h8300: update timer handler - new files

New timer handler files.

Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 25 insertions, 0 deletions

diff --git a/include/asm-h8300/timer.h b/include/asm-h8300/timer.h
new file mode 100644
index 00000000000..def80464d38
--- /dev/null
+++ b/include/asm-h8300/timer.h
@@ -0,0 +1,25 @@
+#ifndef __H8300_TIMER_H
+#define __H8300_TIMER_H
+
+void h8300_timer_tick(void);
+void h8300_timer_setup(void);
+void h8300_gettod(unsigned int *year, unsigned int *mon, unsigned int *day,
+                   unsigned int *hour, unsigned int *min, unsigned int *sec);
+
+#define TIMER_FREQ (CONFIG_CPU_CLOCK*10000) /* Timer input freq. */
+
+#define calc_param(cnt, div, rate, limit)                       \
+do {                                                            \
+        cnt = TIMER_FREQ / HZ;                                  \
+        for (div = 0; div < ARRAY_SIZE(divide_rate); div++) {   \
+                if (rate[div] == 0)                             \
+                        continue;                               \
+                if ((cnt / rate[div]) > limit)                  \
+                        break;                                  \
+        }                                                       \
+        if (div == ARRAY_SIZE(divide_rate))                     \
+                panic("Timer counter overflow");                \
+        cnt /= divide_rate[div];                                \
+} while(0)
+
+#endif