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authorMarc Jones <marcj303@gmail.com>2018-08-15 22:17:45 -0600
committerMartin Roth <martinroth@google.com>2018-08-17 21:09:17 +0000
commit1faa11ed392d70bedbbe7443401e9259f216e0b6 (patch)
treed9f882a94f84bd7dcd6124582cc14c8dbbc2e114 /src/northbridge
parent4988fe2986078a8d8f87f5683ee3c820655895ca (diff)
downloadcoreboot-1faa11ed392d70bedbbe7443401e9259f216e0b6.tar.xz
Fix PCI ACPI _OSC methods
Fix the IASL build warnings: Object is not referenced (Name [CDW2] is within a method [_OSC]) Object is not referenced (Name [CDW3] is within a method [_OSC]) Remove the not referenced objects. They are not needed. BUG=b:112476331 TEST=IASL doesn't give the warning. Change-Id: I5b38d4de3f9875c5b013a49eb5146bf5916b96a6 Signed-off-by: Marc Jones <marcj303@gmail.com> Reviewed-on: https://review.coreboot.org/28121 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Martin Roth <martinroth@google.com>
Diffstat (limited to 'src/northbridge')
-rw-r--r--src/northbridge/intel/i945/acpi/i945.asl6
1 files changed, 1 insertions, 5 deletions
diff --git a/src/northbridge/intel/i945/acpi/i945.asl b/src/northbridge/intel/i945/acpi/i945.asl
index 5a932385d0..79fb371250 100644
--- a/src/northbridge/intel/i945/acpi/i945.asl
+++ b/src/northbridge/intel/i945/acpi/i945.asl
@@ -20,17 +20,13 @@
/* 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 {
+ CreateDWordField(Arg3, 0, CDW1)
Or(CDW1, 4, CDW1) // Unrecognized UUID, so set bit 2 to 1
Return(Arg3)
}