summaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
authorRajeshwari Shinde <rajeshwari.s@samsung.com>2013-10-08 16:20:03 +0530
committerJagannadha Sutradharudu Teki <jaganna@xilinx.com>2013-10-08 18:18:10 +0530
commitfc9ae1bac45a40bdc9b8756757b645dc8d5b781c (patch)
treeb1000a088a07a567c9e27858c12cdce4b3971fa8
parent3cfcf774c270ecf6289203d88f859d1f91cb318e (diff)
downloadblackbird-obmc-uboot-fc9ae1bac45a40bdc9b8756757b645dc8d5b781c.tar.gz
blackbird-obmc-uboot-fc9ae1bac45a40bdc9b8756757b645dc8d5b781c.zip
exynos: Export timer_get_us() to get microsecond timer
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@chromium.org> Signed-off-by: Rajeshwari S Shinde <rajeshwari.s@samsung.com> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com>
-rw-r--r--include/common.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/include/common.h b/include/common.h
index f1a590a15e..bed43168fe 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)
{
OpenPOWER on IntegriCloud