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-rw-r--r--src/mainboard/asus/f2a85-m/dsdt.asl16
1 files changed, 16 insertions, 0 deletions
diff --git a/src/mainboard/asus/f2a85-m/dsdt.asl b/src/mainboard/asus/f2a85-m/dsdt.asl
index dc0fdaa26f..674f616cf6 100644
--- a/src/mainboard/asus/f2a85-m/dsdt.asl
+++ b/src/mainboard/asus/f2a85-m/dsdt.asl
@@ -1334,6 +1334,22 @@ DefinitionBlock (
} /* end Ac97modem */
Name(CRES, ResourceTemplate() {
+ /* Set the Bus number and Secondary Bus number for the PCI0 device
+ * The Secondary bus range for PCI0 lets the system
+ * know what bus values are allowed on the downstream
+ * side of this PCI bus if there is a PCI-PCI bridge.
+ * PCI busses can have 256 secondary busses which
+ * range from [0-0xFF] but they do not need to be
+ * sequential.
+ */
+ WordBusNumber (ResourceProducer, MinFixed, MaxFixed, PosDecode,
+ 0x0000, /* address granularity */
+ 0x0000, /* range minimum */
+ 0x00FF, /* range maximum */
+ 0x0000, /* translation */
+ 0x0100, /* length */
+ ,, PSB0) /* ResourceSourceIndex, ResourceSource, DescriptorName */
+
IO(Decode16, 0x0CF8, 0x0CF8, 1, 8)
WORDIO(ResourceProducer, MinFixed, MaxFixed, PosDecode, EntireRange,