/* * (C) Copyright -2003 * Wolfgang Denk, DENX Software Engineering, wd@denx.de. * * (C) Copyright 2001 * Josh Huber <huber@mclx.com>, Mission Critical Linux, Inc. * * See file CREDITS for list of people who contributed to this * project. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License as * published by the Free Software Foundation; either version 2 of * the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, * MA 02111-1307 USA */ /* * interrupts.c - just enough support for the decrementer/timer */ #include <common.h> #include <asm/processor.h> #include <command.h> int interrupt_init_cpu (ulong * decrementer_count) { *decrementer_count = get_tbclk () / CONFIG_SYS_HZ; return (0); } /****************************************************************************/ /* * Handle external interrupts */ void external_interrupt (struct pt_regs *regs) { puts ("external_interrupt (oops!)\n"); } void timer_interrupt_cpu (struct pt_regs *regs) { /* nothing to do here */ return; } /****************************************************************************/ /* * Install and free a interrupt handler. */ void irq_install_handler (int vec, interrupt_handler_t * handler, void *arg) { } void irq_free_handler (int vec) { } /****************************************************************************/ void do_irqinfo (cmd_tbl_t * cmdtp, bd_t * bd, int flag, int argc, char *argv[]) { puts ("IRQ related functions are unimplemented currently.\n"); }