diff options
Diffstat (limited to 'arch/x86/mach-default/setup.c')
| -rw-r--r-- | arch/x86/mach-default/setup.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/arch/x86/mach-default/setup.c b/arch/x86/mach-default/setup.c index df167f26562..a265a7c6319 100644 --- a/arch/x86/mach-default/setup.c +++ b/arch/x86/mach-default/setup.c @@ -38,6 +38,15 @@ void __init pre_intr_init_hook(void) init_ISA_irqs(); } +/* + * IRQ2 is cascade interrupt to second interrupt controller + */ +static struct irqaction irq2 = { + .handler = no_action, + .mask = CPU_MASK_NONE, + .name = "cascade", +}; + /** * intr_init_hook - post gate setup interrupt initialisation * @@ -53,6 +62,9 @@ void __init intr_init_hook(void) if (x86_quirks->arch_intr_init()) return; } + if (!acpi_ioapic) + setup_irq(2, &irq2); + } /** |