RTC Time Update Issue

[Gaurav Pathak]

Hi,
I am newbie to Embedded Linux. I have A20-Olinuxino-Micro Rev E, board. The difficulty I am facing is that when ever I start my board I have to update the date and time by running command "date ddMMhhmmyyy". As there is no battery backup for on-chip RTC I am fed up by running this command everytime after boot up.
Is there any way to provide battery backup only to RTC or any other way around?

[KNK]

You can enable ntpd - it will set the date on startup and keep the time in sync

[Gaurav Pathak]

Thank you for your reply.
But to sync time using ntp I think I have to connect the board into LAN? If it is so then I am helpless. Is there any other way around so that I don't have to connect it to Router or network in order to update time.

[KNK]

The board does not have RTC i think, so you may need add an UEXT module - https://www.olimex.com/Products/Modules/Time/

[Gaurav Pathak]

It means I have to write device driver for this module using mmap.