Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | /* |
2 | * This file contains work-arounds for many known PCI hardware | |
3 | * bugs. Devices present only on certain architectures (host | |
4 | * bridges et cetera) should be handled in arch-specific code. | |
5 | * | |
6 | * Note: any quirks for hotpluggable devices must _NOT_ be declared __init. | |
7 | * | |
8 | * Copyright (c) 1999 Martin Mares <mj@ucw.cz> | |
9 | * | |
7586269c DB |
10 | * Init/reset quirks for USB host controllers should be in the |
11 | * USB quirks file, where their drivers can access reuse it. | |
12 | * | |
1da177e4 LT |
13 | * The bridge optimization stuff has been removed. If you really |
14 | * have a silly BIOS which is unable to set your host bridge right, | |
15 | * use the PowerTweak utility (see http://powertweak.sourceforge.net). | |
16 | */ | |
17 | ||
18 | #include <linux/config.h> | |
19 | #include <linux/types.h> | |
20 | #include <linux/kernel.h> | |
21 | #include <linux/pci.h> | |
22 | #include <linux/init.h> | |
23 | #include <linux/delay.h> | |
25be5e6c | 24 | #include <linux/acpi.h> |
bc56b9e0 | 25 | #include "pci.h" |
1da177e4 LT |
26 | |
27 | /* Deal with broken BIOS'es that neglect to enable passive release, | |
28 | which can cause problems in combination with the 82441FX/PPro MTRRs */ | |
29 | static void __devinit quirk_passive_release(struct pci_dev *dev) | |
30 | { | |
31 | struct pci_dev *d = NULL; | |
32 | unsigned char dlc; | |
33 | ||
34 | /* We have to make sure a particular bit is set in the PIIX3 | |
35 | ISA bridge, so we have to go out and find it. */ | |
36 | while ((d = pci_get_device(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82371SB_0, d))) { | |
37 | pci_read_config_byte(d, 0x82, &dlc); | |
38 | if (!(dlc & 1<<1)) { | |
39 | printk(KERN_ERR "PCI: PIIX3: Enabling Passive Release on %s\n", pci_name(d)); | |
40 | dlc |= 1<<1; | |
41 | pci_write_config_byte(d, 0x82, dlc); | |
42 | } | |
43 | } | |
44 | } | |
45 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82441, quirk_passive_release ); | |
46 | ||
47 | /* The VIA VP2/VP3/MVP3 seem to have some 'features'. There may be a workaround | |
48 | but VIA don't answer queries. If you happen to have good contacts at VIA | |
49 | ask them for me please -- Alan | |
50 | ||
51 | This appears to be BIOS not version dependent. So presumably there is a | |
52 | chipset level fix */ | |
53 | int isa_dma_bridge_buggy; /* Exported */ | |
54 | ||
55 | static void __devinit quirk_isa_dma_hangs(struct pci_dev *dev) | |
56 | { | |
57 | if (!isa_dma_bridge_buggy) { | |
58 | isa_dma_bridge_buggy=1; | |
59 | printk(KERN_INFO "Activating ISA DMA hang workarounds.\n"); | |
60 | } | |
61 | } | |
62 | /* | |
63 | * Its not totally clear which chipsets are the problematic ones | |
64 | * We know 82C586 and 82C596 variants are affected. | |
65 | */ | |
66 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C586_0, quirk_isa_dma_hangs ); | |
67 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C596, quirk_isa_dma_hangs ); | |
68 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82371SB_0, quirk_isa_dma_hangs ); | |
69 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1533, quirk_isa_dma_hangs ); | |
70 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NEC, PCI_DEVICE_ID_NEC_CBUS_1, quirk_isa_dma_hangs ); | |
71 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NEC, PCI_DEVICE_ID_NEC_CBUS_2, quirk_isa_dma_hangs ); | |
72 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NEC, PCI_DEVICE_ID_NEC_CBUS_3, quirk_isa_dma_hangs ); | |
73 | ||
74 | int pci_pci_problems; | |
75 | ||
76 | /* | |
77 | * Chipsets where PCI->PCI transfers vanish or hang | |
78 | */ | |
79 | static void __devinit quirk_nopcipci(struct pci_dev *dev) | |
80 | { | |
81 | if ((pci_pci_problems & PCIPCI_FAIL)==0) { | |
82 | printk(KERN_INFO "Disabling direct PCI/PCI transfers.\n"); | |
83 | pci_pci_problems |= PCIPCI_FAIL; | |
84 | } | |
85 | } | |
86 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_5597, quirk_nopcipci ); | |
87 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_496, quirk_nopcipci ); | |
88 | ||
89 | /* | |
90 | * Triton requires workarounds to be used by the drivers | |
91 | */ | |
92 | static void __devinit quirk_triton(struct pci_dev *dev) | |
93 | { | |
94 | if ((pci_pci_problems&PCIPCI_TRITON)==0) { | |
95 | printk(KERN_INFO "Limiting direct PCI/PCI transfers.\n"); | |
96 | pci_pci_problems |= PCIPCI_TRITON; | |
97 | } | |
98 | } | |
99 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82437, quirk_triton ); | |
100 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82437VX, quirk_triton ); | |
101 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82439, quirk_triton ); | |
102 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82439TX, quirk_triton ); | |
103 | ||
104 | /* | |
105 | * VIA Apollo KT133 needs PCI latency patch | |
106 | * Made according to a windows driver based patch by George E. Breese | |
107 | * see PCI Latency Adjust on http://www.viahardware.com/download/viatweak.shtm | |
108 | * Also see http://www.au-ja.org/review-kt133a-1-en.phtml for | |
109 | * the info on which Mr Breese based his work. | |
110 | * | |
111 | * Updated based on further information from the site and also on | |
112 | * information provided by VIA | |
113 | */ | |
114 | static void __devinit quirk_vialatency(struct pci_dev *dev) | |
115 | { | |
116 | struct pci_dev *p; | |
117 | u8 rev; | |
118 | u8 busarb; | |
119 | /* Ok we have a potential problem chipset here. Now see if we have | |
120 | a buggy southbridge */ | |
121 | ||
122 | p = pci_get_device(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686, NULL); | |
123 | if (p!=NULL) { | |
124 | pci_read_config_byte(p, PCI_CLASS_REVISION, &rev); | |
125 | /* 0x40 - 0x4f == 686B, 0x10 - 0x2f == 686A; thanks Dan Hollis */ | |
126 | /* Check for buggy part revisions */ | |
127 | if (rev < 0x40 || rev > 0x42) | |
128 | goto exit; | |
129 | } else { | |
130 | p = pci_get_device(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8231, NULL); | |
131 | if (p==NULL) /* No problem parts */ | |
132 | goto exit; | |
133 | pci_read_config_byte(p, PCI_CLASS_REVISION, &rev); | |
134 | /* Check for buggy part revisions */ | |
135 | if (rev < 0x10 || rev > 0x12) | |
136 | goto exit; | |
137 | } | |
138 | ||
139 | /* | |
140 | * Ok we have the problem. Now set the PCI master grant to | |
141 | * occur every master grant. The apparent bug is that under high | |
142 | * PCI load (quite common in Linux of course) you can get data | |
143 | * loss when the CPU is held off the bus for 3 bus master requests | |
144 | * This happens to include the IDE controllers.... | |
145 | * | |
146 | * VIA only apply this fix when an SB Live! is present but under | |
147 | * both Linux and Windows this isnt enough, and we have seen | |
148 | * corruption without SB Live! but with things like 3 UDMA IDE | |
149 | * controllers. So we ignore that bit of the VIA recommendation.. | |
150 | */ | |
151 | ||
152 | pci_read_config_byte(dev, 0x76, &busarb); | |
153 | /* Set bit 4 and bi 5 of byte 76 to 0x01 | |
154 | "Master priority rotation on every PCI master grant */ | |
155 | busarb &= ~(1<<5); | |
156 | busarb |= (1<<4); | |
157 | pci_write_config_byte(dev, 0x76, busarb); | |
158 | printk(KERN_INFO "Applying VIA southbridge workaround.\n"); | |
159 | exit: | |
160 | pci_dev_put(p); | |
161 | } | |
162 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8363_0, quirk_vialatency ); | |
163 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8371_1, quirk_vialatency ); | |
164 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8361, quirk_vialatency ); | |
165 | ||
166 | /* | |
167 | * VIA Apollo VP3 needs ETBF on BT848/878 | |
168 | */ | |
169 | static void __devinit quirk_viaetbf(struct pci_dev *dev) | |
170 | { | |
171 | if ((pci_pci_problems&PCIPCI_VIAETBF)==0) { | |
172 | printk(KERN_INFO "Limiting direct PCI/PCI transfers.\n"); | |
173 | pci_pci_problems |= PCIPCI_VIAETBF; | |
174 | } | |
175 | } | |
176 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C597_0, quirk_viaetbf ); | |
177 | ||
178 | static void __devinit quirk_vsfx(struct pci_dev *dev) | |
179 | { | |
180 | if ((pci_pci_problems&PCIPCI_VSFX)==0) { | |
181 | printk(KERN_INFO "Limiting direct PCI/PCI transfers.\n"); | |
182 | pci_pci_problems |= PCIPCI_VSFX; | |
183 | } | |
184 | } | |
185 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C576, quirk_vsfx ); | |
186 | ||
187 | /* | |
188 | * Ali Magik requires workarounds to be used by the drivers | |
189 | * that DMA to AGP space. Latency must be set to 0xA and triton | |
190 | * workaround applied too | |
191 | * [Info kindly provided by ALi] | |
192 | */ | |
193 | static void __init quirk_alimagik(struct pci_dev *dev) | |
194 | { | |
195 | if ((pci_pci_problems&PCIPCI_ALIMAGIK)==0) { | |
196 | printk(KERN_INFO "Limiting direct PCI/PCI transfers.\n"); | |
197 | pci_pci_problems |= PCIPCI_ALIMAGIK|PCIPCI_TRITON; | |
198 | } | |
199 | } | |
200 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1647, quirk_alimagik ); | |
201 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1651, quirk_alimagik ); | |
202 | ||
203 | /* | |
204 | * Natoma has some interesting boundary conditions with Zoran stuff | |
205 | * at least | |
206 | */ | |
207 | static void __devinit quirk_natoma(struct pci_dev *dev) | |
208 | { | |
209 | if ((pci_pci_problems&PCIPCI_NATOMA)==0) { | |
210 | printk(KERN_INFO "Limiting direct PCI/PCI transfers.\n"); | |
211 | pci_pci_problems |= PCIPCI_NATOMA; | |
212 | } | |
213 | } | |
214 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82441, quirk_natoma ); | |
215 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443LX_0, quirk_natoma ); | |
216 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443LX_1, quirk_natoma ); | |
217 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443BX_0, quirk_natoma ); | |
218 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443BX_1, quirk_natoma ); | |
219 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443BX_2, quirk_natoma ); | |
220 | ||
221 | /* | |
222 | * This chip can cause PCI parity errors if config register 0xA0 is read | |
223 | * while DMAs are occurring. | |
224 | */ | |
225 | static void __devinit quirk_citrine(struct pci_dev *dev) | |
226 | { | |
227 | dev->cfg_size = 0xA0; | |
228 | } | |
229 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, quirk_citrine ); | |
230 | ||
231 | /* | |
232 | * S3 868 and 968 chips report region size equal to 32M, but they decode 64M. | |
233 | * If it's needed, re-allocate the region. | |
234 | */ | |
235 | static void __devinit quirk_s3_64M(struct pci_dev *dev) | |
236 | { | |
237 | struct resource *r = &dev->resource[0]; | |
238 | ||
239 | if ((r->start & 0x3ffffff) || r->end != r->start + 0x3ffffff) { | |
240 | r->start = 0; | |
241 | r->end = 0x3ffffff; | |
242 | } | |
243 | } | |
244 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_S3, PCI_DEVICE_ID_S3_868, quirk_s3_64M ); | |
245 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_S3, PCI_DEVICE_ID_S3_968, quirk_s3_64M ); | |
246 | ||
6693e74a LT |
247 | static void __devinit quirk_io_region(struct pci_dev *dev, unsigned region, |
248 | unsigned size, int nr, const char *name) | |
1da177e4 LT |
249 | { |
250 | region &= ~(size-1); | |
251 | if (region) { | |
085ae41f | 252 | struct pci_bus_region bus_region; |
1da177e4 LT |
253 | struct resource *res = dev->resource + nr; |
254 | ||
255 | res->name = pci_name(dev); | |
256 | res->start = region; | |
257 | res->end = region + size - 1; | |
258 | res->flags = IORESOURCE_IO; | |
085ae41f DM |
259 | |
260 | /* Convert from PCI bus to resource space. */ | |
261 | bus_region.start = res->start; | |
262 | bus_region.end = res->end; | |
263 | pcibios_bus_to_resource(dev, res, &bus_region); | |
264 | ||
1da177e4 | 265 | pci_claim_resource(dev, nr); |
6693e74a | 266 | printk("PCI quirk: region %04x-%04x claimed by %s\n", region, region + size - 1, name); |
1da177e4 LT |
267 | } |
268 | } | |
269 | ||
270 | /* | |
271 | * ATI Northbridge setups MCE the processor if you even | |
272 | * read somewhere between 0x3b0->0x3bb or read 0x3d3 | |
273 | */ | |
274 | static void __devinit quirk_ati_exploding_mce(struct pci_dev *dev) | |
275 | { | |
276 | printk(KERN_INFO "ATI Northbridge, reserving I/O ports 0x3b0 to 0x3bb.\n"); | |
277 | /* Mae rhaid i ni beidio ag edrych ar y lleoliadiau I/O hyn */ | |
278 | request_region(0x3b0, 0x0C, "RadeonIGP"); | |
279 | request_region(0x3d3, 0x01, "RadeonIGP"); | |
280 | } | |
281 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RS100, quirk_ati_exploding_mce ); | |
282 | ||
283 | /* | |
284 | * Let's make the southbridge information explicit instead | |
285 | * of having to worry about people probing the ACPI areas, | |
286 | * for example.. (Yes, it happens, and if you read the wrong | |
287 | * ACPI register it will put the machine to sleep with no | |
288 | * way of waking it up again. Bummer). | |
289 | * | |
290 | * ALI M7101: Two IO regions pointed to by words at | |
291 | * 0xE0 (64 bytes of ACPI registers) | |
292 | * 0xE2 (32 bytes of SMB registers) | |
293 | */ | |
294 | static void __devinit quirk_ali7101_acpi(struct pci_dev *dev) | |
295 | { | |
296 | u16 region; | |
297 | ||
298 | pci_read_config_word(dev, 0xE0, ®ion); | |
6693e74a | 299 | quirk_io_region(dev, region, 64, PCI_BRIDGE_RESOURCES, "ali7101 ACPI"); |
1da177e4 | 300 | pci_read_config_word(dev, 0xE2, ®ion); |
6693e74a | 301 | quirk_io_region(dev, region, 32, PCI_BRIDGE_RESOURCES+1, "ali7101 SMB"); |
1da177e4 LT |
302 | } |
303 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M7101, quirk_ali7101_acpi ); | |
304 | ||
6693e74a LT |
305 | static void piix4_io_quirk(struct pci_dev *dev, const char *name, unsigned int port, unsigned int enable) |
306 | { | |
307 | u32 devres; | |
308 | u32 mask, size, base; | |
309 | ||
310 | pci_read_config_dword(dev, port, &devres); | |
311 | if ((devres & enable) != enable) | |
312 | return; | |
313 | mask = (devres >> 16) & 15; | |
314 | base = devres & 0xffff; | |
315 | size = 16; | |
316 | for (;;) { | |
317 | unsigned bit = size >> 1; | |
318 | if ((bit & mask) == bit) | |
319 | break; | |
320 | size = bit; | |
321 | } | |
322 | /* | |
323 | * For now we only print it out. Eventually we'll want to | |
324 | * reserve it (at least if it's in the 0x1000+ range), but | |
325 | * let's get enough confirmation reports first. | |
326 | */ | |
327 | base &= -size; | |
328 | printk("%s PIO at %04x-%04x\n", name, base, base + size - 1); | |
329 | } | |
330 | ||
331 | static void piix4_mem_quirk(struct pci_dev *dev, const char *name, unsigned int port, unsigned int enable) | |
332 | { | |
333 | u32 devres; | |
334 | u32 mask, size, base; | |
335 | ||
336 | pci_read_config_dword(dev, port, &devres); | |
337 | if ((devres & enable) != enable) | |
338 | return; | |
339 | base = devres & 0xffff0000; | |
340 | mask = (devres & 0x3f) << 16; | |
341 | size = 128 << 16; | |
342 | for (;;) { | |
343 | unsigned bit = size >> 1; | |
344 | if ((bit & mask) == bit) | |
345 | break; | |
346 | size = bit; | |
347 | } | |
348 | /* | |
349 | * For now we only print it out. Eventually we'll want to | |
350 | * reserve it, but let's get enough confirmation reports first. | |
351 | */ | |
352 | base &= -size; | |
353 | printk("%s MMIO at %04x-%04x\n", name, base, base + size - 1); | |
354 | } | |
355 | ||
1da177e4 LT |
356 | /* |
357 | * PIIX4 ACPI: Two IO regions pointed to by longwords at | |
358 | * 0x40 (64 bytes of ACPI registers) | |
359 | * 0x90 (32 bytes of SMB registers) | |
6693e74a | 360 | * and a few strange programmable PIIX4 device resources. |
1da177e4 LT |
361 | */ |
362 | static void __devinit quirk_piix4_acpi(struct pci_dev *dev) | |
363 | { | |
6693e74a | 364 | u32 region, res_a; |
1da177e4 LT |
365 | |
366 | pci_read_config_dword(dev, 0x40, ®ion); | |
6693e74a | 367 | quirk_io_region(dev, region, 64, PCI_BRIDGE_RESOURCES, "PIIX4 ACPI"); |
1da177e4 | 368 | pci_read_config_dword(dev, 0x90, ®ion); |
6693e74a LT |
369 | quirk_io_region(dev, region, 32, PCI_BRIDGE_RESOURCES+1, "PIIX4 SMB"); |
370 | ||
371 | /* Device resource A has enables for some of the other ones */ | |
372 | pci_read_config_dword(dev, 0x5c, &res_a); | |
373 | ||
374 | piix4_io_quirk(dev, "PIIX4 devres B", 0x60, 3 << 21); | |
375 | piix4_io_quirk(dev, "PIIX4 devres C", 0x64, 3 << 21); | |
376 | ||
377 | /* Device resource D is just bitfields for static resources */ | |
378 | ||
379 | /* Device 12 enabled? */ | |
380 | if (res_a & (1 << 29)) { | |
381 | piix4_io_quirk(dev, "PIIX4 devres E", 0x68, 1 << 20); | |
382 | piix4_mem_quirk(dev, "PIIX4 devres F", 0x6c, 1 << 7); | |
383 | } | |
384 | /* Device 13 enabled? */ | |
385 | if (res_a & (1 << 30)) { | |
386 | piix4_io_quirk(dev, "PIIX4 devres G", 0x70, 1 << 20); | |
387 | piix4_mem_quirk(dev, "PIIX4 devres H", 0x74, 1 << 7); | |
388 | } | |
389 | piix4_io_quirk(dev, "PIIX4 devres I", 0x78, 1 << 20); | |
390 | piix4_io_quirk(dev, "PIIX4 devres J", 0x7c, 1 << 20); | |
1da177e4 LT |
391 | } |
392 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82371AB_3, quirk_piix4_acpi ); | |
393 | ||
394 | /* | |
395 | * ICH4, ICH4-M, ICH5, ICH5-M ACPI: Three IO regions pointed to by longwords at | |
396 | * 0x40 (128 bytes of ACPI, GPIO & TCO registers) | |
397 | * 0x58 (64 bytes of GPIO I/O space) | |
398 | */ | |
399 | static void __devinit quirk_ich4_lpc_acpi(struct pci_dev *dev) | |
400 | { | |
401 | u32 region; | |
402 | ||
403 | pci_read_config_dword(dev, 0x40, ®ion); | |
6693e74a | 404 | quirk_io_region(dev, region, 128, PCI_BRIDGE_RESOURCES, "ICH4 ACPI/GPIO/TCO"); |
1da177e4 LT |
405 | |
406 | pci_read_config_dword(dev, 0x58, ®ion); | |
6693e74a | 407 | quirk_io_region(dev, region, 64, PCI_BRIDGE_RESOURCES+1, "ICH4 GPIO"); |
1da177e4 LT |
408 | } |
409 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801AA_0, quirk_ich4_lpc_acpi ); | |
410 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801AB_0, quirk_ich4_lpc_acpi ); | |
411 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_0, quirk_ich4_lpc_acpi ); | |
412 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_10, quirk_ich4_lpc_acpi ); | |
413 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_0, quirk_ich4_lpc_acpi ); | |
414 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_12, quirk_ich4_lpc_acpi ); | |
415 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_0, quirk_ich4_lpc_acpi ); | |
416 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_12, quirk_ich4_lpc_acpi ); | |
417 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801EB_0, quirk_ich4_lpc_acpi ); | |
3aa8c4fe | 418 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB_1, quirk_ich4_lpc_acpi ); |
1da177e4 | 419 | |
2cea752f M |
420 | static void __devinit quirk_ich6_lpc_acpi(struct pci_dev *dev) |
421 | { | |
422 | u32 region; | |
423 | ||
424 | pci_read_config_dword(dev, 0x40, ®ion); | |
425 | quirk_io_region(dev, region, 128, PCI_BRIDGE_RESOURCES, "ICH6 ACPI/GPIO/TCO"); | |
426 | ||
427 | pci_read_config_dword(dev, 0x48, ®ion); | |
428 | quirk_io_region(dev, region, 64, PCI_BRIDGE_RESOURCES+1, "ICH6 GPIO"); | |
429 | } | |
430 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1, quirk_ich6_lpc_acpi ); | |
431 | ||
1da177e4 LT |
432 | /* |
433 | * VIA ACPI: One IO region pointed to by longword at | |
434 | * 0x48 or 0x20 (256 bytes of ACPI registers) | |
435 | */ | |
436 | static void __devinit quirk_vt82c586_acpi(struct pci_dev *dev) | |
437 | { | |
438 | u8 rev; | |
439 | u32 region; | |
440 | ||
441 | pci_read_config_byte(dev, PCI_CLASS_REVISION, &rev); | |
442 | if (rev & 0x10) { | |
443 | pci_read_config_dword(dev, 0x48, ®ion); | |
444 | region &= PCI_BASE_ADDRESS_IO_MASK; | |
6693e74a | 445 | quirk_io_region(dev, region, 256, PCI_BRIDGE_RESOURCES, "vt82c586 ACPI"); |
1da177e4 LT |
446 | } |
447 | } | |
448 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C586_3, quirk_vt82c586_acpi ); | |
449 | ||
450 | /* | |
451 | * VIA VT82C686 ACPI: Three IO region pointed to by (long)words at | |
452 | * 0x48 (256 bytes of ACPI registers) | |
453 | * 0x70 (128 bytes of hardware monitoring register) | |
454 | * 0x90 (16 bytes of SMB registers) | |
455 | */ | |
456 | static void __devinit quirk_vt82c686_acpi(struct pci_dev *dev) | |
457 | { | |
458 | u16 hm; | |
459 | u32 smb; | |
460 | ||
461 | quirk_vt82c586_acpi(dev); | |
462 | ||
463 | pci_read_config_word(dev, 0x70, &hm); | |
464 | hm &= PCI_BASE_ADDRESS_IO_MASK; | |
6693e74a | 465 | quirk_io_region(dev, hm, 128, PCI_BRIDGE_RESOURCES + 1, "vt82c868 HW-mon"); |
1da177e4 LT |
466 | |
467 | pci_read_config_dword(dev, 0x90, &smb); | |
468 | smb &= PCI_BASE_ADDRESS_IO_MASK; | |
6693e74a | 469 | quirk_io_region(dev, smb, 16, PCI_BRIDGE_RESOURCES + 2, "vt82c868 SMB"); |
1da177e4 LT |
470 | } |
471 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686_4, quirk_vt82c686_acpi ); | |
472 | ||
6d85f29b IK |
473 | /* |
474 | * VIA VT8235 ISA Bridge: Two IO regions pointed to by words at | |
475 | * 0x88 (128 bytes of power management registers) | |
476 | * 0xd0 (16 bytes of SMB registers) | |
477 | */ | |
478 | static void __devinit quirk_vt8235_acpi(struct pci_dev *dev) | |
479 | { | |
480 | u16 pm, smb; | |
481 | ||
482 | pci_read_config_word(dev, 0x88, &pm); | |
483 | pm &= PCI_BASE_ADDRESS_IO_MASK; | |
6693e74a | 484 | quirk_io_region(dev, pm, 128, PCI_BRIDGE_RESOURCES, "vt8235 PM"); |
6d85f29b IK |
485 | |
486 | pci_read_config_word(dev, 0xd0, &smb); | |
487 | smb &= PCI_BASE_ADDRESS_IO_MASK; | |
6693e74a | 488 | quirk_io_region(dev, smb, 16, PCI_BRIDGE_RESOURCES + 1, "vt8235 SMB"); |
6d85f29b IK |
489 | } |
490 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8235, quirk_vt8235_acpi); | |
491 | ||
1da177e4 LT |
492 | |
493 | #ifdef CONFIG_X86_IO_APIC | |
494 | ||
495 | #include <asm/io_apic.h> | |
496 | ||
497 | /* | |
498 | * VIA 686A/B: If an IO-APIC is active, we need to route all on-chip | |
499 | * devices to the external APIC. | |
500 | * | |
501 | * TODO: When we have device-specific interrupt routers, | |
502 | * this code will go away from quirks. | |
503 | */ | |
504 | static void __devinit quirk_via_ioapic(struct pci_dev *dev) | |
505 | { | |
506 | u8 tmp; | |
507 | ||
508 | if (nr_ioapics < 1) | |
509 | tmp = 0; /* nothing routed to external APIC */ | |
510 | else | |
511 | tmp = 0x1f; /* all known bits (4-0) routed to external APIC */ | |
512 | ||
513 | printk(KERN_INFO "PCI: %sbling Via external APIC routing\n", | |
514 | tmp == 0 ? "Disa" : "Ena"); | |
515 | ||
516 | /* Offset 0x58: External APIC IRQ output control */ | |
517 | pci_write_config_byte (dev, 0x58, tmp); | |
518 | } | |
519 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686, quirk_via_ioapic ); | |
520 | ||
a1740913 KW |
521 | /* |
522 | * VIA 8237: Some BIOSs don't set the 'Bypass APIC De-Assert Message' Bit. | |
523 | * This leads to doubled level interrupt rates. | |
524 | * Set this bit to get rid of cycle wastage. | |
525 | * Otherwise uncritical. | |
526 | */ | |
527 | static void __devinit quirk_via_vt8237_bypass_apic_deassert(struct pci_dev *dev) | |
528 | { | |
529 | u8 misc_control2; | |
530 | #define BYPASS_APIC_DEASSERT 8 | |
531 | ||
532 | pci_read_config_byte(dev, 0x5B, &misc_control2); | |
533 | if (!(misc_control2 & BYPASS_APIC_DEASSERT)) { | |
534 | printk(KERN_INFO "PCI: Bypassing VIA 8237 APIC De-Assert Message\n"); | |
535 | pci_write_config_byte(dev, 0x5B, misc_control2|BYPASS_APIC_DEASSERT); | |
536 | } | |
537 | } | |
538 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, quirk_via_vt8237_bypass_apic_deassert); | |
539 | ||
1da177e4 LT |
540 | /* |
541 | * The AMD io apic can hang the box when an apic irq is masked. | |
542 | * We check all revs >= B0 (yet not in the pre production!) as the bug | |
543 | * is currently marked NoFix | |
544 | * | |
545 | * We have multiple reports of hangs with this chipset that went away with | |
546 | * noapic specified. For the moment we assume its the errata. We may be wrong | |
547 | * of course. However the advice is demonstrably good even if so.. | |
548 | */ | |
549 | static void __devinit quirk_amd_ioapic(struct pci_dev *dev) | |
550 | { | |
551 | u8 rev; | |
552 | ||
553 | pci_read_config_byte(dev, PCI_REVISION_ID, &rev); | |
554 | if (rev >= 0x02) { | |
555 | printk(KERN_WARNING "I/O APIC: AMD Errata #22 may be present. In the event of instability try\n"); | |
556 | printk(KERN_WARNING " : booting with the \"noapic\" option.\n"); | |
557 | } | |
558 | } | |
559 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_VIPER_7410, quirk_amd_ioapic ); | |
560 | ||
561 | static void __init quirk_ioapic_rmw(struct pci_dev *dev) | |
562 | { | |
563 | if (dev->devfn == 0 && dev->bus->number == 0) | |
564 | sis_apic_bug = 1; | |
565 | } | |
566 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SI, PCI_ANY_ID, quirk_ioapic_rmw ); | |
567 | ||
568 | int pci_msi_quirk; | |
569 | ||
570 | #define AMD8131_revA0 0x01 | |
571 | #define AMD8131_revB0 0x11 | |
572 | #define AMD8131_MISC 0x40 | |
573 | #define AMD8131_NIOAMODE_BIT 0 | |
574 | static void __init quirk_amd_8131_ioapic(struct pci_dev *dev) | |
575 | { | |
576 | unsigned char revid, tmp; | |
577 | ||
578 | pci_msi_quirk = 1; | |
579 | printk(KERN_WARNING "PCI: MSI quirk detected. pci_msi_quirk set.\n"); | |
580 | ||
581 | if (nr_ioapics == 0) | |
582 | return; | |
583 | ||
584 | pci_read_config_byte(dev, PCI_REVISION_ID, &revid); | |
585 | if (revid == AMD8131_revA0 || revid == AMD8131_revB0) { | |
586 | printk(KERN_INFO "Fixing up AMD8131 IOAPIC mode\n"); | |
587 | pci_read_config_byte( dev, AMD8131_MISC, &tmp); | |
588 | tmp &= ~(1 << AMD8131_NIOAMODE_BIT); | |
589 | pci_write_config_byte( dev, AMD8131_MISC, tmp); | |
590 | } | |
591 | } | |
592 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8131_APIC, quirk_amd_8131_ioapic ); | |
593 | ||
1e062767 NS |
594 | static void __init quirk_svw_msi(struct pci_dev *dev) |
595 | { | |
596 | pci_msi_quirk = 1; | |
597 | printk(KERN_WARNING "PCI: MSI quirk detected. pci_msi_quirk set.\n"); | |
598 | } | |
599 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_GCNB_LE, quirk_svw_msi ); | |
1da177e4 LT |
600 | #endif /* CONFIG_X86_IO_APIC */ |
601 | ||
602 | ||
1da177e4 LT |
603 | /* |
604 | * FIXME: it is questionable that quirk_via_acpi | |
605 | * is needed. It shows up as an ISA bridge, and does not | |
606 | * support the PCI_INTERRUPT_LINE register at all. Therefore | |
607 | * it seems like setting the pci_dev's 'irq' to the | |
608 | * value of the ACPI SCI interrupt is only done for convenience. | |
609 | * -jgarzik | |
610 | */ | |
611 | static void __devinit quirk_via_acpi(struct pci_dev *d) | |
612 | { | |
613 | /* | |
614 | * VIA ACPI device: SCI IRQ line in PCI config byte 0x42 | |
615 | */ | |
616 | u8 irq; | |
617 | pci_read_config_byte(d, 0x42, &irq); | |
618 | irq &= 0xf; | |
619 | if (irq && (irq != 2)) | |
620 | d->irq = irq; | |
621 | } | |
622 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C586_3, quirk_via_acpi ); | |
623 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686_4, quirk_via_acpi ); | |
624 | ||
93cffffa BH |
625 | /* |
626 | * Via 686A/B: The PCI_INTERRUPT_LINE register for the on-chip | |
627 | * devices, USB0/1, AC97, MC97, and ACPI, has an unusual feature: | |
628 | * when written, it makes an internal connection to the PIC. | |
629 | * For these devices, this register is defined to be 4 bits wide. | |
630 | * Normally this is fine. However for IO-APIC motherboards, or | |
631 | * non-x86 architectures (yes Via exists on PPC among other places), | |
632 | * we must mask the PCI_INTERRUPT_LINE value versus 0xf to get | |
633 | * interrupts delivered properly. | |
634 | */ | |
635 | static void quirk_via_irq(struct pci_dev *dev) | |
25be5e6c LB |
636 | { |
637 | u8 irq, new_irq; | |
638 | ||
25be5e6c LB |
639 | new_irq = dev->irq & 0xf; |
640 | pci_read_config_byte(dev, PCI_INTERRUPT_LINE, &irq); | |
641 | if (new_irq != irq) { | |
93cffffa | 642 | printk(KERN_INFO "PCI: Via IRQ fixup for %s, from %d to %d\n", |
25be5e6c LB |
643 | pci_name(dev), irq, new_irq); |
644 | udelay(15); /* unknown if delay really needed */ | |
645 | pci_write_config_byte(dev, PCI_INTERRUPT_LINE, new_irq); | |
646 | } | |
647 | } | |
93cffffa | 648 | DECLARE_PCI_FIXUP_ENABLE(PCI_VENDOR_ID_VIA, PCI_ANY_ID, quirk_via_irq); |
25be5e6c | 649 | |
1da177e4 LT |
650 | /* |
651 | * VIA VT82C598 has its device ID settable and many BIOSes | |
652 | * set it to the ID of VT82C597 for backward compatibility. | |
653 | * We need to switch it off to be able to recognize the real | |
654 | * type of the chip. | |
655 | */ | |
656 | static void __devinit quirk_vt82c598_id(struct pci_dev *dev) | |
657 | { | |
658 | pci_write_config_byte(dev, 0xfc, 0); | |
659 | pci_read_config_word(dev, PCI_DEVICE_ID, &dev->device); | |
660 | } | |
661 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C597_0, quirk_vt82c598_id ); | |
662 | ||
663 | /* | |
664 | * CardBus controllers have a legacy base address that enables them | |
665 | * to respond as i82365 pcmcia controllers. We don't want them to | |
666 | * do this even if the Linux CardBus driver is not loaded, because | |
667 | * the Linux i82365 driver does not (and should not) handle CardBus. | |
668 | */ | |
669 | static void __devinit quirk_cardbus_legacy(struct pci_dev *dev) | |
670 | { | |
671 | if ((PCI_CLASS_BRIDGE_CARDBUS << 8) ^ dev->class) | |
672 | return; | |
673 | pci_write_config_dword(dev, PCI_CB_LEGACY_MODE_BASE, 0); | |
674 | } | |
675 | DECLARE_PCI_FIXUP_FINAL(PCI_ANY_ID, PCI_ANY_ID, quirk_cardbus_legacy); | |
676 | ||
677 | /* | |
678 | * Following the PCI ordering rules is optional on the AMD762. I'm not | |
679 | * sure what the designers were smoking but let's not inhale... | |
680 | * | |
681 | * To be fair to AMD, it follows the spec by default, its BIOS people | |
682 | * who turn it off! | |
683 | */ | |
684 | static void __devinit quirk_amd_ordering(struct pci_dev *dev) | |
685 | { | |
686 | u32 pcic; | |
687 | pci_read_config_dword(dev, 0x4C, &pcic); | |
688 | if ((pcic&6)!=6) { | |
689 | pcic |= 6; | |
690 | printk(KERN_WARNING "BIOS failed to enable PCI standards compliance, fixing this error.\n"); | |
691 | pci_write_config_dword(dev, 0x4C, pcic); | |
692 | pci_read_config_dword(dev, 0x84, &pcic); | |
693 | pcic |= (1<<23); /* Required in this mode */ | |
694 | pci_write_config_dword(dev, 0x84, pcic); | |
695 | } | |
696 | } | |
697 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_FE_GATE_700C, quirk_amd_ordering ); | |
698 | ||
699 | /* | |
700 | * DreamWorks provided workaround for Dunord I-3000 problem | |
701 | * | |
702 | * This card decodes and responds to addresses not apparently | |
703 | * assigned to it. We force a larger allocation to ensure that | |
704 | * nothing gets put too close to it. | |
705 | */ | |
706 | static void __devinit quirk_dunord ( struct pci_dev * dev ) | |
707 | { | |
708 | struct resource *r = &dev->resource [1]; | |
709 | r->start = 0; | |
710 | r->end = 0xffffff; | |
711 | } | |
712 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_DUNORD, PCI_DEVICE_ID_DUNORD_I3000, quirk_dunord ); | |
713 | ||
714 | /* | |
715 | * i82380FB mobile docking controller: its PCI-to-PCI bridge | |
716 | * is subtractive decoding (transparent), and does indicate this | |
717 | * in the ProgIf. Unfortunately, the ProgIf value is wrong - 0x80 | |
718 | * instead of 0x01. | |
719 | */ | |
720 | static void __devinit quirk_transparent_bridge(struct pci_dev *dev) | |
721 | { | |
722 | dev->transparent = 1; | |
723 | } | |
724 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82380FB, quirk_transparent_bridge ); | |
725 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_TOSHIBA, 0x605, quirk_transparent_bridge ); | |
726 | ||
727 | /* | |
728 | * Common misconfiguration of the MediaGX/Geode PCI master that will | |
729 | * reduce PCI bandwidth from 70MB/s to 25MB/s. See the GXM/GXLV/GX1 | |
730 | * datasheets found at http://www.national.com/ds/GX for info on what | |
731 | * these bits do. <christer@weinigel.se> | |
732 | */ | |
733 | static void __init quirk_mediagx_master(struct pci_dev *dev) | |
734 | { | |
735 | u8 reg; | |
736 | pci_read_config_byte(dev, 0x41, ®); | |
737 | if (reg & 2) { | |
738 | reg &= ~2; | |
739 | printk(KERN_INFO "PCI: Fixup for MediaGX/Geode Slave Disconnect Boundary (0x41=0x%02x)\n", reg); | |
740 | pci_write_config_byte(dev, 0x41, reg); | |
741 | } | |
742 | } | |
743 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CYRIX, PCI_DEVICE_ID_CYRIX_PCI_MASTER, quirk_mediagx_master ); | |
744 | ||
745 | /* | |
746 | * As per PCI spec, ignore base address registers 0-3 of the IDE controllers | |
747 | * running in Compatible mode (bits 0 and 2 in the ProgIf for primary and | |
748 | * secondary channels respectively). If the device reports Compatible mode | |
749 | * but does use BAR0-3 for address decoding, we assume that firmware has | |
750 | * programmed these BARs with standard values (0x1f0,0x3f4 and 0x170,0x374). | |
751 | * Exceptions (if they exist) must be handled in chip/architecture specific | |
752 | * fixups. | |
753 | * | |
754 | * Note: for non x86 people. You may need an arch specific quirk to handle | |
755 | * moving IDE devices to native mode as well. Some plug in card devices power | |
756 | * up in compatible mode and assume the BIOS will adjust them. | |
757 | * | |
758 | * Q: should we load the 0x1f0,0x3f4 into the registers or zap them as | |
759 | * we do now ? We don't want is pci_enable_device to come along | |
760 | * and assign new resources. Both approaches work for that. | |
761 | */ | |
762 | static void __devinit quirk_ide_bases(struct pci_dev *dev) | |
763 | { | |
764 | struct resource *res; | |
765 | int first_bar = 2, last_bar = 0; | |
766 | ||
767 | if ((dev->class >> 8) != PCI_CLASS_STORAGE_IDE) | |
768 | return; | |
769 | ||
770 | res = &dev->resource[0]; | |
771 | ||
772 | /* primary channel: ProgIf bit 0, BAR0, BAR1 */ | |
773 | if (!(dev->class & 1) && (res[0].flags || res[1].flags)) { | |
774 | res[0].start = res[0].end = res[0].flags = 0; | |
775 | res[1].start = res[1].end = res[1].flags = 0; | |
776 | first_bar = 0; | |
777 | last_bar = 1; | |
778 | } | |
779 | ||
780 | /* secondary channel: ProgIf bit 2, BAR2, BAR3 */ | |
781 | if (!(dev->class & 4) && (res[2].flags || res[3].flags)) { | |
782 | res[2].start = res[2].end = res[2].flags = 0; | |
783 | res[3].start = res[3].end = res[3].flags = 0; | |
784 | last_bar = 3; | |
785 | } | |
786 | ||
787 | if (!last_bar) | |
788 | return; | |
789 | ||
790 | printk(KERN_INFO "PCI: Ignoring BAR%d-%d of IDE controller %s\n", | |
791 | first_bar, last_bar, pci_name(dev)); | |
792 | } | |
793 | DECLARE_PCI_FIXUP_HEADER(PCI_ANY_ID, PCI_ANY_ID, quirk_ide_bases); | |
794 | ||
795 | /* | |
796 | * Ensure C0 rev restreaming is off. This is normally done by | |
797 | * the BIOS but in the odd case it is not the results are corruption | |
798 | * hence the presence of a Linux check | |
799 | */ | |
800 | static void __init quirk_disable_pxb(struct pci_dev *pdev) | |
801 | { | |
802 | u16 config; | |
803 | u8 rev; | |
804 | ||
805 | pci_read_config_byte(pdev, PCI_REVISION_ID, &rev); | |
806 | if (rev != 0x04) /* Only C0 requires this */ | |
807 | return; | |
808 | pci_read_config_word(pdev, 0x40, &config); | |
809 | if (config & (1<<6)) { | |
810 | config &= ~(1<<6); | |
811 | pci_write_config_word(pdev, 0x40, config); | |
812 | printk(KERN_INFO "PCI: C0 revision 450NX. Disabling PCI restreaming.\n"); | |
813 | } | |
814 | } | |
815 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82454NX, quirk_disable_pxb ); | |
816 | ||
1da177e4 LT |
817 | |
818 | /* | |
819 | * Serverworks CSB5 IDE does not fully support native mode | |
820 | */ | |
821 | static void __devinit quirk_svwks_csb5ide(struct pci_dev *pdev) | |
822 | { | |
823 | u8 prog; | |
824 | pci_read_config_byte(pdev, PCI_CLASS_PROG, &prog); | |
825 | if (prog & 5) { | |
826 | prog &= ~5; | |
827 | pdev->class &= ~5; | |
828 | pci_write_config_byte(pdev, PCI_CLASS_PROG, prog); | |
829 | /* need to re-assign BARs for compat mode */ | |
830 | quirk_ide_bases(pdev); | |
831 | } | |
832 | } | |
833 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_CSB5IDE, quirk_svwks_csb5ide ); | |
834 | ||
835 | /* | |
836 | * Intel 82801CAM ICH3-M datasheet says IDE modes must be the same | |
837 | */ | |
838 | static void __init quirk_ide_samemode(struct pci_dev *pdev) | |
839 | { | |
840 | u8 prog; | |
841 | ||
842 | pci_read_config_byte(pdev, PCI_CLASS_PROG, &prog); | |
843 | ||
844 | if (((prog & 1) && !(prog & 4)) || ((prog & 4) && !(prog & 1))) { | |
845 | printk(KERN_INFO "PCI: IDE mode mismatch; forcing legacy mode\n"); | |
846 | prog &= ~5; | |
847 | pdev->class &= ~5; | |
848 | pci_write_config_byte(pdev, PCI_CLASS_PROG, prog); | |
849 | /* need to re-assign BARs for compat mode */ | |
850 | quirk_ide_bases(pdev); | |
851 | } | |
852 | } | |
853 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_10, quirk_ide_samemode); | |
854 | ||
855 | /* This was originally an Alpha specific thing, but it really fits here. | |
856 | * The i82375 PCI/EISA bridge appears as non-classified. Fix that. | |
857 | */ | |
858 | static void __init quirk_eisa_bridge(struct pci_dev *dev) | |
859 | { | |
860 | dev->class = PCI_CLASS_BRIDGE_EISA << 8; | |
861 | } | |
862 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82375, quirk_eisa_bridge ); | |
863 | ||
864 | /* | |
865 | * On ASUS P4B boards, the SMBus PCI Device within the ICH2/4 southbridge | |
866 | * is not activated. The myth is that Asus said that they do not want the | |
867 | * users to be irritated by just another PCI Device in the Win98 device | |
868 | * manager. (see the file prog/hotplug/README.p4b in the lm_sensors | |
869 | * package 2.7.0 for details) | |
870 | * | |
871 | * The SMBus PCI Device can be activated by setting a bit in the ICH LPC | |
872 | * bridge. Unfortunately, this device has no subvendor/subdevice ID. So it | |
873 | * becomes necessary to do this tweak in two steps -- I've chosen the Host | |
874 | * bridge as trigger. | |
875 | */ | |
876 | static int __initdata asus_hides_smbus = 0; | |
877 | ||
878 | static void __init asus_hides_smbus_hostbridge(struct pci_dev *dev) | |
879 | { | |
880 | if (unlikely(dev->subsystem_vendor == PCI_VENDOR_ID_ASUSTEK)) { | |
881 | if (dev->device == PCI_DEVICE_ID_INTEL_82845_HB) | |
882 | switch(dev->subsystem_device) { | |
a00db371 | 883 | case 0x8025: /* P4B-LX */ |
1da177e4 LT |
884 | case 0x8070: /* P4B */ |
885 | case 0x8088: /* P4B533 */ | |
886 | case 0x1626: /* L3C notebook */ | |
887 | asus_hides_smbus = 1; | |
888 | } | |
889 | if (dev->device == PCI_DEVICE_ID_INTEL_82845G_HB) | |
890 | switch(dev->subsystem_device) { | |
891 | case 0x80b1: /* P4GE-V */ | |
892 | case 0x80b2: /* P4PE */ | |
893 | case 0x8093: /* P4B533-V */ | |
894 | asus_hides_smbus = 1; | |
895 | } | |
896 | if (dev->device == PCI_DEVICE_ID_INTEL_82850_HB) | |
897 | switch(dev->subsystem_device) { | |
898 | case 0x8030: /* P4T533 */ | |
899 | asus_hides_smbus = 1; | |
900 | } | |
901 | if (dev->device == PCI_DEVICE_ID_INTEL_7205_0) | |
902 | switch (dev->subsystem_device) { | |
903 | case 0x8070: /* P4G8X Deluxe */ | |
904 | asus_hides_smbus = 1; | |
905 | } | |
906 | if (dev->device == PCI_DEVICE_ID_INTEL_82855GM_HB) | |
907 | switch (dev->subsystem_device) { | |
908 | case 0x1751: /* M2N notebook */ | |
909 | case 0x1821: /* M5N notebook */ | |
910 | asus_hides_smbus = 1; | |
911 | } | |
912 | if (dev->device == PCI_DEVICE_ID_INTEL_82855PM_HB) | |
913 | switch (dev->subsystem_device) { | |
914 | case 0x184b: /* W1N notebook */ | |
915 | case 0x186a: /* M6Ne notebook */ | |
916 | asus_hides_smbus = 1; | |
917 | } | |
acc06632 M |
918 | if (dev->device == PCI_DEVICE_ID_INTEL_82915GM_HB) { |
919 | switch (dev->subsystem_device) { | |
920 | case 0x1882: /* M6V notebook */ | |
921 | asus_hides_smbus = 1; | |
922 | } | |
923 | } | |
1da177e4 LT |
924 | } else if (unlikely(dev->subsystem_vendor == PCI_VENDOR_ID_HP)) { |
925 | if (dev->device == PCI_DEVICE_ID_INTEL_82855PM_HB) | |
926 | switch(dev->subsystem_device) { | |
927 | case 0x088C: /* HP Compaq nc8000 */ | |
928 | case 0x0890: /* HP Compaq nc6000 */ | |
929 | asus_hides_smbus = 1; | |
930 | } | |
931 | if (dev->device == PCI_DEVICE_ID_INTEL_82865_HB) | |
932 | switch (dev->subsystem_device) { | |
933 | case 0x12bc: /* HP D330L */ | |
e3b1bd57 | 934 | case 0x12bd: /* HP D530 */ |
1da177e4 LT |
935 | asus_hides_smbus = 1; |
936 | } | |
937 | } else if (unlikely(dev->subsystem_vendor == PCI_VENDOR_ID_TOSHIBA)) { | |
938 | if (dev->device == PCI_DEVICE_ID_INTEL_82855GM_HB) | |
939 | switch(dev->subsystem_device) { | |
940 | case 0x0001: /* Toshiba Satellite A40 */ | |
941 | asus_hides_smbus = 1; | |
942 | } | |
e96e2f14 DG |
943 | if (dev->device == PCI_DEVICE_ID_INTEL_82855PM_HB) |
944 | switch(dev->subsystem_device) { | |
945 | case 0x0001: /* Toshiba Tecra M2 */ | |
946 | asus_hides_smbus = 1; | |
947 | } | |
1da177e4 LT |
948 | } else if (unlikely(dev->subsystem_vendor == PCI_VENDOR_ID_SAMSUNG)) { |
949 | if (dev->device == PCI_DEVICE_ID_INTEL_82855PM_HB) | |
950 | switch(dev->subsystem_device) { | |
951 | case 0xC00C: /* Samsung P35 notebook */ | |
952 | asus_hides_smbus = 1; | |
953 | } | |
c87f883e RIZ |
954 | } else if (unlikely(dev->subsystem_vendor == PCI_VENDOR_ID_COMPAQ)) { |
955 | if (dev->device == PCI_DEVICE_ID_INTEL_82855PM_HB) | |
956 | switch(dev->subsystem_device) { | |
957 | case 0x0058: /* Compaq Evo N620c */ | |
958 | asus_hides_smbus = 1; | |
959 | } | |
1da177e4 LT |
960 | } |
961 | } | |
962 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82845_HB, asus_hides_smbus_hostbridge ); | |
963 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82845G_HB, asus_hides_smbus_hostbridge ); | |
964 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82850_HB, asus_hides_smbus_hostbridge ); | |
965 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82865_HB, asus_hides_smbus_hostbridge ); | |
966 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_7205_0, asus_hides_smbus_hostbridge ); | |
967 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82855PM_HB, asus_hides_smbus_hostbridge ); | |
968 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82855GM_HB, asus_hides_smbus_hostbridge ); | |
acc06632 | 969 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82915GM_HB, asus_hides_smbus_hostbridge ); |
1da177e4 LT |
970 | |
971 | static void __init asus_hides_smbus_lpc(struct pci_dev *dev) | |
972 | { | |
973 | u16 val; | |
974 | ||
975 | if (likely(!asus_hides_smbus)) | |
976 | return; | |
977 | ||
978 | pci_read_config_word(dev, 0xF2, &val); | |
979 | if (val & 0x8) { | |
980 | pci_write_config_word(dev, 0xF2, val & (~0x8)); | |
981 | pci_read_config_word(dev, 0xF2, &val); | |
982 | if (val & 0x8) | |
983 | printk(KERN_INFO "PCI: i801 SMBus device continues to play 'hide and seek'! 0x%x\n", val); | |
984 | else | |
985 | printk(KERN_INFO "PCI: Enabled i801 SMBus device\n"); | |
986 | } | |
987 | } | |
988 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_0, asus_hides_smbus_lpc ); | |
989 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_0, asus_hides_smbus_lpc ); | |
990 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_12, asus_hides_smbus_lpc ); | |
991 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_12, asus_hides_smbus_lpc ); | |
992 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801EB_0, asus_hides_smbus_lpc ); | |
993 | ||
acc06632 M |
994 | static void __init asus_hides_smbus_lpc_ich6(struct pci_dev *dev) |
995 | { | |
996 | u32 val, rcba; | |
997 | void __iomem *base; | |
998 | ||
999 | if (likely(!asus_hides_smbus)) | |
1000 | return; | |
1001 | pci_read_config_dword(dev, 0xF0, &rcba); | |
1002 | base = ioremap_nocache(rcba & 0xFFFFC000, 0x4000); /* use bits 31:14, 16 kB aligned */ | |
1003 | if (base == NULL) return; | |
1004 | val=readl(base + 0x3418); /* read the Function Disable register, dword mode only */ | |
1005 | writel(val & 0xFFFFFFF7, base + 0x3418); /* enable the SMBus device */ | |
1006 | iounmap(base); | |
1007 | printk(KERN_INFO "PCI: Enabled ICH6/i801 SMBus device\n"); | |
1008 | } | |
1009 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1, asus_hides_smbus_lpc_ich6 ); | |
1010 | ||
1da177e4 LT |
1011 | /* |
1012 | * SiS 96x south bridge: BIOS typically hides SMBus device... | |
1013 | */ | |
1014 | static void __init quirk_sis_96x_smbus(struct pci_dev *dev) | |
1015 | { | |
1016 | u8 val = 0; | |
1017 | printk(KERN_INFO "Enabling SiS 96x SMBus.\n"); | |
1018 | pci_read_config_byte(dev, 0x77, &val); | |
1019 | pci_write_config_byte(dev, 0x77, val & ~0x10); | |
1020 | pci_read_config_byte(dev, 0x77, &val); | |
1021 | } | |
1022 | ||
1da177e4 LT |
1023 | /* |
1024 | * ... This is further complicated by the fact that some SiS96x south | |
1025 | * bridges pretend to be 85C503/5513 instead. In that case see if we | |
1026 | * spotted a compatible north bridge to make sure. | |
1027 | * (pci_find_device doesn't work yet) | |
1028 | * | |
1029 | * We can also enable the sis96x bit in the discovery register.. | |
1030 | */ | |
1031 | static int __devinitdata sis_96x_compatible = 0; | |
1032 | ||
1033 | #define SIS_DETECT_REGISTER 0x40 | |
1034 | ||
1035 | static void __init quirk_sis_503(struct pci_dev *dev) | |
1036 | { | |
1037 | u8 reg; | |
1038 | u16 devid; | |
1039 | ||
1040 | pci_read_config_byte(dev, SIS_DETECT_REGISTER, ®); | |
1041 | pci_write_config_byte(dev, SIS_DETECT_REGISTER, reg | (1 << 6)); | |
1042 | pci_read_config_word(dev, PCI_DEVICE_ID, &devid); | |
1043 | if (((devid & 0xfff0) != 0x0960) && (devid != 0x0018)) { | |
1044 | pci_write_config_byte(dev, SIS_DETECT_REGISTER, reg); | |
1045 | return; | |
1046 | } | |
1047 | ||
1048 | /* Make people aware that we changed the config.. */ | |
1049 | printk(KERN_WARNING "Uncovering SIS%x that hid as a SIS503 (compatible=%d)\n", devid, sis_96x_compatible); | |
1050 | ||
1051 | /* | |
1052 | * Ok, it now shows up as a 96x.. The 96x quirks are after | |
1053 | * the 503 quirk in the quirk table, so they'll automatically | |
1054 | * run and enable things like the SMBus device | |
1055 | */ | |
1056 | dev->device = devid; | |
1057 | } | |
1058 | ||
1059 | static void __init quirk_sis_96x_compatible(struct pci_dev *dev) | |
1060 | { | |
1061 | sis_96x_compatible = 1; | |
1062 | } | |
1063 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_645, quirk_sis_96x_compatible ); | |
1064 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_646, quirk_sis_96x_compatible ); | |
1065 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_648, quirk_sis_96x_compatible ); | |
1066 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_650, quirk_sis_96x_compatible ); | |
1067 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_651, quirk_sis_96x_compatible ); | |
1068 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_735, quirk_sis_96x_compatible ); | |
1069 | ||
1070 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_503, quirk_sis_503 ); | |
1071 | ||
1072 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_961, quirk_sis_96x_smbus ); | |
1073 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_962, quirk_sis_96x_smbus ); | |
1074 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_963, quirk_sis_96x_smbus ); | |
1075 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_LPC, quirk_sis_96x_smbus ); | |
1076 | ||
1077 | #ifdef CONFIG_X86_IO_APIC | |
1078 | static void __init quirk_alder_ioapic(struct pci_dev *pdev) | |
1079 | { | |
1080 | int i; | |
1081 | ||
1082 | if ((pdev->class >> 8) != 0xff00) | |
1083 | return; | |
1084 | ||
1085 | /* the first BAR is the location of the IO APIC...we must | |
1086 | * not touch this (and it's already covered by the fixmap), so | |
1087 | * forcibly insert it into the resource tree */ | |
1088 | if (pci_resource_start(pdev, 0) && pci_resource_len(pdev, 0)) | |
1089 | insert_resource(&iomem_resource, &pdev->resource[0]); | |
1090 | ||
1091 | /* The next five BARs all seem to be rubbish, so just clean | |
1092 | * them out */ | |
1093 | for (i=1; i < 6; i++) { | |
1094 | memset(&pdev->resource[i], 0, sizeof(pdev->resource[i])); | |
1095 | } | |
1096 | ||
1097 | } | |
1098 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_EESSC, quirk_alder_ioapic ); | |
1099 | #endif | |
1100 | ||
cc675230 | 1101 | #ifdef CONFIG_SCSI_SATA_INTEL_COMBINED |
1da177e4 LT |
1102 | static void __devinit quirk_intel_ide_combined(struct pci_dev *pdev) |
1103 | { | |
1104 | u8 prog, comb, tmp; | |
1105 | int ich = 0; | |
1106 | ||
1107 | /* | |
1108 | * Narrow down to Intel SATA PCI devices. | |
1109 | */ | |
1110 | switch (pdev->device) { | |
1111 | /* PCI ids taken from drivers/scsi/ata_piix.c */ | |
1112 | case 0x24d1: | |
1113 | case 0x24df: | |
1114 | case 0x25a3: | |
1115 | case 0x25b0: | |
1116 | ich = 5; | |
1117 | break; | |
1118 | case 0x2651: | |
1119 | case 0x2652: | |
1120 | case 0x2653: | |
c368ca4e | 1121 | case 0x2680: /* ESB2 */ |
1da177e4 LT |
1122 | ich = 6; |
1123 | break; | |
1124 | case 0x27c0: | |
1125 | case 0x27c4: | |
1126 | ich = 7; | |
1127 | break; | |
1128 | default: | |
1129 | /* we do not handle this PCI device */ | |
1130 | return; | |
1131 | } | |
1132 | ||
1133 | /* | |
1134 | * Read combined mode register. | |
1135 | */ | |
1136 | pci_read_config_byte(pdev, 0x90, &tmp); /* combined mode reg */ | |
1137 | ||
1138 | if (ich == 5) { | |
1139 | tmp &= 0x6; /* interesting bits 2:1, PATA primary/secondary */ | |
1140 | if (tmp == 0x4) /* bits 10x */ | |
1141 | comb = (1 << 0); /* SATA port 0, PATA port 1 */ | |
1142 | else if (tmp == 0x6) /* bits 11x */ | |
1143 | comb = (1 << 2); /* PATA port 0, SATA port 1 */ | |
1144 | else | |
1145 | return; /* not in combined mode */ | |
1146 | } else { | |
1147 | WARN_ON((ich != 6) && (ich != 7)); | |
1148 | tmp &= 0x3; /* interesting bits 1:0 */ | |
1149 | if (tmp & (1 << 0)) | |
1150 | comb = (1 << 2); /* PATA port 0, SATA port 1 */ | |
1151 | else if (tmp & (1 << 1)) | |
1152 | comb = (1 << 0); /* SATA port 0, PATA port 1 */ | |
1153 | else | |
1154 | return; /* not in combined mode */ | |
1155 | } | |
1156 | ||
1157 | /* | |
1158 | * Read programming interface register. | |
1159 | * (Tells us if it's legacy or native mode) | |
1160 | */ | |
1161 | pci_read_config_byte(pdev, PCI_CLASS_PROG, &prog); | |
1162 | ||
1163 | /* if SATA port is in native mode, we're ok. */ | |
1164 | if (prog & comb) | |
1165 | return; | |
1166 | ||
1167 | /* SATA port is in legacy mode. Reserve port so that | |
1168 | * IDE driver does not attempt to use it. If request_region | |
1169 | * fails, it will be obvious at boot time, so we don't bother | |
1170 | * checking return values. | |
1171 | */ | |
1172 | if (comb == (1 << 0)) | |
1173 | request_region(0x1f0, 8, "libata"); /* port 0 */ | |
1174 | else | |
1175 | request_region(0x170, 8, "libata"); /* port 1 */ | |
1176 | } | |
1177 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_ANY_ID, quirk_intel_ide_combined ); | |
cc675230 | 1178 | #endif /* CONFIG_SCSI_SATA_INTEL_COMBINED */ |
1da177e4 LT |
1179 | |
1180 | ||
1181 | int pcie_mch_quirk; | |
1182 | ||
1183 | static void __devinit quirk_pcie_mch(struct pci_dev *pdev) | |
1184 | { | |
1185 | pcie_mch_quirk = 1; | |
1186 | } | |
1187 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7520_MCH, quirk_pcie_mch ); | |
1188 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7320_MCH, quirk_pcie_mch ); | |
1189 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7525_MCH, quirk_pcie_mch ); | |
1190 | ||
4602b88d KA |
1191 | |
1192 | /* | |
1193 | * It's possible for the MSI to get corrupted if shpc and acpi | |
1194 | * are used together on certain PXH-based systems. | |
1195 | */ | |
1196 | static void __devinit quirk_pcie_pxh(struct pci_dev *dev) | |
1197 | { | |
1198 | disable_msi_mode(dev, pci_find_capability(dev, PCI_CAP_ID_MSI), | |
1199 | PCI_CAP_ID_MSI); | |
1200 | dev->no_msi = 1; | |
1201 | ||
1202 | printk(KERN_WARNING "PCI: PXH quirk detected, " | |
1203 | "disabling MSI for SHPC device\n"); | |
1204 | } | |
1205 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXHD_0, quirk_pcie_pxh); | |
1206 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXHD_1, quirk_pcie_pxh); | |
1207 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_0, quirk_pcie_pxh); | |
1208 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_1, quirk_pcie_pxh); | |
1209 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXHV, quirk_pcie_pxh); | |
1210 | ||
1211 | ||
1da177e4 LT |
1212 | static void __devinit quirk_netmos(struct pci_dev *dev) |
1213 | { | |
1214 | unsigned int num_parallel = (dev->subsystem_device & 0xf0) >> 4; | |
1215 | unsigned int num_serial = dev->subsystem_device & 0xf; | |
1216 | ||
1217 | /* | |
1218 | * These Netmos parts are multiport serial devices with optional | |
1219 | * parallel ports. Even when parallel ports are present, they | |
1220 | * are identified as class SERIAL, which means the serial driver | |
1221 | * will claim them. To prevent this, mark them as class OTHER. | |
1222 | * These combo devices should be claimed by parport_serial. | |
1223 | * | |
1224 | * The subdevice ID is of the form 0x00PS, where <P> is the number | |
1225 | * of parallel ports and <S> is the number of serial ports. | |
1226 | */ | |
1227 | switch (dev->device) { | |
1228 | case PCI_DEVICE_ID_NETMOS_9735: | |
1229 | case PCI_DEVICE_ID_NETMOS_9745: | |
1230 | case PCI_DEVICE_ID_NETMOS_9835: | |
1231 | case PCI_DEVICE_ID_NETMOS_9845: | |
1232 | case PCI_DEVICE_ID_NETMOS_9855: | |
1233 | if ((dev->class >> 8) == PCI_CLASS_COMMUNICATION_SERIAL && | |
1234 | num_parallel) { | |
1235 | printk(KERN_INFO "PCI: Netmos %04x (%u parallel, " | |
1236 | "%u serial); changing class SERIAL to OTHER " | |
1237 | "(use parport_serial)\n", | |
1238 | dev->device, num_parallel, num_serial); | |
1239 | dev->class = (PCI_CLASS_COMMUNICATION_OTHER << 8) | | |
1240 | (dev->class & 0xff); | |
1241 | } | |
1242 | } | |
1243 | } | |
1244 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NETMOS, PCI_ANY_ID, quirk_netmos); | |
1245 | ||
1246 | static void pci_do_fixups(struct pci_dev *dev, struct pci_fixup *f, struct pci_fixup *end) | |
1247 | { | |
1248 | while (f < end) { | |
1249 | if ((f->vendor == dev->vendor || f->vendor == (u16) PCI_ANY_ID) && | |
1250 | (f->device == dev->device || f->device == (u16) PCI_ANY_ID)) { | |
1251 | pr_debug("PCI: Calling quirk %p for %s\n", f->hook, pci_name(dev)); | |
1252 | f->hook(dev); | |
1253 | } | |
1254 | f++; | |
1255 | } | |
1256 | } | |
1257 | ||
1258 | extern struct pci_fixup __start_pci_fixups_early[]; | |
1259 | extern struct pci_fixup __end_pci_fixups_early[]; | |
1260 | extern struct pci_fixup __start_pci_fixups_header[]; | |
1261 | extern struct pci_fixup __end_pci_fixups_header[]; | |
1262 | extern struct pci_fixup __start_pci_fixups_final[]; | |
1263 | extern struct pci_fixup __end_pci_fixups_final[]; | |
1264 | extern struct pci_fixup __start_pci_fixups_enable[]; | |
1265 | extern struct pci_fixup __end_pci_fixups_enable[]; | |
1266 | ||
1267 | ||
1268 | void pci_fixup_device(enum pci_fixup_pass pass, struct pci_dev *dev) | |
1269 | { | |
1270 | struct pci_fixup *start, *end; | |
1271 | ||
1272 | switch(pass) { | |
1273 | case pci_fixup_early: | |
1274 | start = __start_pci_fixups_early; | |
1275 | end = __end_pci_fixups_early; | |
1276 | break; | |
1277 | ||
1278 | case pci_fixup_header: | |
1279 | start = __start_pci_fixups_header; | |
1280 | end = __end_pci_fixups_header; | |
1281 | break; | |
1282 | ||
1283 | case pci_fixup_final: | |
1284 | start = __start_pci_fixups_final; | |
1285 | end = __end_pci_fixups_final; | |
1286 | break; | |
1287 | ||
1288 | case pci_fixup_enable: | |
1289 | start = __start_pci_fixups_enable; | |
1290 | end = __end_pci_fixups_enable; | |
1291 | break; | |
1292 | ||
1293 | default: | |
1294 | /* stupid compiler warning, you would think with an enum... */ | |
1295 | return; | |
1296 | } | |
1297 | pci_do_fixups(dev, start, end); | |
1298 | } | |
1299 | ||
1300 | EXPORT_SYMBOL(pcie_mch_quirk); | |
1301 | #ifdef CONFIG_HOTPLUG | |
1302 | EXPORT_SYMBOL(pci_fixup_device); | |
1303 | #endif |