Greg Kroah-Hartman | b244131 | 2017-11-01 15:07:57 +0100 | [diff] [blame] | 1 | // SPDX-License-Identifier: GPL-2.0 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2 | /***************************************************************************/ |
| 3 | |
| 4 | /* |
Greg Ungerer | ece9ae6 | 2014-08-19 11:55:24 +1000 | [diff] [blame] | 5 | * vectors.c -- high level trap setup for ColdFire |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6 | * |
Greg Ungerer | 2502b667 | 2007-07-19 01:49:12 -0700 | [diff] [blame] | 7 | * Copyright (C) 1999-2007, Greg Ungerer <gerg@snapgear.com> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 8 | */ |
| 9 | |
| 10 | /***************************************************************************/ |
| 11 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 12 | #include <linux/kernel.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 13 | #include <linux/init.h> |
Greg Ungerer | 2502b667 | 2007-07-19 01:49:12 -0700 | [diff] [blame] | 14 | #include <linux/irq.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 15 | #include <asm/traps.h> |
| 16 | #include <asm/machdep.h> |
| 17 | #include <asm/coldfire.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 18 | #include <asm/mcfsim.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 37 | /* Assembler routines */ |
| 38 | asmlinkage void buserr(void); |
| 39 | asmlinkage void trap(void); |
| 40 | asmlinkage void system_call(void); |
| 41 | asmlinkage void inthandler(void); |
| 42 | |
Greg Ungerer | 622e947 | 2011-06-23 15:52:25 +1000 | [diff] [blame] | 43 | void __init trap_init(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 44 | { |
| 45 | int i; |
| 46 | |
| 47 | /* |
| 48 | * There is a common trap handler and common interrupt |
| 49 | * handler that handle almost every vector. We treat |
| 50 | * the system call and bus error special, they get their |
| 51 | * own first level handlers. |
| 52 | */ |
| 53 | for (i = 3; (i <= 23); i++) |
| 54 | _ramvec[i] = trap; |
| 55 | for (i = 33; (i <= 63); i++) |
| 56 | _ramvec[i] = trap; |
| 57 | for (i = 24; (i <= 31); i++) |
| 58 | _ramvec[i] = inthandler; |
| 59 | for (i = 64; (i < 255); i++) |
| 60 | _ramvec[i] = inthandler; |
| 61 | _ramvec[255] = 0; |
| 62 | |
| 63 | _ramvec[2] = buserr; |
| 64 | _ramvec[32] = system_call; |
| 65 | |
| 66 | #ifdef TRAP_DBG_INTERRUPT |
| 67 | _ramvec[12] = dbginterrupt; |
| 68 | #endif |
| 69 | } |
| 70 | |
| 71 | /***************************************************************************/ |