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
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
|
/*
* the OHCI Virtual Support Module of AMD CS5536
*
* Copyright (C) 2007 Lemote, Inc.
* Author : jlliu, liujl@lemote.com
*
* Copyright (C) 2009 Lemote, Inc.
* Author: Wu Zhangjin, wuzhangjin@gmail.com
*
* 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; either version 2 of the License, or (at your
* option) any later version.
*/
#include <cs5536/cs5536.h>
#include <cs5536/cs5536_pci.h>
void pci_ohci_write_reg(int reg, u32 value)
{
u32 hi = 0, lo = value;
switch (reg) {
case PCI_COMMAND:
_rdmsr(USB_MSR_REG(USB_OHCI), &hi, &lo);
if (value & PCI_COMMAND_MASTER)
hi |= PCI_COMMAND_MASTER;
else
hi &= ~PCI_COMMAND_MASTER;
if (value & PCI_COMMAND_MEMORY)
hi |= PCI_COMMAND_MEMORY;
else
hi &= ~PCI_COMMAND_MEMORY;
_wrmsr(USB_MSR_REG(USB_OHCI), hi, lo);
break;
case PCI_STATUS:
if (value & PCI_STATUS_PARITY) {
_rdmsr(SB_MSR_REG(SB_ERROR), &hi, &lo);
if (lo & SB_PARE_ERR_FLAG) {
lo = (lo & 0x0000ffff) | SB_PARE_ERR_FLAG;
_wrmsr(SB_MSR_REG(SB_ERROR), hi, lo);
}
}
break;
case PCI_BAR0_REG:
if (value == PCI_BAR_RANGE_MASK) {
_rdmsr(GLCP_MSR_REG(GLCP_SOFT_COM), &hi, &lo);
lo |= SOFT_BAR_OHCI_FLAG;
_wrmsr(GLCP_MSR_REG(GLCP_SOFT_COM), hi, lo);
} else if ((value & 0x01) == 0x00) {
_rdmsr(USB_MSR_REG(USB_OHCI), &hi, &lo);
lo = value;
_wrmsr(USB_MSR_REG(USB_OHCI), hi, lo);
value &= 0xfffffff0;
hi = 0x40000000 | ((value & 0xff000000) >> 24);
lo = 0x000fffff | ((value & 0x00fff000) << 8);
_wrmsr(GLIU_MSR_REG(GLIU_P2D_BM3), hi, lo);
}
break;
case PCI_OHCI_INT_REG:
_rdmsr(DIVIL_MSR_REG(PIC_YSEL_LOW), &hi, &lo);
lo &= ~(0xf << PIC_YSEL_LOW_USB_SHIFT);
if (value) /* enable all the usb interrupt in PIC */
lo |= (CS5536_USB_INTR << PIC_YSEL_LOW_USB_SHIFT);
_wrmsr(DIVIL_MSR_REG(PIC_YSEL_LOW), hi, lo);
break;
default:
break;
}
}
u32 pci_ohci_read_reg(int reg)
{
u32 conf_data = 0;
u32 hi, lo;
switch (reg) {
case PCI_VENDOR_ID:
conf_data =
CFG_PCI_VENDOR_ID(CS5536_OHCI_DEVICE_ID, CS5536_VENDOR_ID);
break;
case PCI_COMMAND:
_rdmsr(USB_MSR_REG(USB_OHCI), &hi, &lo);
if (hi & PCI_COMMAND_MASTER)
conf_data |= PCI_COMMAND_MASTER;
if (hi & PCI_COMMAND_MEMORY)
conf_data |= PCI_COMMAND_MEMORY;
break;
case PCI_STATUS:
conf_data |= PCI_STATUS_66MHZ;
conf_data |= PCI_STATUS_FAST_BACK;
_rdmsr(SB_MSR_REG(SB_ERROR), &hi, &lo);
if (lo & SB_PARE_ERR_FLAG)
conf_data |= PCI_STATUS_PARITY;
conf_data |= PCI_STATUS_DEVSEL_MEDIUM;
break;
case PCI_CLASS_REVISION:
_rdmsr(USB_MSR_REG(USB_CAP), &hi, &lo);
conf_data = lo & 0x000000ff;
conf_data |= (CS5536_OHCI_CLASS_CODE << 8);
break;
case PCI_CACHE_LINE_SIZE:
conf_data =
CFG_PCI_CACHE_LINE_SIZE(PCI_NORMAL_HEADER_TYPE,
PCI_NORMAL_LATENCY_TIMER);
break;
case PCI_BAR0_REG:
_rdmsr(GLCP_MSR_REG(GLCP_SOFT_COM), &hi, &lo);
if (lo & SOFT_BAR_OHCI_FLAG) {
conf_data = CS5536_OHCI_RANGE |
PCI_BASE_ADDRESS_SPACE_MEMORY;
lo &= ~SOFT_BAR_OHCI_FLAG;
_wrmsr(GLCP_MSR_REG(GLCP_SOFT_COM), hi, lo);
} else {
_rdmsr(USB_MSR_REG(USB_OHCI), &hi, &lo);
conf_data = lo & 0xffffff00;
conf_data &= ~0x0000000f; /* 32bit mem */
}
break;
case PCI_CARDBUS_CIS:
conf_data = PCI_CARDBUS_CIS_POINTER;
break;
case PCI_SUBSYSTEM_VENDOR_ID:
conf_data =
CFG_PCI_VENDOR_ID(CS5536_OHCI_SUB_ID, CS5536_SUB_VENDOR_ID);
break;
case PCI_ROM_ADDRESS:
conf_data = PCI_EXPANSION_ROM_BAR;
break;
case PCI_CAPABILITY_LIST:
conf_data = PCI_CAPLIST_USB_POINTER;
break;
case PCI_INTERRUPT_LINE:
conf_data =
CFG_PCI_INTERRUPT_LINE(PCI_DEFAULT_PIN, CS5536_USB_INTR);
break;
case PCI_OHCI_INT_REG:
_rdmsr(DIVIL_MSR_REG(PIC_YSEL_LOW), &hi, &lo);
if ((lo & 0x00000f00) == CS5536_USB_INTR)
conf_data = 1;
break;
default:
break;
}
return conf_data;
}
|
