LXR uboot/arch/powerpc/cpu/mpc83xx/interrupts.c

   1// SPDX-License-Identifier: GPL-2.0+
   2/*
   3 * (C) Copyright 2000-2002
   4 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
   5 *
   6 * Copyright 2004 Freescale Semiconductor, Inc.
   7 */
   8
   9#include <common.h>
  10#include <command.h>
  11#include <irq_func.h>
  12#include <mpc83xx.h>
  13#include <asm/global_data.h>
  14#include <asm/processor.h>
  15#include <asm/ptrace.h>
  16
  17DECLARE_GLOBAL_DATA_PTR;
  18
  19struct irq_action {
  20        interrupt_handler_t *handler;
  21        void *arg;
  22        ulong count;
  23};
  24
  25void interrupt_init_cpu (unsigned *decrementer_count)
  26{
  27        volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR;
  28
  29        *decrementer_count = (gd->bus_clk / 4) / CONFIG_SYS_HZ;
  30
  31        /* Enable e300 time base */
  32
  33        immr->sysconf.spcr |= 0x00400000;
  34}
  35
  36
  37/*
  38 * Handle external interrupts
  39 */
  40
  41void external_interrupt(struct pt_regs *regs)
  42{
  43}
  44
  45
  46/*
  47 * Install and free an interrupt handler.
  48 */
  49
  50void
  51irq_install_handler(int irq, interrupt_handler_t * handler, void *arg)
  52{
  53}
  54
  55
  56void irq_free_handler(int irq)
  57{
  58}
  59
  60
  61void timer_interrupt_cpu (struct pt_regs *regs)
  62{
  63        /* nothing to do here */
  64        return;
  65}
  66
  67
  68#if defined(CONFIG_CMD_IRQ)
  69
  70/* ripped this out of ppc4xx/interrupts.c */
  71
  72/*
  73 * irqinfo - print information about PCI devices
  74 */
  75
  76void do_irqinfo(struct cmd_tbl *cmdtp, struct bd_info *bd, int flag, int argc,
  77                char *const argv[])
  78{
  79}
  80
  81#endif
  82