LXR uboot/arch/arm/lib/interrupts

   1/*
   2 * (C) Copyright 2013
   3 * David Feng <fenghua@phytium.com.cn>
   4 *
   5 * SPDX-License-Identifier:     GPL-2.0+
   6 */
   7
   8#include <common.h>
   9#include <linux/compiler.h>
  10
  11
  12int interrupt_init(void)
  13{
  14        return 0;
  15}
  16
  17void enable_interrupts(void)
  18{
  19        return;
  20}
  21
  22int disable_interrupts(void)
  23{
  24        return 0;
  25}
  26
  27void show_regs(struct pt_regs *regs)
  28{
  29        int i;
  30
  31        printf("ELR:     %lx\n", regs->elr);
  32        printf("LR:      %lx\n", regs->regs[30]);
  33        for (i = 0; i < 29; i += 2)
  34                printf("x%-2d: %016lx x%-2d: %016lx\n",
  35                       i, regs->regs[i], i+1, regs->regs[i+1]);
  36        printf("\n");
  37}
  38
  39/*
  40 * do_bad_sync handles the impossible case in the Synchronous Abort vector.
  41 */
  42void do_bad_sync(struct pt_regs *pt_regs, unsigned int esr)
  43{
  44        printf("Bad mode in \"Synchronous Abort\" handler, esr 0x%08x\n", esr);
  45        show_regs(pt_regs);
  46        panic("Resetting CPU ...\n");
  47}
  48
  49/*
  50 * do_bad_irq handles the impossible case in the Irq vector.
  51 */
  52void do_bad_irq(struct pt_regs *pt_regs, unsigned int esr)
  53{
  54        printf("Bad mode in \"Irq\" handler, esr 0x%08x\n", esr);
  55        show_regs(pt_regs);
  56        panic("Resetting CPU ...\n");
  57}
  58
  59/*
  60 * do_bad_fiq handles the impossible case in the Fiq vector.
  61 */
  62void do_bad_fiq(struct pt_regs *pt_regs, unsigned int esr)
  63{
  64        printf("Bad mode in \"Fiq\" handler, esr 0x%08x\n", esr);
  65        show_regs(pt_regs);
  66        panic("Resetting CPU ...\n");
  67}
  68
  69/*
  70 * do_bad_error handles the impossible case in the Error vector.
  71 */
  72void do_bad_error(struct pt_regs *pt_regs, unsigned int esr)
  73{
  74        printf("Bad mode in \"Error\" handler, esr 0x%08x\n", esr);
  75        show_regs(pt_regs);
  76        panic("Resetting CPU ...\n");
  77}
  78
  79/*
  80 * do_sync handles the Synchronous Abort exception.
  81 */
  82void do_sync(struct pt_regs *pt_regs, unsigned int esr)
  83{
  84        printf("\"Synchronous Abort\" handler, esr 0x%08x\n", esr);
  85        show_regs(pt_regs);
  86        panic("Resetting CPU ...\n");
  87}
  88
  89/*
  90 * do_irq handles the Irq exception.
  91 */
  92void do_irq(struct pt_regs *pt_regs, unsigned int esr)
  93{
  94        printf("\"Irq\" handler, esr 0x%08x\n", esr);
  95        show_regs(pt_regs);
  96        panic("Resetting CPU ...\n");
  97}
  98
  99/*
 100 * do_fiq handles the Fiq exception.
 101 */
 102void do_fiq(struct pt_regs *pt_regs, unsigned int esr)
 103{
 104        printf("\"Fiq\" handler, esr 0x%08x\n", esr);
 105        show_regs(pt_regs);
 106        panic("Resetting CPU ...\n");
 107}
 108
 109/*
 110 * do_error handles the Error exception.
 111 * Errors are more likely to be processor specific,
 112 * it is defined with weak attribute and can be redefined
 113 * in processor specific code.
 114 */
 115void __weak do_error(struct pt_regs *pt_regs, unsigned int esr)
 116{
 117        printf("\"Error\" handler, esr 0x%08x\n", esr);
 118        show_regs(pt_regs);
 119        panic("Resetting CPU ...\n");
 120}
 121