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authorAngel Pons <th3fanbus@gmail.com>2021-06-04 13:04:34 +0200
committerPatrick Georgi <pgeorgi@google.com>2021-06-07 11:37:25 +0000
commit720dc71bb0213e0b0a365db3161b462ea34ec497 (patch)
treebde879a8c5181c1b15f35bbf2ec12eceba013b3f /src/southbridge/intel
parent427e435b9ba28ebc9f5ee5535ba06c73e07f40c8 (diff)
sb/intel/lynxpoint: 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: I1b623d19a85045797921b4909e01d5ba521de3ad Signed-off-by: Angel Pons <th3fanbus@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/55219 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Patrick Rudolph <siro@das-labor.org>
Diffstat (limited to 'src/southbridge/intel')
-rw-r--r--src/southbridge/intel/lynxpoint/fadt.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/src/southbridge/intel/lynxpoint/fadt.c b/src/southbridge/intel/lynxpoint/fadt.c
index dee0601571..abf56ca6fd 100644
--- a/src/southbridge/intel/lynxpoint/fadt.c
+++ b/src/southbridge/intel/lynxpoint/fadt.c
@@ -44,8 +44,9 @@ void acpi_fill_fadt(acpi_fadt_t *fadt)
else
fadt->gpe0_blk_len = 2 * 8;
- 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 = 0;
fadt->duty_width = 0;
fadt->day_alrm = 0xd;
@@ -55,7 +56,6 @@ 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 |