| wdenk | 337f565 | 2004-10-28 00:09:35 +0000 | [diff] [blame] | 1 | /* |
| 2 | * (C) Copyright -2003 |
| 3 | * Wolfgang Denk, DENX Software Engineering, wd@denx.de. |
| 4 | * |
| 5 | * (C) Copyright 2001 |
| 6 | * Josh Huber <huber@mclx.com>, Mission Critical Linux, Inc. |
| 7 | * |
| 8 | * See file CREDITS for list of people who contributed to this |
| 9 | * project. |
| 10 | * |
| 11 | * This program is free software; you can redistribute it and/or |
| 12 | * modify it under the terms of the GNU General Public License as |
| 13 | * published by the Free Software Foundation; either version 2 of |
| 14 | * the License, or (at your option) any later version. |
| 15 | * |
| 16 | * This program is distributed in the hope that it will be useful, |
| 17 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 18 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 19 | * GNU General Public License for more details. |
| 20 | * |
| 21 | * You should have received a copy of the GNU General Public License |
| 22 | * along with this program; if not, write to the Free Software |
| 23 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
| 24 | * MA 02111-1307 USA |
| 25 | */ |
| 26 | |
| 27 | /* |
| 28 | * interrupts.c - just enough support for the decrementer/timer |
| 29 | */ |
| 30 | |
| 31 | #include <common.h> |
| 32 | #include <asm/processor.h> |
| 33 | #include <command.h> |
| 34 | |
| 35 | int interrupt_init_cpu (ulong * decrementer_count) |
| 36 | { |
| 37 | *decrementer_count = get_tbclk () / CFG_HZ; |
| 38 | |
| 39 | return (0); |
| 40 | } |
| 41 | |
| 42 | /****************************************************************************/ |
| 43 | |
| 44 | /* |
| 45 | * Handle external interrupts |
| 46 | */ |
| 47 | void external_interrupt (struct pt_regs *regs) |
| 48 | { |
| 49 | puts ("external_interrupt (oops!)\n"); |
| 50 | } |
| 51 | |
| 52 | void timer_interrupt_cpu (struct pt_regs *regs) |
| 53 | { |
| 54 | /* nothing to do here */ |
| 55 | return; |
| 56 | } |
| 57 | |
| 58 | /****************************************************************************/ |
| 59 | |
| 60 | /* |
| 61 | * Install and free a interrupt handler. |
| 62 | */ |
| 63 | |
| 64 | void irq_install_handler (int vec, interrupt_handler_t * handler, void *arg) |
| 65 | { |
| 66 | |
| 67 | } |
| 68 | |
| 69 | void irq_free_handler (int vec) |
| 70 | { |
| 71 | |
| 72 | } |
| 73 | |
| 74 | /****************************************************************************/ |
| 75 | |
| 76 | void |
| 77 | do_irqinfo (cmd_tbl_t * cmdtp, bd_t * bd, int flag, int argc, char *argv[]) |
| 78 | { |
| 79 | puts ("IRQ related functions are unimplemented currently.\n"); |
| 80 | } |