diff options
| -rw-r--r-- | src/soc/intel/skylake/acpi.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/src/soc/intel/skylake/acpi.c b/src/soc/intel/skylake/acpi.c index be1200b681..cc8f43725b 100644 --- a/src/soc/intel/skylake/acpi.c +++ b/src/soc/intel/skylake/acpi.c @@ -234,6 +234,8 @@ unsigned long acpi_fill_madt(unsigned long current) void acpi_fill_fadt(acpi_fadt_t *fadt) { + const struct device *dev = SA_DEV_ROOT; + const config_t *config = dev ? dev->chip_info : NULL; const uint16_t pmbase = ACPI_BASE_ADDRESS; /* Use ACPI 3.0 revision */ @@ -282,6 +284,9 @@ void acpi_fill_fadt(acpi_fadt_t *fadt) ACPI_FADT_RESET_REGISTER | ACPI_FADT_SEALED_CASE | ACPI_FADT_S4_RTC_WAKE | ACPI_FADT_PLATFORM_CLOCK; + if (config && config->s0ix_enable) + fadt->flags |= ACPI_FADT_LOW_PWR_IDLE_S0; + fadt->reset_reg.space_id = 1; fadt->reset_reg.bit_width = 8; fadt->reset_reg.bit_offset = 0; |