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authorAngel Pons <th3fanbus@gmail.com>2021-06-04 13:05:43 +0200
committerPatrick Georgi <pgeorgi@google.com>2021-06-07 11:37:31 +0000
commit0889a80c6300db1d39f00e0650cef48f99ccbf70 (patch)
treeafc7aa8f547d04d172546d77f4e4230906677b81 /src/soc/intel/broadwell
parent720dc71bb0213e0b0a365db3161b462ea34ec497 (diff)
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>
Diffstat (limited to 'src/soc/intel/broadwell')
-rw-r--r--src/soc/intel/broadwell/pch/fadt.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/src/soc/intel/broadwell/pch/fadt.c b/src/soc/intel/broadwell/pch/fadt.c
index 6ba6478795..52254a0f90 100644
--- a/src/soc/intel/broadwell/pch/fadt.c
+++ b/src/soc/intel/broadwell/pch/fadt.c
@@ -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 |