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170 commits

Author SHA1 Message Date
Florent Kermarrec
d149f386c9 allow multiple riscv32 softcores (use picorv32 cpu_type instead of riscv32) 2018-05-09 13:26:55 +02:00
Florent Kermarrec
4324c6f666 bios/sdram: update kuddrphy initialization procedure 2018-03-08 13:54:30 +01:00
Florent Kermarrec
90dcd45f0b soc/software/main: go to new line at startup 2018-03-07 21:39:10 +01:00
Florent Kermarrec
6706b24167 software/bios/main: add missing space 2018-03-07 15:24:39 +01:00
enjoy-digital
7b5bd4041a
Merge pull request #57 from rohitk-singh/master 
WIP - BIOS: Flashboot without main ram
 2018-02-10 21:37:38 +01:00
Florent Kermarrec
4f2725809e software/common: revert PYTHON to python3 (since breaking things) 2018-01-23 10:39:13 +01:00
Florent Kermarrec
4e168221d8 bios: fix riscv processor print 2018-01-23 10:33:05 +01:00
Florent Kermarrec
67f8718b26 minor cleanup 2018-01-23 00:35:20 +01:00
Sergiusz Bazanski
6daf3eabc5 Implement IRQ software support for RISC-V. 
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
Sergiusz Bazanski
2108c97b9b Import PicoRV32-specific instruction macros. 
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
Sergiusz Bazanski
75e230aae7 Replace __riscv__ macros with __riscv. 
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
Ewen McNeill
75e7f9505a BIOS: Flashboot without main ram 
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
Florent Kermarrec
3a5f93db5d software/bios: add litex logo 2018-01-19 18:41:13 +01:00
Tim Ansell
fcc22350fb
Merge pull request #52 from ewen-naos-nz/tftp-alt-port 
BIOS: Support alternate TFTP server port
 2018-01-18 13:40:28 +11:00
Ewen McNeill
5ce8ca8e9b BIOS: TFTP: try UDP/69 if specified port fails 2018-01-18 13:10:28 +11:00
Ewen McNeill
cb31266500 BIOS: set TFTP_SERVER_PORT from enviroment 2018-01-18 13:09:34 +11:00
Ewen McNeill
97f381baa6 BIOS: allow BIOS to specify TFTP server port 
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
Felix Held
21ad435def Include the ethernet related header files conditionally 
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
Chris Ballance
782711e5a9 bios/sdram: make read leveling robust for KUS SDRAM 
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
Florent Kermarrec
5681a3c1a9 bios/sdram: revert capability to do manual read leveling since still needed with some targets 2018-01-08 12:04:33 +01:00
Florent Kermarrec
03eb137449 bios/sdram: fix data error reporting 2018-01-08 11:43:49 +01:00
Florent Kermarrec
22ff745027 bump year 2018-01-08 11:43:13 +01:00
Greg Darke
bbd15ca567 Wait longer before giving up on the 2nd tftp block. 
Previously we would wait the same number of iterations as it took us to
receive the first data block after sending the request. When using the
build in tftp server in qemu, the first wait loop succeeds (and thus
breaks when 'i' is still 0.

Since the counter was never reset between the first and second data
block, under qemu the tftp_get call would fail before ever checking if
we have received the second block of data.

Now that we initialise 'i' to 12M, we ensure that we wait the same
amount of time for the second data block as it previously did for the
third (and subsequent) blocks.
 2017-12-29 23:56:32 +01:00
Florent Kermarrec
0a2d38ecd2 bios/sdram: use same initialization procedure for artix7 than kintex7 excepting write leveling that is not done 2017-12-29 17:13:58 +01:00
Florent Kermarrec
c3d902ef42 soc/software/bios/sdram: add Kintex Ultrascale support 2017-11-08 12:59:38 +01:00
Tim 'mithro' Ansell
279ec488e3 bios: Print location jumping too. 
Makes it easier to  understand what is happening (and that the BIOS is
jumping to the right place).
 2017-10-06 20:38:44 +11:00
Tim 'mithro' Ansell
8152673d18 common: Compile with debugging symbols on. 
Debugging symbols are useful when using GDB :-)
 2017-10-06 20:38:44 +11:00
Tim 'mithro' Ansell
b1b6a74170 or1k: Use EXCEPTION_STACK_SIZE of 256bytes. 
or1k defines a 128 byte "red zone" after the stack that can not be
touched by the exception handler.

We also need 128 bytes to store the 32 registers.
 2017-10-06 20:38:44 +11:00
Tim 'mithro' Ansell
07a9df3586 bios: Declare dependency on linked in .a files. 2017-10-06 20:38:44 +11:00
Florent Kermarrec
8f3dcf90ab soc/software/bios/sdram: add optional memtest debug traces 2017-08-18 09:42:27 +02:00
Florent Kermarrec
4d664730fe soc/software/libbase: fix get_ident 2017-06-28 18:10:56 +02:00
Florent Kermarrec
455cb3ebe3 soc/software/main: fix double serialboot (merge issue) 2017-01-17 04:37:18 +01:00
Florent Kermarrec
ff31959aea merge most of misoc 54e1ef82 and migen e93d0601 changes 2017-01-13 03:55:00 +01:00
Joel Addison
31dbd35c2e Add strcasecmp function to lib 2017-01-12 14:00:05 +11:00
Tim 'mithro' Ansell
284c94f1d3 Fix Makefile dependency inclusion for other software. 2016-12-19 14:29:33 +01:00
Tim 'mithro' Ansell
8bccd2d988 bios: Include dependency rebuild info. 2016-12-17 14:14:14 +01:00
Tim 'mithro' Ansell
46bbec5494 main.o is not a phony target. 2016-12-15 19:56:58 +01:00
Florent Kermarrec
daa9473809 soc/software/bios/main: revision command becomes ident 2016-11-30 15:45:06 +01:00
Florent Kermarrec
0f57451f30 soc/software/bios: remove dataflow 2016-11-30 15:44:30 +01:00
enjoy-digital
7bb2be41e8 Merge pull request #9 from mithro/vprintf-fix 
libbase: Adding missing vprintf function.
 2016-10-30 09:43:43 +01:00
Tim 'mithro' Ansell
548fd33d20 libbase: Adding missing vprintf function. 
Fixes #8.

```
int vprintf(const char *format, va_list ap);

The functions vprintf(), vfprintf(), vsprintf(), vsnprintf() are equivalent to
the functions printf(), fprintf(), sprintf(), snprintf(), respectively, except
that  they  are  called  with  a  va_list instead of a variable number of
arguments.
```
 2016-10-30 16:25:06 +11:00
Tim 'mithro' Ansell
35ba9cf735 soc/software/Makefile: Fix Makefile depend generation. 
Previously the flags were not actually set and the *.d files were never
actually generated.
 2016-10-28 01:25:47 +11:00
Florent Kermarrec
44d766c09f software/sdram: cleanup artix7 init 2016-04-29 15:55:10 +02:00
Florent Kermarrec
66362b1280 move sdram code to litedram (https://github.com/enjoy-digital/litedram) 2016-04-29 07:45:15 +02:00
Florent Kermarrec
4e451a78d6 soc/software/bios/sdram: add sdrlevel_artix7 (bitslip and delays have to be found manually) 2016-04-27 12:33:44 +02:00
Florent Kermarrec
849434c1bd soc/software/bios: show cpu on first banner line 2016-04-19 09:19:37 +02:00
Tim 'mithro' Ansell
8998ae5c92 bios: Print CPU architecture on boot. 2016-04-19 16:02:26 +10:00
enjoy-digital
e0e56e3655 Merge pull request #1 from mithro/master 
Bunch of small fixes
 2016-04-19 07:49:24 +02:00
Tim 'mithro' Ansell
514496d744 libcompiler_rt: Fixing Makefile for CPU endianness. 2016-04-19 14:55:01 +10:00
Tim 'mithro' Ansell
2f834d0aa2 bios: Use single characters for boot modes. 
* The function keys never really worked properly.
 * Also add commands for the ROM/Flash/etc.
 2016-04-19 13:42:56 +10:00
Florent Kermarrec
fcd8d792a1 Merge branch 'master' of https://github.com/enjoy-digital/litex 2016-04-13 01:19:21 +02:00
Florent Kermarrec
40eb779e67 software/include/base: fix system.h for or1k 2016-04-10 17:21:54 +02:00
Florent Kermarrec
238d69f186 software/common: use -std=gnu99 for GCC 2016-04-10 17:21:17 +02:00
Florent Kermarrec
8ced064160 soc/software/libcompiler_rt: fix mulsi3 compilation 2016-04-07 08:28:38 +02:00
Florent Kermarrec
80d78698e3 soc/software/libnet/microudp: fix debug flag 2016-04-07 08:28:38 +02:00
Florent Kermarrec
454d5d13e2 soc/software: fix libcompiler_rt mulsi3.c compile 2016-04-04 08:36:23 +02:00
Florent Kermarrec
17f6cb1f17 initial RISC-V support (with picorv32), still some software to do (manage IRQ, L2 cache flush) 2016-04-01 00:09:17 +02:00
Florent Kermarrec
7e62cdf601 soc/software/bios: update default ip addresses (local: 192.168.1.50 / remote: 192.168.1.100) 2016-03-31 10:55:11 +02:00
Florent Kermarrec
2c32791a28 soc/software/bios/main: add capability to configure TEST_USER_ABORT_DELAY 2016-01-14 16:53:04 +01:00
Florent Kermarrec
492f276247 soc/software/bios/main: give priority to romboot over serialboot/netboot 2016-01-14 16:46:42 +01:00
Florent Kermarrec
3191533889 soc/software/libnet: add debug defines on microudp 2015-12-07 12:03:36 +01:00
Florent Kermarrec
6f4dd14ffa soc/software/boot: add #ifndef on LOCALIP and REMOTEIP to allow definition in the SoC with add_constant 2015-11-23 11:08:04 +01:00
Florent Kermarrec
714a3d88e2 add LICENSE, update copyrights, add Migen install instructions 2015-11-11 13:22:39 +01:00
Florent Kermarrec
bda196fbc8 soc/software/bios/sdram: split memtest and allow external #define of memtest sizes 2015-11-11 13:10:03 +01:00
Florent Kermarrec
3f43a49382 soc: merge with misoc 3fcc4f116c3292020cb811d179e45ae45990101b 
changes:
-software/bios: remove dataflow
-cores/identifier: replace with user-defined string
-interconnect/CSRBankArray: support read-only mappings
-targets: Added Numato Mimas V2 target
-Our libunwind changes were merged upstream.
-wishbone: update TODO
-replace Counter in Converters
-Fix CSRBankArray
-flterm: properly exit on ^C.
 2015-11-10 16:51:51 +01:00
Florent Kermarrec
3297210e48 boards/targets/sim: get SDRAM working in simulation with sdram/model 2015-11-10 12:57:23 +01:00
Florent Kermarrec
4afe4a07e4 soc/software: remove memtest (should be re-written) 2015-11-10 12:22:08 +01:00
Florent Kermarrec
6764c06b62 soc/sofware: remove libdyld 2015-11-10 12:21:23 +01:00
Florent Kermarrec
f72e172ac3 soc/software: remove libunwind 2015-11-10 12:16:34 +01:00
Florent Kermarrec
6a0f85dc42 litex: reorganize things, first work working version 2015-11-07 17:48:55 +01:00