bcm2835_timer.c (b2fc382aad0a8f52803acdc3ac4e5540dbcdf1f6) bcm2835_timer.c (c1b724f6659a7e9e32f8fcf6409d053e1b7bccad)
1/*
2 * Copyright 2012 Simon Arlott
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
17 */
18
1/*
2 * Copyright 2012 Simon Arlott
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
17 */
18
19#include <linux/bcm2835_timer.h>
20#include <linux/bitops.h>
21#include <linux/clockchips.h>
22#include <linux/clocksource.h>
23#include <linux/interrupt.h>
24#include <linux/irqreturn.h>
25#include <linux/kernel.h>
26#include <linux/module.h>
27#include <linux/of_address.h>

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96 }
97}
98
99static struct of_device_id bcm2835_time_match[] __initconst = {
100 { .compatible = "brcm,bcm2835-system-timer" },
101 {}
102};
103
19#include <linux/bitops.h>
20#include <linux/clockchips.h>
21#include <linux/clocksource.h>
22#include <linux/interrupt.h>
23#include <linux/irqreturn.h>
24#include <linux/kernel.h>
25#include <linux/module.h>
26#include <linux/of_address.h>

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95 }
96}
97
98static struct of_device_id bcm2835_time_match[] __initconst = {
99 { .compatible = "brcm,bcm2835-system-timer" },
100 {}
101};
102
104void __init bcm2835_timer_init(void)
103static void __init bcm2835_timer_init(void)
105{
106 struct device_node *node;
107 void __iomem *base;
108 u32 freq;
109 int irq;
110 struct bcm2835_timer *timer;
111
112 node = of_find_matching_node(NULL, bcm2835_time_match);

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150
151 if (setup_irq(irq, &timer->act))
152 panic("Can't set up timer IRQ\n");
153
154 clockevents_config_and_register(&timer->evt, freq, 0xf, 0xffffffff);
155
156 pr_info("bcm2835: system timer (irq = %d)\n", irq);
157}
104{
105 struct device_node *node;
106 void __iomem *base;
107 u32 freq;
108 int irq;
109 struct bcm2835_timer *timer;
110
111 node = of_find_matching_node(NULL, bcm2835_time_match);

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149
150 if (setup_irq(irq, &timer->act))
151 panic("Can't set up timer IRQ\n");
152
153 clockevents_config_and_register(&timer->evt, freq, 0xf, 0xffffffff);
154
155 pr_info("bcm2835: system timer (irq = %d)\n", irq);
156}
157CLOCKSOURCE_OF_DECLARE(bcm2835, "brcm,bcm2835-system-timer",
158 bcm2835_timer_init);