1 From: Olaf Dabrunz <od@suse.de>
3 Subject: Add quirk to disable boot interrupt generation on broadcom HT1000
5 Signed-off-by: Olaf Dabrunz <od@suse.de>
6 Signed-off-by: Stefan Assmann <sassmann@suse.de>
8 drivers/pci/quirks.c | 32 ++++++++++++++++++++++++++++++++
9 1 file changed, 32 insertions(+)
11 --- a/drivers/pci/quirks.c
12 +++ b/drivers/pci/quirks.c
13 @@ -1477,6 +1477,38 @@ static void quirk_disable_intel_boot_int
14 dev->vendor, dev->device);
16 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB_10, quirk_disable_intel_boot_interrupt);
19 + * disable boot interrupts on HT-1000
21 +#define BC_HT1000_FEATURE_REG 0x64
22 +#define BC_HT1000_PIC_REGS_ENABLE (1<<0)
23 +#define BC_HT1000_MAP_IDX 0xC00
24 +#define BC_HT1000_MAP_DATA 0xC01
26 +static void quirk_disable_broadcom_boot_interrupt(struct pci_dev *dev)
28 + u32 pci_config_dword;
34 + pci_read_config_dword(dev, BC_HT1000_FEATURE_REG, &pci_config_dword);
35 + pci_write_config_dword(dev, BC_HT1000_FEATURE_REG, pci_config_dword |
36 + BC_HT1000_PIC_REGS_ENABLE);
38 + for (irq = 0x10; irq < 0x10 + 32; irq++) {
39 + outb(irq, BC_HT1000_MAP_IDX);
40 + outb(0x00, BC_HT1000_MAP_DATA);
43 + pci_write_config_dword(dev, BC_HT1000_FEATURE_REG, pci_config_dword);
45 + printk(KERN_INFO "disabled boot interrupts on PCI device"
46 + "0x%04x:0x%04x\n", dev->vendor, dev->device);
48 +DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_HT1000SB, quirk_disable_broadcom_boot_interrupt);
49 #endif /* CONFIG_X86_IO_APIC */