diff options
Diffstat (limited to 'arch/sh/kernel/localtimer.c')
-rw-r--r-- | arch/sh/kernel/localtimer.c | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/arch/sh/kernel/localtimer.c b/arch/sh/kernel/localtimer.c new file mode 100644 index 000000000000..96e8eaea1e62 --- /dev/null +++ b/arch/sh/kernel/localtimer.c | |||
@@ -0,0 +1,57 @@ | |||
1 | /* | ||
2 | * Dummy local timer | ||
3 | * | ||
4 | * Copyright (C) 2008 Paul Mundt | ||
5 | * | ||
6 | * cloned from: | ||
7 | * | ||
8 | * linux/arch/arm/mach-realview/localtimer.c | ||
9 | * | ||
10 | * Copyright (C) 2002 ARM Ltd. | ||
11 | * All Rights Reserved | ||
12 | * | ||
13 | * This program is free software; you can redistribute it and/or modify | ||
14 | * it under the terms of the GNU General Public License version 2 as | ||
15 | * published by the Free Software Foundation. | ||
16 | */ | ||
17 | #include <linux/init.h> | ||
18 | #include <linux/kernel.h> | ||
19 | #include <linux/delay.h> | ||
20 | #include <linux/device.h> | ||
21 | #include <linux/smp.h> | ||
22 | #include <linux/jiffies.h> | ||
23 | #include <linux/percpu.h> | ||
24 | #include <linux/clockchips.h> | ||
25 | #include <linux/irq.h> | ||
26 | |||
27 | static DEFINE_PER_CPU(struct clock_event_device, local_clockevent); | ||
28 | |||
29 | /* | ||
30 | * Used on SMP for either the local timer or SMP_MSG_TIMER | ||
31 | */ | ||
32 | void local_timer_interrupt(void) | ||
33 | { | ||
34 | struct clock_event_device *clk = &__get_cpu_var(local_clockevent); | ||
35 | |||
36 | clk->event_handler(clk); | ||
37 | } | ||
38 | |||
39 | static void dummy_timer_set_mode(enum clock_event_mode mode, | ||
40 | struct clock_event_device *clk) | ||
41 | { | ||
42 | } | ||
43 | |||
44 | void __cpuinit local_timer_setup(unsigned int cpu) | ||
45 | { | ||
46 | struct clock_event_device *clk = &per_cpu(local_clockevent, cpu); | ||
47 | |||
48 | clk->name = "dummy_timer"; | ||
49 | clk->features = CLOCK_EVT_FEAT_DUMMY; | ||
50 | clk->rating = 200; | ||
51 | clk->mult = 1; | ||
52 | clk->set_mode = dummy_timer_set_mode; | ||
53 | clk->broadcast = smp_timer_broadcast; | ||
54 | clk->cpumask = cpumask_of(cpu); | ||
55 | |||
56 | clockevents_register_device(clk); | ||
57 | } | ||