| Start/ | End/ | |||
| True | False | - | Line | Source |
| 1 | /* | |||
| 2 | * Exceptions for specific devices. Usually work-arounds for fatal design flaws. | |||
| 3 | */ | |||
| 4 | ||||
| 5 | #include <linux/delay.h> | |||
| 6 | #include <linux/dmi.h> | |||
| 7 | #include <linux/pci.h> | |||
| 8 | #include <linux/init.h> | |||
| 9 | #include "pci.h" | |||
| 10 | ||||
| 11 | ||||
| 0 | 0 | - | 12 | static void __devinit pci_fixup_i450nx(struct pci_dev *d) |
| 13 | { | |||
| 14 | /* | |||
| 15 | * i450NX -- Find and scan all secondary buses on all PXB's. | |||
| 16 | */ | |||
| 17 | int pxb, reg; | |||
| 18 | u8 busno, suba, subb; | |||
| 19 | ||||
| 20 | printk(KERN_WARNING "PCI: Searching for i450NX host bridges on %s\n", pci_name(d)); | |||
| 21 | reg = 0xd0; | |||
| 0 | 0 | - | 22 | for(pxb=0; pxb<2; pxb++) { |
| 23 | pci_read_config_byte(d, reg++, &busno); | |||
| 24 | pci_read_config_byte(d, reg++, &suba); | |||
| 25 | pci_read_config_byte(d, reg++, &subb); | |||
| 26 | DBG("i450NX PXB %d: %02x/%02x/%02x\n", pxb, busno, suba, subb); | |||
| 0 | 0 | - | 27 | if (busno) |
| 28 | pci_scan_bus(busno, &pci_root_ops, NULL); /* Bus A */ | |||
| 0 | 0 | - | 29 | if (suba < subb) |
| 30 | pci_scan_bus(suba+1, &pci_root_ops, NULL); /* Bus B */ | |||
| 31 | } | |||
| 32 | pcibios_last_bus = -1; | |||
| 33 | } | |||
| 34 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82451NX, pci_fixup_i450nx); | |||
| 35 | ||||
| 0 | 0 | - | 36 | static void __devinit pci_fixup_i450gx(struct pci_dev *d) |
| 37 | { | |||
| 38 | /* | |||
| 39 | * i450GX and i450KX -- Find and scan all secondary buses. | |||
| 40 | * (called separately for each PCI bridge found) | |||
| 41 | */ | |||
| 42 | u8 busno; | |||
| 43 | pci_read_config_byte(d, 0x4a, &busno); | |||
| 44 | printk(KERN_INFO "PCI: i440KX/GX host bridge %s: secondary bus %02x\n", pci_name(d), busno); | |||
| 45 | pci_scan_bus(busno, &pci_root_ops, NULL); | |||
| 46 | pcibios_last_bus = -1; | |||
| 47 | } | |||
| 48 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82454GX, pci_fixup_i450gx); | |||
| 49 | ||||
| 0 | 0 | - | 50 | static void __devinit pci_fixup_umc_ide(struct pci_dev *d) |
| 51 | { | |||
| 52 | /* | |||
| 53 | * UM8886BF IDE controller sets region type bits incorrectly, | |||
| 54 | * therefore they look like memory despite of them being I/O. | |||
| 55 | */ | |||
| 56 | int i; | |||
| 57 | ||||
| 58 | printk(KERN_WARNING "PCI: Fixing base address flags for device %s\n", pci_name(d)); | |||
| 0 | 0 | - | 59 | for(i=0; i<4; i++) |
| 60 | d->resource[i].flags |= PCI_BASE_ADDRESS_SPACE_IO; | |||
| 61 | } | |||
| 62 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_UMC, PCI_DEVICE_ID_UMC_UM8886BF, pci_fixup_umc_ide); | |||
| 63 | ||||
| 0 | 0 | - | 64 | static void __devinit pci_fixup_ncr53c810(struct pci_dev *d) |
| 65 | { | |||
| 66 | /* | |||
| 67 | * NCR 53C810 returns class code 0 (at least on some systems). | |||
| 68 | * Fix class to be PCI_CLASS_STORAGE_SCSI | |||
| 69 | */ | |||
| 0 | 0 | - | 70 | if (!d->class) { |
| 71 | printk(KERN_WARNING "PCI: fixing NCR 53C810 class code for %s\n", pci_name(d)); | |||
| 72 | d->class = PCI_CLASS_STORAGE_SCSI << 8; | |||
| 73 | } | |||
| 74 | } | |||
| 75 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NCR, PCI_DEVICE_ID_NCR_53C810, pci_fixup_ncr53c810); | |||
| 76 | ||||
| 114 | 6 | 77 | static void __devinit pci_fixup_ide_bases(struct pci_dev *d) | |
| 78 | { | |||
| 79 | int i; | |||
| 80 | ||||
| 81 | /* | |||
| 82 | * PCI IDE controllers use non-standard I/O port decoding, respect it. | |||
| 83 | */ | |||
| 108 | 6 | 84 | if ((d->class >> 8) != PCI_CLASS_STORAGE_IDE) | |
| 108 | 85 | return; | ||
| 86 | DBG("PCI: IDE base address fixup for %s\n", pci_name(d)); | |||
| 24 | 6 | 87 | for(i=0; i<4; i++) { | |
| 88 | struct resource *r = &d->resource[i]; | |||
| 0 | 24 | - | 89 | if ((r->start & ~0x80) == 0x374) { |
| 90 | r->start |= 2; | |||
| 91 | r->end = r->start; | |||
| 92 | } | |||
| 93 | } | |||
| 94 | } | |||
| 95 | DECLARE_PCI_FIXUP_HEADER(PCI_ANY_ID, PCI_ANY_ID, pci_fixup_ide_bases); | |||
| 96 | ||||
| 0 | 0 | - | 97 | static void __devinit pci_fixup_ide_trash(struct pci_dev *d) |
| 98 | { | |||
| 99 | int i; | |||
| 100 | ||||
| 101 | /* | |||
| 102 | * Runs the fixup only for the first IDE controller | |||
| 103 | * (Shai Fultheim - shai@ftcon.com) | |||
| 104 | */ | |||
| 105 | static int called = 0; | |||
| 0 | 0 | - | 106 | if (called) |
| 0 | - | 107 | return; | |
| 108 | called = 1; | |||
| 109 | ||||
| 110 | /* | |||
| 111 | * There exist PCI IDE controllers which have utter garbage | |||
| 112 | * in first four base registers. Ignore that. | |||
| 113 | */ | |||
| 114 | DBG("PCI: IDE base address trash cleared for %s\n", pci_name(d)); | |||
| 0 | 0 | - | 115 | for(i=0; i<4; i++) |
| 116 | d->resource[i].start = d->resource[i].end = d->resource[i].flags = 0; | |||
| 117 | } | |||
| 118 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_5513, pci_fixup_ide_trash); | |||
| 119 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_10, pci_fixup_ide_trash); | |||
| 120 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_11, pci_fixup_ide_trash); | |||
| 121 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_9, pci_fixup_ide_trash); | |||
| 122 | ||||
| 0 | 0 | - | 123 | static void __devinit pci_fixup_latency(struct pci_dev *d) |
| 124 | { | |||
| 125 | /* | |||
| 126 | * SiS 5597 and 5598 chipsets require latency timer set to | |||
| 127 | * at most 32 to avoid lockups. | |||
| 128 | */ | |||
| 129 | DBG("PCI: Setting max latency to 32\n"); | |||
| 130 | pcibios_max_latency = 32; | |||
| 131 | } | |||
| 132 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_5597, pci_fixup_latency); | |||
| 133 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_5598, pci_fixup_latency); | |||
| 134 | ||||
| 0 | 0 | - | 135 | static void __devinit pci_fixup_piix4_acpi(struct pci_dev *d) |
| 136 | { | |||
| 137 | /* | |||
| 138 | * PIIX4 ACPI device: hardwired IRQ9 | |||
| 139 | */ | |||
| 140 | d->irq = 9; | |||
| 141 | } | |||
| 142 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82371AB_3, pci_fixup_piix4_acpi); | |||
| 143 | ||||
| 144 | /* | |||
| 145 | * Addresses issues with problems in the memory write queue timer in | |||
| 146 | * certain VIA Northbridges. This bugfix is per VIA's specifications, | |||
| 147 | * except for the KL133/KM133: clearing bit 5 on those Northbridges seems | |||
| 148 | * to trigger a bug in its integrated ProSavage video card, which | |||
| 149 | * causes screen corruption. We only clear bits 6 and 7 for that chipset, | |||
| 150 | * until VIA can provide us with definitive information on why screen | |||
| 151 | * corruption occurs, and what exactly those bits do. | |||
| 152 | * | |||
| 153 | * VIA 8363,8622,8361 Northbridges: | |||
| 154 | * - bits 5, 6, 7 at offset 0x55 need to be turned off | |||
| 155 | * VIA 8367 (KT266x) Northbridges: | |||
| 156 | * - bits 5, 6, 7 at offset 0x95 need to be turned off | |||
| 157 | * VIA 8363 rev 0x81/0x84 (KL133/KM133) Northbridges: | |||
| 158 | * - bits 6, 7 at offset 0x55 need to be turned off | |||
| 159 | */ | |||
| 160 | ||||
| 161 | #define VIA_8363_KL133_REVISION_ID 0x81 | |||
| 162 | #define VIA_8363_KM133_REVISION_ID 0x84 | |||
| 163 | ||||
| 0 | 0 | - | 164 | static void __devinit pci_fixup_via_northbridge_bug(struct pci_dev *d) |
| 165 | { | |||
| 166 | u8 v; | |||
| 167 | u8 revision; | |||
| 168 | int where = 0x55; | |||
| 169 | int mask = 0x1f; /* clear bits 5, 6, 7 by default */ | |||
| 170 | ||||
| 171 | pci_read_config_byte(d, PCI_REVISION_ID, &revision); | |||
| 172 | ||||
| 0 | 0 | - | 173 | if (d->device == PCI_DEVICE_ID_VIA_8367_0) { |
| 174 | /* fix pci bus latency issues resulted by NB bios error | |||
| 175 | it appears on bug free^Wreduced kt266x's bios forces | |||
| 176 | NB latency to zero */ | |||
| 177 | pci_write_config_byte(d, PCI_LATENCY_TIMER, 0); | |||
| 178 | ||||
| 179 | where = 0x95; /* the memory write queue timer register is | |||
| 180 | different for the KT266x's: 0x95 not 0x55 */ | |||
| 181 | } else if (d->device == PCI_DEVICE_ID_VIA_8363_0 && | |||
| 182 | (revision == VIA_8363_KL133_REVISION_ID || | |||
| 0 | 0 | - | 183 | revision == VIA_8363_KM133_REVISION_ID)) { |
| 0 | - | 183 | T && (T || _) | |
| 0 | - | 183 | T && (F || T) | |
| 0 | - | 183 | T && (F || F) | |
| 0 | - | 183 | F && (_ || _) | |
| 184 | mask = 0x3f; /* clear only bits 6 and 7; clearing bit 5 | |||
| 185 | causes screen corruption on the KL133/KM133 */ | |||
| 186 | } | |||
| 187 | ||||
| 188 | pci_read_config_byte(d, where, &v); | |||
| 0 | 0 | - | 189 | if (v & ~mask) { |
| 190 | printk(KERN_WARNING "Disabling VIA memory write queue (PCI ID %04x, rev %02x): [%02x] %02x & %02x -> %02x\n", \ | |||
| 191 | d->device, revision, where, v, mask, v & mask); | |||
| 192 | v &= mask; | |||
| 193 | pci_write_config_byte(d, where, v); | |||
| 194 | } | |||
| 195 | } | |||
| 196 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8363_0, pci_fixup_via_northbridge_bug); | |||
| 197 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8622, pci_fixup_via_northbridge_bug); | |||
| 198 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8361, pci_fixup_via_northbridge_bug); | |||
| 199 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8367_0, pci_fixup_via_northbridge_bug); | |||
| 200 | ||||
| 201 | /* | |||
| 202 | * For some reasons Intel decided that certain parts of their | |||
| 203 | * 815, 845 and some other chipsets must look like PCI-to-PCI bridges | |||
| 204 | * while they are obviously not. The 82801 family (AA, AB, BAM/CAM, | |||
| 205 | * BA/CA/DB and E) PCI bridges are actually HUB-to-PCI ones, according | |||
| 206 | * to Intel terminology. These devices do forward all addresses from | |||
| 207 | * system to PCI bus no matter what are their window settings, so they are | |||
| 208 | * "transparent" (or subtractive decoding) from programmers point of view. | |||
| 209 | */ | |||
| 0 | 0 | - | 210 | static void __devinit pci_fixup_transparent_bridge(struct pci_dev *dev) |
| 211 | { | |||
| 212 | if ((dev->class >> 8) == PCI_CLASS_BRIDGE_PCI && | |||
| 0 | 0 | - | 213 | (dev->device & 0xff00) == 0x2400) |
| 0 | - | 213 | T && T | |
| 0 | - | 213 | T && F | |
| 0 | - | 213 | F && _ | |
| 214 | dev->transparent = 1; | |||
| 215 | } | |||
| 216 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_ANY_ID, pci_fixup_transparent_bridge); | |||
| 217 | ||||
| 218 | /* | |||
| 219 | * Fixup for C1 Halt Disconnect problem on nForce2 systems. | |||
| 220 | * | |||
| 221 | * From information provided by "Allen Martin" <AMartin@nvidia.com>: | |||
| 222 | * | |||
| 223 | * A hang is caused when the CPU generates a very fast CONNECT/HALT cycle | |||
| 224 | * sequence. Workaround is to set the SYSTEM_IDLE_TIMEOUT to 80 ns. | |||
| 225 | * This allows the state-machine and timer to return to a proper state within | |||
| 226 | * 80 ns of the CONNECT and probe appearing together. Since the CPU will not | |||
| 227 | * issue another HALT within 80 ns of the initial HALT, the failure condition | |||
| 228 | * is avoided. | |||
| 229 | */ | |||
| 0 | 0 | - | 230 | static void __init pci_fixup_nforce2(struct pci_dev *dev) |
| 231 | { | |||
| 232 | u32 val; | |||
| 233 | ||||
| 234 | /* | |||
| 235 | * Chip Old value New value | |||
| 236 | * C17 0x1F0FFF01 0x1F01FF01 | |||
| 237 | * C18D 0x9F0FFF01 0x9F01FF01 | |||
| 238 | * | |||
| 239 | * Northbridge chip version may be determined by | |||
| 240 | * reading the PCI revision ID (0xC1 or greater is C18D). | |||
| 241 | */ | |||
| 242 | pci_read_config_dword(dev, 0x6c, &val); | |||
| 243 | ||||
| 244 | /* | |||
| 245 | * Apply fixup if needed, but don't touch disconnect state | |||
| 246 | */ | |||
| 0 | 0 | - | 247 | if ((val & 0x00FF0000) != 0x00010000) { |
| 248 | printk(KERN_WARNING "PCI: nForce2 C1 Halt Disconnect fixup\n"); | |||
| 249 | pci_write_config_dword(dev, 0x6c, (val & 0xFF00FFFF) | 0x00010000); | |||
| 250 | } | |||
| 251 | } | |||
| 252 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE2, pci_fixup_nforce2); | |||
| 253 | ||||
| 254 | /* Max PCI Express root ports */ | |||
| 255 | #define MAX_PCIEROOT 6 | |||
| 256 | static int quirk_aspm_offset[MAX_PCIEROOT << 3]; | |||
| 257 | ||||
| 258 | #define GET_INDEX(a, b) ((((a) - PCI_DEVICE_ID_INTEL_MCH_PA) << 3) + ((b) & 7)) | |||
| 259 | ||||
| 0 | 0 | - | 260 | static int quirk_pcie_aspm_read(struct pci_bus *bus, unsigned int devfn, int where, int size, u32 *value) |
| 261 | { | |||
| 0 | - | 262 | return raw_pci_ops->read(0, bus->number, devfn, where, size, value); | |
| 263 | } | |||
| 264 | ||||
| 265 | /* | |||
| 266 | * Replace the original pci bus ops for write with a new one that will filter | |||
| 267 | * the request to insure ASPM cannot be enabled. | |||
| 268 | */ | |||
| 0 | 0 | - | 269 | static int quirk_pcie_aspm_write(struct pci_bus *bus, unsigned int devfn, int where, int size, u32 value) |
| 270 | { | |||
| 271 | u8 offset; | |||
| 272 | ||||
| 273 | offset = quirk_aspm_offset[GET_INDEX(bus->self->device, devfn)]; | |||
| 274 | ||||
| 0 | 0 | - | 275 | if ((offset) && (where == offset)) |
| 0 | - | 275 | (T) && (T) | |
| 0 | - | 275 | (T) && (F) | |
| 0 | - | 275 | (F) && (_) | |
| 276 | value = value & 0xfffffffc; | |||
| 277 | ||||
| 0 | - | 278 | return raw_pci_ops->write(0, bus->number, devfn, where, size, value); | |
| 279 | } | |||
| 280 | ||||
| 281 | static struct pci_ops quirk_pcie_aspm_ops = { | |||
| 282 | .read = quirk_pcie_aspm_read, | |||
| 283 | .write = quirk_pcie_aspm_write, | |||
| 284 | }; | |||
| 285 | ||||
| 286 | /* | |||
| 287 | * Prevents PCI Express ASPM (Active State Power Management) being enabled. | |||
| 288 | * | |||
| 289 | * Save the register offset, where the ASPM control bits are located, | |||
| 290 | * for each PCI Express device that is in the device list of | |||
| 291 | * the root port in an array for fast indexing. Replace the bus ops | |||
| 292 | * with the modified one. | |||
| 293 | */ | |||
| 0 | 0 | - | 294 | static void pcie_rootport_aspm_quirk(struct pci_dev *pdev) |
| 295 | { | |||
| 296 | int cap_base, i; | |||
| 297 | struct pci_bus *pbus; | |||
| 298 | struct pci_dev *dev; | |||
| 299 | ||||
| 0 | 0 | - | 300 | if ((pbus = pdev->subordinate) == NULL) |
| 0 | - | 301 | return; | |
| 302 | ||||
| 303 | /* | |||
| 304 | * Check if the DID of pdev matches one of the six root ports. This | |||
| 305 | * check is needed in the case this function is called directly by the | |||
| 306 | * hot-plug driver. | |||
| 307 | */ | |||
| 308 | if ((pdev->device < PCI_DEVICE_ID_INTEL_MCH_PA) || | |||
| 0 | 0 | - | 309 | (pdev->device > PCI_DEVICE_ID_INTEL_MCH_PC1)) |
| 0 | - | 309 | (T) || (_) | |
| 0 | - | 309 | (F) || (T) | |
| 0 | - | 309 | (F) || (F) | |
| 0 | - | 310 | return; | |
| 311 | ||||
| 0 | 0 | - | 312 | if (list_empty(&pbus->devices)) { |
| 313 | /* | |||
| 314 | * If no device is attached to the root port at power-up or | |||
| 315 | * after hot-remove, the pbus->devices is empty and this code | |||
| 316 | * will set the offsets to zero and the bus ops to parent's bus | |||
| 317 | * ops, which is unmodified. | |||
| 318 | */ | |||
| 0 | 0 | - | 319 | for (i= GET_INDEX(pdev->device, 0); i <= GET_INDEX(pdev->device, 7); ++i) |
| 320 | quirk_aspm_offset[i] = 0; | |||
| 321 | ||||
| 322 | pbus->ops = pbus->parent->ops; | |||
| 323 | } else { | |||
| 324 | /* | |||
| 325 | * If devices are attached to the root port at power-up or | |||
| 326 | * after hot-add, the code loops through the device list of | |||
| 327 | * each root port to save the register offsets and replace the | |||
| 328 | * bus ops. | |||
| 329 | */ | |||
| 0 | 0 | - | 330 | list_for_each_entry(dev, &pbus->devices, bus_list) { |
| 331 | /* There are 0 to 8 devices attached to this bus */ | |||
| 332 | cap_base = pci_find_capability(dev, PCI_CAP_ID_EXP); | |||
| 333 | quirk_aspm_offset[GET_INDEX(pdev->device, dev->devfn)]= cap_base + 0x10; | |||
| 334 | } | |||
| 335 | pbus->ops = &quirk_pcie_aspm_ops; | |||
| 336 | } | |||
| 337 | } | |||
| 338 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_MCH_PA, pcie_rootport_aspm_quirk ); | |||
| 339 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_MCH_PA1, pcie_rootport_aspm_quirk ); | |||
| 340 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_MCH_PB, pcie_rootport_aspm_quirk ); | |||
| 341 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_MCH_PB1, pcie_rootport_aspm_quirk ); | |||
| 342 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_MCH_PC, pcie_rootport_aspm_quirk ); | |||
| 343 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_MCH_PC1, pcie_rootport_aspm_quirk ); | |||
| 344 | ||||
| 345 | /* | |||
| 346 | * Fixup to mark boot BIOS video selected by BIOS before it changes | |||
| 347 | * | |||
| 348 | * From information provided by "Jon Smirl" <jonsmirl@gmail.com> | |||
| 349 | * | |||
| 350 | * The standard boot ROM sequence for an x86 machine uses the BIOS | |||
| 351 | * to select an initial video card for boot display. This boot video | |||
| 352 | * card will have it's BIOS copied to C0000 in system RAM. | |||
| 353 | * IORESOURCE_ROM_SHADOW is used to associate the boot video | |||
| 354 | * card with this copy. On laptops this copy has to be used since | |||
| 355 | * the main ROM may be compressed or combined with another image. | |||
| 356 | * See pci_map_rom() for use of this flag. IORESOURCE_ROM_SHADOW | |||
| 357 | * is marked here since the boot video device will be the only enabled | |||
| 358 | * video device at this point. | |||
| 359 | */ | |||
| 360 | ||||
| 114 | 6 | 361 | static void __devinit pci_fixup_video(struct pci_dev *pdev) | |
| 362 | { | |||
| 363 | struct pci_dev *bridge; | |||
| 364 | struct pci_bus *bus; | |||
| 365 | u16 config; | |||
| 366 | ||||
| 108 | 6 | 367 | if ((pdev->class >> 8) != PCI_CLASS_DISPLAY_VGA) | |
| 108 | 368 | return; | ||
| 369 | ||||
| 370 | /* Is VGA routed to us? */ | |||
| 371 | bus = pdev->bus; | |||
| 12 | 6 | 372 | while (bus) { | |
| 373 | bridge = bus->self; | |||
| 6 | 6 | 374 | if (bridge) { | |
| 375 | pci_read_config_word(bridge, PCI_BRIDGE_CONTROL, | |||
| 376 | &config); | |||
| 0 | 6 | - | 377 | if (!(config & PCI_BRIDGE_CTL_VGA)) |
| 0 | - | 378 | return; | |
| 379 | } | |||
| 380 | bus = bus->parent; | |||
| 381 | } | |||
| 382 | pci_read_config_word(pdev, PCI_COMMAND, &config); | |||
| 6 | 0 | - | 383 | if (config & (PCI_COMMAND_IO | PCI_COMMAND_MEMORY)) { |
| 384 | pdev->resource[PCI_ROM_RESOURCE].flags |= IORESOURCE_ROM_SHADOW; | |||
| 385 | printk(KERN_DEBUG "Boot video device is %s\n", pci_name(pdev)); | |||
| 386 | } | |||
| 387 | } | |||
| 388 | DECLARE_PCI_FIXUP_HEADER(PCI_ANY_ID, PCI_ANY_ID, pci_fixup_video); | |||
| 389 | ||||
| 390 | /* | |||
| 391 | * Some Toshiba laptops need extra code to enable their TI TSB43AB22/A. | |||
| 392 | * | |||
| 393 | * We pretend to bring them out of full D3 state, and restore the proper | |||
| 394 | * IRQ, PCI cache line size, and BARs, otherwise the device won't function | |||
| 395 | * properly. In some cases, the device will generate an interrupt on | |||
| 396 | * the wrong IRQ line, causing any devices sharing the the line it's | |||
| 397 | * *supposed* to use to be disabled by the kernel's IRQ debug code. | |||
| 398 | */ | |||
| 399 | static u16 toshiba_line_size; | |||
| 400 | ||||
| 401 | static struct dmi_system_id __devinitdata toshiba_ohci1394_dmi_table[] = { | |||
| 402 | { | |||
| 403 | .ident = "Toshiba PS5 based laptop", | |||
| 404 | .matches = { | |||
| 405 | DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), | |||
| 406 | DMI_MATCH(DMI_PRODUCT_VERSION, "PS5"), | |||
| 407 | }, | |||
| 408 | }, | |||
| 409 | { | |||
| 410 | .ident = "Toshiba PSM4 based laptop", | |||
| 411 | .matches = { | |||
| 412 | DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), | |||
| 413 | DMI_MATCH(DMI_PRODUCT_VERSION, "PSM4"), | |||
| 414 | }, | |||
| 415 | }, | |||
| 416 | { | |||
| 417 | .ident = "Toshiba A40 based laptop", | |||
| 418 | .matches = { | |||
| 419 | DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), | |||
| 420 | DMI_MATCH(DMI_PRODUCT_VERSION, "PSA40U"), | |||
| 421 | }, | |||
| 422 | }, | |||
| 423 | { } | |||
| 424 | }; | |||
| 425 | ||||
| 0 | 0 | - | 426 | static void __devinit pci_pre_fixup_toshiba_ohci1394(struct pci_dev *dev) |
| 427 | { | |||
| 0 | 0 | - | 428 | if (!dmi_check_system(toshiba_ohci1394_dmi_table)) |
| 0 | - | 429 | return; /* only applies to certain Toshibas (so far) */ | |
| 430 | ||||
| 431 | dev->current_state = PCI_D3cold; | |||
| 432 | pci_read_config_word(dev, PCI_CACHE_LINE_SIZE, &toshiba_line_size); | |||
| 433 | } | |||
| 434 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_TI, 0x8032, | |||
| 435 | pci_pre_fixup_toshiba_ohci1394); | |||
| 436 | ||||
| 0 | 0 | - | 437 | static void __devinit pci_post_fixup_toshiba_ohci1394(struct pci_dev *dev) |
| 438 | { | |||
| 0 | 0 | - | 439 | if (!dmi_check_system(toshiba_ohci1394_dmi_table)) |
| 0 | - | 440 | return; /* only applies to certain Toshibas (so far) */ | |
| 441 | ||||
| 442 | /* Restore config space on Toshiba laptops */ | |||
| 443 | pci_write_config_word(dev, PCI_CACHE_LINE_SIZE, toshiba_line_size); | |||
| 444 | pci_read_config_byte(dev, PCI_INTERRUPT_LINE, (u8 *)&dev->irq); | |||
| 445 | pci_write_config_dword(dev, PCI_BASE_ADDRESS_0, | |||
| 446 | pci_resource_start(dev, 0)); | |||
| 447 | pci_write_config_dword(dev, PCI_BASE_ADDRESS_1, | |||
| 448 | pci_resource_start(dev, 1)); | |||
| 449 | } | |||
| 450 | DECLARE_PCI_FIXUP_ENABLE(PCI_VENDOR_ID_TI, 0x8032, | |||
| 451 | pci_post_fixup_toshiba_ohci1394); | |||
| 452 | ||||
| 453 | ||||
| 454 | /* | |||
| 455 | * Prevent the BIOS trapping accesses to the Cyrix CS5530A video device | |||
| 456 | * configuration space. | |||
| 457 | */ | |||
| 0 | 0 | - | 458 | static void __devinit pci_early_fixup_cyrix_5530(struct pci_dev *dev) |
| 459 | { | |||
| 460 | u8 r; | |||
| 461 | /* clear 'F4 Video Configuration Trap' bit */ | |||
| 462 | pci_read_config_byte(dev, 0x42, &r); | |||
| 463 | r &= 0xfd; | |||
| 464 | pci_write_config_byte(dev, 0x42, r); | |||
| 465 | } | |||
| 466 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_CYRIX, PCI_DEVICE_ID_CYRIX_5530_LEGACY, | |||
| 467 | pci_early_fixup_cyrix_5530); | |||
| ***TER 18% (17/97) of SOURCE FILE fixup.c | ||||