litex.git
4 years agobios: Fix warning on 64-bit
Benjamin Herrenschmidt [Sat, 9 May 2020 17:43:37 +0000 (19:43 +0200)]
bios: Fix warning on 64-bit

This fixes an incorrect printf format specifier

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
4 years agocore/led: simplify LedChaser (to have the same user interface than GPIOOut).
Florent Kermarrec [Fri, 8 May 2020 20:13:47 +0000 (22:13 +0200)]
core/led: simplify LedChaser (to have the same user interface than GPIOOut).

4 years agocores/led: add LedChaser (now that LiteX is running on FPGA mining boards let's use...
Florent Kermarrec [Fri, 8 May 2020 11:17:59 +0000 (13:17 +0200)]
cores/led: add LedChaser (now that LiteX is running on FPGA mining boards let's use fancy led blinks :))

4 years agointegration/soc: add clock_domain parameter to add_etherbone.
Florent Kermarrec [Fri, 8 May 2020 11:15:44 +0000 (13:15 +0200)]
integration/soc: add clock_domain parameter to add_etherbone.

To allow using a sys_clk < 125MHz with a 1Gbps link.

4 years agointegration/soc: add add_uartbone method (to add a UARTBone aka UART Wishbone bridge).
Florent Kermarrec [Fri, 8 May 2020 09:54:51 +0000 (11:54 +0200)]
integration/soc: add add_uartbone method (to add a UARTBone aka UART Wishbone bridge).

4 years agobios/sdram: fix lfsr typo.
Florent Kermarrec [Thu, 7 May 2020 10:11:59 +0000 (12:11 +0200)]
bios/sdram: fix lfsr typo.

4 years agoMerge pull request #500 from mubes/fixups
enjoy-digital [Thu, 7 May 2020 09:55:58 +0000 (11:55 +0200)]
Merge pull request #500 from mubes/fixups

Fixups

4 years agobuild/xilinx: add disable_constraints parameter to Platform.add_ip.
Florent Kermarrec [Thu, 7 May 2020 09:34:26 +0000 (11:34 +0200)]
build/xilinx: add disable_constraints parameter to Platform.add_ip.

When integrate .xci, we don't necessarily want to apply the default timing/loc
constrants generated by Vivado but our custom ones. Setting disable_constraints
to True allow disabling .xdc generated by the IP.

4 years agoMerge branch 'master' of https://github.com/enjoy-digital/litex into fixups
Dave Marples [Thu, 7 May 2020 08:36:41 +0000 (09:36 +0100)]
Merge branch 'master' of https://github.com/enjoy-digital/litex into fixups

4 years agoSmall fixups to address compiler warnings etc.
Dave Marples [Thu, 7 May 2020 08:26:46 +0000 (09:26 +0100)]
Small fixups to address compiler warnings etc.

4 years agobios/sdram: fix merge typo in lfsr (thanks Benjamin Herrenschmidt).
Florent Kermarrec [Thu, 7 May 2020 06:21:57 +0000 (08:21 +0200)]
bios/sdram: fix merge typo in lfsr (thanks Benjamin Herrenschmidt).

4 years agobios/sdram: Use an LFSR to speed up pseudo-random number generation
Benjamin Herrenschmidt [Wed, 6 May 2020 19:54:27 +0000 (21:54 +0200)]
bios/sdram: Use an LFSR to speed up pseudo-random number generation

This speeds up the memory test by an order of magnitude, esp. on
cores without a hardware multiplier by getting rid of the
multiplication in the loop.

The LFSR implementation comes from microwatt's simple_random test
project.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
4 years agoMerge pull request #499 from DurandA/patch-2
enjoy-digital [Wed, 6 May 2020 16:54:23 +0000 (18:54 +0200)]
Merge pull request #499 from DurandA/patch-2

Add data dirs to manifest

4 years agoboards/platforms: update xilinx programmers.
Florent Kermarrec [Wed, 6 May 2020 14:16:41 +0000 (16:16 +0200)]
boards/platforms: update xilinx programmers.

4 years agobuild/xilinx/vivado: ensure Vivado process our .xdc early.
Florent Kermarrec [Wed, 6 May 2020 11:13:01 +0000 (13:13 +0200)]
build/xilinx/vivado: ensure Vivado process our .xdc early.

When generating the LitePCIe PHY wrappers from the .xci, Vivado is locking the
PCIe lanes to default locations that do not necessarily match the ones used in
the design.

Processing our constraints earlier makes Vivado use our constraints and not the
ones from the generated wrapper.

4 years agoAdd data dirs to manifest
Arnaud Durand [Tue, 5 May 2020 20:15:24 +0000 (22:15 +0200)]
Add data dirs to manifest

4 years agogen/fhdl/verilog: explicitly define input/output/inout wires.
Florent Kermarrec [Tue, 5 May 2020 14:58:33 +0000 (16:58 +0200)]
gen/fhdl/verilog: explicitly define input/output/inout wires.

When integrating designs which set `default_nettype none, the top also needs
to explicitly define the type of the signals.

4 years agotargets/genesys2: set cmd_latency to 1.
Florent Kermarrec [Tue, 5 May 2020 14:33:14 +0000 (16:33 +0200)]
targets/genesys2: set cmd_latency to 1.

4 years agobios: remove usddrphy debug (we'll use a specific debug firmware to fix the usddrphy...
Florent Kermarrec [Tue, 5 May 2020 14:27:21 +0000 (16:27 +0200)]
bios: remove usddrphy debug (we'll use a specific debug firmware to fix the usddrphy corner cases).

4 years agoplatforms/targets: fix CI.
Florent Kermarrec [Tue, 5 May 2020 13:55:09 +0000 (15:55 +0200)]
platforms/targets: fix CI.

4 years agoboards: keep in sync with LiteX-Boards, integrate improvements.
Florent Kermarrec [Tue, 5 May 2020 13:27:56 +0000 (15:27 +0200)]
boards: keep in sync with LiteX-Boards, integrate improvements.

- create_programmer on all platforms.
- input clocks automatically constrainted.
- build/load parameters.

4 years agobuild/lattice/programmer: add UJProg (for ULX3S).
Florent Kermarrec [Tue, 5 May 2020 11:31:58 +0000 (13:31 +0200)]
build/lattice/programmer: add UJProg (for ULX3S).

4 years agobuild/lattice/programmer: make OpenOCDJTAGProgrammer closer to OpenOCD programmer.
Florent Kermarrec [Tue, 5 May 2020 10:17:12 +0000 (12:17 +0200)]
build/lattice/programmer: make OpenOCDJTAGProgrammer closer to OpenOCD programmer.

4 years agobuild/generic_programmer: catch 404 not found when downloading config/proxy.
Florent Kermarrec [Tue, 5 May 2020 10:16:29 +0000 (12:16 +0200)]
build/generic_programmer: catch 404 not found when downloading config/proxy.

4 years agobuild/platform: allow doing a loose lookup_request (return None instead of Constraint...
Florent Kermarrec [Tue, 5 May 2020 09:23:46 +0000 (11:23 +0200)]
build/platform: allow doing a loose lookup_request (return None instead of ConstraintError) and allow subname in lookup_request.

In the platforms, insead of doing:
self.lookup_request("eth_clocks").rx
we can now do:
self.lookup_request("eth_clocks:rx")

This allows some try/except simplifications on constraints.

4 years agobuild/openocd: add find_config method to allow using local config file or download...
Florent Kermarrec [Tue, 5 May 2020 07:56:13 +0000 (09:56 +0200)]
build/openocd: add find_config method to allow using local config file or download it if not available locally.

4 years agocpu/microwatt: fix integration/crt0.S (thanks Benjamin Herrenschmidt).
Florent Kermarrec [Mon, 4 May 2020 15:30:12 +0000 (17:30 +0200)]
cpu/microwatt: fix integration/crt0.S (thanks Benjamin Herrenschmidt).

Tested on Arty A7:

        __   _ __      _  __
       / /  (_) /____ | |/_/
      / /__/ / __/ -_)>  <
     /____/_/\__/\__/_/|_|
   Build your hardware, easily!

 (c) Copyright 2012-2020 Enjoy-Digital
 (c) Copyright 2007-2015 M-Labs

 BIOS built on May  4 2020 17:15:13
 BIOS CRC passed (0adc4193)

 Migen git sha1: 5b5e4fd
 LiteX git sha1: 6f24d46d

--=============== SoC ==================--
CPU:       Microwatt @ 100MHz
ROM:       32KB
SRAM:      4KB
L2:        8KB
MAIN-RAM:  262144KB

--========== Initialization ============--
Initializing SDRAM...
SDRAM now under software control
Read leveling:
m0, b0: |00000000000000000000000000000000| delays: -
m0, b1: |00000000000000000000000000000000| delays: -
m0, b2: |00000000000000000000000000000000| delays: -
m0, b3: |00000000000000000000000000000000| delays: -
m0, b4: |00000000000000000000000000000000| delays: -
m0, b5: |00000000000000000000000000000000| delays: -
m0, b6: |00000111111111111100000000000000| delays: 11+-06
m0, b7: |00000000000000000000000000000000| delays: -
best: m0, b6 delays: 11+-06
m1, b0: |00000000000000000000000000000000| delays: -
m1, b1: |00000000000000000000000000000000| delays: -
m1, b2: |00000000000000000000000000000000| delays: -
m1, b3: |00000000000000000000000000000000| delays: -
m1, b4: |00000000000000000000000000000000| delays: -
m1, b5: |10000000000000000000000000000000| delays: 00+-00
m1, b6: |00000011111111111100000000000000| delays: 12+-06
m1, b7: |00000000000000000000000000000000| delays: -
best: m1, b6 delays: 12+-06
SDRAM now under hardware control
Memtest OK
Memspeed Writes: 129Mbps Reads: 215Mbps

--============== Boot ==================--
Booting from serial...
Press Q or ESC to abort boot completely.
sL5DdSMmkekro
Timeout
No boot medium found

--============= Console ================--

litex>

4 years agoMerge pull request #496 from gsomlo/gls-fix-makefiles
enjoy-digital [Mon, 4 May 2020 13:29:05 +0000 (15:29 +0200)]
Merge pull request #496 from gsomlo/gls-fix-makefiles

software/*/Makefile: no need to copy .S files from CPU directory

4 years agosoftware/*/Makefile: no need to copy .S files from CPU directory
Gabriel Somlo [Mon, 4 May 2020 13:13:32 +0000 (09:13 -0400)]
software/*/Makefile: no need to copy .S files from CPU directory

Signed-off-by: Gabriel Somlo <gsomlo@gmail.com>
4 years agoMerge pull request #494 from shuffle2/patch-2
enjoy-digital [Mon, 4 May 2020 09:53:10 +0000 (11:53 +0200)]
Merge pull request #494 from shuffle2/patch-2

diamond: quiet warning about missing clkin freq for EHXPLLL

4 years agodiamond: quiet warning about missing clkin freq for EHXPLLL
shuffle2 [Mon, 4 May 2020 08:10:09 +0000 (01:10 -0700)]
diamond: quiet warning about missing clkin freq for EHXPLLL

FREQUENCY_PIN_CLKI should be given in mhz

4 years agoCHANGES: update.
Florent Kermarrec [Mon, 4 May 2020 07:59:01 +0000 (09:59 +0200)]
CHANGES: update.

4 years agocpu/microwatt: add powerpc64le-linux-gnu to gcc_triple.
Florent Kermarrec [Mon, 4 May 2020 06:51:38 +0000 (08:51 +0200)]
cpu/microwatt: add powerpc64le-linux-gnu to gcc_triple.

It seems to be what most distros cross-comiplers are using.

4 years agocpu/microwatt: add pythondata and fix build with it.
Florent Kermarrec [Mon, 4 May 2020 06:46:25 +0000 (08:46 +0200)]
cpu/microwatt: add pythondata and fix build with it.

4 years agocpus: use a common definition of gcc_triple for the RISC-V CPUs, reorganize CPU by...
Florent Kermarrec [Sun, 3 May 2020 19:29:54 +0000 (21:29 +0200)]
cpus: use a common definition of gcc_triple for the RISC-V CPUs, reorganize CPU by ISA/Data-Width.

4 years agobios/cmd_mdio.c: fix missing <base/mdio.h> import.
Florent Kermarrec [Sun, 3 May 2020 08:54:35 +0000 (10:54 +0200)]
bios/cmd_mdio.c:  fix missing <base/mdio.h> import.

4 years agocpu/vexriscv: fix flush_cpu_icache, remove workaround on boot.c.
Florent Kermarrec [Sat, 2 May 2020 18:07:52 +0000 (20:07 +0200)]
cpu/vexriscv: fix flush_cpu_icache, remove workaround on boot.c.

4 years agocpus: add nop instruction and use it to simplify the BIOS.
Florent Kermarrec [Sat, 2 May 2020 10:04:46 +0000 (12:04 +0200)]
cpus: add nop instruction and use it to simplify the BIOS.

4 years agocpus: add human_name attribute and use it to simplify the BIOS.
Florent Kermarrec [Sat, 2 May 2020 09:52:58 +0000 (11:52 +0200)]
cpus: add human_name attribute and use it to simplify the BIOS.

4 years agosoftware/libbase/system.c: remove unused includes.
Florent Kermarrec [Sat, 2 May 2020 09:02:51 +0000 (11:02 +0200)]
software/libbase/system.c: remove unused includes.

4 years agoMerge pull request #492 from scanakci/blackparrot_litex
enjoy-digital [Sat, 2 May 2020 09:25:34 +0000 (11:25 +0200)]
Merge pull request #492 from scanakci/blackparrot_litex

BP -> Linux simulation, Comply with pythondata, and README update

4 years agoMerge branch 'master' into blackparrot_litex
enjoy-digital [Sat, 2 May 2020 09:16:33 +0000 (11:16 +0200)]
Merge branch 'master' into blackparrot_litex

4 years agoMerge pull request #474 from fjullien/term_hist_auto_compl
enjoy-digital [Sat, 2 May 2020 08:45:12 +0000 (10:45 +0200)]
Merge pull request #474 from fjullien/term_hist_auto_compl

Terminal: add history and auto completion

4 years agoUpdate README.md
Sadullah Canakci [Sat, 2 May 2020 04:10:06 +0000 (00:10 -0400)]
Update README.md

4 years agoupdate to comply with python-data layout
sadullah [Sat, 2 May 2020 03:44:20 +0000 (23:44 -0400)]
update to comply with python-data layout

4 years agoBP fpga recent version
sadullah [Fri, 1 May 2020 03:02:32 +0000 (23:02 -0400)]
BP fpga recent version

4 years agoFix memory transducer bug, --with-sdram for BIOS works, memspeed works
sadullah [Fri, 1 May 2020 02:39:05 +0000 (22:39 -0400)]
Fix memory transducer bug, --with-sdram for BIOS works, memspeed works

4 years agorebased, minor changes in core.py
sadullah [Tue, 28 Apr 2020 03:56:51 +0000 (23:56 -0400)]
rebased, minor changes in core.py

4 years agoLinux works, LiteDRAM works (need cleaning, temporary push)
sadullah [Tue, 28 Apr 2020 03:03:36 +0000 (23:03 -0400)]
Linux works, LiteDRAM works (need cleaning, temporary push)

4 years agoCreate GETTING STARTED
Sadullah Canakci [Tue, 10 Mar 2020 20:47:26 +0000 (16:47 -0400)]
Create GETTING STARTED

Rename GETTING STARTED to GETTING STARTED.md

Update GETTING STARTED.md

Update GETTING STARTED.md

Update GETTING STARTED.md

4 years agoMerge pull request #483 from ilya-epifanov/lattice-openocd-jtag-programmer-erase...
enjoy-digital [Fri, 1 May 2020 19:18:09 +0000 (21:18 +0200)]
Merge pull request #483 from ilya-epifanov/lattice-openocd-jtag-programmer-erase-flag-and-quiet-output

Lattice OpenOCD JTAG programmer: removed erase flag and made progress output less noisy

4 years agoMerge pull request #491 from gsomlo/gls-spisd-clusters
enjoy-digital [Fri, 1 May 2020 19:17:38 +0000 (21:17 +0200)]
Merge pull request #491 from gsomlo/gls-spisd-clusters

software: spisdcard: cosmetic: avoid filling screen with cluster numbers

4 years ago.travis.yml: disable python3.5 test (nMigen requires 3.6+).
Florent Kermarrec [Fri, 1 May 2020 19:13:12 +0000 (21:13 +0200)]
.travis.yml: disable python3.5 test (nMigen requires 3.6+).

As discussed in #479.

4 years agoCHANGES: update.
Florent Kermarrec [Fri, 1 May 2020 18:13:05 +0000 (20:13 +0200)]
CHANGES: update.

4 years agocpu/minerva: add pythondata and use it to compile the sources.
Florent Kermarrec [Fri, 1 May 2020 18:12:02 +0000 (20:12 +0200)]
cpu/minerva: add pythondata and use it to compile the sources.

4 years agolitex_setup: add nmigen dependency (used to generate Minerva CPU).
Florent Kermarrec [Fri, 1 May 2020 17:09:32 +0000 (19:09 +0200)]
litex_setup: add nmigen dependency (used to generate Minerva CPU).

This also requires Yosys, but Yosys is already expected to be installed separately.

4 years agoCHANGES: start listing changes for next release.
Florent Kermarrec [Fri, 1 May 2020 17:07:43 +0000 (19:07 +0200)]
CHANGES: start listing changes for next release.

4 years agosoftware: spisdcard: cosmetic: avoid filling screen with cluster numbers
Gabriel Somlo [Fri, 1 May 2020 13:45:42 +0000 (09:45 -0400)]
software: spisdcard: cosmetic: avoid filling screen with cluster numbers

Signed-off-by: Gabriel Somlo <gsomlo@gmail.com>
4 years agocpu/software: move flush_cpu_icache/flush_cpu_dcache functions to CPUs.
Florent Kermarrec [Fri, 1 May 2020 10:35:12 +0000 (12:35 +0200)]
cpu/software: move flush_cpu_icache/flush_cpu_dcache functions to CPUs.

4 years agobios: add auto completion for commands
Franck Jullien [Wed, 29 Apr 2020 19:57:13 +0000 (21:57 +0200)]
bios: add auto completion for commands

4 years agobios: switch command handler to a modular format
Franck Jullien [Wed, 29 Apr 2020 19:33:51 +0000 (21:33 +0200)]
bios: switch command handler to a modular format

Command are now described with a structure. A pointer to this
structure is placed in a dedicated linker section.

4 years agobios: move helper functions to their own file
Franck Jullien [Tue, 28 Apr 2020 21:15:04 +0000 (23:15 +0200)]
bios: move helper functions to their own file

4 years agobios: add terminal history
Franck Jullien [Tue, 28 Apr 2020 21:03:18 +0000 (23:03 +0200)]
bios: add terminal history

Terminal history and characters parsing is done in readline.c.
Passing TERM_NO_HIST disable terminal history.
Passing TERM_MINI use a simple terminal implementation in order to save
more space.

4 years agobuilder: add a parameter to pass options to BIOS Makefile
Franck Jullien [Mon, 27 Apr 2020 19:52:36 +0000 (21:52 +0200)]
builder: add a parameter to pass options to BIOS Makefile

4 years agocpu/software: move CPU specific software from the BIOS to the CPU directories.
Florent Kermarrec [Fri, 1 May 2020 06:15:17 +0000 (08:15 +0200)]
cpu/software: move CPU specific software from the BIOS to the CPU directories.

This simplifies the integration of the CPUs' software, avoid complex switches in the code,
and is a first step to make CPUs fully pluggable.

The CPU name is no longer present in the crt0 files (for example crt0-vexriscv-ctr.o
becomes crt0-ctr.o) so users building firmwares externally will have to update their
Makefiles to remove the $(CPU) from crt0-$(CPU)-ctr.o.

4 years agocpu/Minerva: Clone the repository locally for now, we need to create a pythondata...
Florent Kermarrec [Fri, 1 May 2020 09:01:50 +0000 (11:01 +0200)]
cpu/Minerva: Clone the repository locally for now, we need to create a pythondata repository.

4 years agointegration/soc: rename usb_cdc to usb_acm.
Florent Kermarrec [Thu, 30 Apr 2020 19:45:53 +0000 (21:45 +0200)]
integration/soc: rename usb_cdc to usb_acm.

As discussed on Discord recently.

4 years agolitex/__init__.py: remove retro-compat > 6 months old.
Florent Kermarrec [Thu, 30 Apr 2020 19:31:58 +0000 (21:31 +0200)]
litex/__init__.py: remove retro-compat > 6 months old.

4 years agosoc: allow passing custom CPU class to SoC.
Florent Kermarrec [Wed, 29 Apr 2020 18:11:47 +0000 (20:11 +0200)]
soc: allow passing custom CPU class to SoC.

Useful to experiment with custom CPU wrappers and a first step to make CPUs plugable.

4 years agoMerge pull request #488 from enjoy-digital/python3.5
enjoy-digital [Wed, 29 Apr 2020 06:48:06 +0000 (08:48 +0200)]
Merge pull request #488 from enjoy-digital/python3.5

travis: add back test on python3.5 (python3.6 is recommended but we c…

4 years agotravis: add back test on python3.5 (python3.6 is recommended but we can try to keep...
Florent Kermarrec [Wed, 29 Apr 2020 06:00:55 +0000 (08:00 +0200)]
travis: add back test on python3.5 (python3.6 is recommended but we can try to keep 3.5 compatibility until we have good reason to no longer support it).

4 years agoRemoved erase flag and made progress output less noisy
Ilya Epifanov [Tue, 28 Apr 2020 20:04:44 +0000 (22:04 +0200)]
Removed erase flag and made progress output less noisy

4 years agoMerge pull request #481 from betrusted-io/unfstringify
enjoy-digital [Tue, 28 Apr 2020 17:05:08 +0000 (19:05 +0200)]
Merge pull request #481 from betrusted-io/unfstringify

propose patch to not break litex for python 3.5

4 years agopropose patch to not break litex for python 3.5
bunnie [Tue, 28 Apr 2020 16:34:19 +0000 (00:34 +0800)]
propose patch to not break litex for python 3.5

4 years agocreate first release, add CHANGES and note about Python modules in README.
Florent Kermarrec [Tue, 28 Apr 2020 09:36:44 +0000 (11:36 +0200)]
create first release, add CHANGES and note about Python modules in README.

4 years agocpu/serv: switch to pythondata package instead of local git clone.
Florent Kermarrec [Tue, 28 Apr 2020 08:32:13 +0000 (10:32 +0200)]
cpu/serv: switch to pythondata package instead of local git clone.

4 years agoREADME: update Python minimal version to 3.6.
Florent Kermarrec [Tue, 28 Apr 2020 07:02:59 +0000 (09:02 +0200)]
README: update Python minimal version to 3.6.

4 years agolitex_setup: disable automatic clone of BlackParrot/Microwatt CPUs, reorder LiteX...
Florent Kermarrec [Tue, 28 Apr 2020 06:58:26 +0000 (08:58 +0200)]
litex_setup: disable automatic clone of BlackParrot/Microwatt CPUs, reorder LiteX data.

The support is not fully finished, so let the user install the pythondata for these CPUs manually with pip.

4 years agoMerge pull request #399 from mithro/litex-sm2py
enjoy-digital [Tue, 28 Apr 2020 06:34:19 +0000 (08:34 +0200)]
Merge pull request #399 from mithro/litex-sm2py

Converting LiteX to use Python modules.

4 years agosoc/cpu: add memory_buses to cpus and use them in add_sdram.
Florent Kermarrec [Mon, 27 Apr 2020 21:51:17 +0000 (23:51 +0200)]
soc/cpu: add memory_buses to cpus and use them in add_sdram.

This allows the CPU to have direct buses to the memory and replace the Rocket specific code.

4 years agosoc/cpu: rename cpu.buses to cpu.periph_buses.
Florent Kermarrec [Mon, 27 Apr 2020 21:08:15 +0000 (23:08 +0200)]
soc/cpu: rename cpu.buses to cpu.periph_buses.

4 years agoMerge branch 'master' into litex-sm2py
enjoy-digital [Mon, 27 Apr 2020 20:24:10 +0000 (22:24 +0200)]
Merge branch 'master' into litex-sm2py

4 years agoMerge pull request #477 from shuffle2/patch-1
enjoy-digital [Mon, 27 Apr 2020 19:07:27 +0000 (21:07 +0200)]
Merge pull request #477 from shuffle2/patch-1

diamond: fix include paths

4 years agodiamond: fix include paths
shuffle2 [Mon, 27 Apr 2020 18:14:18 +0000 (11:14 -0700)]
diamond: fix include paths

include paths given via tcl script need semicolon separators and forward slash as directory separator (even on windows)

4 years agosoc/cpu: simplify integration of CPU without interrupts (and automatically use UART_P...
Florent Kermarrec [Mon, 27 Apr 2020 17:06:16 +0000 (19:06 +0200)]
soc/cpu: simplify integration of CPU without interrupts (and automatically use UART_POLLING mode in this case).

4 years agoMerge pull request #473 from fjullien/memusage
enjoy-digital [Mon, 27 Apr 2020 16:24:43 +0000 (18:24 +0200)]
Merge pull request #473 from fjullien/memusage

bios: print memory usage

4 years agobios: print memory usage
Franck Jullien [Sat, 25 Apr 2020 21:22:38 +0000 (23:22 +0200)]
bios: print memory usage

Print memory usage during the compilation of bios.elf.

4 years agotools/litex_sim: use similar analyzer configuration than wiki.
Florent Kermarrec [Mon, 27 Apr 2020 13:08:48 +0000 (15:08 +0200)]
tools/litex_sim: use similar analyzer configuration than wiki.

4 years agoMerge pull request #476 from enjoy-digital/serv
enjoy-digital [Mon, 27 Apr 2020 11:59:28 +0000 (13:59 +0200)]
Merge pull request #476 from enjoy-digital/serv

Add SERV support (The SErial RISC-V CPU)

4 years agosoftware/irq: cleanup and make explicit that irqs are not supported with Microwatt...
Florent Kermarrec [Mon, 27 Apr 2020 11:46:12 +0000 (13:46 +0200)]
software/irq: cleanup and make explicit that irqs are not supported with Microwatt and SERV, fix compilation warning.

4 years agoserv: connect reset.
Florent Kermarrec [Mon, 27 Apr 2020 11:26:45 +0000 (13:26 +0200)]
serv: connect reset.

4 years agobuild/icestorm: add verilog_read -defer option to yosys script (changes similar the...
Florent Kermarrec [Mon, 27 Apr 2020 11:17:53 +0000 (13:17 +0200)]
build/icestorm: add verilog_read -defer option to yosys script (changes similar the ones applied to trellis).

4 years agoMerge pull request #475 from gregdavill/read_verilog_defer
enjoy-digital [Mon, 27 Apr 2020 11:13:37 +0000 (13:13 +0200)]
Merge pull request #475 from gregdavill/read_verilog_defer

build/trellis: add verilog_read -defer option to yosys script

4 years agobuild/trellis: add verilog_read -defer option to yosys script
Greg Davill [Mon, 27 Apr 2020 10:40:25 +0000 (20:10 +0930)]
build/trellis: add verilog_read -defer option to yosys script

4 years agoserv: update copyrights (Greg Davill found the typos/issues).
Florent Kermarrec [Mon, 27 Apr 2020 08:27:44 +0000 (10:27 +0200)]
serv: update copyrights (Greg Davill found the typos/issues).

4 years agoserv/cores: fix verilog top level (use serv_rf_top instead of serv_top), working :).
Florent Kermarrec [Sun, 26 Apr 2020 19:05:47 +0000 (21:05 +0200)]
serv/cores: fix verilog top level (use serv_rf_top instead of serv_top), working :).

4 years agoserv: fix ibus/dbus byte/word addressing inconsistency, add missing ibus.sel (thanks...
Florent Kermarrec [Sun, 26 Apr 2020 14:26:15 +0000 (16:26 +0200)]
serv: fix ibus/dbus byte/word addressing inconsistency, add missing ibus.sel (thanks @GregDavill).

4 years agobios/sdram: reduce number of scan loops during cdly scan to speed it up.
Florent Kermarrec [Sat, 25 Apr 2020 10:51:33 +0000 (12:51 +0200)]
bios/sdram: reduce number of scan loops during cdly scan to speed it up.

4 years agotargets/kcu105: use cmd_latency=1.
Florent Kermarrec [Sat, 25 Apr 2020 10:12:27 +0000 (12:12 +0200)]
targets/kcu105: use cmd_latency=1.

4 years agobios/sdram: add some margin on cdly ideal_delay, do the read_leveling even if write_l...
Florent Kermarrec [Sat, 25 Apr 2020 10:11:10 +0000 (12:11 +0200)]
bios/sdram: add some margin on cdly ideal_delay, do the read_leveling even if write_leveling is not optimal.

We need to provide enough information to ease support and understand the issue. The write leveling/read leveling
are doing there best to calibrate the DRAM correctly and memtest gives the final result.