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-rw-r--r--src/soc/intel/apollolake/acpi/platform.asl16
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)
+}