projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
1 | /***************************************************************************/ |
| 2 | ||
| 3 | /* | |
| 33a21263 | 4 | * linux/arch/m68knommu/platform/coldfire/vectors.c |
| 1da177e4 | 5 | * |
| 2502b667 | 6 | * Copyright (C) 1999-2007, Greg Ungerer <gerg@snapgear.com> |
| 1da177e4 LT |
7 | */ |
| 8 | ||
| 9 | /***************************************************************************/ | |
| 10 | ||
| 1da177e4 | 11 | #include <linux/kernel.h> |
| 1da177e4 | 12 | #include <linux/init.h> |
| 2502b667 | 13 | #include <linux/irq.h> |
| 1da177e4 LT |
14 | #include <asm/traps.h> |
| 15 | #include <asm/machdep.h> | |
| 16 | #include <asm/coldfire.h> | |
| 1da177e4 | 17 | #include <asm/mcfsim.h> |
| 1da177e4 LT |
18 | #include <asm/mcfwdebug.h> |
| 19 | ||
| 20 | /***************************************************************************/ | |
| 21 | ||
| 22 | #ifdef TRAP_DBG_INTERRUPT | |
| 23 | ||
| 24 | asmlinkage 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 | ||
| 36 | extern e_vector *_ramvec; | |
| 37 | ||
| 38 | void 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 */ | |
| 47 | asmlinkage void buserr(void); | |
| 48 | asmlinkage void trap(void); | |
| 49 | asmlinkage void system_call(void); | |
| 50 | asmlinkage void inthandler(void); | |
| 51 | ||
| 2502b667 | 52 | void __init init_vectors(void) |
| 1da177e4 LT |
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 | /***************************************************************************/ |