1 files changed, 54 insertions, 0 deletions
diff --git a/arch/h8300/platform/h8s/generic/timer.c b/arch/h8300/platform/h8s/generic/timer.c
new file mode 100644
index 000000000000..633cd8e1c21d
--- /dev/null
+++ b/arch/h8300/platform/h8s/generic/timer.c
@@ -0,0 +1,54 @@
+/*
+ *  linux/arch/h8300/platform/h8s/generic/timer.c
+ *
+ *  Yoshinori Sato <ysato@users.sourceforge.jp>
+ *
+ *  Platform depend Timer Handler
+ *
+ */
+
+#include <linux/config.h>
+#include <linux/errno.h>
+#include <linux/sched.h>
+#include <linux/kernel.h>
+#include <linux/param.h>
+#include <linux/string.h>
+#include <linux/mm.h>
+#include <linux/interrupt.h>
+#include <linux/init.h>
+#include <linux/timex.h>
+
+#include <asm/segment.h>
+#include <asm/io.h>
+#include <asm/irq.h>
+#include <asm/regs267x.h>
+
+#define CMFA 6
+
+#define CMIEA 0x40
+#define CCLR_CMA 0x08
+#define CLK_DIV8192 0x03
+
+#define H8300_TIMER_FREQ CONFIG_CPU_CLOCK*1000/8192 /* Timer input freq. */
+
+void __init platform_timer_setup(irqreturn_t (*timer_int)(int, void *, struct pt_regs *))
+{
+	/* 8bit timer module enabled */
+	ctrl_outb(ctrl_inb(MSTPCRL) & ~0x01, MSTPCRL);
+	/* setup 8bit timer ch1 */
+	ctrl_outb(H8300_TIMER_FREQ / HZ, _8TCORA1);      /* set interval */
+	ctrl_outb(0x00, _8TCSR1);                        /* no output */
+	request_irq(76, timer_int, 0, "timer" ,0);
+	ctrl_outb(CMIEA|CCLR_CMA|CLK_DIV8192, _8TCR1);   /* start count */
+}
+
+void platform_timer_eoi(void)
+{
+	*(volatile unsigned char *)_8TCSR1 &= ~(1 << CMFA);
+}
+
+void platform_gettod(int *year, int *mon, int *day, int *hour,
+		 int *min, int *sec)
+{
+	*year = *mon = *day = *hour = *min = *sec = 0;
+}