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/***************************************************************************/
/*
* linux/arch/m68knommu/platform/5307/vectors.c
*
* Copyright (C) 1999-2007, Greg Ungerer <gerg@snapgear.com>
*/
/***************************************************************************/
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/irq.h>
#include <asm/traps.h>
#include <asm/machdep.h>
#include <asm/coldfire.h>
#include <asm/mcfsim.h>
#include <asm/mcfdma.h>
#include <asm/mcfwdebug.h>
/***************************************************************************/
#ifdef TRAP_DBG_INTERRUPT
asmlinkage void dbginterrupt_c(struct frame *fp)
{
extern void dump(struct pt_regs *fp);
printk(KERN_DEBUG "%s(%d): BUS ERROR TRAP\n", __FILE__, __LINE__);
dump((struct pt_regs *) fp);
asm("halt");
}
#endif
/***************************************************************************/
extern e_vector *_ramvec;
void set_evector(int vecnum, void (*handler)(void))
{
if (vecnum >= 0 && vecnum <= 255)
_ramvec[vecnum] = handler;
}
/***************************************************************************/
/* Assembler routines */
asmlinkage void buserr(void);
asmlinkage void trap(void);
asmlinkage void system_call(void);
asmlinkage void inthandler(void);
void __init init_vectors(void)
{
int i;
/*
* There is a common trap handler and common interrupt
* handler that handle almost every vector. We treat
* the system call and bus error special, they get their
* own first level handlers.
*/
for (i = 3; (i <= 23); i++)
_ramvec[i] = trap;
for (i = 33; (i <= 63); i++)
_ramvec[i] = trap;
for (i = 24; (i <= 31); i++)
_ramvec[i] = inthandler;
for (i = 64; (i < 255); i++)
_ramvec[i] = inthandler;
_ramvec[255] = 0;
_ramvec[2] = buserr;
_ramvec[32] = system_call;
#ifdef TRAP_DBG_INTERRUPT
_ramvec[12] = dbginterrupt;
#endif
}
/***************************************************************************/
void enable_vector(unsigned int irq)
{
/* Currently no action on ColdFire */
}
void disable_vector(unsigned int irq)
{
/* Currently no action on ColdFire */
}
void ack_vector(unsigned int irq)
{
/* Currently no action on ColdFire */
}
/***************************************************************************/
void coldfire_reset(void)
{
HARD_RESET_NOW();
}
/***************************************************************************/
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