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authorMatt DeVillier <matt.devillier@gmail.com>2017-04-17 18:47:16 -0500
committerMartin Roth <martinroth@google.com>2017-06-02 18:29:45 +0200
commitfab0a49019146c7273adacad3b77445493581a9a (patch)
tree4841ed3a1ad78bad71f93f26bf9c66daec96abf6 /src/soc/intel
parentf9c46f0ebced9e750e4df05e33ebbaa7b7073aa4 (diff)
soc/baytrail: add ACPI method to generate USB port info
Add ACPI method GPLD to generate port location data when passed visiblity info. Will be used by _PLD method in board-specific USB .asl files. Change-Id: Iad947ae2cd541d3407455b218c2b352b9a373718 Signed-off-by: Matt DeVillier <matt.devillier@gmail.com> Reviewed-on: https://review.coreboot.org/19973 Reviewed-by: Martin Roth <martinroth@google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/soc/intel')
-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) }