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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
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 *
David Brownell75862692005-09-23 17:14:37 -070010 * Init/reset quirks for USB host controllers should be in the
11 * USB quirks file, where their drivers can access reuse it.
12 *
Linus Torvalds1da177e2005-04-16 15:20:36 -070013 * 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
Linus Torvalds1da177e2005-04-16 15:20:36 -070018#include <linux/types.h>
19#include <linux/kernel.h>
20#include <linux/pci.h>
21#include <linux/init.h>
22#include <linux/delay.h>
Len Brown25be5e62005-05-27 04:21:50 -040023#include <linux/acpi.h>
Greg KHbc56b9e2005-04-08 14:53:31 +090024#include "pci.h"
Linus Torvalds1da177e2005-04-16 15:20:36 -070025
Doug Thompsonbd8481e2006-05-08 17:06:09 -070026/* The Mellanox Tavor device gives false positive parity errors
27 * Mark this device with a broken_parity_status, to allow
28 * PCI scanning code to "skip" this now blacklisted device.
29 */
30static void __devinit quirk_mellanox_tavor(struct pci_dev *dev)
31{
32 dev->broken_parity_status = 1; /* This device gives false positives */
33}
34DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_MELLANOX,PCI_DEVICE_ID_MELLANOX_TAVOR,quirk_mellanox_tavor);
35DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_MELLANOX,PCI_DEVICE_ID_MELLANOX_TAVOR_BRIDGE,quirk_mellanox_tavor);
36
Linus Torvalds1da177e2005-04-16 15:20:36 -070037/* Deal with broken BIOS'es that neglect to enable passive release,
38 which can cause problems in combination with the 82441FX/PPro MTRRs */
Alan Cox1597cac2006-12-04 15:14:45 -080039static void quirk_passive_release(struct pci_dev *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -070040{
41 struct pci_dev *d = NULL;
42 unsigned char dlc;
43
44 /* We have to make sure a particular bit is set in the PIIX3
45 ISA bridge, so we have to go out and find it. */
46 while ((d = pci_get_device(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82371SB_0, d))) {
47 pci_read_config_byte(d, 0x82, &dlc);
48 if (!(dlc & 1<<1)) {
49 printk(KERN_ERR "PCI: PIIX3: Enabling Passive Release on %s\n", pci_name(d));
50 dlc |= 1<<1;
51 pci_write_config_byte(d, 0x82, dlc);
52 }
53 }
54}
55DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82441, quirk_passive_release );
Alan Cox1597cac2006-12-04 15:14:45 -080056DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82441, quirk_passive_release );
Linus Torvalds1da177e2005-04-16 15:20:36 -070057
58/* The VIA VP2/VP3/MVP3 seem to have some 'features'. There may be a workaround
59 but VIA don't answer queries. If you happen to have good contacts at VIA
60 ask them for me please -- Alan
61
62 This appears to be BIOS not version dependent. So presumably there is a
63 chipset level fix */
Adrian Bunkc30ca1d2006-12-19 05:13:15 +010064int isa_dma_bridge_buggy;
65EXPORT_SYMBOL(isa_dma_bridge_buggy);
Linus Torvalds1da177e2005-04-16 15:20:36 -070066
67static void __devinit quirk_isa_dma_hangs(struct pci_dev *dev)
68{
69 if (!isa_dma_bridge_buggy) {
70 isa_dma_bridge_buggy=1;
71 printk(KERN_INFO "Activating ISA DMA hang workarounds.\n");
72 }
73}
74 /*
75 * Its not totally clear which chipsets are the problematic ones
76 * We know 82C586 and 82C596 variants are affected.
77 */
78DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C586_0, quirk_isa_dma_hangs );
79DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C596, quirk_isa_dma_hangs );
80DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82371SB_0, quirk_isa_dma_hangs );
81DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1533, quirk_isa_dma_hangs );
82DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NEC, PCI_DEVICE_ID_NEC_CBUS_1, quirk_isa_dma_hangs );
83DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NEC, PCI_DEVICE_ID_NEC_CBUS_2, quirk_isa_dma_hangs );
84DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NEC, PCI_DEVICE_ID_NEC_CBUS_3, quirk_isa_dma_hangs );
85
86int pci_pci_problems;
Adrian Bunkc30ca1d2006-12-19 05:13:15 +010087EXPORT_SYMBOL(pci_pci_problems);
Linus Torvalds1da177e2005-04-16 15:20:36 -070088
89/*
90 * Chipsets where PCI->PCI transfers vanish or hang
91 */
92static void __devinit quirk_nopcipci(struct pci_dev *dev)
93{
94 if ((pci_pci_problems & PCIPCI_FAIL)==0) {
95 printk(KERN_INFO "Disabling direct PCI/PCI transfers.\n");
96 pci_pci_problems |= PCIPCI_FAIL;
97 }
98}
Adrian Bunkc30ca1d2006-12-19 05:13:15 +010099DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_5597, quirk_nopcipci );
100DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_496, quirk_nopcipci );
Alan Cox236561e2006-09-30 23:27:03 -0700101
102static void __devinit quirk_nopciamd(struct pci_dev *dev)
103{
104 u8 rev;
105 pci_read_config_byte(dev, 0x08, &rev);
106 if (rev == 0x13) {
107 /* Erratum 24 */
108 printk(KERN_INFO "Chipset erratum: Disabling direct PCI/AGP transfers.\n");
109 pci_pci_problems |= PCIAGP_FAIL;
110 }
111}
Alan Cox236561e2006-09-30 23:27:03 -0700112DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8151_0, quirk_nopciamd );
Linus Torvalds1da177e2005-04-16 15:20:36 -0700113
114/*
115 * Triton requires workarounds to be used by the drivers
116 */
117static void __devinit quirk_triton(struct pci_dev *dev)
118{
119 if ((pci_pci_problems&PCIPCI_TRITON)==0) {
120 printk(KERN_INFO "Limiting direct PCI/PCI transfers.\n");
121 pci_pci_problems |= PCIPCI_TRITON;
122 }
123}
124DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82437, quirk_triton );
125DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82437VX, quirk_triton );
126DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82439, quirk_triton );
127DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82439TX, quirk_triton );
128
129/*
130 * VIA Apollo KT133 needs PCI latency patch
131 * Made according to a windows driver based patch by George E. Breese
132 * see PCI Latency Adjust on http://www.viahardware.com/download/viatweak.shtm
133 * Also see http://www.au-ja.org/review-kt133a-1-en.phtml for
134 * the info on which Mr Breese based his work.
135 *
136 * Updated based on further information from the site and also on
137 * information provided by VIA
138 */
Alan Cox1597cac2006-12-04 15:14:45 -0800139static void quirk_vialatency(struct pci_dev *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700140{
141 struct pci_dev *p;
142 u8 rev;
143 u8 busarb;
144 /* Ok we have a potential problem chipset here. Now see if we have
145 a buggy southbridge */
146
147 p = pci_get_device(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686, NULL);
148 if (p!=NULL) {
149 pci_read_config_byte(p, PCI_CLASS_REVISION, &rev);
150 /* 0x40 - 0x4f == 686B, 0x10 - 0x2f == 686A; thanks Dan Hollis */
151 /* Check for buggy part revisions */
152 if (rev < 0x40 || rev > 0x42)
153 goto exit;
154 } else {
155 p = pci_get_device(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8231, NULL);
156 if (p==NULL) /* No problem parts */
157 goto exit;
158 pci_read_config_byte(p, PCI_CLASS_REVISION, &rev);
159 /* Check for buggy part revisions */
160 if (rev < 0x10 || rev > 0x12)
161 goto exit;
162 }
163
164 /*
165 * Ok we have the problem. Now set the PCI master grant to
166 * occur every master grant. The apparent bug is that under high
167 * PCI load (quite common in Linux of course) you can get data
168 * loss when the CPU is held off the bus for 3 bus master requests
169 * This happens to include the IDE controllers....
170 *
171 * VIA only apply this fix when an SB Live! is present but under
172 * both Linux and Windows this isnt enough, and we have seen
173 * corruption without SB Live! but with things like 3 UDMA IDE
174 * controllers. So we ignore that bit of the VIA recommendation..
175 */
176
177 pci_read_config_byte(dev, 0x76, &busarb);
178 /* Set bit 4 and bi 5 of byte 76 to 0x01
179 "Master priority rotation on every PCI master grant */
180 busarb &= ~(1<<5);
181 busarb |= (1<<4);
182 pci_write_config_byte(dev, 0x76, busarb);
183 printk(KERN_INFO "Applying VIA southbridge workaround.\n");
184exit:
185 pci_dev_put(p);
186}
187DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8363_0, quirk_vialatency );
188DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8371_1, quirk_vialatency );
189DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8361, quirk_vialatency );
Alan Cox1597cac2006-12-04 15:14:45 -0800190/* Must restore this on a resume from RAM */
191DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8363_0, quirk_vialatency );
192DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8371_1, quirk_vialatency );
193DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8361, quirk_vialatency );
Linus Torvalds1da177e2005-04-16 15:20:36 -0700194
195/*
196 * VIA Apollo VP3 needs ETBF on BT848/878
197 */
198static void __devinit quirk_viaetbf(struct pci_dev *dev)
199{
200 if ((pci_pci_problems&PCIPCI_VIAETBF)==0) {
201 printk(KERN_INFO "Limiting direct PCI/PCI transfers.\n");
202 pci_pci_problems |= PCIPCI_VIAETBF;
203 }
204}
205DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C597_0, quirk_viaetbf );
206
207static void __devinit quirk_vsfx(struct pci_dev *dev)
208{
209 if ((pci_pci_problems&PCIPCI_VSFX)==0) {
210 printk(KERN_INFO "Limiting direct PCI/PCI transfers.\n");
211 pci_pci_problems |= PCIPCI_VSFX;
212 }
213}
214DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C576, quirk_vsfx );
215
216/*
217 * Ali Magik requires workarounds to be used by the drivers
218 * that DMA to AGP space. Latency must be set to 0xA and triton
219 * workaround applied too
220 * [Info kindly provided by ALi]
221 */
222static void __init quirk_alimagik(struct pci_dev *dev)
223{
224 if ((pci_pci_problems&PCIPCI_ALIMAGIK)==0) {
225 printk(KERN_INFO "Limiting direct PCI/PCI transfers.\n");
226 pci_pci_problems |= PCIPCI_ALIMAGIK|PCIPCI_TRITON;
227 }
228}
229DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1647, quirk_alimagik );
230DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1651, quirk_alimagik );
231
232/*
233 * Natoma has some interesting boundary conditions with Zoran stuff
234 * at least
235 */
236static void __devinit quirk_natoma(struct pci_dev *dev)
237{
238 if ((pci_pci_problems&PCIPCI_NATOMA)==0) {
239 printk(KERN_INFO "Limiting direct PCI/PCI transfers.\n");
240 pci_pci_problems |= PCIPCI_NATOMA;
241 }
242}
243DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82441, quirk_natoma );
244DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443LX_0, quirk_natoma );
245DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443LX_1, quirk_natoma );
246DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443BX_0, quirk_natoma );
247DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443BX_1, quirk_natoma );
248DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443BX_2, quirk_natoma );
249
250/*
251 * This chip can cause PCI parity errors if config register 0xA0 is read
252 * while DMAs are occurring.
253 */
254static void __devinit quirk_citrine(struct pci_dev *dev)
255{
256 dev->cfg_size = 0xA0;
257}
258DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, quirk_citrine );
259
260/*
261 * S3 868 and 968 chips report region size equal to 32M, but they decode 64M.
262 * If it's needed, re-allocate the region.
263 */
264static void __devinit quirk_s3_64M(struct pci_dev *dev)
265{
266 struct resource *r = &dev->resource[0];
267
268 if ((r->start & 0x3ffffff) || r->end != r->start + 0x3ffffff) {
269 r->start = 0;
270 r->end = 0x3ffffff;
271 }
272}
273DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_S3, PCI_DEVICE_ID_S3_868, quirk_s3_64M );
274DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_S3, PCI_DEVICE_ID_S3_968, quirk_s3_64M );
275
Linus Torvalds6693e742005-10-25 20:40:09 -0700276static void __devinit quirk_io_region(struct pci_dev *dev, unsigned region,
277 unsigned size, int nr, const char *name)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700278{
279 region &= ~(size-1);
280 if (region) {
David S. Miller085ae412005-08-08 13:19:08 -0700281 struct pci_bus_region bus_region;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700282 struct resource *res = dev->resource + nr;
283
284 res->name = pci_name(dev);
285 res->start = region;
286 res->end = region + size - 1;
287 res->flags = IORESOURCE_IO;
David S. Miller085ae412005-08-08 13:19:08 -0700288
289 /* Convert from PCI bus to resource space. */
290 bus_region.start = res->start;
291 bus_region.end = res->end;
292 pcibios_bus_to_resource(dev, res, &bus_region);
293
Linus Torvalds1da177e2005-04-16 15:20:36 -0700294 pci_claim_resource(dev, nr);
Linus Torvalds6693e742005-10-25 20:40:09 -0700295 printk("PCI quirk: region %04x-%04x claimed by %s\n", region, region + size - 1, name);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700296 }
297}
298
299/*
300 * ATI Northbridge setups MCE the processor if you even
301 * read somewhere between 0x3b0->0x3bb or read 0x3d3
302 */
303static void __devinit quirk_ati_exploding_mce(struct pci_dev *dev)
304{
305 printk(KERN_INFO "ATI Northbridge, reserving I/O ports 0x3b0 to 0x3bb.\n");
306 /* Mae rhaid i ni beidio ag edrych ar y lleoliadiau I/O hyn */
307 request_region(0x3b0, 0x0C, "RadeonIGP");
308 request_region(0x3d3, 0x01, "RadeonIGP");
309}
310DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RS100, quirk_ati_exploding_mce );
311
312/*
313 * Let's make the southbridge information explicit instead
314 * of having to worry about people probing the ACPI areas,
315 * for example.. (Yes, it happens, and if you read the wrong
316 * ACPI register it will put the machine to sleep with no
317 * way of waking it up again. Bummer).
318 *
319 * ALI M7101: Two IO regions pointed to by words at
320 * 0xE0 (64 bytes of ACPI registers)
321 * 0xE2 (32 bytes of SMB registers)
322 */
323static void __devinit quirk_ali7101_acpi(struct pci_dev *dev)
324{
325 u16 region;
326
327 pci_read_config_word(dev, 0xE0, &region);
Linus Torvalds6693e742005-10-25 20:40:09 -0700328 quirk_io_region(dev, region, 64, PCI_BRIDGE_RESOURCES, "ali7101 ACPI");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700329 pci_read_config_word(dev, 0xE2, &region);
Linus Torvalds6693e742005-10-25 20:40:09 -0700330 quirk_io_region(dev, region, 32, PCI_BRIDGE_RESOURCES+1, "ali7101 SMB");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700331}
332DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M7101, quirk_ali7101_acpi );
333
Linus Torvalds6693e742005-10-25 20:40:09 -0700334static void piix4_io_quirk(struct pci_dev *dev, const char *name, unsigned int port, unsigned int enable)
335{
336 u32 devres;
337 u32 mask, size, base;
338
339 pci_read_config_dword(dev, port, &devres);
340 if ((devres & enable) != enable)
341 return;
342 mask = (devres >> 16) & 15;
343 base = devres & 0xffff;
344 size = 16;
345 for (;;) {
346 unsigned bit = size >> 1;
347 if ((bit & mask) == bit)
348 break;
349 size = bit;
350 }
351 /*
352 * For now we only print it out. Eventually we'll want to
353 * reserve it (at least if it's in the 0x1000+ range), but
354 * let's get enough confirmation reports first.
355 */
356 base &= -size;
357 printk("%s PIO at %04x-%04x\n", name, base, base + size - 1);
358}
359
360static void piix4_mem_quirk(struct pci_dev *dev, const char *name, unsigned int port, unsigned int enable)
361{
362 u32 devres;
363 u32 mask, size, base;
364
365 pci_read_config_dword(dev, port, &devres);
366 if ((devres & enable) != enable)
367 return;
368 base = devres & 0xffff0000;
369 mask = (devres & 0x3f) << 16;
370 size = 128 << 16;
371 for (;;) {
372 unsigned bit = size >> 1;
373 if ((bit & mask) == bit)
374 break;
375 size = bit;
376 }
377 /*
378 * For now we only print it out. Eventually we'll want to
379 * reserve it, but let's get enough confirmation reports first.
380 */
381 base &= -size;
382 printk("%s MMIO at %04x-%04x\n", name, base, base + size - 1);
383}
384
Linus Torvalds1da177e2005-04-16 15:20:36 -0700385/*
386 * PIIX4 ACPI: Two IO regions pointed to by longwords at
387 * 0x40 (64 bytes of ACPI registers)
Linus Torvalds08db2a72005-10-30 14:40:07 -0800388 * 0x90 (16 bytes of SMB registers)
Linus Torvalds6693e742005-10-25 20:40:09 -0700389 * and a few strange programmable PIIX4 device resources.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700390 */
391static void __devinit quirk_piix4_acpi(struct pci_dev *dev)
392{
Linus Torvalds6693e742005-10-25 20:40:09 -0700393 u32 region, res_a;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700394
395 pci_read_config_dword(dev, 0x40, &region);
Linus Torvalds6693e742005-10-25 20:40:09 -0700396 quirk_io_region(dev, region, 64, PCI_BRIDGE_RESOURCES, "PIIX4 ACPI");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700397 pci_read_config_dword(dev, 0x90, &region);
Linus Torvalds08db2a72005-10-30 14:40:07 -0800398 quirk_io_region(dev, region, 16, PCI_BRIDGE_RESOURCES+1, "PIIX4 SMB");
Linus Torvalds6693e742005-10-25 20:40:09 -0700399
400 /* Device resource A has enables for some of the other ones */
401 pci_read_config_dword(dev, 0x5c, &res_a);
402
403 piix4_io_quirk(dev, "PIIX4 devres B", 0x60, 3 << 21);
404 piix4_io_quirk(dev, "PIIX4 devres C", 0x64, 3 << 21);
405
406 /* Device resource D is just bitfields for static resources */
407
408 /* Device 12 enabled? */
409 if (res_a & (1 << 29)) {
410 piix4_io_quirk(dev, "PIIX4 devres E", 0x68, 1 << 20);
411 piix4_mem_quirk(dev, "PIIX4 devres F", 0x6c, 1 << 7);
412 }
413 /* Device 13 enabled? */
414 if (res_a & (1 << 30)) {
415 piix4_io_quirk(dev, "PIIX4 devres G", 0x70, 1 << 20);
416 piix4_mem_quirk(dev, "PIIX4 devres H", 0x74, 1 << 7);
417 }
418 piix4_io_quirk(dev, "PIIX4 devres I", 0x78, 1 << 20);
419 piix4_io_quirk(dev, "PIIX4 devres J", 0x7c, 1 << 20);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700420}
421DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82371AB_3, quirk_piix4_acpi );
Linus Torvaldsc6764662006-07-12 08:29:46 -0700422DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443MX_3, quirk_piix4_acpi );
Linus Torvalds1da177e2005-04-16 15:20:36 -0700423
424/*
425 * ICH4, ICH4-M, ICH5, ICH5-M ACPI: Three IO regions pointed to by longwords at
426 * 0x40 (128 bytes of ACPI, GPIO & TCO registers)
427 * 0x58 (64 bytes of GPIO I/O space)
428 */
429static void __devinit quirk_ich4_lpc_acpi(struct pci_dev *dev)
430{
431 u32 region;
432
433 pci_read_config_dword(dev, 0x40, &region);
Linus Torvalds6693e742005-10-25 20:40:09 -0700434 quirk_io_region(dev, region, 128, PCI_BRIDGE_RESOURCES, "ICH4 ACPI/GPIO/TCO");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700435
436 pci_read_config_dword(dev, 0x58, &region);
Linus Torvalds6693e742005-10-25 20:40:09 -0700437 quirk_io_region(dev, region, 64, PCI_BRIDGE_RESOURCES+1, "ICH4 GPIO");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700438}
439DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801AA_0, quirk_ich4_lpc_acpi );
440DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801AB_0, quirk_ich4_lpc_acpi );
441DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_0, quirk_ich4_lpc_acpi );
442DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_10, quirk_ich4_lpc_acpi );
443DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_0, quirk_ich4_lpc_acpi );
444DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_12, quirk_ich4_lpc_acpi );
445DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_0, quirk_ich4_lpc_acpi );
446DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_12, quirk_ich4_lpc_acpi );
447DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801EB_0, quirk_ich4_lpc_acpi );
R.Marek@sh.cvut.cz3aa8c4f2005-04-21 10:49:06 +0000448DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB_1, quirk_ich4_lpc_acpi );
Linus Torvalds1da177e2005-04-16 15:20:36 -0700449
R.Marek@sh.cvut.cz2cea7522005-09-27 21:54:51 +0000450static void __devinit quirk_ich6_lpc_acpi(struct pci_dev *dev)
451{
452 u32 region;
453
454 pci_read_config_dword(dev, 0x40, &region);
455 quirk_io_region(dev, region, 128, PCI_BRIDGE_RESOURCES, "ICH6 ACPI/GPIO/TCO");
456
457 pci_read_config_dword(dev, 0x48, &region);
458 quirk_io_region(dev, region, 64, PCI_BRIDGE_RESOURCES+1, "ICH6 GPIO");
459}
Daniel Ritz65ae4dd2006-08-22 07:29:10 -0700460DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_0, quirk_ich6_lpc_acpi );
R.Marek@sh.cvut.cz2cea7522005-09-27 21:54:51 +0000461DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1, quirk_ich6_lpc_acpi );
Daniel Ritzbacedce2006-09-25 16:52:21 -0700462DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH7_0, quirk_ich6_lpc_acpi );
463DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH7_1, quirk_ich6_lpc_acpi );
464DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH7_31, quirk_ich6_lpc_acpi );
465DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH8_0, quirk_ich6_lpc_acpi );
466DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH8_2, quirk_ich6_lpc_acpi );
467DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH8_3, quirk_ich6_lpc_acpi );
R.Marek@sh.cvut.cz2cea7522005-09-27 21:54:51 +0000468
Linus Torvalds1da177e2005-04-16 15:20:36 -0700469/*
470 * VIA ACPI: One IO region pointed to by longword at
471 * 0x48 or 0x20 (256 bytes of ACPI registers)
472 */
473static void __devinit quirk_vt82c586_acpi(struct pci_dev *dev)
474{
Linus Torvalds1da177e2005-04-16 15:20:36 -0700475 u32 region;
476
Auke Kok651472f2007-08-27 16:18:10 -0700477 if (dev->revision & 0x10) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700478 pci_read_config_dword(dev, 0x48, &region);
479 region &= PCI_BASE_ADDRESS_IO_MASK;
Linus Torvalds6693e742005-10-25 20:40:09 -0700480 quirk_io_region(dev, region, 256, PCI_BRIDGE_RESOURCES, "vt82c586 ACPI");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700481 }
482}
483DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C586_3, quirk_vt82c586_acpi );
484
485/*
486 * VIA VT82C686 ACPI: Three IO region pointed to by (long)words at
487 * 0x48 (256 bytes of ACPI registers)
488 * 0x70 (128 bytes of hardware monitoring register)
489 * 0x90 (16 bytes of SMB registers)
490 */
491static void __devinit quirk_vt82c686_acpi(struct pci_dev *dev)
492{
493 u16 hm;
494 u32 smb;
495
496 quirk_vt82c586_acpi(dev);
497
498 pci_read_config_word(dev, 0x70, &hm);
499 hm &= PCI_BASE_ADDRESS_IO_MASK;
Meelis Roos02f313b2005-10-29 13:31:49 +0300500 quirk_io_region(dev, hm, 128, PCI_BRIDGE_RESOURCES + 1, "vt82c686 HW-mon");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700501
502 pci_read_config_dword(dev, 0x90, &smb);
503 smb &= PCI_BASE_ADDRESS_IO_MASK;
Meelis Roos02f313b2005-10-29 13:31:49 +0300504 quirk_io_region(dev, smb, 16, PCI_BRIDGE_RESOURCES + 2, "vt82c686 SMB");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700505}
506DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686_4, quirk_vt82c686_acpi );
507
Ivan Kokshaysky6d85f292005-08-08 12:55:54 +0400508/*
509 * VIA VT8235 ISA Bridge: Two IO regions pointed to by words at
510 * 0x88 (128 bytes of power management registers)
511 * 0xd0 (16 bytes of SMB registers)
512 */
513static void __devinit quirk_vt8235_acpi(struct pci_dev *dev)
514{
515 u16 pm, smb;
516
517 pci_read_config_word(dev, 0x88, &pm);
518 pm &= PCI_BASE_ADDRESS_IO_MASK;
Linus Torvalds6693e742005-10-25 20:40:09 -0700519 quirk_io_region(dev, pm, 128, PCI_BRIDGE_RESOURCES, "vt8235 PM");
Ivan Kokshaysky6d85f292005-08-08 12:55:54 +0400520
521 pci_read_config_word(dev, 0xd0, &smb);
522 smb &= PCI_BASE_ADDRESS_IO_MASK;
Linus Torvalds6693e742005-10-25 20:40:09 -0700523 quirk_io_region(dev, smb, 16, PCI_BRIDGE_RESOURCES + 1, "vt8235 SMB");
Ivan Kokshaysky6d85f292005-08-08 12:55:54 +0400524}
525DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8235, quirk_vt8235_acpi);
526
Linus Torvalds1da177e2005-04-16 15:20:36 -0700527
528#ifdef CONFIG_X86_IO_APIC
529
530#include <asm/io_apic.h>
531
532/*
533 * VIA 686A/B: If an IO-APIC is active, we need to route all on-chip
534 * devices to the external APIC.
535 *
536 * TODO: When we have device-specific interrupt routers,
537 * this code will go away from quirks.
538 */
Alan Cox1597cac2006-12-04 15:14:45 -0800539static void quirk_via_ioapic(struct pci_dev *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700540{
541 u8 tmp;
542
543 if (nr_ioapics < 1)
544 tmp = 0; /* nothing routed to external APIC */
545 else
546 tmp = 0x1f; /* all known bits (4-0) routed to external APIC */
547
548 printk(KERN_INFO "PCI: %sbling Via external APIC routing\n",
549 tmp == 0 ? "Disa" : "Ena");
550
551 /* Offset 0x58: External APIC IRQ output control */
552 pci_write_config_byte (dev, 0x58, tmp);
553}
554DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686, quirk_via_ioapic );
Alan Cox1597cac2006-12-04 15:14:45 -0800555DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686, quirk_via_ioapic );
Linus Torvalds1da177e2005-04-16 15:20:36 -0700556
557/*
Karsten Wiesea1740912005-09-03 15:56:33 -0700558 * VIA 8237: Some BIOSs don't set the 'Bypass APIC De-Assert Message' Bit.
559 * This leads to doubled level interrupt rates.
560 * Set this bit to get rid of cycle wastage.
561 * Otherwise uncritical.
562 */
Alan Cox1597cac2006-12-04 15:14:45 -0800563static void quirk_via_vt8237_bypass_apic_deassert(struct pci_dev *dev)
Karsten Wiesea1740912005-09-03 15:56:33 -0700564{
565 u8 misc_control2;
566#define BYPASS_APIC_DEASSERT 8
567
568 pci_read_config_byte(dev, 0x5B, &misc_control2);
569 if (!(misc_control2 & BYPASS_APIC_DEASSERT)) {
570 printk(KERN_INFO "PCI: Bypassing VIA 8237 APIC De-Assert Message\n");
571 pci_write_config_byte(dev, 0x5B, misc_control2|BYPASS_APIC_DEASSERT);
572 }
573}
574DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, quirk_via_vt8237_bypass_apic_deassert);
Alan Cox1597cac2006-12-04 15:14:45 -0800575DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, quirk_via_vt8237_bypass_apic_deassert);
Karsten Wiesea1740912005-09-03 15:56:33 -0700576
577/*
Linus Torvalds1da177e2005-04-16 15:20:36 -0700578 * The AMD io apic can hang the box when an apic irq is masked.
579 * We check all revs >= B0 (yet not in the pre production!) as the bug
580 * is currently marked NoFix
581 *
582 * We have multiple reports of hangs with this chipset that went away with
Alan Cox236561e2006-09-30 23:27:03 -0700583 * noapic specified. For the moment we assume it's the erratum. We may be wrong
Linus Torvalds1da177e2005-04-16 15:20:36 -0700584 * of course. However the advice is demonstrably good even if so..
585 */
586static void __devinit quirk_amd_ioapic(struct pci_dev *dev)
587{
Auke Kok44c10132007-06-08 15:46:36 -0700588 if (dev->revision >= 0x02) {
Alan Cox236561e2006-09-30 23:27:03 -0700589 printk(KERN_WARNING "I/O APIC: AMD Erratum #22 may be present. In the event of instability try\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700590 printk(KERN_WARNING " : booting with the \"noapic\" option.\n");
591 }
592}
593DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_VIPER_7410, quirk_amd_ioapic );
594
595static void __init quirk_ioapic_rmw(struct pci_dev *dev)
596{
597 if (dev->devfn == 0 && dev->bus->number == 0)
598 sis_apic_bug = 1;
599}
600DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SI, PCI_ANY_ID, quirk_ioapic_rmw );
601
Linus Torvalds1da177e2005-04-16 15:20:36 -0700602#define AMD8131_revA0 0x01
603#define AMD8131_revB0 0x11
604#define AMD8131_MISC 0x40
605#define AMD8131_NIOAMODE_BIT 0
Alan Cox1597cac2006-12-04 15:14:45 -0800606static void quirk_amd_8131_ioapic(struct pci_dev *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700607{
Auke Kok44c10132007-06-08 15:46:36 -0700608 unsigned char tmp;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700609
Linus Torvalds1da177e2005-04-16 15:20:36 -0700610 if (nr_ioapics == 0)
611 return;
612
Auke Kok44c10132007-06-08 15:46:36 -0700613 if (dev->revision == AMD8131_revA0 || dev->revision == AMD8131_revB0) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700614 printk(KERN_INFO "Fixing up AMD8131 IOAPIC mode\n");
615 pci_read_config_byte( dev, AMD8131_MISC, &tmp);
616 tmp &= ~(1 << AMD8131_NIOAMODE_BIT);
617 pci_write_config_byte( dev, AMD8131_MISC, tmp);
618 }
619}
John W. Linville5da594b2006-03-20 14:33:56 -0500620DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8131_BRIDGE, quirk_amd_8131_ioapic);
Alan Cox1597cac2006-12-04 15:14:45 -0800621DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8131_BRIDGE, quirk_amd_8131_ioapic);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700622#endif /* CONFIG_X86_IO_APIC */
623
Peter Orubad556ad42007-05-15 13:59:13 +0200624/*
625 * Some settings of MMRBC can lead to data corruption so block changes.
626 * See AMD 8131 HyperTransport PCI-X Tunnel Revision Guide
627 */
628static void __init quirk_amd_8131_mmrbc(struct pci_dev *dev)
629{
Auke Kokaa288d42007-08-27 16:17:47 -0700630 if (dev->subordinate && dev->revision <= 0x12) {
Andrew Mortonb7b095c2007-07-09 11:55:50 -0700631 printk(KERN_INFO "AMD8131 rev %x detected, disabling PCI-X "
Auke Kokaa288d42007-08-27 16:17:47 -0700632 "MMRBC\n", dev->revision);
Peter Orubad556ad42007-05-15 13:59:13 +0200633 dev->subordinate->bus_flags |= PCI_BUS_FLAGS_NO_MMRBC;
634 }
635}
636DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8131_BRIDGE, quirk_amd_8131_mmrbc);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700637
638/*
Linus Torvalds1da177e2005-04-16 15:20:36 -0700639 * FIXME: it is questionable that quirk_via_acpi
640 * is needed. It shows up as an ISA bridge, and does not
641 * support the PCI_INTERRUPT_LINE register at all. Therefore
642 * it seems like setting the pci_dev's 'irq' to the
643 * value of the ACPI SCI interrupt is only done for convenience.
644 * -jgarzik
645 */
646static void __devinit quirk_via_acpi(struct pci_dev *d)
647{
648 /*
649 * VIA ACPI device: SCI IRQ line in PCI config byte 0x42
650 */
651 u8 irq;
652 pci_read_config_byte(d, 0x42, &irq);
653 irq &= 0xf;
654 if (irq && (irq != 2))
655 d->irq = irq;
656}
657DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C586_3, quirk_via_acpi );
658DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686_4, quirk_via_acpi );
659
Daniel Drake09d60292006-09-25 16:52:19 -0700660
661/*
Alan Cox1597cac2006-12-04 15:14:45 -0800662 * VIA bridges which have VLink
Daniel Drake09d60292006-09-25 16:52:19 -0700663 */
Alan Cox1597cac2006-12-04 15:14:45 -0800664
Jean Delvarec06bb5d2007-01-30 14:36:09 -0800665static int via_vlink_dev_lo = -1, via_vlink_dev_hi = 18;
666
667static void quirk_via_bridge(struct pci_dev *dev)
668{
669 /* See what bridge we have and find the device ranges */
670 switch (dev->device) {
671 case PCI_DEVICE_ID_VIA_82C686:
Jean Delvarecb7468e2007-01-31 23:48:12 -0800672 /* The VT82C686 is special, it attaches to PCI and can have
673 any device number. All its subdevices are functions of
674 that single device. */
675 via_vlink_dev_lo = PCI_SLOT(dev->devfn);
676 via_vlink_dev_hi = PCI_SLOT(dev->devfn);
Jean Delvarec06bb5d2007-01-30 14:36:09 -0800677 break;
678 case PCI_DEVICE_ID_VIA_8237:
679 case PCI_DEVICE_ID_VIA_8237A:
680 via_vlink_dev_lo = 15;
681 break;
682 case PCI_DEVICE_ID_VIA_8235:
683 via_vlink_dev_lo = 16;
684 break;
685 case PCI_DEVICE_ID_VIA_8231:
686 case PCI_DEVICE_ID_VIA_8233_0:
687 case PCI_DEVICE_ID_VIA_8233A:
688 case PCI_DEVICE_ID_VIA_8233C_0:
689 via_vlink_dev_lo = 17;
690 break;
691 }
692}
693DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686, quirk_via_bridge);
694DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8231, quirk_via_bridge);
695DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8233_0, quirk_via_bridge);
696DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8233A, quirk_via_bridge);
697DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8233C_0, quirk_via_bridge);
698DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8235, quirk_via_bridge);
699DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, quirk_via_bridge);
700DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237A, quirk_via_bridge);
Daniel Drake09d60292006-09-25 16:52:19 -0700701
Alan Cox1597cac2006-12-04 15:14:45 -0800702/**
703 * quirk_via_vlink - VIA VLink IRQ number update
704 * @dev: PCI device
705 *
706 * If the device we are dealing with is on a PIC IRQ we need to
707 * ensure that the IRQ line register which usually is not relevant
708 * for PCI cards, is actually written so that interrupts get sent
Jean Delvarec06bb5d2007-01-30 14:36:09 -0800709 * to the right place.
710 * We only do this on systems where a VIA south bridge was detected,
711 * and only for VIA devices on the motherboard (see quirk_via_bridge
712 * above).
Alan Cox1597cac2006-12-04 15:14:45 -0800713 */
714
715static void quirk_via_vlink(struct pci_dev *dev)
Len Brown25be5e62005-05-27 04:21:50 -0400716{
717 u8 irq, new_irq;
718
Jean Delvarec06bb5d2007-01-30 14:36:09 -0800719 /* Check if we have VLink at all */
720 if (via_vlink_dev_lo == -1)
Daniel Drake09d60292006-09-25 16:52:19 -0700721 return;
722
723 new_irq = dev->irq;
724
725 /* Don't quirk interrupts outside the legacy IRQ range */
726 if (!new_irq || new_irq > 15)
727 return;
728
Alan Cox1597cac2006-12-04 15:14:45 -0800729 /* Internal device ? */
Jean Delvarec06bb5d2007-01-30 14:36:09 -0800730 if (dev->bus->number != 0 || PCI_SLOT(dev->devfn) > via_vlink_dev_hi ||
731 PCI_SLOT(dev->devfn) < via_vlink_dev_lo)
Alan Cox1597cac2006-12-04 15:14:45 -0800732 return;
733
734 /* This is an internal VLink device on a PIC interrupt. The BIOS
735 ought to have set this but may not have, so we redo it */
736
Len Brown25be5e62005-05-27 04:21:50 -0400737 pci_read_config_byte(dev, PCI_INTERRUPT_LINE, &irq);
738 if (new_irq != irq) {
Alan Cox1597cac2006-12-04 15:14:45 -0800739 printk(KERN_INFO "PCI: VIA VLink IRQ fixup for %s, from %d to %d\n",
Len Brown25be5e62005-05-27 04:21:50 -0400740 pci_name(dev), irq, new_irq);
741 udelay(15); /* unknown if delay really needed */
742 pci_write_config_byte(dev, PCI_INTERRUPT_LINE, new_irq);
743 }
744}
Alan Cox1597cac2006-12-04 15:14:45 -0800745DECLARE_PCI_FIXUP_ENABLE(PCI_VENDOR_ID_VIA, PCI_ANY_ID, quirk_via_vlink);
Len Brown25be5e62005-05-27 04:21:50 -0400746
Linus Torvalds1da177e2005-04-16 15:20:36 -0700747/*
Linus Torvalds1da177e2005-04-16 15:20:36 -0700748 * VIA VT82C598 has its device ID settable and many BIOSes
749 * set it to the ID of VT82C597 for backward compatibility.
750 * We need to switch it off to be able to recognize the real
751 * type of the chip.
752 */
753static void __devinit quirk_vt82c598_id(struct pci_dev *dev)
754{
755 pci_write_config_byte(dev, 0xfc, 0);
756 pci_read_config_word(dev, PCI_DEVICE_ID, &dev->device);
757}
758DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C597_0, quirk_vt82c598_id );
759
760/*
761 * CardBus controllers have a legacy base address that enables them
762 * to respond as i82365 pcmcia controllers. We don't want them to
763 * do this even if the Linux CardBus driver is not loaded, because
764 * the Linux i82365 driver does not (and should not) handle CardBus.
765 */
Alan Cox1597cac2006-12-04 15:14:45 -0800766static void quirk_cardbus_legacy(struct pci_dev *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700767{
768 if ((PCI_CLASS_BRIDGE_CARDBUS << 8) ^ dev->class)
769 return;
770 pci_write_config_dword(dev, PCI_CB_LEGACY_MODE_BASE, 0);
771}
772DECLARE_PCI_FIXUP_FINAL(PCI_ANY_ID, PCI_ANY_ID, quirk_cardbus_legacy);
Alan Cox1597cac2006-12-04 15:14:45 -0800773DECLARE_PCI_FIXUP_RESUME(PCI_ANY_ID, PCI_ANY_ID, quirk_cardbus_legacy);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700774
775/*
776 * Following the PCI ordering rules is optional on the AMD762. I'm not
777 * sure what the designers were smoking but let's not inhale...
778 *
779 * To be fair to AMD, it follows the spec by default, its BIOS people
780 * who turn it off!
781 */
Alan Cox1597cac2006-12-04 15:14:45 -0800782static void quirk_amd_ordering(struct pci_dev *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700783{
784 u32 pcic;
785 pci_read_config_dword(dev, 0x4C, &pcic);
786 if ((pcic&6)!=6) {
787 pcic |= 6;
788 printk(KERN_WARNING "BIOS failed to enable PCI standards compliance, fixing this error.\n");
789 pci_write_config_dword(dev, 0x4C, pcic);
790 pci_read_config_dword(dev, 0x84, &pcic);
791 pcic |= (1<<23); /* Required in this mode */
792 pci_write_config_dword(dev, 0x84, pcic);
793 }
794}
795DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_FE_GATE_700C, quirk_amd_ordering );
Alan Cox1597cac2006-12-04 15:14:45 -0800796DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_FE_GATE_700C, quirk_amd_ordering );
Linus Torvalds1da177e2005-04-16 15:20:36 -0700797
798/*
799 * DreamWorks provided workaround for Dunord I-3000 problem
800 *
801 * This card decodes and responds to addresses not apparently
802 * assigned to it. We force a larger allocation to ensure that
803 * nothing gets put too close to it.
804 */
805static void __devinit quirk_dunord ( struct pci_dev * dev )
806{
807 struct resource *r = &dev->resource [1];
808 r->start = 0;
809 r->end = 0xffffff;
810}
811DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_DUNORD, PCI_DEVICE_ID_DUNORD_I3000, quirk_dunord );
812
813/*
814 * i82380FB mobile docking controller: its PCI-to-PCI bridge
815 * is subtractive decoding (transparent), and does indicate this
816 * in the ProgIf. Unfortunately, the ProgIf value is wrong - 0x80
817 * instead of 0x01.
818 */
819static void __devinit quirk_transparent_bridge(struct pci_dev *dev)
820{
821 dev->transparent = 1;
822}
823DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82380FB, quirk_transparent_bridge );
824DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_TOSHIBA, 0x605, quirk_transparent_bridge );
825
826/*
827 * Common misconfiguration of the MediaGX/Geode PCI master that will
828 * reduce PCI bandwidth from 70MB/s to 25MB/s. See the GXM/GXLV/GX1
829 * datasheets found at http://www.national.com/ds/GX for info on what
830 * these bits do. <christer@weinigel.se>
831 */
Alan Cox1597cac2006-12-04 15:14:45 -0800832static void quirk_mediagx_master(struct pci_dev *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700833{
834 u8 reg;
835 pci_read_config_byte(dev, 0x41, &reg);
836 if (reg & 2) {
837 reg &= ~2;
838 printk(KERN_INFO "PCI: Fixup for MediaGX/Geode Slave Disconnect Boundary (0x41=0x%02x)\n", reg);
839 pci_write_config_byte(dev, 0x41, reg);
840 }
841}
842DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CYRIX, PCI_DEVICE_ID_CYRIX_PCI_MASTER, quirk_mediagx_master );
Alan Cox1597cac2006-12-04 15:14:45 -0800843DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_CYRIX, PCI_DEVICE_ID_CYRIX_PCI_MASTER, quirk_mediagx_master );
Linus Torvalds1da177e2005-04-16 15:20:36 -0700844
845/*
Linus Torvalds1da177e2005-04-16 15:20:36 -0700846 * Ensure C0 rev restreaming is off. This is normally done by
847 * the BIOS but in the odd case it is not the results are corruption
848 * hence the presence of a Linux check
849 */
Alan Cox1597cac2006-12-04 15:14:45 -0800850static void quirk_disable_pxb(struct pci_dev *pdev)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700851{
852 u16 config;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700853
Auke Kok44c10132007-06-08 15:46:36 -0700854 if (pdev->revision != 0x04) /* Only C0 requires this */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700855 return;
856 pci_read_config_word(pdev, 0x40, &config);
857 if (config & (1<<6)) {
858 config &= ~(1<<6);
859 pci_write_config_word(pdev, 0x40, config);
860 printk(KERN_INFO "PCI: C0 revision 450NX. Disabling PCI restreaming.\n");
861 }
862}
863DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82454NX, quirk_disable_pxb );
Alan Cox1597cac2006-12-04 15:14:45 -0800864DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82454NX, quirk_disable_pxb );
Linus Torvalds1da177e2005-04-16 15:20:36 -0700865
Linus Torvalds1da177e2005-04-16 15:20:36 -0700866
Conke Huab174432006-12-19 13:11:37 -0800867static void __devinit quirk_sb600_sata(struct pci_dev *pdev)
868{
869 /* set sb600 sata to ahci mode */
870 if ((pdev->class >> 8) == PCI_CLASS_STORAGE_IDE) {
871 u8 tmp;
872
873 pci_read_config_byte(pdev, 0x40, &tmp);
874 pci_write_config_byte(pdev, 0x40, tmp|1);
875 pci_write_config_byte(pdev, 0x9, 1);
876 pci_write_config_byte(pdev, 0xa, 6);
877 pci_write_config_byte(pdev, 0x40, tmp);
878
Conke Huc9f89472007-01-09 05:32:51 -0500879 pdev->class = PCI_CLASS_STORAGE_SATA_AHCI;
Conke Huab174432006-12-19 13:11:37 -0800880 }
881}
882DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP600_SATA, quirk_sb600_sata);
Henry Su82377712007-05-10 22:48:50 -0700883DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP700_SATA, quirk_sb600_sata);
Conke Huab174432006-12-19 13:11:37 -0800884
Linus Torvalds1da177e2005-04-16 15:20:36 -0700885/*
886 * Serverworks CSB5 IDE does not fully support native mode
887 */
888static void __devinit quirk_svwks_csb5ide(struct pci_dev *pdev)
889{
890 u8 prog;
891 pci_read_config_byte(pdev, PCI_CLASS_PROG, &prog);
892 if (prog & 5) {
893 prog &= ~5;
894 pdev->class &= ~5;
895 pci_write_config_byte(pdev, PCI_CLASS_PROG, prog);
Alan Cox368c73d2006-10-04 00:41:26 +0100896 /* PCI layer will sort out resources */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700897 }
898}
Alan Cox368c73d2006-10-04 00:41:26 +0100899DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_CSB5IDE, quirk_svwks_csb5ide );
Linus Torvalds1da177e2005-04-16 15:20:36 -0700900
901/*
902 * Intel 82801CAM ICH3-M datasheet says IDE modes must be the same
903 */
904static void __init quirk_ide_samemode(struct pci_dev *pdev)
905{
906 u8 prog;
907
908 pci_read_config_byte(pdev, PCI_CLASS_PROG, &prog);
909
910 if (((prog & 1) && !(prog & 4)) || ((prog & 4) && !(prog & 1))) {
911 printk(KERN_INFO "PCI: IDE mode mismatch; forcing legacy mode\n");
912 prog &= ~5;
913 pdev->class &= ~5;
914 pci_write_config_byte(pdev, PCI_CLASS_PROG, prog);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700915 }
916}
Alan Cox368c73d2006-10-04 00:41:26 +0100917DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_10, quirk_ide_samemode);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700918
919/* This was originally an Alpha specific thing, but it really fits here.
920 * The i82375 PCI/EISA bridge appears as non-classified. Fix that.
921 */
922static void __init quirk_eisa_bridge(struct pci_dev *dev)
923{
924 dev->class = PCI_CLASS_BRIDGE_EISA << 8;
925}
926DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82375, quirk_eisa_bridge );
927
928/*
Johannes Goecke7daa0c42006-04-20 02:43:17 -0700929 * On the MSI-K8T-Neo2Fir Board, the internal Soundcard is disabled
930 * when a PCI-Soundcard is added. The BIOS only gives Options
931 * "Disabled" and "AUTO". This Quirk Sets the corresponding
932 * Register-Value to enable the Soundcard.
Chris Wedgwoodbd91fde2006-06-05 00:13:21 -0700933 *
934 * FIXME: Presently this quirk will run on anything that has an 8237
935 * which isn't correct, we need to check DMI tables or something in
936 * order to make sure it only runs on the MSI-K8T-Neo2Fir. Because it
937 * runs everywhere at present we suppress the printk output in most
938 * irrelevant cases.
Johannes Goecke7daa0c42006-04-20 02:43:17 -0700939 */
Alan Cox1597cac2006-12-04 15:14:45 -0800940static void k8t_sound_hostbridge(struct pci_dev *dev)
Johannes Goecke7daa0c42006-04-20 02:43:17 -0700941{
942 unsigned char val;
943
Johannes Goecke7daa0c42006-04-20 02:43:17 -0700944 pci_read_config_byte(dev, 0x50, &val);
Jean Delvare18166c12007-08-19 12:03:07 +0200945 if (val == 0xc8) {
Chris Wedgwoodbd91fde2006-06-05 00:13:21 -0700946 /* Assume it's probably a MSI-K8T-Neo2Fir */
947 printk(KERN_INFO "PCI: MSI-K8T-Neo2Fir, attempting to turn soundcard ON\n");
Johannes Goecke7daa0c42006-04-20 02:43:17 -0700948 pci_write_config_byte(dev, 0x50, val & (~0x40));
949
950 /* Verify the Change for Status output */
951 pci_read_config_byte(dev, 0x50, &val);
952 if (val & 0x40)
Chris Wedgwoodbd91fde2006-06-05 00:13:21 -0700953 printk(KERN_INFO "PCI: MSI-K8T-Neo2Fir, soundcard still off\n");
Johannes Goecke7daa0c42006-04-20 02:43:17 -0700954 else
Chris Wedgwoodbd91fde2006-06-05 00:13:21 -0700955 printk(KERN_INFO "PCI: MSI-K8T-Neo2Fir, soundcard on\n");
Johannes Goecke7daa0c42006-04-20 02:43:17 -0700956 }
Johannes Goecke7daa0c42006-04-20 02:43:17 -0700957}
958DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, k8t_sound_hostbridge);
Alan Cox1597cac2006-12-04 15:14:45 -0800959DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, k8t_sound_hostbridge);
Johannes Goecke7daa0c42006-04-20 02:43:17 -0700960
961/*
Linus Torvalds1da177e2005-04-16 15:20:36 -0700962 * On ASUS P4B boards, the SMBus PCI Device within the ICH2/4 southbridge
963 * is not activated. The myth is that Asus said that they do not want the
964 * users to be irritated by just another PCI Device in the Win98 device
965 * manager. (see the file prog/hotplug/README.p4b in the lm_sensors
966 * package 2.7.0 for details)
967 *
968 * The SMBus PCI Device can be activated by setting a bit in the ICH LPC
969 * bridge. Unfortunately, this device has no subvendor/subdevice ID. So it
gw.kernel@tnode.comd7698ed2007-08-23 21:22:04 +0200970 * becomes necessary to do this tweak in two steps -- the chosen trigger
971 * is either the Host bridge (preferred) or on-board VGA controller.
Jean Delvare9208ee82007-03-24 16:56:44 +0100972 *
973 * Note that we used to unhide the SMBus that way on Toshiba laptops
974 * (Satellite A40 and Tecra M2) but then found that the thermal management
975 * was done by SMM code, which could cause unsynchronized concurrent
976 * accesses to the SMBus registers, with potentially bad effects. Thus you
977 * should be very careful when adding new entries: if SMM is accessing the
978 * Intel SMBus, this is a very good reason to leave it hidden.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700979 */
Vivek Goyal9d24a812007-01-11 01:52:44 +0100980static int asus_hides_smbus;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700981
982static void __init asus_hides_smbus_hostbridge(struct pci_dev *dev)
983{
984 if (unlikely(dev->subsystem_vendor == PCI_VENDOR_ID_ASUSTEK)) {
985 if (dev->device == PCI_DEVICE_ID_INTEL_82845_HB)
986 switch(dev->subsystem_device) {
Jean Delvarea00db372005-06-29 17:04:06 +0200987 case 0x8025: /* P4B-LX */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700988 case 0x8070: /* P4B */
989 case 0x8088: /* P4B533 */
990 case 0x1626: /* L3C notebook */
991 asus_hides_smbus = 1;
992 }
Jean Delvare2f2d39d2007-01-05 11:23:15 +0100993 else if (dev->device == PCI_DEVICE_ID_INTEL_82845G_HB)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700994 switch(dev->subsystem_device) {
995 case 0x80b1: /* P4GE-V */
996 case 0x80b2: /* P4PE */
997 case 0x8093: /* P4B533-V */
998 asus_hides_smbus = 1;
999 }
Jean Delvare2f2d39d2007-01-05 11:23:15 +01001000 else if (dev->device == PCI_DEVICE_ID_INTEL_82850_HB)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001001 switch(dev->subsystem_device) {
1002 case 0x8030: /* P4T533 */
1003 asus_hides_smbus = 1;
1004 }
Jean Delvare2f2d39d2007-01-05 11:23:15 +01001005 else if (dev->device == PCI_DEVICE_ID_INTEL_7205_0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001006 switch (dev->subsystem_device) {
1007 case 0x8070: /* P4G8X Deluxe */
1008 asus_hides_smbus = 1;
1009 }
Jean Delvare2f2d39d2007-01-05 11:23:15 +01001010 else if (dev->device == PCI_DEVICE_ID_INTEL_E7501_MCH)
Jean Delvare321311a2006-07-31 08:53:15 +02001011 switch (dev->subsystem_device) {
1012 case 0x80c9: /* PU-DLS */
1013 asus_hides_smbus = 1;
1014 }
Jean Delvare2f2d39d2007-01-05 11:23:15 +01001015 else if (dev->device == PCI_DEVICE_ID_INTEL_82855GM_HB)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001016 switch (dev->subsystem_device) {
1017 case 0x1751: /* M2N notebook */
1018 case 0x1821: /* M5N notebook */
1019 asus_hides_smbus = 1;
1020 }
Jean Delvare2f2d39d2007-01-05 11:23:15 +01001021 else if (dev->device == PCI_DEVICE_ID_INTEL_82855PM_HB)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001022 switch (dev->subsystem_device) {
1023 case 0x184b: /* W1N notebook */
1024 case 0x186a: /* M6Ne notebook */
1025 asus_hides_smbus = 1;
1026 }
Jean Delvare2f2d39d2007-01-05 11:23:15 +01001027 else if (dev->device == PCI_DEVICE_ID_INTEL_82865_HB)
Jean Delvare2e457852007-01-05 09:17:56 +01001028 switch (dev->subsystem_device) {
1029 case 0x80f2: /* P4P800-X */
1030 asus_hides_smbus = 1;
1031 }
Jean Delvare2f2d39d2007-01-05 11:23:15 +01001032 else if (dev->device == PCI_DEVICE_ID_INTEL_82915GM_HB)
R.Marek@sh.cvut.czacc06632005-09-29 08:35:41 +00001033 switch (dev->subsystem_device) {
1034 case 0x1882: /* M6V notebook */
Jean Delvare2d1e1c72006-04-01 16:46:35 +02001035 case 0x1977: /* A6VA notebook */
R.Marek@sh.cvut.czacc06632005-09-29 08:35:41 +00001036 asus_hides_smbus = 1;
1037 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001038 } else if (unlikely(dev->subsystem_vendor == PCI_VENDOR_ID_HP)) {
1039 if (dev->device == PCI_DEVICE_ID_INTEL_82855PM_HB)
1040 switch(dev->subsystem_device) {
1041 case 0x088C: /* HP Compaq nc8000 */
1042 case 0x0890: /* HP Compaq nc6000 */
1043 asus_hides_smbus = 1;
1044 }
Jean Delvare2f2d39d2007-01-05 11:23:15 +01001045 else if (dev->device == PCI_DEVICE_ID_INTEL_82865_HB)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001046 switch (dev->subsystem_device) {
1047 case 0x12bc: /* HP D330L */
Jean Delvaree3b1bd52005-09-21 22:26:31 +02001048 case 0x12bd: /* HP D530 */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001049 asus_hides_smbus = 1;
1050 }
Jean Delvare2f2d39d2007-01-05 11:23:15 +01001051 else if (dev->device == PCI_DEVICE_ID_INTEL_82915GM_HB)
tomek@koprowski.org3c0a6542006-02-19 18:03:24 +01001052 switch (dev->subsystem_device) {
1053 case 0x099c: /* HP Compaq nx6110 */
1054 asus_hides_smbus = 1;
1055 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001056 } else if (unlikely(dev->subsystem_vendor == PCI_VENDOR_ID_SAMSUNG)) {
1057 if (dev->device == PCI_DEVICE_ID_INTEL_82855PM_HB)
1058 switch(dev->subsystem_device) {
1059 case 0xC00C: /* Samsung P35 notebook */
1060 asus_hides_smbus = 1;
1061 }
Rumen Ivanov Zarevc87f8832005-09-06 13:39:32 -07001062 } else if (unlikely(dev->subsystem_vendor == PCI_VENDOR_ID_COMPAQ)) {
1063 if (dev->device == PCI_DEVICE_ID_INTEL_82855PM_HB)
1064 switch(dev->subsystem_device) {
1065 case 0x0058: /* Compaq Evo N620c */
1066 asus_hides_smbus = 1;
1067 }
gw.kernel@tnode.comd7698ed2007-08-23 21:22:04 +02001068 else if (dev->device == PCI_DEVICE_ID_INTEL_82810_IG3)
1069 switch(dev->subsystem_device) {
1070 case 0xB16C: /* Compaq Deskpro EP 401963-001 (PCA# 010174) */
1071 /* Motherboard doesn't have Host bridge
1072 * subvendor/subdevice IDs, therefore checking
1073 * its on-board VGA controller */
1074 asus_hides_smbus = 1;
1075 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001076 }
1077}
1078DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82845_HB, asus_hides_smbus_hostbridge );
1079DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82845G_HB, asus_hides_smbus_hostbridge );
1080DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82850_HB, asus_hides_smbus_hostbridge );
1081DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82865_HB, asus_hides_smbus_hostbridge );
1082DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_7205_0, asus_hides_smbus_hostbridge );
Jean Delvare321311a2006-07-31 08:53:15 +02001083DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7501_MCH, asus_hides_smbus_hostbridge );
Linus Torvalds1da177e2005-04-16 15:20:36 -07001084DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82855PM_HB, asus_hides_smbus_hostbridge );
1085DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82855GM_HB, asus_hides_smbus_hostbridge );
R.Marek@sh.cvut.czacc06632005-09-29 08:35:41 +00001086DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82915GM_HB, asus_hides_smbus_hostbridge );
Linus Torvalds1da177e2005-04-16 15:20:36 -07001087
gw.kernel@tnode.comd7698ed2007-08-23 21:22:04 +02001088DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82810_IG3, asus_hides_smbus_hostbridge );
1089
Alan Cox1597cac2006-12-04 15:14:45 -08001090static void asus_hides_smbus_lpc(struct pci_dev *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001091{
1092 u16 val;
1093
1094 if (likely(!asus_hides_smbus))
1095 return;
1096
1097 pci_read_config_word(dev, 0xF2, &val);
1098 if (val & 0x8) {
1099 pci_write_config_word(dev, 0xF2, val & (~0x8));
1100 pci_read_config_word(dev, 0xF2, &val);
1101 if (val & 0x8)
1102 printk(KERN_INFO "PCI: i801 SMBus device continues to play 'hide and seek'! 0x%x\n", val);
1103 else
1104 printk(KERN_INFO "PCI: Enabled i801 SMBus device\n");
1105 }
1106}
gw.kernel@tnode.comd7698ed2007-08-23 21:22:04 +02001107DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801AA_0, asus_hides_smbus_lpc );
Linus Torvalds1da177e2005-04-16 15:20:36 -07001108DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_0, asus_hides_smbus_lpc );
1109DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_0, asus_hides_smbus_lpc );
Jean Delvare321311a2006-07-31 08:53:15 +02001110DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_0, asus_hides_smbus_lpc );
Linus Torvalds1da177e2005-04-16 15:20:36 -07001111DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_12, asus_hides_smbus_lpc );
1112DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_12, asus_hides_smbus_lpc );
1113DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801EB_0, asus_hides_smbus_lpc );
gw.kernel@tnode.comd7698ed2007-08-23 21:22:04 +02001114DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801AA_0, asus_hides_smbus_lpc );
Alan Cox1597cac2006-12-04 15:14:45 -08001115DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_0, asus_hides_smbus_lpc );
1116DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_0, asus_hides_smbus_lpc );
1117DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_0, asus_hides_smbus_lpc );
1118DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_12, asus_hides_smbus_lpc );
1119DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_12, asus_hides_smbus_lpc );
1120DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801EB_0, asus_hides_smbus_lpc );
Linus Torvalds1da177e2005-04-16 15:20:36 -07001121
Alan Cox1597cac2006-12-04 15:14:45 -08001122static void asus_hides_smbus_lpc_ich6(struct pci_dev *dev)
R.Marek@sh.cvut.czacc06632005-09-29 08:35:41 +00001123{
1124 u32 val, rcba;
1125 void __iomem *base;
1126
1127 if (likely(!asus_hides_smbus))
1128 return;
1129 pci_read_config_dword(dev, 0xF0, &rcba);
1130 base = ioremap_nocache(rcba & 0xFFFFC000, 0x4000); /* use bits 31:14, 16 kB aligned */
1131 if (base == NULL) return;
1132 val=readl(base + 0x3418); /* read the Function Disable register, dword mode only */
1133 writel(val & 0xFFFFFFF7, base + 0x3418); /* enable the SMBus device */
1134 iounmap(base);
1135 printk(KERN_INFO "PCI: Enabled ICH6/i801 SMBus device\n");
1136}
1137DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1, asus_hides_smbus_lpc_ich6 );
Alan Cox1597cac2006-12-04 15:14:45 -08001138DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1, asus_hides_smbus_lpc_ich6 );
Carl-Daniel Hailfingerce007ea2006-05-15 09:44:33 -07001139
Linus Torvalds1da177e2005-04-16 15:20:36 -07001140/*
1141 * SiS 96x south bridge: BIOS typically hides SMBus device...
1142 */
Alan Cox1597cac2006-12-04 15:14:45 -08001143static void quirk_sis_96x_smbus(struct pci_dev *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001144{
1145 u8 val = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001146 pci_read_config_byte(dev, 0x77, &val);
Mark M. Hoffman2f5c33b2007-01-08 22:11:29 -05001147 if (val & 0x10) {
1148 printk(KERN_INFO "Enabling SiS 96x SMBus.\n");
1149 pci_write_config_byte(dev, 0x77, val & ~0x10);
1150 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001151}
Adrian Bunkc30ca1d2006-12-19 05:13:15 +01001152DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_961, quirk_sis_96x_smbus );
1153DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_962, quirk_sis_96x_smbus );
1154DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_963, quirk_sis_96x_smbus );
1155DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_LPC, quirk_sis_96x_smbus );
1156DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_961, quirk_sis_96x_smbus );
1157DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_962, quirk_sis_96x_smbus );
1158DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_963, quirk_sis_96x_smbus );
1159DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_LPC, quirk_sis_96x_smbus );
Linus Torvalds1da177e2005-04-16 15:20:36 -07001160
Linus Torvalds1da177e2005-04-16 15:20:36 -07001161/*
1162 * ... This is further complicated by the fact that some SiS96x south
1163 * bridges pretend to be 85C503/5513 instead. In that case see if we
1164 * spotted a compatible north bridge to make sure.
1165 * (pci_find_device doesn't work yet)
1166 *
1167 * We can also enable the sis96x bit in the discovery register..
1168 */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001169#define SIS_DETECT_REGISTER 0x40
1170
Alan Cox1597cac2006-12-04 15:14:45 -08001171static void quirk_sis_503(struct pci_dev *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001172{
1173 u8 reg;
1174 u16 devid;
1175
1176 pci_read_config_byte(dev, SIS_DETECT_REGISTER, &reg);
1177 pci_write_config_byte(dev, SIS_DETECT_REGISTER, reg | (1 << 6));
1178 pci_read_config_word(dev, PCI_DEVICE_ID, &devid);
1179 if (((devid & 0xfff0) != 0x0960) && (devid != 0x0018)) {
1180 pci_write_config_byte(dev, SIS_DETECT_REGISTER, reg);
1181 return;
1182 }
1183
Linus Torvalds1da177e2005-04-16 15:20:36 -07001184 /*
Mark M. Hoffman2f5c33b2007-01-08 22:11:29 -05001185 * Ok, it now shows up as a 96x.. run the 96x quirk by
1186 * hand in case it has already been processed.
1187 * (depends on link order, which is apparently not guaranteed)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001188 */
1189 dev->device = devid;
Mark M. Hoffman2f5c33b2007-01-08 22:11:29 -05001190 quirk_sis_96x_smbus(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001191}
Adrian Bunkc30ca1d2006-12-19 05:13:15 +01001192DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_503, quirk_sis_503 );
1193DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_503, quirk_sis_503 );
Linus Torvalds1da177e2005-04-16 15:20:36 -07001194
Linus Torvalds1da177e2005-04-16 15:20:36 -07001195
Bauke Jan Doumae5548e92006-02-28 21:44:36 +01001196/*
1197 * On ASUS A8V and A8V Deluxe boards, the onboard AC97 audio controller
1198 * and MC97 modem controller are disabled when a second PCI soundcard is
1199 * present. This patch, tweaking the VT8237 ISA bridge, enables them.
1200 * -- bjd
1201 */
Alan Cox1597cac2006-12-04 15:14:45 -08001202static void asus_hides_ac97_lpc(struct pci_dev *dev)
Bauke Jan Doumae5548e92006-02-28 21:44:36 +01001203{
1204 u8 val;
1205 int asus_hides_ac97 = 0;
1206
1207 if (likely(dev->subsystem_vendor == PCI_VENDOR_ID_ASUSTEK)) {
1208 if (dev->device == PCI_DEVICE_ID_VIA_8237)
1209 asus_hides_ac97 = 1;
1210 }
1211
1212 if (!asus_hides_ac97)
1213 return;
1214
1215 pci_read_config_byte(dev, 0x50, &val);
1216 if (val & 0xc0) {
1217 pci_write_config_byte(dev, 0x50, val & (~0xc0));
1218 pci_read_config_byte(dev, 0x50, &val);
1219 if (val & 0xc0)
1220 printk(KERN_INFO "PCI: onboard AC97/MC97 devices continue to play 'hide and seek'! 0x%x\n", val);
1221 else
1222 printk(KERN_INFO "PCI: enabled onboard AC97/MC97 devices\n");
1223 }
1224}
1225DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, asus_hides_ac97_lpc );
Alan Cox1597cac2006-12-04 15:14:45 -08001226DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, asus_hides_ac97_lpc );
1227
Tejun Heo77967052006-08-19 03:54:39 +09001228#if defined(CONFIG_ATA) || defined(CONFIG_ATA_MODULE)
Alan Cox15e0c692006-07-12 15:05:41 +01001229
1230/*
1231 * If we are using libata we can drive this chip properly but must
1232 * do this early on to make the additional device appear during
1233 * the PCI scanning.
1234 */
Tejun Heo5ee2ae72007-02-26 20:16:13 +09001235static void quirk_jmicron_ata(struct pci_dev *pdev)
Alan Cox15e0c692006-07-12 15:05:41 +01001236{
Tejun Heoe34bb372007-02-26 20:24:03 +09001237 u32 conf1, conf5, class;
Alan Cox15e0c692006-07-12 15:05:41 +01001238 u8 hdr;
1239
1240 /* Only poke fn 0 */
1241 if (PCI_FUNC(pdev->devfn))
1242 return;
1243
Tejun Heo5ee2ae72007-02-26 20:16:13 +09001244 pci_read_config_dword(pdev, 0x40, &conf1);
1245 pci_read_config_dword(pdev, 0x80, &conf5);
Alan Cox15e0c692006-07-12 15:05:41 +01001246
Tejun Heo5ee2ae72007-02-26 20:16:13 +09001247 conf1 &= ~0x00CFF302; /* Clear bit 1, 8, 9, 12-19, 22, 23 */
1248 conf5 &= ~(1 << 24); /* Clear bit 24 */
Alan Cox15e0c692006-07-12 15:05:41 +01001249
Tejun Heo5ee2ae72007-02-26 20:16:13 +09001250 switch (pdev->device) {
1251 case PCI_DEVICE_ID_JMICRON_JMB360:
1252 /* The controller should be in single function ahci mode */
1253 conf1 |= 0x0002A100; /* Set 8, 13, 15, 17 */
1254 break;
Alan Cox15e0c692006-07-12 15:05:41 +01001255
Tejun Heo5ee2ae72007-02-26 20:16:13 +09001256 case PCI_DEVICE_ID_JMICRON_JMB365:
1257 case PCI_DEVICE_ID_JMICRON_JMB366:
1258 /* Redirect IDE second PATA port to the right spot */
1259 conf5 |= (1 << 24);
1260 /* Fall through */
1261 case PCI_DEVICE_ID_JMICRON_JMB361:
1262 case PCI_DEVICE_ID_JMICRON_JMB363:
1263 /* Enable dual function mode, AHCI on fn 0, IDE fn1 */
1264 /* Set the class codes correctly and then direct IDE 0 */
1265 conf1 |= 0x00C2A102; /* Set 1, 8, 13, 15, 17, 22, 23 */
1266 break;
1267
1268 case PCI_DEVICE_ID_JMICRON_JMB368:
1269 /* The controller should be in single function IDE mode */
1270 conf1 |= 0x00C00000; /* Set 22, 23 */
1271 break;
Alan Cox15e0c692006-07-12 15:05:41 +01001272 }
Tejun Heo5ee2ae72007-02-26 20:16:13 +09001273
1274 pci_write_config_dword(pdev, 0x40, conf1);
1275 pci_write_config_dword(pdev, 0x80, conf5);
1276
1277 /* Update pdev accordingly */
1278 pci_read_config_byte(pdev, PCI_HEADER_TYPE, &hdr);
1279 pdev->hdr_type = hdr & 0x7f;
1280 pdev->multifunction = !!(hdr & 0x80);
Tejun Heoe34bb372007-02-26 20:24:03 +09001281
1282 pci_read_config_dword(pdev, PCI_CLASS_REVISION, &class);
1283 pdev->class = class >> 8;
Alan Cox15e0c692006-07-12 15:05:41 +01001284}
Tejun Heo5ee2ae72007-02-26 20:16:13 +09001285DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB360, quirk_jmicron_ata);
1286DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB361, quirk_jmicron_ata);
1287DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB363, quirk_jmicron_ata);
1288DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB365, quirk_jmicron_ata);
1289DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB366, quirk_jmicron_ata);
1290DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB368, quirk_jmicron_ata);
1291DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB360, quirk_jmicron_ata);
1292DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB361, quirk_jmicron_ata);
1293DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB363, quirk_jmicron_ata);
1294DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB365, quirk_jmicron_ata);
1295DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB366, quirk_jmicron_ata);
1296DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB368, quirk_jmicron_ata);
Alan Cox15e0c692006-07-12 15:05:41 +01001297
1298#endif
1299
Linus Torvalds1da177e2005-04-16 15:20:36 -07001300#ifdef CONFIG_X86_IO_APIC
1301static void __init quirk_alder_ioapic(struct pci_dev *pdev)
1302{
1303 int i;
1304
1305 if ((pdev->class >> 8) != 0xff00)
1306 return;
1307
1308 /* the first BAR is the location of the IO APIC...we must
1309 * not touch this (and it's already covered by the fixmap), so
1310 * forcibly insert it into the resource tree */
1311 if (pci_resource_start(pdev, 0) && pci_resource_len(pdev, 0))
1312 insert_resource(&iomem_resource, &pdev->resource[0]);
1313
1314 /* The next five BARs all seem to be rubbish, so just clean
1315 * them out */
1316 for (i=1; i < 6; i++) {
1317 memset(&pdev->resource[i], 0, sizeof(pdev->resource[i]));
1318 }
1319
1320}
1321DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_EESSC, quirk_alder_ioapic );
1322#endif
1323
Linus Torvalds1da177e2005-04-16 15:20:36 -07001324int pcie_mch_quirk;
Adrian Bunkc30ca1d2006-12-19 05:13:15 +01001325EXPORT_SYMBOL(pcie_mch_quirk);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001326
1327static void __devinit quirk_pcie_mch(struct pci_dev *pdev)
1328{
1329 pcie_mch_quirk = 1;
1330}
1331DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7520_MCH, quirk_pcie_mch );
1332DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7320_MCH, quirk_pcie_mch );
1333DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7525_MCH, quirk_pcie_mch );
1334
Kristen Accardi4602b882005-08-16 15:15:58 -07001335
1336/*
1337 * It's possible for the MSI to get corrupted if shpc and acpi
1338 * are used together on certain PXH-based systems.
1339 */
1340static void __devinit quirk_pcie_pxh(struct pci_dev *dev)
1341{
Eric W. Biedermanf5f2b132007-03-05 00:30:07 -08001342 pci_msi_off(dev);
1343
Kristen Accardi4602b882005-08-16 15:15:58 -07001344 dev->no_msi = 1;
1345
1346 printk(KERN_WARNING "PCI: PXH quirk detected, "
1347 "disabling MSI for SHPC device\n");
1348}
1349DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXHD_0, quirk_pcie_pxh);
1350DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXHD_1, quirk_pcie_pxh);
1351DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_0, quirk_pcie_pxh);
1352DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_1, quirk_pcie_pxh);
1353DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXHV, quirk_pcie_pxh);
1354
Kristen Carlson Accardiffadcc22006-07-12 08:59:00 -07001355/*
1356 * Some Intel PCI Express chipsets have trouble with downstream
1357 * device power management.
1358 */
1359static void quirk_intel_pcie_pm(struct pci_dev * dev)
1360{
1361 pci_pm_d3_delay = 120;
1362 dev->no_d1d2 = 1;
1363}
1364
1365DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e2, quirk_intel_pcie_pm);
1366DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e3, quirk_intel_pcie_pm);
1367DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e4, quirk_intel_pcie_pm);
1368DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e5, quirk_intel_pcie_pm);
1369DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e6, quirk_intel_pcie_pm);
1370DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e7, quirk_intel_pcie_pm);
1371DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25f7, quirk_intel_pcie_pm);
1372DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25f8, quirk_intel_pcie_pm);
1373DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25f9, quirk_intel_pcie_pm);
1374DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25fa, quirk_intel_pcie_pm);
1375DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2601, quirk_intel_pcie_pm);
1376DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2602, quirk_intel_pcie_pm);
1377DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2603, quirk_intel_pcie_pm);
1378DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2604, quirk_intel_pcie_pm);
1379DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2605, quirk_intel_pcie_pm);
1380DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2606, quirk_intel_pcie_pm);
1381DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2607, quirk_intel_pcie_pm);
1382DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2608, quirk_intel_pcie_pm);
1383DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2609, quirk_intel_pcie_pm);
1384DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x260a, quirk_intel_pcie_pm);
1385DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x260b, quirk_intel_pcie_pm);
Kristen Accardi4602b882005-08-16 15:15:58 -07001386
Sergei Shtylyov33dced22007-02-07 18:18:45 +01001387/*
1388 * Toshiba TC86C001 IDE controller reports the standard 8-byte BAR0 size
1389 * but the PIO transfers won't work if BAR0 falls at the odd 8 bytes.
1390 * Re-allocate the region if needed...
1391 */
1392static void __init quirk_tc86c001_ide(struct pci_dev *dev)
1393{
1394 struct resource *r = &dev->resource[0];
1395
1396 if (r->start & 0x8) {
1397 r->start = 0;
1398 r->end = 0xf;
1399 }
1400}
1401DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_TOSHIBA_2,
1402 PCI_DEVICE_ID_TOSHIBA_TC86C001_IDE,
1403 quirk_tc86c001_ide);
1404
Linus Torvalds1da177e2005-04-16 15:20:36 -07001405static void __devinit quirk_netmos(struct pci_dev *dev)
1406{
1407 unsigned int num_parallel = (dev->subsystem_device & 0xf0) >> 4;
1408 unsigned int num_serial = dev->subsystem_device & 0xf;
1409
1410 /*
1411 * These Netmos parts are multiport serial devices with optional
1412 * parallel ports. Even when parallel ports are present, they
1413 * are identified as class SERIAL, which means the serial driver
1414 * will claim them. To prevent this, mark them as class OTHER.
1415 * These combo devices should be claimed by parport_serial.
1416 *
1417 * The subdevice ID is of the form 0x00PS, where <P> is the number
1418 * of parallel ports and <S> is the number of serial ports.
1419 */
1420 switch (dev->device) {
1421 case PCI_DEVICE_ID_NETMOS_9735:
1422 case PCI_DEVICE_ID_NETMOS_9745:
1423 case PCI_DEVICE_ID_NETMOS_9835:
1424 case PCI_DEVICE_ID_NETMOS_9845:
1425 case PCI_DEVICE_ID_NETMOS_9855:
1426 if ((dev->class >> 8) == PCI_CLASS_COMMUNICATION_SERIAL &&
1427 num_parallel) {
1428 printk(KERN_INFO "PCI: Netmos %04x (%u parallel, "
1429 "%u serial); changing class SERIAL to OTHER "
1430 "(use parport_serial)\n",
1431 dev->device, num_parallel, num_serial);
1432 dev->class = (PCI_CLASS_COMMUNICATION_OTHER << 8) |
1433 (dev->class & 0xff);
1434 }
1435 }
1436}
1437DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NETMOS, PCI_ANY_ID, quirk_netmos);
1438
Bjorn Helgaas16a74742006-04-05 08:47:00 -04001439static void __devinit quirk_e100_interrupt(struct pci_dev *dev)
1440{
1441 u16 command;
Bjorn Helgaas16a74742006-04-05 08:47:00 -04001442 u8 __iomem *csr;
1443 u8 cmd_hi;
1444
1445 switch (dev->device) {
1446 /* PCI IDs taken from drivers/net/e100.c */
1447 case 0x1029:
1448 case 0x1030 ... 0x1034:
1449 case 0x1038 ... 0x103E:
1450 case 0x1050 ... 0x1057:
1451 case 0x1059:
1452 case 0x1064 ... 0x106B:
1453 case 0x1091 ... 0x1095:
1454 case 0x1209:
1455 case 0x1229:
1456 case 0x2449:
1457 case 0x2459:
1458 case 0x245D:
1459 case 0x27DC:
1460 break;
1461 default:
1462 return;
1463 }
1464
1465 /*
1466 * Some firmware hands off the e100 with interrupts enabled,
1467 * which can cause a flood of interrupts if packets are
1468 * received before the driver attaches to the device. So
1469 * disable all e100 interrupts here. The driver will
1470 * re-enable them when it's ready.
1471 */
1472 pci_read_config_word(dev, PCI_COMMAND, &command);
Bjorn Helgaas16a74742006-04-05 08:47:00 -04001473
Benjamin Herrenschmidt1bef7dc2007-09-29 09:06:21 +10001474 if (!(command & PCI_COMMAND_MEMORY) || !pci_resource_start(dev, 0))
Bjorn Helgaas16a74742006-04-05 08:47:00 -04001475 return;
1476
Benjamin Herrenschmidt1bef7dc2007-09-29 09:06:21 +10001477 /* Convert from PCI bus to resource space. */
1478 csr = ioremap(pci_resource_start(dev, 0), 8);
Bjorn Helgaas16a74742006-04-05 08:47:00 -04001479 if (!csr) {
1480 printk(KERN_WARNING "PCI: Can't map %s e100 registers\n",
1481 pci_name(dev));
1482 return;
1483 }
1484
1485 cmd_hi = readb(csr + 3);
1486 if (cmd_hi == 0) {
1487 printk(KERN_WARNING "PCI: Firmware left %s e100 interrupts "
1488 "enabled, disabling\n", pci_name(dev));
1489 writeb(1, csr + 3);
1490 }
1491
1492 iounmap(csr);
1493}
Marian Balakowicz4e68fc92007-07-03 11:03:18 +02001494DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_ANY_ID, quirk_e100_interrupt);
Ivan Kokshayskya5312e22005-11-01 01:43:56 +03001495
1496static void __devinit fixup_rev1_53c810(struct pci_dev* dev)
1497{
1498 /* rev 1 ncr53c810 chips don't set the class at all which means
1499 * they don't get their resources remapped. Fix that here.
1500 */
1501
1502 if (dev->class == PCI_CLASS_NOT_DEFINED) {
1503 printk(KERN_INFO "NCR 53c810 rev 1 detected, setting PCI class.\n");
1504 dev->class = PCI_CLASS_STORAGE_SCSI;
1505 }
1506}
1507DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NCR, PCI_DEVICE_ID_NCR_53C810, fixup_rev1_53c810);
1508
Linus Torvalds1da177e2005-04-16 15:20:36 -07001509static void pci_do_fixups(struct pci_dev *dev, struct pci_fixup *f, struct pci_fixup *end)
1510{
1511 while (f < end) {
1512 if ((f->vendor == dev->vendor || f->vendor == (u16) PCI_ANY_ID) &&
1513 (f->device == dev->device || f->device == (u16) PCI_ANY_ID)) {
1514 pr_debug("PCI: Calling quirk %p for %s\n", f->hook, pci_name(dev));
1515 f->hook(dev);
1516 }
1517 f++;
1518 }
1519}
1520
1521extern struct pci_fixup __start_pci_fixups_early[];
1522extern struct pci_fixup __end_pci_fixups_early[];
1523extern struct pci_fixup __start_pci_fixups_header[];
1524extern struct pci_fixup __end_pci_fixups_header[];
1525extern struct pci_fixup __start_pci_fixups_final[];
1526extern struct pci_fixup __end_pci_fixups_final[];
1527extern struct pci_fixup __start_pci_fixups_enable[];
1528extern struct pci_fixup __end_pci_fixups_enable[];
Alan Cox1597cac2006-12-04 15:14:45 -08001529extern struct pci_fixup __start_pci_fixups_resume[];
1530extern struct pci_fixup __end_pci_fixups_resume[];
Linus Torvalds1da177e2005-04-16 15:20:36 -07001531
1532
1533void pci_fixup_device(enum pci_fixup_pass pass, struct pci_dev *dev)
1534{
1535 struct pci_fixup *start, *end;
1536
1537 switch(pass) {
1538 case pci_fixup_early:
1539 start = __start_pci_fixups_early;
1540 end = __end_pci_fixups_early;
1541 break;
1542
1543 case pci_fixup_header:
1544 start = __start_pci_fixups_header;
1545 end = __end_pci_fixups_header;
1546 break;
1547
1548 case pci_fixup_final:
1549 start = __start_pci_fixups_final;
1550 end = __end_pci_fixups_final;
1551 break;
1552
1553 case pci_fixup_enable:
1554 start = __start_pci_fixups_enable;
1555 end = __end_pci_fixups_enable;
1556 break;
1557
Alan Cox1597cac2006-12-04 15:14:45 -08001558 case pci_fixup_resume:
1559 start = __start_pci_fixups_resume;
1560 end = __end_pci_fixups_resume;
1561 break;
1562
Linus Torvalds1da177e2005-04-16 15:20:36 -07001563 default:
1564 /* stupid compiler warning, you would think with an enum... */
1565 return;
1566 }
1567 pci_do_fixups(dev, start, end);
1568}
Adrian Bunkc30ca1d2006-12-19 05:13:15 +01001569EXPORT_SYMBOL(pci_fixup_device);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001570
Daniel Yeisley9d265122005-12-05 07:06:43 -05001571/* Enable 1k I/O space granularity on the Intel P64H2 */
1572static void __devinit quirk_p64h2_1k_io(struct pci_dev *dev)
1573{
1574 u16 en1k;
1575 u8 io_base_lo, io_limit_lo;
1576 unsigned long base, limit;
1577 struct resource *res = dev->resource + PCI_BRIDGE_RESOURCES;
1578
1579 pci_read_config_word(dev, 0x40, &en1k);
1580
1581 if (en1k & 0x200) {
1582 printk(KERN_INFO "PCI: Enable I/O Space to 1 KB Granularity\n");
1583
1584 pci_read_config_byte(dev, PCI_IO_BASE, &io_base_lo);
1585 pci_read_config_byte(dev, PCI_IO_LIMIT, &io_limit_lo);
1586 base = (io_base_lo & (PCI_IO_RANGE_MASK | 0x0c)) << 8;
1587 limit = (io_limit_lo & (PCI_IO_RANGE_MASK | 0x0c)) << 8;
1588
1589 if (base <= limit) {
1590 res->start = base;
1591 res->end = limit + 0x3ff;
1592 }
1593 }
1594}
1595DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x1460, quirk_p64h2_1k_io);
1596
Daniel Yeisley15a260d2006-12-21 14:34:57 -05001597/* Fix the IOBL_ADR for 1k I/O space granularity on the Intel P64H2
1598 * The IOBL_ADR gets re-written to 4k boundaries in pci_setup_bridge()
1599 * in drivers/pci/setup-bus.c
1600 */
1601static void __devinit quirk_p64h2_1k_io_fix_iobl(struct pci_dev *dev)
1602{
1603 u16 en1k, iobl_adr, iobl_adr_1k;
1604 struct resource *res = dev->resource + PCI_BRIDGE_RESOURCES;
1605
1606 pci_read_config_word(dev, 0x40, &en1k);
1607
1608 if (en1k & 0x200) {
1609 pci_read_config_word(dev, PCI_IO_BASE, &iobl_adr);
1610
1611 iobl_adr_1k = iobl_adr | (res->start >> 8) | (res->end & 0xfc00);
1612
1613 if (iobl_adr != iobl_adr_1k) {
1614 printk(KERN_INFO "PCI: Fixing P64H2 IOBL_ADR from 0x%x to 0x%x for 1 KB Granularity\n",
1615 iobl_adr,iobl_adr_1k);
1616 pci_write_config_word(dev, PCI_IO_BASE, iobl_adr_1k);
1617 }
1618 }
1619}
1620DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x1460, quirk_p64h2_1k_io_fix_iobl);
1621
Brice Goglincf34a8e2006-06-13 14:35:42 -04001622/* Under some circumstances, AER is not linked with extended capabilities.
1623 * Force it to be linked by setting the corresponding control bit in the
1624 * config space.
1625 */
Alan Cox1597cac2006-12-04 15:14:45 -08001626static void quirk_nvidia_ck804_pcie_aer_ext_cap(struct pci_dev *dev)
Brice Goglincf34a8e2006-06-13 14:35:42 -04001627{
1628 uint8_t b;
1629 if (pci_read_config_byte(dev, 0xf41, &b) == 0) {
1630 if (!(b & 0x20)) {
1631 pci_write_config_byte(dev, 0xf41, b | 0x20);
1632 printk(KERN_INFO
1633 "PCI: Linking AER extended capability on %s\n",
1634 pci_name(dev));
1635 }
1636 }
1637}
1638DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_CK804_PCIE,
1639 quirk_nvidia_ck804_pcie_aer_ext_cap);
Alan Cox1597cac2006-12-04 15:14:45 -08001640DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_CK804_PCIE,
1641 quirk_nvidia_ck804_pcie_aer_ext_cap);
Brice Goglincf34a8e2006-06-13 14:35:42 -04001642
Brice Goglin3f79e102006-08-31 01:54:56 -04001643#ifdef CONFIG_PCI_MSI
Tejun Heoebdf7d32007-05-31 00:40:48 -07001644/* Some chipsets do not support MSI. We cannot easily rely on setting
1645 * PCI_BUS_FLAGS_NO_MSI in its bus flags because there are actually
1646 * some other busses controlled by the chipset even if Linux is not
1647 * aware of it. Instead of setting the flag on all busses in the
1648 * machine, simply disable MSI globally.
Brice Goglin3f79e102006-08-31 01:54:56 -04001649 */
Tejun Heoebdf7d32007-05-31 00:40:48 -07001650static void __init quirk_disable_all_msi(struct pci_dev *dev)
Brice Goglin3f79e102006-08-31 01:54:56 -04001651{
Michael Ellerman88187df2007-01-25 19:34:07 +11001652 pci_no_msi();
1653 printk(KERN_WARNING "PCI: MSI quirk detected. MSI deactivated.\n");
Brice Goglin3f79e102006-08-31 01:54:56 -04001654}
Tejun Heoebdf7d32007-05-31 00:40:48 -07001655DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_GCNB_LE, quirk_disable_all_msi);
Andy Gospodareke3008de2007-05-10 22:58:57 -07001656DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_HT1000_PCIX, quirk_disable_all_msi);
Tejun Heoebdf7d32007-05-31 00:40:48 -07001657DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RS400_200, quirk_disable_all_msi);
1658DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RS480, quirk_disable_all_msi);
Tejun Heoaea6a432007-08-18 03:03:10 +09001659DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RD580, quirk_disable_all_msi);
Tejun Heof122392f2007-08-21 14:33:01 +09001660DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RX790, quirk_disable_all_msi);
Tejun Heo4be8f902007-08-16 14:34:42 +09001661DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RS690, quirk_disable_all_msi);
Jay Cliburn184b8122007-05-26 17:01:04 -05001662DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_VT3351, quirk_disable_all_msi);
Brice Goglin3f79e102006-08-31 01:54:56 -04001663
1664/* Disable MSI on chipsets that are known to not support it */
1665static void __devinit quirk_disable_msi(struct pci_dev *dev)
1666{
1667 if (dev->subordinate) {
1668 printk(KERN_WARNING "PCI: MSI quirk detected. "
1669 "PCI_BUS_FLAGS_NO_MSI set for %s subordinate bus.\n",
1670 pci_name(dev));
1671 dev->subordinate->bus_flags |= PCI_BUS_FLAGS_NO_MSI;
1672 }
1673}
1674DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8131_BRIDGE, quirk_disable_msi);
Brice Goglin6397c752006-08-31 01:55:32 -04001675
1676/* Go through the list of Hypertransport capabilities and
1677 * return 1 if a HT MSI capability is found and enabled */
1678static int __devinit msi_ht_cap_enabled(struct pci_dev *dev)
1679{
Michael Ellerman7a380502006-11-22 18:26:21 +11001680 int pos, ttl = 48;
1681
1682 pos = pci_find_ht_capability(dev, HT_CAPTYPE_MSI_MAPPING);
1683 while (pos && ttl--) {
1684 u8 flags;
1685
1686 if (pci_read_config_byte(dev, pos + HT_MSI_FLAGS,
1687 &flags) == 0)
1688 {
1689 printk(KERN_INFO "PCI: Found %s HT MSI Mapping on %s\n",
1690 flags & HT_MSI_FLAGS_ENABLE ?
1691 "enabled" : "disabled", pci_name(dev));
1692 return (flags & HT_MSI_FLAGS_ENABLE) != 0;
Brice Goglin6397c752006-08-31 01:55:32 -04001693 }
Michael Ellerman7a380502006-11-22 18:26:21 +11001694
1695 pos = pci_find_next_ht_capability(dev, pos,
1696 HT_CAPTYPE_MSI_MAPPING);
Brice Goglin6397c752006-08-31 01:55:32 -04001697 }
1698 return 0;
1699}
1700
1701/* Check the hypertransport MSI mapping to know whether MSI is enabled or not */
1702static void __devinit quirk_msi_ht_cap(struct pci_dev *dev)
1703{
1704 if (dev->subordinate && !msi_ht_cap_enabled(dev)) {
1705 printk(KERN_WARNING "PCI: MSI quirk detected. "
1706 "MSI disabled on chipset %s.\n",
1707 pci_name(dev));
1708 dev->subordinate->bus_flags |= PCI_BUS_FLAGS_NO_MSI;
1709 }
1710}
1711DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_HT2000_PCIE,
1712 quirk_msi_ht_cap);
1713
1714/* The nVidia CK804 chipset may have 2 HT MSI mappings.
1715 * MSI are supported if the MSI capability set in any of these mappings.
1716 */
1717static void __devinit quirk_nvidia_ck804_msi_ht_cap(struct pci_dev *dev)
1718{
1719 struct pci_dev *pdev;
1720
1721 if (!dev->subordinate)
1722 return;
1723
1724 /* check HT MSI cap on this chipset and the root one.
1725 * a single one having MSI is enough to be sure that MSI are supported.
1726 */
Alan Cox11f242f2006-10-10 14:39:00 -07001727 pdev = pci_get_slot(dev->bus, 0);
Jesper Juhl9ac0ce82006-12-04 15:14:48 -08001728 if (!pdev)
1729 return;
David Rientjes0c875c22006-12-03 11:55:34 -08001730 if (!msi_ht_cap_enabled(dev) && !msi_ht_cap_enabled(pdev)) {
Brice Goglin6397c752006-08-31 01:55:32 -04001731 printk(KERN_WARNING "PCI: MSI quirk detected. "
1732 "MSI disabled on chipset %s.\n",
1733 pci_name(dev));
1734 dev->subordinate->bus_flags |= PCI_BUS_FLAGS_NO_MSI;
1735 }
Alan Cox11f242f2006-10-10 14:39:00 -07001736 pci_dev_put(pdev);
Brice Goglin6397c752006-08-31 01:55:32 -04001737}
1738DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_CK804_PCIE,
1739 quirk_nvidia_ck804_msi_ht_cap);
Brice Goglin3f79e102006-08-31 01:54:56 -04001740#endif /* CONFIG_PCI_MSI */