diff options
Diffstat (limited to 'src/mainboard/lippert/frontrunner-af/dsdt.asl')
| -rw-r--r-- | src/mainboard/lippert/frontrunner-af/dsdt.asl | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/src/mainboard/lippert/frontrunner-af/dsdt.asl b/src/mainboard/lippert/frontrunner-af/dsdt.asl index a685b2c6c8..86eccb2eb0 100644 --- a/src/mainboard/lippert/frontrunner-af/dsdt.asl +++ b/src/mainboard/lippert/frontrunner-af/dsdt.asl @@ -1158,14 +1158,22 @@ DefinitionBlock ( Name(_ADR, 0x00180000) /* Dev# = BSP Dev#, Func# = 0 */ /* Operating System Capabilities Method */ - Method(_OSC,4) - { /* Check for proper PCI/PCIe UUID */ - If(LEqual(Arg0,ToUUID("33DB4D5B-1FF7-401C-9657-7441C03DD766"))) + Method (_OSC, 4) + { + /* Check for PCI/PCI-X/PCIe GUID */ + If (LEqual (Arg0, ToUUID("33DB4D5B-1FF7-401C-9657-7441C03DD766"))) { /* Let OS control everything */ Return (Arg3) } - } + Else + { + /* Unrecognized UUID, so set bit 2 of Arg3 to 1 */ + CreateDWordField (Arg3, 0, CDW1) + Or (CDW1, 4, CDW1) + Return (Arg3) + } + } /* End _OSC */ Method(_BBN, 0) { /* Bus number = 0 */ Return(0) |