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authorMark Brown <broonie@opensource.wolfsonmicro.com>2010-01-25 14:52:48 +0000
committerMark Brown <broonie@opensource.wolfsonmicro.com>2010-01-25 14:52:48 +0000
commitf1487fcbe47cd2bc0c71e8598bf9eb6a82dec544 (patch)
tree4c7abed6047538c13dd024a8ecffd15f31b4609a /arch/sh/include/asm/timex.h
parent84549d239ab9bb2e3a85c6efcf0e6478a38b4260 (diff)
parent40aa7030e5213a43e9e0554fd7f95534ea310bf3 (diff)
Merge branch 'for-2.6.33' into for-2.6.34
Diffstat (limited to 'arch/sh/include/asm/timex.h')
-rw-r--r--arch/sh/include/asm/timex.h10
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/sh/include/asm/timex.h b/arch/sh/include/asm/timex.h
index b556d49e5f2..18bf06d9c76 100644
--- a/arch/sh/include/asm/timex.h
+++ b/arch/sh/include/asm/timex.h
@@ -6,7 +6,17 @@
#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>