cpu/mpc512x/interrupts.c

   1 /*
   2  * (C) Copyright 2000-2007
   3  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
   4  *
   5  * Copyright 2004 Freescale Semiconductor, Inc.
   6  *
   7  * See file CREDITS for list of people who contributed to this
   8  * project.
   9  *
  10  * This program is free software; you can redistribute it and/or
  11  * modify it under the terms of the GNU General Public License as
  12  * published by the Free Software Foundation; either version 2 of
  13  * the License, or (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; if not, write to the Free Software
  22  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  23  * MA 02111-1307 USA
  24  *
  25  * Derived from the MPC83xx code.
  26  */
  27
  28 #include <common.h>
  29
  30 DECLARE_GLOBAL_DATA_PTR;
  31
  32 struct irq_action {
  33         interrupt_handler_t *handler;
  34         void *arg;
  35         ulong count;
  36 };
  37
  38 int interrupt_init_cpu (unsigned *decrementer_count)
  39 {
  40         *decrementer_count = get_tbclk () / CFG_HZ;
  41
  42         return 0;
  43 }
  44
  45 /*
  46  * Install and free an interrupt handler.
  47  */
  48 void
  49 irq_install_handler (int irq, interrupt_handler_t * handler, void *arg)
  50 {
  51 }
  52
  53 void irq_free_handler (int irq)
  54 {
  55 }
  56
  57 void timer_interrupt_cpu (struct pt_regs *regs)
  58 {
  59         /* nothing to do here */
  60         return;
  61 }