557 lines
18 KiB
C
557 lines
18 KiB
C
/*
|
|
* Exceptions for specific devices. Usually work-arounds for fatal design flaws.
|
|
*/
|
|
|
|
#include <linux/delay.h>
|
|
#include <linux/dmi.h>
|
|
#include <linux/pci.h>
|
|
#include <linux/vgaarb.h>
|
|
#include <asm/hpet.h>
|
|
#include <asm/pci_x86.h>
|
|
|
|
static void pci_fixup_i450nx(struct pci_dev *d)
|
|
{
|
|
/*
|
|
* i450NX -- Find and scan all secondary buses on all PXB's.
|
|
*/
|
|
int pxb, reg;
|
|
u8 busno, suba, subb;
|
|
|
|
dev_warn(&d->dev, "Searching for i450NX host bridges\n");
|
|
reg = 0xd0;
|
|
for(pxb = 0; pxb < 2; pxb++) {
|
|
pci_read_config_byte(d, reg++, &busno);
|
|
pci_read_config_byte(d, reg++, &suba);
|
|
pci_read_config_byte(d, reg++, &subb);
|
|
dev_dbg(&d->dev, "i450NX PXB %d: %02x/%02x/%02x\n", pxb, busno,
|
|
suba, subb);
|
|
if (busno)
|
|
pcibios_scan_root(busno); /* Bus A */
|
|
if (suba < subb)
|
|
pcibios_scan_root(suba+1); /* Bus B */
|
|
}
|
|
pcibios_last_bus = -1;
|
|
}
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82451NX, pci_fixup_i450nx);
|
|
|
|
static void pci_fixup_i450gx(struct pci_dev *d)
|
|
{
|
|
/*
|
|
* i450GX and i450KX -- Find and scan all secondary buses.
|
|
* (called separately for each PCI bridge found)
|
|
*/
|
|
u8 busno;
|
|
pci_read_config_byte(d, 0x4a, &busno);
|
|
dev_info(&d->dev, "i440KX/GX host bridge; secondary bus %02x\n", busno);
|
|
pcibios_scan_root(busno);
|
|
pcibios_last_bus = -1;
|
|
}
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82454GX, pci_fixup_i450gx);
|
|
|
|
static void pci_fixup_umc_ide(struct pci_dev *d)
|
|
{
|
|
/*
|
|
* UM8886BF IDE controller sets region type bits incorrectly,
|
|
* therefore they look like memory despite of them being I/O.
|
|
*/
|
|
int i;
|
|
|
|
dev_warn(&d->dev, "Fixing base address flags\n");
|
|
for(i = 0; i < 4; i++)
|
|
d->resource[i].flags |= PCI_BASE_ADDRESS_SPACE_IO;
|
|
}
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_UMC, PCI_DEVICE_ID_UMC_UM8886BF, pci_fixup_umc_ide);
|
|
|
|
static void pci_fixup_ncr53c810(struct pci_dev *d)
|
|
{
|
|
/*
|
|
* NCR 53C810 returns class code 0 (at least on some systems).
|
|
* Fix class to be PCI_CLASS_STORAGE_SCSI
|
|
*/
|
|
if (!d->class) {
|
|
dev_warn(&d->dev, "Fixing NCR 53C810 class code\n");
|
|
d->class = PCI_CLASS_STORAGE_SCSI << 8;
|
|
}
|
|
}
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NCR, PCI_DEVICE_ID_NCR_53C810, pci_fixup_ncr53c810);
|
|
|
|
static void pci_fixup_latency(struct pci_dev *d)
|
|
{
|
|
/*
|
|
* SiS 5597 and 5598 chipsets require latency timer set to
|
|
* at most 32 to avoid lockups.
|
|
*/
|
|
dev_dbg(&d->dev, "Setting max latency to 32\n");
|
|
pcibios_max_latency = 32;
|
|
}
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_5597, pci_fixup_latency);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_5598, pci_fixup_latency);
|
|
|
|
static void pci_fixup_piix4_acpi(struct pci_dev *d)
|
|
{
|
|
/*
|
|
* PIIX4 ACPI device: hardwired IRQ9
|
|
*/
|
|
d->irq = 9;
|
|
}
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82371AB_3, pci_fixup_piix4_acpi);
|
|
|
|
/*
|
|
* Addresses issues with problems in the memory write queue timer in
|
|
* certain VIA Northbridges. This bugfix is per VIA's specifications,
|
|
* except for the KL133/KM133: clearing bit 5 on those Northbridges seems
|
|
* to trigger a bug in its integrated ProSavage video card, which
|
|
* causes screen corruption. We only clear bits 6 and 7 for that chipset,
|
|
* until VIA can provide us with definitive information on why screen
|
|
* corruption occurs, and what exactly those bits do.
|
|
*
|
|
* VIA 8363,8622,8361 Northbridges:
|
|
* - bits 5, 6, 7 at offset 0x55 need to be turned off
|
|
* VIA 8367 (KT266x) Northbridges:
|
|
* - bits 5, 6, 7 at offset 0x95 need to be turned off
|
|
* VIA 8363 rev 0x81/0x84 (KL133/KM133) Northbridges:
|
|
* - bits 6, 7 at offset 0x55 need to be turned off
|
|
*/
|
|
|
|
#define VIA_8363_KL133_REVISION_ID 0x81
|
|
#define VIA_8363_KM133_REVISION_ID 0x84
|
|
|
|
static void pci_fixup_via_northbridge_bug(struct pci_dev *d)
|
|
{
|
|
u8 v;
|
|
int where = 0x55;
|
|
int mask = 0x1f; /* clear bits 5, 6, 7 by default */
|
|
|
|
if (d->device == PCI_DEVICE_ID_VIA_8367_0) {
|
|
/* fix pci bus latency issues resulted by NB bios error
|
|
it appears on bug free^Wreduced kt266x's bios forces
|
|
NB latency to zero */
|
|
pci_write_config_byte(d, PCI_LATENCY_TIMER, 0);
|
|
|
|
where = 0x95; /* the memory write queue timer register is
|
|
different for the KT266x's: 0x95 not 0x55 */
|
|
} else if (d->device == PCI_DEVICE_ID_VIA_8363_0 &&
|
|
(d->revision == VIA_8363_KL133_REVISION_ID ||
|
|
d->revision == VIA_8363_KM133_REVISION_ID)) {
|
|
mask = 0x3f; /* clear only bits 6 and 7; clearing bit 5
|
|
causes screen corruption on the KL133/KM133 */
|
|
}
|
|
|
|
pci_read_config_byte(d, where, &v);
|
|
if (v & ~mask) {
|
|
dev_warn(&d->dev, "Disabling VIA memory write queue (PCI ID %04x, rev %02x): [%02x] %02x & %02x -> %02x\n", \
|
|
d->device, d->revision, where, v, mask, v & mask);
|
|
v &= mask;
|
|
pci_write_config_byte(d, where, v);
|
|
}
|
|
}
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8363_0, pci_fixup_via_northbridge_bug);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8622, pci_fixup_via_northbridge_bug);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8361, pci_fixup_via_northbridge_bug);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8367_0, pci_fixup_via_northbridge_bug);
|
|
DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8363_0, pci_fixup_via_northbridge_bug);
|
|
DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8622, pci_fixup_via_northbridge_bug);
|
|
DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8361, pci_fixup_via_northbridge_bug);
|
|
DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8367_0, pci_fixup_via_northbridge_bug);
|
|
|
|
/*
|
|
* For some reasons Intel decided that certain parts of their
|
|
* 815, 845 and some other chipsets must look like PCI-to-PCI bridges
|
|
* while they are obviously not. The 82801 family (AA, AB, BAM/CAM,
|
|
* BA/CA/DB and E) PCI bridges are actually HUB-to-PCI ones, according
|
|
* to Intel terminology. These devices do forward all addresses from
|
|
* system to PCI bus no matter what are their window settings, so they are
|
|
* "transparent" (or subtractive decoding) from programmers point of view.
|
|
*/
|
|
static void pci_fixup_transparent_bridge(struct pci_dev *dev)
|
|
{
|
|
if ((dev->device & 0xff00) == 0x2400)
|
|
dev->transparent = 1;
|
|
}
|
|
DECLARE_PCI_FIXUP_CLASS_HEADER(PCI_VENDOR_ID_INTEL, PCI_ANY_ID,
|
|
PCI_CLASS_BRIDGE_PCI, 8, pci_fixup_transparent_bridge);
|
|
|
|
/*
|
|
* Fixup for C1 Halt Disconnect problem on nForce2 systems.
|
|
*
|
|
* From information provided by "Allen Martin" <AMartin@nvidia.com>:
|
|
*
|
|
* A hang is caused when the CPU generates a very fast CONNECT/HALT cycle
|
|
* sequence. Workaround is to set the SYSTEM_IDLE_TIMEOUT to 80 ns.
|
|
* This allows the state-machine and timer to return to a proper state within
|
|
* 80 ns of the CONNECT and probe appearing together. Since the CPU will not
|
|
* issue another HALT within 80 ns of the initial HALT, the failure condition
|
|
* is avoided.
|
|
*/
|
|
static void pci_fixup_nforce2(struct pci_dev *dev)
|
|
{
|
|
u32 val;
|
|
|
|
/*
|
|
* Chip Old value New value
|
|
* C17 0x1F0FFF01 0x1F01FF01
|
|
* C18D 0x9F0FFF01 0x9F01FF01
|
|
*
|
|
* Northbridge chip version may be determined by
|
|
* reading the PCI revision ID (0xC1 or greater is C18D).
|
|
*/
|
|
pci_read_config_dword(dev, 0x6c, &val);
|
|
|
|
/*
|
|
* Apply fixup if needed, but don't touch disconnect state
|
|
*/
|
|
if ((val & 0x00FF0000) != 0x00010000) {
|
|
dev_warn(&dev->dev, "nForce2 C1 Halt Disconnect fixup\n");
|
|
pci_write_config_dword(dev, 0x6c, (val & 0xFF00FFFF) | 0x00010000);
|
|
}
|
|
}
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE2, pci_fixup_nforce2);
|
|
DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE2, pci_fixup_nforce2);
|
|
|
|
/* Max PCI Express root ports */
|
|
#define MAX_PCIEROOT 6
|
|
static int quirk_aspm_offset[MAX_PCIEROOT << 3];
|
|
|
|
#define GET_INDEX(a, b) ((((a) - PCI_DEVICE_ID_INTEL_MCH_PA) << 3) + ((b) & 7))
|
|
|
|
static int quirk_pcie_aspm_read(struct pci_bus *bus, unsigned int devfn, int where, int size, u32 *value)
|
|
{
|
|
return raw_pci_read(pci_domain_nr(bus), bus->number,
|
|
devfn, where, size, value);
|
|
}
|
|
|
|
/*
|
|
* Replace the original pci bus ops for write with a new one that will filter
|
|
* the request to insure ASPM cannot be enabled.
|
|
*/
|
|
static int quirk_pcie_aspm_write(struct pci_bus *bus, unsigned int devfn, int where, int size, u32 value)
|
|
{
|
|
u8 offset;
|
|
|
|
offset = quirk_aspm_offset[GET_INDEX(bus->self->device, devfn)];
|
|
|
|
if ((offset) && (where == offset))
|
|
value = value & ~PCI_EXP_LNKCTL_ASPMC;
|
|
|
|
return raw_pci_write(pci_domain_nr(bus), bus->number,
|
|
devfn, where, size, value);
|
|
}
|
|
|
|
static struct pci_ops quirk_pcie_aspm_ops = {
|
|
.read = quirk_pcie_aspm_read,
|
|
.write = quirk_pcie_aspm_write,
|
|
};
|
|
|
|
/*
|
|
* Prevents PCI Express ASPM (Active State Power Management) being enabled.
|
|
*
|
|
* Save the register offset, where the ASPM control bits are located,
|
|
* for each PCI Express device that is in the device list of
|
|
* the root port in an array for fast indexing. Replace the bus ops
|
|
* with the modified one.
|
|
*/
|
|
static void pcie_rootport_aspm_quirk(struct pci_dev *pdev)
|
|
{
|
|
int i;
|
|
struct pci_bus *pbus;
|
|
struct pci_dev *dev;
|
|
|
|
if ((pbus = pdev->subordinate) == NULL)
|
|
return;
|
|
|
|
/*
|
|
* Check if the DID of pdev matches one of the six root ports. This
|
|
* check is needed in the case this function is called directly by the
|
|
* hot-plug driver.
|
|
*/
|
|
if ((pdev->device < PCI_DEVICE_ID_INTEL_MCH_PA) ||
|
|
(pdev->device > PCI_DEVICE_ID_INTEL_MCH_PC1))
|
|
return;
|
|
|
|
if (list_empty(&pbus->devices)) {
|
|
/*
|
|
* If no device is attached to the root port at power-up or
|
|
* after hot-remove, the pbus->devices is empty and this code
|
|
* will set the offsets to zero and the bus ops to parent's bus
|
|
* ops, which is unmodified.
|
|
*/
|
|
for (i = GET_INDEX(pdev->device, 0); i <= GET_INDEX(pdev->device, 7); ++i)
|
|
quirk_aspm_offset[i] = 0;
|
|
|
|
pci_bus_set_ops(pbus, pbus->parent->ops);
|
|
} else {
|
|
/*
|
|
* If devices are attached to the root port at power-up or
|
|
* after hot-add, the code loops through the device list of
|
|
* each root port to save the register offsets and replace the
|
|
* bus ops.
|
|
*/
|
|
list_for_each_entry(dev, &pbus->devices, bus_list)
|
|
/* There are 0 to 8 devices attached to this bus */
|
|
quirk_aspm_offset[GET_INDEX(pdev->device, dev->devfn)] =
|
|
dev->pcie_cap + PCI_EXP_LNKCTL;
|
|
|
|
pci_bus_set_ops(pbus, &quirk_pcie_aspm_ops);
|
|
dev_info(&pbus->dev, "writes to ASPM control bits will be ignored\n");
|
|
}
|
|
|
|
}
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_MCH_PA, pcie_rootport_aspm_quirk);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_MCH_PA1, pcie_rootport_aspm_quirk);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_MCH_PB, pcie_rootport_aspm_quirk);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_MCH_PB1, pcie_rootport_aspm_quirk);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_MCH_PC, pcie_rootport_aspm_quirk);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_MCH_PC1, pcie_rootport_aspm_quirk);
|
|
|
|
/*
|
|
* Fixup to mark boot BIOS video selected by BIOS before it changes
|
|
*
|
|
* From information provided by "Jon Smirl" <jonsmirl@gmail.com>
|
|
*
|
|
* The standard boot ROM sequence for an x86 machine uses the BIOS
|
|
* to select an initial video card for boot display. This boot video
|
|
* card will have it's BIOS copied to C0000 in system RAM.
|
|
* IORESOURCE_ROM_SHADOW is used to associate the boot video
|
|
* card with this copy. On laptops this copy has to be used since
|
|
* the main ROM may be compressed or combined with another image.
|
|
* See pci_map_rom() for use of this flag. Before marking the device
|
|
* with IORESOURCE_ROM_SHADOW check if a vga_default_device is already set
|
|
* by either arch cde or vga-arbitration, if so only apply the fixup to this
|
|
* already determined primary video card.
|
|
*/
|
|
|
|
static void pci_fixup_video(struct pci_dev *pdev)
|
|
{
|
|
struct pci_dev *bridge;
|
|
struct pci_bus *bus;
|
|
u16 config;
|
|
|
|
/* Is VGA routed to us? */
|
|
bus = pdev->bus;
|
|
while (bus) {
|
|
bridge = bus->self;
|
|
|
|
/*
|
|
* From information provided by
|
|
* "David Miller" <davem@davemloft.net>
|
|
* The bridge control register is valid for PCI header
|
|
* type BRIDGE, or CARDBUS. Host to PCI controllers use
|
|
* PCI header type NORMAL.
|
|
*/
|
|
if (bridge && (pci_is_bridge(bridge))) {
|
|
pci_read_config_word(bridge, PCI_BRIDGE_CONTROL,
|
|
&config);
|
|
if (!(config & PCI_BRIDGE_CTL_VGA))
|
|
return;
|
|
}
|
|
bus = bus->parent;
|
|
}
|
|
if (!vga_default_device() || pdev == vga_default_device()) {
|
|
pci_read_config_word(pdev, PCI_COMMAND, &config);
|
|
if (config & (PCI_COMMAND_IO | PCI_COMMAND_MEMORY)) {
|
|
pdev->resource[PCI_ROM_RESOURCE].flags |= IORESOURCE_ROM_SHADOW;
|
|
dev_printk(KERN_DEBUG, &pdev->dev, "Boot video device\n");
|
|
vga_set_default_device(pdev);
|
|
}
|
|
}
|
|
}
|
|
DECLARE_PCI_FIXUP_CLASS_FINAL(PCI_ANY_ID, PCI_ANY_ID,
|
|
PCI_CLASS_DISPLAY_VGA, 8, pci_fixup_video);
|
|
|
|
|
|
static const struct dmi_system_id msi_k8t_dmi_table[] = {
|
|
{
|
|
.ident = "MSI-K8T-Neo2Fir",
|
|
.matches = {
|
|
DMI_MATCH(DMI_SYS_VENDOR, "MSI"),
|
|
DMI_MATCH(DMI_PRODUCT_NAME, "MS-6702E"),
|
|
},
|
|
},
|
|
{}
|
|
};
|
|
|
|
/*
|
|
* The AMD-Athlon64 board MSI "K8T Neo2-FIR" disables the onboard sound
|
|
* card if a PCI-soundcard is added.
|
|
*
|
|
* The BIOS only gives options "DISABLED" and "AUTO". This code sets
|
|
* the corresponding register-value to enable the soundcard.
|
|
*
|
|
* The soundcard is only enabled, if the mainborad is identified
|
|
* via DMI-tables and the soundcard is detected to be off.
|
|
*/
|
|
static void pci_fixup_msi_k8t_onboard_sound(struct pci_dev *dev)
|
|
{
|
|
unsigned char val;
|
|
if (!dmi_check_system(msi_k8t_dmi_table))
|
|
return; /* only applies to MSI K8T Neo2-FIR */
|
|
|
|
pci_read_config_byte(dev, 0x50, &val);
|
|
if (val & 0x40) {
|
|
pci_write_config_byte(dev, 0x50, val & (~0x40));
|
|
|
|
/* verify the change for status output */
|
|
pci_read_config_byte(dev, 0x50, &val);
|
|
if (val & 0x40)
|
|
dev_info(&dev->dev, "Detected MSI K8T Neo2-FIR; "
|
|
"can't enable onboard soundcard!\n");
|
|
else
|
|
dev_info(&dev->dev, "Detected MSI K8T Neo2-FIR; "
|
|
"enabled onboard soundcard\n");
|
|
}
|
|
}
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237,
|
|
pci_fixup_msi_k8t_onboard_sound);
|
|
DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237,
|
|
pci_fixup_msi_k8t_onboard_sound);
|
|
|
|
/*
|
|
* Some Toshiba laptops need extra code to enable their TI TSB43AB22/A.
|
|
*
|
|
* We pretend to bring them out of full D3 state, and restore the proper
|
|
* IRQ, PCI cache line size, and BARs, otherwise the device won't function
|
|
* properly. In some cases, the device will generate an interrupt on
|
|
* the wrong IRQ line, causing any devices sharing the line it's
|
|
* *supposed* to use to be disabled by the kernel's IRQ debug code.
|
|
*/
|
|
static u16 toshiba_line_size;
|
|
|
|
static const struct dmi_system_id toshiba_ohci1394_dmi_table[] = {
|
|
{
|
|
.ident = "Toshiba PS5 based laptop",
|
|
.matches = {
|
|
DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
|
|
DMI_MATCH(DMI_PRODUCT_VERSION, "PS5"),
|
|
},
|
|
},
|
|
{
|
|
.ident = "Toshiba PSM4 based laptop",
|
|
.matches = {
|
|
DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
|
|
DMI_MATCH(DMI_PRODUCT_VERSION, "PSM4"),
|
|
},
|
|
},
|
|
{
|
|
.ident = "Toshiba A40 based laptop",
|
|
.matches = {
|
|
DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
|
|
DMI_MATCH(DMI_PRODUCT_VERSION, "PSA40U"),
|
|
},
|
|
},
|
|
{ }
|
|
};
|
|
|
|
static void pci_pre_fixup_toshiba_ohci1394(struct pci_dev *dev)
|
|
{
|
|
if (!dmi_check_system(toshiba_ohci1394_dmi_table))
|
|
return; /* only applies to certain Toshibas (so far) */
|
|
|
|
dev->current_state = PCI_D3cold;
|
|
pci_read_config_word(dev, PCI_CACHE_LINE_SIZE, &toshiba_line_size);
|
|
}
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_TI, 0x8032,
|
|
pci_pre_fixup_toshiba_ohci1394);
|
|
|
|
static void pci_post_fixup_toshiba_ohci1394(struct pci_dev *dev)
|
|
{
|
|
if (!dmi_check_system(toshiba_ohci1394_dmi_table))
|
|
return; /* only applies to certain Toshibas (so far) */
|
|
|
|
/* Restore config space on Toshiba laptops */
|
|
pci_write_config_word(dev, PCI_CACHE_LINE_SIZE, toshiba_line_size);
|
|
pci_read_config_byte(dev, PCI_INTERRUPT_LINE, (u8 *)&dev->irq);
|
|
pci_write_config_dword(dev, PCI_BASE_ADDRESS_0,
|
|
pci_resource_start(dev, 0));
|
|
pci_write_config_dword(dev, PCI_BASE_ADDRESS_1,
|
|
pci_resource_start(dev, 1));
|
|
}
|
|
DECLARE_PCI_FIXUP_ENABLE(PCI_VENDOR_ID_TI, 0x8032,
|
|
pci_post_fixup_toshiba_ohci1394);
|
|
|
|
|
|
/*
|
|
* Prevent the BIOS trapping accesses to the Cyrix CS5530A video device
|
|
* configuration space.
|
|
*/
|
|
static void pci_early_fixup_cyrix_5530(struct pci_dev *dev)
|
|
{
|
|
u8 r;
|
|
/* clear 'F4 Video Configuration Trap' bit */
|
|
pci_read_config_byte(dev, 0x42, &r);
|
|
r &= 0xfd;
|
|
pci_write_config_byte(dev, 0x42, r);
|
|
}
|
|
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_CYRIX, PCI_DEVICE_ID_CYRIX_5530_LEGACY,
|
|
pci_early_fixup_cyrix_5530);
|
|
DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_CYRIX, PCI_DEVICE_ID_CYRIX_5530_LEGACY,
|
|
pci_early_fixup_cyrix_5530);
|
|
|
|
/*
|
|
* Siemens Nixdorf AG FSC Multiprocessor Interrupt Controller:
|
|
* prevent update of the BAR0, which doesn't look like a normal BAR.
|
|
*/
|
|
static void pci_siemens_interrupt_controller(struct pci_dev *dev)
|
|
{
|
|
dev->resource[0].flags |= IORESOURCE_PCI_FIXED;
|
|
}
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SIEMENS, 0x0015,
|
|
pci_siemens_interrupt_controller);
|
|
|
|
/*
|
|
* SB600: Disable BAR1 on device 14.0 to avoid HPET resources from
|
|
* confusing the PCI engine:
|
|
*/
|
|
static void sb600_disable_hpet_bar(struct pci_dev *dev)
|
|
{
|
|
u8 val;
|
|
|
|
/*
|
|
* The SB600 and SB700 both share the same device
|
|
* ID, but the PM register 0x55 does something different
|
|
* for the SB700, so make sure we are dealing with the
|
|
* SB600 before touching the bit:
|
|
*/
|
|
|
|
pci_read_config_byte(dev, 0x08, &val);
|
|
|
|
if (val < 0x2F) {
|
|
outb(0x55, 0xCD6);
|
|
val = inb(0xCD7);
|
|
|
|
/* Set bit 7 in PM register 0x55 */
|
|
outb(0x55, 0xCD6);
|
|
outb(val | 0x80, 0xCD7);
|
|
}
|
|
}
|
|
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_ATI, 0x4385, sb600_disable_hpet_bar);
|
|
|
|
#ifdef CONFIG_HPET_TIMER
|
|
static void sb600_hpet_quirk(struct pci_dev *dev)
|
|
{
|
|
struct resource *r = &dev->resource[1];
|
|
|
|
if (r->flags & IORESOURCE_MEM && r->start == hpet_address) {
|
|
r->flags |= IORESOURCE_PCI_FIXED;
|
|
dev_info(&dev->dev, "reg 0x14 contains HPET; making it immovable\n");
|
|
}
|
|
}
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATI, 0x4385, sb600_hpet_quirk);
|
|
#endif
|
|
|
|
/*
|
|
* Twinhead H12Y needs us to block out a region otherwise we map devices
|
|
* there and any access kills the box.
|
|
*
|
|
* See: https://bugzilla.kernel.org/show_bug.cgi?id=10231
|
|
*
|
|
* Match off the LPC and svid/sdid (older kernels lose the bridge subvendor)
|
|
*/
|
|
static void twinhead_reserve_killing_zone(struct pci_dev *dev)
|
|
{
|
|
if (dev->subsystem_vendor == 0x14FF && dev->subsystem_device == 0xA003) {
|
|
pr_info("Reserving memory on Twinhead H12Y\n");
|
|
request_mem_region(0xFFB00000, 0x100000, "twinhead");
|
|
}
|
|
}
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x27B9, twinhead_reserve_killing_zone);
|