[POWERPC] Fix build failure on Cell when CONFIG_SPU_FS=y
[linux-2.6] / arch / powerpc / platforms / fsl_uli1575.c
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 }