blob: 3a7cc524ecd34601a6ba389bf445149ab690ee3f [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/***************************************************************************/
2
3/*
Greg Ungerer33a212632009-04-30 16:22:24 +10004 * linux/arch/m68knommu/platform/coldfire/vectors.c
Linus Torvalds1da177e2005-04-16 15:20:36 -07005 *
Greg Ungerer2502b662007-07-19 01:49:12 -07006 * Copyright (C) 1999-2007, Greg Ungerer <gerg@snapgear.com>
Linus Torvalds1da177e2005-04-16 15:20:36 -07007 */
8
9/***************************************************************************/
10
Linus Torvalds1da177e2005-04-16 15:20:36 -070011#include <linux/kernel.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070012#include <linux/init.h>
Greg Ungerer2502b662007-07-19 01:49:12 -070013#include <linux/irq.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070014#include <asm/traps.h>
15#include <asm/machdep.h>
16#include <asm/coldfire.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070017#include <asm/mcfsim.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070018#include <asm/mcfwdebug.h>
19
20/***************************************************************************/
21
22#ifdef TRAP_DBG_INTERRUPT
23
24asmlinkage void dbginterrupt_c(struct frame *fp)
25{
26 extern void dump(struct pt_regs *fp);
27 printk(KERN_DEBUG "%s(%d): BUS ERROR TRAP\n", __FILE__, __LINE__);
28 dump((struct pt_regs *) fp);
29 asm("halt");
30}
31
32#endif
33
34/***************************************************************************/
35
36extern e_vector *_ramvec;
37
Linus Torvalds1da177e2005-04-16 15:20:36 -070038/* Assembler routines */
39asmlinkage void buserr(void);
40asmlinkage void trap(void);
41asmlinkage void system_call(void);
42asmlinkage void inthandler(void);
43
Greg Ungerer622e9472011-06-23 15:52:25 +100044void __init trap_init(void)
Linus Torvalds1da177e2005-04-16 15:20:36 -070045{
46 int i;
47
48 /*
49 * There is a common trap handler and common interrupt
50 * handler that handle almost every vector. We treat
51 * the system call and bus error special, they get their
52 * own first level handlers.
53 */
54 for (i = 3; (i <= 23); i++)
55 _ramvec[i] = trap;
56 for (i = 33; (i <= 63); i++)
57 _ramvec[i] = trap;
58 for (i = 24; (i <= 31); i++)
59 _ramvec[i] = inthandler;
60 for (i = 64; (i < 255); i++)
61 _ramvec[i] = inthandler;
62 _ramvec[255] = 0;
63
64 _ramvec[2] = buserr;
65 _ramvec[32] = system_call;
66
67#ifdef TRAP_DBG_INTERRUPT
68 _ramvec[12] = dbginterrupt;
69#endif
70}
71
72/***************************************************************************/