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Eran Libertyf046ccd2005-07-28 10:08:46 -05001/*
2 * (C) Copyright 2000-2002
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
Eran Libertyf046ccd2005-07-28 10:08:46 -050024 */
25
26#include <common.h>
27#include <command.h>
28#include <mpc83xx.h>
29#include <asm/processor.h>
30
Wolfgang Denkd87080b2006-03-31 18:32:53 +020031DECLARE_GLOBAL_DATA_PTR;
32
Eran Libertyf046ccd2005-07-28 10:08:46 -050033struct irq_action {
34 interrupt_handler_t *handler;
35 void *arg;
36 ulong count;
37};
38
39int interrupt_init_cpu (unsigned *decrementer_count)
40{
Timur Tabid239d742006-11-03 12:00:28 -060041 volatile immap_t *immr = (immap_t *) CFG_IMMR;
Kumar Galace574ff2006-01-11 11:19:12 -060042
43 *decrementer_count = (gd->bus_clk / 4) / CFG_HZ;
44
45 /* Enable e300 time base */
46
47 immr->sysconf.spcr |= 0x00400000;
48
Eran Libertyf046ccd2005-07-28 10:08:46 -050049 return 0;
50}
51
52
53/*
54 * Handle external interrupts
55 */
56
57void external_interrupt (struct pt_regs *regs)
58{
59}
60
61
62/*
63 * Install and free an interrupt handler.
64 */
65
66void
67irq_install_handler (int irq, interrupt_handler_t * handler, void *arg)
68{
69}
70
71
72void irq_free_handler (int irq)
73{
74}
75
76
77void timer_interrupt_cpu (struct pt_regs *regs)
78{
79 /* nothing to do here */
80 return;
81}
82
83
Jon Loeliger44312832007-07-09 19:06:00 -050084#if defined(CONFIG_CMD_IRQ)
Eran Libertyf046ccd2005-07-28 10:08:46 -050085
86/* ripped this out of ppc4xx/interrupts.c */
87
88/*
89 * irqinfo - print information about PCI devices
90 */
91
92void
93do_irqinfo(cmd_tbl_t *cmdtp, bd_t *bd, int flag, int argc, char *argv[])
94{
95}
96
Jon Loeliger44312832007-07-09 19:06:00 -050097#endif