I traced the problem to a missing feature in the Embedded Controller
firmware for XO-1 .http://dev.laptop.org/ticket/11347 . Richard and I
will work on it soon, during down time in our impending trip to Shanghai.
On 10/17/2011 2:11 AM, Esteban Bordón wrote:
I've tried in 2 XO 1.0 and I have the same behaviour in both laptops.
For each boot, the laptop repeats steps b and c, then, laptop powers
off. If XO have "rt" tag will never boot.
2011/10/14 Mitch Bradley <w...@laptop.org <mailto:w...@laptop.org>>
The most likely explanation is that OFW had to power off in order
to re-enable writing to the SPI FLASH. That can happen if the
last reboot was from Linux. See http://dev.laptop.org/ticket/4397
Unless that bug is fixed, the process will be:
a) Linux reboots
b) OFW runs rtc-rollback? and tries to write the new timestamp SPI
FLASH
c) OFW is unable to perform the write because SPI FLASH is locked
d) OFW reboots, using the EC command that unlocks SPI FLASH
e) OFW runs rtc-rollback? and sucessfully writes the new timestamp'
The net result is that reboots will take slightly longer when
anti-rollback is enabled.
On 10/14/2011 2:53 AM, Esteban Bordón wrote:
2011/10/11 Esteban Bordón <ebor...@plan.ceibal.edu.uy
<mailto:ebor...@plan.ceibal.edu.uy>>
Hi all,
I'm trying to test the RTCAR including on OFW Q2E46 by
following the steps indicated in
http://wiki.laptop.org/go/RTC_Anti-rollback#Testing_Rollback_Detection.
I added the "rt" tag, but when I run command
ok rtc-rollback? .
the laptop powers off.
Is it a normal behaviour?
cheers,
Esteban
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