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-rw-r--r--src/acpi/acpi.c4
-rw-r--r--src/southbridge/intel/bd82x6x/fadt.c4
-rw-r--r--src/southbridge/intel/ibexpeak/fadt.c4
-rw-r--r--src/southbridge/intel/lynxpoint/fadt.c2
4 files changed, 6 insertions, 8 deletions
diff --git a/src/acpi/acpi.c b/src/acpi/acpi.c
index f8994eb9e9..fb9a758fb0 100644
--- a/src/acpi/acpi.c
+++ b/src/acpi/acpi.c
@@ -1689,6 +1689,10 @@ void acpi_create_fadt(acpi_fadt_t *fadt, acpi_facs_t *facs, void *dsdt)
fadt->p_lvl2_lat = ACPI_FADT_C2_NOT_SUPPORTED;
fadt->p_lvl3_lat = ACPI_FADT_C3_NOT_SUPPORTED;
+ /* Use CPU _PTC instead to provide P_CNT details. */
+ fadt->duty_offset = 0;
+ fadt->duty_width = 0;
+
fadt->preferred_pm_profile = acpi_get_preferred_pm_profile();
if (CONFIG(USE_PC_CMOS_ALTCENTURY))
diff --git a/src/southbridge/intel/bd82x6x/fadt.c b/src/southbridge/intel/bd82x6x/fadt.c
index a9e7a36e58..296ee2b878 100644
--- a/src/southbridge/intel/bd82x6x/fadt.c
+++ b/src/southbridge/intel/bd82x6x/fadt.c
@@ -31,9 +31,7 @@ void acpi_fill_fadt(acpi_fadt_t *fadt)
fadt->pm2_cnt_len = 1;
fadt->pm_tmr_len = 4;
fadt->gpe0_blk_len = 16;
- /* P_CNT not supported */
- fadt->duty_offset = 0;
- fadt->duty_width = 0;
+
fadt->day_alrm = 0xd;
fadt->mon_alrm = 0x00;
fadt->iapc_boot_arch = ACPI_FADT_LEGACY_DEVICES | ACPI_FADT_8042;
diff --git a/src/southbridge/intel/ibexpeak/fadt.c b/src/southbridge/intel/ibexpeak/fadt.c
index d6084eeaa4..dfb9774fad 100644
--- a/src/southbridge/intel/ibexpeak/fadt.c
+++ b/src/southbridge/intel/ibexpeak/fadt.c
@@ -31,9 +31,7 @@ void acpi_fill_fadt(acpi_fadt_t *fadt)
fadt->pm2_cnt_len = 1;
fadt->pm_tmr_len = 4;
fadt->gpe0_blk_len = 16;
- /* P_CNT not supported */
- fadt->duty_offset = 0;
- fadt->duty_width = 0;
+
fadt->day_alrm = 0xd;
fadt->mon_alrm = 0x00;
fadt->iapc_boot_arch = ACPI_FADT_LEGACY_DEVICES | ACPI_FADT_8042;
diff --git a/src/southbridge/intel/lynxpoint/fadt.c b/src/southbridge/intel/lynxpoint/fadt.c
index ba9439cb11..a90d0a857b 100644
--- a/src/southbridge/intel/lynxpoint/fadt.c
+++ b/src/southbridge/intel/lynxpoint/fadt.c
@@ -44,8 +44,6 @@ void acpi_fill_fadt(acpi_fadt_t *fadt)
else
fadt->gpe0_blk_len = 2 * 8;
- fadt->duty_offset = 0;
- fadt->duty_width = 0;
fadt->day_alrm = 0xd;
fadt->mon_alrm = 0x00;
fadt->iapc_boot_arch = ACPI_FADT_LEGACY_DEVICES | ACPI_FADT_8042;