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Ralf Baechle23fbee92005-07-25 22:45:45 +00001/*
Uwe Zeisbergerf30c2262006-10-03 23:01:26 +02002 * linux/arch/mips/tx4938/common/irq.c
Ralf Baechle23fbee92005-07-25 22:45:45 +00003 *
4 * Common tx4938 irq handler
5 * Copyright (C) 2000-2001 Toshiba Corporation
6 *
7 * 2003-2005 (c) MontaVista Software, Inc. This file is licensed under the
8 * terms of the GNU General Public License version 2. This program is
9 * licensed "as is" without any warranty of any kind, whether express
10 * or implied.
11 *
12 * Support for TX4938 in 2.6 - Manish Lachwani (mlachwani@mvista.com)
13 */
Ralf Baechle23fbee92005-07-25 22:45:45 +000014#include <linux/init.h>
Ralf Baechle23fbee92005-07-25 22:45:45 +000015#include <linux/interrupt.h>
Atsushi Nemotoc87abd72007-08-02 23:36:02 +090016#include <asm/irq_cpu.h>
Atsushi Nemotoedcaf1a2008-07-11 23:27:54 +090017#include <asm/txx9/tx4938.h>
Ralf Baechle23fbee92005-07-25 22:45:45 +000018
Atsushi Nemotoedcaf1a2008-07-11 23:27:54 +090019void __init tx4938_irq_init(void)
Ralf Baechle23fbee92005-07-25 22:45:45 +000020{
Atsushi Nemoto74894362008-08-19 22:55:12 +090021 int i;
22
Atsushi Nemotoc87abd72007-08-02 23:36:02 +090023 mips_cpu_irq_init();
Atsushi Nemoto94a4c322008-07-19 01:51:47 +090024 txx9_irq_init(TX4938_IRC_REG & 0xfffffffffULL);
Atsushi Nemotoedcaf1a2008-07-11 23:27:54 +090025 set_irq_chained_handler(MIPS_CPU_IRQ_BASE + TX4938_IRC_INT,
26 handle_simple_irq);
Atsushi Nemoto74894362008-08-19 22:55:12 +090027 /* raise priority for errors, timers, SIO */
28 txx9_irq_set_pri(TX4938_IR_ECCERR, 7);
29 txx9_irq_set_pri(TX4938_IR_WTOERR, 7);
30 txx9_irq_set_pri(TX4938_IR_PCIERR, 7);
31 txx9_irq_set_pri(TX4938_IR_PCIPME, 7);
32 for (i = 0; i < TX4938_NUM_IR_TMR; i++)
33 txx9_irq_set_pri(TX4938_IR_TMR(i), 6);
34 for (i = 0; i < TX4938_NUM_IR_SIO; i++)
35 txx9_irq_set_pri(TX4938_IR_SIO(i), 5);
Ralf Baechlee4ac58a2006-04-03 17:56:36 +010036}