arch/mips/ddb5xxx/common/irq.c

   1 /*
   2  * Copyright 2001 MontaVista Software Inc.
   3  * Author: jsun@mvista.com or jsun@junsun.net
   4  *
   5  * arch/mips/ddb5xxx/common/irq.c
   6  *     Common irq code for DDB boards.  This really should belong
   7  *      arch/mips/kernel/irq.c.  Need to talk to Ralf.
   8  *
   9  * This program is free software; you can redistribute  it and/or modify it
  10  * under  the terms of  the GNU General  Public License as published by the
  11  * Free Software Foundation;  either version 2 of the  License, or (at your
  12  * option) any later version.
  13  */
  14 #include <linux/config.h>
  15 #include <linux/init.h>
  16 #include <asm/irq.h>
  17
  18 void (*irq_setup)(void);
  19
  20 #ifdef CONFIG_KGDB
  21 static int kgdb_flag = 1;
  22 static int __init nokgdb(char *str)
  23 {
  24         kgdb_flag = 0;
  25         return 1;
  26 }
  27 __setup("nokgdb", nokgdb);
  28 #endif
  29
  30 void __init init_IRQ(void)
  31 {
  32 #ifdef CONFIG_KGDB
  33         extern void breakpoint(void);
  34         extern void set_debug_traps(void);
  35
  36         if (kgdb_flag) {
  37                 printk("Wait for gdb client connection ...\n");
  38                 set_debug_traps();
  39                 breakpoint();
  40         }
  41 #endif
  42         /* set up default irq controller */
  43         init_generic_irq();
  44
  45         /* invoke board-specific irq setup */
  46         irq_setup();
  47 }