From 083501b4ec39dc51a0bfa5e952e06f521bb822b7 Mon Sep 17 00:00:00 2001 From: Matt DeVillier Date: Mon, 17 Apr 2017 18:25:09 -0500 Subject: [PATCH] UPSTREAM: sb/lynxpoint: 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. BUG=none BRANCH=none TEST=none Change-Id: I20ccd96b72a761001cc10c363ede04af19585e99 Signed-off-by: Patrick Georgi Original-Commit-Id: 8b96fd2e5affcf4420268d53fa58826685ccbeed Original-Change-Id: If63d5637a0469eeace0d935cca961e8d04fdfb1a Original-Signed-off-by: Matt DeVillier Original-Reviewed-on: https://review.coreboot.org/19964 Original-Tested-by: build bot (Jenkins) Original-Reviewed-by: Martin Roth Reviewed-on: https://chromium-review.googlesource.com/521036 Commit-Ready: Patrick Georgi Tested-by: Patrick Georgi Reviewed-by: Patrick Georgi --- src/southbridge/intel/lynxpoint/acpi/usb.asl | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/src/southbridge/intel/lynxpoint/acpi/usb.asl b/src/southbridge/intel/lynxpoint/acpi/usb.asl index b02cbfea3b..85e439036f 100644 --- a/src/southbridge/intel/lynxpoint/acpi/usb.asl +++ b/src/southbridge/intel/lynxpoint/acpi/usb.asl @@ -393,6 +393,22 @@ Device (XHCI) { 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) + } + // How many are there? Device (PRT1) { Name (_ADR, 1) } // USB Port 0 Device (PRT2) { Name (_ADR, 2) } // USB Port 1