litex.git
4 years agoMerge pull request #517 from ozbenh/csr-access-rework
enjoy-digital [Thu, 14 May 2020 13:04:52 +0000 (15:04 +0200)]
Merge pull request #517 from ozbenh/csr-access-rework

csr: Rework accessors

4 years agocsr: Rework accessors
Benjamin Herrenschmidt [Wed, 13 May 2020 11:50:44 +0000 (21:50 +1000)]
csr: Rework accessors

Have all the new compound accessors be written in terms of the simple
ones and fix how CSR_ACCCESORS_DEFINED can be used to override the
simple ones but keep the definitions of the other ones around.

This *should* also also fix incorrect multiple accesses done
by  64-bit CPUs to 32-bit CSR busses, and make the accessors not
depend on CONFIG_CSR_ALIGNMENT being the same as sizeof(unsigned long)*8

In addition, the generated csr.h now will include system.h
always when with_access_functions is True. This guarantees that the
higher level accessors are defined. The extern prototypes for the
simple accessors when CSR_ACCCESORS_DEFINED are removed and system.h
is responsible for providing them. It is also added to hw/common.h

This allows system.h to set CSR_ACCCESORS_DEFINED when necessary, in
which case it's responsible for both declaring and defining the simple
accessors. That way, it can make them inline rather than forcing them
to be extern which at least on microwatt saves spaces.

One can continue to use -DCSR_ACCCESORS_DEFINED but in that case a system.h
will have to be provided with at least the extern definitions.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
4 years agoCHANGES: update.
Florent Kermarrec [Thu, 14 May 2020 07:34:37 +0000 (09:34 +0200)]
CHANGES: update.

4 years agoMerge pull request #518 from enjoy-digital/csr_base
enjoy-digital [Thu, 14 May 2020 06:02:37 +0000 (08:02 +0200)]
Merge pull request #518 from enjoy-digital/csr_base

export: add define of CSR_BASE if not already defined and use it for …

4 years agoMerge pull request #523 from DurandA/patch-5
enjoy-digital [Thu, 14 May 2020 05:17:46 +0000 (07:17 +0200)]
Merge pull request #523 from DurandA/patch-5

Update litex_term help

4 years agoUpdate litex_term help
Arnaud Durand [Wed, 13 May 2020 20:50:09 +0000 (22:50 +0200)]
Update litex_term help

Specify the use of kernel address with flash flag.

4 years agoplatforms/nexys4ddr: add card detect pin to sdcard.
Florent Kermarrec [Wed, 13 May 2020 17:11:46 +0000 (19:11 +0200)]
platforms/nexys4ddr: add card detect pin to sdcard.

4 years agointegration/soc: review/simplify interconnect and add logger.info.
Florent Kermarrec [Wed, 13 May 2020 16:26:54 +0000 (18:26 +0200)]
integration/soc: review/simplify interconnect and add logger.info.

4 years agoMerge pull request #519 from ozbenh/point2point
enjoy-digital [Wed, 13 May 2020 14:48:21 +0000 (16:48 +0200)]
Merge pull request #519 from ozbenh/point2point

soc: Revive generation of a PointToPoint interconnect

4 years agosoc: Revive generation of a PointToPoint interconnect
Benjamin Herrenschmidt [Wed, 13 May 2020 14:06:15 +0000 (00:06 +1000)]
soc: Revive generation of a PointToPoint interconnect

When there's only one master, one slave, and that slave is at 0

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
4 years agoexport: add define of CSR_BASE if not already defined and use it for CSRs definitions...
Florent Kermarrec [Wed, 13 May 2020 13:52:09 +0000 (15:52 +0200)]
export: add define of CSR_BASE if not already defined and use it for CSRs definitions/accesses.

This will allow more flexibility when integrating standalone cores.

4 years agotest/test_targets: workaround to fix travis.
Florent Kermarrec [Wed, 13 May 2020 09:04:40 +0000 (11:04 +0200)]
test/test_targets: workaround to fix travis.

4 years agocpu/soc_core: automatically set csr mapping to 0x00000000 when using CPUNone, remove...
Florent Kermarrec [Wed, 13 May 2020 07:31:20 +0000 (09:31 +0200)]
cpu/soc_core: automatically set csr mapping to 0x00000000 when using CPUNone, remove csr_base parameter that was used for that.

4 years agobios/boot: review/fix #503.
Florent Kermarrec [Wed, 13 May 2020 06:44:17 +0000 (08:44 +0200)]
bios/boot: review/fix #503.

- copy_image_from_flash_to_ram is now used by all CPUs.
- copy_image_from_flash_to_ram already show the flash address, no need to duplicate it.

4 years agoMerge pull request #503 from rprinz08/master
enjoy-digital [Wed, 13 May 2020 06:36:43 +0000 (08:36 +0200)]
Merge pull request #503 from rprinz08/master

BIOS boot firmware from SPI with address offset

4 years agoMerge pull request #513 from mubes/bios_linker
enjoy-digital [Wed, 13 May 2020 05:52:37 +0000 (07:52 +0200)]
Merge pull request #513 from mubes/bios_linker

Bios linker edits to prevent inappropriate optimisation

4 years agoBios linker edits to prevent inappropriate optimisation
Dave Marples [Tue, 12 May 2020 22:32:49 +0000 (23:32 +0100)]
Bios linker edits to prevent inappropriate optimisation

4 years agofixed bug in BIOS spi flash "fw" command
rprinz08 [Tue, 12 May 2020 14:58:42 +0000 (16:58 +0200)]
fixed bug in BIOS spi flash "fw" command

4 years agoremoved FLASH_BOOT_OFFSET, replaced memcyp with copy_image_from_flash_to_ram
rprinz08 [Tue, 12 May 2020 14:57:21 +0000 (16:57 +0200)]
removed FLASH_BOOT_OFFSET, replaced memcyp with copy_image_from_flash_to_ram

4 years agocores/spi_flash: add back old SpiFlashDualQuad and rename new one as SpiFlashQuadRead...
Florent Kermarrec [Tue, 12 May 2020 14:51:47 +0000 (16:51 +0200)]
cores/spi_flash: add back old SpiFlashDualQuad and rename new one as SpiFlashQuadReadWrite.

4 years agoMerge pull request #478 from antmicro/extended_spi_flash
enjoy-digital [Tue, 12 May 2020 14:42:01 +0000 (16:42 +0200)]
Merge pull request #478 from antmicro/extended_spi_flash

Extended SPI flash support

4 years agoMerge pull request #510 from mubes/colorlight_usb
enjoy-digital [Tue, 12 May 2020 14:35:29 +0000 (16:35 +0200)]
Merge pull request #510 from mubes/colorlight_usb

Colorlight usb

4 years agointegration/soc: review/simplify changes for standalone cores.
Florent Kermarrec [Tue, 12 May 2020 14:18:26 +0000 (16:18 +0200)]
integration/soc: review/simplify changes for standalone cores.

- do the CSR alignment update only if CPU is not CPUNone.
- revert PointToPoint interconnect when 1 master and 1 slave since this will
break others use cases and will prevent mapping slave to a specific location.
It's probably better to let the synthesis tools optimize the 1:1 mapping directly.
- add with_soc_interconnect parameter to add_sdram that defaults to True. When
set to False, only the LiteDRAMCore will be instantiated and interconnect with
the SoC will not be added.

4 years agoFix dumb missing line
Dave Marples [Tue, 12 May 2020 13:40:11 +0000 (14:40 +0100)]
Fix dumb missing line

4 years agoMerge pull request #511 from ozbenh/standalone-cores
enjoy-digital [Tue, 12 May 2020 12:55:44 +0000 (14:55 +0200)]
Merge pull request #511 from ozbenh/standalone-cores

Improve standalone cores

4 years agointerconnect/wishbonebridge: refresh/simplify.
Florent Kermarrec [Tue, 12 May 2020 10:53:01 +0000 (12:53 +0200)]
interconnect/wishbonebridge: refresh/simplify.

This should also improve Wishbone timings.

Tested on iCEBreaker:
./icebreaker.py --cpu-type=None --uart-name=uartbone --csr-csv=csr.csv --build --flash

With the following script:

#!/usr/bin/env python3

import sys

from litex import RemoteClient

wb = RemoteClient()
wb.open()

# # #

print("scratch: 0x{:08x}".format(wb.regs.ctrl_scratch.read()))

errors = 0
for i in range(2):
for j in range(32):
wb.write(wb.mems.sram.base + 4*j, i + j)
for j in range(32):
if wb.read(wb.mems.sram.base + 4*j) != (i + j):
errors += 1
print("sram errors: {:d}".format(errors))

# # #

wb.close()

4 years agoWB2CSR: Use CSR address_width for the wishbone bus
Benjamin Herrenschmidt [Tue, 12 May 2020 11:37:36 +0000 (21:37 +1000)]
WB2CSR: Use CSR address_width for the wishbone bus

Currently, we create a wishbone interface with the default address
width (30 bits) for the bridge. Instead, create an interface that
has the same number of address bits as the CSR bus.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
4 years agosoc_core: Add option to override CSR base
Benjamin Herrenschmidt [Tue, 12 May 2020 11:35:12 +0000 (21:35 +1000)]
soc_core: Add option to override CSR base

When creating standalone IP cores such as standalone LiteDRAM without
a CPU, the CSR are presented externally via a wishbone with just enough
address bits to access individual CSRs (14), and no address decoding
otherwise. It is expected that the design using such core will have
its own address decoder gating cyc/stb.

However, such a design might still need to use LiteX code such as
the sdram init code, which relies on the generated csr.h. Thus we
want to be able to control the CSR base address used by that generated
csr.h.

This could be handled instead by having the "host" code provide
modified csr_{read,write}_simple() that include the necessary base
address. However, such an approach would make things complicated
if the design includes multiple such standalone cores with separate
CSR busses (such as LiteDRAM and LiteEth).

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
4 years agosoc: Don't update CSR alignment when there is no CPU
Benjamin Herrenschmidt [Tue, 12 May 2020 11:31:23 +0000 (21:31 +1000)]
soc: Don't update CSR alignment when there is no CPU

The alignment specified by the standalone core config should
be honored.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
4 years agosoc: Don't create a wishbone slave to LiteDRAM with no CPU
Benjamin Herrenschmidt [Tue, 12 May 2020 11:30:19 +0000 (21:30 +1000)]
soc: Don't create a wishbone slave to LiteDRAM with no CPU

When creating a standalone LiteDRAM core with no CPU, there is
no need to create a wishbone slave to LiteDRAM interface.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
4 years agoBring into line with master
Dave Marples [Tue, 12 May 2020 11:28:09 +0000 (12:28 +0100)]
Bring into line with master

4 years agosoc: Don't create a share intercon with only one master and one slave
Benjamin Herrenschmidt [Tue, 12 May 2020 10:58:19 +0000 (20:58 +1000)]
soc: Don't create a share intercon with only one master and one slave

This creates a lot of useless churn in the resulting verilog. Instead
use a point to point interconnect in that case.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
4 years agoMerge pull request #506 from scanakci/blackparrot_litex
enjoy-digital [Tue, 12 May 2020 09:41:25 +0000 (11:41 +0200)]
Merge pull request #506 from scanakci/blackparrot_litex

Update README and core.py for Blackparrot and change vivado command for systemverilog

4 years agoMerge pull request #508 from antmicro/update_litesdcard
enjoy-digital [Tue, 12 May 2020 09:38:09 +0000 (11:38 +0200)]
Merge pull request #508 from antmicro/update_litesdcard

Update Litex bios to handle updated litesdcard.

4 years agoAddition of boot address parameter for trellis builds
Dave Marples [Tue, 12 May 2020 08:41:37 +0000 (09:41 +0100)]
Addition of boot address parameter for trellis builds

4 years agoUpdate Litex bios to handle updated litesdcard.
Kamil Rakoczy [Fri, 3 Apr 2020 12:58:36 +0000 (14:58 +0200)]
Update Litex bios to handle updated litesdcard.

4 years agoUpdate README.md and core.py for BlackParrot
sadullah [Tue, 12 May 2020 04:58:19 +0000 (00:58 -0400)]
Update README.md and core.py for BlackParrot

4 years agoVivado Command Update for Systemverilog
sadullah [Fri, 8 May 2020 06:17:37 +0000 (02:17 -0400)]
Vivado Command Update for Systemverilog

Add BlackParrot to LiteX setup file

4 years agoMerge pull request #505 from DurandA/patch-3
enjoy-digital [Mon, 11 May 2020 20:53:31 +0000 (22:53 +0200)]
Merge pull request #505 from DurandA/patch-3

Enable 1x mode on SPI flash

4 years agosoc: remove with_wishbone (a SoC always always has a Bus) and expose more bus parameters.
Florent Kermarrec [Mon, 11 May 2020 20:39:17 +0000 (22:39 +0200)]
soc: remove with_wishbone (a SoC always always has a Bus) and expose more bus parameters.

4 years agoEnable 1x mode on SPI flash
Arnaud Durand [Mon, 11 May 2020 20:12:40 +0000 (22:12 +0200)]
Enable 1x mode on SPI flash

4 years agobuild/lattice/diamond/clock_constraints: review and improve similarities with the...
Florent Kermarrec [Mon, 11 May 2020 08:50:25 +0000 (10:50 +0200)]
build/lattice/diamond/clock_constraints: review and improve similarities with the others build backends.

4 years agoMerge pull request #502 from shuffle2/master
enjoy-digital [Mon, 11 May 2020 07:55:52 +0000 (09:55 +0200)]
Merge pull request #502 from shuffle2/master

diamond: project generation improvements

4 years agoMerge pull request #490 from daveshah1/rdimm_bside_init
enjoy-digital [Mon, 11 May 2020 07:42:55 +0000 (09:42 +0200)]
Merge pull request #490 from daveshah1/rdimm_bside_init

Add RDIMM side-B inversion support

4 years agoMerge branch 'master' into rdimm_bside_init
enjoy-digital [Mon, 11 May 2020 07:42:35 +0000 (09:42 +0200)]
Merge branch 'master' into rdimm_bside_init

4 years agolattice/icestorm: add ignoreloops/seed support (similar to trellis) and icestorm_args.
Florent Kermarrec [Mon, 11 May 2020 07:33:26 +0000 (09:33 +0200)]
lattice/icestorm: add ignoreloops/seed support (similar to trellis) and icestorm_args.

4 years agolattice/trellis: simplify seed support and add it to trellis_args.
Florent Kermarrec [Mon, 11 May 2020 07:26:12 +0000 (09:26 +0200)]
lattice/trellis: simplify seed support and add it to trellis_args.

4 years agoMerge pull request #484 from ilya-epifanov/lattice-trellis-toolchain-seed
enjoy-digital [Mon, 11 May 2020 07:13:26 +0000 (09:13 +0200)]
Merge pull request #484 from ilya-epifanov/lattice-trellis-toolchain-seed

Can now pass `--seed` to `nextpnr-ecp5` via `TrellisToolchain` `kwargs`

4 years agoMerge pull request #485 from ilya-epifanov/cpu-imac-config-for-vexriscv
enjoy-digital [Mon, 11 May 2020 06:58:28 +0000 (08:58 +0200)]
Merge pull request #485 from ilya-epifanov/cpu-imac-config-for-vexriscv

Added `imac` config for CPUs …

4 years agoMerge branch 'master' into cpu-imac-config-for-vexriscv
enjoy-digital [Mon, 11 May 2020 06:58:20 +0000 (08:58 +0200)]
Merge branch 'master' into cpu-imac-config-for-vexriscv

4 years agointegration/soc/add_adapter: rename is_master to direction.
Florent Kermarrec [Mon, 11 May 2020 06:47:34 +0000 (08:47 +0200)]
integration/soc/add_adapter: rename is_master to direction.

4 years agoMerge pull request #504 from sergachev/master
enjoy-digital [Mon, 11 May 2020 06:34:03 +0000 (08:34 +0200)]
Merge pull request #504 from sergachev/master

integration/soc: fix add_adapter for slaves

4 years agointegration/soc: fix add_adapter for slaves
Ilia Sergachev [Sun, 10 May 2020 09:32:34 +0000 (11:32 +0200)]
integration/soc: fix add_adapter for slaves

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 agoBIOS boot firmware from SPI with address offset
rprinz08 [Sat, 9 May 2020 17:20:32 +0000 (19:20 +0200)]
BIOS boot firmware from SPI with address offset

4 years agodiamond: close project when done
Shawn Hoffman [Sat, 9 May 2020 09:16:24 +0000 (02:16 -0700)]
diamond: close project when done

Avoids ".recovery file is present" prompt.

4 years agodiamond: clock constraint improvements
Shawn Hoffman [Sat, 9 May 2020 04:00:24 +0000 (21:00 -0700)]
diamond: clock constraint improvements

Specify NET or PORT for freq constraints

Add equivalent timing closure check that diamond ui uses,
and default to asserting check has passed

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