Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /***************************************************************************/ |
| 2 | |
| 3 | /* |
| 4 | * linux/arch/m68knommu/platform/5307/vectors.c |
| 5 | * |
Greg Ungerer | 2502b66 | 2007-07-19 01:49:12 -0700 | [diff] [blame^] | 6 | * Copyright (C) 1999-2007, Greg Ungerer <gerg@snapgear.com> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7 | */ |
| 8 | |
| 9 | /***************************************************************************/ |
| 10 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 11 | #include <linux/kernel.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 12 | #include <linux/init.h> |
Greg Ungerer | 2502b66 | 2007-07-19 01:49:12 -0700 | [diff] [blame^] | 13 | #include <linux/irq.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 14 | #include <asm/traps.h> |
| 15 | #include <asm/machdep.h> |
| 16 | #include <asm/coldfire.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 17 | #include <asm/mcfsim.h> |
| 18 | #include <asm/mcfdma.h> |
| 19 | #include <asm/mcfwdebug.h> |
| 20 | |
| 21 | /***************************************************************************/ |
| 22 | |
| 23 | #ifdef TRAP_DBG_INTERRUPT |
| 24 | |
| 25 | asmlinkage void dbginterrupt_c(struct frame *fp) |
| 26 | { |
| 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); |
| 30 | asm("halt"); |
| 31 | } |
| 32 | |
| 33 | #endif |
| 34 | |
| 35 | /***************************************************************************/ |
| 36 | |
| 37 | extern e_vector *_ramvec; |
| 38 | |
| 39 | void set_evector(int vecnum, void (*handler)(void)) |
| 40 | { |
| 41 | if (vecnum >= 0 && vecnum <= 255) |
| 42 | _ramvec[vecnum] = handler; |
| 43 | } |
| 44 | |
| 45 | /***************************************************************************/ |
| 46 | |
| 47 | /* Assembler routines */ |
| 48 | asmlinkage void buserr(void); |
| 49 | asmlinkage void trap(void); |
| 50 | asmlinkage void system_call(void); |
| 51 | asmlinkage void inthandler(void); |
| 52 | |
Greg Ungerer | 2502b66 | 2007-07-19 01:49:12 -0700 | [diff] [blame^] | 53 | void __init init_vectors(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 54 | { |
| 55 | int i; |
| 56 | |
| 57 | /* |
| 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. |
| 62 | */ |
| 63 | for (i = 3; (i <= 23); i++) |
| 64 | _ramvec[i] = trap; |
| 65 | for (i = 33; (i <= 63); i++) |
| 66 | _ramvec[i] = trap; |
| 67 | for (i = 24; (i <= 31); i++) |
| 68 | _ramvec[i] = inthandler; |
| 69 | for (i = 64; (i < 255); i++) |
| 70 | _ramvec[i] = inthandler; |
| 71 | _ramvec[255] = 0; |
| 72 | |
| 73 | _ramvec[2] = buserr; |
| 74 | _ramvec[32] = system_call; |
| 75 | |
| 76 | #ifdef TRAP_DBG_INTERRUPT |
| 77 | _ramvec[12] = dbginterrupt; |
| 78 | #endif |
| 79 | } |
| 80 | |
| 81 | /***************************************************************************/ |
| 82 | |
Greg Ungerer | 2502b66 | 2007-07-19 01:49:12 -0700 | [diff] [blame^] | 83 | void enable_vector(unsigned int irq) |
| 84 | { |
| 85 | /* Currently no action on ColdFire */ |
| 86 | } |
| 87 | |
| 88 | void disable_vector(unsigned int irq) |
| 89 | { |
| 90 | /* Currently no action on ColdFire */ |
| 91 | } |
| 92 | |
| 93 | void ack_vector(unsigned int irq) |
| 94 | { |
| 95 | /* Currently no action on ColdFire */ |
| 96 | } |
| 97 | |
| 98 | /***************************************************************************/ |
| 99 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 100 | void coldfire_reset(void) |
| 101 | { |
| 102 | HARD_RESET_NOW(); |
| 103 | } |
| 104 | |
| 105 | /***************************************************************************/ |