[U-Boot] [PATCH 10/33] rtc: mc146818: Set up RTC at start of day
Wolfgang Denk
wd at denx.de
Wed Nov 12 09:12:18 CET 2014
Dear Simon,
In message <1415751501-23407-11-git-send-email-sjg at chromium.org> you wrote:
> If the RTC needs to be cleared, write the U-Boot build date to it. In any
> case make sure the settings are correct.
Is this really a good idea? Why writing the build date? It is as
wrong as any other arbitrarily chose point of time, and when each
device comes up with a different (incorrect) time this could be pretty
much confusing.
If you need a sane time for initialization, would it not make more
sense to chose a fixed date? If you don't want to use the epoch (say,
to avoid y2038 issues), you could use 2010-01-01 00:00 or similar
instead.
If I see the clock comes up at such a date I will notice that this is
an uninitialized time. It it comes up with something as "Tue, 11 Nov
2014 17:17:58" I will assume this is a real time, and wonder what's
gone wrong that i's in the past.
Best regards,
Wolfgang Denk
--
DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
Anything that is worth doing at all is worth doing well.
-- Philip Earl of Chesterfield
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