[coreboot] Why my ACPI device conflicts with "PCI Bus"

[Zheng Bao]

Hi, All,

I am debugging the UART device on Bettong(AMD Carrizo).

The device

"

Device(FUR0) {
    Name(_HID,"AMD0020")
    Name(_UID,0x0)
    Name(_CRS, ResourceTemplate() {
        IRQ(Edge, ActiveHigh, Exclusive) {10}
        Memory32Fixed(ReadWrite, 0xFEDC6000, 0x2000)
    })
    Method (_STA, 0x0, NotSerialized) {
        Return (0x0F)
    }
}
"

is  added to DSDT. On linux, it doesnt show any error or warning. On Windows,

the device manager can show the DEVICE "AMD0020". But it says the 0xFEDC6000

is used by other device "PCI Bus".

I checked the whole DSDT and can not find which device conflicts with that?

Any suggestion what else I can check?

Zheng