diff options
Diffstat (limited to 'drivers/pci')
| -rw-r--r-- | drivers/pci/quirks.c | 45 |
1 files changed, 37 insertions, 8 deletions
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index ff01bfb3cc2..9e23912c97a 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -533,6 +533,17 @@ static void __devinit quirk_piix4_acpi(struct pci_dev *dev) DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82371AB_3, quirk_piix4_acpi); DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443MX_3, quirk_piix4_acpi); +#define ICH_PMBASE 0x40 +#define ICH_ACPI_CNTL 0x44 +#define ICH4_ACPI_EN 0x10 +#define ICH6_ACPI_EN 0x80 +#define ICH4_GPIOBASE 0x58 +#define ICH4_GPIO_CNTL 0x5c +#define ICH4_GPIO_EN 0x10 +#define ICH6_GPIOBASE 0x48 +#define ICH6_GPIO_CNTL 0x4c +#define ICH6_GPIO_EN 0x10 + /* * ICH4, ICH4-M, ICH5, ICH5-M ACPI: Three IO regions pointed to by longwords at * 0x40 (128 bytes of ACPI, GPIO & TCO registers) @@ -541,12 +552,21 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443MX_3, qui static void __devinit quirk_ich4_lpc_acpi(struct pci_dev *dev) { u32 region; + u8 enable; - pci_read_config_dword(dev, 0x40, ®ion); - quirk_io_region(dev, region, 128, PCI_BRIDGE_RESOURCES, "ICH4 ACPI/GPIO/TCO"); + pci_read_config_byte(dev, ICH_ACPI_CNTL, &enable); + if (enable & ICH4_ACPI_EN) { + pci_read_config_dword(dev, ICH_PMBASE, ®ion); + quirk_io_region(dev, region, 128, PCI_BRIDGE_RESOURCES, + "ICH4 ACPI/GPIO/TCO"); + } - pci_read_config_dword(dev, 0x58, ®ion); - quirk_io_region(dev, region, 64, PCI_BRIDGE_RESOURCES+1, "ICH4 GPIO"); + pci_read_config_byte(dev, ICH4_GPIO_CNTL, &enable); + if (enable & ICH4_GPIO_EN) { + pci_read_config_dword(dev, ICH4_GPIOBASE, ®ion); + quirk_io_region(dev, region, 64, PCI_BRIDGE_RESOURCES + 1, + "ICH4 GPIO"); + } } DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801AA_0, quirk_ich4_lpc_acpi); DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801AB_0, quirk_ich4_lpc_acpi); @@ -562,12 +582,21 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB_1, qui static void __devinit ich6_lpc_acpi_gpio(struct pci_dev *dev) { u32 region; + u8 enable; - pci_read_config_dword(dev, 0x40, ®ion); - quirk_io_region(dev, region, 128, PCI_BRIDGE_RESOURCES, "ICH6 ACPI/GPIO/TCO"); + pci_read_config_byte(dev, ICH_ACPI_CNTL, &enable); + if (enable & ICH6_ACPI_EN) { + pci_read_config_dword(dev, ICH_PMBASE, ®ion); + quirk_io_region(dev, region, 128, PCI_BRIDGE_RESOURCES, + "ICH6 ACPI/GPIO/TCO"); + } - pci_read_config_dword(dev, 0x48, ®ion); - quirk_io_region(dev, region, 64, PCI_BRIDGE_RESOURCES+1, "ICH6 GPIO"); + pci_read_config_byte(dev, ICH6_GPIO_CNTL, &enable); + if (enable & ICH4_GPIO_EN) { + pci_read_config_dword(dev, ICH6_GPIOBASE, ®ion); + quirk_io_region(dev, region, 64, PCI_BRIDGE_RESOURCES + 1, + "ICH6 GPIO"); + } } static void __devinit ich6_lpc_generic_decode(struct pci_dev *dev, unsigned reg, const char *name, int dynsize) |