arch/mips/bmips/irq.c

   1 /*
   2  * This program is free software; you can redistribute it and/or modify it
   3  * under the terms of the GNU General Public License version 2 as published
   4  * by the Free Software Foundation.
   5  *
   6  * Copyright (C) 2014 Broadcom Corporation
   7  * Author: Kevin Cernekee <cernekee@gmail.com>
   8  */
   9
  10 #include <linux/of.h>
  11 #include <linux/irqchip.h>
  12
  13 #include <asm/bmips.h>
  14 #include <asm/irq.h>
  15 #include <asm/irq_cpu.h>
  16 #include <asm/time.h>
  17
  18 unsigned int get_c0_compare_int(void)
  19 {
  20         return CP0_LEGACY_COMPARE_IRQ;
  21 }
  22
  23 void __init arch_init_irq(void)
  24 {
  25         struct device_node *dn;
  26
  27         /* Only the STB (bcm7038) controller supports SMP IRQ affinity */
  28         dn = of_find_compatible_node(NULL, NULL, "brcm,bcm7038-l1-intc");
  29         if (dn)
  30                 of_node_put(dn);
  31         else
  32                 bmips_tp1_irqs = 0;
  33
  34         irqchip_init();
  35 }
  36
  37 OF_DECLARE_2(irqchip, mips_cpu_intc, "mti,cpu-interrupt-controller",
  38              mips_cpu_irq_of_init);