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Diffstat (limited to 'arch/h8300/kernel/timer/timer8.c')
-rw-r--r--arch/h8300/kernel/timer/timer8.c102
1 files changed, 0 insertions, 102 deletions
diff --git a/arch/h8300/kernel/timer/timer8.c b/arch/h8300/kernel/timer/timer8.c
deleted file mode 100644
index 505f3415b40f..000000000000
--- a/arch/h8300/kernel/timer/timer8.c
+++ /dev/null
@@ -1,102 +0,0 @@
1/*
2 * linux/arch/h8300/kernel/cpu/timer/timer8.c
3 *
4 * Yoshinori Sato <ysato@users.sourcefoge.jp>
5 *
6 * 8bit 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/profile.h>
19
20#include <asm/io.h>
21#include <asm/irq.h>
22#include <asm/timer.h>
23#if defined(CONFIG_CPU_H8300H)
24#include <asm/regs306x.h>
25#endif
26#if defined(CONFIG_CPU_H8S)
27#include <asm/regs267x.h>
28#endif
29
30/* 8bit timer x2 */
31#define CMFA 6
32
33#if defined(CONFIG_H8300_TIMER8_CH0)
34#define _8BASE _8TCR0
35#ifdef CONFIG_CPU_H8300H
36#define _8IRQ 36
37#endif
38#ifdef CONFIG_CPU_H8S
39#define _8IRQ 72
40#endif
41#elif defined(CONFIG_H8300_TIMER8_CH2)
42#ifdef CONFIG_CPU_H8300H
43#define _8BASE _8TCR2
44#define _8IRQ 40
45#endif
46#endif
47
48#ifndef _8BASE
49#error Unknown timer channel.
50#endif
51
52#define _8TCR 0
53#define _8TCSR 2
54#define TCORA 4
55#define TCORB 6
56#define _8TCNT 8
57
58#define CMIEA 0x40
59#define CCLR_CMA 0x08
60#define CKS2 0x04
61
62/*
63 * timer_interrupt() needs to keep up the real-time clock,
64 * as well as call the "xtime_update()" routine every clocktick
65 */
66
67static irqreturn_t timer_interrupt(int irq, void *dev_id)
68{
69 h8300_timer_tick();
70 ctrl_bclr(CMFA, _8BASE + _8TCSR);
71 return IRQ_HANDLED;
72}
73
74static struct irqaction timer8_irq = {
75 .name = "timer-8",
76 .handler = timer_interrupt,
77 .flags = IRQF_DISABLED | IRQF_TIMER,
78};
79
80static const int __initconst divide_rate[] = {8, 64, 8192};
81
82void __init h8300_timer_setup(void)
83{
84 unsigned int div;
85 unsigned int cnt;
86
87 calc_param(cnt, div, divide_rate, 0x10000);
88 div++;
89
90 setup_irq(_8IRQ, &timer8_irq);
91
92#if defined(CONFIG_CPU_H8S)
93 /* Timer module enable */
94 ctrl_bclr(0, MSTPCRL)
95#endif
96
97 /* initialize timer */
98 ctrl_outw(cnt, _8BASE + TCORA);
99 ctrl_outw(0x0000, _8BASE + _8TCSR);
100 ctrl_outw((CMIEA|CCLR_CMA|CKS2) << 8 | div,
101 _8BASE + _8TCR);
102}