1 files changed, 30 insertions, 0 deletions
diff --git a/include/asm-cris/arch-v10/timex.h b/include/asm-cris/arch-v10/timex.h
new file mode 100644
index 0000000..ecfc553
--- /dev/null
+++ b/include/asm-cris/arch-v10/timex.h
@@ -0,0 +1,30 @@
+/*
+ * Use prescale timer at 25000 Hz instead of the baudrate timer at 
+ * 19200 to get rid of the 64ppm to fast timer (and we get better 
+ * resolution within a jiffie as well. 
+ */
+#ifndef _ASM_CRIS_ARCH_TIMEX_H
+#define _ASM_CRIS_ARCH_TIMEX_H
+
+/* The prescaler clock runs at 25MHz, we divide it by 1000 in the prescaler */
+/* If you change anything here you must check time.c as well... */
+#define PRESCALE_FREQ 25000000
+#define PRESCALE_VALUE 1000
+#define CLOCK_TICK_RATE 25000 /* Underlying frequency of the HZ timer */
+/* The timer0 values gives 40us resolution (1/25000) but interrupts at HZ*/
+#define TIMER0_FREQ (CLOCK_TICK_RATE)
+#define TIMER0_CLKSEL flexible
+#define TIMER0_DIV (TIMER0_FREQ/(HZ))
+
+
+#define GET_JIFFIES_USEC() \
+  ( (TIMER0_DIV - *R_TIMER0_DATA) * (1000000/HZ)/TIMER0_DIV )
+
+unsigned long get_ns_in_jiffie(void);
+
+extern inline unsigned long get_us_in_jiffie_highres(void)
+{
+	return get_ns_in_jiffie()/1000;
+}
+
+#endif