u-boot/arch/x86/cpu/qemu/acpi/isa.asl

/* Common legacy ISA style devices. */
Scope(\_SB.PCI0.ISA) {

    Device(RTC) {
        Name(_HID, EisaId("PNP0B00"))
        Name(_CRS, ResourceTemplate() {
            IO(Decode16, 0x0070, 0x0070, 0x10, 0x02)
            IRQNoFlags() { 8 }
            IO(Decode16, 0x0072, 0x0072, 0x02, 0x06)
        })
    }

    Device(KBD) {
        Name(_HID, EisaId("PNP0303"))
        Method(_STA, 0, NotSerialized) {
            Return (0x0f)
        }
        Name(_CRS, ResourceTemplate() {
            IO(Decode16, 0x0060, 0x0060, 0x01, 0x01)
            IO(Decode16, 0x0064, 0x0064, 0x01, 0x01)
            IRQNoFlags() { 1 }
        })
    }

    Device(MOU) {
        Name(_HID, EisaId("PNP0F13"))
        Method(_STA, 0, NotSerialized) {
            Return (0x0f)
        }
        Name(_CRS, ResourceTemplate() {
            IRQNoFlags() { 12 }
        })
    }

    Device(FDC0) {
        Name(_HID, EisaId("PNP0700"))
        Method(_STA, 0, NotSerialized) {
            Store(FDEN, Local0)
            If (LEqual(Local0, 0)) {
                Return (0x00)
            } Else {
                Return (0x0f)
            }
        }
        Name(_CRS, ResourceTemplate() {
            IO(Decode16, 0x03f2, 0x03f2, 0x00, 0x04)
            IO(Decode16, 0x03f7, 0x03f7, 0x00, 0x01)
            IRQNoFlags() { 6 }
            DMA(Compatibility, NotBusMaster, Transfer8) { 2 }
        })
    }

    Device(LPT) {
        Name(_HID, EisaId("PNP0400"))
        Method(_STA, 0, NotSerialized) {
            Store(LPEN, Local0)
            If (LEqual(Local0, 0)) {
                Return (0x00)
            } Else {
                Return (0x0f)
            }
        }
        Name(_CRS, ResourceTemplate() {
            IO(Decode16, 0x0378, 0x0378, 0x08, 0x08)
            IRQNoFlags() { 7 }
        })
    }

    Device(COM1) {
        Name(_HID, EisaId("PNP0501"))
        Name(_UID, 0x01)
        Method(_STA, 0, NotSerialized) {
            Store(CAEN, Local0)
            If (LEqual(Local0, 0)) {
                Return (0x00)
            } Else {
                Return (0x0f)
            }
        }
        Name(_CRS, ResourceTemplate() {
            IO(Decode16, 0x03f8, 0x03f8, 0x00, 0x08)
            IRQNoFlags() { 4 }
        })
    }

    Device(COM2) {
        Name(_HID, EisaId("PNP0501"))
        Name(_UID, 0x02)
        Method(_STA, 0, NotSerialized) {
            Store(CBEN, Local0)
            If (LEqual(Local0, 0)) {
                Return (0x00)
            } Else {
                Return (0x0f)
            }
        }
        Name(_CRS, ResourceTemplate() {
            IO(Decode16, 0x02f8, 0x02f8, 0x00, 0x08)
            IRQNoFlags() { 3 }
        })
    }
}