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.
6 * Note: any quirks for hotpluggable devices must _NOT_ be declared __init.
8 * Copyright (c) 1999 Martin Mares <mj@ucw.cz>
10 * Init/reset quirks for USB host controllers should be in the
11 * USB quirks file, where their drivers can access reuse it.
13 * The bridge optimization stuff has been removed. If you really
14 * have a silly BIOS which is unable to set your host bridge right,
15 * use the PowerTweak utility (see http://powertweak.sourceforge.net).
18 #include <linux/types.h>
19 #include <linux/kernel.h>
20 #include <linux/pci.h>
21 #include <linux/init.h>
22 #include <linux/delay.h>
23 #include <linux/acpi.h>
24 #include <linux/kallsyms.h>
27 int isa_dma_bridge_buggy;
28 EXPORT_SYMBOL(isa_dma_bridge_buggy);
30 EXPORT_SYMBOL(pci_pci_problems);
32 EXPORT_SYMBOL(pcie_mch_quirk);
34 #ifdef CONFIG_PCI_QUIRKS
35 /* The Mellanox Tavor device gives false positive parity errors
36 * Mark this device with a broken_parity_status, to allow
37 * PCI scanning code to "skip" this now blacklisted device.
39 static void __devinit quirk_mellanox_tavor(struct pci_dev *dev)
41 dev->broken_parity_status = 1; /* This device gives false positives */
43 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_MELLANOX,PCI_DEVICE_ID_MELLANOX_TAVOR,quirk_mellanox_tavor);
44 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_MELLANOX,PCI_DEVICE_ID_MELLANOX_TAVOR_BRIDGE,quirk_mellanox_tavor);
46 /* Many VIA bridges seem to corrupt data for DAC. Disable it here */
47 int forbid_dac __read_mostly;
48 EXPORT_SYMBOL(forbid_dac);
50 static __devinit void via_no_dac(struct pci_dev *dev)
52 if ((dev->class >> 8) == PCI_CLASS_BRIDGE_PCI && forbid_dac == 0) {
54 "VIA PCI bridge detected. Disabling DAC.\n");
58 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_ANY_ID, via_no_dac);
60 /* Deal with broken BIOS'es that neglect to enable passive release,
61 which can cause problems in combination with the 82441FX/PPro MTRRs */
62 static void quirk_passive_release(struct pci_dev *dev)
64 struct pci_dev *d = NULL;
67 /* We have to make sure a particular bit is set in the PIIX3
68 ISA bridge, so we have to go out and find it. */
69 while ((d = pci_get_device(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82371SB_0, d))) {
70 pci_read_config_byte(d, 0x82, &dlc);
72 dev_err(&d->dev, "PIIX3: Enabling Passive Release\n");
74 pci_write_config_byte(d, 0x82, dlc);
78 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82441, quirk_passive_release);
79 DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82441, quirk_passive_release);
81 /* The VIA VP2/VP3/MVP3 seem to have some 'features'. There may be a workaround
82 but VIA don't answer queries. If you happen to have good contacts at VIA
83 ask them for me please -- Alan
85 This appears to be BIOS not version dependent. So presumably there is a
88 static void __devinit quirk_isa_dma_hangs(struct pci_dev *dev)
90 if (!isa_dma_bridge_buggy) {
91 isa_dma_bridge_buggy=1;
92 dev_info(&dev->dev, "Activating ISA DMA hang workarounds\n");
96 * Its not totally clear which chipsets are the problematic ones
97 * We know 82C586 and 82C596 variants are affected.
99 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C586_0, quirk_isa_dma_hangs);
100 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C596, quirk_isa_dma_hangs);
101 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82371SB_0, quirk_isa_dma_hangs);
102 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1533, quirk_isa_dma_hangs);
103 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NEC, PCI_DEVICE_ID_NEC_CBUS_1, quirk_isa_dma_hangs);
104 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NEC, PCI_DEVICE_ID_NEC_CBUS_2, quirk_isa_dma_hangs);
105 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NEC, PCI_DEVICE_ID_NEC_CBUS_3, quirk_isa_dma_hangs);
108 * Chipsets where PCI->PCI transfers vanish or hang
110 static void __devinit quirk_nopcipci(struct pci_dev *dev)
112 if ((pci_pci_problems & PCIPCI_FAIL)==0) {
113 dev_info(&dev->dev, "Disabling direct PCI/PCI transfers\n");
114 pci_pci_problems |= PCIPCI_FAIL;
117 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_5597, quirk_nopcipci);
118 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_496, quirk_nopcipci);
120 static void __devinit quirk_nopciamd(struct pci_dev *dev)
123 pci_read_config_byte(dev, 0x08, &rev);
126 dev_info(&dev->dev, "Chipset erratum: Disabling direct PCI/AGP transfers\n");
127 pci_pci_problems |= PCIAGP_FAIL;
130 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8151_0, quirk_nopciamd);
133 * Triton requires workarounds to be used by the drivers
135 static void __devinit quirk_triton(struct pci_dev *dev)
137 if ((pci_pci_problems&PCIPCI_TRITON)==0) {
138 dev_info(&dev->dev, "Limiting direct PCI/PCI transfers\n");
139 pci_pci_problems |= PCIPCI_TRITON;
142 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82437, quirk_triton);
143 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82437VX, quirk_triton);
144 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82439, quirk_triton);
145 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82439TX, quirk_triton);
148 * VIA Apollo KT133 needs PCI latency patch
149 * Made according to a windows driver based patch by George E. Breese
150 * see PCI Latency Adjust on http://www.viahardware.com/download/viatweak.shtm
151 * Also see http://www.au-ja.org/review-kt133a-1-en.phtml for
152 * the info on which Mr Breese based his work.
154 * Updated based on further information from the site and also on
155 * information provided by VIA
157 static void quirk_vialatency(struct pci_dev *dev)
161 /* Ok we have a potential problem chipset here. Now see if we have
162 a buggy southbridge */
164 p = pci_get_device(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686, NULL);
166 /* 0x40 - 0x4f == 686B, 0x10 - 0x2f == 686A; thanks Dan Hollis */
167 /* Check for buggy part revisions */
168 if (p->revision < 0x40 || p->revision > 0x42)
171 p = pci_get_device(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8231, NULL);
172 if (p==NULL) /* No problem parts */
174 /* Check for buggy part revisions */
175 if (p->revision < 0x10 || p->revision > 0x12)
180 * Ok we have the problem. Now set the PCI master grant to
181 * occur every master grant. The apparent bug is that under high
182 * PCI load (quite common in Linux of course) you can get data
183 * loss when the CPU is held off the bus for 3 bus master requests
184 * This happens to include the IDE controllers....
186 * VIA only apply this fix when an SB Live! is present but under
187 * both Linux and Windows this isnt enough, and we have seen
188 * corruption without SB Live! but with things like 3 UDMA IDE
189 * controllers. So we ignore that bit of the VIA recommendation..
192 pci_read_config_byte(dev, 0x76, &busarb);
193 /* Set bit 4 and bi 5 of byte 76 to 0x01
194 "Master priority rotation on every PCI master grant */
197 pci_write_config_byte(dev, 0x76, busarb);
198 dev_info(&dev->dev, "Applying VIA southbridge workaround\n");
202 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8363_0, quirk_vialatency);
203 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8371_1, quirk_vialatency);
204 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8361, quirk_vialatency);
205 /* Must restore this on a resume from RAM */
206 DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8363_0, quirk_vialatency);
207 DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8371_1, quirk_vialatency);
208 DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8361, quirk_vialatency);
211 * VIA Apollo VP3 needs ETBF on BT848/878
213 static void __devinit quirk_viaetbf(struct pci_dev *dev)
215 if ((pci_pci_problems&PCIPCI_VIAETBF)==0) {
216 dev_info(&dev->dev, "Limiting direct PCI/PCI transfers\n");
217 pci_pci_problems |= PCIPCI_VIAETBF;
220 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C597_0, quirk_viaetbf);
222 static void __devinit quirk_vsfx(struct pci_dev *dev)
224 if ((pci_pci_problems&PCIPCI_VSFX)==0) {
225 dev_info(&dev->dev, "Limiting direct PCI/PCI transfers\n");
226 pci_pci_problems |= PCIPCI_VSFX;
229 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C576, quirk_vsfx);
232 * Ali Magik requires workarounds to be used by the drivers
233 * that DMA to AGP space. Latency must be set to 0xA and triton
234 * workaround applied too
235 * [Info kindly provided by ALi]
237 static void __init quirk_alimagik(struct pci_dev *dev)
239 if ((pci_pci_problems&PCIPCI_ALIMAGIK)==0) {
240 dev_info(&dev->dev, "Limiting direct PCI/PCI transfers\n");
241 pci_pci_problems |= PCIPCI_ALIMAGIK|PCIPCI_TRITON;
244 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1647, quirk_alimagik);
245 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1651, quirk_alimagik);
248 * Natoma has some interesting boundary conditions with Zoran stuff
251 static void __devinit quirk_natoma(struct pci_dev *dev)
253 if ((pci_pci_problems&PCIPCI_NATOMA)==0) {
254 dev_info(&dev->dev, "Limiting direct PCI/PCI transfers\n");
255 pci_pci_problems |= PCIPCI_NATOMA;
258 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82441, quirk_natoma);
259 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443LX_0, quirk_natoma);
260 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443LX_1, quirk_natoma);
261 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443BX_0, quirk_natoma);
262 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443BX_1, quirk_natoma);
263 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443BX_2, quirk_natoma);
266 * This chip can cause PCI parity errors if config register 0xA0 is read
267 * while DMAs are occurring.
269 static void __devinit quirk_citrine(struct pci_dev *dev)
271 dev->cfg_size = 0xA0;
273 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, quirk_citrine);
276 * S3 868 and 968 chips report region size equal to 32M, but they decode 64M.
277 * If it's needed, re-allocate the region.
279 static void __devinit quirk_s3_64M(struct pci_dev *dev)
281 struct resource *r = &dev->resource[0];
283 if ((r->start & 0x3ffffff) || r->end != r->start + 0x3ffffff) {
288 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_S3, PCI_DEVICE_ID_S3_868, quirk_s3_64M);
289 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_S3, PCI_DEVICE_ID_S3_968, quirk_s3_64M);
291 static void __devinit quirk_io_region(struct pci_dev *dev, unsigned region,
292 unsigned size, int nr, const char *name)
296 struct pci_bus_region bus_region;
297 struct resource *res = dev->resource + nr;
299 res->name = pci_name(dev);
301 res->end = region + size - 1;
302 res->flags = IORESOURCE_IO;
304 /* Convert from PCI bus to resource space. */
305 bus_region.start = res->start;
306 bus_region.end = res->end;
307 pcibios_bus_to_resource(dev, res, &bus_region);
309 pci_claim_resource(dev, nr);
310 dev_info(&dev->dev, "quirk: region %04x-%04x claimed by %s\n", region, region + size - 1, name);
315 * ATI Northbridge setups MCE the processor if you even
316 * read somewhere between 0x3b0->0x3bb or read 0x3d3
318 static void __devinit quirk_ati_exploding_mce(struct pci_dev *dev)
320 dev_info(&dev->dev, "ATI Northbridge, reserving I/O ports 0x3b0 to 0x3bb\n");
321 /* Mae rhaid i ni beidio ag edrych ar y lleoliadiau I/O hyn */
322 request_region(0x3b0, 0x0C, "RadeonIGP");
323 request_region(0x3d3, 0x01, "RadeonIGP");
325 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RS100, quirk_ati_exploding_mce);
328 * Let's make the southbridge information explicit instead
329 * of having to worry about people probing the ACPI areas,
330 * for example.. (Yes, it happens, and if you read the wrong
331 * ACPI register it will put the machine to sleep with no
332 * way of waking it up again. Bummer).
334 * ALI M7101: Two IO regions pointed to by words at
335 * 0xE0 (64 bytes of ACPI registers)
336 * 0xE2 (32 bytes of SMB registers)
338 static void __devinit quirk_ali7101_acpi(struct pci_dev *dev)
342 pci_read_config_word(dev, 0xE0, ®ion);
343 quirk_io_region(dev, region, 64, PCI_BRIDGE_RESOURCES, "ali7101 ACPI");
344 pci_read_config_word(dev, 0xE2, ®ion);
345 quirk_io_region(dev, region, 32, PCI_BRIDGE_RESOURCES+1, "ali7101 SMB");
347 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M7101, quirk_ali7101_acpi);
349 static void piix4_io_quirk(struct pci_dev *dev, const char *name, unsigned int port, unsigned int enable)
352 u32 mask, size, base;
354 pci_read_config_dword(dev, port, &devres);
355 if ((devres & enable) != enable)
357 mask = (devres >> 16) & 15;
358 base = devres & 0xffff;
361 unsigned bit = size >> 1;
362 if ((bit & mask) == bit)
367 * For now we only print it out. Eventually we'll want to
368 * reserve it (at least if it's in the 0x1000+ range), but
369 * let's get enough confirmation reports first.
372 dev_info(&dev->dev, "%s PIO at %04x-%04x\n", name, base, base + size - 1);
375 static void piix4_mem_quirk(struct pci_dev *dev, const char *name, unsigned int port, unsigned int enable)
378 u32 mask, size, base;
380 pci_read_config_dword(dev, port, &devres);
381 if ((devres & enable) != enable)
383 base = devres & 0xffff0000;
384 mask = (devres & 0x3f) << 16;
387 unsigned bit = size >> 1;
388 if ((bit & mask) == bit)
393 * For now we only print it out. Eventually we'll want to
394 * reserve it, but let's get enough confirmation reports first.
397 dev_info(&dev->dev, "%s MMIO at %04x-%04x\n", name, base, base + size - 1);
401 * PIIX4 ACPI: Two IO regions pointed to by longwords at
402 * 0x40 (64 bytes of ACPI registers)
403 * 0x90 (16 bytes of SMB registers)
404 * and a few strange programmable PIIX4 device resources.
406 static void __devinit quirk_piix4_acpi(struct pci_dev *dev)
410 pci_read_config_dword(dev, 0x40, ®ion);
411 quirk_io_region(dev, region, 64, PCI_BRIDGE_RESOURCES, "PIIX4 ACPI");
412 pci_read_config_dword(dev, 0x90, ®ion);
413 quirk_io_region(dev, region, 16, PCI_BRIDGE_RESOURCES+1, "PIIX4 SMB");
415 /* Device resource A has enables for some of the other ones */
416 pci_read_config_dword(dev, 0x5c, &res_a);
418 piix4_io_quirk(dev, "PIIX4 devres B", 0x60, 3 << 21);
419 piix4_io_quirk(dev, "PIIX4 devres C", 0x64, 3 << 21);
421 /* Device resource D is just bitfields for static resources */
423 /* Device 12 enabled? */
424 if (res_a & (1 << 29)) {
425 piix4_io_quirk(dev, "PIIX4 devres E", 0x68, 1 << 20);
426 piix4_mem_quirk(dev, "PIIX4 devres F", 0x6c, 1 << 7);
428 /* Device 13 enabled? */
429 if (res_a & (1 << 30)) {
430 piix4_io_quirk(dev, "PIIX4 devres G", 0x70, 1 << 20);
431 piix4_mem_quirk(dev, "PIIX4 devres H", 0x74, 1 << 7);
433 piix4_io_quirk(dev, "PIIX4 devres I", 0x78, 1 << 20);
434 piix4_io_quirk(dev, "PIIX4 devres J", 0x7c, 1 << 20);
436 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82371AB_3, quirk_piix4_acpi);
437 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443MX_3, quirk_piix4_acpi);
440 * ICH4, ICH4-M, ICH5, ICH5-M ACPI: Three IO regions pointed to by longwords at
441 * 0x40 (128 bytes of ACPI, GPIO & TCO registers)
442 * 0x58 (64 bytes of GPIO I/O space)
444 static void __devinit quirk_ich4_lpc_acpi(struct pci_dev *dev)
448 pci_read_config_dword(dev, 0x40, ®ion);
449 quirk_io_region(dev, region, 128, PCI_BRIDGE_RESOURCES, "ICH4 ACPI/GPIO/TCO");
451 pci_read_config_dword(dev, 0x58, ®ion);
452 quirk_io_region(dev, region, 64, PCI_BRIDGE_RESOURCES+1, "ICH4 GPIO");
454 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801AA_0, quirk_ich4_lpc_acpi);
455 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801AB_0, quirk_ich4_lpc_acpi);
456 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_0, quirk_ich4_lpc_acpi);
457 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_10, quirk_ich4_lpc_acpi);
458 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_0, quirk_ich4_lpc_acpi);
459 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_12, quirk_ich4_lpc_acpi);
460 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_0, quirk_ich4_lpc_acpi);
461 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_12, quirk_ich4_lpc_acpi);
462 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801EB_0, quirk_ich4_lpc_acpi);
463 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB_1, quirk_ich4_lpc_acpi);
465 static void __devinit quirk_ich6_lpc_acpi(struct pci_dev *dev)
469 pci_read_config_dword(dev, 0x40, ®ion);
470 quirk_io_region(dev, region, 128, PCI_BRIDGE_RESOURCES, "ICH6 ACPI/GPIO/TCO");
472 pci_read_config_dword(dev, 0x48, ®ion);
473 quirk_io_region(dev, region, 64, PCI_BRIDGE_RESOURCES+1, "ICH6 GPIO");
475 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_0, quirk_ich6_lpc_acpi);
476 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1, quirk_ich6_lpc_acpi);
477 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH7_0, quirk_ich6_lpc_acpi);
478 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH7_1, quirk_ich6_lpc_acpi);
479 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH7_31, quirk_ich6_lpc_acpi);
480 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH8_0, quirk_ich6_lpc_acpi);
481 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH8_2, quirk_ich6_lpc_acpi);
482 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH8_3, quirk_ich6_lpc_acpi);
483 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH8_1, quirk_ich6_lpc_acpi);
484 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH8_4, quirk_ich6_lpc_acpi);
485 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH9_2, quirk_ich6_lpc_acpi);
486 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH9_4, quirk_ich6_lpc_acpi);
487 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH9_7, quirk_ich6_lpc_acpi);
488 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH9_8, quirk_ich6_lpc_acpi);
491 * VIA ACPI: One IO region pointed to by longword at
492 * 0x48 or 0x20 (256 bytes of ACPI registers)
494 static void __devinit quirk_vt82c586_acpi(struct pci_dev *dev)
498 if (dev->revision & 0x10) {
499 pci_read_config_dword(dev, 0x48, ®ion);
500 region &= PCI_BASE_ADDRESS_IO_MASK;
501 quirk_io_region(dev, region, 256, PCI_BRIDGE_RESOURCES, "vt82c586 ACPI");
504 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C586_3, quirk_vt82c586_acpi);
507 * VIA VT82C686 ACPI: Three IO region pointed to by (long)words at
508 * 0x48 (256 bytes of ACPI registers)
509 * 0x70 (128 bytes of hardware monitoring register)
510 * 0x90 (16 bytes of SMB registers)
512 static void __devinit quirk_vt82c686_acpi(struct pci_dev *dev)
517 quirk_vt82c586_acpi(dev);
519 pci_read_config_word(dev, 0x70, &hm);
520 hm &= PCI_BASE_ADDRESS_IO_MASK;
521 quirk_io_region(dev, hm, 128, PCI_BRIDGE_RESOURCES + 1, "vt82c686 HW-mon");
523 pci_read_config_dword(dev, 0x90, &smb);
524 smb &= PCI_BASE_ADDRESS_IO_MASK;
525 quirk_io_region(dev, smb, 16, PCI_BRIDGE_RESOURCES + 2, "vt82c686 SMB");
527 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686_4, quirk_vt82c686_acpi);
530 * VIA VT8235 ISA Bridge: Two IO regions pointed to by words at
531 * 0x88 (128 bytes of power management registers)
532 * 0xd0 (16 bytes of SMB registers)
534 static void __devinit quirk_vt8235_acpi(struct pci_dev *dev)
538 pci_read_config_word(dev, 0x88, &pm);
539 pm &= PCI_BASE_ADDRESS_IO_MASK;
540 quirk_io_region(dev, pm, 128, PCI_BRIDGE_RESOURCES, "vt8235 PM");
542 pci_read_config_word(dev, 0xd0, &smb);
543 smb &= PCI_BASE_ADDRESS_IO_MASK;
544 quirk_io_region(dev, smb, 16, PCI_BRIDGE_RESOURCES + 1, "vt8235 SMB");
546 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8235, quirk_vt8235_acpi);
549 #ifdef CONFIG_X86_IO_APIC
551 #include <asm/io_apic.h>
554 * VIA 686A/B: If an IO-APIC is active, we need to route all on-chip
555 * devices to the external APIC.
557 * TODO: When we have device-specific interrupt routers,
558 * this code will go away from quirks.
560 static void quirk_via_ioapic(struct pci_dev *dev)
565 tmp = 0; /* nothing routed to external APIC */
567 tmp = 0x1f; /* all known bits (4-0) routed to external APIC */
569 dev_info(&dev->dev, "%sbling VIA external APIC routing\n",
570 tmp == 0 ? "Disa" : "Ena");
572 /* Offset 0x58: External APIC IRQ output control */
573 pci_write_config_byte (dev, 0x58, tmp);
575 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686, quirk_via_ioapic);
576 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686, quirk_via_ioapic);
579 * VIA 8237: Some BIOSs don't set the 'Bypass APIC De-Assert Message' Bit.
580 * This leads to doubled level interrupt rates.
581 * Set this bit to get rid of cycle wastage.
582 * Otherwise uncritical.
584 static void quirk_via_vt8237_bypass_apic_deassert(struct pci_dev *dev)
587 #define BYPASS_APIC_DEASSERT 8
589 pci_read_config_byte(dev, 0x5B, &misc_control2);
590 if (!(misc_control2 & BYPASS_APIC_DEASSERT)) {
591 dev_info(&dev->dev, "Bypassing VIA 8237 APIC De-Assert Message\n");
592 pci_write_config_byte(dev, 0x5B, misc_control2|BYPASS_APIC_DEASSERT);
595 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, quirk_via_vt8237_bypass_apic_deassert);
596 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, quirk_via_vt8237_bypass_apic_deassert);
599 * The AMD io apic can hang the box when an apic irq is masked.
600 * We check all revs >= B0 (yet not in the pre production!) as the bug
601 * is currently marked NoFix
603 * We have multiple reports of hangs with this chipset that went away with
604 * noapic specified. For the moment we assume it's the erratum. We may be wrong
605 * of course. However the advice is demonstrably good even if so..
607 static void __devinit quirk_amd_ioapic(struct pci_dev *dev)
609 if (dev->revision >= 0x02) {
610 dev_warn(&dev->dev, "I/O APIC: AMD Erratum #22 may be present. In the event of instability try\n");
611 dev_warn(&dev->dev, " : booting with the \"noapic\" option\n");
614 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_VIPER_7410, quirk_amd_ioapic);
616 static void __init quirk_ioapic_rmw(struct pci_dev *dev)
618 if (dev->devfn == 0 && dev->bus->number == 0)
621 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SI, PCI_ANY_ID, quirk_ioapic_rmw);
622 #endif /* CONFIG_X86_IO_APIC */
625 * Some settings of MMRBC can lead to data corruption so block changes.
626 * See AMD 8131 HyperTransport PCI-X Tunnel Revision Guide
628 static void __init quirk_amd_8131_mmrbc(struct pci_dev *dev)
630 if (dev->subordinate && dev->revision <= 0x12) {
631 dev_info(&dev->dev, "AMD8131 rev %x detected; "
632 "disabling PCI-X MMRBC\n", dev->revision);
633 dev->subordinate->bus_flags |= PCI_BUS_FLAGS_NO_MMRBC;
636 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8131_BRIDGE, quirk_amd_8131_mmrbc);
639 * 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.
646 static void __devinit quirk_via_acpi(struct pci_dev *d)
649 * VIA ACPI device: SCI IRQ line in PCI config byte 0x42
652 pci_read_config_byte(d, 0x42, &irq);
654 if (irq && (irq != 2))
657 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C586_3, quirk_via_acpi);
658 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686_4, quirk_via_acpi);
662 * VIA bridges which have VLink
665 static int via_vlink_dev_lo = -1, via_vlink_dev_hi = 18;
667 static void quirk_via_bridge(struct pci_dev *dev)
669 /* See what bridge we have and find the device ranges */
670 switch (dev->device) {
671 case PCI_DEVICE_ID_VIA_82C686:
672 /* 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);
678 case PCI_DEVICE_ID_VIA_8237:
679 case PCI_DEVICE_ID_VIA_8237A:
680 via_vlink_dev_lo = 15;
682 case PCI_DEVICE_ID_VIA_8235:
683 via_vlink_dev_lo = 16;
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;
693 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686, quirk_via_bridge);
694 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8231, quirk_via_bridge);
695 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8233_0, quirk_via_bridge);
696 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8233A, quirk_via_bridge);
697 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8233C_0, quirk_via_bridge);
698 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8235, quirk_via_bridge);
699 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, quirk_via_bridge);
700 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237A, quirk_via_bridge);
703 * quirk_via_vlink - VIA VLink IRQ number update
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
709 * 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
715 static void quirk_via_vlink(struct pci_dev *dev)
719 /* Check if we have VLink at all */
720 if (via_vlink_dev_lo == -1)
725 /* Don't quirk interrupts outside the legacy IRQ range */
726 if (!new_irq || new_irq > 15)
729 /* Internal device ? */
730 if (dev->bus->number != 0 || PCI_SLOT(dev->devfn) > via_vlink_dev_hi ||
731 PCI_SLOT(dev->devfn) < via_vlink_dev_lo)
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 */
737 pci_read_config_byte(dev, PCI_INTERRUPT_LINE, &irq);
738 if (new_irq != irq) {
739 dev_info(&dev->dev, "VIA VLink IRQ fixup, from %d to %d\n",
741 udelay(15); /* unknown if delay really needed */
742 pci_write_config_byte(dev, PCI_INTERRUPT_LINE, new_irq);
745 DECLARE_PCI_FIXUP_ENABLE(PCI_VENDOR_ID_VIA, PCI_ANY_ID, quirk_via_vlink);
748 * 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
753 static void __devinit quirk_vt82c598_id(struct pci_dev *dev)
755 pci_write_config_byte(dev, 0xfc, 0);
756 pci_read_config_word(dev, PCI_DEVICE_ID, &dev->device);
758 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C597_0, quirk_vt82c598_id);
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.
766 static void quirk_cardbus_legacy(struct pci_dev *dev)
768 if ((PCI_CLASS_BRIDGE_CARDBUS << 8) ^ dev->class)
770 pci_write_config_dword(dev, PCI_CB_LEGACY_MODE_BASE, 0);
772 DECLARE_PCI_FIXUP_FINAL(PCI_ANY_ID, PCI_ANY_ID, quirk_cardbus_legacy);
773 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_ANY_ID, PCI_ANY_ID, quirk_cardbus_legacy);
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...
779 * To be fair to AMD, it follows the spec by default, its BIOS people
782 static void quirk_amd_ordering(struct pci_dev *dev)
785 pci_read_config_dword(dev, 0x4C, &pcic);
788 dev_warn(&dev->dev, "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);
795 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_FE_GATE_700C, quirk_amd_ordering);
796 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_FE_GATE_700C, quirk_amd_ordering);
799 * DreamWorks provided workaround for Dunord I-3000 problem
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.
805 static void __devinit quirk_dunord ( struct pci_dev * dev )
807 struct resource *r = &dev->resource [1];
811 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_DUNORD, PCI_DEVICE_ID_DUNORD_I3000, quirk_dunord);
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
819 static void __devinit quirk_transparent_bridge(struct pci_dev *dev)
821 dev->transparent = 1;
823 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82380FB, quirk_transparent_bridge);
824 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_TOSHIBA, 0x605, quirk_transparent_bridge);
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>
832 static void quirk_mediagx_master(struct pci_dev *dev)
835 pci_read_config_byte(dev, 0x41, ®);
838 dev_info(&dev->dev, "Fixup for MediaGX/Geode Slave Disconnect Boundary (0x41=0x%02x)\n", reg);
839 pci_write_config_byte(dev, 0x41, reg);
842 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CYRIX, PCI_DEVICE_ID_CYRIX_PCI_MASTER, quirk_mediagx_master);
843 DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_CYRIX, PCI_DEVICE_ID_CYRIX_PCI_MASTER, quirk_mediagx_master);
846 * 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
850 static void quirk_disable_pxb(struct pci_dev *pdev)
854 if (pdev->revision != 0x04) /* Only C0 requires this */
856 pci_read_config_word(pdev, 0x40, &config);
857 if (config & (1<<6)) {
859 pci_write_config_word(pdev, 0x40, config);
860 dev_info(&pdev->dev, "C0 revision 450NX. Disabling PCI restreaming\n");
863 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82454NX, quirk_disable_pxb);
864 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82454NX, quirk_disable_pxb);
866 static void __devinit quirk_amd_ide_mode(struct pci_dev *pdev)
868 /* set sb600/sb700/sb800 sata to ahci mode */
871 pci_read_config_byte(pdev, PCI_CLASS_DEVICE, &tmp);
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);
879 pdev->class = PCI_CLASS_STORAGE_SATA_AHCI;
880 dev_info(&pdev->dev, "set SATA to AHCI mode\n");
883 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP600_SATA, quirk_amd_ide_mode);
884 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP600_SATA, quirk_amd_ide_mode);
885 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP700_SATA, quirk_amd_ide_mode);
886 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP700_SATA, quirk_amd_ide_mode);
889 * Serverworks CSB5 IDE does not fully support native mode
891 static void __devinit quirk_svwks_csb5ide(struct pci_dev *pdev)
894 pci_read_config_byte(pdev, PCI_CLASS_PROG, &prog);
898 pci_write_config_byte(pdev, PCI_CLASS_PROG, prog);
899 /* PCI layer will sort out resources */
902 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_CSB5IDE, quirk_svwks_csb5ide);
905 * Intel 82801CAM ICH3-M datasheet says IDE modes must be the same
907 static void __init quirk_ide_samemode(struct pci_dev *pdev)
911 pci_read_config_byte(pdev, PCI_CLASS_PROG, &prog);
913 if (((prog & 1) && !(prog & 4)) || ((prog & 4) && !(prog & 1))) {
914 dev_info(&pdev->dev, "IDE mode mismatch; forcing legacy mode\n");
917 pci_write_config_byte(pdev, PCI_CLASS_PROG, prog);
920 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_10, quirk_ide_samemode);
923 * Some ATA devices break if put into D3
926 static void __devinit quirk_no_ata_d3(struct pci_dev *pdev)
928 /* Quirk the legacy ATA devices only. The AHCI ones are ok */
929 if ((pdev->class >> 8) == PCI_CLASS_STORAGE_IDE)
930 pdev->dev_flags |= PCI_DEV_FLAGS_NO_D3;
932 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_SERVERWORKS, PCI_ANY_ID, quirk_no_ata_d3);
933 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_ATI, PCI_ANY_ID, quirk_no_ata_d3);
935 /* This was originally an Alpha specific thing, but it really fits here.
936 * The i82375 PCI/EISA bridge appears as non-classified. Fix that.
938 static void __init quirk_eisa_bridge(struct pci_dev *dev)
940 dev->class = PCI_CLASS_BRIDGE_EISA << 8;
942 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82375, quirk_eisa_bridge);
946 * On ASUS P4B boards, the SMBus PCI Device within the ICH2/4 southbridge
947 * is not activated. The myth is that Asus said that they do not want the
948 * users to be irritated by just another PCI Device in the Win98 device
949 * manager. (see the file prog/hotplug/README.p4b in the lm_sensors
950 * package 2.7.0 for details)
952 * The SMBus PCI Device can be activated by setting a bit in the ICH LPC
953 * bridge. Unfortunately, this device has no subvendor/subdevice ID. So it
954 * becomes necessary to do this tweak in two steps -- the chosen trigger
955 * is either the Host bridge (preferred) or on-board VGA controller.
957 * Note that we used to unhide the SMBus that way on Toshiba laptops
958 * (Satellite A40 and Tecra M2) but then found that the thermal management
959 * was done by SMM code, which could cause unsynchronized concurrent
960 * accesses to the SMBus registers, with potentially bad effects. Thus you
961 * should be very careful when adding new entries: if SMM is accessing the
962 * Intel SMBus, this is a very good reason to leave it hidden.
964 * Likewise, many recent laptops use ACPI for thermal management. If the
965 * ACPI DSDT code accesses the SMBus, then Linux should not access it
966 * natively, and keeping the SMBus hidden is the right thing to do. If you
967 * are about to add an entry in the table below, please first disassemble
968 * the DSDT and double-check that there is no code accessing the SMBus.
970 static int asus_hides_smbus;
972 static void __init asus_hides_smbus_hostbridge(struct pci_dev *dev)
974 if (unlikely(dev->subsystem_vendor == PCI_VENDOR_ID_ASUSTEK)) {
975 if (dev->device == PCI_DEVICE_ID_INTEL_82845_HB)
976 switch(dev->subsystem_device) {
977 case 0x8025: /* P4B-LX */
978 case 0x8070: /* P4B */
979 case 0x8088: /* P4B533 */
980 case 0x1626: /* L3C notebook */
981 asus_hides_smbus = 1;
983 else if (dev->device == PCI_DEVICE_ID_INTEL_82845G_HB)
984 switch(dev->subsystem_device) {
985 case 0x80b1: /* P4GE-V */
986 case 0x80b2: /* P4PE */
987 case 0x8093: /* P4B533-V */
988 asus_hides_smbus = 1;
990 else if (dev->device == PCI_DEVICE_ID_INTEL_82850_HB)
991 switch(dev->subsystem_device) {
992 case 0x8030: /* P4T533 */
993 asus_hides_smbus = 1;
995 else if (dev->device == PCI_DEVICE_ID_INTEL_7205_0)
996 switch (dev->subsystem_device) {
997 case 0x8070: /* P4G8X Deluxe */
998 asus_hides_smbus = 1;
1000 else if (dev->device == PCI_DEVICE_ID_INTEL_E7501_MCH)
1001 switch (dev->subsystem_device) {
1002 case 0x80c9: /* PU-DLS */
1003 asus_hides_smbus = 1;
1005 else if (dev->device == PCI_DEVICE_ID_INTEL_82855GM_HB)
1006 switch (dev->subsystem_device) {
1007 case 0x1751: /* M2N notebook */
1008 case 0x1821: /* M5N notebook */
1009 asus_hides_smbus = 1;
1011 else if (dev->device == PCI_DEVICE_ID_INTEL_82855PM_HB)
1012 switch (dev->subsystem_device) {
1013 case 0x184b: /* W1N notebook */
1014 case 0x186a: /* M6Ne notebook */
1015 asus_hides_smbus = 1;
1017 else if (dev->device == PCI_DEVICE_ID_INTEL_82865_HB)
1018 switch (dev->subsystem_device) {
1019 case 0x80f2: /* P4P800-X */
1020 asus_hides_smbus = 1;
1022 else if (dev->device == PCI_DEVICE_ID_INTEL_82915GM_HB)
1023 switch (dev->subsystem_device) {
1024 case 0x1882: /* M6V notebook */
1025 case 0x1977: /* A6VA notebook */
1026 asus_hides_smbus = 1;
1028 } else if (unlikely(dev->subsystem_vendor == PCI_VENDOR_ID_HP)) {
1029 if (dev->device == PCI_DEVICE_ID_INTEL_82855PM_HB)
1030 switch(dev->subsystem_device) {
1031 case 0x088C: /* HP Compaq nc8000 */
1032 case 0x0890: /* HP Compaq nc6000 */
1033 asus_hides_smbus = 1;
1035 else if (dev->device == PCI_DEVICE_ID_INTEL_82865_HB)
1036 switch (dev->subsystem_device) {
1037 case 0x12bc: /* HP D330L */
1038 case 0x12bd: /* HP D530 */
1039 asus_hides_smbus = 1;
1041 else if (dev->device == PCI_DEVICE_ID_INTEL_82875_HB)
1042 switch (dev->subsystem_device) {
1043 case 0x12bf: /* HP xw4100 */
1044 asus_hides_smbus = 1;
1046 } else if (unlikely(dev->subsystem_vendor == PCI_VENDOR_ID_SAMSUNG)) {
1047 if (dev->device == PCI_DEVICE_ID_INTEL_82855PM_HB)
1048 switch(dev->subsystem_device) {
1049 case 0xC00C: /* Samsung P35 notebook */
1050 asus_hides_smbus = 1;
1052 } else if (unlikely(dev->subsystem_vendor == PCI_VENDOR_ID_COMPAQ)) {
1053 if (dev->device == PCI_DEVICE_ID_INTEL_82855PM_HB)
1054 switch(dev->subsystem_device) {
1055 case 0x0058: /* Compaq Evo N620c */
1056 asus_hides_smbus = 1;
1058 else if (dev->device == PCI_DEVICE_ID_INTEL_82810_IG3)
1059 switch(dev->subsystem_device) {
1060 case 0xB16C: /* Compaq Deskpro EP 401963-001 (PCA# 010174) */
1061 /* Motherboard doesn't have Host bridge
1062 * subvendor/subdevice IDs, therefore checking
1063 * its on-board VGA controller */
1064 asus_hides_smbus = 1;
1066 else if (dev->device == PCI_DEVICE_ID_INTEL_82845G_IG)
1067 switch(dev->subsystem_device) {
1068 case 0x00b8: /* Compaq Evo D510 CMT */
1069 case 0x00b9: /* Compaq Evo D510 SFF */
1070 asus_hides_smbus = 1;
1072 else if (dev->device == PCI_DEVICE_ID_INTEL_82815_CGC)
1073 switch (dev->subsystem_device) {
1074 case 0x001A: /* Compaq Deskpro EN SSF P667 815E */
1075 /* Motherboard doesn't have host bridge
1076 * subvendor/subdevice IDs, therefore checking
1077 * its on-board VGA controller */
1078 asus_hides_smbus = 1;
1082 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82845_HB, asus_hides_smbus_hostbridge);
1083 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82845G_HB, asus_hides_smbus_hostbridge);
1084 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82850_HB, asus_hides_smbus_hostbridge);
1085 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82865_HB, asus_hides_smbus_hostbridge);
1086 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82875_HB, asus_hides_smbus_hostbridge);
1087 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_7205_0, asus_hides_smbus_hostbridge);
1088 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7501_MCH, asus_hides_smbus_hostbridge);
1089 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82855PM_HB, asus_hides_smbus_hostbridge);
1090 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82855GM_HB, asus_hides_smbus_hostbridge);
1091 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82915GM_HB, asus_hides_smbus_hostbridge);
1093 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82810_IG3, asus_hides_smbus_hostbridge);
1094 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82845G_IG, asus_hides_smbus_hostbridge);
1095 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82815_CGC, asus_hides_smbus_hostbridge);
1097 static void asus_hides_smbus_lpc(struct pci_dev *dev)
1101 if (likely(!asus_hides_smbus))
1104 pci_read_config_word(dev, 0xF2, &val);
1106 pci_write_config_word(dev, 0xF2, val & (~0x8));
1107 pci_read_config_word(dev, 0xF2, &val);
1109 dev_info(&dev->dev, "i801 SMBus device continues to play 'hide and seek'! 0x%x\n", val);
1111 dev_info(&dev->dev, "Enabled i801 SMBus device\n");
1114 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801AA_0, asus_hides_smbus_lpc);
1115 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_0, asus_hides_smbus_lpc);
1116 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_0, asus_hides_smbus_lpc);
1117 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_0, asus_hides_smbus_lpc);
1118 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_12, asus_hides_smbus_lpc);
1119 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_12, asus_hides_smbus_lpc);
1120 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801EB_0, asus_hides_smbus_lpc);
1121 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801AA_0, asus_hides_smbus_lpc);
1122 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_0, asus_hides_smbus_lpc);
1123 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_0, asus_hides_smbus_lpc);
1124 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_0, asus_hides_smbus_lpc);
1125 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_12, asus_hides_smbus_lpc);
1126 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_12, asus_hides_smbus_lpc);
1127 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801EB_0, asus_hides_smbus_lpc);
1129 /* It appears we just have one such device. If not, we have a warning */
1130 static void __iomem *asus_rcba_base;
1131 static void asus_hides_smbus_lpc_ich6_suspend(struct pci_dev *dev)
1135 if (likely(!asus_hides_smbus))
1137 WARN_ON(asus_rcba_base);
1139 pci_read_config_dword(dev, 0xF0, &rcba);
1140 /* use bits 31:14, 16 kB aligned */
1141 asus_rcba_base = ioremap_nocache(rcba & 0xFFFFC000, 0x4000);
1142 if (asus_rcba_base == NULL)
1146 static void asus_hides_smbus_lpc_ich6_resume_early(struct pci_dev *dev)
1150 if (likely(!asus_hides_smbus || !asus_rcba_base))
1152 /* read the Function Disable register, dword mode only */
1153 val = readl(asus_rcba_base + 0x3418);
1154 writel(val & 0xFFFFFFF7, asus_rcba_base + 0x3418); /* enable the SMBus device */
1157 static void asus_hides_smbus_lpc_ich6_resume(struct pci_dev *dev)
1159 if (likely(!asus_hides_smbus || !asus_rcba_base))
1161 iounmap(asus_rcba_base);
1162 asus_rcba_base = NULL;
1163 dev_info(&dev->dev, "Enabled ICH6/i801 SMBus device\n");
1166 static void asus_hides_smbus_lpc_ich6(struct pci_dev *dev)
1168 asus_hides_smbus_lpc_ich6_suspend(dev);
1169 asus_hides_smbus_lpc_ich6_resume_early(dev);
1170 asus_hides_smbus_lpc_ich6_resume(dev);
1172 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1, asus_hides_smbus_lpc_ich6);
1173 DECLARE_PCI_FIXUP_SUSPEND(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1, asus_hides_smbus_lpc_ich6_suspend);
1174 DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1, asus_hides_smbus_lpc_ich6_resume);
1175 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1, asus_hides_smbus_lpc_ich6_resume_early);
1178 * SiS 96x south bridge: BIOS typically hides SMBus device...
1180 static void quirk_sis_96x_smbus(struct pci_dev *dev)
1183 pci_read_config_byte(dev, 0x77, &val);
1185 dev_info(&dev->dev, "Enabling SiS 96x SMBus\n");
1186 pci_write_config_byte(dev, 0x77, val & ~0x10);
1189 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_961, quirk_sis_96x_smbus);
1190 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_962, quirk_sis_96x_smbus);
1191 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_963, quirk_sis_96x_smbus);
1192 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_LPC, quirk_sis_96x_smbus);
1193 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_961, quirk_sis_96x_smbus);
1194 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_962, quirk_sis_96x_smbus);
1195 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_963, quirk_sis_96x_smbus);
1196 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_LPC, quirk_sis_96x_smbus);
1199 * ... This is further complicated by the fact that some SiS96x south
1200 * bridges pretend to be 85C503/5513 instead. In that case see if we
1201 * spotted a compatible north bridge to make sure.
1202 * (pci_find_device doesn't work yet)
1204 * We can also enable the sis96x bit in the discovery register..
1206 #define SIS_DETECT_REGISTER 0x40
1208 static void quirk_sis_503(struct pci_dev *dev)
1213 pci_read_config_byte(dev, SIS_DETECT_REGISTER, ®);
1214 pci_write_config_byte(dev, SIS_DETECT_REGISTER, reg | (1 << 6));
1215 pci_read_config_word(dev, PCI_DEVICE_ID, &devid);
1216 if (((devid & 0xfff0) != 0x0960) && (devid != 0x0018)) {
1217 pci_write_config_byte(dev, SIS_DETECT_REGISTER, reg);
1222 * Ok, it now shows up as a 96x.. run the 96x quirk by
1223 * hand in case it has already been processed.
1224 * (depends on link order, which is apparently not guaranteed)
1226 dev->device = devid;
1227 quirk_sis_96x_smbus(dev);
1229 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_503, quirk_sis_503);
1230 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_503, quirk_sis_503);
1234 * On ASUS A8V and A8V Deluxe boards, the onboard AC97 audio controller
1235 * and MC97 modem controller are disabled when a second PCI soundcard is
1236 * present. This patch, tweaking the VT8237 ISA bridge, enables them.
1239 static void asus_hides_ac97_lpc(struct pci_dev *dev)
1242 int asus_hides_ac97 = 0;
1244 if (likely(dev->subsystem_vendor == PCI_VENDOR_ID_ASUSTEK)) {
1245 if (dev->device == PCI_DEVICE_ID_VIA_8237)
1246 asus_hides_ac97 = 1;
1249 if (!asus_hides_ac97)
1252 pci_read_config_byte(dev, 0x50, &val);
1254 pci_write_config_byte(dev, 0x50, val & (~0xc0));
1255 pci_read_config_byte(dev, 0x50, &val);
1257 dev_info(&dev->dev, "Onboard AC97/MC97 devices continue to play 'hide and seek'! 0x%x\n", val);
1259 dev_info(&dev->dev, "Enabled onboard AC97/MC97 devices\n");
1262 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, asus_hides_ac97_lpc);
1263 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, asus_hides_ac97_lpc);
1265 #if defined(CONFIG_ATA) || defined(CONFIG_ATA_MODULE)
1268 * If we are using libata we can drive this chip properly but must
1269 * do this early on to make the additional device appear during
1272 static void quirk_jmicron_ata(struct pci_dev *pdev)
1274 u32 conf1, conf5, class;
1277 /* Only poke fn 0 */
1278 if (PCI_FUNC(pdev->devfn))
1281 pci_read_config_dword(pdev, 0x40, &conf1);
1282 pci_read_config_dword(pdev, 0x80, &conf5);
1284 conf1 &= ~0x00CFF302; /* Clear bit 1, 8, 9, 12-19, 22, 23 */
1285 conf5 &= ~(1 << 24); /* Clear bit 24 */
1287 switch (pdev->device) {
1288 case PCI_DEVICE_ID_JMICRON_JMB360:
1289 /* The controller should be in single function ahci mode */
1290 conf1 |= 0x0002A100; /* Set 8, 13, 15, 17 */
1293 case PCI_DEVICE_ID_JMICRON_JMB365:
1294 case PCI_DEVICE_ID_JMICRON_JMB366:
1295 /* Redirect IDE second PATA port to the right spot */
1298 case PCI_DEVICE_ID_JMICRON_JMB361:
1299 case PCI_DEVICE_ID_JMICRON_JMB363:
1300 /* Enable dual function mode, AHCI on fn 0, IDE fn1 */
1301 /* Set the class codes correctly and then direct IDE 0 */
1302 conf1 |= 0x00C2A1B3; /* Set 0, 1, 4, 5, 7, 8, 13, 15, 17, 22, 23 */
1305 case PCI_DEVICE_ID_JMICRON_JMB368:
1306 /* The controller should be in single function IDE mode */
1307 conf1 |= 0x00C00000; /* Set 22, 23 */
1311 pci_write_config_dword(pdev, 0x40, conf1);
1312 pci_write_config_dword(pdev, 0x80, conf5);
1314 /* Update pdev accordingly */
1315 pci_read_config_byte(pdev, PCI_HEADER_TYPE, &hdr);
1316 pdev->hdr_type = hdr & 0x7f;
1317 pdev->multifunction = !!(hdr & 0x80);
1319 pci_read_config_dword(pdev, PCI_CLASS_REVISION, &class);
1320 pdev->class = class >> 8;
1322 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB360, quirk_jmicron_ata);
1323 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB361, quirk_jmicron_ata);
1324 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB363, quirk_jmicron_ata);
1325 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB365, quirk_jmicron_ata);
1326 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB366, quirk_jmicron_ata);
1327 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB368, quirk_jmicron_ata);
1328 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB360, quirk_jmicron_ata);
1329 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB361, quirk_jmicron_ata);
1330 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB363, quirk_jmicron_ata);
1331 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB365, quirk_jmicron_ata);
1332 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB366, quirk_jmicron_ata);
1333 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB368, quirk_jmicron_ata);
1337 #ifdef CONFIG_X86_IO_APIC
1338 static void __init quirk_alder_ioapic(struct pci_dev *pdev)
1342 if ((pdev->class >> 8) != 0xff00)
1345 /* the first BAR is the location of the IO APIC...we must
1346 * not touch this (and it's already covered by the fixmap), so
1347 * forcibly insert it into the resource tree */
1348 if (pci_resource_start(pdev, 0) && pci_resource_len(pdev, 0))
1349 insert_resource(&iomem_resource, &pdev->resource[0]);
1351 /* The next five BARs all seem to be rubbish, so just clean
1353 for (i=1; i < 6; i++) {
1354 memset(&pdev->resource[i], 0, sizeof(pdev->resource[i]));
1358 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_EESSC, quirk_alder_ioapic);
1361 static void __devinit quirk_pcie_mch(struct pci_dev *pdev)
1365 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7520_MCH, quirk_pcie_mch);
1366 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7320_MCH, quirk_pcie_mch);
1367 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7525_MCH, quirk_pcie_mch);
1371 * It's possible for the MSI to get corrupted if shpc and acpi
1372 * are used together on certain PXH-based systems.
1374 static void __devinit quirk_pcie_pxh(struct pci_dev *dev)
1378 dev_warn(&dev->dev, "PXH quirk detected; SHPC device MSI disabled\n");
1380 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXHD_0, quirk_pcie_pxh);
1381 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXHD_1, quirk_pcie_pxh);
1382 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_0, quirk_pcie_pxh);
1383 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_1, quirk_pcie_pxh);
1384 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXHV, quirk_pcie_pxh);
1387 * Some Intel PCI Express chipsets have trouble with downstream
1388 * device power management.
1390 static void quirk_intel_pcie_pm(struct pci_dev * dev)
1392 pci_pm_d3_delay = 120;
1396 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e2, quirk_intel_pcie_pm);
1397 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e3, quirk_intel_pcie_pm);
1398 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e4, quirk_intel_pcie_pm);
1399 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e5, quirk_intel_pcie_pm);
1400 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e6, quirk_intel_pcie_pm);
1401 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e7, quirk_intel_pcie_pm);
1402 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25f7, quirk_intel_pcie_pm);
1403 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25f8, quirk_intel_pcie_pm);
1404 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25f9, quirk_intel_pcie_pm);
1405 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25fa, quirk_intel_pcie_pm);
1406 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2601, quirk_intel_pcie_pm);
1407 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2602, quirk_intel_pcie_pm);
1408 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2603, quirk_intel_pcie_pm);
1409 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2604, quirk_intel_pcie_pm);
1410 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2605, quirk_intel_pcie_pm);
1411 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2606, quirk_intel_pcie_pm);
1412 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2607, quirk_intel_pcie_pm);
1413 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2608, quirk_intel_pcie_pm);
1414 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2609, quirk_intel_pcie_pm);
1415 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x260a, quirk_intel_pcie_pm);
1416 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x260b, quirk_intel_pcie_pm);
1418 #ifdef CONFIG_X86_IO_APIC
1420 * Boot interrupts on some chipsets cannot be turned off. For these chipsets,
1421 * remap the original interrupt in the linux kernel to the boot interrupt, so
1422 * that a PCI device's interrupt handler is installed on the boot interrupt
1425 static void quirk_reroute_to_boot_interrupts_intel(struct pci_dev *dev)
1427 if (noioapicquirk || noioapicreroute)
1430 dev->irq_reroute_variant = INTEL_IRQ_REROUTE_VARIANT;
1432 printk(KERN_INFO "PCI quirk: reroute interrupts for 0x%04x:0x%04x\n",
1433 dev->vendor, dev->device);
1436 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80333_0, quirk_reroute_to_boot_interrupts_intel);
1437 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80333_1, quirk_reroute_to_boot_interrupts_intel);
1438 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB2_0, quirk_reroute_to_boot_interrupts_intel);
1439 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_0, quirk_reroute_to_boot_interrupts_intel);
1440 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_1, quirk_reroute_to_boot_interrupts_intel);
1441 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXHV, quirk_reroute_to_boot_interrupts_intel);
1442 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80332_0, quirk_reroute_to_boot_interrupts_intel);
1443 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80332_1, quirk_reroute_to_boot_interrupts_intel);
1444 DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80333_0, quirk_reroute_to_boot_interrupts_intel);
1445 DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80333_1, quirk_reroute_to_boot_interrupts_intel);
1446 DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB2_0, quirk_reroute_to_boot_interrupts_intel);
1447 DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_0, quirk_reroute_to_boot_interrupts_intel);
1448 DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_1, quirk_reroute_to_boot_interrupts_intel);
1449 DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXHV, quirk_reroute_to_boot_interrupts_intel);
1450 DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80332_0, quirk_reroute_to_boot_interrupts_intel);
1451 DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80332_1, quirk_reroute_to_boot_interrupts_intel);
1454 * On some chipsets we can disable the generation of legacy INTx boot
1459 * IO-APIC1 on 6300ESB generates boot interrupts, see intel order no
1460 * 300641-004US, section 5.7.3.
1462 #define INTEL_6300_IOAPIC_ABAR 0x40
1463 #define INTEL_6300_DISABLE_BOOT_IRQ (1<<14)
1465 static void quirk_disable_intel_boot_interrupt(struct pci_dev *dev)
1467 u16 pci_config_word;
1472 pci_read_config_word(dev, INTEL_6300_IOAPIC_ABAR, &pci_config_word);
1473 pci_config_word |= INTEL_6300_DISABLE_BOOT_IRQ;
1474 pci_write_config_word(dev, INTEL_6300_IOAPIC_ABAR, pci_config_word);
1476 printk(KERN_INFO "disabled boot interrupt on device 0x%04x:0x%04x\n",
1477 dev->vendor, dev->device);
1479 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB_10, quirk_disable_intel_boot_interrupt);
1480 DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB_10, quirk_disable_intel_boot_interrupt);
1483 * disable boot interrupts on HT-1000
1485 #define BC_HT1000_FEATURE_REG 0x64
1486 #define BC_HT1000_PIC_REGS_ENABLE (1<<0)
1487 #define BC_HT1000_MAP_IDX 0xC00
1488 #define BC_HT1000_MAP_DATA 0xC01
1490 static void quirk_disable_broadcom_boot_interrupt(struct pci_dev *dev)
1492 u32 pci_config_dword;
1498 pci_read_config_dword(dev, BC_HT1000_FEATURE_REG, &pci_config_dword);
1499 pci_write_config_dword(dev, BC_HT1000_FEATURE_REG, pci_config_dword |
1500 BC_HT1000_PIC_REGS_ENABLE);
1502 for (irq = 0x10; irq < 0x10 + 32; irq++) {
1503 outb(irq, BC_HT1000_MAP_IDX);
1504 outb(0x00, BC_HT1000_MAP_DATA);
1507 pci_write_config_dword(dev, BC_HT1000_FEATURE_REG, pci_config_dword);
1509 printk(KERN_INFO "disabled boot interrupts on PCI device"
1510 "0x%04x:0x%04x\n", dev->vendor, dev->device);
1512 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_HT1000SB, quirk_disable_broadcom_boot_interrupt);
1513 DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_HT1000SB, quirk_disable_broadcom_boot_interrupt);
1516 * disable boot interrupts on AMD and ATI chipsets
1519 * NOIOAMODE needs to be disabled to disable "boot interrupts". For AMD 8131
1520 * rev. A0 and B0, NOIOAMODE needs to be disabled anyway to fix IO-APIC mode
1521 * (due to an erratum).
1523 #define AMD_813X_MISC 0x40
1524 #define AMD_813X_NOIOAMODE (1<<0)
1526 static void quirk_disable_amd_813x_boot_interrupt(struct pci_dev *dev)
1528 u32 pci_config_dword;
1533 pci_read_config_dword(dev, AMD_813X_MISC, &pci_config_dword);
1534 pci_config_dword &= ~AMD_813X_NOIOAMODE;
1535 pci_write_config_dword(dev, AMD_813X_MISC, pci_config_dword);
1537 printk(KERN_INFO "disabled boot interrupts on PCI device "
1538 "0x%04x:0x%04x\n", dev->vendor, dev->device);
1540 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8131_BRIDGE, quirk_disable_amd_813x_boot_interrupt);
1541 DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8132_BRIDGE, quirk_disable_amd_813x_boot_interrupt);
1543 #define AMD_8111_PCI_IRQ_ROUTING 0x56
1545 static void quirk_disable_amd_8111_boot_interrupt(struct pci_dev *dev)
1547 u16 pci_config_word;
1552 pci_read_config_word(dev, AMD_8111_PCI_IRQ_ROUTING, &pci_config_word);
1553 if (!pci_config_word) {
1554 printk(KERN_INFO "boot interrupts on PCI device 0x%04x:0x%04x "
1555 "already disabled\n",
1556 dev->vendor, dev->device);
1559 pci_write_config_word(dev, AMD_8111_PCI_IRQ_ROUTING, 0);
1560 printk(KERN_INFO "disabled boot interrupts on PCI device "
1561 "0x%04x:0x%04x\n", dev->vendor, dev->device);
1563 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8111_SMBUS, quirk_disable_amd_8111_boot_interrupt);
1564 DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8111_SMBUS, quirk_disable_amd_8111_boot_interrupt);
1565 #endif /* CONFIG_X86_IO_APIC */
1568 * Toshiba TC86C001 IDE controller reports the standard 8-byte BAR0 size
1569 * but the PIO transfers won't work if BAR0 falls at the odd 8 bytes.
1570 * Re-allocate the region if needed...
1572 static void __init quirk_tc86c001_ide(struct pci_dev *dev)
1574 struct resource *r = &dev->resource[0];
1576 if (r->start & 0x8) {
1581 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_TOSHIBA_2,
1582 PCI_DEVICE_ID_TOSHIBA_TC86C001_IDE,
1583 quirk_tc86c001_ide);
1585 static void __devinit quirk_netmos(struct pci_dev *dev)
1587 unsigned int num_parallel = (dev->subsystem_device & 0xf0) >> 4;
1588 unsigned int num_serial = dev->subsystem_device & 0xf;
1591 * These Netmos parts are multiport serial devices with optional
1592 * parallel ports. Even when parallel ports are present, they
1593 * are identified as class SERIAL, which means the serial driver
1594 * will claim them. To prevent this, mark them as class OTHER.
1595 * These combo devices should be claimed by parport_serial.
1597 * The subdevice ID is of the form 0x00PS, where <P> is the number
1598 * of parallel ports and <S> is the number of serial ports.
1600 switch (dev->device) {
1601 case PCI_DEVICE_ID_NETMOS_9735:
1602 case PCI_DEVICE_ID_NETMOS_9745:
1603 case PCI_DEVICE_ID_NETMOS_9835:
1604 case PCI_DEVICE_ID_NETMOS_9845:
1605 case PCI_DEVICE_ID_NETMOS_9855:
1606 if ((dev->class >> 8) == PCI_CLASS_COMMUNICATION_SERIAL &&
1608 dev_info(&dev->dev, "Netmos %04x (%u parallel, "
1609 "%u serial); changing class SERIAL to OTHER "
1610 "(use parport_serial)\n",
1611 dev->device, num_parallel, num_serial);
1612 dev->class = (PCI_CLASS_COMMUNICATION_OTHER << 8) |
1613 (dev->class & 0xff);
1617 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NETMOS, PCI_ANY_ID, quirk_netmos);
1619 static void __devinit quirk_e100_interrupt(struct pci_dev *dev)
1626 switch (dev->device) {
1627 /* PCI IDs taken from drivers/net/e100.c */
1629 case 0x1030 ... 0x1034:
1630 case 0x1038 ... 0x103E:
1631 case 0x1050 ... 0x1057:
1633 case 0x1064 ... 0x106B:
1634 case 0x1091 ... 0x1095:
1647 * Some firmware hands off the e100 with interrupts enabled,
1648 * which can cause a flood of interrupts if packets are
1649 * received before the driver attaches to the device. So
1650 * disable all e100 interrupts here. The driver will
1651 * re-enable them when it's ready.
1653 pci_read_config_word(dev, PCI_COMMAND, &command);
1655 if (!(command & PCI_COMMAND_MEMORY) || !pci_resource_start(dev, 0))
1659 * Check that the device is in the D0 power state. If it's not,
1660 * there is no point to look any further.
1662 pm = pci_find_capability(dev, PCI_CAP_ID_PM);
1664 pci_read_config_word(dev, pm + PCI_PM_CTRL, &pmcsr);
1665 if ((pmcsr & PCI_PM_CTRL_STATE_MASK) != PCI_D0)
1669 /* Convert from PCI bus to resource space. */
1670 csr = ioremap(pci_resource_start(dev, 0), 8);
1672 dev_warn(&dev->dev, "Can't map e100 registers\n");
1676 cmd_hi = readb(csr + 3);
1678 dev_warn(&dev->dev, "Firmware left e100 interrupts enabled; "
1685 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_ANY_ID, quirk_e100_interrupt);
1687 static void __devinit fixup_rev1_53c810(struct pci_dev* dev)
1689 /* rev 1 ncr53c810 chips don't set the class at all which means
1690 * they don't get their resources remapped. Fix that here.
1693 if (dev->class == PCI_CLASS_NOT_DEFINED) {
1694 dev_info(&dev->dev, "NCR 53c810 rev 1 detected; setting PCI class\n");
1695 dev->class = PCI_CLASS_STORAGE_SCSI;
1698 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NCR, PCI_DEVICE_ID_NCR_53C810, fixup_rev1_53c810);
1700 /* Enable 1k I/O space granularity on the Intel P64H2 */
1701 static void __devinit quirk_p64h2_1k_io(struct pci_dev *dev)
1704 u8 io_base_lo, io_limit_lo;
1705 unsigned long base, limit;
1706 struct resource *res = dev->resource + PCI_BRIDGE_RESOURCES;
1708 pci_read_config_word(dev, 0x40, &en1k);
1711 dev_info(&dev->dev, "Enable I/O Space to 1KB granularity\n");
1713 pci_read_config_byte(dev, PCI_IO_BASE, &io_base_lo);
1714 pci_read_config_byte(dev, PCI_IO_LIMIT, &io_limit_lo);
1715 base = (io_base_lo & (PCI_IO_RANGE_MASK | 0x0c)) << 8;
1716 limit = (io_limit_lo & (PCI_IO_RANGE_MASK | 0x0c)) << 8;
1718 if (base <= limit) {
1720 res->end = limit + 0x3ff;
1724 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x1460, quirk_p64h2_1k_io);
1726 /* Fix the IOBL_ADR for 1k I/O space granularity on the Intel P64H2
1727 * The IOBL_ADR gets re-written to 4k boundaries in pci_setup_bridge()
1728 * in drivers/pci/setup-bus.c
1730 static void __devinit quirk_p64h2_1k_io_fix_iobl(struct pci_dev *dev)
1732 u16 en1k, iobl_adr, iobl_adr_1k;
1733 struct resource *res = dev->resource + PCI_BRIDGE_RESOURCES;
1735 pci_read_config_word(dev, 0x40, &en1k);
1738 pci_read_config_word(dev, PCI_IO_BASE, &iobl_adr);
1740 iobl_adr_1k = iobl_adr | (res->start >> 8) | (res->end & 0xfc00);
1742 if (iobl_adr != iobl_adr_1k) {
1743 dev_info(&dev->dev, "Fixing P64H2 IOBL_ADR from 0x%x to 0x%x for 1KB granularity\n",
1744 iobl_adr,iobl_adr_1k);
1745 pci_write_config_word(dev, PCI_IO_BASE, iobl_adr_1k);
1749 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x1460, quirk_p64h2_1k_io_fix_iobl);
1751 /* Under some circumstances, AER is not linked with extended capabilities.
1752 * Force it to be linked by setting the corresponding control bit in the
1755 static void quirk_nvidia_ck804_pcie_aer_ext_cap(struct pci_dev *dev)
1758 if (pci_read_config_byte(dev, 0xf41, &b) == 0) {
1760 pci_write_config_byte(dev, 0xf41, b | 0x20);
1762 "Linking AER extended capability\n");
1766 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_CK804_PCIE,
1767 quirk_nvidia_ck804_pcie_aer_ext_cap);
1768 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_CK804_PCIE,
1769 quirk_nvidia_ck804_pcie_aer_ext_cap);
1771 static void __devinit quirk_via_cx700_pci_parking_caching(struct pci_dev *dev)
1774 * Disable PCI Bus Parking and PCI Master read caching on CX700
1775 * which causes unspecified timing errors with a VT6212L on the PCI
1776 * bus leading to USB2.0 packet loss. The defaults are that these
1777 * features are turned off but some BIOSes turn them on.
1781 if (pci_read_config_byte(dev, 0x76, &b) == 0) {
1783 /* Turn off PCI Bus Parking */
1784 pci_write_config_byte(dev, 0x76, b ^ 0x40);
1787 "Disabling VIA CX700 PCI parking\n");
1791 if (pci_read_config_byte(dev, 0x72, &b) == 0) {
1793 /* Turn off PCI Master read caching */
1794 pci_write_config_byte(dev, 0x72, 0x0);
1796 /* Set PCI Master Bus time-out to "1x16 PCLK" */
1797 pci_write_config_byte(dev, 0x75, 0x1);
1799 /* Disable "Read FIFO Timer" */
1800 pci_write_config_byte(dev, 0x77, 0x0);
1803 "Disabling VIA CX700 PCI caching\n");
1807 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_VIA, 0x324e, quirk_via_cx700_pci_parking_caching);
1810 * For Broadcom 5706, 5708, 5709 rev. A nics, any read beyond the
1811 * VPD end tag will hang the device. This problem was initially
1812 * observed when a vpd entry was created in sysfs
1813 * ('/sys/bus/pci/devices/<id>/vpd'). A read to this sysfs entry
1814 * will dump 32k of data. Reading a full 32k will cause an access
1815 * beyond the VPD end tag causing the device to hang. Once the device
1816 * is hung, the bnx2 driver will not be able to reset the device.
1817 * We believe that it is legal to read beyond the end tag and
1818 * therefore the solution is to limit the read/write length.
1820 static void __devinit quirk_brcm_570x_limit_vpd(struct pci_dev *dev)
1823 * Only disable the VPD capability for 5706, 5706S, 5708,
1824 * 5708S and 5709 rev. A
1826 if ((dev->device == PCI_DEVICE_ID_NX2_5706) ||
1827 (dev->device == PCI_DEVICE_ID_NX2_5706S) ||
1828 (dev->device == PCI_DEVICE_ID_NX2_5708) ||
1829 (dev->device == PCI_DEVICE_ID_NX2_5708S) ||
1830 ((dev->device == PCI_DEVICE_ID_NX2_5709) &&
1831 (dev->revision & 0xf0) == 0x0)) {
1833 dev->vpd->len = 0x80;
1837 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_BROADCOM,
1838 PCI_DEVICE_ID_NX2_5706,
1839 quirk_brcm_570x_limit_vpd);
1840 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_BROADCOM,
1841 PCI_DEVICE_ID_NX2_5706S,
1842 quirk_brcm_570x_limit_vpd);
1843 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_BROADCOM,
1844 PCI_DEVICE_ID_NX2_5708,
1845 quirk_brcm_570x_limit_vpd);
1846 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_BROADCOM,
1847 PCI_DEVICE_ID_NX2_5708S,
1848 quirk_brcm_570x_limit_vpd);
1849 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_BROADCOM,
1850 PCI_DEVICE_ID_NX2_5709,
1851 quirk_brcm_570x_limit_vpd);
1852 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_BROADCOM,
1853 PCI_DEVICE_ID_NX2_5709S,
1854 quirk_brcm_570x_limit_vpd);
1856 #ifdef CONFIG_PCI_MSI
1857 /* Some chipsets do not support MSI. We cannot easily rely on setting
1858 * PCI_BUS_FLAGS_NO_MSI in its bus flags because there are actually
1859 * some other busses controlled by the chipset even if Linux is not
1860 * aware of it. Instead of setting the flag on all busses in the
1861 * machine, simply disable MSI globally.
1863 static void __init quirk_disable_all_msi(struct pci_dev *dev)
1866 dev_warn(&dev->dev, "MSI quirk detected; MSI disabled\n");
1868 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_GCNB_LE, quirk_disable_all_msi);
1869 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RS400_200, quirk_disable_all_msi);
1870 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RS480, quirk_disable_all_msi);
1871 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_VT3336, quirk_disable_all_msi);
1872 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_VT3351, quirk_disable_all_msi);
1874 /* Disable MSI on chipsets that are known to not support it */
1875 static void __devinit quirk_disable_msi(struct pci_dev *dev)
1877 if (dev->subordinate) {
1878 dev_warn(&dev->dev, "MSI quirk detected; "
1879 "subordinate MSI disabled\n");
1880 dev->subordinate->bus_flags |= PCI_BUS_FLAGS_NO_MSI;
1883 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8131_BRIDGE, quirk_disable_msi);
1885 /* Go through the list of Hypertransport capabilities and
1886 * return 1 if a HT MSI capability is found and enabled */
1887 static int __devinit msi_ht_cap_enabled(struct pci_dev *dev)
1891 pos = pci_find_ht_capability(dev, HT_CAPTYPE_MSI_MAPPING);
1892 while (pos && ttl--) {
1895 if (pci_read_config_byte(dev, pos + HT_MSI_FLAGS,
1898 dev_info(&dev->dev, "Found %s HT MSI Mapping\n",
1899 flags & HT_MSI_FLAGS_ENABLE ?
1900 "enabled" : "disabled");
1901 return (flags & HT_MSI_FLAGS_ENABLE) != 0;
1904 pos = pci_find_next_ht_capability(dev, pos,
1905 HT_CAPTYPE_MSI_MAPPING);
1910 /* Check the hypertransport MSI mapping to know whether MSI is enabled or not */
1911 static void __devinit quirk_msi_ht_cap(struct pci_dev *dev)
1913 if (dev->subordinate && !msi_ht_cap_enabled(dev)) {
1914 dev_warn(&dev->dev, "MSI quirk detected; "
1915 "subordinate MSI disabled\n");
1916 dev->subordinate->bus_flags |= PCI_BUS_FLAGS_NO_MSI;
1919 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_HT2000_PCIE,
1923 /* The nVidia CK804 chipset may have 2 HT MSI mappings.
1924 * MSI are supported if the MSI capability set in any of these mappings.
1926 static void __devinit quirk_nvidia_ck804_msi_ht_cap(struct pci_dev *dev)
1928 struct pci_dev *pdev;
1930 if (!dev->subordinate)
1933 /* check HT MSI cap on this chipset and the root one.
1934 * a single one having MSI is enough to be sure that MSI are supported.
1936 pdev = pci_get_slot(dev->bus, 0);
1939 if (!msi_ht_cap_enabled(dev) && !msi_ht_cap_enabled(pdev)) {
1940 dev_warn(&dev->dev, "MSI quirk detected; "
1941 "subordinate MSI disabled\n");
1942 dev->subordinate->bus_flags |= PCI_BUS_FLAGS_NO_MSI;
1946 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_CK804_PCIE,
1947 quirk_nvidia_ck804_msi_ht_cap);
1949 /* Force enable MSI mapping capability on HT bridges */
1950 static void __devinit ht_enable_msi_mapping(struct pci_dev *dev)
1954 pos = pci_find_ht_capability(dev, HT_CAPTYPE_MSI_MAPPING);
1955 while (pos && ttl--) {
1958 if (pci_read_config_byte(dev, pos + HT_MSI_FLAGS,
1960 dev_info(&dev->dev, "Enabling HT MSI Mapping\n");
1962 pci_write_config_byte(dev, pos + HT_MSI_FLAGS,
1963 flags | HT_MSI_FLAGS_ENABLE);
1965 pos = pci_find_next_ht_capability(dev, pos,
1966 HT_CAPTYPE_MSI_MAPPING);
1969 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SERVERWORKS,
1970 PCI_DEVICE_ID_SERVERWORKS_HT1000_PXB,
1971 ht_enable_msi_mapping);
1973 static void __devinit nv_msi_ht_cap_quirk(struct pci_dev *dev)
1975 struct pci_dev *host_bridge;
1979 * HT MSI mapping should be disabled on devices that are below
1980 * a non-Hypertransport host bridge. Locate the host bridge...
1982 host_bridge = pci_get_bus_and_slot(0, PCI_DEVFN(0, 0));
1983 if (host_bridge == NULL) {
1985 "nv_msi_ht_cap_quirk didn't locate host bridge\n");
1989 pos = pci_find_ht_capability(host_bridge, HT_CAPTYPE_SLAVE);
1991 /* Host bridge is to HT */
1992 ht_enable_msi_mapping(dev);
1996 /* Host bridge is not to HT, disable HT MSI mapping on this device */
1997 pos = pci_find_ht_capability(dev, HT_CAPTYPE_MSI_MAPPING);
1998 while (pos && ttl--) {
2001 if (pci_read_config_byte(dev, pos + HT_MSI_FLAGS,
2003 dev_info(&dev->dev, "Disabling HT MSI mapping");
2004 pci_write_config_byte(dev, pos + HT_MSI_FLAGS,
2005 flags & ~HT_MSI_FLAGS_ENABLE);
2007 pos = pci_find_next_ht_capability(dev, pos,
2008 HT_CAPTYPE_MSI_MAPPING);
2011 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID, nv_msi_ht_cap_quirk);
2012 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AL, PCI_ANY_ID, nv_msi_ht_cap_quirk);
2014 static void __devinit quirk_msi_intx_disable_bug(struct pci_dev *dev)
2016 dev->dev_flags |= PCI_DEV_FLAGS_MSI_INTX_DISABLE_BUG;
2018 static void __devinit quirk_msi_intx_disable_ati_bug(struct pci_dev *dev)
2022 /* SB700 MSI issue will be fixed at HW level from revision A21,
2023 * we need check PCI REVISION ID of SMBus controller to get SB700
2026 p = pci_get_device(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_SBX00_SMBUS,
2031 if ((p->revision < 0x3B) && (p->revision >= 0x30))
2032 dev->dev_flags |= PCI_DEV_FLAGS_MSI_INTX_DISABLE_BUG;
2035 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
2036 PCI_DEVICE_ID_TIGON3_5780,
2037 quirk_msi_intx_disable_bug);
2038 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
2039 PCI_DEVICE_ID_TIGON3_5780S,
2040 quirk_msi_intx_disable_bug);
2041 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
2042 PCI_DEVICE_ID_TIGON3_5714,
2043 quirk_msi_intx_disable_bug);
2044 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
2045 PCI_DEVICE_ID_TIGON3_5714S,
2046 quirk_msi_intx_disable_bug);
2047 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
2048 PCI_DEVICE_ID_TIGON3_5715,
2049 quirk_msi_intx_disable_bug);
2050 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
2051 PCI_DEVICE_ID_TIGON3_5715S,
2052 quirk_msi_intx_disable_bug);
2054 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4390,
2055 quirk_msi_intx_disable_ati_bug);
2056 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4391,
2057 quirk_msi_intx_disable_ati_bug);
2058 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4392,
2059 quirk_msi_intx_disable_ati_bug);
2060 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4393,
2061 quirk_msi_intx_disable_ati_bug);
2062 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4394,
2063 quirk_msi_intx_disable_ati_bug);
2065 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4373,
2066 quirk_msi_intx_disable_bug);
2067 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4374,
2068 quirk_msi_intx_disable_bug);
2069 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4375,
2070 quirk_msi_intx_disable_bug);
2072 #endif /* CONFIG_PCI_MSI */
2074 static void pci_do_fixups(struct pci_dev *dev, struct pci_fixup *f, struct pci_fixup *end)
2077 if ((f->vendor == dev->vendor || f->vendor == (u16) PCI_ANY_ID) &&
2078 (f->device == dev->device || f->device == (u16) PCI_ANY_ID)) {
2079 dev_dbg(&dev->dev, "calling %pF\n", f->hook);
2086 extern struct pci_fixup __start_pci_fixups_early[];
2087 extern struct pci_fixup __end_pci_fixups_early[];
2088 extern struct pci_fixup __start_pci_fixups_header[];
2089 extern struct pci_fixup __end_pci_fixups_header[];
2090 extern struct pci_fixup __start_pci_fixups_final[];
2091 extern struct pci_fixup __end_pci_fixups_final[];
2092 extern struct pci_fixup __start_pci_fixups_enable[];
2093 extern struct pci_fixup __end_pci_fixups_enable[];
2094 extern struct pci_fixup __start_pci_fixups_resume[];
2095 extern struct pci_fixup __end_pci_fixups_resume[];
2096 extern struct pci_fixup __start_pci_fixups_resume_early[];
2097 extern struct pci_fixup __end_pci_fixups_resume_early[];
2098 extern struct pci_fixup __start_pci_fixups_suspend[];
2099 extern struct pci_fixup __end_pci_fixups_suspend[];
2102 void pci_fixup_device(enum pci_fixup_pass pass, struct pci_dev *dev)
2104 struct pci_fixup *start, *end;
2107 case pci_fixup_early:
2108 start = __start_pci_fixups_early;
2109 end = __end_pci_fixups_early;
2112 case pci_fixup_header:
2113 start = __start_pci_fixups_header;
2114 end = __end_pci_fixups_header;
2117 case pci_fixup_final:
2118 start = __start_pci_fixups_final;
2119 end = __end_pci_fixups_final;
2122 case pci_fixup_enable:
2123 start = __start_pci_fixups_enable;
2124 end = __end_pci_fixups_enable;
2127 case pci_fixup_resume:
2128 start = __start_pci_fixups_resume;
2129 end = __end_pci_fixups_resume;
2132 case pci_fixup_resume_early:
2133 start = __start_pci_fixups_resume_early;
2134 end = __end_pci_fixups_resume_early;
2137 case pci_fixup_suspend:
2138 start = __start_pci_fixups_suspend;
2139 end = __end_pci_fixups_suspend;
2143 /* stupid compiler warning, you would think with an enum... */
2146 pci_do_fixups(dev, start, end);
2149 void pci_fixup_device(enum pci_fixup_pass pass, struct pci_dev *dev) {}
2151 EXPORT_SYMBOL(pci_fixup_device);