| // SPDX-License-Identifier: GPL-2.0 |
| /***************************************************************************/ |
| |
| /* |
| * vectors.c -- high level trap setup for ColdFire |
| * |
| * Copyright (C) 1999-2007, Greg Ungerer <[email protected]> |
| */ |
| |
| /***************************************************************************/ |
| |
| #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/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 |
| |
| /***************************************************************************/ |
| |
| /* Assembler routines */ |
| asmlinkage void buserr(void); |
| asmlinkage void trap(void); |
| asmlinkage void system_call(void); |
| asmlinkage void inthandler(void); |
| |
| void __init trap_init(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 |
| } |
| |
| /***************************************************************************/ |
