[U-Boot] [PATCH 1/4] exynos: Export timer_get_us() to get microsecond timer
Rajeshwari S Shinde
rajeshwari.s at samsung.com
Tue Oct 8 12:50:03 CEST 2013
From: Rajeshwari Shinde <rajeshwari.s at samsung.com>
This function, if implemented by the board, provides a microsecond
timer. The granularity may be larger than 1us if hardware does not
support this.
Signed-off-by: Simon Glass <sjg at chromium.org>
Signed-off-by: Rajeshwari S Shinde <rajeshwari.s at samsung.com>
---
include/common.h | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/include/common.h b/include/common.h
index 8addf43..42964bc 100644
--- a/include/common.h
+++ b/include/common.h
@@ -596,6 +596,12 @@ void ddr_enable_ecc(unsigned int dram_size);
#endif
#endif
+/*
+ * Return the current value of a monotonically increasing microsecond timer.
+ * Granularity may be larger than 1us if hardware does not support this.
+ */
+ulong timer_get_us(void);
+
/* $(CPU)/cpu.c */
static inline int cpumask_next(int cpu, unsigned int mask)
{
--
1.7.12.4
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