Commit | Line | Data |
---|---|---|
b66510cb KG |
1 | /* |
2 | * ULI M1575 setup code - specific to Freescale boards | |
3 | * | |
4 | * Copyright 2007 Freescale Semiconductor Inc. | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify it | |
7 | * under the terms of the GNU General Public License as published by the | |
8 | * Free Software Foundation; either version 2 of the License, or (at your | |
9 | * option) any later version. | |
10 | */ | |
11 | ||
12 | #include <linux/stddef.h> | |
13 | #include <linux/kernel.h> | |
14 | #include <linux/pci.h> | |
15 | #include <linux/interrupt.h> | |
16 | #include <linux/mc146818rtc.h> | |
17 | ||
18 | #include <asm/system.h> | |
19 | #include <asm/pci-bridge.h> | |
20 | ||
21 | #define ULI_PIRQA 0x08 | |
22 | #define ULI_PIRQB 0x09 | |
23 | #define ULI_PIRQC 0x0a | |
24 | #define ULI_PIRQD 0x0b | |
25 | #define ULI_PIRQE 0x0c | |
26 | #define ULI_PIRQF 0x0d | |
27 | #define ULI_PIRQG 0x0e | |
28 | ||
29 | #define ULI_8259_NONE 0x00 | |
30 | #define ULI_8259_IRQ1 0x08 | |
31 | #define ULI_8259_IRQ3 0x02 | |
32 | #define ULI_8259_IRQ4 0x04 | |
33 | #define ULI_8259_IRQ5 0x05 | |
34 | #define ULI_8259_IRQ6 0x07 | |
35 | #define ULI_8259_IRQ7 0x06 | |
36 | #define ULI_8259_IRQ9 0x01 | |
37 | #define ULI_8259_IRQ10 0x03 | |
38 | #define ULI_8259_IRQ11 0x09 | |
39 | #define ULI_8259_IRQ12 0x0b | |
40 | #define ULI_8259_IRQ14 0x0d | |
41 | #define ULI_8259_IRQ15 0x0f | |
42 | ||
43 | u8 uli_pirq_to_irq[8] = { | |
44 | ULI_8259_IRQ9, /* PIRQA */ | |
45 | ULI_8259_IRQ10, /* PIRQB */ | |
46 | ULI_8259_IRQ11, /* PIRQC */ | |
47 | ULI_8259_IRQ12, /* PIRQD */ | |
48 | ULI_8259_IRQ5, /* PIRQE */ | |
49 | ULI_8259_IRQ6, /* PIRQF */ | |
50 | ULI_8259_IRQ7, /* PIRQG */ | |
51 | ULI_8259_NONE, /* PIRQH */ | |
52 | }; | |
53 | ||
54 | /* set in board code if you want this quirks to do something */ | |
55 | int uses_fsl_uli_m1575; | |
56 | ||
57 | /* Bridge */ | |
58 | static void __devinit early_uli5249(struct pci_dev *dev) | |
59 | { | |
60 | unsigned char temp; | |
61 | ||
62 | if (!uses_fsl_uli_m1575) | |
63 | return; | |
64 | ||
65 | pci_write_config_word(dev, PCI_COMMAND, PCI_COMMAND_IO | | |
66 | PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER); | |
67 | ||
68 | /* read/write lock */ | |
69 | pci_read_config_byte(dev, 0x7c, &temp); | |
70 | pci_write_config_byte(dev, 0x7c, 0x80); | |
71 | ||
72 | /* set as P2P bridge */ | |
73 | pci_write_config_byte(dev, PCI_CLASS_PROG, 0x01); | |
74 | dev->class |= 0x1; | |
75 | ||
76 | /* restore lock */ | |
77 | pci_write_config_byte(dev, 0x7c, temp); | |
78 | } | |
79 | ||
80 | ||
81 | static void __devinit quirk_uli1575(struct pci_dev *dev) | |
82 | { | |
83 | int i; | |
84 | ||
85 | if (!uses_fsl_uli_m1575) | |
86 | return; | |
87 | ||
88 | /* | |
89 | * ULI1575 interrupts route setup | |
90 | */ | |
91 | ||
92 | /* ULI1575 IRQ mapping conf register maps PIRQx to IRQn */ | |
93 | for (i = 0; i < 4; i++) { | |
94 | u8 val = uli_pirq_to_irq[i*2] | (uli_pirq_to_irq[i*2+1] << 4); | |
95 | pci_write_config_byte(dev, 0x48 + i, val); | |
96 | } | |
97 | ||
98 | /* USB 1.1 OHCI controller 1: dev 28, func 0 - IRQ12 */ | |
99 | pci_write_config_byte(dev, 0x86, ULI_PIRQD); | |
100 | ||
101 | /* USB 1.1 OHCI controller 2: dev 28, func 1 - IRQ9 */ | |
102 | pci_write_config_byte(dev, 0x87, ULI_PIRQA); | |
103 | ||
104 | /* USB 1.1 OHCI controller 3: dev 28, func 2 - IRQ10 */ | |
105 | pci_write_config_byte(dev, 0x88, ULI_PIRQB); | |
106 | ||
107 | /* Lan controller: dev 27, func 0 - IRQ6 */ | |
108 | pci_write_config_byte(dev, 0x89, ULI_PIRQF); | |
109 | ||
110 | /* AC97 Audio controller: dev 29, func 0 - IRQ6 */ | |
111 | pci_write_config_byte(dev, 0x8a, ULI_PIRQF); | |
112 | ||
113 | /* Modem controller: dev 29, func 1 - IRQ6 */ | |
114 | pci_write_config_byte(dev, 0x8b, ULI_PIRQF); | |
115 | ||
116 | /* HD Audio controller: dev 29, func 2 - IRQ6 */ | |
117 | pci_write_config_byte(dev, 0x8c, ULI_PIRQF); | |
118 | ||
119 | /* SATA controller: dev 31, func 1 - IRQ5 */ | |
120 | pci_write_config_byte(dev, 0x8d, ULI_PIRQE); | |
121 | ||
122 | /* SMB interrupt: dev 30, func 1 - IRQ7 */ | |
123 | pci_write_config_byte(dev, 0x8e, ULI_PIRQG); | |
124 | ||
125 | /* PMU ACPI SCI interrupt: dev 30, func 2 - IRQ7 */ | |
126 | pci_write_config_byte(dev, 0x8f, ULI_PIRQG); | |
127 | ||
128 | /* USB 2.0 controller: dev 28, func 3 */ | |
129 | pci_write_config_byte(dev, 0x74, ULI_8259_IRQ11); | |
130 | ||
131 | /* Primary PATA IDE IRQ: 14 | |
132 | * Secondary PATA IDE IRQ: 15 | |
133 | */ | |
134 | pci_write_config_byte(dev, 0x44, 0x30 | ULI_8259_IRQ14); | |
135 | pci_write_config_byte(dev, 0x75, ULI_8259_IRQ15); | |
136 | } | |
137 | ||
138 | static void __devinit quirk_final_uli1575(struct pci_dev *dev) | |
139 | { | |
140 | /* Set i8259 interrupt trigger | |
141 | * IRQ 3: Level | |
142 | * IRQ 4: Level | |
143 | * IRQ 5: Level | |
144 | * IRQ 6: Level | |
145 | * IRQ 7: Level | |
146 | * IRQ 9: Level | |
147 | * IRQ 10: Level | |
148 | * IRQ 11: Level | |
149 | * IRQ 12: Level | |
150 | * IRQ 14: Edge | |
151 | * IRQ 15: Edge | |
152 | */ | |
153 | if (!uses_fsl_uli_m1575) | |
154 | return; | |
155 | ||
156 | outb(0xfa, 0x4d0); | |
157 | outb(0x1e, 0x4d1); | |
158 | ||
159 | /* setup RTC */ | |
160 | CMOS_WRITE(RTC_SET, RTC_CONTROL); | |
161 | CMOS_WRITE(RTC_24H, RTC_CONTROL); | |
162 | ||
163 | /* ensure month, date, and week alarm fields are ignored */ | |
164 | CMOS_WRITE(0, RTC_VALID); | |
165 | ||
166 | outb_p(0x7c, 0x72); | |
167 | outb_p(RTC_ALARM_DONT_CARE, 0x73); | |
168 | ||
169 | outb_p(0x7d, 0x72); | |
170 | outb_p(RTC_ALARM_DONT_CARE, 0x73); | |
171 | } | |
172 | ||
173 | /* SATA */ | |
174 | static void __devinit quirk_uli5288(struct pci_dev *dev) | |
175 | { | |
176 | unsigned char c; | |
177 | unsigned int d; | |
178 | ||
179 | if (!uses_fsl_uli_m1575) | |
180 | return; | |
181 | ||
182 | /* read/write lock */ | |
183 | pci_read_config_byte(dev, 0x83, &c); | |
184 | pci_write_config_byte(dev, 0x83, c|0x80); | |
185 | ||
186 | pci_read_config_dword(dev, PCI_CLASS_REVISION, &d); | |
187 | d = (d & 0xff) | (PCI_CLASS_STORAGE_SATA_AHCI << 8); | |
188 | pci_write_config_dword(dev, PCI_CLASS_REVISION, d); | |
189 | ||
190 | /* restore lock */ | |
191 | pci_write_config_byte(dev, 0x83, c); | |
192 | ||
193 | /* disable emulated PATA mode enabled */ | |
194 | pci_read_config_byte(dev, 0x84, &c); | |
195 | pci_write_config_byte(dev, 0x84, c & ~0x01); | |
196 | } | |
197 | ||
198 | /* PATA */ | |
199 | static void __devinit quirk_uli5229(struct pci_dev *dev) | |
200 | { | |
201 | unsigned short temp; | |
202 | ||
203 | if (!uses_fsl_uli_m1575) | |
204 | return; | |
205 | ||
206 | pci_write_config_word(dev, PCI_COMMAND, PCI_COMMAND_INTX_DISABLE | | |
207 | PCI_COMMAND_MASTER | PCI_COMMAND_IO); | |
208 | ||
209 | /* Enable Native IRQ 14/15 */ | |
210 | pci_read_config_word(dev, 0x4a, &temp); | |
211 | pci_write_config_word(dev, 0x4a, temp | 0x1000); | |
212 | } | |
213 | ||
214 | /* We have to do a dummy read on the P2P for the RTC to work, WTF */ | |
215 | static void __devinit quirk_final_uli5249(struct pci_dev *dev) | |
216 | { | |
217 | int i; | |
218 | u8 *dummy; | |
219 | struct pci_bus *bus = dev->bus; | |
220 | ||
221 | for (i = 0; i < PCI_BUS_NUM_RESOURCES; i++) { | |
222 | if ((bus->resource[i]) && | |
223 | (bus->resource[i]->flags & IORESOURCE_MEM)) { | |
224 | dummy = ioremap(bus->resource[i]->start, 0x4); | |
225 | if (dummy) { | |
226 | in_8(dummy); | |
227 | iounmap(dummy); | |
228 | } | |
229 | break; | |
230 | } | |
231 | } | |
232 | } | |
233 | ||
234 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_AL, 0x5249, early_uli5249); | |
235 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AL, 0x1575, quirk_uli1575); | |
236 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AL, 0x5288, quirk_uli5288); | |
237 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AL, 0x5229, quirk_uli5229); | |
238 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AL, 0x5249, quirk_final_uli5249); | |
239 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AL, 0x1575, quirk_final_uli1575); | |
240 | ||
241 | int uli_exclude_device(struct pci_controller *hose, | |
242 | u_char bus, u_char devfn) | |
243 | { | |
244 | if (bus == (hose->first_busno + 2)) { | |
245 | /* exclude Modem controller */ | |
246 | if ((PCI_SLOT(devfn) == 29) && (PCI_FUNC(devfn) == 1)) | |
247 | return PCIBIOS_DEVICE_NOT_FOUND; | |
248 | ||
249 | /* exclude HD Audio controller */ | |
250 | if ((PCI_SLOT(devfn) == 29) && (PCI_FUNC(devfn) == 2)) | |
251 | return PCIBIOS_DEVICE_NOT_FOUND; | |
252 | } | |
253 | ||
254 | return PCIBIOS_SUCCESSFUL; | |
255 | } |