diff options
| author | Mario Scheithauer <mario.scheithauer@siemens.com> | 2017-07-17 13:28:56 +0200 |
|---|---|---|
| committer | Werner Zeh <werner.zeh@siemens.com> | 2017-07-20 04:44:41 +0000 |
| commit | c2363d0fa4f8d7564baf1d259971b804dac3fbc4 (patch) | |
| tree | 727c79ccbf9a415dbee4da92005ce25b3c72da3e | |
| parent | 0ade3133a0565df7b917a0f82869b10c3d4c57d4 (diff) | |
soc/intel/apollolake: Implement _PIC method into ACPI
The _PIC method is called by the OS to choose between interrupt routing
via the i8259 interrupt controller or the APIC.
Change-Id: I2bc16f9c096c095c02de3692e76c0906cec54cb5
Signed-off-by: Mario Scheithauer <mario.scheithauer@siemens.com>
Reviewed-on: https://review.coreboot.org/20617
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
| -rw-r--r-- | src/soc/intel/apollolake/acpi/platform.asl | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/src/soc/intel/apollolake/acpi/platform.asl b/src/soc/intel/apollolake/acpi/platform.asl index f3202a0c48..ec1844a512 100644 --- a/src/soc/intel/apollolake/acpi/platform.asl +++ b/src/soc/intel/apollolake/acpi/platform.asl @@ -18,3 +18,19 @@ /* Enable ACPI _SWS methods */ #include <soc/intel/common/acpi/acpi_wake_source.asl> #include <soc/intel/common/acpi/platform.asl> + +Name(\PICM, Zero) // IOAPIC/8259 + +/* + * The _PIC method is called by the OS to choose between interrupt + * routing via the i8259 interrupt controller or the APIC. + * + * _PIC is called with a parameter of 0 for i8259 configuration and + * with a parameter of 1 for Local Apic/IOAPIC configuration. + */ + +Method (_PIC, 1) +{ + /* Remember the OS' IRQ routing choice. */ + Store (Arg0, PICM) +} |