xref: /aosp_15_r20/external/coreboot/src/mainboard/ibm/sbp1/acpi/platform.asl (revision b9411a12aaaa7e1e6a6fb7c5e057f44ee179a49c) 
1/* SPDX-License-Identifier: GPL-2.0-only */
2
3/* Enable ACPI _SWS methods */
4#include <soc/intel/common/acpi/acpi_wake_source.asl>
5
6Name (_S0, Package () // mandatory system state
7{
8	0x00, 0x00, 0x00, 0x00
9})
10
11Name (_S5, Package ()  // mandatory system state
12{
13	0x07, 0x00, 0x00, 0x00
14})
15
16/* Port 80 POST */
17OperationRegion (DBG0, SystemIO, 0x80, 0x02)
18Field (DBG0, ByteAcc, Lock, Preserve)
19{
20	IO80, 8,
21	IO81, 8
22}
23
24/* Virtual UART on 0x3f8 */
25Scope(\_SB) {
26	Device(COM1) {
27		Name(_HID, EisaId("PNP0501"))
28		Name(_UID, 0x01)
29		Name(_STA,0x0F)
30		Name(_CRS, ResourceTemplate() {
31			IO(Decode16, 0x03F8, 0x03F8, 0x00, 0x08)
32			IRQNoFlags() { 4 }
33		})
34	}
35}
36
37/*
38 * The _PTS method (Prepare To Sleep) is called before the OS is
39 * entering a sleep state. The sleep state number is passed in Arg0
40 */
41
42Method (_PTS, 1)
43{
44}
45
46/* The _WAK method is called on system wakeup */
47
48Method (_WAK, 1)
49{
50	Return (Package (){ 0, 0 })
51}
52