/* * (C) Copyright 2003 * Josef Baumgartner <josef.baumgartner@telex.de> * * (C) Copyright 2000 * Wolfgang Denk, DENX Software Engineering, wd@denx.de. * * See file CREDITS for list of people who contributed to this * project. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License as * published by the Free Software Foundation; either version 2 of * the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, * MA 02111-1307 USA */ #include <common.h> #include <watchdog.h> #include <command.h> #include <asm/processor.h> extern void _exc_handler(void); extern void _int_handler(void); static void show_frame(struct pt_regs *fp) { printf ("Vector Number: %d Format: %02x Fault Status: %01x\n\n", (fp->vector & 0x3fc) >> 2, fp->format, (fp->vector & 0x3) | ((fp->vector & 0xc00) >> 8)); printf ("PC: %08lx SR: %08lx SP: %08lx\n", fp->pc, (long) fp->sr, (long) fp); printf ("D0: %08lx D1: %08lx D2: %08lx D3: %08lx\n", fp->d0, fp->d1, fp->d2, fp->d3); printf ("D4: %08lx D5: %08lx D6: %08lx D7: %08lx\n", fp->d4, fp->d5, fp->d6, fp->d7); printf ("A0: %08lx A1: %08lx A2: %08lx A3: %08lx\n", fp->a0, fp->a1, fp->a2, fp->a3); printf ("A4: %08lx A5: %08lx A6: %08lx\n", fp->a4, fp->a5, fp->a6); } void exc_handler(struct pt_regs *fp) { printf("\n\n*** Unexpected exception ***\n"); show_frame (fp); printf("\n*** Please Reset Board! ***\n"); for(;;); } void trap_init(ulong value) { unsigned long *vec = (ulong *)value; int i; for(i = 2; i < 25; i++) { vec[i] = (unsigned long)_exc_handler; } for(i = 25; i < 32; i++) { vec[i] = (unsigned long)_int_handler; } for(i = 32; i < 64; i++) { vec[i] = (unsigned long)_exc_handler; } for(i = 64; i < 256; i++) { vec[i] = (unsigned long)_int_handler; } setvbr(value); /* set vector base register to new table */ }