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soc/intel/broadwell/pch: Drop P_LVLx support in FADT 

IO MWAIT redirection is not enabled, and C-states are reported using the
_CST ACPI object, which overrides the P_LVLx values.

Change-Id: I3f71ef99396b56dbd960c507133c06a8eae55778
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/55220
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
This commit is contained in:
Angel Pons 2021-06-04 13:05:43 +02:00 committed by Patrick Georgi
parent 720dc71bb0
commit 0889a80c63
1 changed files with 3 additions and 3 deletions
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6
src/soc/intel/broadwell/pch/fadt.c
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@ -29,8 +29,9 @@ void acpi_fill_fadt(acpi_fadt_t *fadt)
fadt->pm2_cnt_len = 1;
fadt->pm_tmr_len = 4;
fadt->gpe0_blk_len = 32;
fadt->p_lvl2_lat = 1;
fadt->p_lvl3_lat = 87;
/* P_LVLx not used */
fadt->p_lvl2_lat = 101;
fadt->p_lvl3_lat = 1001;
fadt->duty_offset = 1;
fadt->duty_width = 0;
fadt->day_alrm = 0xd;
@ -40,7 +41,6 @@ void acpi_fill_fadt(acpi_fadt_t *fadt)
fadt->flags |= ACPI_FADT_WBINVD |
ACPI_FADT_C1_SUPPORTED |
ACPI_FADT_C2_MP_SUPPORTED |
ACPI_FADT_SLEEP_BUTTON |
ACPI_FADT_SEALED_CASE |
ACPI_FADT_S4_RTC_WAKE |