aboutsummaryrefslogtreecommitdiffstats
path: root/arch/m68k/platform/coldfire/vectors.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/m68k/platform/coldfire/vectors.c')
-rw-r--r--arch/m68k/platform/coldfire/vectors.c80
1 files changed, 80 insertions, 0 deletions
diff --git a/arch/m68k/platform/coldfire/vectors.c b/arch/m68k/platform/coldfire/vectors.c
new file mode 100644
index 00000000000..a21d3f870b7
--- /dev/null
+++ b/arch/m68k/platform/coldfire/vectors.c
@@ -0,0 +1,80 @@
1/***************************************************************************/
2
3/*
4 * linux/arch/m68knommu/platform/coldfire/vectors.c
5 *
6 * Copyright (C) 1999-2007, Greg Ungerer <gerg@snapgear.com>
7 */
8
9/***************************************************************************/
10
11#include <linux/kernel.h>
12#include <linux/init.h>
13#include <linux/irq.h>
14#include <asm/traps.h>
15#include <asm/machdep.h>
16#include <asm/coldfire.h>
17#include <asm/mcfsim.h>
18#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
38void set_evector(int vecnum, void (*handler)(void))
39{
40 if (vecnum >= 0 && vecnum <= 255)
41 _ramvec[vecnum] = handler;
42}
43
44/***************************************************************************/
45
46/* Assembler routines */
47asmlinkage void buserr(void);
48asmlinkage void trap(void);
49asmlinkage void system_call(void);
50asmlinkage void inthandler(void);
51
52void __init init_vectors(void)
53{
54 int i;
55
56 /*
57 * There is a common trap handler and common interrupt
58 * handler that handle almost every vector. We treat
59 * the system call and bus error special, they get their
60 * own first level handlers.
61 */
62 for (i = 3; (i <= 23); i++)
63 _ramvec[i] = trap;
64 for (i = 33; (i <= 63); i++)
65 _ramvec[i] = trap;
66 for (i = 24; (i <= 31); i++)
67 _ramvec[i] = inthandler;
68 for (i = 64; (i < 255); i++)
69 _ramvec[i] = inthandler;
70 _ramvec[255] = 0;
71
72 _ramvec[2] = buserr;
73 _ramvec[32] = system_call;
74
75#ifdef TRAP_DBG_INTERRUPT
76 _ramvec[12] = dbginterrupt;
77#endif
78}
79
80/***************************************************************************/