xref: /linux/arch/mips/txx9/generic/irq_tx4938.c (revision e5451c8f8330e03ad3cfa16048b4daf961af434f)
1 /*
2  * linux/arch/mips/tx4938/common/irq.c
3  *
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  */
14 #include <linux/init.h>
15 #include <linux/interrupt.h>
16 #include <linux/irq.h>
17 #include <asm/irq_cpu.h>
18 #include <asm/txx9/tx4938.h>
19 
tx4938_irq_init(void)20 void __init tx4938_irq_init(void)
21 {
22 	int i;
23 
24 	mips_cpu_irq_init();
25 	txx9_irq_init(TX4938_IRC_REG & 0xfffffffffULL);
26 	irq_set_chained_handler(MIPS_CPU_IRQ_BASE + TX4938_IRC_INT,
27 				handle_simple_irq);
28 	/* raise priority for errors, timers, SIO */
29 	txx9_irq_set_pri(TX4938_IR_ECCERR, 7);
30 	txx9_irq_set_pri(TX4938_IR_WTOERR, 7);
31 	txx9_irq_set_pri(TX4938_IR_PCIERR, 7);
32 	txx9_irq_set_pri(TX4938_IR_PCIPME, 7);
33 	for (i = 0; i < TX4938_NUM_IR_TMR; i++)
34 		txx9_irq_set_pri(TX4938_IR_TMR(i), 6);
35 	for (i = 0; i < TX4938_NUM_IR_SIO; i++)
36 		txx9_irq_set_pri(TX4938_IR_SIO(i), 5);
37 }
38