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authorWerner Zeh <werner.zeh@siemens.com>2017-06-29 08:37:14 +0200
committerWerner Zeh <werner.zeh@siemens.com>2017-06-30 16:57:12 +0000
commit6e6261e89344ff25dc3beb0b8abb753ff2347624 (patch)
treefba5870c3072fe2c42165d225e2e1912d7dbef1f /3rdparty
parent083504b66b5f3b281221f0a8f4fd62a4d9071287 (diff)
rx6110sa: Add a software reset sequence in case of power loss
According to the datasheet the RTC needs a power rising slope of no more than 100µs/V to ensure a correct power-on reset. If the mainboard that hosts the RTC cannot guarantee this, a software reset sequence is needed in the case where the battery was drained completely. As the rising slope of the power supply depends on so many parameters and is highly mainboard specific, refactor the initialization code to perform a software reset every time a power loss event is recognized by the RTC. Change-Id: If64d672e51667523058041bd00e1e50ac047143d Signed-off-by: Werner Zeh <werner.zeh@siemens.com> Reviewed-on: https://review.coreboot.org/20412 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Martin Roth <martinroth@google.com>
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