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30 Commits

Author SHA1 Message Date
Robert Jördens e31ee1f0b3 firmware/i2c: rewrite I2C implementation 
* Never drive SDL or SDA high. They are specified to be open
  collector/drain and pulled up by resistive pullups. Driving
  high fails miserably in a multi-master topology (e.g. with
  a USB I2C interface). It would only ever be implemented to
  speed up the bus actively but that's tricky and completely
  unnecessary here.
* Make the handover states between the I2C protocol phases (start, stop,
  restart, write, read) well defined. Add comments stressing those
  pre/postconditions.
* Add checks for SDA arbitration failures and stuck SCL.
* Remove wrong, misleading or redundant comments.
 2020-07-15 16:43:07 +08:00
Sebastien Bourdeauducq 8719bab726 Revert "i2c: duplicate TCA9548 control byte" 
This reverts commit f265976df6.
 2020-07-08 19:02:02 +08:00
Donald Sebastian Leung f265976df6 i2c: duplicate TCA9548 control byte 2020-07-03 16:45:05 +08:00
Sebastien Bourdeauducq 4e9a529e5a kasli: integrate WRPLL 2020-05-07 21:34:02 +08:00
Sebastien Bourdeauducq 35f1814235 kasli: implement virtual LEDs 2020-05-07 19:07:43 +08:00
Sebastien Bourdeauducq 4982fde898 firmware: I2C I/O expander support 2020-05-05 21:38:17 +08:00
Sebastien Bourdeauducq ef4e5bc69b firmware: Kasli I2C EEPROM cleanup 2020-05-05 21:29:29 +08:00
Sebastien Bourdeauducq 9bc43b2dbf kasli: support EEPROM on v2 2020-04-23 23:00:36 +08:00
Sebastien Bourdeauducq bfcbffcd8d update smoltcp 
This disables the 'log' features which does not compile, and may break net_trace. To be investigated later.
 2020-01-21 13:58:23 +08:00
Sebastien Bourdeauducq 449d2c4f08 libboard_misoc: fix !has_i2c 2019-11-27 21:04:28 +08:00
Sebastien Bourdeauducq b25a17fa37 netboot: support slave FPGA loading 2019-11-05 16:28:49 +08:00
Sebastien Bourdeauducq a78e493b72 firmware: load slave FPGA in bootloader 2019-10-31 12:42:40 +08:00
Sebastien Bourdeauducq 47a83c71f1 firmware: more readable network addresses message 2019-10-21 14:00:14 +08:00
Sebastien Bourdeauducq 818d6b2f5a bootloader: fix compilation problems 2019-10-21 13:28:17 +08:00
Sebastien Bourdeauducq 8f76a3218e firmware: move i2c to libboard_misoc, enable IPv6 in bootloader, share network settings 2019-10-21 12:58:52 +08:00
Sebastien Bourdeauducq 390f05f762 firmware: use smoltcp release 2019-01-23 16:15:05 +08:00
Sebastien Bourdeauducq 6e43c41103 firmware: support building without SDRAM 2019-01-05 23:41:30 +08:00
Sebastien Bourdeauducq 2c3510497b firmware: fix not(has_spiflash) build 2019-01-05 23:40:03 +08:00
Sebastien Bourdeauducq d3483c1d26 kasli: fix SDRAM read delay reset/wrap issue. Closes #1149 2018-11-15 19:40:35 +08:00
Florent Kermarrec 3318925f4e firmware/liboard_misoc/sdram: use similar loops on read_level_scan and read_level for consistent results 2018-10-16 09:40:39 +02:00
whitequark 0e7419450e firmware: update smoltcp. 
This adds TCP window scaling support.
 2018-08-20 00:26:40 +00:00
whitequark 2648b1b7a1 firmware: migrate to Rust 1.28.0. 
This also updates / is a prerequisite for updating smoltcp.

Rationale for changes made:
  * compiler_builtins is now shipped in the rust prefix.
  * rustc's libpanic_unwind no longer works for us because it
    has a hard dependency on Box (and it's a horrible hack);
    fortunately, we only ever needed a personality function
    from it.
  * panic and oom handlers are now set in a completely different
    way.
  * allocators are quite different (and finally stable).
  * NLL caused internal compiler errors in runtime, so code using
    NLL was rewritten to not rely on it and it was turned off.
 2018-08-12 19:17:45 +00:00
whitequark 5871d13da8 firmware: actually compact in config::compact(). 
Fixes #1116.
 2018-08-01 16:27:48 +00:00
Sebastien Bourdeauducq 0a9d3638ee config: add write_int 2018-07-26 14:49:32 +08:00
whitequark 2e09307d8d firmware: use writeln instead of write in UART logger. 2018-05-29 03:16:52 +00:00
Chris Ballance b860302a9a firmware: fix typo in UART logger 2018-05-28 17:25:23 +00:00
whitequark 2b7d98eb04 firmware: enable all log levels when creating UART logger. 
The default is all off.
 2018-05-28 16:49:25 +00:00
whitequark 31c6c79204 firmware: implement an edge profiler. 
It doesn't work extremely well, and the results can be somewhat
confusing, and it needs a libunwind patch, but it's the best I could
do and it seems still useful.
 2018-05-16 21:53:53 +00:00
whitequark d93aa13fd6 firmware: use upstream compiler_builtins again. 
I've fixed i128 in LLVM, so there is no need in our fork anymore.
 2018-05-14 19:11:57 +00:00
whitequark 02b8426f60 firmware: rename libboard to libboard_misoc. 
By analogy with libbuild_misoc. Hopefully one day it actually gets
moved to misoc...
 2018-05-14 18:09:44 +00:00