mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-17 09:14:19 +08:00
eb1d65aa1b
Interrupt setup support for the Atmel AT91x40 CPU family. Signed-off-by: Greg Ungerer <gerg@uclinux.org> Acked-by: Andrew Victor <andrew@sanpeople.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
68 lines
1.6 KiB
C
68 lines
1.6 KiB
C
/*
|
|
* arch/arm/mach-at91/at91x40.c
|
|
*
|
|
* (C) Copyright 2007, Greg Ungerer <gerg@snapgear.com>
|
|
* Copyright (C) 2005 SAN People
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
#include <linux/kernel.h>
|
|
#include <linux/init.h>
|
|
#include <linux/irq.h>
|
|
#include <asm/mach/arch.h>
|
|
#include <asm/arch/at91x40.h>
|
|
#include <asm/arch/at91_st.h>
|
|
#include "generic.h"
|
|
|
|
/*
|
|
* This is used in the gpio code, stub locally.
|
|
*/
|
|
int clk_enable(struct clk *clk)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
void __init at91x40_initialize(unsigned long main_clock)
|
|
{
|
|
at91_extern_irq = (1 << AT91X40_ID_IRQ0) | (1 << AT91X40_ID_IRQ1)
|
|
| (1 << AT91X40_ID_IRQ2);
|
|
}
|
|
|
|
/*
|
|
* The default interrupt priority levels (0 = lowest, 7 = highest).
|
|
*/
|
|
static unsigned int at91x40_default_irq_priority[NR_AIC_IRQS] __initdata = {
|
|
7, /* Advanced Interrupt Controller (FIQ) */
|
|
0, /* System Peripherals */
|
|
0, /* USART 0 */
|
|
0, /* USART 1 */
|
|
2, /* Timer Counter 0 */
|
|
2, /* Timer Counter 1 */
|
|
2, /* Timer Counter 2 */
|
|
0, /* Watchdog timer */
|
|
0, /* Parallel IO Controller A */
|
|
0, /* Reserved */
|
|
0, /* Reserved */
|
|
0, /* Reserved */
|
|
0, /* Reserved */
|
|
0, /* Reserved */
|
|
0, /* Reserved */
|
|
0, /* Reserved */
|
|
0, /* External IRQ0 */
|
|
0, /* External IRQ1 */
|
|
0, /* External IRQ2 */
|
|
};
|
|
|
|
void __init at91x40_init_interrupts(unsigned int priority[NR_AIC_IRQS])
|
|
{
|
|
if (!priority)
|
|
priority = at91x40_default_irq_priority;
|
|
|
|
at91_aic_init(priority);
|
|
}
|
|
|