arch/i386/mach-voyager/setup.c

   1 /*
   2  *      Machine specific setup for generic
   3  */
   4
   5 #include <linux/config.h>
   6 #include <linux/init.h>
   7 #include <linux/irq.h>
   8 #include <linux/interrupt.h>
   9 #include <asm/acpi.h>
  10 #include <asm/arch_hooks.h>
  11
  12 void __init pre_intr_init_hook(void)
  13 {
  14         init_ISA_irqs();
  15 }
  16
  17 /*
  18  * IRQ2 is cascade interrupt to second interrupt controller
  19  */
  20 static struct irqaction irq2 = { no_action, 0, CPU_MASK_NONE, "cascade", NULL, NULL};
  21
  22 void __init intr_init_hook(void)
  23 {
  24 #ifdef CONFIG_SMP
  25         smp_intr_init();
  26 #endif
  27
  28         if (!acpi_ioapic)
  29                 setup_irq(2, &irq2);
  30 }
  31
  32 void __init pre_setup_arch_hook(void)
  33 {
  34         /* Voyagers run their CPUs from independent clocks, so disable
  35          * the TSC code because we can't sync them */
  36         tsc_disable = 1;
  37 }
  38
  39 void __init trap_init_hook(void)
  40 {
  41 }
  42
  43 static struct irqaction irq0  = { timer_interrupt, SA_INTERRUPT, CPU_MASK_NONE, "timer", NULL, NULL};
  44
  45 void __init time_init_hook(void)
  46 {
  47         setup_irq(0, &irq0);
  48 }