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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>
This commit is contained in:
Mario Scheithauer 2017-07-17 13:28:56 +02:00 committed by Werner Zeh
parent 0ade3133a0
commit c2363d0fa4
1 changed files with 16 additions and 0 deletions
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16
src/soc/intel/apollolake/acpi/platform.asl
View File

@ -18,3 +18,19 @@
/* Enable ACPI _SWS methods */ /* Enable ACPI _SWS methods */
#include <soc/intel/common/acpi/acpi_wake_source.asl> #include <soc/intel/common/acpi/acpi_wake_source.asl>
#include <soc/intel/common/acpi/platform.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)
}