diff options
Diffstat (limited to 'arch/sh/kernel/timers/timer.c')
-rw-r--r-- | arch/sh/kernel/timers/timer.c | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/arch/sh/kernel/timers/timer.c b/arch/sh/kernel/timers/timer.c new file mode 100644 index 000000000000..dc1f631053a8 --- /dev/null +++ b/arch/sh/kernel/timers/timer.c | |||
@@ -0,0 +1,50 @@ | |||
1 | /* | ||
2 | * arch/sh/kernel/timers/timer.c - Common timer code | ||
3 | * | ||
4 | * Copyright (C) 2005 Paul Mundt | ||
5 | * | ||
6 | * This file is subject to the terms and conditions of the GNU General Public | ||
7 | * License. See the file "COPYING" in the main directory of this archive | ||
8 | * for more details. | ||
9 | */ | ||
10 | #include <linux/kernel.h> | ||
11 | #include <linux/init.h> | ||
12 | #include <linux/timer.h> | ||
13 | #include <linux/string.h> | ||
14 | #include <asm/timer.h> | ||
15 | |||
16 | static struct sys_timer *sys_timers[] __initdata = { | ||
17 | #ifdef CONFIG_SH_TMU | ||
18 | &tmu_timer, | ||
19 | #endif | ||
20 | NULL, | ||
21 | }; | ||
22 | |||
23 | static char timer_override[10] __initdata; | ||
24 | static int __init timer_setup(char *str) | ||
25 | { | ||
26 | if (str) | ||
27 | strlcpy(timer_override, str, sizeof(timer_override)); | ||
28 | return 1; | ||
29 | } | ||
30 | __setup("timer=", timer_setup); | ||
31 | |||
32 | struct sys_timer *get_sys_timer(void) | ||
33 | { | ||
34 | int i; | ||
35 | |||
36 | for (i = 0; i < ARRAY_SIZE(sys_timers); i++) { | ||
37 | struct sys_timer *t = sys_timers[i]; | ||
38 | |||
39 | if (unlikely(!t)) | ||
40 | break; | ||
41 | if (unlikely(timer_override[0])) | ||
42 | if ((strcmp(timer_override, t->name) != 0)) | ||
43 | continue; | ||
44 | if (likely(t->ops->init() == 0)) | ||
45 | return t; | ||
46 | } | ||
47 | |||
48 | return NULL; | ||
49 | } | ||
50 | |||