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-rw-r--r--src/soc/intel/baytrail/acpi/xhci.asl17
1 files changed, 17 insertions, 0 deletions
diff --git a/src/soc/intel/baytrail/acpi/xhci.asl b/src/soc/intel/baytrail/acpi/xhci.asl
index bef0b9ff2f..d3c0083c2f 100644
--- a/src/soc/intel/baytrail/acpi/xhci.asl
+++ b/src/soc/intel/baytrail/acpi/xhci.asl
@@ -23,6 +23,23 @@ Device (XHCI)
Device (RHUB)
{
Name (_ADR, 0x00000000)
+
+ // GPLD: Generate Port Location Data (PLD)
+ Method (GPLD, 1, Serialized) {
+ Name (PCKG, Package (0x01) {
+ Buffer (0x10) {}
+ })
+
+ // REV: Revision 0x02 for ACPI 5.0
+ CreateField (DerefOf (Index (PCKG, Zero)), Zero, 0x07, REV)
+ Store (0x02, REV)
+
+ // VISI: Port visibility to user per port
+ CreateField (DerefOf (Index (PCKG, Zero)), 0x40, One, VISI)
+ Store (Arg0, VISI)
+ Return (PCKG)
+ }
+
Device (PRT1) { Name (_ADR, 1) }
Device (PRT2) { Name (_ADR, 2) }
Device (PRT3) { Name (_ADR, 3) }