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22c21003 WZ |
1 | /* |
2 | * the EHCI Virtual Support Module of AMD CS5536 | |
3 | * | |
4 | * Copyright (C) 2007 Lemote, Inc. | |
5 | * Author : jlliu, liujl@lemote.com | |
6 | * | |
7 | * Copyright (C) 2009 Lemote, Inc. | |
f7a904df | 8 | * Author: Wu Zhangjin, wuzhangjin@gmail.com |
22c21003 WZ |
9 | * |
10 | * This program is free software; you can redistribute it and/or modify it | |
11 | * under the terms of the GNU General Public License as published by the | |
12 | * Free Software Foundation; either version 2 of the License, or (at your | |
13 | * option) any later version. | |
14 | */ | |
15 | ||
16 | #include <cs5536/cs5536.h> | |
17 | #include <cs5536/cs5536_pci.h> | |
18 | ||
19 | void pci_ehci_write_reg(int reg, u32 value) | |
20 | { | |
21 | u32 hi = 0, lo = value; | |
22 | ||
23 | switch (reg) { | |
24 | case PCI_COMMAND: | |
25 | _rdmsr(USB_MSR_REG(USB_EHCI), &hi, &lo); | |
26 | if (value & PCI_COMMAND_MASTER) | |
27 | hi |= PCI_COMMAND_MASTER; | |
28 | else | |
29 | hi &= ~PCI_COMMAND_MASTER; | |
30 | ||
31 | if (value & PCI_COMMAND_MEMORY) | |
32 | hi |= PCI_COMMAND_MEMORY; | |
33 | else | |
34 | hi &= ~PCI_COMMAND_MEMORY; | |
35 | _wrmsr(USB_MSR_REG(USB_EHCI), hi, lo); | |
36 | break; | |
37 | case PCI_STATUS: | |
38 | if (value & PCI_STATUS_PARITY) { | |
39 | _rdmsr(SB_MSR_REG(SB_ERROR), &hi, &lo); | |
40 | if (lo & SB_PARE_ERR_FLAG) { | |
41 | lo = (lo & 0x0000ffff) | SB_PARE_ERR_FLAG; | |
42 | _wrmsr(SB_MSR_REG(SB_ERROR), hi, lo); | |
43 | } | |
44 | } | |
45 | break; | |
46 | case PCI_BAR0_REG: | |
47 | if (value == PCI_BAR_RANGE_MASK) { | |
48 | _rdmsr(GLCP_MSR_REG(GLCP_SOFT_COM), &hi, &lo); | |
49 | lo |= SOFT_BAR_EHCI_FLAG; | |
50 | _wrmsr(GLCP_MSR_REG(GLCP_SOFT_COM), hi, lo); | |
51 | } else if ((value & 0x01) == 0x00) { | |
f18b2f67 WZ |
52 | _rdmsr(USB_MSR_REG(USB_EHCI), &hi, &lo); |
53 | lo = value; | |
22c21003 WZ |
54 | _wrmsr(USB_MSR_REG(USB_EHCI), hi, lo); |
55 | ||
56 | value &= 0xfffffff0; | |
57 | hi = 0x40000000 | ((value & 0xff000000) >> 24); | |
58 | lo = 0x000fffff | ((value & 0x00fff000) << 8); | |
59 | _wrmsr(GLIU_MSR_REG(GLIU_P2D_BM4), hi, lo); | |
60 | } | |
61 | break; | |
62 | case PCI_EHCI_LEGSMIEN_REG: | |
63 | _rdmsr(USB_MSR_REG(USB_EHCI), &hi, &lo); | |
64 | hi &= 0x003f0000; | |
65 | hi |= (value & 0x3f) << 16; | |
66 | _wrmsr(USB_MSR_REG(USB_EHCI), hi, lo); | |
67 | break; | |
68 | case PCI_EHCI_FLADJ_REG: | |
69 | _rdmsr(USB_MSR_REG(USB_EHCI), &hi, &lo); | |
70 | hi &= ~0x00003f00; | |
71 | hi |= value & 0x00003f00; | |
72 | _wrmsr(USB_MSR_REG(USB_EHCI), hi, lo); | |
73 | break; | |
74 | default: | |
75 | break; | |
76 | } | |
77 | } | |
78 | ||
79 | u32 pci_ehci_read_reg(int reg) | |
80 | { | |
81 | u32 conf_data = 0; | |
82 | u32 hi, lo; | |
83 | ||
84 | switch (reg) { | |
85 | case PCI_VENDOR_ID: | |
86 | conf_data = | |
87 | CFG_PCI_VENDOR_ID(CS5536_EHCI_DEVICE_ID, CS5536_VENDOR_ID); | |
88 | break; | |
89 | case PCI_COMMAND: | |
90 | _rdmsr(USB_MSR_REG(USB_EHCI), &hi, &lo); | |
91 | if (hi & PCI_COMMAND_MASTER) | |
92 | conf_data |= PCI_COMMAND_MASTER; | |
93 | if (hi & PCI_COMMAND_MEMORY) | |
94 | conf_data |= PCI_COMMAND_MEMORY; | |
95 | break; | |
96 | case PCI_STATUS: | |
97 | conf_data |= PCI_STATUS_66MHZ; | |
98 | conf_data |= PCI_STATUS_FAST_BACK; | |
99 | _rdmsr(SB_MSR_REG(SB_ERROR), &hi, &lo); | |
100 | if (lo & SB_PARE_ERR_FLAG) | |
101 | conf_data |= PCI_STATUS_PARITY; | |
102 | conf_data |= PCI_STATUS_DEVSEL_MEDIUM; | |
103 | break; | |
104 | case PCI_CLASS_REVISION: | |
105 | _rdmsr(USB_MSR_REG(USB_CAP), &hi, &lo); | |
106 | conf_data = lo & 0x000000ff; | |
107 | conf_data |= (CS5536_EHCI_CLASS_CODE << 8); | |
108 | break; | |
109 | case PCI_CACHE_LINE_SIZE: | |
110 | conf_data = | |
111 | CFG_PCI_CACHE_LINE_SIZE(PCI_NORMAL_HEADER_TYPE, | |
112 | PCI_NORMAL_LATENCY_TIMER); | |
113 | break; | |
114 | case PCI_BAR0_REG: | |
115 | _rdmsr(GLCP_MSR_REG(GLCP_SOFT_COM), &hi, &lo); | |
116 | if (lo & SOFT_BAR_EHCI_FLAG) { | |
117 | conf_data = CS5536_EHCI_RANGE | | |
118 | PCI_BASE_ADDRESS_SPACE_MEMORY; | |
119 | lo &= ~SOFT_BAR_EHCI_FLAG; | |
120 | _wrmsr(GLCP_MSR_REG(GLCP_SOFT_COM), hi, lo); | |
121 | } else { | |
122 | _rdmsr(USB_MSR_REG(USB_EHCI), &hi, &lo); | |
123 | conf_data = lo & 0xfffff000; | |
124 | } | |
125 | break; | |
126 | case PCI_CARDBUS_CIS: | |
127 | conf_data = PCI_CARDBUS_CIS_POINTER; | |
128 | break; | |
129 | case PCI_SUBSYSTEM_VENDOR_ID: | |
130 | conf_data = | |
131 | CFG_PCI_VENDOR_ID(CS5536_EHCI_SUB_ID, CS5536_SUB_VENDOR_ID); | |
132 | break; | |
133 | case PCI_ROM_ADDRESS: | |
134 | conf_data = PCI_EXPANSION_ROM_BAR; | |
135 | break; | |
136 | case PCI_CAPABILITY_LIST: | |
137 | conf_data = PCI_CAPLIST_USB_POINTER; | |
138 | break; | |
139 | case PCI_INTERRUPT_LINE: | |
140 | conf_data = | |
141 | CFG_PCI_INTERRUPT_LINE(PCI_DEFAULT_PIN, CS5536_USB_INTR); | |
142 | break; | |
143 | case PCI_EHCI_LEGSMIEN_REG: | |
144 | _rdmsr(USB_MSR_REG(USB_EHCI), &hi, &lo); | |
145 | conf_data = (hi & 0x003f0000) >> 16; | |
146 | break; | |
147 | case PCI_EHCI_LEGSMISTS_REG: | |
148 | _rdmsr(USB_MSR_REG(USB_EHCI), &hi, &lo); | |
149 | conf_data = (hi & 0x3f000000) >> 24; | |
150 | break; | |
151 | case PCI_EHCI_FLADJ_REG: | |
152 | _rdmsr(USB_MSR_REG(USB_EHCI), &hi, &lo); | |
153 | conf_data = hi & 0x00003f00; | |
154 | break; | |
155 | default: | |
156 | break; | |
157 | } | |
158 | ||
159 | return conf_data; | |
160 | } |