summaryrefslogtreecommitdiff
path: root/src/soc/intel/common/acpi/platform.asl
blob: 8984f14657793875e27bd9d130f391a28b1cb86b (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
/*
 * This file is part of the coreboot project.
 *
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; version 2 of the License.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 */

#include <include/console/post_codes.h>

External(\_SB.MPTS, MethodObj)
External(\_SB.MWAK, MethodObj)
External(\_SB.PCI0.EGPM, MethodObj)
External(\_SB.PCI0.RGPM, MethodObj)

/* Port 80 POST */

OperationRegion (POST, SystemIO, CONFIG_POST_IO_PORT, 1)
Field (POST, ByteAcc, Lock, Preserve)
{
	DBG0, 8
}

/*
 * The _PTS method (Prepare To Sleep) is called before the OS is
 * entering a sleep state. The sleep state number is passed in Arg0
 */

Method (_PTS, 1)
{
	Store (POST_OS_ENTER_PTS, DBG0)

	If (CondRefOf (\_SB.MPTS))
	{
		\_SB.MPTS (Arg0)
	}
	/*
	 * Save the current PM bits then
	 * enable GPIO PM with MISCCFG_ENABLE_GPIO_PM_CONFIG
 	 */
	If (CondRefOf (\_SB.PCI0.EGPM))
	{
		\_SB.PCI0.EGPM ()
	}
}

/* The _WAK method is called on system wakeup */

Method (_WAK, 1)
{
	Store (POST_OS_ENTER_WAKE, DBG0)

	If (CondRefOf (\_SB.MWAK))
	{
		\_SB.MWAK (Arg0)
	}
	/* Restore GPIO all Community PM */
	If (CondRefOf (\_SB.PCI0.RGPM))
	{
		\_SB.PCI0.RGPM ()
	}

	Return (Package(){0,0})
}