow CSRField.reset to be a Migen Constant.

4 years agocpu/vexriscv/mem_map_linux: move main_ram to allow up to 1GB.
Florent Kermarrec [Mon, 23 Mar 2020 14:35:33 +0000 (15:35 +0100)]
cpu/vexriscv/mem_map_linux: move main_ram to allow up to 1GB.

4 years agosoftware/bios/boot/linux: move emulator.bin to main_ram and allow defining custom...
Florent Kermarrec [Mon, 23 Mar 2020 14:06:32 +0000 (15:06 +0100)]
software/bios/boot/linux: move emulator.bin to main_ram and allow defining custom ram offsets.

4 years agotargets: remove Etherbone imports.
Florent Kermarrec [Sat, 21 Mar 2020 20:39:34 +0000 (21:39 +0100)]
targets: remove Etherbone imports.

4 years agotargets: switch to add_etherbone method.
Florent Kermarrec [Sat, 21 Mar 2020 18:55:00 +0000 (19:55 +0100)]
targets: switch to add_etherbone method.

4 years agointegration/soc: add add_etherbone method.
Florent Kermarrec [Sat, 21 Mar 2020 18:54:36 +0000 (19:54 +0100)]
integration/soc: add add_etherbone method.

4 years agointegration/soc/add_ethernet: add name parameter (defaults to ethmac).
Florent Kermarrec [Sat, 21 Mar 2020 18:36:31 +0000 (19:36 +0100)]
integration/soc/add_ethernet: add name parameter (defaults to ethmac).

4 years agotargets: always use sys_clk_freq on SDRAM modules.
Florent Kermarrec [Sat, 21 Mar 2020 18:36:06 +0000 (19:36 +0100)]
targets: always use sys_clk_freq on SDRAM modules.

4 years agotargets: fix typos in previous changes.
Florent Kermarrec [Sat, 21 Mar 2020 17:26:58 +0000 (18:26 +0100)]
targets: fix typos in previous changes.

4 years agoMerge pull request #436 from rob-ng15/master
enjoy-digital [Sat, 21 Mar 2020 08:26:25 +0000 (09:26 +0100)]
Merge pull request #436 from rob-ng15/master

Reclock spi sdcard access after initialisation

4 years agoMerge pull request #435 from enjoy-digital/spi_master_clk_divider
enjoy-digital [Sat, 21 Mar 2020 08:25:37 +0000 (09:25 +0100)]
Merge pull request #435 from enjoy-digital/spi_master_clk_divider

soc/core/spi: add Clk Divider CSR (defaults to sys_clk_freq/spi_clk_f…

4 years agoReclock spi sdcard access after initialisation
rob-ng15 [Sat, 21 Mar 2020 07:37:21 +0000 (07:37 +0000)]
Reclock spi sdcard access after initialisation

Depends upon https://github.com/enjoy-digital/litex/pull/435

After initialising the card, reclock the card, aiming for ~16MHz (divider is rounded up, as slower speed is safer), but a maximum of half of the processor speed.

Tested with the card being clocked to 12.5MHz on de10nano

4 years agotargets: switch to add_ethernet method instead of EthernetSoC.
Florent Kermarrec [Fri, 20 Mar 2020 22:36:29 +0000 (23:36 +0100)]
targets: switch to add_ethernet method instead of EthernetSoC.

4 years agotargets: switch to SoCCore/add_sdram instead of SoCSDRAM.
Florent Kermarrec [Fri, 20 Mar 2020 21:02:36 +0000 (22:02 +0100)]
targets: switch to SoCCore/add_sdram instead of SoCSDRAM.

4 years agosoc/core/spi: add Clk Divider CSR (defaults to sys_clk_freq/spi_clk_freq).
Florent Kermarrec [Fri, 20 Mar 2020 18:49:42 +0000 (19:49 +0100)]
soc/core/spi: add Clk Divider CSR (defaults to sys_clk_freq/spi_clk_freq).

4 years agotargets/arty: use new ISERDESE2 MEMORY mode.
Florent Kermarrec [Fri, 20 Mar 2020 17:58:31 +0000 (18:58 +0100)]
targets/arty: use new ISERDESE2 MEMORY mode.

4 years agoMerge branch 'master' of http://github.com/enjoy-digital/litex
Florent Kermarrec [Fri, 20 Mar 2020 17:54:51 +0000 (18:54 +0100)]
Merge branch 'master' of github.com/enjoy-digital/litex

4 years agoMerge pull request #434 from rob-ng15/master
enjoy-digital [Fri, 20 Mar 2020 17:05:21 +0000 (18:05 +0100)]
Merge pull request #434 from rob-ng15/master

Use <stdint.h> to provide structure sizes

4 years agoUse <stdint.h> to provide structure sizes
rob-ng15 [Fri, 20 Mar 2020 11:35:05 +0000 (11:35 +0000)]
Use <stdint.h> to provide structure sizes

4 years agoUse <stdint.h> for structure sizes
rob-ng15 [Fri, 20 Mar 2020 11:34:24 +0000 (11:34 +0000)]
Use <stdint.h> for structure sizes

4 years agointegration/soc: add add_spi_flash method to add SPI Flash support to the SoC.
Florent Kermarrec [Fri, 20 Mar 2020 09:24:31 +0000 (10:24 +0100)]
integration/soc: add add_spi_flash method to add SPI Flash support to the SoC.

4 years agotargets/nexys4ddr: use LiteXSoC's add_spi_sdcard method.
Florent Kermarrec [Fri, 20 Mar 2020 08:58:09 +0000 (09:58 +0100)]
targets/nexys4ddr: use LiteXSoC's add_spi_sdcard method.

4 years agointegration/soc: add add_spi_sdcard method to add SPI mode SDCard support to the...
Florent Kermarrec [Fri, 20 Mar 2020 08:57:37 +0000 (09:57 +0100)]
integration/soc: add add_spi_sdcard method to add SPI mode SDCard support to the SoC.

4 years agoMerge pull request #433 from gsomlo/gls-rocket-spisdcard
enjoy-digital [Fri, 20 Mar 2020 08:41:56 +0000 (09:41 +0100)]
Merge pull request #433 from gsomlo/gls-rocket-spisdcard

Support SPI-mode SDCard booting on Litex+Rocket (64bit) configuration

4 years agotargets/nexys4ddr: add '--with-spi-sdcard' build option
Gabriel Somlo [Thu, 19 Mar 2020 23:13:47 +0000 (19:13 -0400)]
targets/nexys4ddr: add '--with-spi-sdcard' build option

4 years agoplatforms/nexys4ddr: add spisdcard pins.
Gabriel Somlo [Thu, 19 Mar 2020 22:04:27 +0000 (18:04 -0400)]
platforms/nexys4ddr: add spisdcard pins.

Synchronize with litex-boards commit #57bcadb.

4 years agotargets/nexys4ddr: make sdcard reset conditional
Gabriel Somlo [Thu, 19 Mar 2020 22:20:30 +0000 (18:20 -0400)]
targets/nexys4ddr: make sdcard reset conditional

4 years agosoftware/libbase/spisdcard: fix 4-byte FAT fields on 64-bit CPUs
Gabriel Somlo [Fri, 20 Mar 2020 01:50:54 +0000 (21:50 -0400)]
software/libbase/spisdcard: fix 4-byte FAT fields on 64-bit CPUs

On 64-bit architectures (e.g., Rocket), 'unsigned long' means
eight (not four) bytes. Use 'unsigned int' wherever a FAT data
structure requires a four-byte field!

Signed-off-by: Gabriel Somlo <gsomlo@gmail.com>
4 years agoMerge pull request #432 from esden/csr-doc-fix-int
Sean Cross [Fri, 20 Mar 2020 01:20:02 +0000 (09:20 +0800)]
Merge pull request #432 from esden/csr-doc-fix-int

Don't let python convert lane number to float.

4 years agoDon't let python convert lane number to float.
Piotr Esden-Tempski [Fri, 20 Mar 2020 01:12:41 +0000 (18:12 -0700)]
Don't let python convert lane number to float.

While at it also:
* Don't multilane for reg >= 8 bit width.
* Only check if we should switch to multilane after finding min field width.

4 years agobios: make SPI SDCard boot configs other than linux-on-litex-vexriscv
Gabriel Somlo [Thu, 19 Mar 2020 23:36:24 +0000 (19:36 -0400)]
bios: make SPI SDCard boot configs other than linux-on-litex-vexriscv

When NOT on linux-on-litex-vexriscv, we load 'boot.bin' to MAIN_RAM_BASE,
and jump to it.

Signed-off-by: Gabriel Somlo <gsomlo@gmail.com>
4 years agobios/boot.c: cosmetic: re-indent spisdcardboot() for consistency
Gabriel Somlo [Thu, 19 Mar 2020 23:24:22 +0000 (19:24 -0400)]
bios/boot.c: cosmetic: re-indent spisdcardboot() for consistency

4 years agoMerge pull request #431 from antmicro/hybrid-mac
enjoy-digital [Thu, 19 Mar 2020 21:10:33 +0000 (22:10 +0100)]
Merge pull request #431 from antmicro/hybrid-mac

litex_sim: add support for hybrid mac

4 years agosoftware/libbase/bios: rename spi.c/h to spisdcard.h, also rename functions.
Florent Kermarrec [Thu, 19 Mar 2020 10:02:15 +0000 (11:02 +0100)]
software/libbase/bios: rename spi.c/h to spisdcard.h, also rename functions.

4 years agosoftware/bios/main: revert USDDRPHY_DEBUG (merge issue with SPI SD CARD PR).
Florent Kermarrec [Thu, 19 Mar 2020 09:47:28 +0000 (10:47 +0100)]
software/bios/main: revert USDDRPHY_DEBUG (merge issue with SPI SD CARD PR).

4 years agoMerge pull request #429 from rob-ng15/master
enjoy-digital [Thu, 19 Mar 2020 09:41:09 +0000 (10:41 +0100)]
Merge pull request #429 from rob-ng15/master

SPI hardware bitbanging from SD CARD

4 years agolitex_sim: add support for hybrid mac
Piotr Binkowski [Fri, 13 Mar 2020 14:34:44 +0000 (15:34 +0100)]
litex_sim: add support for hybrid mac

4 years agoMerge pull request #430 from gsomlo/gls-sdclk-stub
enjoy-digital [Thu, 19 Mar 2020 08:05:02 +0000 (09:05 +0100)]
Merge pull request #430 from gsomlo/gls-sdclk-stub

bios/sdcard: provide sdclk_set_clk() stub for clocker-less targets

4 years agobios/sdcard: provide sdclk_set_clk() stub for clocker-less targets
Gabriel Somlo [Sat, 14 Mar 2020 19:54:07 +0000 (15:54 -0400)]
bios/sdcard: provide sdclk_set_clk() stub for clocker-less targets

Targets which lack an adjustable clocker will not expose the required
registers. Provide a stub sdclk_set_clk() routine for those situations.

Signed-off-by: Gabriel Somlo <gsomlo@gmail.com>
4 years agoplatforms/kcu105: fix pcie tx0 p/n swap.
Florent Kermarrec [Wed, 18 Mar 2020 18:05:54 +0000 (19:05 +0100)]
platforms/kcu105: fix pcie tx0 p/n swap.

4 years agoSPI hardware bitbanging from SD CARD
rob-ng15 [Tue, 17 Mar 2020 09:51:11 +0000 (09:51 +0000)]
SPI hardware bitbanging from SD CARD

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.