| commit | 75dd80649925a5a30486a40068b7bb287c07b167 | |
| author | Mate Kukri <kukri.mate@gmail.com> | |
| Tue, 23 Apr 2024 17:04:38 +0000 (23 18:04 +0100) | ||
| committer | Felix Held <felix-coreboot@felixheld.de> | |
| Wed, 24 Apr 2024 17:42:40 +0000 (24 17:42 +0000) | ||
| tree | b0f988cd57edecef37d2dcbcda46e3312fa2f631 | treesnapshot (tar.gz zip) |
| parent | 51e472d568339fd76222933b16b88ddafaa8177b | commitdiff |
mb/dell/optiplex_9020: Implement late HWM initialization
There are 4 different chassis types specified by vendor firmware, each
with a slightly different HWM configuration.
The chassis type to use is determined at runtime by reading a set of
4 PCH GPIOs: 70, 38, 17, and 1.
Additionally vendor firmware also provides an option to run the fans at
full speed. This is substituted with a coreboot nvram option in this
implementation.
This was tested to make fan control work on my OptiPlex 7020 SFF.
NOTE: This is superficially similar to the OptiPlex 9010's SCH5545
however the OptiPlex 9020's SCH5555 does not use externally
programmed EC firmware.
Change-Id: Ibdccd3fc7364e03e84ca606592928410624eed43
Signed-off-by: Mate Kukri <kukri.mate@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/81529
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
There are 4 different chassis types specified by vendor firmware, each
with a slightly different HWM configuration.
The chassis type to use is determined at runtime by reading a set of
4 PCH GPIOs: 70, 38, 17, and 1.
Additionally vendor firmware also provides an option to run the fans at
full speed. This is substituted with a coreboot nvram option in this
implementation.
This was tested to make fan control work on my OptiPlex 7020 SFF.
NOTE: This is superficially similar to the OptiPlex 9010's SCH5545
however the OptiPlex 9020's SCH5555 does not use externally
programmed EC firmware.
Change-Id: Ibdccd3fc7364e03e84ca606592928410624eed43
Signed-off-by: Mate Kukri <kukri.mate@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/81529
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>