diff options
Diffstat (limited to 'arch/h8300/kernel/timer/itu.c')
| -rw-r--r-- | arch/h8300/kernel/timer/itu.c | 82 |
1 files changed, 0 insertions, 82 deletions
diff --git a/arch/h8300/kernel/timer/itu.c b/arch/h8300/kernel/timer/itu.c deleted file mode 100644 index 0a8b5cd5bf38..000000000000 --- a/arch/h8300/kernel/timer/itu.c +++ /dev/null | |||
| @@ -1,82 +0,0 @@ | |||
| 1 | /* | ||
| 2 | * linux/arch/h8300/kernel/timer/itu.c | ||
| 3 | * | ||
| 4 | * Yoshinori Sato <ysato@users.sourcefoge.jp> | ||
| 5 | * | ||
| 6 | * ITU 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 | #if CONFIG_H8300_ITU_CH == 0 | ||
| 26 | #define ITUBASE 0xffff64 | ||
| 27 | #define ITUIRQ 24 | ||
| 28 | #elif CONFIG_H8300_ITU_CH == 1 | ||
| 29 | #define ITUBASE 0xffff6e | ||
| 30 | #define ITUIRQ 28 | ||
| 31 | #elif CONFIG_H8300_ITU_CH == 2 | ||
| 32 | #define ITUBASE 0xffff78 | ||
| 33 | #define ITUIRQ 32 | ||
| 34 | #elif CONFIG_H8300_ITU_CH == 3 | ||
| 35 | #define ITUBASE 0xffff82 | ||
| 36 | #define ITUIRQ 36 | ||
| 37 | #elif CONFIG_H8300_ITU_CH == 4 | ||
| 38 | #define ITUBASE 0xffff92 | ||
| 39 | #define ITUIRQ 40 | ||
| 40 | #else | ||
| 41 | #error Unknown timer channel. | ||
| 42 | #endif | ||
| 43 | |||
| 44 | #define TCR 0 | ||
| 45 | #define TIOR 1 | ||
| 46 | #define TIER 2 | ||
| 47 | #define TSR 3 | ||
| 48 | #define TCNT 4 | ||
| 49 | #define GRA 6 | ||
| 50 | #define GRB 8 | ||
| 51 | |||
| 52 | static irqreturn_t timer_interrupt(int irq, void *dev_id) | ||
| 53 | { | ||
| 54 | h8300_timer_tick(); | ||
| 55 | ctrl_bclr(IMFA, ITUBASE + TSR); | ||
| 56 | return IRQ_HANDLED; | ||
| 57 | } | ||
| 58 | |||
| 59 | static struct irqaction itu_irq = { | ||
| 60 | .name = "itu", | ||
| 61 | .handler = timer_interrupt, | ||
| 62 | .flags = IRQF_DISABLED | IRQF_TIMER, | ||
| 63 | }; | ||
| 64 | |||
| 65 | static const int __initconst divide_rate[] = {1, 2, 4, 8}; | ||
| 66 | |||
| 67 | void __init h8300_timer_setup(void) | ||
| 68 | { | ||
| 69 | unsigned int div; | ||
| 70 | unsigned int cnt; | ||
| 71 | |||
| 72 | calc_param(cnt, div, divide_rate, 0x10000); | ||
| 73 | |||
| 74 | setup_irq(ITUIRQ, &itu_irq); | ||
| 75 | |||
| 76 | /* initialize timer */ | ||
| 77 | ctrl_outb(0, TSTR); | ||
| 78 | ctrl_outb(CCLR0 | div, ITUBASE + TCR); | ||
| 79 | ctrl_outb(0x01, ITUBASE + TIER); | ||
| 80 | ctrl_outw(cnt, ITUBASE + GRA); | ||
| 81 | ctrl_bset(CONFIG_H8300_ITU_CH, TSTR); | ||
| 82 | } | ||