From 0889a80c6300db1d39f00e0650cef48f99ccbf70 Mon Sep 17 00:00:00 2001 From: Angel Pons Date: Fri, 4 Jun 2021 13:05:43 +0200 Subject: [PATCH] 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 Reviewed-on: https://review.coreboot.org/c/coreboot/+/55220 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Rudolph --- src/soc/intel/broadwell/pch/fadt.c | 6 +++--- 1 file 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 |