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From: Steven Scholz <steven.scholz@imc-berlin.de>
To: u-boot@lists.denx.de
Subject: [U-Boot-Users] "date reset" for MPC8xx
Date: Mon, 14 Apr 2003 15:16:50 +0200	[thread overview]
Message-ID: <3E9AB4C2.6020500@imc-berlin.de> (raw)

Hi there,

I think would should realy reset the MPC8xx's internal RTC when 
calling "date reset" or "rtc_reset" instead of "nothing to do".

Please find and consider the attached patch.

Background:

I have seen it several times, that the MPC8xx's internal RTC contains 
an invalid date, e.g. negative times (caused by no or low battery). 
That might result in dates before 1970-01-01 under Linux and that in 
turn confuses timeouts.

I've seen that udhcpc (from busybox) hangs in such cases!

For that reason u-boot should check for valid dates and do a 
rtc_reset() if nessesary.


Thanks,

Steven

---------

CHANGELOG:

* Patch by Steven Scholz, 14 Apr 2003:
   - reset_rtc() sets MPC8xx internal RTC back to 1970-01-01

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             reply	other threads:[~2003-04-14 13:16 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-04-14 13:16 Steven Scholz [this message]
2003-04-14 13:41 ` [U-Boot-Users] "date reset" for MPC8xx Wolfgang Denk

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