About RTC of PXA270

Hello,

Please tell me about RTC of PXA270.

In my board, RTC Counter Register (RCNR) is cleared when I reset a CPU. (RCNR become zero).
So, "date" is always UNIX epoch when Linux is started.
RCNR is changed when I carry out "hwclock -w".
However, the other RTC registers do not change.
My question is as follows.


1. When a CPU was reset, is it right movement that RCNR is cleared?
2. if yes, where is "date" stored?


Regards

I'm sorry, I overlooked the following parts of PXA27x Processor Family Developer's Manual.

21.4 Operation
==========
With the exception of the RTC Trim register, all registers
in the RTC controller are reset by hardware reset and
watchdog reset. The RTC Trim register (RTTR) is reset by the
hardware reset only.

The other resets(sleep-exit and GPIO) do not affect any of
the RTC controller blocks.
==========