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
|
/* SPDX-License-Identifier: GPL-2.0-only */
Device(PCI0) {
Name(_HID, EISAID("PNP0A08")) /* PCI Express Root Bridge */
Name(_CID, EISAID("PNP0A03")) /* PCI Root Bridge */
External(TOM1, IntObj) /* Generated by root_complex.c */
Method(_BBN, 0, NotSerialized) {
Return(Zero) /* Bus number = 0 */
}
Method(_STA, 0, NotSerialized) {
Return(0x0B) /* Status is visible */
}
/* Operating System Capabilities Method */
Method(_OSC, 4) {
CreateDWordField(Arg3, 0, CDW1) /* Capabilities dword 1 */
/* Check for proper PCI/PCIe UUID */
If (Arg0 == ToUUID("33DB4D5B-1FF7-401C-9657-7441C03DD766")) {
/* Let OS control everything */
Return (Arg3)
} Else {
CDW1 |= 4 /* Unrecognized UUID */
Return (Arg3)
}
}
Name(CRES, ResourceTemplate() {
WordBusNumber (ResourceProducer, MinFixed, MaxFixed, PosDecode,
0x0000, /* address granularity */
0x0000, /* range minimum */
0x00ff, /* range maximum */
0x0000, /* translation */
0x0100, /* length */
,, PSB0) /* ResourceSourceIndex, ResourceSource, DescriptorName */
IO(Decode16, 0x0cf8, 0x0cf8, 1, 8)
WORDIO(ResourceProducer, MinFixed, MaxFixed, PosDecode, EntireRange,
0x0000, /* address granularity */
0x0000, /* range minimum */
0x0cf7, /* range maximum */
0x0000, /* translation */
0x0cf8 /* length */
)
WORDIO(ResourceProducer, MinFixed, MaxFixed, PosDecode, EntireRange,
0x0000, /* address granularity */
0x0d00, /* range minimum */
0xffff, /* range maximum */
0x0000, /* translation */
0xf300 /* length */
)
Memory32Fixed(READONLY, 0x000a0000, 0x00020000, VGAM) /* VGA memory space */
Memory32Fixed(READONLY, 0x000c0000, 0x00020000, EMM1) /* Assume C0000-E0000 empty */
/* memory space for PCI BARs below 4GB */
Memory32Fixed(ReadOnly, 0x00000000, 0x00000000, MMIO)
})
Method(_CRS, 0) {
CreateDWordField(CRES, ^MMIO._BAS, MM1B)
CreateDWordField(CRES, ^MMIO._LEN, MM1L)
/* Declare memory between TOM1 and MMCONF as available for PCI MMIO. */
MM1B = TOM1
Local0 = CONFIG_MMCONF_BASE_ADDRESS
Local0 -= TOM1
MM1L = Local0
CreateWordField(CRES, ^PSB0._MAX, BMAX)
CreateWordField(CRES, ^PSB0._LEN, BLEN)
BMAX = CONFIG_MMCONF_BUS_NUMBER - 1
BLEN = CONFIG_MMCONF_BUS_NUMBER
Return(CRES) /* note to change the Name buffer */
} /* end of Method(_SB.PCI0._CRS) */
} /* End PCI0 scope */
|
