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author | Felix Held <felix-coreboot@felixheld.de> | 2023-03-03 18:40:14 +0100 |
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committer | Felix Held <felix-coreboot@felixheld.de> | 2023-03-06 17:20:17 +0000 |
commit | c8755141c0849fad536ec12451230f0fd4a6a62a (patch) | |
tree | 560269faa45aea29e5b32073a55c4aacc637dd8b /src/mainboard/lenovo/t530/cmos.layout | |
parent | f773e12795b64d11920d8710d40f63e5791cf230 (diff) |
soc/amd/picasso/include/iomap: add comment about ACPI IO assignment
Finally figured out why ACPI_GPE0_BLK only being 4 bytes after
ACPI_CPU_CONTROL won't work and its due to the CPU trapping 8 IO
addresses from ACPI_CPU_CONTROL on for C state control. This is set up
in set_cstate_io_addr by writing the ACPI_CPU_CONTROL value into
MSR_CSTATE_ADDRESS.
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: Iedf53bbdae6ca65224601aad5cd1163df4b54131
Reviewed-on: https://review.coreboot.org/c/coreboot/+/73423
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Fred Reitberger <reitbergerfred@gmail.com>
Diffstat (limited to 'src/mainboard/lenovo/t530/cmos.layout')
0 files changed, 0 insertions, 0 deletions