1 /***************************************************************************/
4 * linux/arch/m68knommu/platform/5307/vectors.c
6 * Copyright (C) 1999-2007, Greg Ungerer <gerg@snapgear.com>
9 /***************************************************************************/
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/mcfdma.h>
19 #include <asm/mcfwdebug.h>
21 /***************************************************************************/
23 #ifdef TRAP_DBG_INTERRUPT
25 asmlinkage void dbginterrupt_c(struct frame *fp)
27 extern void dump(struct pt_regs *fp);
28 printk(KERN_DEBUG "%s(%d): BUS ERROR TRAP\n", __FILE__, __LINE__);
29 dump((struct pt_regs *) fp);
35 /***************************************************************************/
37 extern e_vector *_ramvec;
39 void set_evector(int vecnum, void (*handler)(void))
41 if (vecnum >= 0 && vecnum <= 255)
42 _ramvec[vecnum] = handler;
45 /***************************************************************************/
47 /* Assembler routines */
48 asmlinkage void buserr(void);
49 asmlinkage void trap(void);
50 asmlinkage void system_call(void);
51 asmlinkage void inthandler(void);
53 void __init init_vectors(void)
58 * There is a common trap handler and common interrupt
59 * handler that handle almost every vector. We treat
60 * the system call and bus error special, they get their
61 * own first level handlers.
63 for (i = 3; (i <= 23); i++)
65 for (i = 33; (i <= 63); i++)
67 for (i = 24; (i <= 31); i++)
68 _ramvec[i] = inthandler;
69 for (i = 64; (i < 255); i++)
70 _ramvec[i] = inthandler;
74 _ramvec[32] = system_call;
76 #ifdef TRAP_DBG_INTERRUPT
77 _ramvec[12] = dbginterrupt;
81 /***************************************************************************/
83 void enable_vector(unsigned int irq)
85 /* Currently no action on ColdFire */
88 void disable_vector(unsigned int irq)
90 /* Currently no action on ColdFire */
93 void ack_vector(unsigned int irq)
95 /* Currently no action on ColdFire */
98 /***************************************************************************/
100 void coldfire_reset(void)
105 /***************************************************************************/