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ACPI: Obsolete FADT duty_offset and duty_width fields

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After the obsoletion of Processor() it is necessary to provide
_PTC package to define P_CNT IO address for clock throttling.
The platforms touched here already emit empty _PTC to disable
clock throttling.

Change-Id: I0e84c8ccd2772c9b3d61f71b74324c8d28f4eefe
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/74438
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Kyösti Mälkki
2023-04-14 15:37:27 +03:00
parent 67c48a3677
commit 9ff9797ad7
4 changed files with 6 additions and 8 deletions
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4
src/acpi/acpi.c
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@ -1689,6 +1689,10 @@ void acpi_create_fadt(acpi_fadt_t *fadt, acpi_facs_t *facs, void *dsdt)
fadt->p_lvl2_lat = ACPI_FADT_C2_NOT_SUPPORTED;
fadt->p_lvl3_lat = ACPI_FADT_C3_NOT_SUPPORTED;
/* Use CPU _PTC instead to provide P_CNT details. */
fadt->duty_offset = 0;
fadt->duty_width = 0;
fadt->preferred_pm_profile = acpi_get_preferred_pm_profile();
if (CONFIG(USE_PC_CMOS_ALTCENTURY))