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// SPDX-License-Identifier: GPL-2.0+
/*
* (C) Copyright 2003
* Josef Baumgartner <josef.baumgartner@telex.de>
*
* (C) Copyright 2000
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*/
#include <config.h>
#include <cpu_func.h>
#include <init.h>
#include <watchdog.h>
#include <command.h>
#include <asm/processor.h>
#include <asm/ptrace.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(;;);
}
static 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 */
}
int arch_initr_trap(void)
{
trap_init(CFG_SYS_SDRAM_BASE);
return 0;
}
void reset_cpu(void)
{
/* TODO: Refactor all the do_reset calls to be reset_cpu() instead */
do_reset(NULL, 0, 0, NULL);
}
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