Matt DeVillier has uploaded a new change for review. ( https://review.coreboot.org/19969 )
Change subject: soc/broadwell: add ACPI method to generate USB port info ......................................................................
soc/broadwell: 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: Id6e6699fe3eaafbe6847479d45c70a1d57bd327a Signed-off-by: Matt DeVillier matt.devillier@gmail.com --- M src/soc/intel/broadwell/acpi/xhci.asl 1 file changed, 16 insertions(+), 0 deletions(-)
git pull ssh://review.coreboot.org:29418/coreboot refs/changes/69/19969/1
diff --git a/src/soc/intel/broadwell/acpi/xhci.asl b/src/soc/intel/broadwell/acpi/xhci.asl index bbf9878..53ef127 100644 --- a/src/soc/intel/broadwell/acpi/xhci.asl +++ b/src/soc/intel/broadwell/acpi/xhci.asl @@ -355,6 +355,22 @@ { 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