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
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
|
/* SPDX-License-Identifier: GPL-2.0-only */
/* This file is part of the coreboot project. */
#include <soc/iomap.h>
/* Get pin control MMIO address */
Method (GPAD, 0x1)
{
/* Arg0 - GPIO pin number */
Return (Add(Multiply(Arg0, 4), ACPIMMIO_GPIO0_BASE))
}
/* Read pin control dword */
Method (GPRD, 0x1, Serialized)
{
/* Arg0 - GPIO pin control MMIO address */
Store (Arg0, Local0)
OperationRegion (GPDW, SystemMemory, Local0, 4)
Field (GPDW, AnyAcc, NoLock, Preserve) {
TEMP, 32
}
Return (TEMP)
}
/* Write pin control dword */
Method (GPWR, 0x2, Serialized)
{
/* Arg0 - GPIO pin control MMIO address */
/* Arg1 - Value for control register */
Store (Arg0, Local0)
OperationRegion (GPDW, SystemMemory, Local0, 4)
Field (GPDW, AnyAcc, NoLock, Preserve) {
TEMP,32
}
Store (Arg1, TEMP)
}
Method (GPGB, 0x2)
{
/*
* Returns the desired byte
* Arg0 - GPIO pin control MMIO address
* Arg1 - Desired byte (0 through 3)
*/
Store (Multiply(Arg1, 8), Local2)
Return (And(ShiftRight(GPRD(Arg0), Local2), 0x000000FF))
}
Method (GPSB, 0x3)
{
/*
* Reads dword, replace byte, write back dword
* Arg0 - GPIO pin control MMIO address
* Arg1 - Desired byte (0 through 3)
* Arg2 - Value
*/
Store (Multiply(Arg1, 8), Local2)
And(ShiftRight(GPRD(Arg0), Local2), 0xFFFFFF00, Local3)
ShiftLeft (Or(And(Arg2, 0x000000FF),Local3), Local2, Local4)
GPWR (Arg0, Local4)
}
/* Read pin control byte 0 */
Method (GPR0, 0x1)
{
/* Arg0 - GPIO pin control MMIO address */
Return (GPGB(Arg0, 0))
}
/* Read pin control byte 1 */
Method (GPR1, 0x1)
{
/* Arg0 - GPIO pin control MMIO address */
Return (GPGB(Arg0, 1))
}
/* Read pin control byte 2 */
Method (GPR2, 0x1)
{
/* Arg0 - GPIO pin control MMIO address */
Return (GPGB(Arg0, 2))
}
/* Read pin control byte 3 */
Method (GPR3, 0x1)
{
Return (GPGB(Arg0, 3))
}
/* Write pin control byte 0 */
Method (GPW0, 0x2)
{
/* Arg0 - GPIO pin control MMIO address */
/* Arg1 - Value for control register */
GPSB (Arg0, 0, Arg1)
}
/* Write pin control byte 1 */
Method (GPW1, 0x2)
{
/* Arg0 - GPIO pin control MMIO address */
/* Arg1 - Value for control register */
GPSB (Arg0, 1, Arg1)
}
/* Write pin control byte 2 */
Method (GPW2, 0x2)
{
/* Arg0 - GPIO pin control MMIO address */
/* Arg1 - Value for control register */
GPSB (Arg0, 2, Arg1)
}
/* Write pin control byte 3 */
Method (GPW3, 0x2)
{
/* Arg0 - GPIO pin control MMIO address */
/* Arg1 - Value for control register */
GPSB (Arg0, 3, Arg1)
}
|