Commit Graph

1775 Commits

Author SHA1 Message Date
whitequark 94cb3cbcf6 libbase: define intptr_t. 2015-07-30 10:55:12 +03:00
whitequark 4b6bd43d8e Enable ror, ffl1 and addc for OR1K. 2015-07-30 10:55:01 +03:00
whitequark 8db098dd8f Make sure the BIOS file ends on an aligned boundary.
If it does not, the address to which mkmscimg.py writes the CRC
and the address from which it is read could differ.
2015-07-29 12:30:57 +03:00
whitequark a4e14f1058 Don't build base libraries and BIOS with -fPIC after all. 2015-07-29 12:09:05 +03:00
Sebastien Bourdeauducq b7aff65ca9 mor1kx: enable ADDC, CMOV and FFL1 instructions 2015-07-29 00:08:21 +08:00
Sebastien Bourdeauducq f2eff4d10e soc: increase default BIOS size 2015-07-28 22:36:42 +08:00
Florent Kermarrec 5e6178598c Merge branch 'master' of https://github.com/m-labs/misoc 2015-07-28 11:59:48 +02:00
Florent Kermarrec 405efc5560 update lm32 with "Switch to -fPIC" changes. 2015-07-28 11:11:11 +02:00
whitequark 03ebc736b2 Pass -integrated-as to clang.
This avoids misdetection of target assembler by clang.
2015-07-28 11:51:28 +03:00
whitequark 50cf70140b Update libbase/linker-sdram.ld with -fPIC support. 2015-07-26 16:15:02 +03:00
whitequark c8ffd0c9ee Switch to -fPIC.
Using -fPIC for everything allows to link the MiSoC static libraries
both into static images such as the BIOS as well as
into shared libraries.
2015-07-26 16:06:48 +03:00
whitequark a8cd3b9adc Remove useless includes pulled in by libunwind.
These aren't used by libunwind in any configuration and
should be also removed in upstream.
2015-07-26 13:12:23 +03:00
whitequark f6639c1833 Add libunwind. 2015-07-26 12:59:18 +03:00
whitequark 24463a168a Add a stub getenv() implementation.
This is not strictly necessary to build libunwind (it can
be built with -DNDEBUG), but it will be handy while it is
debugged.

It can be removed afterwards.
2015-07-26 12:55:52 +03:00
whitequark b2710e437c Add a stub pthread header.
The header implements only the pthread rwlock interface, which
never actually locks.

This is necessary to build libunwind.
2015-07-26 12:54:40 +03:00
whitequark b5048f6cf1 Add headers for the dynamic linker interface.
These are required for libunwind to discover
the exception frame headers.
2015-07-26 12:53:18 +03:00
whitequark 7a9975ab5a Add a stub C++ standard library.
This is necessary to build libunwind.
2015-07-26 12:49:21 +03:00
whitequark 5502cec3da Add basic inttypes.h.
This is taken from glibc. Only PRI* definitions are imported;
functions are not.
2015-07-26 12:44:13 +03:00
whitequark eef1aa77ef Mark abort() as __attribute__((noreturn)). 2015-07-26 12:43:22 +03:00
whitequark 10f719a830 Add support for fprintf(stderr, ...). 2015-07-26 12:42:53 +03:00
whitequark f5cc6fb72d Don't use clang for anything except or1k. 2015-07-26 10:00:58 +03:00
whitequark d03dabb460 common.mak: Pass -fexceptions to clang and clang++.
This results in generation of .eh_frame sections. These sections
can be discarded during final linking, or included if exception
handling is desired. For exception handling to work, all sources
must be built with -fexceptions.
2015-07-26 03:30:21 +03:00
whitequark 69c2a705bf common.mak: use clang/clang++ to compile C/C++ sources.
Note that -integrated-as is not active by default on OR1K,
so we're still shelling out to binutils to assemble.
It is not yet possible to build everything using -integrated-as.
2015-07-26 03:28:37 +03:00
whitequark 0f47876d2e common.mak: remove RANLIB.
`ranlib` is not necessary on any system we can possibly build for,
as it is superseded by `ar s` for the last ten years or so (at least).
Thus, change ar invocations to `ar crs`, also removing a `l` flag
that is ignored by binutils.
2015-07-26 03:20:23 +03:00
whitequark f500b906e6 common.mak: remove AS.
$(AS) was never used: $(assemble) invokes the C compiler instead.
In case of LLVM, this will allow us to consistently use the LLVM
internal assembler for both inline assembly in C and assembly
sources; so, avoid ever invoking binutils as explicitly.
2015-07-26 02:46:03 +03:00
Florent Kermarrec 8d1c555e36 misoclib/com/uart: remove irq condition parameters and use "non-full" for tx irq, "non-empty" for rx irq.
An optimal solution for both sync and async mode is not easy to implement, it would requires moving CDC out of UART module and handling in the PHY with AsyncFIFO or minimal depth.
For now use the solution that works for both cases. We'll try to optimize that if we have performance issues.
2015-07-25 00:25:09 +02:00
Florent Kermarrec ce11b30140 misoclib: integrate mxcrg.py in mlabs_video target, remove others directory
we should also get rid of mxcrg.v (similar to what is done on papilio or pipstrello)
2015-07-24 23:16:45 +02:00
Florent Kermarrec b75b93df43 misoclib/com/uart: replace revered Migen FIFO function with specific _get_uart_fifo function for our use case. 2015-07-24 14:05:54 +02:00
Florent Kermarrec 0a115f609e litepcie/frontend/dma: group loop index and count in loop_status register (avoid 2 register reads) 2015-07-24 13:52:57 +02:00
Florent Kermarrec d73d75007e misoclib/com/uart: cleanup and add irq condition parameters
- reintroduce RX/TX split (ease comprehension)
- use FIFO wrapper function from Migen.
- add tx_irq_condition and rx_irq_condition
2015-07-24 12:57:42 +02:00
Florent Kermarrec b1ea3340f3 litepcie/frontend/dma: add loop counter (useful to detect missed interrupts) 2015-07-22 22:55:11 +02:00
Florent Kermarrec dfc207aacb litepcie: use data instead of dat in dma_layout (allow use of migen.actorlib.packet modules on dma dataflow) 2015-07-22 21:44:53 +02:00
Florent Kermarrec 40740d3ddc litepcie: use optional platform.misoc_path to add litepcie phy wrapper verilog files
We should eventually try to use python package_data or data_file for that.
2015-07-22 18:09:04 +02:00
Sebastien Bourdeauducq 84514cf8d5 uart: remove option to refill HW from uart_write 2015-07-19 23:41:38 +02:00
Robert Jordens a501d7c52d uart: support async phys 2015-07-19 23:37:00 +02:00
Robert Jordens 097248bce9 uart.c: rx overflow fix and tx simplification
* fixes the clearing of the rx ringbuffer on rx-overflow
* removes tx_level and tx_cts by restricting the ringbuffer
  to at least one slot empty
* agnostic of the details of the tx irq: works for uarts that
  generate tx interrupts on !tx-full or on tx-empty.
* only rx_produce and tx_consume need to be volatile
2015-07-19 23:37:00 +02:00
Florent Kermarrec 35250f5b11 bios: add romboot
When firmware is small enough, it can be interesting to run code from an embedded blockram memory (faster and not impacted by memory controller activity).
It can also be a fallback option in case boot from flash failed.
To use this, define ROM_BOOT_ADDRESS and initialize the blockram with the firmware data.
2015-07-14 18:01:44 +02:00
Florent Kermarrec 6c13879fb6 make.py: use sys.path.insert(0...) to allow external designs to have specific targets derived from a base target 2015-07-13 17:25:50 +02:00
Florent Kermarrec 4dca66b23d misoclib/video/dvisampler: add fifo_depth parameter 2015-07-13 11:03:33 +02:00
Florent Kermarrec e6da1d16b2 wishbone2lasmi: fix "READ_DATA" state 2015-07-09 10:40:32 +02:00
Florent Kermarrec d244eba583 tools/flterm.py: fix kernel-adr support 2015-07-07 14:58:49 +02:00
Florent Kermarrec 0545d49294 liteeth/core: add with_icmp parameter 2015-07-06 21:31:20 +02:00
Florent Kermarrec e011f9378f use sets for leave_out 2015-07-05 22:49:23 +02:00
Florent Kermarrec c100ef6406 liteeth/core/mac: adapt depth on AsyncFIFOs according to phy (reduce ressource usage with MII phy) 2015-07-05 22:45:53 +02:00
Florent Kermarrec c1ca928ec2 liteeth: small logic optimizations on mac (eases timings on spartan6) 2015-07-05 12:31:52 +02:00
Florent Kermarrec 23541b5949 software/bios: call eth_mode only if we have an ethernet mac (we don't need to call it when we have a hardware UDP/IP stack) 2015-07-04 21:04:23 +02:00
Yann Sionneau 10eb07526d bios: show memtest command in help 2015-07-02 17:20:06 +02:00
Sebastien Bourdeauducq 31a447154d soc: support constants without value 2015-06-28 21:35:37 +02:00
Sebastien Bourdeauducq e913fca8a0 libcompiler-rt: add fixdfdi 2015-06-27 23:51:09 +02:00
Joe Britton a1e3fb16ac flterm.py: use serial_for_url 2015-06-26 11:40:33 +02:00