blob: 6ccc2e95930a299074550ef9c050a42011c80c98 [file] [log] [blame]
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{
475 u8 rev;
476 u32 region;
477
478 pci_read_config_byte(dev, PCI_CLASS_REVISION, &rev);
479 if (rev & 0x10) {
480 pci_read_config_dword(dev, 0x48, &region);
481 region &= PCI_BASE_ADDRESS_IO_MASK;
Linus Torvalds6693e742005-10-25 20:40:09 -0700482 quirk_io_region(dev, region, 256, PCI_BRIDGE_RESOURCES, "vt82c586 ACPI");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700483 }
484}
485DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C586_3, quirk_vt82c586_acpi );
486
487/*
488 * VIA VT82C686 ACPI: Three IO region pointed to by (long)words at
489 * 0x48 (256 bytes of ACPI registers)
490 * 0x70 (128 bytes of hardware monitoring register)
491 * 0x90 (16 bytes of SMB registers)
492 */
493static void __devinit quirk_vt82c686_acpi(struct pci_dev *dev)
494{
495 u16 hm;
496 u32 smb;
497
498 quirk_vt82c586_acpi(dev);
499
500 pci_read_config_word(dev, 0x70, &hm);
501 hm &= PCI_BASE_ADDRESS_IO_MASK;
Meelis Roos02f313b2005-10-29 13:31:49 +0300502 quirk_io_region(dev, hm, 128, PCI_BRIDGE_RESOURCES + 1, "vt82c686 HW-mon");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700503
504 pci_read_config_dword(dev, 0x90, &smb);
505 smb &= PCI_BASE_ADDRESS_IO_MASK;
Meelis Roos02f313b2005-10-29 13:31:49 +0300506 quirk_io_region(dev, smb, 16, PCI_BRIDGE_RESOURCES + 2, "vt82c686 SMB");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700507}
508DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686_4, quirk_vt82c686_acpi );
509
Ivan Kokshaysky6d85f292005-08-08 12:55:54 +0400510/*
511 * VIA VT8235 ISA Bridge: Two IO regions pointed to by words at
512 * 0x88 (128 bytes of power management registers)
513 * 0xd0 (16 bytes of SMB registers)
514 */
515static void __devinit quirk_vt8235_acpi(struct pci_dev *dev)
516{
517 u16 pm, smb;
518
519 pci_read_config_word(dev, 0x88, &pm);
520 pm &= PCI_BASE_ADDRESS_IO_MASK;
Linus Torvalds6693e742005-10-25 20:40:09 -0700521 quirk_io_region(dev, pm, 128, PCI_BRIDGE_RESOURCES, "vt8235 PM");
Ivan Kokshaysky6d85f292005-08-08 12:55:54 +0400522
523 pci_read_config_word(dev, 0xd0, &smb);
524 smb &= PCI_BASE_ADDRESS_IO_MASK;
Linus Torvalds6693e742005-10-25 20:40:09 -0700525 quirk_io_region(dev, smb, 16, PCI_BRIDGE_RESOURCES + 1, "vt8235 SMB");
Ivan Kokshaysky6d85f292005-08-08 12:55:54 +0400526}
527DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8235, quirk_vt8235_acpi);
528
Linus Torvalds1da177e2005-04-16 15:20:36 -0700529
530#ifdef CONFIG_X86_IO_APIC
531
532#include <asm/io_apic.h>
533
534/*
535 * VIA 686A/B: If an IO-APIC is active, we need to route all on-chip
536 * devices to the external APIC.
537 *
538 * TODO: When we have device-specific interrupt routers,
539 * this code will go away from quirks.
540 */
Alan Cox1597cac2006-12-04 15:14:45 -0800541static void quirk_via_ioapic(struct pci_dev *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700542{
543 u8 tmp;
544
545 if (nr_ioapics < 1)
546 tmp = 0; /* nothing routed to external APIC */
547 else
548 tmp = 0x1f; /* all known bits (4-0) routed to external APIC */
549
550 printk(KERN_INFO "PCI: %sbling Via external APIC routing\n",
551 tmp == 0 ? "Disa" : "Ena");
552
553 /* Offset 0x58: External APIC IRQ output control */
554 pci_write_config_byte (dev, 0x58, tmp);
555}
556DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686, quirk_via_ioapic );
Alan Cox1597cac2006-12-04 15:14:45 -0800557DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686, quirk_via_ioapic );
Linus Torvalds1da177e2005-04-16 15:20:36 -0700558
559/*
Karsten Wiesea1740912005-09-03 15:56:33 -0700560 * VIA 8237: Some BIOSs don't set the 'Bypass APIC De-Assert Message' Bit.
561 * This leads to doubled level interrupt rates.
562 * Set this bit to get rid of cycle wastage.
563 * Otherwise uncritical.
564 */
Alan Cox1597cac2006-12-04 15:14:45 -0800565static void quirk_via_vt8237_bypass_apic_deassert(struct pci_dev *dev)
Karsten Wiesea1740912005-09-03 15:56:33 -0700566{
567 u8 misc_control2;
568#define BYPASS_APIC_DEASSERT 8
569
570 pci_read_config_byte(dev, 0x5B, &misc_control2);
571 if (!(misc_control2 & BYPASS_APIC_DEASSERT)) {
572 printk(KERN_INFO "PCI: Bypassing VIA 8237 APIC De-Assert Message\n");
573 pci_write_config_byte(dev, 0x5B, misc_control2|BYPASS_APIC_DEASSERT);
574 }
575}
576DECLARE_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 -0800577DECLARE_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 -0700578
579/*
Linus Torvalds1da177e2005-04-16 15:20:36 -0700580 * The AMD io apic can hang the box when an apic irq is masked.
581 * We check all revs >= B0 (yet not in the pre production!) as the bug
582 * is currently marked NoFix
583 *
584 * We have multiple reports of hangs with this chipset that went away with
Alan Cox236561e2006-09-30 23:27:03 -0700585 * noapic specified. For the moment we assume it's the erratum. We may be wrong
Linus Torvalds1da177e2005-04-16 15:20:36 -0700586 * of course. However the advice is demonstrably good even if so..
587 */
588static void __devinit quirk_amd_ioapic(struct pci_dev *dev)
589{
590 u8 rev;
591
592 pci_read_config_byte(dev, PCI_REVISION_ID, &rev);
593 if (rev >= 0x02) {
Alan Cox236561e2006-09-30 23:27:03 -0700594 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 -0700595 printk(KERN_WARNING " : booting with the \"noapic\" option.\n");
596 }
597}
598DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_VIPER_7410, quirk_amd_ioapic );
599
600static void __init quirk_ioapic_rmw(struct pci_dev *dev)
601{
602 if (dev->devfn == 0 && dev->bus->number == 0)
603 sis_apic_bug = 1;
604}
605DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SI, PCI_ANY_ID, quirk_ioapic_rmw );
606
Linus Torvalds1da177e2005-04-16 15:20:36 -0700607#define AMD8131_revA0 0x01
608#define AMD8131_revB0 0x11
609#define AMD8131_MISC 0x40
610#define AMD8131_NIOAMODE_BIT 0
Alan Cox1597cac2006-12-04 15:14:45 -0800611static void quirk_amd_8131_ioapic(struct pci_dev *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700612{
613 unsigned char revid, tmp;
614
Linus Torvalds1da177e2005-04-16 15:20:36 -0700615 if (nr_ioapics == 0)
616 return;
617
618 pci_read_config_byte(dev, PCI_REVISION_ID, &revid);
619 if (revid == AMD8131_revA0 || revid == AMD8131_revB0) {
620 printk(KERN_INFO "Fixing up AMD8131 IOAPIC mode\n");
621 pci_read_config_byte( dev, AMD8131_MISC, &tmp);
622 tmp &= ~(1 << AMD8131_NIOAMODE_BIT);
623 pci_write_config_byte( dev, AMD8131_MISC, tmp);
624 }
625}
John W. Linville5da594b2006-03-20 14:33:56 -0500626DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8131_BRIDGE, quirk_amd_8131_ioapic);
Alan Cox1597cac2006-12-04 15:14:45 -0800627DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8131_BRIDGE, quirk_amd_8131_ioapic);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700628#endif /* CONFIG_X86_IO_APIC */
629
630
631/*
Linus Torvalds1da177e2005-04-16 15:20:36 -0700632 * FIXME: it is questionable that quirk_via_acpi
633 * is needed. It shows up as an ISA bridge, and does not
634 * support the PCI_INTERRUPT_LINE register at all. Therefore
635 * it seems like setting the pci_dev's 'irq' to the
636 * value of the ACPI SCI interrupt is only done for convenience.
637 * -jgarzik
638 */
639static void __devinit quirk_via_acpi(struct pci_dev *d)
640{
641 /*
642 * VIA ACPI device: SCI IRQ line in PCI config byte 0x42
643 */
644 u8 irq;
645 pci_read_config_byte(d, 0x42, &irq);
646 irq &= 0xf;
647 if (irq && (irq != 2))
648 d->irq = irq;
649}
650DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C586_3, quirk_via_acpi );
651DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686_4, quirk_via_acpi );
652
Daniel Drake09d60292006-09-25 16:52:19 -0700653
654/*
Alan Cox1597cac2006-12-04 15:14:45 -0800655 * VIA bridges which have VLink
Daniel Drake09d60292006-09-25 16:52:19 -0700656 */
Alan Cox1597cac2006-12-04 15:14:45 -0800657
Jean Delvarec06bb5d2007-01-30 14:36:09 -0800658static int via_vlink_dev_lo = -1, via_vlink_dev_hi = 18;
659
660static void quirk_via_bridge(struct pci_dev *dev)
661{
662 /* See what bridge we have and find the device ranges */
663 switch (dev->device) {
664 case PCI_DEVICE_ID_VIA_82C686:
Jean Delvarecb7468e2007-01-31 23:48:12 -0800665 /* The VT82C686 is special, it attaches to PCI and can have
666 any device number. All its subdevices are functions of
667 that single device. */
668 via_vlink_dev_lo = PCI_SLOT(dev->devfn);
669 via_vlink_dev_hi = PCI_SLOT(dev->devfn);
Jean Delvarec06bb5d2007-01-30 14:36:09 -0800670 break;
671 case PCI_DEVICE_ID_VIA_8237:
672 case PCI_DEVICE_ID_VIA_8237A:
673 via_vlink_dev_lo = 15;
674 break;
675 case PCI_DEVICE_ID_VIA_8235:
676 via_vlink_dev_lo = 16;
677 break;
678 case PCI_DEVICE_ID_VIA_8231:
679 case PCI_DEVICE_ID_VIA_8233_0:
680 case PCI_DEVICE_ID_VIA_8233A:
681 case PCI_DEVICE_ID_VIA_8233C_0:
682 via_vlink_dev_lo = 17;
683 break;
684 }
685}
686DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686, quirk_via_bridge);
687DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8231, quirk_via_bridge);
688DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8233_0, quirk_via_bridge);
689DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8233A, quirk_via_bridge);
690DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8233C_0, quirk_via_bridge);
691DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8235, quirk_via_bridge);
692DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, quirk_via_bridge);
693DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237A, quirk_via_bridge);
Daniel Drake09d60292006-09-25 16:52:19 -0700694
Alan Cox1597cac2006-12-04 15:14:45 -0800695/**
696 * quirk_via_vlink - VIA VLink IRQ number update
697 * @dev: PCI device
698 *
699 * If the device we are dealing with is on a PIC IRQ we need to
700 * ensure that the IRQ line register which usually is not relevant
701 * for PCI cards, is actually written so that interrupts get sent
Jean Delvarec06bb5d2007-01-30 14:36:09 -0800702 * to the right place.
703 * We only do this on systems where a VIA south bridge was detected,
704 * and only for VIA devices on the motherboard (see quirk_via_bridge
705 * above).
Alan Cox1597cac2006-12-04 15:14:45 -0800706 */
707
708static void quirk_via_vlink(struct pci_dev *dev)
Len Brown25be5e62005-05-27 04:21:50 -0400709{
710 u8 irq, new_irq;
711
Jean Delvarec06bb5d2007-01-30 14:36:09 -0800712 /* Check if we have VLink at all */
713 if (via_vlink_dev_lo == -1)
Daniel Drake09d60292006-09-25 16:52:19 -0700714 return;
715
716 new_irq = dev->irq;
717
718 /* Don't quirk interrupts outside the legacy IRQ range */
719 if (!new_irq || new_irq > 15)
720 return;
721
Alan Cox1597cac2006-12-04 15:14:45 -0800722 /* Internal device ? */
Jean Delvarec06bb5d2007-01-30 14:36:09 -0800723 if (dev->bus->number != 0 || PCI_SLOT(dev->devfn) > via_vlink_dev_hi ||
724 PCI_SLOT(dev->devfn) < via_vlink_dev_lo)
Alan Cox1597cac2006-12-04 15:14:45 -0800725 return;
726
727 /* This is an internal VLink device on a PIC interrupt. The BIOS
728 ought to have set this but may not have, so we redo it */
729
Len Brown25be5e62005-05-27 04:21:50 -0400730 pci_read_config_byte(dev, PCI_INTERRUPT_LINE, &irq);
731 if (new_irq != irq) {
Alan Cox1597cac2006-12-04 15:14:45 -0800732 printk(KERN_INFO "PCI: VIA VLink IRQ fixup for %s, from %d to %d\n",
Len Brown25be5e62005-05-27 04:21:50 -0400733 pci_name(dev), irq, new_irq);
734 udelay(15); /* unknown if delay really needed */
735 pci_write_config_byte(dev, PCI_INTERRUPT_LINE, new_irq);
736 }
737}
Alan Cox1597cac2006-12-04 15:14:45 -0800738DECLARE_PCI_FIXUP_ENABLE(PCI_VENDOR_ID_VIA, PCI_ANY_ID, quirk_via_vlink);
Len Brown25be5e62005-05-27 04:21:50 -0400739
Linus Torvalds1da177e2005-04-16 15:20:36 -0700740/*
Linus Torvalds1da177e2005-04-16 15:20:36 -0700741 * VIA VT82C598 has its device ID settable and many BIOSes
742 * set it to the ID of VT82C597 for backward compatibility.
743 * We need to switch it off to be able to recognize the real
744 * type of the chip.
745 */
746static void __devinit quirk_vt82c598_id(struct pci_dev *dev)
747{
748 pci_write_config_byte(dev, 0xfc, 0);
749 pci_read_config_word(dev, PCI_DEVICE_ID, &dev->device);
750}
751DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C597_0, quirk_vt82c598_id );
752
753/*
754 * CardBus controllers have a legacy base address that enables them
755 * to respond as i82365 pcmcia controllers. We don't want them to
756 * do this even if the Linux CardBus driver is not loaded, because
757 * the Linux i82365 driver does not (and should not) handle CardBus.
758 */
Alan Cox1597cac2006-12-04 15:14:45 -0800759static void quirk_cardbus_legacy(struct pci_dev *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700760{
761 if ((PCI_CLASS_BRIDGE_CARDBUS << 8) ^ dev->class)
762 return;
763 pci_write_config_dword(dev, PCI_CB_LEGACY_MODE_BASE, 0);
764}
765DECLARE_PCI_FIXUP_FINAL(PCI_ANY_ID, PCI_ANY_ID, quirk_cardbus_legacy);
Alan Cox1597cac2006-12-04 15:14:45 -0800766DECLARE_PCI_FIXUP_RESUME(PCI_ANY_ID, PCI_ANY_ID, quirk_cardbus_legacy);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700767
768/*
769 * Following the PCI ordering rules is optional on the AMD762. I'm not
770 * sure what the designers were smoking but let's not inhale...
771 *
772 * To be fair to AMD, it follows the spec by default, its BIOS people
773 * who turn it off!
774 */
Alan Cox1597cac2006-12-04 15:14:45 -0800775static void quirk_amd_ordering(struct pci_dev *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700776{
777 u32 pcic;
778 pci_read_config_dword(dev, 0x4C, &pcic);
779 if ((pcic&6)!=6) {
780 pcic |= 6;
781 printk(KERN_WARNING "BIOS failed to enable PCI standards compliance, fixing this error.\n");
782 pci_write_config_dword(dev, 0x4C, pcic);
783 pci_read_config_dword(dev, 0x84, &pcic);
784 pcic |= (1<<23); /* Required in this mode */
785 pci_write_config_dword(dev, 0x84, pcic);
786 }
787}
788DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_FE_GATE_700C, quirk_amd_ordering );
Alan Cox1597cac2006-12-04 15:14:45 -0800789DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_FE_GATE_700C, quirk_amd_ordering );
Linus Torvalds1da177e2005-04-16 15:20:36 -0700790
791/*
792 * DreamWorks provided workaround for Dunord I-3000 problem
793 *
794 * This card decodes and responds to addresses not apparently
795 * assigned to it. We force a larger allocation to ensure that
796 * nothing gets put too close to it.
797 */
798static void __devinit quirk_dunord ( struct pci_dev * dev )
799{
800 struct resource *r = &dev->resource [1];
801 r->start = 0;
802 r->end = 0xffffff;
803}
804DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_DUNORD, PCI_DEVICE_ID_DUNORD_I3000, quirk_dunord );
805
806/*
807 * i82380FB mobile docking controller: its PCI-to-PCI bridge
808 * is subtractive decoding (transparent), and does indicate this
809 * in the ProgIf. Unfortunately, the ProgIf value is wrong - 0x80
810 * instead of 0x01.
811 */
812static void __devinit quirk_transparent_bridge(struct pci_dev *dev)
813{
814 dev->transparent = 1;
815}
816DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82380FB, quirk_transparent_bridge );
817DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_TOSHIBA, 0x605, quirk_transparent_bridge );
818
819/*
820 * Common misconfiguration of the MediaGX/Geode PCI master that will
821 * reduce PCI bandwidth from 70MB/s to 25MB/s. See the GXM/GXLV/GX1
822 * datasheets found at http://www.national.com/ds/GX for info on what
823 * these bits do. <christer@weinigel.se>
824 */
Alan Cox1597cac2006-12-04 15:14:45 -0800825static void quirk_mediagx_master(struct pci_dev *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700826{
827 u8 reg;
828 pci_read_config_byte(dev, 0x41, &reg);
829 if (reg & 2) {
830 reg &= ~2;
831 printk(KERN_INFO "PCI: Fixup for MediaGX/Geode Slave Disconnect Boundary (0x41=0x%02x)\n", reg);
832 pci_write_config_byte(dev, 0x41, reg);
833 }
834}
835DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CYRIX, PCI_DEVICE_ID_CYRIX_PCI_MASTER, quirk_mediagx_master );
Alan Cox1597cac2006-12-04 15:14:45 -0800836DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_CYRIX, PCI_DEVICE_ID_CYRIX_PCI_MASTER, quirk_mediagx_master );
Linus Torvalds1da177e2005-04-16 15:20:36 -0700837
838/*
Linus Torvalds1da177e2005-04-16 15:20:36 -0700839 * Ensure C0 rev restreaming is off. This is normally done by
840 * the BIOS but in the odd case it is not the results are corruption
841 * hence the presence of a Linux check
842 */
Alan Cox1597cac2006-12-04 15:14:45 -0800843static void quirk_disable_pxb(struct pci_dev *pdev)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700844{
845 u16 config;
846 u8 rev;
847
848 pci_read_config_byte(pdev, PCI_REVISION_ID, &rev);
849 if (rev != 0x04) /* Only C0 requires this */
850 return;
851 pci_read_config_word(pdev, 0x40, &config);
852 if (config & (1<<6)) {
853 config &= ~(1<<6);
854 pci_write_config_word(pdev, 0x40, config);
855 printk(KERN_INFO "PCI: C0 revision 450NX. Disabling PCI restreaming.\n");
856 }
857}
858DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82454NX, quirk_disable_pxb );
Alan Cox1597cac2006-12-04 15:14:45 -0800859DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82454NX, quirk_disable_pxb );
Linus Torvalds1da177e2005-04-16 15:20:36 -0700860
Linus Torvalds1da177e2005-04-16 15:20:36 -0700861
Conke Huab174432006-12-19 13:11:37 -0800862static void __devinit quirk_sb600_sata(struct pci_dev *pdev)
863{
864 /* set sb600 sata to ahci mode */
865 if ((pdev->class >> 8) == PCI_CLASS_STORAGE_IDE) {
866 u8 tmp;
867
868 pci_read_config_byte(pdev, 0x40, &tmp);
869 pci_write_config_byte(pdev, 0x40, tmp|1);
870 pci_write_config_byte(pdev, 0x9, 1);
871 pci_write_config_byte(pdev, 0xa, 6);
872 pci_write_config_byte(pdev, 0x40, tmp);
873
Conke Huc9f89472007-01-09 05:32:51 -0500874 pdev->class = PCI_CLASS_STORAGE_SATA_AHCI;
Conke Huab174432006-12-19 13:11:37 -0800875 }
876}
877DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP600_SATA, quirk_sb600_sata);
Henry Su82377712007-05-10 22:48:50 -0700878DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP700_SATA, quirk_sb600_sata);
Conke Huab174432006-12-19 13:11:37 -0800879
Linus Torvalds1da177e2005-04-16 15:20:36 -0700880/*
881 * Serverworks CSB5 IDE does not fully support native mode
882 */
883static void __devinit quirk_svwks_csb5ide(struct pci_dev *pdev)
884{
885 u8 prog;
886 pci_read_config_byte(pdev, PCI_CLASS_PROG, &prog);
887 if (prog & 5) {
888 prog &= ~5;
889 pdev->class &= ~5;
890 pci_write_config_byte(pdev, PCI_CLASS_PROG, prog);
Alan Cox368c73d2006-10-04 00:41:26 +0100891 /* PCI layer will sort out resources */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700892 }
893}
Alan Cox368c73d2006-10-04 00:41:26 +0100894DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_CSB5IDE, quirk_svwks_csb5ide );
Linus Torvalds1da177e2005-04-16 15:20:36 -0700895
896/*
897 * Intel 82801CAM ICH3-M datasheet says IDE modes must be the same
898 */
899static void __init quirk_ide_samemode(struct pci_dev *pdev)
900{
901 u8 prog;
902
903 pci_read_config_byte(pdev, PCI_CLASS_PROG, &prog);
904
905 if (((prog & 1) && !(prog & 4)) || ((prog & 4) && !(prog & 1))) {
906 printk(KERN_INFO "PCI: IDE mode mismatch; forcing legacy mode\n");
907 prog &= ~5;
908 pdev->class &= ~5;
909 pci_write_config_byte(pdev, PCI_CLASS_PROG, prog);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700910 }
911}
Alan Cox368c73d2006-10-04 00:41:26 +0100912DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_10, quirk_ide_samemode);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700913
914/* This was originally an Alpha specific thing, but it really fits here.
915 * The i82375 PCI/EISA bridge appears as non-classified. Fix that.
916 */
917static void __init quirk_eisa_bridge(struct pci_dev *dev)
918{
919 dev->class = PCI_CLASS_BRIDGE_EISA << 8;
920}
921DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82375, quirk_eisa_bridge );
922
923/*
Johannes Goecke7daa0c42006-04-20 02:43:17 -0700924 * On the MSI-K8T-Neo2Fir Board, the internal Soundcard is disabled
925 * when a PCI-Soundcard is added. The BIOS only gives Options
926 * "Disabled" and "AUTO". This Quirk Sets the corresponding
927 * Register-Value to enable the Soundcard.
Chris Wedgwoodbd91fde2006-06-05 00:13:21 -0700928 *
929 * FIXME: Presently this quirk will run on anything that has an 8237
930 * which isn't correct, we need to check DMI tables or something in
931 * order to make sure it only runs on the MSI-K8T-Neo2Fir. Because it
932 * runs everywhere at present we suppress the printk output in most
933 * irrelevant cases.
Johannes Goecke7daa0c42006-04-20 02:43:17 -0700934 */
Alan Cox1597cac2006-12-04 15:14:45 -0800935static void k8t_sound_hostbridge(struct pci_dev *dev)
Johannes Goecke7daa0c42006-04-20 02:43:17 -0700936{
937 unsigned char val;
938
Johannes Goecke7daa0c42006-04-20 02:43:17 -0700939 pci_read_config_byte(dev, 0x50, &val);
940 if (val == 0x88 || val == 0xc8) {
Chris Wedgwoodbd91fde2006-06-05 00:13:21 -0700941 /* Assume it's probably a MSI-K8T-Neo2Fir */
942 printk(KERN_INFO "PCI: MSI-K8T-Neo2Fir, attempting to turn soundcard ON\n");
Johannes Goecke7daa0c42006-04-20 02:43:17 -0700943 pci_write_config_byte(dev, 0x50, val & (~0x40));
944
945 /* Verify the Change for Status output */
946 pci_read_config_byte(dev, 0x50, &val);
947 if (val & 0x40)
Chris Wedgwoodbd91fde2006-06-05 00:13:21 -0700948 printk(KERN_INFO "PCI: MSI-K8T-Neo2Fir, soundcard still off\n");
Johannes Goecke7daa0c42006-04-20 02:43:17 -0700949 else
Chris Wedgwoodbd91fde2006-06-05 00:13:21 -0700950 printk(KERN_INFO "PCI: MSI-K8T-Neo2Fir, soundcard on\n");
Johannes Goecke7daa0c42006-04-20 02:43:17 -0700951 }
Johannes Goecke7daa0c42006-04-20 02:43:17 -0700952}
953DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, k8t_sound_hostbridge);
Alan Cox1597cac2006-12-04 15:14:45 -0800954DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, k8t_sound_hostbridge);
Johannes Goecke7daa0c42006-04-20 02:43:17 -0700955
956/*
Linus Torvalds1da177e2005-04-16 15:20:36 -0700957 * On ASUS P4B boards, the SMBus PCI Device within the ICH2/4 southbridge
958 * is not activated. The myth is that Asus said that they do not want the
959 * users to be irritated by just another PCI Device in the Win98 device
960 * manager. (see the file prog/hotplug/README.p4b in the lm_sensors
961 * package 2.7.0 for details)
962 *
963 * The SMBus PCI Device can be activated by setting a bit in the ICH LPC
964 * bridge. Unfortunately, this device has no subvendor/subdevice ID. So it
965 * becomes necessary to do this tweak in two steps -- I've chosen the Host
966 * bridge as trigger.
Jean Delvare9208ee82007-03-24 16:56:44 +0100967 *
968 * Note that we used to unhide the SMBus that way on Toshiba laptops
969 * (Satellite A40 and Tecra M2) but then found that the thermal management
970 * was done by SMM code, which could cause unsynchronized concurrent
971 * accesses to the SMBus registers, with potentially bad effects. Thus you
972 * should be very careful when adding new entries: if SMM is accessing the
973 * Intel SMBus, this is a very good reason to leave it hidden.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700974 */
Vivek Goyal9d24a812007-01-11 01:52:44 +0100975static int asus_hides_smbus;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700976
977static void __init asus_hides_smbus_hostbridge(struct pci_dev *dev)
978{
979 if (unlikely(dev->subsystem_vendor == PCI_VENDOR_ID_ASUSTEK)) {
980 if (dev->device == PCI_DEVICE_ID_INTEL_82845_HB)
981 switch(dev->subsystem_device) {
Jean Delvarea00db372005-06-29 17:04:06 +0200982 case 0x8025: /* P4B-LX */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700983 case 0x8070: /* P4B */
984 case 0x8088: /* P4B533 */
985 case 0x1626: /* L3C notebook */
986 asus_hides_smbus = 1;
987 }
Jean Delvare2f2d39d2007-01-05 11:23:15 +0100988 else if (dev->device == PCI_DEVICE_ID_INTEL_82845G_HB)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700989 switch(dev->subsystem_device) {
990 case 0x80b1: /* P4GE-V */
991 case 0x80b2: /* P4PE */
992 case 0x8093: /* P4B533-V */
993 asus_hides_smbus = 1;
994 }
Jean Delvare2f2d39d2007-01-05 11:23:15 +0100995 else if (dev->device == PCI_DEVICE_ID_INTEL_82850_HB)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700996 switch(dev->subsystem_device) {
997 case 0x8030: /* P4T533 */
998 asus_hides_smbus = 1;
999 }
Jean Delvare2f2d39d2007-01-05 11:23:15 +01001000 else if (dev->device == PCI_DEVICE_ID_INTEL_7205_0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001001 switch (dev->subsystem_device) {
1002 case 0x8070: /* P4G8X Deluxe */
1003 asus_hides_smbus = 1;
1004 }
Jean Delvare2f2d39d2007-01-05 11:23:15 +01001005 else if (dev->device == PCI_DEVICE_ID_INTEL_E7501_MCH)
Jean Delvare321311a2006-07-31 08:53:15 +02001006 switch (dev->subsystem_device) {
1007 case 0x80c9: /* PU-DLS */
1008 asus_hides_smbus = 1;
1009 }
Jean Delvare2f2d39d2007-01-05 11:23:15 +01001010 else if (dev->device == PCI_DEVICE_ID_INTEL_82855GM_HB)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001011 switch (dev->subsystem_device) {
1012 case 0x1751: /* M2N notebook */
1013 case 0x1821: /* M5N notebook */
1014 asus_hides_smbus = 1;
1015 }
Jean Delvare2f2d39d2007-01-05 11:23:15 +01001016 else if (dev->device == PCI_DEVICE_ID_INTEL_82855PM_HB)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001017 switch (dev->subsystem_device) {
1018 case 0x184b: /* W1N notebook */
1019 case 0x186a: /* M6Ne notebook */
1020 asus_hides_smbus = 1;
1021 }
Jean Delvare2f2d39d2007-01-05 11:23:15 +01001022 else if (dev->device == PCI_DEVICE_ID_INTEL_82865_HB)
Jean Delvare2e457852007-01-05 09:17:56 +01001023 switch (dev->subsystem_device) {
1024 case 0x80f2: /* P4P800-X */
1025 asus_hides_smbus = 1;
1026 }
Jean Delvare2f2d39d2007-01-05 11:23:15 +01001027 else if (dev->device == PCI_DEVICE_ID_INTEL_82915GM_HB)
R.Marek@sh.cvut.czacc06632005-09-29 08:35:41 +00001028 switch (dev->subsystem_device) {
1029 case 0x1882: /* M6V notebook */
Jean Delvare2d1e1c72006-04-01 16:46:35 +02001030 case 0x1977: /* A6VA notebook */
R.Marek@sh.cvut.czacc06632005-09-29 08:35:41 +00001031 asus_hides_smbus = 1;
1032 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001033 } else if (unlikely(dev->subsystem_vendor == PCI_VENDOR_ID_HP)) {
1034 if (dev->device == PCI_DEVICE_ID_INTEL_82855PM_HB)
1035 switch(dev->subsystem_device) {
1036 case 0x088C: /* HP Compaq nc8000 */
1037 case 0x0890: /* HP Compaq nc6000 */
1038 asus_hides_smbus = 1;
1039 }
Jean Delvare2f2d39d2007-01-05 11:23:15 +01001040 else if (dev->device == PCI_DEVICE_ID_INTEL_82865_HB)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001041 switch (dev->subsystem_device) {
1042 case 0x12bc: /* HP D330L */
Jean Delvaree3b1bd52005-09-21 22:26:31 +02001043 case 0x12bd: /* HP D530 */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001044 asus_hides_smbus = 1;
1045 }
Jean Delvare2f2d39d2007-01-05 11:23:15 +01001046 else if (dev->device == PCI_DEVICE_ID_INTEL_82915GM_HB)
tomek@koprowski.org3c0a6542006-02-19 18:03:24 +01001047 switch (dev->subsystem_device) {
1048 case 0x099c: /* HP Compaq nx6110 */
1049 asus_hides_smbus = 1;
1050 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001051 } else if (unlikely(dev->subsystem_vendor == PCI_VENDOR_ID_SAMSUNG)) {
1052 if (dev->device == PCI_DEVICE_ID_INTEL_82855PM_HB)
1053 switch(dev->subsystem_device) {
1054 case 0xC00C: /* Samsung P35 notebook */
1055 asus_hides_smbus = 1;
1056 }
Rumen Ivanov Zarevc87f8832005-09-06 13:39:32 -07001057 } else if (unlikely(dev->subsystem_vendor == PCI_VENDOR_ID_COMPAQ)) {
1058 if (dev->device == PCI_DEVICE_ID_INTEL_82855PM_HB)
1059 switch(dev->subsystem_device) {
1060 case 0x0058: /* Compaq Evo N620c */
1061 asus_hides_smbus = 1;
1062 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001063 }
1064}
1065DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82845_HB, asus_hides_smbus_hostbridge );
1066DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82845G_HB, asus_hides_smbus_hostbridge );
1067DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82850_HB, asus_hides_smbus_hostbridge );
1068DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82865_HB, asus_hides_smbus_hostbridge );
1069DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_7205_0, asus_hides_smbus_hostbridge );
Jean Delvare321311a2006-07-31 08:53:15 +02001070DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7501_MCH, asus_hides_smbus_hostbridge );
Linus Torvalds1da177e2005-04-16 15:20:36 -07001071DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82855PM_HB, asus_hides_smbus_hostbridge );
1072DECLARE_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 +00001073DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82915GM_HB, asus_hides_smbus_hostbridge );
Linus Torvalds1da177e2005-04-16 15:20:36 -07001074
Alan Cox1597cac2006-12-04 15:14:45 -08001075static void asus_hides_smbus_lpc(struct pci_dev *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001076{
1077 u16 val;
1078
1079 if (likely(!asus_hides_smbus))
1080 return;
1081
1082 pci_read_config_word(dev, 0xF2, &val);
1083 if (val & 0x8) {
1084 pci_write_config_word(dev, 0xF2, val & (~0x8));
1085 pci_read_config_word(dev, 0xF2, &val);
1086 if (val & 0x8)
1087 printk(KERN_INFO "PCI: i801 SMBus device continues to play 'hide and seek'! 0x%x\n", val);
1088 else
1089 printk(KERN_INFO "PCI: Enabled i801 SMBus device\n");
1090 }
1091}
1092DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_0, asus_hides_smbus_lpc );
1093DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_0, asus_hides_smbus_lpc );
Jean Delvare321311a2006-07-31 08:53:15 +02001094DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_0, asus_hides_smbus_lpc );
Linus Torvalds1da177e2005-04-16 15:20:36 -07001095DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_12, asus_hides_smbus_lpc );
1096DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_12, asus_hides_smbus_lpc );
1097DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801EB_0, asus_hides_smbus_lpc );
Alan Cox1597cac2006-12-04 15:14:45 -08001098DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_0, asus_hides_smbus_lpc );
1099DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_0, asus_hides_smbus_lpc );
1100DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_0, asus_hides_smbus_lpc );
1101DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_12, asus_hides_smbus_lpc );
1102DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_12, asus_hides_smbus_lpc );
1103DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801EB_0, asus_hides_smbus_lpc );
Linus Torvalds1da177e2005-04-16 15:20:36 -07001104
Alan Cox1597cac2006-12-04 15:14:45 -08001105static void asus_hides_smbus_lpc_ich6(struct pci_dev *dev)
R.Marek@sh.cvut.czacc06632005-09-29 08:35:41 +00001106{
1107 u32 val, rcba;
1108 void __iomem *base;
1109
1110 if (likely(!asus_hides_smbus))
1111 return;
1112 pci_read_config_dword(dev, 0xF0, &rcba);
1113 base = ioremap_nocache(rcba & 0xFFFFC000, 0x4000); /* use bits 31:14, 16 kB aligned */
1114 if (base == NULL) return;
1115 val=readl(base + 0x3418); /* read the Function Disable register, dword mode only */
1116 writel(val & 0xFFFFFFF7, base + 0x3418); /* enable the SMBus device */
1117 iounmap(base);
1118 printk(KERN_INFO "PCI: Enabled ICH6/i801 SMBus device\n");
1119}
1120DECLARE_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 -08001121DECLARE_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 -07001122
Linus Torvalds1da177e2005-04-16 15:20:36 -07001123/*
1124 * SiS 96x south bridge: BIOS typically hides SMBus device...
1125 */
Alan Cox1597cac2006-12-04 15:14:45 -08001126static void quirk_sis_96x_smbus(struct pci_dev *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001127{
1128 u8 val = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001129 pci_read_config_byte(dev, 0x77, &val);
Mark M. Hoffman2f5c33b2007-01-08 22:11:29 -05001130 if (val & 0x10) {
1131 printk(KERN_INFO "Enabling SiS 96x SMBus.\n");
1132 pci_write_config_byte(dev, 0x77, val & ~0x10);
1133 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001134}
Adrian Bunkc30ca1d2006-12-19 05:13:15 +01001135DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_961, quirk_sis_96x_smbus );
1136DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_962, quirk_sis_96x_smbus );
1137DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_963, quirk_sis_96x_smbus );
1138DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_LPC, quirk_sis_96x_smbus );
1139DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_961, quirk_sis_96x_smbus );
1140DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_962, quirk_sis_96x_smbus );
1141DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_963, quirk_sis_96x_smbus );
1142DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_LPC, quirk_sis_96x_smbus );
Linus Torvalds1da177e2005-04-16 15:20:36 -07001143
Linus Torvalds1da177e2005-04-16 15:20:36 -07001144/*
1145 * ... This is further complicated by the fact that some SiS96x south
1146 * bridges pretend to be 85C503/5513 instead. In that case see if we
1147 * spotted a compatible north bridge to make sure.
1148 * (pci_find_device doesn't work yet)
1149 *
1150 * We can also enable the sis96x bit in the discovery register..
1151 */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001152#define SIS_DETECT_REGISTER 0x40
1153
Alan Cox1597cac2006-12-04 15:14:45 -08001154static void quirk_sis_503(struct pci_dev *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001155{
1156 u8 reg;
1157 u16 devid;
1158
1159 pci_read_config_byte(dev, SIS_DETECT_REGISTER, &reg);
1160 pci_write_config_byte(dev, SIS_DETECT_REGISTER, reg | (1 << 6));
1161 pci_read_config_word(dev, PCI_DEVICE_ID, &devid);
1162 if (((devid & 0xfff0) != 0x0960) && (devid != 0x0018)) {
1163 pci_write_config_byte(dev, SIS_DETECT_REGISTER, reg);
1164 return;
1165 }
1166
Linus Torvalds1da177e2005-04-16 15:20:36 -07001167 /*
Mark M. Hoffman2f5c33b2007-01-08 22:11:29 -05001168 * Ok, it now shows up as a 96x.. run the 96x quirk by
1169 * hand in case it has already been processed.
1170 * (depends on link order, which is apparently not guaranteed)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001171 */
1172 dev->device = devid;
Mark M. Hoffman2f5c33b2007-01-08 22:11:29 -05001173 quirk_sis_96x_smbus(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001174}
Adrian Bunkc30ca1d2006-12-19 05:13:15 +01001175DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_503, quirk_sis_503 );
1176DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_503, quirk_sis_503 );
Linus Torvalds1da177e2005-04-16 15:20:36 -07001177
Linus Torvalds1da177e2005-04-16 15:20:36 -07001178
Bauke Jan Doumae5548e92006-02-28 21:44:36 +01001179/*
1180 * On ASUS A8V and A8V Deluxe boards, the onboard AC97 audio controller
1181 * and MC97 modem controller are disabled when a second PCI soundcard is
1182 * present. This patch, tweaking the VT8237 ISA bridge, enables them.
1183 * -- bjd
1184 */
Alan Cox1597cac2006-12-04 15:14:45 -08001185static void asus_hides_ac97_lpc(struct pci_dev *dev)
Bauke Jan Doumae5548e92006-02-28 21:44:36 +01001186{
1187 u8 val;
1188 int asus_hides_ac97 = 0;
1189
1190 if (likely(dev->subsystem_vendor == PCI_VENDOR_ID_ASUSTEK)) {
1191 if (dev->device == PCI_DEVICE_ID_VIA_8237)
1192 asus_hides_ac97 = 1;
1193 }
1194
1195 if (!asus_hides_ac97)
1196 return;
1197
1198 pci_read_config_byte(dev, 0x50, &val);
1199 if (val & 0xc0) {
1200 pci_write_config_byte(dev, 0x50, val & (~0xc0));
1201 pci_read_config_byte(dev, 0x50, &val);
1202 if (val & 0xc0)
1203 printk(KERN_INFO "PCI: onboard AC97/MC97 devices continue to play 'hide and seek'! 0x%x\n", val);
1204 else
1205 printk(KERN_INFO "PCI: enabled onboard AC97/MC97 devices\n");
1206 }
1207}
1208DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, asus_hides_ac97_lpc );
Alan Cox1597cac2006-12-04 15:14:45 -08001209DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, asus_hides_ac97_lpc );
1210
Tejun Heo77967052006-08-19 03:54:39 +09001211#if defined(CONFIG_ATA) || defined(CONFIG_ATA_MODULE)
Alan Cox15e0c692006-07-12 15:05:41 +01001212
1213/*
1214 * If we are using libata we can drive this chip properly but must
1215 * do this early on to make the additional device appear during
1216 * the PCI scanning.
1217 */
Tejun Heo5ee2ae72007-02-26 20:16:13 +09001218static void quirk_jmicron_ata(struct pci_dev *pdev)
Alan Cox15e0c692006-07-12 15:05:41 +01001219{
Tejun Heoe34bb372007-02-26 20:24:03 +09001220 u32 conf1, conf5, class;
Alan Cox15e0c692006-07-12 15:05:41 +01001221 u8 hdr;
1222
1223 /* Only poke fn 0 */
1224 if (PCI_FUNC(pdev->devfn))
1225 return;
1226
Tejun Heo5ee2ae72007-02-26 20:16:13 +09001227 pci_read_config_dword(pdev, 0x40, &conf1);
1228 pci_read_config_dword(pdev, 0x80, &conf5);
Alan Cox15e0c692006-07-12 15:05:41 +01001229
Tejun Heo5ee2ae72007-02-26 20:16:13 +09001230 conf1 &= ~0x00CFF302; /* Clear bit 1, 8, 9, 12-19, 22, 23 */
1231 conf5 &= ~(1 << 24); /* Clear bit 24 */
Alan Cox15e0c692006-07-12 15:05:41 +01001232
Tejun Heo5ee2ae72007-02-26 20:16:13 +09001233 switch (pdev->device) {
1234 case PCI_DEVICE_ID_JMICRON_JMB360:
1235 /* The controller should be in single function ahci mode */
1236 conf1 |= 0x0002A100; /* Set 8, 13, 15, 17 */
1237 break;
Alan Cox15e0c692006-07-12 15:05:41 +01001238
Tejun Heo5ee2ae72007-02-26 20:16:13 +09001239 case PCI_DEVICE_ID_JMICRON_JMB365:
1240 case PCI_DEVICE_ID_JMICRON_JMB366:
1241 /* Redirect IDE second PATA port to the right spot */
1242 conf5 |= (1 << 24);
1243 /* Fall through */
1244 case PCI_DEVICE_ID_JMICRON_JMB361:
1245 case PCI_DEVICE_ID_JMICRON_JMB363:
1246 /* Enable dual function mode, AHCI on fn 0, IDE fn1 */
1247 /* Set the class codes correctly and then direct IDE 0 */
1248 conf1 |= 0x00C2A102; /* Set 1, 8, 13, 15, 17, 22, 23 */
1249 break;
1250
1251 case PCI_DEVICE_ID_JMICRON_JMB368:
1252 /* The controller should be in single function IDE mode */
1253 conf1 |= 0x00C00000; /* Set 22, 23 */
1254 break;
Alan Cox15e0c692006-07-12 15:05:41 +01001255 }
Tejun Heo5ee2ae72007-02-26 20:16:13 +09001256
1257 pci_write_config_dword(pdev, 0x40, conf1);
1258 pci_write_config_dword(pdev, 0x80, conf5);
1259
1260 /* Update pdev accordingly */
1261 pci_read_config_byte(pdev, PCI_HEADER_TYPE, &hdr);
1262 pdev->hdr_type = hdr & 0x7f;
1263 pdev->multifunction = !!(hdr & 0x80);
Tejun Heoe34bb372007-02-26 20:24:03 +09001264
1265 pci_read_config_dword(pdev, PCI_CLASS_REVISION, &class);
1266 pdev->class = class >> 8;
Alan Cox15e0c692006-07-12 15:05:41 +01001267}
Tejun Heo5ee2ae72007-02-26 20:16:13 +09001268DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB360, quirk_jmicron_ata);
1269DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB361, quirk_jmicron_ata);
1270DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB363, quirk_jmicron_ata);
1271DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB365, quirk_jmicron_ata);
1272DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB366, quirk_jmicron_ata);
1273DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB368, quirk_jmicron_ata);
1274DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB360, quirk_jmicron_ata);
1275DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB361, quirk_jmicron_ata);
1276DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB363, quirk_jmicron_ata);
1277DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB365, quirk_jmicron_ata);
1278DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB366, quirk_jmicron_ata);
1279DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB368, quirk_jmicron_ata);
Alan Cox15e0c692006-07-12 15:05:41 +01001280
1281#endif
1282
Linus Torvalds1da177e2005-04-16 15:20:36 -07001283#ifdef CONFIG_X86_IO_APIC
1284static void __init quirk_alder_ioapic(struct pci_dev *pdev)
1285{
1286 int i;
1287
1288 if ((pdev->class >> 8) != 0xff00)
1289 return;
1290
1291 /* the first BAR is the location of the IO APIC...we must
1292 * not touch this (and it's already covered by the fixmap), so
1293 * forcibly insert it into the resource tree */
1294 if (pci_resource_start(pdev, 0) && pci_resource_len(pdev, 0))
1295 insert_resource(&iomem_resource, &pdev->resource[0]);
1296
1297 /* The next five BARs all seem to be rubbish, so just clean
1298 * them out */
1299 for (i=1; i < 6; i++) {
1300 memset(&pdev->resource[i], 0, sizeof(pdev->resource[i]));
1301 }
1302
1303}
1304DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_EESSC, quirk_alder_ioapic );
1305#endif
1306
Linus Torvalds1da177e2005-04-16 15:20:36 -07001307int pcie_mch_quirk;
Adrian Bunkc30ca1d2006-12-19 05:13:15 +01001308EXPORT_SYMBOL(pcie_mch_quirk);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001309
1310static void __devinit quirk_pcie_mch(struct pci_dev *pdev)
1311{
1312 pcie_mch_quirk = 1;
1313}
1314DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7520_MCH, quirk_pcie_mch );
1315DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7320_MCH, quirk_pcie_mch );
1316DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7525_MCH, quirk_pcie_mch );
1317
Kristen Accardi4602b882005-08-16 15:15:58 -07001318
1319/*
1320 * It's possible for the MSI to get corrupted if shpc and acpi
1321 * are used together on certain PXH-based systems.
1322 */
1323static void __devinit quirk_pcie_pxh(struct pci_dev *dev)
1324{
Eric W. Biedermanf5f2b132007-03-05 00:30:07 -08001325 pci_msi_off(dev);
1326
Kristen Accardi4602b882005-08-16 15:15:58 -07001327 dev->no_msi = 1;
1328
1329 printk(KERN_WARNING "PCI: PXH quirk detected, "
1330 "disabling MSI for SHPC device\n");
1331}
1332DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXHD_0, quirk_pcie_pxh);
1333DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXHD_1, quirk_pcie_pxh);
1334DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_0, quirk_pcie_pxh);
1335DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_1, quirk_pcie_pxh);
1336DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXHV, quirk_pcie_pxh);
1337
Kristen Carlson Accardiffadcc22006-07-12 08:59:00 -07001338/*
1339 * Some Intel PCI Express chipsets have trouble with downstream
1340 * device power management.
1341 */
1342static void quirk_intel_pcie_pm(struct pci_dev * dev)
1343{
1344 pci_pm_d3_delay = 120;
1345 dev->no_d1d2 = 1;
1346}
1347
1348DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e2, quirk_intel_pcie_pm);
1349DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e3, quirk_intel_pcie_pm);
1350DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e4, quirk_intel_pcie_pm);
1351DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e5, quirk_intel_pcie_pm);
1352DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e6, quirk_intel_pcie_pm);
1353DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e7, quirk_intel_pcie_pm);
1354DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25f7, quirk_intel_pcie_pm);
1355DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25f8, quirk_intel_pcie_pm);
1356DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25f9, quirk_intel_pcie_pm);
1357DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25fa, quirk_intel_pcie_pm);
1358DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2601, quirk_intel_pcie_pm);
1359DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2602, quirk_intel_pcie_pm);
1360DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2603, quirk_intel_pcie_pm);
1361DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2604, quirk_intel_pcie_pm);
1362DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2605, quirk_intel_pcie_pm);
1363DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2606, quirk_intel_pcie_pm);
1364DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2607, quirk_intel_pcie_pm);
1365DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2608, quirk_intel_pcie_pm);
1366DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2609, quirk_intel_pcie_pm);
1367DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x260a, quirk_intel_pcie_pm);
1368DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x260b, quirk_intel_pcie_pm);
Kristen Accardi4602b882005-08-16 15:15:58 -07001369
Sergei Shtylyov33dced22007-02-07 18:18:45 +01001370/*
1371 * Toshiba TC86C001 IDE controller reports the standard 8-byte BAR0 size
1372 * but the PIO transfers won't work if BAR0 falls at the odd 8 bytes.
1373 * Re-allocate the region if needed...
1374 */
1375static void __init quirk_tc86c001_ide(struct pci_dev *dev)
1376{
1377 struct resource *r = &dev->resource[0];
1378
1379 if (r->start & 0x8) {
1380 r->start = 0;
1381 r->end = 0xf;
1382 }
1383}
1384DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_TOSHIBA_2,
1385 PCI_DEVICE_ID_TOSHIBA_TC86C001_IDE,
1386 quirk_tc86c001_ide);
1387
Linus Torvalds1da177e2005-04-16 15:20:36 -07001388static void __devinit quirk_netmos(struct pci_dev *dev)
1389{
1390 unsigned int num_parallel = (dev->subsystem_device & 0xf0) >> 4;
1391 unsigned int num_serial = dev->subsystem_device & 0xf;
1392
1393 /*
1394 * These Netmos parts are multiport serial devices with optional
1395 * parallel ports. Even when parallel ports are present, they
1396 * are identified as class SERIAL, which means the serial driver
1397 * will claim them. To prevent this, mark them as class OTHER.
1398 * These combo devices should be claimed by parport_serial.
1399 *
1400 * The subdevice ID is of the form 0x00PS, where <P> is the number
1401 * of parallel ports and <S> is the number of serial ports.
1402 */
1403 switch (dev->device) {
1404 case PCI_DEVICE_ID_NETMOS_9735:
1405 case PCI_DEVICE_ID_NETMOS_9745:
1406 case PCI_DEVICE_ID_NETMOS_9835:
1407 case PCI_DEVICE_ID_NETMOS_9845:
1408 case PCI_DEVICE_ID_NETMOS_9855:
1409 if ((dev->class >> 8) == PCI_CLASS_COMMUNICATION_SERIAL &&
1410 num_parallel) {
1411 printk(KERN_INFO "PCI: Netmos %04x (%u parallel, "
1412 "%u serial); changing class SERIAL to OTHER "
1413 "(use parport_serial)\n",
1414 dev->device, num_parallel, num_serial);
1415 dev->class = (PCI_CLASS_COMMUNICATION_OTHER << 8) |
1416 (dev->class & 0xff);
1417 }
1418 }
1419}
1420DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NETMOS, PCI_ANY_ID, quirk_netmos);
1421
Bjorn Helgaas16a74742006-04-05 08:47:00 -04001422static void __devinit quirk_e100_interrupt(struct pci_dev *dev)
1423{
1424 u16 command;
1425 u32 bar;
1426 u8 __iomem *csr;
1427 u8 cmd_hi;
1428
1429 switch (dev->device) {
1430 /* PCI IDs taken from drivers/net/e100.c */
1431 case 0x1029:
1432 case 0x1030 ... 0x1034:
1433 case 0x1038 ... 0x103E:
1434 case 0x1050 ... 0x1057:
1435 case 0x1059:
1436 case 0x1064 ... 0x106B:
1437 case 0x1091 ... 0x1095:
1438 case 0x1209:
1439 case 0x1229:
1440 case 0x2449:
1441 case 0x2459:
1442 case 0x245D:
1443 case 0x27DC:
1444 break;
1445 default:
1446 return;
1447 }
1448
1449 /*
1450 * Some firmware hands off the e100 with interrupts enabled,
1451 * which can cause a flood of interrupts if packets are
1452 * received before the driver attaches to the device. So
1453 * disable all e100 interrupts here. The driver will
1454 * re-enable them when it's ready.
1455 */
1456 pci_read_config_word(dev, PCI_COMMAND, &command);
1457 pci_read_config_dword(dev, PCI_BASE_ADDRESS_0, &bar);
1458
1459 if (!(command & PCI_COMMAND_MEMORY) || !bar)
1460 return;
1461
1462 csr = ioremap(bar, 8);
1463 if (!csr) {
1464 printk(KERN_WARNING "PCI: Can't map %s e100 registers\n",
1465 pci_name(dev));
1466 return;
1467 }
1468
1469 cmd_hi = readb(csr + 3);
1470 if (cmd_hi == 0) {
1471 printk(KERN_WARNING "PCI: Firmware left %s e100 interrupts "
1472 "enabled, disabling\n", pci_name(dev));
1473 writeb(1, csr + 3);
1474 }
1475
1476 iounmap(csr);
1477}
1478DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_ANY_ID, quirk_e100_interrupt);
Ivan Kokshayskya5312e22005-11-01 01:43:56 +03001479
1480static void __devinit fixup_rev1_53c810(struct pci_dev* dev)
1481{
1482 /* rev 1 ncr53c810 chips don't set the class at all which means
1483 * they don't get their resources remapped. Fix that here.
1484 */
1485
1486 if (dev->class == PCI_CLASS_NOT_DEFINED) {
1487 printk(KERN_INFO "NCR 53c810 rev 1 detected, setting PCI class.\n");
1488 dev->class = PCI_CLASS_STORAGE_SCSI;
1489 }
1490}
1491DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NCR, PCI_DEVICE_ID_NCR_53C810, fixup_rev1_53c810);
1492
Linus Torvalds1da177e2005-04-16 15:20:36 -07001493static void pci_do_fixups(struct pci_dev *dev, struct pci_fixup *f, struct pci_fixup *end)
1494{
1495 while (f < end) {
1496 if ((f->vendor == dev->vendor || f->vendor == (u16) PCI_ANY_ID) &&
1497 (f->device == dev->device || f->device == (u16) PCI_ANY_ID)) {
1498 pr_debug("PCI: Calling quirk %p for %s\n", f->hook, pci_name(dev));
1499 f->hook(dev);
1500 }
1501 f++;
1502 }
1503}
1504
1505extern struct pci_fixup __start_pci_fixups_early[];
1506extern struct pci_fixup __end_pci_fixups_early[];
1507extern struct pci_fixup __start_pci_fixups_header[];
1508extern struct pci_fixup __end_pci_fixups_header[];
1509extern struct pci_fixup __start_pci_fixups_final[];
1510extern struct pci_fixup __end_pci_fixups_final[];
1511extern struct pci_fixup __start_pci_fixups_enable[];
1512extern struct pci_fixup __end_pci_fixups_enable[];
Alan Cox1597cac2006-12-04 15:14:45 -08001513extern struct pci_fixup __start_pci_fixups_resume[];
1514extern struct pci_fixup __end_pci_fixups_resume[];
Linus Torvalds1da177e2005-04-16 15:20:36 -07001515
1516
1517void pci_fixup_device(enum pci_fixup_pass pass, struct pci_dev *dev)
1518{
1519 struct pci_fixup *start, *end;
1520
1521 switch(pass) {
1522 case pci_fixup_early:
1523 start = __start_pci_fixups_early;
1524 end = __end_pci_fixups_early;
1525 break;
1526
1527 case pci_fixup_header:
1528 start = __start_pci_fixups_header;
1529 end = __end_pci_fixups_header;
1530 break;
1531
1532 case pci_fixup_final:
1533 start = __start_pci_fixups_final;
1534 end = __end_pci_fixups_final;
1535 break;
1536
1537 case pci_fixup_enable:
1538 start = __start_pci_fixups_enable;
1539 end = __end_pci_fixups_enable;
1540 break;
1541
Alan Cox1597cac2006-12-04 15:14:45 -08001542 case pci_fixup_resume:
1543 start = __start_pci_fixups_resume;
1544 end = __end_pci_fixups_resume;
1545 break;
1546
Linus Torvalds1da177e2005-04-16 15:20:36 -07001547 default:
1548 /* stupid compiler warning, you would think with an enum... */
1549 return;
1550 }
1551 pci_do_fixups(dev, start, end);
1552}
Adrian Bunkc30ca1d2006-12-19 05:13:15 +01001553EXPORT_SYMBOL(pci_fixup_device);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001554
Daniel Yeisley9d265122005-12-05 07:06:43 -05001555/* Enable 1k I/O space granularity on the Intel P64H2 */
1556static void __devinit quirk_p64h2_1k_io(struct pci_dev *dev)
1557{
1558 u16 en1k;
1559 u8 io_base_lo, io_limit_lo;
1560 unsigned long base, limit;
1561 struct resource *res = dev->resource + PCI_BRIDGE_RESOURCES;
1562
1563 pci_read_config_word(dev, 0x40, &en1k);
1564
1565 if (en1k & 0x200) {
1566 printk(KERN_INFO "PCI: Enable I/O Space to 1 KB Granularity\n");
1567
1568 pci_read_config_byte(dev, PCI_IO_BASE, &io_base_lo);
1569 pci_read_config_byte(dev, PCI_IO_LIMIT, &io_limit_lo);
1570 base = (io_base_lo & (PCI_IO_RANGE_MASK | 0x0c)) << 8;
1571 limit = (io_limit_lo & (PCI_IO_RANGE_MASK | 0x0c)) << 8;
1572
1573 if (base <= limit) {
1574 res->start = base;
1575 res->end = limit + 0x3ff;
1576 }
1577 }
1578}
1579DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x1460, quirk_p64h2_1k_io);
1580
Daniel Yeisley15a260d2006-12-21 14:34:57 -05001581/* Fix the IOBL_ADR for 1k I/O space granularity on the Intel P64H2
1582 * The IOBL_ADR gets re-written to 4k boundaries in pci_setup_bridge()
1583 * in drivers/pci/setup-bus.c
1584 */
1585static void __devinit quirk_p64h2_1k_io_fix_iobl(struct pci_dev *dev)
1586{
1587 u16 en1k, iobl_adr, iobl_adr_1k;
1588 struct resource *res = dev->resource + PCI_BRIDGE_RESOURCES;
1589
1590 pci_read_config_word(dev, 0x40, &en1k);
1591
1592 if (en1k & 0x200) {
1593 pci_read_config_word(dev, PCI_IO_BASE, &iobl_adr);
1594
1595 iobl_adr_1k = iobl_adr | (res->start >> 8) | (res->end & 0xfc00);
1596
1597 if (iobl_adr != iobl_adr_1k) {
1598 printk(KERN_INFO "PCI: Fixing P64H2 IOBL_ADR from 0x%x to 0x%x for 1 KB Granularity\n",
1599 iobl_adr,iobl_adr_1k);
1600 pci_write_config_word(dev, PCI_IO_BASE, iobl_adr_1k);
1601 }
1602 }
1603}
1604DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x1460, quirk_p64h2_1k_io_fix_iobl);
1605
Brice Goglincf34a8e2006-06-13 14:35:42 -04001606/* Under some circumstances, AER is not linked with extended capabilities.
1607 * Force it to be linked by setting the corresponding control bit in the
1608 * config space.
1609 */
Alan Cox1597cac2006-12-04 15:14:45 -08001610static void quirk_nvidia_ck804_pcie_aer_ext_cap(struct pci_dev *dev)
Brice Goglincf34a8e2006-06-13 14:35:42 -04001611{
1612 uint8_t b;
1613 if (pci_read_config_byte(dev, 0xf41, &b) == 0) {
1614 if (!(b & 0x20)) {
1615 pci_write_config_byte(dev, 0xf41, b | 0x20);
1616 printk(KERN_INFO
1617 "PCI: Linking AER extended capability on %s\n",
1618 pci_name(dev));
1619 }
1620 }
1621}
1622DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_CK804_PCIE,
1623 quirk_nvidia_ck804_pcie_aer_ext_cap);
Alan Cox1597cac2006-12-04 15:14:45 -08001624DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_CK804_PCIE,
1625 quirk_nvidia_ck804_pcie_aer_ext_cap);
Brice Goglincf34a8e2006-06-13 14:35:42 -04001626
Brice Goglin3f79e102006-08-31 01:54:56 -04001627#ifdef CONFIG_PCI_MSI
Brice Goglin3f79e102006-08-31 01:54:56 -04001628/* The Serverworks PCI-X chipset does not support MSI. We cannot easily rely
1629 * on setting PCI_BUS_FLAGS_NO_MSI in its bus flags because there are actually
1630 * some other busses controlled by the chipset even if Linux is not aware of it.
1631 * Instead of setting the flag on all busses in the machine, simply disable MSI
1632 * globally.
1633 */
1634static void __init quirk_svw_msi(struct pci_dev *dev)
1635{
Michael Ellerman88187df2007-01-25 19:34:07 +11001636 pci_no_msi();
1637 printk(KERN_WARNING "PCI: MSI quirk detected. MSI deactivated.\n");
Brice Goglin3f79e102006-08-31 01:54:56 -04001638}
1639DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_GCNB_LE, quirk_svw_msi);
1640
1641/* Disable MSI on chipsets that are known to not support it */
1642static void __devinit quirk_disable_msi(struct pci_dev *dev)
1643{
1644 if (dev->subordinate) {
1645 printk(KERN_WARNING "PCI: MSI quirk detected. "
1646 "PCI_BUS_FLAGS_NO_MSI set for %s subordinate bus.\n",
1647 pci_name(dev));
1648 dev->subordinate->bus_flags |= PCI_BUS_FLAGS_NO_MSI;
1649 }
1650}
1651DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8131_BRIDGE, quirk_disable_msi);
Tejun Heoc0affe92007-04-16 13:59:18 +09001652DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RS400_200, quirk_disable_msi);
1653DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RS480, quirk_disable_msi);
Brice Goglin6397c752006-08-31 01:55:32 -04001654
1655/* Go through the list of Hypertransport capabilities and
1656 * return 1 if a HT MSI capability is found and enabled */
1657static int __devinit msi_ht_cap_enabled(struct pci_dev *dev)
1658{
Michael Ellerman7a380502006-11-22 18:26:21 +11001659 int pos, ttl = 48;
1660
1661 pos = pci_find_ht_capability(dev, HT_CAPTYPE_MSI_MAPPING);
1662 while (pos && ttl--) {
1663 u8 flags;
1664
1665 if (pci_read_config_byte(dev, pos + HT_MSI_FLAGS,
1666 &flags) == 0)
1667 {
1668 printk(KERN_INFO "PCI: Found %s HT MSI Mapping on %s\n",
1669 flags & HT_MSI_FLAGS_ENABLE ?
1670 "enabled" : "disabled", pci_name(dev));
1671 return (flags & HT_MSI_FLAGS_ENABLE) != 0;
Brice Goglin6397c752006-08-31 01:55:32 -04001672 }
Michael Ellerman7a380502006-11-22 18:26:21 +11001673
1674 pos = pci_find_next_ht_capability(dev, pos,
1675 HT_CAPTYPE_MSI_MAPPING);
Brice Goglin6397c752006-08-31 01:55:32 -04001676 }
1677 return 0;
1678}
1679
1680/* Check the hypertransport MSI mapping to know whether MSI is enabled or not */
1681static void __devinit quirk_msi_ht_cap(struct pci_dev *dev)
1682{
1683 if (dev->subordinate && !msi_ht_cap_enabled(dev)) {
1684 printk(KERN_WARNING "PCI: MSI quirk detected. "
1685 "MSI disabled on chipset %s.\n",
1686 pci_name(dev));
1687 dev->subordinate->bus_flags |= PCI_BUS_FLAGS_NO_MSI;
1688 }
1689}
1690DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_HT2000_PCIE,
1691 quirk_msi_ht_cap);
1692
1693/* The nVidia CK804 chipset may have 2 HT MSI mappings.
1694 * MSI are supported if the MSI capability set in any of these mappings.
1695 */
1696static void __devinit quirk_nvidia_ck804_msi_ht_cap(struct pci_dev *dev)
1697{
1698 struct pci_dev *pdev;
1699
1700 if (!dev->subordinate)
1701 return;
1702
1703 /* check HT MSI cap on this chipset and the root one.
1704 * a single one having MSI is enough to be sure that MSI are supported.
1705 */
Alan Cox11f242f2006-10-10 14:39:00 -07001706 pdev = pci_get_slot(dev->bus, 0);
Jesper Juhl9ac0ce82006-12-04 15:14:48 -08001707 if (!pdev)
1708 return;
David Rientjes0c875c22006-12-03 11:55:34 -08001709 if (!msi_ht_cap_enabled(dev) && !msi_ht_cap_enabled(pdev)) {
Brice Goglin6397c752006-08-31 01:55:32 -04001710 printk(KERN_WARNING "PCI: MSI quirk detected. "
1711 "MSI disabled on chipset %s.\n",
1712 pci_name(dev));
1713 dev->subordinate->bus_flags |= PCI_BUS_FLAGS_NO_MSI;
1714 }
Alan Cox11f242f2006-10-10 14:39:00 -07001715 pci_dev_put(pdev);
Brice Goglin6397c752006-08-31 01:55:32 -04001716}
1717DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_CK804_PCIE,
1718 quirk_nvidia_ck804_msi_ht_cap);
Brice Goglin3f79e102006-08-31 01:54:56 -04001719#endif /* CONFIG_PCI_MSI */