Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * This file contains work-arounds for many known PCI hardware | |
3 | * bugs. Devices present only on certain architectures (host | |
4 | * bridges et cetera) should be handled in arch-specific code. | |
5 | * | |
6 | * Note: any quirks for hotpluggable devices must _NOT_ be declared __init. | |
7 | * | |
8 | * Copyright (c) 1999 Martin Mares <mj@ucw.cz> | |
9 | * | |
7586269c DB |
10 | * Init/reset quirks for USB host controllers should be in the |
11 | * USB quirks file, where their drivers can access reuse it. | |
12 | * | |
1da177e4 LT |
13 | * The bridge optimization stuff has been removed. If you really |
14 | * have a silly BIOS which is unable to set your host bridge right, | |
15 | * use the PowerTweak utility (see http://powertweak.sourceforge.net). | |
16 | */ | |
17 | ||
1da177e4 LT |
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> | |
25be5e6c | 23 | #include <linux/acpi.h> |
bc56b9e0 | 24 | #include "pci.h" |
1da177e4 | 25 | |
bd8481e1 DT |
26 | /* 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 | */ | |
30 | static void __devinit quirk_mellanox_tavor(struct pci_dev *dev) | |
31 | { | |
32 | dev->broken_parity_status = 1; /* This device gives false positives */ | |
33 | } | |
34 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_MELLANOX,PCI_DEVICE_ID_MELLANOX_TAVOR,quirk_mellanox_tavor); | |
35 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_MELLANOX,PCI_DEVICE_ID_MELLANOX_TAVOR_BRIDGE,quirk_mellanox_tavor); | |
36 | ||
1da177e4 LT |
37 | /* Deal with broken BIOS'es that neglect to enable passive release, |
38 | which can cause problems in combination with the 82441FX/PPro MTRRs */ | |
39 | static void __devinit quirk_passive_release(struct pci_dev *dev) | |
40 | { | |
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 | } | |
55 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82441, quirk_passive_release ); | |
56 | ||
57 | /* The VIA VP2/VP3/MVP3 seem to have some 'features'. There may be a workaround | |
58 | but VIA don't answer queries. If you happen to have good contacts at VIA | |
59 | ask them for me please -- Alan | |
60 | ||
61 | This appears to be BIOS not version dependent. So presumably there is a | |
62 | chipset level fix */ | |
63 | int isa_dma_bridge_buggy; /* Exported */ | |
64 | ||
65 | static void __devinit quirk_isa_dma_hangs(struct pci_dev *dev) | |
66 | { | |
67 | if (!isa_dma_bridge_buggy) { | |
68 | isa_dma_bridge_buggy=1; | |
69 | printk(KERN_INFO "Activating ISA DMA hang workarounds.\n"); | |
70 | } | |
71 | } | |
72 | /* | |
73 | * Its not totally clear which chipsets are the problematic ones | |
74 | * We know 82C586 and 82C596 variants are affected. | |
75 | */ | |
76 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C586_0, quirk_isa_dma_hangs ); | |
77 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C596, quirk_isa_dma_hangs ); | |
78 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82371SB_0, quirk_isa_dma_hangs ); | |
79 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1533, quirk_isa_dma_hangs ); | |
80 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NEC, PCI_DEVICE_ID_NEC_CBUS_1, quirk_isa_dma_hangs ); | |
81 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NEC, PCI_DEVICE_ID_NEC_CBUS_2, quirk_isa_dma_hangs ); | |
82 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NEC, PCI_DEVICE_ID_NEC_CBUS_3, quirk_isa_dma_hangs ); | |
83 | ||
84 | int pci_pci_problems; | |
85 | ||
86 | /* | |
87 | * Chipsets where PCI->PCI transfers vanish or hang | |
88 | */ | |
89 | static void __devinit quirk_nopcipci(struct pci_dev *dev) | |
90 | { | |
91 | if ((pci_pci_problems & PCIPCI_FAIL)==0) { | |
92 | printk(KERN_INFO "Disabling direct PCI/PCI transfers.\n"); | |
93 | pci_pci_problems |= PCIPCI_FAIL; | |
94 | } | |
95 | } | |
236561e5 AC |
96 | |
97 | static void __devinit quirk_nopciamd(struct pci_dev *dev) | |
98 | { | |
99 | u8 rev; | |
100 | pci_read_config_byte(dev, 0x08, &rev); | |
101 | if (rev == 0x13) { | |
102 | /* Erratum 24 */ | |
103 | printk(KERN_INFO "Chipset erratum: Disabling direct PCI/AGP transfers.\n"); | |
104 | pci_pci_problems |= PCIAGP_FAIL; | |
105 | } | |
106 | } | |
107 | ||
1da177e4 LT |
108 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_5597, quirk_nopcipci ); |
109 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_496, quirk_nopcipci ); | |
236561e5 | 110 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8151_0, quirk_nopciamd ); |
1da177e4 LT |
111 | |
112 | /* | |
113 | * Triton requires workarounds to be used by the drivers | |
114 | */ | |
115 | static void __devinit quirk_triton(struct pci_dev *dev) | |
116 | { | |
117 | if ((pci_pci_problems&PCIPCI_TRITON)==0) { | |
118 | printk(KERN_INFO "Limiting direct PCI/PCI transfers.\n"); | |
119 | pci_pci_problems |= PCIPCI_TRITON; | |
120 | } | |
121 | } | |
122 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82437, quirk_triton ); | |
123 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82437VX, quirk_triton ); | |
124 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82439, quirk_triton ); | |
125 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82439TX, quirk_triton ); | |
126 | ||
127 | /* | |
128 | * VIA Apollo KT133 needs PCI latency patch | |
129 | * Made according to a windows driver based patch by George E. Breese | |
130 | * see PCI Latency Adjust on http://www.viahardware.com/download/viatweak.shtm | |
131 | * Also see http://www.au-ja.org/review-kt133a-1-en.phtml for | |
132 | * the info on which Mr Breese based his work. | |
133 | * | |
134 | * Updated based on further information from the site and also on | |
135 | * information provided by VIA | |
136 | */ | |
137 | static void __devinit quirk_vialatency(struct pci_dev *dev) | |
138 | { | |
139 | struct pci_dev *p; | |
140 | u8 rev; | |
141 | u8 busarb; | |
142 | /* Ok we have a potential problem chipset here. Now see if we have | |
143 | a buggy southbridge */ | |
144 | ||
145 | p = pci_get_device(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686, NULL); | |
146 | if (p!=NULL) { | |
147 | pci_read_config_byte(p, PCI_CLASS_REVISION, &rev); | |
148 | /* 0x40 - 0x4f == 686B, 0x10 - 0x2f == 686A; thanks Dan Hollis */ | |
149 | /* Check for buggy part revisions */ | |
150 | if (rev < 0x40 || rev > 0x42) | |
151 | goto exit; | |
152 | } else { | |
153 | p = pci_get_device(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8231, NULL); | |
154 | if (p==NULL) /* No problem parts */ | |
155 | goto exit; | |
156 | pci_read_config_byte(p, PCI_CLASS_REVISION, &rev); | |
157 | /* Check for buggy part revisions */ | |
158 | if (rev < 0x10 || rev > 0x12) | |
159 | goto exit; | |
160 | } | |
161 | ||
162 | /* | |
163 | * Ok we have the problem. Now set the PCI master grant to | |
164 | * occur every master grant. The apparent bug is that under high | |
165 | * PCI load (quite common in Linux of course) you can get data | |
166 | * loss when the CPU is held off the bus for 3 bus master requests | |
167 | * This happens to include the IDE controllers.... | |
168 | * | |
169 | * VIA only apply this fix when an SB Live! is present but under | |
170 | * both Linux and Windows this isnt enough, and we have seen | |
171 | * corruption without SB Live! but with things like 3 UDMA IDE | |
172 | * controllers. So we ignore that bit of the VIA recommendation.. | |
173 | */ | |
174 | ||
175 | pci_read_config_byte(dev, 0x76, &busarb); | |
176 | /* Set bit 4 and bi 5 of byte 76 to 0x01 | |
177 | "Master priority rotation on every PCI master grant */ | |
178 | busarb &= ~(1<<5); | |
179 | busarb |= (1<<4); | |
180 | pci_write_config_byte(dev, 0x76, busarb); | |
181 | printk(KERN_INFO "Applying VIA southbridge workaround.\n"); | |
182 | exit: | |
183 | pci_dev_put(p); | |
184 | } | |
185 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8363_0, quirk_vialatency ); | |
186 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8371_1, quirk_vialatency ); | |
187 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8361, quirk_vialatency ); | |
188 | ||
189 | /* | |
190 | * VIA Apollo VP3 needs ETBF on BT848/878 | |
191 | */ | |
192 | static void __devinit quirk_viaetbf(struct pci_dev *dev) | |
193 | { | |
194 | if ((pci_pci_problems&PCIPCI_VIAETBF)==0) { | |
195 | printk(KERN_INFO "Limiting direct PCI/PCI transfers.\n"); | |
196 | pci_pci_problems |= PCIPCI_VIAETBF; | |
197 | } | |
198 | } | |
199 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C597_0, quirk_viaetbf ); | |
200 | ||
201 | static void __devinit quirk_vsfx(struct pci_dev *dev) | |
202 | { | |
203 | if ((pci_pci_problems&PCIPCI_VSFX)==0) { | |
204 | printk(KERN_INFO "Limiting direct PCI/PCI transfers.\n"); | |
205 | pci_pci_problems |= PCIPCI_VSFX; | |
206 | } | |
207 | } | |
208 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C576, quirk_vsfx ); | |
209 | ||
210 | /* | |
211 | * Ali Magik requires workarounds to be used by the drivers | |
212 | * that DMA to AGP space. Latency must be set to 0xA and triton | |
213 | * workaround applied too | |
214 | * [Info kindly provided by ALi] | |
215 | */ | |
216 | static void __init quirk_alimagik(struct pci_dev *dev) | |
217 | { | |
218 | if ((pci_pci_problems&PCIPCI_ALIMAGIK)==0) { | |
219 | printk(KERN_INFO "Limiting direct PCI/PCI transfers.\n"); | |
220 | pci_pci_problems |= PCIPCI_ALIMAGIK|PCIPCI_TRITON; | |
221 | } | |
222 | } | |
223 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1647, quirk_alimagik ); | |
224 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1651, quirk_alimagik ); | |
225 | ||
226 | /* | |
227 | * Natoma has some interesting boundary conditions with Zoran stuff | |
228 | * at least | |
229 | */ | |
230 | static void __devinit quirk_natoma(struct pci_dev *dev) | |
231 | { | |
232 | if ((pci_pci_problems&PCIPCI_NATOMA)==0) { | |
233 | printk(KERN_INFO "Limiting direct PCI/PCI transfers.\n"); | |
234 | pci_pci_problems |= PCIPCI_NATOMA; | |
235 | } | |
236 | } | |
237 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82441, quirk_natoma ); | |
238 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443LX_0, quirk_natoma ); | |
239 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443LX_1, quirk_natoma ); | |
240 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443BX_0, quirk_natoma ); | |
241 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443BX_1, quirk_natoma ); | |
242 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443BX_2, quirk_natoma ); | |
243 | ||
244 | /* | |
245 | * This chip can cause PCI parity errors if config register 0xA0 is read | |
246 | * while DMAs are occurring. | |
247 | */ | |
248 | static void __devinit quirk_citrine(struct pci_dev *dev) | |
249 | { | |
250 | dev->cfg_size = 0xA0; | |
251 | } | |
252 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, quirk_citrine ); | |
253 | ||
254 | /* | |
255 | * S3 868 and 968 chips report region size equal to 32M, but they decode 64M. | |
256 | * If it's needed, re-allocate the region. | |
257 | */ | |
258 | static void __devinit quirk_s3_64M(struct pci_dev *dev) | |
259 | { | |
260 | struct resource *r = &dev->resource[0]; | |
261 | ||
262 | if ((r->start & 0x3ffffff) || r->end != r->start + 0x3ffffff) { | |
263 | r->start = 0; | |
264 | r->end = 0x3ffffff; | |
265 | } | |
266 | } | |
267 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_S3, PCI_DEVICE_ID_S3_868, quirk_s3_64M ); | |
268 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_S3, PCI_DEVICE_ID_S3_968, quirk_s3_64M ); | |
269 | ||
6693e74a LT |
270 | static void __devinit quirk_io_region(struct pci_dev *dev, unsigned region, |
271 | unsigned size, int nr, const char *name) | |
1da177e4 LT |
272 | { |
273 | region &= ~(size-1); | |
274 | if (region) { | |
085ae41f | 275 | struct pci_bus_region bus_region; |
1da177e4 LT |
276 | struct resource *res = dev->resource + nr; |
277 | ||
278 | res->name = pci_name(dev); | |
279 | res->start = region; | |
280 | res->end = region + size - 1; | |
281 | res->flags = IORESOURCE_IO; | |
085ae41f DM |
282 | |
283 | /* Convert from PCI bus to resource space. */ | |
284 | bus_region.start = res->start; | |
285 | bus_region.end = res->end; | |
286 | pcibios_bus_to_resource(dev, res, &bus_region); | |
287 | ||
1da177e4 | 288 | pci_claim_resource(dev, nr); |
6693e74a | 289 | printk("PCI quirk: region %04x-%04x claimed by %s\n", region, region + size - 1, name); |
1da177e4 LT |
290 | } |
291 | } | |
292 | ||
293 | /* | |
294 | * ATI Northbridge setups MCE the processor if you even | |
295 | * read somewhere between 0x3b0->0x3bb or read 0x3d3 | |
296 | */ | |
297 | static void __devinit quirk_ati_exploding_mce(struct pci_dev *dev) | |
298 | { | |
299 | printk(KERN_INFO "ATI Northbridge, reserving I/O ports 0x3b0 to 0x3bb.\n"); | |
300 | /* Mae rhaid i ni beidio ag edrych ar y lleoliadiau I/O hyn */ | |
301 | request_region(0x3b0, 0x0C, "RadeonIGP"); | |
302 | request_region(0x3d3, 0x01, "RadeonIGP"); | |
303 | } | |
304 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RS100, quirk_ati_exploding_mce ); | |
305 | ||
306 | /* | |
307 | * Let's make the southbridge information explicit instead | |
308 | * of having to worry about people probing the ACPI areas, | |
309 | * for example.. (Yes, it happens, and if you read the wrong | |
310 | * ACPI register it will put the machine to sleep with no | |
311 | * way of waking it up again. Bummer). | |
312 | * | |
313 | * ALI M7101: Two IO regions pointed to by words at | |
314 | * 0xE0 (64 bytes of ACPI registers) | |
315 | * 0xE2 (32 bytes of SMB registers) | |
316 | */ | |
317 | static void __devinit quirk_ali7101_acpi(struct pci_dev *dev) | |
318 | { | |
319 | u16 region; | |
320 | ||
321 | pci_read_config_word(dev, 0xE0, ®ion); | |
6693e74a | 322 | quirk_io_region(dev, region, 64, PCI_BRIDGE_RESOURCES, "ali7101 ACPI"); |
1da177e4 | 323 | pci_read_config_word(dev, 0xE2, ®ion); |
6693e74a | 324 | quirk_io_region(dev, region, 32, PCI_BRIDGE_RESOURCES+1, "ali7101 SMB"); |
1da177e4 LT |
325 | } |
326 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M7101, quirk_ali7101_acpi ); | |
327 | ||
6693e74a LT |
328 | static void piix4_io_quirk(struct pci_dev *dev, const char *name, unsigned int port, unsigned int enable) |
329 | { | |
330 | u32 devres; | |
331 | u32 mask, size, base; | |
332 | ||
333 | pci_read_config_dword(dev, port, &devres); | |
334 | if ((devres & enable) != enable) | |
335 | return; | |
336 | mask = (devres >> 16) & 15; | |
337 | base = devres & 0xffff; | |
338 | size = 16; | |
339 | for (;;) { | |
340 | unsigned bit = size >> 1; | |
341 | if ((bit & mask) == bit) | |
342 | break; | |
343 | size = bit; | |
344 | } | |
345 | /* | |
346 | * For now we only print it out. Eventually we'll want to | |
347 | * reserve it (at least if it's in the 0x1000+ range), but | |
348 | * let's get enough confirmation reports first. | |
349 | */ | |
350 | base &= -size; | |
351 | printk("%s PIO at %04x-%04x\n", name, base, base + size - 1); | |
352 | } | |
353 | ||
354 | static void piix4_mem_quirk(struct pci_dev *dev, const char *name, unsigned int port, unsigned int enable) | |
355 | { | |
356 | u32 devres; | |
357 | u32 mask, size, base; | |
358 | ||
359 | pci_read_config_dword(dev, port, &devres); | |
360 | if ((devres & enable) != enable) | |
361 | return; | |
362 | base = devres & 0xffff0000; | |
363 | mask = (devres & 0x3f) << 16; | |
364 | size = 128 << 16; | |
365 | for (;;) { | |
366 | unsigned bit = size >> 1; | |
367 | if ((bit & mask) == bit) | |
368 | break; | |
369 | size = bit; | |
370 | } | |
371 | /* | |
372 | * For now we only print it out. Eventually we'll want to | |
373 | * reserve it, but let's get enough confirmation reports first. | |
374 | */ | |
375 | base &= -size; | |
376 | printk("%s MMIO at %04x-%04x\n", name, base, base + size - 1); | |
377 | } | |
378 | ||
1da177e4 LT |
379 | /* |
380 | * PIIX4 ACPI: Two IO regions pointed to by longwords at | |
381 | * 0x40 (64 bytes of ACPI registers) | |
08db2a70 | 382 | * 0x90 (16 bytes of SMB registers) |
6693e74a | 383 | * and a few strange programmable PIIX4 device resources. |
1da177e4 LT |
384 | */ |
385 | static void __devinit quirk_piix4_acpi(struct pci_dev *dev) | |
386 | { | |
6693e74a | 387 | u32 region, res_a; |
1da177e4 LT |
388 | |
389 | pci_read_config_dword(dev, 0x40, ®ion); | |
6693e74a | 390 | quirk_io_region(dev, region, 64, PCI_BRIDGE_RESOURCES, "PIIX4 ACPI"); |
1da177e4 | 391 | pci_read_config_dword(dev, 0x90, ®ion); |
08db2a70 | 392 | quirk_io_region(dev, region, 16, PCI_BRIDGE_RESOURCES+1, "PIIX4 SMB"); |
6693e74a LT |
393 | |
394 | /* Device resource A has enables for some of the other ones */ | |
395 | pci_read_config_dword(dev, 0x5c, &res_a); | |
396 | ||
397 | piix4_io_quirk(dev, "PIIX4 devres B", 0x60, 3 << 21); | |
398 | piix4_io_quirk(dev, "PIIX4 devres C", 0x64, 3 << 21); | |
399 | ||
400 | /* Device resource D is just bitfields for static resources */ | |
401 | ||
402 | /* Device 12 enabled? */ | |
403 | if (res_a & (1 << 29)) { | |
404 | piix4_io_quirk(dev, "PIIX4 devres E", 0x68, 1 << 20); | |
405 | piix4_mem_quirk(dev, "PIIX4 devres F", 0x6c, 1 << 7); | |
406 | } | |
407 | /* Device 13 enabled? */ | |
408 | if (res_a & (1 << 30)) { | |
409 | piix4_io_quirk(dev, "PIIX4 devres G", 0x70, 1 << 20); | |
410 | piix4_mem_quirk(dev, "PIIX4 devres H", 0x74, 1 << 7); | |
411 | } | |
412 | piix4_io_quirk(dev, "PIIX4 devres I", 0x78, 1 << 20); | |
413 | piix4_io_quirk(dev, "PIIX4 devres J", 0x7c, 1 << 20); | |
1da177e4 LT |
414 | } |
415 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82371AB_3, quirk_piix4_acpi ); | |
c6764664 | 416 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443MX_3, quirk_piix4_acpi ); |
1da177e4 LT |
417 | |
418 | /* | |
419 | * ICH4, ICH4-M, ICH5, ICH5-M ACPI: Three IO regions pointed to by longwords at | |
420 | * 0x40 (128 bytes of ACPI, GPIO & TCO registers) | |
421 | * 0x58 (64 bytes of GPIO I/O space) | |
422 | */ | |
423 | static void __devinit quirk_ich4_lpc_acpi(struct pci_dev *dev) | |
424 | { | |
425 | u32 region; | |
426 | ||
427 | pci_read_config_dword(dev, 0x40, ®ion); | |
6693e74a | 428 | quirk_io_region(dev, region, 128, PCI_BRIDGE_RESOURCES, "ICH4 ACPI/GPIO/TCO"); |
1da177e4 LT |
429 | |
430 | pci_read_config_dword(dev, 0x58, ®ion); | |
6693e74a | 431 | quirk_io_region(dev, region, 64, PCI_BRIDGE_RESOURCES+1, "ICH4 GPIO"); |
1da177e4 LT |
432 | } |
433 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801AA_0, quirk_ich4_lpc_acpi ); | |
434 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801AB_0, quirk_ich4_lpc_acpi ); | |
435 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_0, quirk_ich4_lpc_acpi ); | |
436 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_10, quirk_ich4_lpc_acpi ); | |
437 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_0, quirk_ich4_lpc_acpi ); | |
438 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_12, quirk_ich4_lpc_acpi ); | |
439 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_0, quirk_ich4_lpc_acpi ); | |
440 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_12, quirk_ich4_lpc_acpi ); | |
441 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801EB_0, quirk_ich4_lpc_acpi ); | |
3aa8c4fe | 442 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB_1, quirk_ich4_lpc_acpi ); |
1da177e4 | 443 | |
2cea752f M |
444 | static void __devinit quirk_ich6_lpc_acpi(struct pci_dev *dev) |
445 | { | |
446 | u32 region; | |
447 | ||
448 | pci_read_config_dword(dev, 0x40, ®ion); | |
449 | quirk_io_region(dev, region, 128, PCI_BRIDGE_RESOURCES, "ICH6 ACPI/GPIO/TCO"); | |
450 | ||
451 | pci_read_config_dword(dev, 0x48, ®ion); | |
452 | quirk_io_region(dev, region, 64, PCI_BRIDGE_RESOURCES+1, "ICH6 GPIO"); | |
453 | } | |
65ae4ddd | 454 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_0, quirk_ich6_lpc_acpi ); |
2cea752f | 455 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1, quirk_ich6_lpc_acpi ); |
bacedce3 DR |
456 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH7_0, quirk_ich6_lpc_acpi ); |
457 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH7_1, quirk_ich6_lpc_acpi ); | |
458 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH7_31, quirk_ich6_lpc_acpi ); | |
459 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH8_0, quirk_ich6_lpc_acpi ); | |
460 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH8_2, quirk_ich6_lpc_acpi ); | |
461 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH8_3, quirk_ich6_lpc_acpi ); | |
2cea752f | 462 | |
1da177e4 LT |
463 | /* |
464 | * VIA ACPI: One IO region pointed to by longword at | |
465 | * 0x48 or 0x20 (256 bytes of ACPI registers) | |
466 | */ | |
467 | static void __devinit quirk_vt82c586_acpi(struct pci_dev *dev) | |
468 | { | |
469 | u8 rev; | |
470 | u32 region; | |
471 | ||
472 | pci_read_config_byte(dev, PCI_CLASS_REVISION, &rev); | |
473 | if (rev & 0x10) { | |
474 | pci_read_config_dword(dev, 0x48, ®ion); | |
475 | region &= PCI_BASE_ADDRESS_IO_MASK; | |
6693e74a | 476 | quirk_io_region(dev, region, 256, PCI_BRIDGE_RESOURCES, "vt82c586 ACPI"); |
1da177e4 LT |
477 | } |
478 | } | |
479 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C586_3, quirk_vt82c586_acpi ); | |
480 | ||
481 | /* | |
482 | * VIA VT82C686 ACPI: Three IO region pointed to by (long)words at | |
483 | * 0x48 (256 bytes of ACPI registers) | |
484 | * 0x70 (128 bytes of hardware monitoring register) | |
485 | * 0x90 (16 bytes of SMB registers) | |
486 | */ | |
487 | static void __devinit quirk_vt82c686_acpi(struct pci_dev *dev) | |
488 | { | |
489 | u16 hm; | |
490 | u32 smb; | |
491 | ||
492 | quirk_vt82c586_acpi(dev); | |
493 | ||
494 | pci_read_config_word(dev, 0x70, &hm); | |
495 | hm &= PCI_BASE_ADDRESS_IO_MASK; | |
02f313b2 | 496 | quirk_io_region(dev, hm, 128, PCI_BRIDGE_RESOURCES + 1, "vt82c686 HW-mon"); |
1da177e4 LT |
497 | |
498 | pci_read_config_dword(dev, 0x90, &smb); | |
499 | smb &= PCI_BASE_ADDRESS_IO_MASK; | |
02f313b2 | 500 | quirk_io_region(dev, smb, 16, PCI_BRIDGE_RESOURCES + 2, "vt82c686 SMB"); |
1da177e4 LT |
501 | } |
502 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686_4, quirk_vt82c686_acpi ); | |
503 | ||
6d85f29b IK |
504 | /* |
505 | * VIA VT8235 ISA Bridge: Two IO regions pointed to by words at | |
506 | * 0x88 (128 bytes of power management registers) | |
507 | * 0xd0 (16 bytes of SMB registers) | |
508 | */ | |
509 | static void __devinit quirk_vt8235_acpi(struct pci_dev *dev) | |
510 | { | |
511 | u16 pm, smb; | |
512 | ||
513 | pci_read_config_word(dev, 0x88, &pm); | |
514 | pm &= PCI_BASE_ADDRESS_IO_MASK; | |
6693e74a | 515 | quirk_io_region(dev, pm, 128, PCI_BRIDGE_RESOURCES, "vt8235 PM"); |
6d85f29b IK |
516 | |
517 | pci_read_config_word(dev, 0xd0, &smb); | |
518 | smb &= PCI_BASE_ADDRESS_IO_MASK; | |
6693e74a | 519 | quirk_io_region(dev, smb, 16, PCI_BRIDGE_RESOURCES + 1, "vt8235 SMB"); |
6d85f29b IK |
520 | } |
521 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8235, quirk_vt8235_acpi); | |
522 | ||
1da177e4 LT |
523 | |
524 | #ifdef CONFIG_X86_IO_APIC | |
525 | ||
526 | #include <asm/io_apic.h> | |
527 | ||
528 | /* | |
529 | * VIA 686A/B: If an IO-APIC is active, we need to route all on-chip | |
530 | * devices to the external APIC. | |
531 | * | |
532 | * TODO: When we have device-specific interrupt routers, | |
533 | * this code will go away from quirks. | |
534 | */ | |
535 | static void __devinit quirk_via_ioapic(struct pci_dev *dev) | |
536 | { | |
537 | u8 tmp; | |
538 | ||
539 | if (nr_ioapics < 1) | |
540 | tmp = 0; /* nothing routed to external APIC */ | |
541 | else | |
542 | tmp = 0x1f; /* all known bits (4-0) routed to external APIC */ | |
543 | ||
544 | printk(KERN_INFO "PCI: %sbling Via external APIC routing\n", | |
545 | tmp == 0 ? "Disa" : "Ena"); | |
546 | ||
547 | /* Offset 0x58: External APIC IRQ output control */ | |
548 | pci_write_config_byte (dev, 0x58, tmp); | |
549 | } | |
550 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686, quirk_via_ioapic ); | |
551 | ||
a1740913 KW |
552 | /* |
553 | * VIA 8237: Some BIOSs don't set the 'Bypass APIC De-Assert Message' Bit. | |
554 | * This leads to doubled level interrupt rates. | |
555 | * Set this bit to get rid of cycle wastage. | |
556 | * Otherwise uncritical. | |
557 | */ | |
558 | static void __devinit quirk_via_vt8237_bypass_apic_deassert(struct pci_dev *dev) | |
559 | { | |
560 | u8 misc_control2; | |
561 | #define BYPASS_APIC_DEASSERT 8 | |
562 | ||
563 | pci_read_config_byte(dev, 0x5B, &misc_control2); | |
564 | if (!(misc_control2 & BYPASS_APIC_DEASSERT)) { | |
565 | printk(KERN_INFO "PCI: Bypassing VIA 8237 APIC De-Assert Message\n"); | |
566 | pci_write_config_byte(dev, 0x5B, misc_control2|BYPASS_APIC_DEASSERT); | |
567 | } | |
568 | } | |
569 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, quirk_via_vt8237_bypass_apic_deassert); | |
570 | ||
1da177e4 LT |
571 | /* |
572 | * The AMD io apic can hang the box when an apic irq is masked. | |
573 | * We check all revs >= B0 (yet not in the pre production!) as the bug | |
574 | * is currently marked NoFix | |
575 | * | |
576 | * We have multiple reports of hangs with this chipset that went away with | |
236561e5 | 577 | * noapic specified. For the moment we assume it's the erratum. We may be wrong |
1da177e4 LT |
578 | * of course. However the advice is demonstrably good even if so.. |
579 | */ | |
580 | static void __devinit quirk_amd_ioapic(struct pci_dev *dev) | |
581 | { | |
582 | u8 rev; | |
583 | ||
584 | pci_read_config_byte(dev, PCI_REVISION_ID, &rev); | |
585 | if (rev >= 0x02) { | |
236561e5 | 586 | printk(KERN_WARNING "I/O APIC: AMD Erratum #22 may be present. In the event of instability try\n"); |
1da177e4 LT |
587 | printk(KERN_WARNING " : booting with the \"noapic\" option.\n"); |
588 | } | |
589 | } | |
590 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_VIPER_7410, quirk_amd_ioapic ); | |
591 | ||
592 | static void __init quirk_ioapic_rmw(struct pci_dev *dev) | |
593 | { | |
594 | if (dev->devfn == 0 && dev->bus->number == 0) | |
595 | sis_apic_bug = 1; | |
596 | } | |
597 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SI, PCI_ANY_ID, quirk_ioapic_rmw ); | |
598 | ||
1da177e4 LT |
599 | #define AMD8131_revA0 0x01 |
600 | #define AMD8131_revB0 0x11 | |
601 | #define AMD8131_MISC 0x40 | |
602 | #define AMD8131_NIOAMODE_BIT 0 | |
603 | static void __init quirk_amd_8131_ioapic(struct pci_dev *dev) | |
604 | { | |
605 | unsigned char revid, tmp; | |
606 | ||
1da177e4 LT |
607 | if (nr_ioapics == 0) |
608 | return; | |
609 | ||
610 | pci_read_config_byte(dev, PCI_REVISION_ID, &revid); | |
611 | if (revid == AMD8131_revA0 || revid == AMD8131_revB0) { | |
612 | printk(KERN_INFO "Fixing up AMD8131 IOAPIC mode\n"); | |
613 | pci_read_config_byte( dev, AMD8131_MISC, &tmp); | |
614 | tmp &= ~(1 << AMD8131_NIOAMODE_BIT); | |
615 | pci_write_config_byte( dev, AMD8131_MISC, tmp); | |
616 | } | |
617 | } | |
5da594b1 | 618 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8131_BRIDGE, quirk_amd_8131_ioapic); |
1da177e4 LT |
619 | #endif /* CONFIG_X86_IO_APIC */ |
620 | ||
621 | ||
1da177e4 LT |
622 | /* |
623 | * FIXME: it is questionable that quirk_via_acpi | |
624 | * is needed. It shows up as an ISA bridge, and does not | |
625 | * support the PCI_INTERRUPT_LINE register at all. Therefore | |
626 | * it seems like setting the pci_dev's 'irq' to the | |
627 | * value of the ACPI SCI interrupt is only done for convenience. | |
628 | * -jgarzik | |
629 | */ | |
630 | static void __devinit quirk_via_acpi(struct pci_dev *d) | |
631 | { | |
632 | /* | |
633 | * VIA ACPI device: SCI IRQ line in PCI config byte 0x42 | |
634 | */ | |
635 | u8 irq; | |
636 | pci_read_config_byte(d, 0x42, &irq); | |
637 | irq &= 0xf; | |
638 | if (irq && (irq != 2)) | |
639 | d->irq = irq; | |
640 | } | |
641 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C586_3, quirk_via_acpi ); | |
642 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686_4, quirk_via_acpi ); | |
643 | ||
93cffffa BH |
644 | /* |
645 | * Via 686A/B: The PCI_INTERRUPT_LINE register for the on-chip | |
646 | * devices, USB0/1, AC97, MC97, and ACPI, has an unusual feature: | |
647 | * when written, it makes an internal connection to the PIC. | |
648 | * For these devices, this register is defined to be 4 bits wide. | |
649 | * Normally this is fine. However for IO-APIC motherboards, or | |
650 | * non-x86 architectures (yes Via exists on PPC among other places), | |
651 | * we must mask the PCI_INTERRUPT_LINE value versus 0xf to get | |
652 | * interrupts delivered properly. | |
a7b862f6 CW |
653 | * |
654 | * Some of the on-chip devices are actually '586 devices' so they are | |
655 | * listed here. | |
93cffffa | 656 | */ |
09d6029f DD |
657 | |
658 | static int via_irq_fixup_needed = -1; | |
659 | ||
660 | /* | |
661 | * As some VIA hardware is available in PCI-card form, we need to restrict | |
662 | * this quirk to VIA PCI hardware built onto VIA-based motherboards only. | |
663 | * We try to locate a VIA southbridge before deciding whether the quirk | |
664 | * should be applied. | |
665 | */ | |
666 | static const struct pci_device_id via_irq_fixup_tbl[] = { | |
667 | { | |
668 | .vendor = PCI_VENDOR_ID_VIA, | |
669 | .device = PCI_ANY_ID, | |
670 | .subvendor = PCI_ANY_ID, | |
671 | .subdevice = PCI_ANY_ID, | |
672 | .class = PCI_CLASS_BRIDGE_ISA << 8, | |
673 | .class_mask = 0xffff00, | |
674 | }, | |
675 | { 0, }, | |
676 | }; | |
677 | ||
93cffffa | 678 | static void quirk_via_irq(struct pci_dev *dev) |
25be5e6c LB |
679 | { |
680 | u8 irq, new_irq; | |
681 | ||
09d6029f DD |
682 | if (via_irq_fixup_needed == -1) |
683 | via_irq_fixup_needed = pci_dev_present(via_irq_fixup_tbl); | |
684 | ||
685 | if (!via_irq_fixup_needed) | |
686 | return; | |
687 | ||
688 | new_irq = dev->irq; | |
689 | ||
690 | /* Don't quirk interrupts outside the legacy IRQ range */ | |
691 | if (!new_irq || new_irq > 15) | |
692 | return; | |
693 | ||
25be5e6c LB |
694 | pci_read_config_byte(dev, PCI_INTERRUPT_LINE, &irq); |
695 | if (new_irq != irq) { | |
75cf7456 | 696 | printk(KERN_INFO "PCI: VIA IRQ fixup for %s, from %d to %d\n", |
25be5e6c LB |
697 | pci_name(dev), irq, new_irq); |
698 | udelay(15); /* unknown if delay really needed */ | |
699 | pci_write_config_byte(dev, PCI_INTERRUPT_LINE, new_irq); | |
700 | } | |
701 | } | |
09d6029f | 702 | DECLARE_PCI_FIXUP_ENABLE(PCI_VENDOR_ID_VIA, PCI_ANY_ID, quirk_via_irq); |
25be5e6c | 703 | |
1da177e4 LT |
704 | /* |
705 | * VIA VT82C598 has its device ID settable and many BIOSes | |
706 | * set it to the ID of VT82C597 for backward compatibility. | |
707 | * We need to switch it off to be able to recognize the real | |
708 | * type of the chip. | |
709 | */ | |
710 | static void __devinit quirk_vt82c598_id(struct pci_dev *dev) | |
711 | { | |
712 | pci_write_config_byte(dev, 0xfc, 0); | |
713 | pci_read_config_word(dev, PCI_DEVICE_ID, &dev->device); | |
714 | } | |
715 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C597_0, quirk_vt82c598_id ); | |
716 | ||
717 | /* | |
718 | * CardBus controllers have a legacy base address that enables them | |
719 | * to respond as i82365 pcmcia controllers. We don't want them to | |
720 | * do this even if the Linux CardBus driver is not loaded, because | |
721 | * the Linux i82365 driver does not (and should not) handle CardBus. | |
722 | */ | |
723 | static void __devinit quirk_cardbus_legacy(struct pci_dev *dev) | |
724 | { | |
725 | if ((PCI_CLASS_BRIDGE_CARDBUS << 8) ^ dev->class) | |
726 | return; | |
727 | pci_write_config_dword(dev, PCI_CB_LEGACY_MODE_BASE, 0); | |
728 | } | |
729 | DECLARE_PCI_FIXUP_FINAL(PCI_ANY_ID, PCI_ANY_ID, quirk_cardbus_legacy); | |
730 | ||
731 | /* | |
732 | * Following the PCI ordering rules is optional on the AMD762. I'm not | |
733 | * sure what the designers were smoking but let's not inhale... | |
734 | * | |
735 | * To be fair to AMD, it follows the spec by default, its BIOS people | |
736 | * who turn it off! | |
737 | */ | |
738 | static void __devinit quirk_amd_ordering(struct pci_dev *dev) | |
739 | { | |
740 | u32 pcic; | |
741 | pci_read_config_dword(dev, 0x4C, &pcic); | |
742 | if ((pcic&6)!=6) { | |
743 | pcic |= 6; | |
744 | printk(KERN_WARNING "BIOS failed to enable PCI standards compliance, fixing this error.\n"); | |
745 | pci_write_config_dword(dev, 0x4C, pcic); | |
746 | pci_read_config_dword(dev, 0x84, &pcic); | |
747 | pcic |= (1<<23); /* Required in this mode */ | |
748 | pci_write_config_dword(dev, 0x84, pcic); | |
749 | } | |
750 | } | |
751 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_FE_GATE_700C, quirk_amd_ordering ); | |
752 | ||
753 | /* | |
754 | * DreamWorks provided workaround for Dunord I-3000 problem | |
755 | * | |
756 | * This card decodes and responds to addresses not apparently | |
757 | * assigned to it. We force a larger allocation to ensure that | |
758 | * nothing gets put too close to it. | |
759 | */ | |
760 | static void __devinit quirk_dunord ( struct pci_dev * dev ) | |
761 | { | |
762 | struct resource *r = &dev->resource [1]; | |
763 | r->start = 0; | |
764 | r->end = 0xffffff; | |
765 | } | |
766 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_DUNORD, PCI_DEVICE_ID_DUNORD_I3000, quirk_dunord ); | |
767 | ||
768 | /* | |
769 | * i82380FB mobile docking controller: its PCI-to-PCI bridge | |
770 | * is subtractive decoding (transparent), and does indicate this | |
771 | * in the ProgIf. Unfortunately, the ProgIf value is wrong - 0x80 | |
772 | * instead of 0x01. | |
773 | */ | |
774 | static void __devinit quirk_transparent_bridge(struct pci_dev *dev) | |
775 | { | |
776 | dev->transparent = 1; | |
777 | } | |
778 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82380FB, quirk_transparent_bridge ); | |
779 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_TOSHIBA, 0x605, quirk_transparent_bridge ); | |
780 | ||
781 | /* | |
782 | * Common misconfiguration of the MediaGX/Geode PCI master that will | |
783 | * reduce PCI bandwidth from 70MB/s to 25MB/s. See the GXM/GXLV/GX1 | |
784 | * datasheets found at http://www.national.com/ds/GX for info on what | |
785 | * these bits do. <christer@weinigel.se> | |
786 | */ | |
787 | static void __init quirk_mediagx_master(struct pci_dev *dev) | |
788 | { | |
789 | u8 reg; | |
790 | pci_read_config_byte(dev, 0x41, ®); | |
791 | if (reg & 2) { | |
792 | reg &= ~2; | |
793 | printk(KERN_INFO "PCI: Fixup for MediaGX/Geode Slave Disconnect Boundary (0x41=0x%02x)\n", reg); | |
794 | pci_write_config_byte(dev, 0x41, reg); | |
795 | } | |
796 | } | |
797 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CYRIX, PCI_DEVICE_ID_CYRIX_PCI_MASTER, quirk_mediagx_master ); | |
798 | ||
1da177e4 LT |
799 | /* |
800 | * Ensure C0 rev restreaming is off. This is normally done by | |
801 | * the BIOS but in the odd case it is not the results are corruption | |
802 | * hence the presence of a Linux check | |
803 | */ | |
804 | static void __init quirk_disable_pxb(struct pci_dev *pdev) | |
805 | { | |
806 | u16 config; | |
807 | u8 rev; | |
808 | ||
809 | pci_read_config_byte(pdev, PCI_REVISION_ID, &rev); | |
810 | if (rev != 0x04) /* Only C0 requires this */ | |
811 | return; | |
812 | pci_read_config_word(pdev, 0x40, &config); | |
813 | if (config & (1<<6)) { | |
814 | config &= ~(1<<6); | |
815 | pci_write_config_word(pdev, 0x40, config); | |
816 | printk(KERN_INFO "PCI: C0 revision 450NX. Disabling PCI restreaming.\n"); | |
817 | } | |
818 | } | |
819 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82454NX, quirk_disable_pxb ); | |
820 | ||
1da177e4 LT |
821 | |
822 | /* | |
823 | * Serverworks CSB5 IDE does not fully support native mode | |
824 | */ | |
825 | static void __devinit quirk_svwks_csb5ide(struct pci_dev *pdev) | |
826 | { | |
827 | u8 prog; | |
828 | pci_read_config_byte(pdev, PCI_CLASS_PROG, &prog); | |
829 | if (prog & 5) { | |
830 | prog &= ~5; | |
831 | pdev->class &= ~5; | |
832 | pci_write_config_byte(pdev, PCI_CLASS_PROG, prog); | |
368c73d4 | 833 | /* PCI layer will sort out resources */ |
1da177e4 LT |
834 | } |
835 | } | |
368c73d4 | 836 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_CSB5IDE, quirk_svwks_csb5ide ); |
1da177e4 LT |
837 | |
838 | /* | |
839 | * Intel 82801CAM ICH3-M datasheet says IDE modes must be the same | |
840 | */ | |
841 | static void __init quirk_ide_samemode(struct pci_dev *pdev) | |
842 | { | |
843 | u8 prog; | |
844 | ||
845 | pci_read_config_byte(pdev, PCI_CLASS_PROG, &prog); | |
846 | ||
847 | if (((prog & 1) && !(prog & 4)) || ((prog & 4) && !(prog & 1))) { | |
848 | printk(KERN_INFO "PCI: IDE mode mismatch; forcing legacy mode\n"); | |
849 | prog &= ~5; | |
850 | pdev->class &= ~5; | |
851 | pci_write_config_byte(pdev, PCI_CLASS_PROG, prog); | |
1da177e4 LT |
852 | } |
853 | } | |
368c73d4 | 854 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_10, quirk_ide_samemode); |
1da177e4 LT |
855 | |
856 | /* This was originally an Alpha specific thing, but it really fits here. | |
857 | * The i82375 PCI/EISA bridge appears as non-classified. Fix that. | |
858 | */ | |
859 | static void __init quirk_eisa_bridge(struct pci_dev *dev) | |
860 | { | |
861 | dev->class = PCI_CLASS_BRIDGE_EISA << 8; | |
862 | } | |
863 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82375, quirk_eisa_bridge ); | |
864 | ||
7daa0c4f JG |
865 | /* |
866 | * On the MSI-K8T-Neo2Fir Board, the internal Soundcard is disabled | |
867 | * when a PCI-Soundcard is added. The BIOS only gives Options | |
868 | * "Disabled" and "AUTO". This Quirk Sets the corresponding | |
869 | * Register-Value to enable the Soundcard. | |
bd91fde9 CW |
870 | * |
871 | * FIXME: Presently this quirk will run on anything that has an 8237 | |
872 | * which isn't correct, we need to check DMI tables or something in | |
873 | * order to make sure it only runs on the MSI-K8T-Neo2Fir. Because it | |
874 | * runs everywhere at present we suppress the printk output in most | |
875 | * irrelevant cases. | |
7daa0c4f JG |
876 | */ |
877 | static void __init k8t_sound_hostbridge(struct pci_dev *dev) | |
878 | { | |
879 | unsigned char val; | |
880 | ||
7daa0c4f JG |
881 | pci_read_config_byte(dev, 0x50, &val); |
882 | if (val == 0x88 || val == 0xc8) { | |
bd91fde9 CW |
883 | /* Assume it's probably a MSI-K8T-Neo2Fir */ |
884 | printk(KERN_INFO "PCI: MSI-K8T-Neo2Fir, attempting to turn soundcard ON\n"); | |
7daa0c4f JG |
885 | pci_write_config_byte(dev, 0x50, val & (~0x40)); |
886 | ||
887 | /* Verify the Change for Status output */ | |
888 | pci_read_config_byte(dev, 0x50, &val); | |
889 | if (val & 0x40) | |
bd91fde9 | 890 | printk(KERN_INFO "PCI: MSI-K8T-Neo2Fir, soundcard still off\n"); |
7daa0c4f | 891 | else |
bd91fde9 | 892 | printk(KERN_INFO "PCI: MSI-K8T-Neo2Fir, soundcard on\n"); |
7daa0c4f | 893 | } |
7daa0c4f JG |
894 | } |
895 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, k8t_sound_hostbridge); | |
896 | ||
ce007ea5 | 897 | #ifndef CONFIG_ACPI_SLEEP |
1da177e4 LT |
898 | /* |
899 | * On ASUS P4B boards, the SMBus PCI Device within the ICH2/4 southbridge | |
900 | * is not activated. The myth is that Asus said that they do not want the | |
901 | * users to be irritated by just another PCI Device in the Win98 device | |
902 | * manager. (see the file prog/hotplug/README.p4b in the lm_sensors | |
903 | * package 2.7.0 for details) | |
904 | * | |
905 | * The SMBus PCI Device can be activated by setting a bit in the ICH LPC | |
906 | * bridge. Unfortunately, this device has no subvendor/subdevice ID. So it | |
907 | * becomes necessary to do this tweak in two steps -- I've chosen the Host | |
908 | * bridge as trigger. | |
ce007ea5 CDH |
909 | * |
910 | * Actually, leaving it unhidden and not redoing the quirk over suspend2ram | |
911 | * will cause thermal management to break down, and causing machine to | |
912 | * overheat. | |
1da177e4 | 913 | */ |
ce007ea5 | 914 | static int __initdata asus_hides_smbus; |
1da177e4 LT |
915 | |
916 | static void __init asus_hides_smbus_hostbridge(struct pci_dev *dev) | |
917 | { | |
918 | if (unlikely(dev->subsystem_vendor == PCI_VENDOR_ID_ASUSTEK)) { | |
919 | if (dev->device == PCI_DEVICE_ID_INTEL_82845_HB) | |
920 | switch(dev->subsystem_device) { | |
a00db371 | 921 | case 0x8025: /* P4B-LX */ |
1da177e4 LT |
922 | case 0x8070: /* P4B */ |
923 | case 0x8088: /* P4B533 */ | |
924 | case 0x1626: /* L3C notebook */ | |
925 | asus_hides_smbus = 1; | |
926 | } | |
927 | if (dev->device == PCI_DEVICE_ID_INTEL_82845G_HB) | |
928 | switch(dev->subsystem_device) { | |
929 | case 0x80b1: /* P4GE-V */ | |
930 | case 0x80b2: /* P4PE */ | |
931 | case 0x8093: /* P4B533-V */ | |
932 | asus_hides_smbus = 1; | |
933 | } | |
934 | if (dev->device == PCI_DEVICE_ID_INTEL_82850_HB) | |
935 | switch(dev->subsystem_device) { | |
936 | case 0x8030: /* P4T533 */ | |
937 | asus_hides_smbus = 1; | |
938 | } | |
939 | if (dev->device == PCI_DEVICE_ID_INTEL_7205_0) | |
940 | switch (dev->subsystem_device) { | |
941 | case 0x8070: /* P4G8X Deluxe */ | |
942 | asus_hides_smbus = 1; | |
943 | } | |
321311af JD |
944 | if (dev->device == PCI_DEVICE_ID_INTEL_E7501_MCH) |
945 | switch (dev->subsystem_device) { | |
946 | case 0x80c9: /* PU-DLS */ | |
947 | asus_hides_smbus = 1; | |
948 | } | |
1da177e4 LT |
949 | if (dev->device == PCI_DEVICE_ID_INTEL_82855GM_HB) |
950 | switch (dev->subsystem_device) { | |
951 | case 0x1751: /* M2N notebook */ | |
952 | case 0x1821: /* M5N notebook */ | |
953 | asus_hides_smbus = 1; | |
954 | } | |
955 | if (dev->device == PCI_DEVICE_ID_INTEL_82855PM_HB) | |
956 | switch (dev->subsystem_device) { | |
957 | case 0x184b: /* W1N notebook */ | |
958 | case 0x186a: /* M6Ne notebook */ | |
959 | asus_hides_smbus = 1; | |
960 | } | |
acc06632 M |
961 | if (dev->device == PCI_DEVICE_ID_INTEL_82915GM_HB) { |
962 | switch (dev->subsystem_device) { | |
963 | case 0x1882: /* M6V notebook */ | |
2d1e1c75 | 964 | case 0x1977: /* A6VA notebook */ |
acc06632 M |
965 | asus_hides_smbus = 1; |
966 | } | |
967 | } | |
1da177e4 LT |
968 | } else if (unlikely(dev->subsystem_vendor == PCI_VENDOR_ID_HP)) { |
969 | if (dev->device == PCI_DEVICE_ID_INTEL_82855PM_HB) | |
970 | switch(dev->subsystem_device) { | |
971 | case 0x088C: /* HP Compaq nc8000 */ | |
972 | case 0x0890: /* HP Compaq nc6000 */ | |
973 | asus_hides_smbus = 1; | |
974 | } | |
975 | if (dev->device == PCI_DEVICE_ID_INTEL_82865_HB) | |
976 | switch (dev->subsystem_device) { | |
977 | case 0x12bc: /* HP D330L */ | |
e3b1bd57 | 978 | case 0x12bd: /* HP D530 */ |
1da177e4 LT |
979 | asus_hides_smbus = 1; |
980 | } | |
3c0a654e | 981 | if (dev->device == PCI_DEVICE_ID_INTEL_82915GM_HB) { |
982 | switch (dev->subsystem_device) { | |
983 | case 0x099c: /* HP Compaq nx6110 */ | |
984 | asus_hides_smbus = 1; | |
985 | } | |
986 | } | |
1da177e4 LT |
987 | } else if (unlikely(dev->subsystem_vendor == PCI_VENDOR_ID_TOSHIBA)) { |
988 | if (dev->device == PCI_DEVICE_ID_INTEL_82855GM_HB) | |
989 | switch(dev->subsystem_device) { | |
990 | case 0x0001: /* Toshiba Satellite A40 */ | |
991 | asus_hides_smbus = 1; | |
992 | } | |
e96e2f14 DG |
993 | if (dev->device == PCI_DEVICE_ID_INTEL_82855PM_HB) |
994 | switch(dev->subsystem_device) { | |
995 | case 0x0001: /* Toshiba Tecra M2 */ | |
996 | asus_hides_smbus = 1; | |
997 | } | |
1da177e4 LT |
998 | } else if (unlikely(dev->subsystem_vendor == PCI_VENDOR_ID_SAMSUNG)) { |
999 | if (dev->device == PCI_DEVICE_ID_INTEL_82855PM_HB) | |
1000 | switch(dev->subsystem_device) { | |
1001 | case 0xC00C: /* Samsung P35 notebook */ | |
1002 | asus_hides_smbus = 1; | |
1003 | } | |
c87f883e RIZ |
1004 | } else if (unlikely(dev->subsystem_vendor == PCI_VENDOR_ID_COMPAQ)) { |
1005 | if (dev->device == PCI_DEVICE_ID_INTEL_82855PM_HB) | |
1006 | switch(dev->subsystem_device) { | |
1007 | case 0x0058: /* Compaq Evo N620c */ | |
1008 | asus_hides_smbus = 1; | |
1009 | } | |
1da177e4 LT |
1010 | } |
1011 | } | |
1012 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82845_HB, asus_hides_smbus_hostbridge ); | |
1013 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82845G_HB, asus_hides_smbus_hostbridge ); | |
1014 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82850_HB, asus_hides_smbus_hostbridge ); | |
1015 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82865_HB, asus_hides_smbus_hostbridge ); | |
1016 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_7205_0, asus_hides_smbus_hostbridge ); | |
321311af | 1017 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7501_MCH, asus_hides_smbus_hostbridge ); |
1da177e4 LT |
1018 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82855PM_HB, asus_hides_smbus_hostbridge ); |
1019 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82855GM_HB, asus_hides_smbus_hostbridge ); | |
acc06632 | 1020 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82915GM_HB, asus_hides_smbus_hostbridge ); |
1da177e4 LT |
1021 | |
1022 | static void __init asus_hides_smbus_lpc(struct pci_dev *dev) | |
1023 | { | |
1024 | u16 val; | |
1025 | ||
1026 | if (likely(!asus_hides_smbus)) | |
1027 | return; | |
1028 | ||
1029 | pci_read_config_word(dev, 0xF2, &val); | |
1030 | if (val & 0x8) { | |
1031 | pci_write_config_word(dev, 0xF2, val & (~0x8)); | |
1032 | pci_read_config_word(dev, 0xF2, &val); | |
1033 | if (val & 0x8) | |
1034 | printk(KERN_INFO "PCI: i801 SMBus device continues to play 'hide and seek'! 0x%x\n", val); | |
1035 | else | |
1036 | printk(KERN_INFO "PCI: Enabled i801 SMBus device\n"); | |
1037 | } | |
1038 | } | |
1039 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_0, asus_hides_smbus_lpc ); | |
1040 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_0, asus_hides_smbus_lpc ); | |
321311af | 1041 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_0, asus_hides_smbus_lpc ); |
1da177e4 LT |
1042 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_12, asus_hides_smbus_lpc ); |
1043 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_12, asus_hides_smbus_lpc ); | |
1044 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801EB_0, asus_hides_smbus_lpc ); | |
1045 | ||
acc06632 M |
1046 | static void __init asus_hides_smbus_lpc_ich6(struct pci_dev *dev) |
1047 | { | |
1048 | u32 val, rcba; | |
1049 | void __iomem *base; | |
1050 | ||
1051 | if (likely(!asus_hides_smbus)) | |
1052 | return; | |
1053 | pci_read_config_dword(dev, 0xF0, &rcba); | |
1054 | base = ioremap_nocache(rcba & 0xFFFFC000, 0x4000); /* use bits 31:14, 16 kB aligned */ | |
1055 | if (base == NULL) return; | |
1056 | val=readl(base + 0x3418); /* read the Function Disable register, dword mode only */ | |
1057 | writel(val & 0xFFFFFFF7, base + 0x3418); /* enable the SMBus device */ | |
1058 | iounmap(base); | |
1059 | printk(KERN_INFO "PCI: Enabled ICH6/i801 SMBus device\n"); | |
1060 | } | |
1061 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1, asus_hides_smbus_lpc_ich6 ); | |
1062 | ||
ce007ea5 CDH |
1063 | #endif |
1064 | ||
1da177e4 LT |
1065 | /* |
1066 | * SiS 96x south bridge: BIOS typically hides SMBus device... | |
1067 | */ | |
1068 | static void __init quirk_sis_96x_smbus(struct pci_dev *dev) | |
1069 | { | |
1070 | u8 val = 0; | |
1071 | printk(KERN_INFO "Enabling SiS 96x SMBus.\n"); | |
1072 | pci_read_config_byte(dev, 0x77, &val); | |
1073 | pci_write_config_byte(dev, 0x77, val & ~0x10); | |
1074 | pci_read_config_byte(dev, 0x77, &val); | |
1075 | } | |
1076 | ||
1da177e4 LT |
1077 | /* |
1078 | * ... This is further complicated by the fact that some SiS96x south | |
1079 | * bridges pretend to be 85C503/5513 instead. In that case see if we | |
1080 | * spotted a compatible north bridge to make sure. | |
1081 | * (pci_find_device doesn't work yet) | |
1082 | * | |
1083 | * We can also enable the sis96x bit in the discovery register.. | |
1084 | */ | |
1085 | static int __devinitdata sis_96x_compatible = 0; | |
1086 | ||
1087 | #define SIS_DETECT_REGISTER 0x40 | |
1088 | ||
1089 | static void __init quirk_sis_503(struct pci_dev *dev) | |
1090 | { | |
1091 | u8 reg; | |
1092 | u16 devid; | |
1093 | ||
1094 | pci_read_config_byte(dev, SIS_DETECT_REGISTER, ®); | |
1095 | pci_write_config_byte(dev, SIS_DETECT_REGISTER, reg | (1 << 6)); | |
1096 | pci_read_config_word(dev, PCI_DEVICE_ID, &devid); | |
1097 | if (((devid & 0xfff0) != 0x0960) && (devid != 0x0018)) { | |
1098 | pci_write_config_byte(dev, SIS_DETECT_REGISTER, reg); | |
1099 | return; | |
1100 | } | |
1101 | ||
1102 | /* Make people aware that we changed the config.. */ | |
1103 | printk(KERN_WARNING "Uncovering SIS%x that hid as a SIS503 (compatible=%d)\n", devid, sis_96x_compatible); | |
1104 | ||
1105 | /* | |
1106 | * Ok, it now shows up as a 96x.. The 96x quirks are after | |
1107 | * the 503 quirk in the quirk table, so they'll automatically | |
1108 | * run and enable things like the SMBus device | |
1109 | */ | |
1110 | dev->device = devid; | |
1111 | } | |
1112 | ||
1113 | static void __init quirk_sis_96x_compatible(struct pci_dev *dev) | |
1114 | { | |
1115 | sis_96x_compatible = 1; | |
1116 | } | |
1117 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_645, quirk_sis_96x_compatible ); | |
1118 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_646, quirk_sis_96x_compatible ); | |
1119 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_648, quirk_sis_96x_compatible ); | |
1120 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_650, quirk_sis_96x_compatible ); | |
1121 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_651, quirk_sis_96x_compatible ); | |
1122 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_735, quirk_sis_96x_compatible ); | |
1123 | ||
1124 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_503, quirk_sis_503 ); | |
e5548e96 BJD |
1125 | /* |
1126 | * On ASUS A8V and A8V Deluxe boards, the onboard AC97 audio controller | |
1127 | * and MC97 modem controller are disabled when a second PCI soundcard is | |
1128 | * present. This patch, tweaking the VT8237 ISA bridge, enables them. | |
1129 | * -- bjd | |
1130 | */ | |
1131 | static void __init asus_hides_ac97_lpc(struct pci_dev *dev) | |
1132 | { | |
1133 | u8 val; | |
1134 | int asus_hides_ac97 = 0; | |
1135 | ||
1136 | if (likely(dev->subsystem_vendor == PCI_VENDOR_ID_ASUSTEK)) { | |
1137 | if (dev->device == PCI_DEVICE_ID_VIA_8237) | |
1138 | asus_hides_ac97 = 1; | |
1139 | } | |
1140 | ||
1141 | if (!asus_hides_ac97) | |
1142 | return; | |
1143 | ||
1144 | pci_read_config_byte(dev, 0x50, &val); | |
1145 | if (val & 0xc0) { | |
1146 | pci_write_config_byte(dev, 0x50, val & (~0xc0)); | |
1147 | pci_read_config_byte(dev, 0x50, &val); | |
1148 | if (val & 0xc0) | |
1149 | printk(KERN_INFO "PCI: onboard AC97/MC97 devices continue to play 'hide and seek'! 0x%x\n", val); | |
1150 | else | |
1151 | printk(KERN_INFO "PCI: enabled onboard AC97/MC97 devices\n"); | |
1152 | } | |
1153 | } | |
1154 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, asus_hides_ac97_lpc ); | |
1155 | ||
1da177e4 LT |
1156 | |
1157 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_961, quirk_sis_96x_smbus ); | |
1158 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_962, quirk_sis_96x_smbus ); | |
1159 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_963, quirk_sis_96x_smbus ); | |
1160 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_LPC, quirk_sis_96x_smbus ); | |
1161 | ||
77967052 | 1162 | #if defined(CONFIG_ATA) || defined(CONFIG_ATA_MODULE) |
15e0c694 AC |
1163 | |
1164 | /* | |
1165 | * If we are using libata we can drive this chip properly but must | |
1166 | * do this early on to make the additional device appear during | |
1167 | * the PCI scanning. | |
1168 | */ | |
1169 | ||
1170 | static void __devinit quirk_jmicron_dualfn(struct pci_dev *pdev) | |
1171 | { | |
1172 | u32 conf; | |
1173 | u8 hdr; | |
1174 | ||
1175 | /* Only poke fn 0 */ | |
1176 | if (PCI_FUNC(pdev->devfn)) | |
1177 | return; | |
1178 | ||
1179 | switch(pdev->device) { | |
1180 | case PCI_DEVICE_ID_JMICRON_JMB365: | |
1181 | case PCI_DEVICE_ID_JMICRON_JMB366: | |
1182 | /* Redirect IDE second PATA port to the right spot */ | |
1183 | pci_read_config_dword(pdev, 0x80, &conf); | |
1184 | conf |= (1 << 24); | |
1185 | /* Fall through */ | |
1186 | pci_write_config_dword(pdev, 0x80, conf); | |
1187 | case PCI_DEVICE_ID_JMICRON_JMB361: | |
1188 | case PCI_DEVICE_ID_JMICRON_JMB363: | |
1189 | pci_read_config_dword(pdev, 0x40, &conf); | |
1190 | /* Enable dual function mode, AHCI on fn 0, IDE fn1 */ | |
1191 | /* Set the class codes correctly and then direct IDE 0 */ | |
1192 | conf &= ~0x000F0200; /* Clear bit 9 and 16-19 */ | |
1193 | conf |= 0x00C20002; /* Set bit 1, 17, 22, 23 */ | |
1194 | pci_write_config_dword(pdev, 0x40, conf); | |
1195 | ||
1196 | /* Reconfigure so that the PCI scanner discovers the | |
1197 | device is now multifunction */ | |
1198 | ||
1199 | pci_read_config_byte(pdev, PCI_HEADER_TYPE, &hdr); | |
1200 | pdev->hdr_type = hdr & 0x7f; | |
1201 | pdev->multifunction = !!(hdr & 0x80); | |
1202 | ||
1203 | break; | |
1204 | } | |
1205 | } | |
1206 | ||
1207 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_ANY_ID, quirk_jmicron_dualfn); | |
1208 | ||
1209 | #endif | |
1210 | ||
1da177e4 LT |
1211 | #ifdef CONFIG_X86_IO_APIC |
1212 | static void __init quirk_alder_ioapic(struct pci_dev *pdev) | |
1213 | { | |
1214 | int i; | |
1215 | ||
1216 | if ((pdev->class >> 8) != 0xff00) | |
1217 | return; | |
1218 | ||
1219 | /* the first BAR is the location of the IO APIC...we must | |
1220 | * not touch this (and it's already covered by the fixmap), so | |
1221 | * forcibly insert it into the resource tree */ | |
1222 | if (pci_resource_start(pdev, 0) && pci_resource_len(pdev, 0)) | |
1223 | insert_resource(&iomem_resource, &pdev->resource[0]); | |
1224 | ||
1225 | /* The next five BARs all seem to be rubbish, so just clean | |
1226 | * them out */ | |
1227 | for (i=1; i < 6; i++) { | |
1228 | memset(&pdev->resource[i], 0, sizeof(pdev->resource[i])); | |
1229 | } | |
1230 | ||
1231 | } | |
1232 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_EESSC, quirk_alder_ioapic ); | |
1233 | #endif | |
1234 | ||
2bd0fa3b JB |
1235 | enum ide_combined_type { COMBINED = 0, IDE = 1, LIBATA = 2 }; |
1236 | /* Defaults to combined */ | |
1237 | static enum ide_combined_type combined_mode; | |
1238 | ||
1239 | static int __init combined_setup(char *str) | |
1240 | { | |
1241 | if (!strncmp(str, "ide", 3)) | |
1242 | combined_mode = IDE; | |
1243 | else if (!strncmp(str, "libata", 6)) | |
1244 | combined_mode = LIBATA; | |
1245 | else /* "combined" or anything else defaults to old behavior */ | |
1246 | combined_mode = COMBINED; | |
1247 | ||
1248 | return 1; | |
1249 | } | |
1250 | __setup("combined_mode=", combined_setup); | |
1251 | ||
77967052 | 1252 | #ifdef CONFIG_SATA_INTEL_COMBINED |
1da177e4 LT |
1253 | static void __devinit quirk_intel_ide_combined(struct pci_dev *pdev) |
1254 | { | |
1255 | u8 prog, comb, tmp; | |
1256 | int ich = 0; | |
1257 | ||
1258 | /* | |
1259 | * Narrow down to Intel SATA PCI devices. | |
1260 | */ | |
1261 | switch (pdev->device) { | |
1262 | /* PCI ids taken from drivers/scsi/ata_piix.c */ | |
1263 | case 0x24d1: | |
1264 | case 0x24df: | |
1265 | case 0x25a3: | |
1266 | case 0x25b0: | |
1267 | ich = 5; | |
1268 | break; | |
1269 | case 0x2651: | |
1270 | case 0x2652: | |
1271 | case 0x2653: | |
c368ca4e | 1272 | case 0x2680: /* ESB2 */ |
1da177e4 LT |
1273 | ich = 6; |
1274 | break; | |
1275 | case 0x27c0: | |
1276 | case 0x27c4: | |
1277 | ich = 7; | |
1278 | break; | |
012b265f JG |
1279 | case 0x2828: /* ICH8M */ |
1280 | ich = 8; | |
1281 | break; | |
1da177e4 LT |
1282 | default: |
1283 | /* we do not handle this PCI device */ | |
1284 | return; | |
1285 | } | |
1286 | ||
1287 | /* | |
1288 | * Read combined mode register. | |
1289 | */ | |
1290 | pci_read_config_byte(pdev, 0x90, &tmp); /* combined mode reg */ | |
1291 | ||
1292 | if (ich == 5) { | |
1293 | tmp &= 0x6; /* interesting bits 2:1, PATA primary/secondary */ | |
1294 | if (tmp == 0x4) /* bits 10x */ | |
1295 | comb = (1 << 0); /* SATA port 0, PATA port 1 */ | |
1296 | else if (tmp == 0x6) /* bits 11x */ | |
1297 | comb = (1 << 2); /* PATA port 0, SATA port 1 */ | |
1298 | else | |
1299 | return; /* not in combined mode */ | |
1300 | } else { | |
012b265f | 1301 | WARN_ON((ich != 6) && (ich != 7) && (ich != 8)); |
1da177e4 LT |
1302 | tmp &= 0x3; /* interesting bits 1:0 */ |
1303 | if (tmp & (1 << 0)) | |
1304 | comb = (1 << 2); /* PATA port 0, SATA port 1 */ | |
1305 | else if (tmp & (1 << 1)) | |
1306 | comb = (1 << 0); /* SATA port 0, PATA port 1 */ | |
1307 | else | |
1308 | return; /* not in combined mode */ | |
1309 | } | |
1310 | ||
1311 | /* | |
1312 | * Read programming interface register. | |
1313 | * (Tells us if it's legacy or native mode) | |
1314 | */ | |
1315 | pci_read_config_byte(pdev, PCI_CLASS_PROG, &prog); | |
1316 | ||
1317 | /* if SATA port is in native mode, we're ok. */ | |
1318 | if (prog & comb) | |
1319 | return; | |
1320 | ||
2bd0fa3b JB |
1321 | /* Don't reserve any so the IDE driver can get them (but only if |
1322 | * combined_mode=ide). | |
1323 | */ | |
1324 | if (combined_mode == IDE) | |
1325 | return; | |
1326 | ||
1327 | /* Grab them both for libata if combined_mode=libata. */ | |
1328 | if (combined_mode == LIBATA) { | |
1329 | request_region(0x1f0, 8, "libata"); /* port 0 */ | |
1330 | request_region(0x170, 8, "libata"); /* port 1 */ | |
1331 | return; | |
1332 | } | |
1333 | ||
1da177e4 LT |
1334 | /* SATA port is in legacy mode. Reserve port so that |
1335 | * IDE driver does not attempt to use it. If request_region | |
1336 | * fails, it will be obvious at boot time, so we don't bother | |
1337 | * checking return values. | |
1338 | */ | |
1339 | if (comb == (1 << 0)) | |
1340 | request_region(0x1f0, 8, "libata"); /* port 0 */ | |
1341 | else | |
1342 | request_region(0x170, 8, "libata"); /* port 1 */ | |
1343 | } | |
1344 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_ANY_ID, quirk_intel_ide_combined ); | |
77967052 | 1345 | #endif /* CONFIG_SATA_INTEL_COMBINED */ |
1da177e4 LT |
1346 | |
1347 | ||
1348 | int pcie_mch_quirk; | |
1349 | ||
1350 | static void __devinit quirk_pcie_mch(struct pci_dev *pdev) | |
1351 | { | |
1352 | pcie_mch_quirk = 1; | |
1353 | } | |
1354 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7520_MCH, quirk_pcie_mch ); | |
1355 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7320_MCH, quirk_pcie_mch ); | |
1356 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7525_MCH, quirk_pcie_mch ); | |
1357 | ||
4602b88d KA |
1358 | |
1359 | /* | |
1360 | * It's possible for the MSI to get corrupted if shpc and acpi | |
1361 | * are used together on certain PXH-based systems. | |
1362 | */ | |
1363 | static void __devinit quirk_pcie_pxh(struct pci_dev *dev) | |
1364 | { | |
1365 | disable_msi_mode(dev, pci_find_capability(dev, PCI_CAP_ID_MSI), | |
1366 | PCI_CAP_ID_MSI); | |
1367 | dev->no_msi = 1; | |
1368 | ||
1369 | printk(KERN_WARNING "PCI: PXH quirk detected, " | |
1370 | "disabling MSI for SHPC device\n"); | |
1371 | } | |
1372 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXHD_0, quirk_pcie_pxh); | |
1373 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXHD_1, quirk_pcie_pxh); | |
1374 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_0, quirk_pcie_pxh); | |
1375 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_1, quirk_pcie_pxh); | |
1376 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXHV, quirk_pcie_pxh); | |
1377 | ||
ffadcc2f KCA |
1378 | /* |
1379 | * Some Intel PCI Express chipsets have trouble with downstream | |
1380 | * device power management. | |
1381 | */ | |
1382 | static void quirk_intel_pcie_pm(struct pci_dev * dev) | |
1383 | { | |
1384 | pci_pm_d3_delay = 120; | |
1385 | dev->no_d1d2 = 1; | |
1386 | } | |
1387 | ||
1388 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e2, quirk_intel_pcie_pm); | |
1389 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e3, quirk_intel_pcie_pm); | |
1390 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e4, quirk_intel_pcie_pm); | |
1391 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e5, quirk_intel_pcie_pm); | |
1392 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e6, quirk_intel_pcie_pm); | |
1393 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e7, quirk_intel_pcie_pm); | |
1394 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25f7, quirk_intel_pcie_pm); | |
1395 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25f8, quirk_intel_pcie_pm); | |
1396 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25f9, quirk_intel_pcie_pm); | |
1397 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25fa, quirk_intel_pcie_pm); | |
1398 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2601, quirk_intel_pcie_pm); | |
1399 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2602, quirk_intel_pcie_pm); | |
1400 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2603, quirk_intel_pcie_pm); | |
1401 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2604, quirk_intel_pcie_pm); | |
1402 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2605, quirk_intel_pcie_pm); | |
1403 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2606, quirk_intel_pcie_pm); | |
1404 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2607, quirk_intel_pcie_pm); | |
1405 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2608, quirk_intel_pcie_pm); | |
1406 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2609, quirk_intel_pcie_pm); | |
1407 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x260a, quirk_intel_pcie_pm); | |
1408 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x260b, quirk_intel_pcie_pm); | |
4602b88d | 1409 | |
1da177e4 LT |
1410 | static void __devinit quirk_netmos(struct pci_dev *dev) |
1411 | { | |
1412 | unsigned int num_parallel = (dev->subsystem_device & 0xf0) >> 4; | |
1413 | unsigned int num_serial = dev->subsystem_device & 0xf; | |
1414 | ||
1415 | /* | |
1416 | * These Netmos parts are multiport serial devices with optional | |
1417 | * parallel ports. Even when parallel ports are present, they | |
1418 | * are identified as class SERIAL, which means the serial driver | |
1419 | * will claim them. To prevent this, mark them as class OTHER. | |
1420 | * These combo devices should be claimed by parport_serial. | |
1421 | * | |
1422 | * The subdevice ID is of the form 0x00PS, where <P> is the number | |
1423 | * of parallel ports and <S> is the number of serial ports. | |
1424 | */ | |
1425 | switch (dev->device) { | |
1426 | case PCI_DEVICE_ID_NETMOS_9735: | |
1427 | case PCI_DEVICE_ID_NETMOS_9745: | |
1428 | case PCI_DEVICE_ID_NETMOS_9835: | |
1429 | case PCI_DEVICE_ID_NETMOS_9845: | |
1430 | case PCI_DEVICE_ID_NETMOS_9855: | |
1431 | if ((dev->class >> 8) == PCI_CLASS_COMMUNICATION_SERIAL && | |
1432 | num_parallel) { | |
1433 | printk(KERN_INFO "PCI: Netmos %04x (%u parallel, " | |
1434 | "%u serial); changing class SERIAL to OTHER " | |
1435 | "(use parport_serial)\n", | |
1436 | dev->device, num_parallel, num_serial); | |
1437 | dev->class = (PCI_CLASS_COMMUNICATION_OTHER << 8) | | |
1438 | (dev->class & 0xff); | |
1439 | } | |
1440 | } | |
1441 | } | |
1442 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NETMOS, PCI_ANY_ID, quirk_netmos); | |
1443 | ||
16a74744 BH |
1444 | static void __devinit quirk_e100_interrupt(struct pci_dev *dev) |
1445 | { | |
1446 | u16 command; | |
1447 | u32 bar; | |
1448 | u8 __iomem *csr; | |
1449 | u8 cmd_hi; | |
1450 | ||
1451 | switch (dev->device) { | |
1452 | /* PCI IDs taken from drivers/net/e100.c */ | |
1453 | case 0x1029: | |
1454 | case 0x1030 ... 0x1034: | |
1455 | case 0x1038 ... 0x103E: | |
1456 | case 0x1050 ... 0x1057: | |
1457 | case 0x1059: | |
1458 | case 0x1064 ... 0x106B: | |
1459 | case 0x1091 ... 0x1095: | |
1460 | case 0x1209: | |
1461 | case 0x1229: | |
1462 | case 0x2449: | |
1463 | case 0x2459: | |
1464 | case 0x245D: | |
1465 | case 0x27DC: | |
1466 | break; | |
1467 | default: | |
1468 | return; | |
1469 | } | |
1470 | ||
1471 | /* | |
1472 | * Some firmware hands off the e100 with interrupts enabled, | |
1473 | * which can cause a flood of interrupts if packets are | |
1474 | * received before the driver attaches to the device. So | |
1475 | * disable all e100 interrupts here. The driver will | |
1476 | * re-enable them when it's ready. | |
1477 | */ | |
1478 | pci_read_config_word(dev, PCI_COMMAND, &command); | |
1479 | pci_read_config_dword(dev, PCI_BASE_ADDRESS_0, &bar); | |
1480 | ||
1481 | if (!(command & PCI_COMMAND_MEMORY) || !bar) | |
1482 | return; | |
1483 | ||
1484 | csr = ioremap(bar, 8); | |
1485 | if (!csr) { | |
1486 | printk(KERN_WARNING "PCI: Can't map %s e100 registers\n", | |
1487 | pci_name(dev)); | |
1488 | return; | |
1489 | } | |
1490 | ||
1491 | cmd_hi = readb(csr + 3); | |
1492 | if (cmd_hi == 0) { | |
1493 | printk(KERN_WARNING "PCI: Firmware left %s e100 interrupts " | |
1494 | "enabled, disabling\n", pci_name(dev)); | |
1495 | writeb(1, csr + 3); | |
1496 | } | |
1497 | ||
1498 | iounmap(csr); | |
1499 | } | |
1500 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_ANY_ID, quirk_e100_interrupt); | |
a5312e28 IK |
1501 | |
1502 | static void __devinit fixup_rev1_53c810(struct pci_dev* dev) | |
1503 | { | |
1504 | /* rev 1 ncr53c810 chips don't set the class at all which means | |
1505 | * they don't get their resources remapped. Fix that here. | |
1506 | */ | |
1507 | ||
1508 | if (dev->class == PCI_CLASS_NOT_DEFINED) { | |
1509 | printk(KERN_INFO "NCR 53c810 rev 1 detected, setting PCI class.\n"); | |
1510 | dev->class = PCI_CLASS_STORAGE_SCSI; | |
1511 | } | |
1512 | } | |
1513 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NCR, PCI_DEVICE_ID_NCR_53C810, fixup_rev1_53c810); | |
1514 | ||
1da177e4 LT |
1515 | static void pci_do_fixups(struct pci_dev *dev, struct pci_fixup *f, struct pci_fixup *end) |
1516 | { | |
1517 | while (f < end) { | |
1518 | if ((f->vendor == dev->vendor || f->vendor == (u16) PCI_ANY_ID) && | |
1519 | (f->device == dev->device || f->device == (u16) PCI_ANY_ID)) { | |
1520 | pr_debug("PCI: Calling quirk %p for %s\n", f->hook, pci_name(dev)); | |
1521 | f->hook(dev); | |
1522 | } | |
1523 | f++; | |
1524 | } | |
1525 | } | |
1526 | ||
1527 | extern struct pci_fixup __start_pci_fixups_early[]; | |
1528 | extern struct pci_fixup __end_pci_fixups_early[]; | |
1529 | extern struct pci_fixup __start_pci_fixups_header[]; | |
1530 | extern struct pci_fixup __end_pci_fixups_header[]; | |
1531 | extern struct pci_fixup __start_pci_fixups_final[]; | |
1532 | extern struct pci_fixup __end_pci_fixups_final[]; | |
1533 | extern struct pci_fixup __start_pci_fixups_enable[]; | |
1534 | extern struct pci_fixup __end_pci_fixups_enable[]; | |
1535 | ||
1536 | ||
1537 | void pci_fixup_device(enum pci_fixup_pass pass, struct pci_dev *dev) | |
1538 | { | |
1539 | struct pci_fixup *start, *end; | |
1540 | ||
1541 | switch(pass) { | |
1542 | case pci_fixup_early: | |
1543 | start = __start_pci_fixups_early; | |
1544 | end = __end_pci_fixups_early; | |
1545 | break; | |
1546 | ||
1547 | case pci_fixup_header: | |
1548 | start = __start_pci_fixups_header; | |
1549 | end = __end_pci_fixups_header; | |
1550 | break; | |
1551 | ||
1552 | case pci_fixup_final: | |
1553 | start = __start_pci_fixups_final; | |
1554 | end = __end_pci_fixups_final; | |
1555 | break; | |
1556 | ||
1557 | case pci_fixup_enable: | |
1558 | start = __start_pci_fixups_enable; | |
1559 | end = __end_pci_fixups_enable; | |
1560 | break; | |
1561 | ||
1562 | default: | |
1563 | /* stupid compiler warning, you would think with an enum... */ | |
1564 | return; | |
1565 | } | |
1566 | pci_do_fixups(dev, start, end); | |
1567 | } | |
1568 | ||
9d265124 DY |
1569 | /* Enable 1k I/O space granularity on the Intel P64H2 */ |
1570 | static void __devinit quirk_p64h2_1k_io(struct pci_dev *dev) | |
1571 | { | |
1572 | u16 en1k; | |
1573 | u8 io_base_lo, io_limit_lo; | |
1574 | unsigned long base, limit; | |
1575 | struct resource *res = dev->resource + PCI_BRIDGE_RESOURCES; | |
1576 | ||
1577 | pci_read_config_word(dev, 0x40, &en1k); | |
1578 | ||
1579 | if (en1k & 0x200) { | |
1580 | printk(KERN_INFO "PCI: Enable I/O Space to 1 KB Granularity\n"); | |
1581 | ||
1582 | pci_read_config_byte(dev, PCI_IO_BASE, &io_base_lo); | |
1583 | pci_read_config_byte(dev, PCI_IO_LIMIT, &io_limit_lo); | |
1584 | base = (io_base_lo & (PCI_IO_RANGE_MASK | 0x0c)) << 8; | |
1585 | limit = (io_limit_lo & (PCI_IO_RANGE_MASK | 0x0c)) << 8; | |
1586 | ||
1587 | if (base <= limit) { | |
1588 | res->start = base; | |
1589 | res->end = limit + 0x3ff; | |
1590 | } | |
1591 | } | |
1592 | } | |
1593 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x1460, quirk_p64h2_1k_io); | |
1594 | ||
cf34a8e0 BG |
1595 | /* Under some circumstances, AER is not linked with extended capabilities. |
1596 | * Force it to be linked by setting the corresponding control bit in the | |
1597 | * config space. | |
1598 | */ | |
1599 | static void __devinit quirk_nvidia_ck804_pcie_aer_ext_cap(struct pci_dev *dev) | |
1600 | { | |
1601 | uint8_t b; | |
1602 | if (pci_read_config_byte(dev, 0xf41, &b) == 0) { | |
1603 | if (!(b & 0x20)) { | |
1604 | pci_write_config_byte(dev, 0xf41, b | 0x20); | |
1605 | printk(KERN_INFO | |
1606 | "PCI: Linking AER extended capability on %s\n", | |
1607 | pci_name(dev)); | |
1608 | } | |
1609 | } | |
1610 | } | |
1611 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_CK804_PCIE, | |
1612 | quirk_nvidia_ck804_pcie_aer_ext_cap); | |
1613 | ||
3f79e107 BG |
1614 | #ifdef CONFIG_PCI_MSI |
1615 | /* To disable MSI globally */ | |
1616 | int pci_msi_quirk; | |
1617 | ||
1618 | /* The Serverworks PCI-X chipset does not support MSI. We cannot easily rely | |
1619 | * on setting PCI_BUS_FLAGS_NO_MSI in its bus flags because there are actually | |
1620 | * some other busses controlled by the chipset even if Linux is not aware of it. | |
1621 | * Instead of setting the flag on all busses in the machine, simply disable MSI | |
1622 | * globally. | |
1623 | */ | |
1624 | static void __init quirk_svw_msi(struct pci_dev *dev) | |
1625 | { | |
1626 | pci_msi_quirk = 1; | |
1627 | printk(KERN_WARNING "PCI: MSI quirk detected. pci_msi_quirk set.\n"); | |
1628 | } | |
1629 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_GCNB_LE, quirk_svw_msi); | |
1630 | ||
1631 | /* Disable MSI on chipsets that are known to not support it */ | |
1632 | static void __devinit quirk_disable_msi(struct pci_dev *dev) | |
1633 | { | |
1634 | if (dev->subordinate) { | |
1635 | printk(KERN_WARNING "PCI: MSI quirk detected. " | |
1636 | "PCI_BUS_FLAGS_NO_MSI set for %s subordinate bus.\n", | |
1637 | pci_name(dev)); | |
1638 | dev->subordinate->bus_flags |= PCI_BUS_FLAGS_NO_MSI; | |
1639 | } | |
1640 | } | |
1641 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8131_BRIDGE, quirk_disable_msi); | |
6397c75c BG |
1642 | |
1643 | /* Go through the list of Hypertransport capabilities and | |
1644 | * return 1 if a HT MSI capability is found and enabled */ | |
1645 | static int __devinit msi_ht_cap_enabled(struct pci_dev *dev) | |
1646 | { | |
7a380507 ME |
1647 | int pos, ttl = 48; |
1648 | ||
1649 | pos = pci_find_ht_capability(dev, HT_CAPTYPE_MSI_MAPPING); | |
1650 | while (pos && ttl--) { | |
1651 | u8 flags; | |
1652 | ||
1653 | if (pci_read_config_byte(dev, pos + HT_MSI_FLAGS, | |
1654 | &flags) == 0) | |
1655 | { | |
1656 | printk(KERN_INFO "PCI: Found %s HT MSI Mapping on %s\n", | |
1657 | flags & HT_MSI_FLAGS_ENABLE ? | |
1658 | "enabled" : "disabled", pci_name(dev)); | |
1659 | return (flags & HT_MSI_FLAGS_ENABLE) != 0; | |
6397c75c | 1660 | } |
7a380507 ME |
1661 | |
1662 | pos = pci_find_next_ht_capability(dev, pos, | |
1663 | HT_CAPTYPE_MSI_MAPPING); | |
6397c75c BG |
1664 | } |
1665 | return 0; | |
1666 | } | |
1667 | ||
1668 | /* Check the hypertransport MSI mapping to know whether MSI is enabled or not */ | |
1669 | static void __devinit quirk_msi_ht_cap(struct pci_dev *dev) | |
1670 | { | |
1671 | if (dev->subordinate && !msi_ht_cap_enabled(dev)) { | |
1672 | printk(KERN_WARNING "PCI: MSI quirk detected. " | |
1673 | "MSI disabled on chipset %s.\n", | |
1674 | pci_name(dev)); | |
1675 | dev->subordinate->bus_flags |= PCI_BUS_FLAGS_NO_MSI; | |
1676 | } | |
1677 | } | |
1678 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_HT2000_PCIE, | |
1679 | quirk_msi_ht_cap); | |
1680 | ||
1681 | /* The nVidia CK804 chipset may have 2 HT MSI mappings. | |
1682 | * MSI are supported if the MSI capability set in any of these mappings. | |
1683 | */ | |
1684 | static void __devinit quirk_nvidia_ck804_msi_ht_cap(struct pci_dev *dev) | |
1685 | { | |
1686 | struct pci_dev *pdev; | |
1687 | ||
1688 | if (!dev->subordinate) | |
1689 | return; | |
1690 | ||
1691 | /* check HT MSI cap on this chipset and the root one. | |
1692 | * a single one having MSI is enough to be sure that MSI are supported. | |
1693 | */ | |
11f242f0 | 1694 | pdev = pci_get_slot(dev->bus, 0); |
0c875c28 | 1695 | if (!msi_ht_cap_enabled(dev) && !msi_ht_cap_enabled(pdev)) { |
6397c75c BG |
1696 | printk(KERN_WARNING "PCI: MSI quirk detected. " |
1697 | "MSI disabled on chipset %s.\n", | |
1698 | pci_name(dev)); | |
1699 | dev->subordinate->bus_flags |= PCI_BUS_FLAGS_NO_MSI; | |
1700 | } | |
11f242f0 | 1701 | pci_dev_put(pdev); |
6397c75c BG |
1702 | } |
1703 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_CK804_PCIE, | |
1704 | quirk_nvidia_ck804_msi_ht_cap); | |
3f79e107 BG |
1705 | #endif /* CONFIG_PCI_MSI */ |
1706 | ||
1da177e4 LT |
1707 | EXPORT_SYMBOL(pcie_mch_quirk); |
1708 | #ifdef CONFIG_HOTPLUG | |
1709 | EXPORT_SYMBOL(pci_fixup_device); | |
1710 | #endif |