diff options
Diffstat (limited to 'src/soc/intel')
| -rw-r--r-- | src/soc/intel/common/block/acpi/Kconfig | 33 | ||||
| -rw-r--r-- | src/soc/intel/common/block/acpi/acpi.c | 5 |
2 files changed, 27 insertions, 11 deletions
diff --git a/src/soc/intel/common/block/acpi/Kconfig b/src/soc/intel/common/block/acpi/Kconfig index 459a95285a..827bedd50d 100644 --- a/src/soc/intel/common/block/acpi/Kconfig +++ b/src/soc/intel/common/block/acpi/Kconfig @@ -77,15 +77,30 @@ config SOC_INTEL_COMMON_BLOCK_ACPI_SLP_S0_FREQ_HZ LPIT ACPI table. config SOC_INTEL_COMMON_BLOCK_ACPI_HAVE_GPE1 - bool "Use GPE1 Event bits" + bool + help + This flag indicates that the SoC implements GPE1. GPE1 Event Bit is an + extension of GPE0 (present in all Intel SoC platform). GPE1 Events is + SoC-specific, which might include the power management, hot plug, and + PCIe events for the internal devices. Select this Kconfig to support SoCs + that publish GPE1 as part of PMC IO register. The dummy GPE1_ macros with + their values set to '0' will be added when this flag is not set for + backward compatibility matter. + +config SOC_INTEL_COMMON_BLOCK_ACPI_USE_GPE1 + bool + depends on SOC_INTEL_COMMON_BLOCK_ACPI_HAVE_GPE1 help - Include GPE1 STS and EN registers in FADT. Requires define GPE1_STS(0) - and GPE1_REG_MAX from the SOC header. The SOC needs to have GPE1 block - implemented to select this. This flag will also be used to determine the - standard GPE0/1 event methods to use in the ASL code or devicetree for the - internal wake capable devices. GPE1 Event Bit is an extension of GPE0 - (present in all Intel SoC platform). GPE1 Events include the power - management, hot plug, and PCIe events for the internal devices. Select - this Kconfig to support SoCs that publish GPE1 as part of PMC IO register. + This flags will expose GPE1 STS and EN registers in FADT. SoC needs to + have GPE1 block implemented to select this. It is required to define + GPE1_STS(), GPE_EN(), and GPE1_REG_MAX from the SoC header. When selected, + GPE1 functions will be added and GPE1 events will be cleared and disabled + during boot. The SoC is required to provide the overridden GPE1 functions. + In addition, this flag will also be used to determine the standard GPE0/1 + event methods to use in the ASL code and devicetree for the internal wake + capable devices. The purpose of this flag is to enable to switch in + between new GPE1 approach and old GPE0 method. The mainboard should decide + to use the GPE1 via this flag; or else + SOC_INTEL_COMMON_BLOCK_ACPI_HAVE_GPE1 exposes a SoC capability using ACPI. endif diff --git a/src/soc/intel/common/block/acpi/acpi.c b/src/soc/intel/common/block/acpi/acpi.c index dcd4dc4cca..d683726d86 100644 --- a/src/soc/intel/common/block/acpi/acpi.c +++ b/src/soc/intel/common/block/acpi/acpi.c @@ -107,8 +107,9 @@ void acpi_fill_fadt(acpi_fadt_t *fadt) /* GPE0 STS/EN pairs each 32 bits wide. */ fadt->gpe0_blk_len = 2 * GPE0_REG_MAX * sizeof(uint32_t); - fadt->gpe1_blk = GPE1_STS(0) ? (pmbase + GPE1_STS(0)) : 0; - if (fadt->gpe1_blk) { + fadt->gpe1_blk = 0; + if (CONFIG(SOC_INTEL_COMMON_BLOCK_ACPI_USE_GPE1)) { + fadt->gpe1_blk = pmbase + GPE1_STS(0); fadt->gpe1_blk_len = 2 * GPE1_REG_MAX * sizeof(uint32_t); /* * NOTE: gpe1 is after gpe0, which has _STS and _EN register sets. |