diff options
Diffstat (limited to 'arch/h8300/kernel/timer/timer16.c')
-rw-r--r-- | arch/h8300/kernel/timer/timer16.c | 77 |
1 files changed, 0 insertions, 77 deletions
diff --git a/arch/h8300/kernel/timer/timer16.c b/arch/h8300/kernel/timer/timer16.c deleted file mode 100644 index 462d9f581719..000000000000 --- a/arch/h8300/kernel/timer/timer16.c +++ /dev/null | |||
@@ -1,77 +0,0 @@ | |||
1 | /* | ||
2 | * linux/arch/h8300/kernel/timer/timer16.c | ||
3 | * | ||
4 | * Yoshinori Sato <ysato@users.sourcefoge.jp> | ||
5 | * | ||
6 | * 16bit Timer Handler | ||
7 | * | ||
8 | */ | ||
9 | |||
10 | #include <linux/errno.h> | ||
11 | #include <linux/sched.h> | ||
12 | #include <linux/kernel.h> | ||
13 | #include <linux/param.h> | ||
14 | #include <linux/string.h> | ||
15 | #include <linux/mm.h> | ||
16 | #include <linux/interrupt.h> | ||
17 | #include <linux/init.h> | ||
18 | #include <linux/timex.h> | ||
19 | |||
20 | #include <asm/segment.h> | ||
21 | #include <asm/io.h> | ||
22 | #include <asm/irq.h> | ||
23 | #include <asm/regs306x.h> | ||
24 | |||
25 | /* 16bit timer */ | ||
26 | #if CONFIG_H8300_TIMER16_CH == 0 | ||
27 | #define _16BASE 0xffff78 | ||
28 | #define _16IRQ 24 | ||
29 | #elif CONFIG_H8300_TIMER16_CH == 1 | ||
30 | #define _16BASE 0xffff80 | ||
31 | #define _16IRQ 28 | ||
32 | #elif CONFIG_H8300_TIMER16_CH == 2 | ||
33 | #define _16BASE 0xffff88 | ||
34 | #define _16IRQ 32 | ||
35 | #else | ||
36 | #error Unknown timer channel. | ||
37 | #endif | ||
38 | |||
39 | #define TCR 0 | ||
40 | #define TIOR 1 | ||
41 | #define TCNT 2 | ||
42 | #define GRA 4 | ||
43 | #define GRB 6 | ||
44 | |||
45 | #define H8300_TIMER_FREQ CONFIG_CPU_CLOCK*10000 /* Timer input freq. */ | ||
46 | |||
47 | static irqreturn_t timer_interrupt(int irq, void *dev_id) | ||
48 | { | ||
49 | h8300_timer_tick(); | ||
50 | ctrl_bclr(CONFIG_H8300_TIMER16_CH, TISRA); | ||
51 | return IRQ_HANDLED; | ||
52 | } | ||
53 | |||
54 | static struct irqaction timer16_irq = { | ||
55 | .name = "timer-16", | ||
56 | .handler = timer_interrupt, | ||
57 | .flags = IRQF_DISABLED | IRQF_TIMER, | ||
58 | }; | ||
59 | |||
60 | static const int __initconst divide_rate[] = {1, 2, 4, 8}; | ||
61 | |||
62 | void __init h8300_timer_setup(void) | ||
63 | { | ||
64 | unsigned int div; | ||
65 | unsigned int cnt; | ||
66 | |||
67 | calc_param(cnt, div, divide_rate, 0x10000); | ||
68 | |||
69 | setup_irq(_16IRQ, &timer16_irq); | ||
70 | |||
71 | /* initialize timer */ | ||
72 | ctrl_outb(0, TSTR); | ||
73 | ctrl_outb(CCLR0 | div, _16BASE + TCR); | ||
74 | ctrl_outw(cnt, _16BASE + GRA); | ||
75 | ctrl_bset(4 + CONFIG_H8300_TIMER16_CH, TISRA); | ||
76 | ctrl_bset(CONFIG_H8300_TIMER16_CH, TSTR); | ||
77 | } | ||