Simon Glass 6d04819930 Add time_since32() to return microseconds since a start time ...

It is useful to implement timeouts like this:

start = get_time();
while (time_since32(start) < 1000)
   ...

Add a function to make this easy. Note that for efficiency we only
support a 32-bit return value which limits the timeouts to about an
hour.

BUG=chrome-os-partner:10888
TEST=manual:
build for all boards
boot on snow

Change-Id: I200cb04f5a76b4c76a9bc314d927e4bab1f08a56
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/26289
Reviewed-by: Randall Spangler <rspangler@chromium.org>

2012-06-28 17:06:46 -07:00

2.2 KiB

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