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-rw-r--r--src/northbridge/intel/gm45/acpi/igd.asl16
1 files changed, 16 insertions, 0 deletions
diff --git a/src/northbridge/intel/gm45/acpi/igd.asl b/src/northbridge/intel/gm45/acpi/igd.asl
index 02092fa411..f44ce800f0 100644
--- a/src/northbridge/intel/gm45/acpi/igd.asl
+++ b/src/northbridge/intel/gm45/acpi/igd.asl
@@ -23,6 +23,22 @@ Device (GFX0)
{
Name (_ADR, 0x00020000)
+ OperationRegion (GFXC, PCI_Config, 0x00, 0x0100)
+ Field (GFXC, DWordAcc, NoLock, Preserve)
+ {
+ Offset (0x10),
+ BAR0, 64
+ }
+
+ OperationRegion (GFRG, SystemMemory, And (BAR0, 0xfffffffffffffff0), 0x400000)
+ Field (GFRG, DWordAcc, NoLock, Preserve)
+ {
+ Offset (0x61250),
+ CR1, 32,
+ BCLV, 16,
+ BCLM, 16,
+ }
+
/* Display Output Switching */
Method (_DOS, 1)
{