4e168221d8
bios: fix riscv processor print
2018-01-23 10:33:05 +01:00
d448874879
sim: rename top module to dut and use --top-module parameter (needed for picorv32 simulation)
2018-01-23 10:28:16 +01:00
3ac28ed6f7
platform/arty.py: Move Pmod definitions to 'connectors' section.
2018-01-23 16:11:25 +10:30
ef511e7edc
Specify top-level module in Lattice Diemond build script.
...
When building multi-source files the toolchain gets confused as to which
module is top-level. This ensures that the build_name of the design is
selected.
2018-01-23 01:17:04 +00:00
ef6c517dad
Build top module as 'dut' in Verilator and set it as top-level.
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When building a design with PicoRV32 we end up with multiple top-level
modules and Verilator becomes confused as to which is the right one.
This change ensures the dut.v generated by the sim build process has
it's top-level name set to 'dut' and that verilator is invoked with this
name.
2018-01-23 01:15:28 +00:00
a385143779
Merge pull request #59 from q3k/for-upstream/multiple-synthesis-directives
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Allow for multiple synthesis directives in specials.
2018-01-23 01:43:23 +01:00
21bd26dcdd
Allow for multiple synthesis directives in specials.
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This is needed to specify timing constraints on some Lattice Diamond
library specials, like the EHXPLLL.
To keep backwards compatibility we allow the directive to still be a
single string. If it's not, we assume it's an iterable.
2018-01-23 00:27:49 +00:00
67f8718b26
minor cleanup
2018-01-23 00:35:20 +01:00
d07ddd11d9
Merge pull request #58 from q3k/for-upstream/picorv32-support
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Implement IRQ for PicoRV32 on LiteX
2018-01-22 22:09:46 +01:00
6daf3eabc5
Implement IRQ software support for RISC-V.
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Well, at least PicoRV32-specific. Turns out there is no RISC-V
specification for simple microcontroller-like interrupts, so PicoRV32
implements its' own based on custom opcodes.
It's somewhat esoteric, and for example doesn't offer a global interrupt
enable/disable. For this we implement a thin wrapper in assembly and
then expose it via a few helpers in irq.h.
2018-01-22 18:50:26 +00:00
2108c97b9b
Import PicoRV32-specific instruction macros.
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These come from the PicoRV32 repo and are released under the public
domain [1].
[1] - 70f3c33ac8/firmware/custom_ops.S
2018-01-22 18:50:26 +00:00
cf74c781f4
Write init files that respect CPU's endianness.
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This is required for PicoRV32 support. We also drive-by enable
explicit specification of run= in Builder.build() by callers.
2018-01-22 18:50:26 +00:00
7176492231
Set the MABI and MArch of the riscv target.
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Again, this should be tunable, and synchronized with the core settings.
2018-01-22 18:50:26 +00:00
7ea5a26734
Enable hardware multiplier and divider in PicoRV32
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This should become tunable later once we can configure whether we link
in the soft mul library or not.
2018-01-22 18:50:26 +00:00
75e230aae7
Replace __riscv__ macros with __riscv.
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The __riscv__ form is deprecated [1].
[1] - https://github.com/riscv/riscv-toolchain-conventions#cc-preprocessor-definitions
2018-01-22 18:50:26 +00:00
20ed23443b
Export trap signal from PicoRV32.
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This is useful for handling crashes from hardware.
2018-01-22 18:50:26 +00:00
b0be563012
Bump PicoRV32 version.
2018-01-22 18:50:26 +00:00
75e7f9505a
BIOS: Flashboot without main ram
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Modified flashboot() to skip copy to main ram if there is no main
ram, and instead execute in place out of SPI flash. (For this to
work the linker .ld will also need to redirect references to be
inside the SPI flash mapping.)
2018-01-20 15:05:47 +11:00
3a5f93db5d
software/bios: add litex logo
2018-01-19 18:41:13 +01:00
d6877300c2
Merge pull request #56 from cr1901/mimasv2
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Add mimasv2 platform (pulled from litex-buildenv).
2018-01-19 17:59:47 +01:00
c553fe2bf3
Add mimasv2 platform (pulled from litex-buildenv).
2018-01-19 06:16:04 -05:00
d6f2f63794
Merge pull request #53 from mithro/allow-forcing-colorama
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Support forcing colorama colors on.
2018-01-18 16:33:02 +11:00
ead88ed66d
Support forcing colorama colors on.
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This is needed if you want colors but are using pipes and similar.
2018-01-18 14:41:45 +11:00
fcc22350fb
Merge pull request #52 from ewen-naos-nz/tftp-alt-port
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BIOS: Support alternate TFTP server port
2018-01-18 13:40:28 +11:00
5ce8ca8e9b
BIOS: TFTP: try UDP/69 if specified port fails
2018-01-18 13:10:28 +11:00
cb31266500
BIOS: set TFTP_SERVER_PORT from enviroment
2018-01-18 13:09:34 +11:00
97f381baa6
BIOS: allow BIOS to specify TFTP server port
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Swaps hard coded PORT_OUT in tftp.c for parameter on the tftp_get()
and tftp_put() functions. Allow TFTP_SERVER_PORT used by BIOS to be
set at compile time from compiler defines.
2018-01-18 12:03:35 +11:00
e06bb3724b
Merge pull request #51 from felixheld/liteeth-untangling
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Include the ethernet related header files conditionally
2018-01-16 21:37:24 +01:00
21ad435def
Include the ethernet related header files conditionally
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Only including those header files in the litex firmware is the first step to
move the firmware parts of liteeth to the liteeth tree.
2018-01-16 14:33:49 +11:00
ab1146e1b0
Merge pull request #49 from mithro/fix-uart-override
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soc_core: Don't fail if name is the same.
2018-01-13 19:12:50 +11:00
3d40ad0a82
soc_core: Don't fail if name is the same.
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Otherwise you can't override the UART with another UART, you get an
error like;
```
File "/home/tansell/github/timvideos/HDMI2USB-litex-firmware/third_party/litex/litex/soc/integration/soc_core.py", line 176, in __init__
interrupt, mod_name, interrupt_rmap[interrupt]))
AssertionError: Interrupt vector conflict for IRQ 2, user defined uart conflicts with SoC inbuilt uart
```
2018-01-13 19:10:57 +11:00
bebaef1e25
Merge pull request #48 from mithro/fix-constants
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cpu_interface: Fix indenting on constant generation.
2018-01-13 19:07:04 +11:00
f6f73cf13c
cpu_interface: Fix indenting on constant generation.
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This was preventing constants from getting added to the csr.h header
file.
2018-01-13 19:05:26 +11:00
d37cf226d6
Merge pull request #47 from felixheld/indentation-fixes
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Fix all remaining indentation issues in python code
2018-01-13 13:29:29 +11:00
6318a2b29a
Fix all remaining indentation issues in python code
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I ran a script that shouldn't have missed any tab in the python source files.
2018-01-13 13:19:36 +11:00
782711e5a9
bios/sdram: make read leveling robust for KUS SDRAM
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Increases the initial delay step into the valid read window as
with the original delay I was not getting out of the noisy
transition window, as evidenced by seeing read delay windows
of only 8 LSB ~10% of the time, leading to failing memory
tests
2018-01-12 19:23:08 +01:00
5c95c8ead0
Merge pull request #44 from felixheld/nexys_video-dram-fix
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Fix DDR3 on nexys_video
2018-01-12 14:08:03 +11:00
c2c622691c
Merge pull request #45 from felixheld/arty-ddr3-fix
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fix DDR3 on arty
2018-01-12 14:07:32 +11:00
9eb1beea04
fix DDR3 on arty
2018-01-12 13:54:10 +11:00
4a3454107a
fix DDR3 on nexys_video
2018-01-12 13:33:13 +11:00
7b6ba372c8
Merge pull request #43 from felixheld/programmer-error-fix
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fix the unsupported programmer case for kc705 and minispartan6
2018-01-11 08:21:46 +01:00
23585385c0
fix the unsupported programmer case for kc705 and minispartan6
2018-01-11 18:15:11 +11:00
b2beec267b
Merge pull request #42 from felixheld/requirements-fix
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add pyserial to the package requirements
2018-01-11 17:46:21 +11:00
99cf4d9f26
add pyserial to the package requirements
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litex_term requires pyserial
2018-01-11 17:43:16 +11:00
10000eb607
build/xilinx/vivado: only generate constraints that are not empty
2018-01-08 17:03:19 +01:00
5681a3c1a9
bios/sdram: revert capability to do manual read leveling since still needed with some targets
2018-01-08 12:04:33 +01:00
03eb137449
bios/sdram: fix data error reporting
2018-01-08 11:43:49 +01:00
22ff745027
bump year
2018-01-08 11:43:13 +01:00
ee6b33e9d3
build: add Inverted property to IOs to ease inverting signals and propagate property to cores
2018-01-06 01:33:02 +01:00
621aaf6988
soc/integration/soc_core: avoid removing uart interrupts (break some designs)
2017-12-30 18:41:49 +01:00
Florent Kermarrec
Paul Schulz
Sergiusz Bazanski
Ewen McNeill
William D. Jones
Tim Ansell
Felix Held
Chris Ballance