1 /*
2  * Copyright (C) 2000 RidgeRun, Inc.
3  * Author: RidgeRun, Inc.
4  *   glonnon@ridgerun.com, skranz@ridgerun.com, stevej@ridgerun.com
5  *
6  * Copyright 2001 MontaVista Software Inc.
7  * Author: Jun Sun, jsun@mvista.com or jsun@junsun.net
8  * Copyright (C) 2000, 2001 Ralf Baechle (ralf@gnu.org)
9  *
10  *  This program is free software; you can redistribute  it and/or modify it
11  *  under  the terms of  the GNU General  Public License as published by the
12  *  Free Software Foundation;  either version 2 of the  License, or (at your
13  *  option) any later version.
14  *
15  *  THIS  SOFTWARE  IS PROVIDED   ``AS  IS'' AND   ANY  EXPRESS OR IMPLIED
16  *  WARRANTIES,   INCLUDING, BUT NOT  LIMITED  TO, THE IMPLIED WARRANTIES OF
17  *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN
18  *  NO  EVENT  SHALL   THE AUTHOR  BE    LIABLE FOR ANY   DIRECT, INDIRECT,
19  *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20  *  NOT LIMITED   TO, PROCUREMENT OF  SUBSTITUTE GOODS  OR SERVICES; LOSS OF
21  *  USE, DATA,  OR PROFITS; OR  BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
22  *  ANY THEORY OF LIABILITY, WHETHER IN  CONTRACT, STRICT LIABILITY, OR TORT
23  *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24  *  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25  *
26  *  You should have received a copy of the  GNU General Public License along
27  *  with this program; if not, write  to the Free Software Foundation, Inc.,
28  *  675 Mass Ave, Cambridge, MA 02139, USA.
29  *
30  */
31 #include <linux/errno.h>
32 #include <linux/init.h>
33 #include <linux/kernel_stat.h>
34 #include <linux/module.h>
35 #include <linux/signal.h>
36 #include <linux/sched.h>
37 #include <linux/types.h>
38 #include <linux/interrupt.h>
39 #include <linux/ioport.h>
40 #include <linux/timex.h>
41 #include <linux/slab.h>
42 #include <linux/random.h>
43 #include <asm/bitops.h>
44 #include <asm/bootinfo.h>
45 #include <asm/io.h>
46 #include <asm/irq.h>
47 #include <asm/mipsregs.h>
48 #include <asm/system.h>
49 
50 extern asmlinkage void ocelot_handle_int(void);
51 extern void gt64240_irq_init(void);
52 
init_IRQ(void)53 void __init init_IRQ(void)
54 {
55 	int i;
56 
57 	/*
58 	 * Clear all of the interrupts while we change the able around a bit.
59 	 * int-handler is not on bootstrap
60 	 */
61 	clear_c0_status(ST0_IM | ST0_BEV);
62 	__cli();
63 
64 	/* Sets the first-level interrupt dispatcher. */
65 	set_except_vector(0, ocelot_handle_int);
66 	init_generic_irq();
67 	mips_cpu_irq_init(0);
68 	rm7k_cpu_irq_init(8);
69 	gt64240_irq_init();
70 
71 #ifdef CONFIG_KGDB
72 	printk("start kgdb ...\n");
73 	set_debug_traps();
74 	breakpoint();	/* you may move this line to whereever you want :-) */
75 #endif
76 #ifdef CONFIG_GDB_CONSOLE
77 	register_gdb_console();
78 #endif
79 }
80