summaryrefslogtreecommitdiffstats
path: root/kernel/arch/sh/include/asm/timex.h
diff options
context:
space:
mode:
Diffstat (limited to 'kernel/arch/sh/include/asm/timex.h')
-rw-r--r--kernel/arch/sh/include/asm/timex.h23
1 files changed, 23 insertions, 0 deletions
diff --git a/kernel/arch/sh/include/asm/timex.h b/kernel/arch/sh/include/asm/timex.h
new file mode 100644
index 000000000..18bf06d9c
--- /dev/null
+++ b/kernel/arch/sh/include/asm/timex.h
@@ -0,0 +1,23 @@
+/*
+ * linux/include/asm-sh/timex.h
+ *
+ * sh architecture timex specifications
+ */
+#ifndef __ASM_SH_TIMEX_H
+#define __ASM_SH_TIMEX_H
+
+/*
+ * Only parts using the legacy CPG code for their clock framework
+ * implementation need to define their own Pclk value. If provided, this
+ * can be used for accurately setting CLOCK_TICK_RATE, otherwise we
+ * simply fall back on the i8253 PIT value.
+ */
+#ifdef CONFIG_SH_PCLK_FREQ
+#define CLOCK_TICK_RATE (CONFIG_SH_PCLK_FREQ / 4) /* Underlying HZ */
+#else
+#define CLOCK_TICK_RATE 1193180
+#endif
+
+#include <asm-generic/timex.h>
+
+#endif /* __ASM_SH_TIMEX_H */