1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
|
/*
* (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 () / CFG_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");
}
|
