3 * Josef Baumgartner <josef.baumgartner@telex.de>
6 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
8 * SPDX-License-Identifier: GPL-2.0+
14 #include <asm/processor.h>
17 extern void _exc_handler(void);
18 extern void _int_handler(void);
20 static void show_frame(struct pt_regs *fp)
22 printf ("Vector Number: %d Format: %02x Fault Status: %01x\n\n", (fp->vector & 0x3fc) >> 2,
23 fp->format, (fp->vector & 0x3) | ((fp->vector & 0xc00) >> 8));
24 printf ("PC: %08lx SR: %08lx SP: %08lx\n", fp->pc, (long) fp->sr, (long) fp);
25 printf ("D0: %08lx D1: %08lx D2: %08lx D3: %08lx\n",
26 fp->d0, fp->d1, fp->d2, fp->d3);
27 printf ("D4: %08lx D5: %08lx D6: %08lx D7: %08lx\n",
28 fp->d4, fp->d5, fp->d6, fp->d7);
29 printf ("A0: %08lx A1: %08lx A2: %08lx A3: %08lx\n",
30 fp->a0, fp->a1, fp->a2, fp->a3);
31 printf ("A4: %08lx A5: %08lx A6: %08lx\n",
32 fp->a4, fp->a5, fp->a6);
35 void exc_handler(struct pt_regs *fp) {
36 printf("\n\n*** Unexpected exception ***\n");
38 printf("\n*** Please Reset Board! ***\n");
42 void trap_init(ulong value) {
43 unsigned long *vec = (ulong *)value;
46 for(i = 2; i < 25; i++) {
47 vec[i] = (unsigned long)_exc_handler;
49 for(i = 25; i < 32; i++) {
50 vec[i] = (unsigned long)_int_handler;
52 for(i = 32; i < 64; i++) {
53 vec[i] = (unsigned long)_exc_handler;
55 for(i = 64; i < 256; i++) {
56 vec[i] = (unsigned long)_int_handler;
59 setvbr(value); /* set vector base register to new table */