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    Subject[PATCH 1/3] Add quirk to disable boot interrupt generation on broadcom HT1000
    Date
    From: Olaf Dabrunz <od@suse.de>

    Signed-off-by: Olaf Dabrunz <od@suse.de>
    Signed-off-by: Stefan Assmann <sassmann@suse.de>
    ---
    drivers/pci/quirks.c | 32 ++++++++++++++++++++++++++++++++
    1 files changed, 32 insertions(+), 0 deletions(-)

    diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
    index 292cf26..b3ec3f8 100644
    --- a/drivers/pci/quirks.c
    +++ b/drivers/pci/quirks.c
    @@ -1417,6 +1417,38 @@ static void quirk_disable_intel_boot_interrupt(struct pci_dev *dev)
    dev->vendor, dev->device);
    }
    DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB_10, quirk_disable_intel_boot_interrupt);
    +
    +/*
    + * disable boot interrupts on HT-1000
    + */
    +#define BC_HT1000_FEATURE_REG 0x64
    +#define BC_HT1000_PIC_REGS_ENABLE (1<<0)
    +#define BC_HT1000_MAP_IDX 0xC00
    +#define BC_HT1000_MAP_DATA 0xC01
    +
    +static void quirk_disable_broadcom_boot_interrupt(struct pci_dev *dev)
    +{
    + u32 pci_config_dword;
    + u8 irq;
    +
    + if (noioapicquirk)
    + return;
    +
    + pci_read_config_dword(dev, BC_HT1000_FEATURE_REG, &pci_config_dword);
    + pci_write_config_dword(dev, BC_HT1000_FEATURE_REG, pci_config_dword |
    + BC_HT1000_PIC_REGS_ENABLE);
    +
    + for (irq = 0x10; irq < 0x10 + 32; irq++) {
    + outb(irq, BC_HT1000_MAP_IDX);
    + outb(0x00, BC_HT1000_MAP_DATA);
    + }
    +
    + pci_write_config_dword(dev, BC_HT1000_FEATURE_REG, pci_config_dword);
    +
    + printk(KERN_INFO "disabled boot interrupts on PCI device"
    + "0x%04x:0x%04x\n", dev->vendor, dev->device);
    +}
    +DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_HT1000SB, quirk_disable_broadcom_boot_interrupt);
    #endif /* CONFIG_X86_IO_APIC */

    /*
    --
    1.5.2.4


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