From 720dc71bb0213e0b0a365db3161b462ea34ec497 Mon Sep 17 00:00:00 2001 From: Angel Pons Date: Fri, 4 Jun 2021 13:04:34 +0200 Subject: [PATCH] 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 Reviewed-on: https://review.coreboot.org/c/coreboot/+/55219 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Rudolph --- src/southbridge/intel/lynxpoint/fadt.c | 6 +++--- 1 file 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 |