f8f643a02f
cpu/rocket: swap main_mem and io regions
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The total size of RAM (main_mem) can be expected to vary significantly,
and often exceed the size needed for MMIO allocations by a large margin.
As such, place Rocket's MMIO (io regions) below 0x8000_0000, and start
the RAM (main_mem) at 0x8000_0000, with nothing above it to limit its
future growth.
Also, bump the pre-built Rocket verilog submodule to an updated version,
which also comes with matching changes to the way MMIO and RAM accesses
are mapped and routed to their respective AXI interfaces.
Signed-off-by: Gabriel Somlo <gsomlo@gmail.com>
2019-10-09 14:25:41 -04:00
b627a8fe71
cpu: add default io_regions to CPUNone (all address range can be used as IO)
2019-10-09 12:06:21 +02:00
cc245fc8ec
Merge pull request #275 from pcotret/patch-1
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Update README (related to issue #273 )
2019-10-09 11:20:50 +02:00
a6b3aa3c62
soc_core: improve check_io_region error message
2019-10-09 10:47:19 +02:00
dc656d48c2
targets/sim: switch from shadow_base to io_regions
2019-10-09 10:38:22 +02:00
10146abf0a
cpu/rocket: move csr to IO region
2019-10-09 10:24:01 +02:00
7f1d4623ff
build/xilinx/vivado: fix default synth-mode
2019-10-09 10:19:18 +02:00
a4ef9b29b9
soc_core/cpu: add io_regions and deprecate shadow_base (with API retro-compat)
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The shadow_base parameter has always been difficult to apprehend, replace it with
io_regions (uncached regions) defined user or the CPU.
The equivalent of a shadow_base parameter of 0x80000000 in the old API is:
io_regions = {0x80000000: 0x80000000} # origin, length
It's still possible to use shadow_base with retro-compat, but user is encouraged
to update and features will be removed in the future.
2019-10-09 10:15:42 +02:00
e923a88dcc
Update README (related to issue #273 )
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Following my problems with the quick start guide (issue #273 ), I suggest a few modifications to have a "real" quick start guide.
2019-10-09 09:48:32 +02:00
e8b90e8009
Merge pull request #274 from gsomlo/gls-shadow-base
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builder: use the SoC's existing shadow base with get_csr_header()
2019-10-08 21:15:54 +02:00
53777391e8
builder: use the SoC's existing shadow base with get_csr_header()
...
Both the SoC and get_csr_header() have independently set defaults
for the value of 'shadow_base'. If the SoC's value was modified,
ensure that get_csr_header() uses the modified value instead of
its own default.
Signed-off-by: Gabriel Somlo <somlo@cmu.edu>
2019-10-08 14:28:50 -04:00
92975b139e
targets/arty: allow setting synth-mode to yosys with command line: --synth-mode=yosys
2019-10-07 10:38:26 +02:00
4a1cefe946
build/xilinx/vivado: add vivado_build_args/vivado_build_argdict for yosys synthesis mode
2019-10-07 10:37:16 +02:00
3e22d4b9e6
xilinx/common: be sure language is not vhdl when yosys synthesis is used
2019-10-07 10:36:32 +02:00
975bd9be8b
cpu/vexriscv: use specific mem_map for linux variant
2019-10-07 08:50:03 +02:00
2dfe7441d6
Merge pull request #271 from gsomlo/gls-yosys-nowidelut
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RFC: optional '-nowidelut' flag for yosys synth_ecp5
2019-10-06 14:55:44 +02:00
6aa76b1df8
trellis, versa_ecp5: optional '-nowidelut' flag for yosys synth_ecp5
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Passing '-nowidelut' to yosys' synth_ecp5 command improves area utilization
to the point where a (linux variant) rocket-chip based design will fit on a
versa_ecp5 board. Usually '-nowidelut' incurs a timing penalty, but that is
then mitigated by using DSP inference (enabled by default from yosys commit
8474c5b3).
Off by default, this flag can be enabled by adding '--yosys-nowidelut=True'
to the litex/boards/targets/versa_ecp5.py command line.
Signed-off-by: Gabriel Somlo <gsomlo@gmail.com>
2019-10-06 08:37:43 -04:00
c954ff0cfa
Merge pull request #272 from sergachev/fix-comments
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fix comments in icap.py
2019-10-06 12:10:19 +02:00
2f7bd97129
fix comments
2019-10-06 10:47:28 +02:00
ab4a5d1dc1
litex_setup: add litejesd204b
2019-10-04 10:00:45 +02:00
960b25a541
Merge pull request #270 from gsomlo/gls-csr-upper
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soc/integration: ensure CSR constants are in uppercase
2019-10-01 21:40:56 +02:00
41ad08e8ef
soc/cores/icap: simplify ICAPBitstream (untested)
2019-10-01 21:30:14 +02:00
0c2993866c
soc/cores/icap: rename ICAP to ICAPBistream and revert old ICAP
2019-10-01 21:04:49 +02:00
4bb2827e05
Merge pull request #269 from antmicro/rework_icap
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soc: cores: support sending custom bitstream to ICAP
2019-10-01 20:55:28 +02:00
c8790d342a
soc/integration: ensure CSR constants are in uppercase
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Fixup over commit 8be5824e
2019-10-01 12:15:25 -04:00
4423a46ba2
soc: cores: support sending custom bitstream to ICAP
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This adds FIFO that can be used to send any
sequence of commands to the ICAP controller.
2019-10-01 13:44:45 +02:00
427d7af767
soc/interconnect: rename stream_packet to packet & cleanup (with retro-compat)
2019-09-30 23:41:07 +02:00
59bf04d965
soc/interconnect/stream: add separators, mode Actor modules just after Endpoint
2019-09-30 23:33:25 +02:00
59995c5359
soc_zynq: update get_csr_header
2019-09-30 16:00:11 +02:00
4d90058b18
soc/integration: move cpu_interface retro-compatibility to litex/__init__
2019-09-30 11:32:07 +02:00
8be5824e25
soc/integration: use dicts for constants/mem_regions/csr_regions to cleanup/simplify iterations on theses
2019-09-30 10:59:36 +02:00
7b72148c4e
cpu: remove initial SERV support (we'll work in a branch to experiment with it)
2019-09-30 08:35:18 +02:00
63a813af9c
soc_core: fix cpu_type=None case and add test for it
2019-09-30 08:26:38 +02:00
3d257d7266
soc_sdram: remove axi usecase, this was only useful to do some preliminary axi tests.
...
Proper AXI support will be added in the future for SoCs.
2019-09-29 17:33:16 +02:00
e8e57b4f87
soc_core: cleanup/re-align
2019-09-29 17:31:37 +02:00
334ae336bf
soc/integration: rename cpu_interface to export (with retro-compat), re-arrange a bit, add separators
2019-09-29 17:23:26 +02:00
241c3c642b
test/test_targets: update cpu-type to mor1kx
2019-09-29 17:12:15 +02:00
48e5a1d140
soc/cores: uniformize (continue)
2019-09-29 17:04:21 +02:00
e9ed4761b5
soc/cores/gpio: uniformize with others cores
2019-09-29 16:10:44 +02:00
78cecbe36b
soc/cores: rename frequency_meter to freqmeter and uniformize with others cores
2019-09-29 16:08:39 +02:00
7575ecc6ad
soc/cores/ecc: improve readibility, uniformize with others cores
2019-09-29 16:02:04 +02:00
c6fe3f3145
soc/cores/clocks: improve readibility
2019-09-29 15:58:22 +02:00
6fcb12a98f
soc_core: use cpu.data_width to compute csr_alignment (and remove Rocket workaround)
2019-09-29 15:47:10 +02:00
b826c1705f
soc/cores/cpus: improve ident/align, uniformize between cpus
2019-09-29 15:41:36 +02:00
355072c285
soc/cores/cpu: add CPU class and make all CPU inheritate from it
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Also rename reserved_interrupts to interrupts (empty dict is no reserved interrupts)
2019-09-29 15:27:41 +02:00
2c3ad3f96d
soc_sdram: move ControllerInjector to LiteDRAM (LiteDRAMCore)
2019-09-29 14:44:44 +02:00
101f1b1cef
soc/integration: add common.py and move helpers from soc_core to it
2019-09-29 14:22:26 +02:00
68ba1c60be
soc_core: avoid manual listing of support CPUs, just use CPU.keys()
2019-09-28 22:19:23 +02:00
9095b80e89
soc_core: remove add_cpu_or_bridge retro-compatibility (most of the designs have been updated since the change)
2019-09-28 19:01:41 +02:00
8dd2dc1ce8
integration/soc_core: remove csr_map_update (no longer used)
2019-09-28 18:59:30 +02:00
Gabriel Somlo
Florent Kermarrec
Pascal Cotret
Ilia Sergachev
Jan Kowalewski