diff options
Diffstat (limited to 'src/southbridge/amd')
| -rwxr-xr-x | src/southbridge/amd/agesa/hudson/acpi/fch.asl | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/src/southbridge/amd/agesa/hudson/acpi/fch.asl b/src/southbridge/amd/agesa/hudson/acpi/fch.asl index 5d3a29ce5c..06b4fe7fd1 100755 --- a/src/southbridge/amd/agesa/hudson/acpi/fch.asl +++ b/src/southbridge/amd/agesa/hudson/acpi/fch.asl @@ -21,6 +21,25 @@ /* South Bridge */ /* _SB.PCI0 */ +/* Operating System Capabilities Method */ +Method(_OSC,4) +{ + // Create DWord-addressable fields from the Capabilities Buffer + CreateDWordField(Arg3,0,CDW1) + CreateDWordField(Arg3,4,CDW2) + CreateDWordField(Arg3,8,CDW3) + + /* Check for proper PCI/PCIe UUID */ + If(LEqual(Arg0,ToUUID("33DB4D5B-1FF7-401C-9657-7441C03DD766"))) + { + /* Let OS control everything */ + Return (Arg3) + } Else { + Or(CDW1,4,CDW1) // Unrecognized UUID + Return(Arg3) + } +} + /* Describe the Southbridge devices */ /* 0:11.0 - SATA */ |