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-rw-r--r--arch/mips/bcm47xx/irq.c55
1 files changed, 55 insertions, 0 deletions
diff --git a/arch/mips/bcm47xx/irq.c b/arch/mips/bcm47xx/irq.c
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+++ b/arch/mips/bcm47xx/irq.c
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1/*
2 * Copyright (C) 2004 Florian Schirmer <jolt@tuxbox.org>
3 *
4 * This program is free software; you can redistribute it and/or modify it
5 * under the terms of the GNU General Public License as published by the
6 * Free Software Foundation; either version 2 of the License, or (at your
7 * option) any later version.
8 *
9 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
10 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
11 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
12 * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
13 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
14 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
15 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
16 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
17 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
18 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
19 *
20 * You should have received a copy of the GNU General Public License along
21 * with this program; if not, write to the Free Software Foundation, Inc.,
22 * 675 Mass Ave, Cambridge, MA 02139, USA.
23 */
24
25#include <linux/types.h>
26#include <linux/interrupt.h>
27#include <linux/irq.h>
28#include <asm/irq_cpu.h>
29
30void plat_irq_dispatch(void)
31{
32 u32 cause;
33
34 cause = read_c0_cause() & read_c0_status() & CAUSEF_IP;
35
36 clear_c0_status(cause);
37
38 if (cause & CAUSEF_IP7)
39 do_IRQ(7);
40 if (cause & CAUSEF_IP2)
41 do_IRQ(2);
42 if (cause & CAUSEF_IP3)
43 do_IRQ(3);
44 if (cause & CAUSEF_IP4)
45 do_IRQ(4);
46 if (cause & CAUSEF_IP5)
47 do_IRQ(5);
48 if (cause & CAUSEF_IP6)
49 do_IRQ(6);
50}
51
52void __init arch_init_irq(void)
53{
54 mips_cpu_irq_init();
55}