aed0dcee4c
setup: add litex_json2dts to console_scripts.
2020-08-04 16:07:53 +02:00
b64209b38b
Merge pull request #620 from antmicro/add_litex_json2dts
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Add Linux DT generation script
2020-08-04 16:04:57 +02:00
0ca99b798f
build/sim/config: add default_clk/default_clk_freq parameters for retro-compatibility with previous API.
2020-08-04 15:49:53 +02:00
696ea468b8
build/sim: use json_object_get_int64 instead of json_object_get_uint64.
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json_object_get_uint64 does not seem supported with old json-c versions.
2020-08-04 15:49:26 +02:00
382c1a3a44
Merge pull request #619 from antmicro/jboc/sim-clocker
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Allow to define multiple simulation clocks
2020-08-04 15:38:28 +02:00
fafa844aa7
json2dts: Add Linux DT generation script
2020-08-04 15:13:17 +02:00
f778ff09dc
build/sim: improve timebase calculation (strict checks) and update modules
2020-08-04 14:00:58 +02:00
e0f131a317
cores/uart: add txempty/rxfull CSRs.
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Useful in some use cases, like flushing tx.
2020-08-04 13:50:46 +02:00
2a3e39b10e
tools/litex_server: enable read_merger with CommUDP.
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Limited to 4 (current size of the buffer in liteeth.frontend.etherbone).
2020-08-04 10:55:51 +02:00
a5d0a340c3
test: specify wishbone adr_width on AXI(Lite)<-->Wishbone tests and remove debug traces.
2020-08-04 09:39:23 +02:00
eb3374d00a
Merge pull request #617 from gsomlo/gls_rocket_dma
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RFC: enable DMA with Rocket
2020-08-04 09:38:58 +02:00
561331ed97
debug: make CI print offending values
2020-08-03 16:59:39 -04:00
df3428be07
liblitesdcard/sdcard: (temporarily) slow down SDCARD_CLK_FREQ to 25MHz
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Rocket's DMA slave interface (and/or internal routing) currently
appears unable to route DMA writes from LiteSDCard at frequencies
above 25MHz (as tested on nexys4ddr, with Rocket, at 75MHz main
system clock frequency).
Signed-off-by: Gabriel Somlo <gsomlo@gmail.com>
2020-08-03 16:14:11 -04:00
2d9dc8f939
cores/cpu/rocket: expose slave port for DMA
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Signed-off-by: Gabriel Somlo <gsomlo@gmail.com>
2020-08-03 16:14:11 -04:00
d8161e5a86
integration/soc: make DMA slave region cover (at least) the lower 4GB
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Assuming we currently support a 32-bit (4GB) physical address space,
ensure that the dma_bus slave covers the entire range, covering any
possible layout of the LiteX SoC memory map (e.g., rocket has MMIO
in a wide range of registers located below 2GB, and DRAM starting at
the 2GB mark, needing DMA accesses to be routed appropriately for the
entire 4GB physical address range).
Signed-off-by: Gabriel Somlo <gsomlo@gmail.com>
2020-08-03 16:14:11 -04:00
70eae5cbf9
interconnect/wishbone: increase WB address width to 31
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This is needed to support memory regions up to 4GB in size (currently
limited to 2GB, or 0x8000_0000).
FIXME: CI complains about assertions re. axi_lite.address_width in
relationship to len(wishbone.adr) and wishbone_adr_shift, which
seems to be a problem on the 32bit (vexriscv?) CPU used for CI,
but seems to work fine on Rocket.
Signed-off-by: Gabriel Somlo <gsomlo@gmail.com>
foo
2020-08-03 16:11:26 -04:00
b8c9da81ea
soc/interconnect/axi: add Wishbone2AXI converter
2020-08-03 12:50:00 -04:00
2ec4604c41
cores/gpio: add support for Record on GPIOOut, GPIOIn and GPIOInOut.
2020-08-03 18:47:17 +02:00
c1ae7e596c
build/sim: allow for arbitrary clocks generation using clockers
2020-08-03 17:06:38 +02:00
38054874ac
build/sim: use a real timebase in the simulation
2020-08-03 15:21:24 +02:00
5e53e5d73a
Merge pull request #615 from pepijndevos/openfpgaloader
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Add openFPGALoader programmer
2020-08-03 14:01:50 +02:00
79ca4d9640
remove debugging
2020-08-01 11:07:04 +02:00
f6e20700d4
add openFPGAloader programmer
2020-08-01 11:05:09 +02:00
eab0726cc8
cpu/vexriscv/core: use variant name as human_name.
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Allow it to be shown in the BIOS and help support.
2020-07-31 08:59:53 +02:00
e0a763e534
cpu/vexriscv/system.h: provide empty flush_cpu_i/dcache functions for variants with no i/d cache.
2020-07-31 08:58:30 +02:00
3ff1bcaf05
cpu/zynq7000: set csr map to 0x00000000.
2020-07-30 21:37:25 +02:00
c0253e3f77
Merge pull request #611 from antmicro/jboc/axi-lite
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soc/interconnect/axi: add AXILite -> AXI converter
2020-07-30 14:22:21 +02:00
cc8440549f
tools/litex_server/read_merger: review/simplify a bit.
2020-07-30 13:58:40 +02:00
4f382ccf55
Merge pull request #605 from cklarhorst/feature-uart-read-merger
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Merge sequential reads for the UART litex_server backend
2020-07-30 13:56:48 +02:00
e78d950a31
soc/interconnect/axi: add AXILite -> AXI converter
2020-07-30 13:50:34 +02:00
a942e358b9
cpu/blackparrot: minor cleanups, add sim variant (since use different flist).
2020-07-30 12:10:32 +02:00
86e910dfaa
Merge pull request #610 from Dolu1990/vexriscv_smp
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soc/cores/cpu/vexriscv_smp enable dynamic litedram datawidth
2020-07-29 18:11:00 +02:00
023ab15ec1
soc/cores/cpu/vexriscv_smp enable dynamic litedram datawidth
2020-07-29 12:40:16 +02:00
e5cd5d5466
Merge branch 'master' into vexriscv_smp
2020-07-29 11:14:09 +02:00
1938ce363d
integration/soc/add_sdram: allow the CPU to add the direct memory buses when adding the sdram.
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This is useful for CPUs elaborated at buildtime to use sdram's native data width on the CPU memory ports.
2020-07-29 11:10:05 +02:00
6576416b8e
cores/cpu/rocket: add use_memory_bus parameter to easily disable direct memory bus for testing.
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Useful for current tests with LiteSDCard using DMA and that requires the DMA to be connnected to
the DMA bus of Rocket when the direct memory bus is used.
2020-07-29 09:35:15 +02:00
789a70e7c8
Merge branch 'master' into vexriscv_smp
2020-07-28 19:11:54 +02:00
d284dfbea9
soc/cores/cpu/vexriscv_smp config update
2020-07-28 19:07:02 +02:00
0696b409ab
CHANGES: update.
2020-07-28 18:37:23 +02:00
fe38e12b21
cpu/vexriscv_smp: move litedram import, remove os.path import.
2020-07-28 18:10:32 +02:00
59b95fad9c
litex_setup: fix vexriscv-smp repository.
2020-07-28 16:56:32 +02:00
9d052f3830
Merge pull request #607 from Dolu1990/vexriscv_smp
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soc/cores/cpu/vexriscv_smp integration
2020-07-28 16:53:55 +02:00
aa57c7a25e
soc/cores/cpu/vexriscv_smp integration
2020-07-28 16:20:16 +02:00
f87513ab92
liblitesdcard/sdcard: increase SDCARD_CLK_FREQ to 50MHz.
2020-07-28 14:36:49 +02:00
9518ccf453
integration/soc/etherbone: expose ethcore (useful to combine udp/etherbone).
2020-07-27 19:57:29 +02:00
9e07623b61
integration/soc: fix dma_bus typo.
2020-07-27 11:06:09 +02:00
2034c563b0
Merge sequential reads for the UART litex_server backend
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The UART backend writes [read identifier, num_reads, addr] for
every read request.
Etherbone packets are able to include multiple read requests.
Therefore, it is beneficial to merge sequential read requests to reduce writes
(and possible latency overhead).
Benchmark:
A typical litescope fetch script with the following
signals [ddrphy.dfi,cpu.ibus.cyc,cpu.ibus.stb] results in 1 read for the
data_valid register and 24 sequential reads for the scope data per timestamp.
Fetching data for a capture length of 512 over a 921600 baud UART (arty board)
took:
205s (current master branch)
18s (with this merge function)
The proposed merger only merges read requests from one etherbone packet
at a time and doesn't change the read order.
2020-07-26 13:19:32 +02:00
1fdffdfd6b
targets: keep in sync with litex-boards.
2020-07-24 16:34:17 +02:00
8a0684b15e
Merge pull request #604 from antmicro/jboc/axi-lite
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Improve AXI Lite data width converters
2020-07-24 14:54:11 +02:00
879e6ffe73
soc/interconnect/axi: add basic AXI Lite up-converter
2020-07-24 13:47:18 +02:00
Florent Kermarrec
Mateusz Holenko
Jędrzej Boczar
Gabriel Somlo
Pepijn de Vos
Dolu1990
Christian Klarhorst