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-rw-r--r--src/soc/intel/xeon_sp/skx/acpi/pci_irq.asl6
1 files changed, 2 insertions, 4 deletions
diff --git a/src/soc/intel/xeon_sp/skx/acpi/pci_irq.asl b/src/soc/intel/xeon_sp/skx/acpi/pci_irq.asl
index dcb6fe2af3..b2a2ebf850 100644
--- a/src/soc/intel/xeon_sp/skx/acpi/pci_irq.asl
+++ b/src/soc/intel/xeon_sp/skx/acpi/pci_irq.asl
@@ -8,10 +8,8 @@
* PIRQ routing control is in PCR ITSS region.
*/
-OperationRegion (ITSS, SystemMemory,
- Add (PCR_ITSS_PIRQA_ROUT,
- Add (CONFIG_PCR_BASE_ADDRESS,
- ShiftLeft (PID_ITSS, PCR_PORTID_SHIFT))), 8)
+OperationRegion (ITSS, SystemMemory, PCR_ITSS_PIRQA_ROUT +
+ CONFIG_PCR_BASE_ADDRESS + (PID_ITSS << PCR_PORTID_SHIFT), 8)
Field (ITSS, ByteAcc, NoLock, Preserve)
{
PIRA, 8, /* PIRQA Routing Control */