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RTC reset after power cycle - DM368 IPNC - Version 4.0

Dear All,

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I already post my question on Embedded Software/Linux section without success.

Admins, please excuse if it is redundant.

I hope to find more help in this section of the E2E forum which is more dedicated to DM368 problem.

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I noticed that on my DM368 IPNC with SW release 4.0 and after setting clock time in the web pages, the date goes back to the beginning of time (1-1-1970) avec reset/power cycle.

I suspected at first a HW problem, but my cam works fine with 2.6.0 SW release.

So i dug a little deeper and found that 2.6.37 kernel provided with 4.0 release do not integrate RTC support by default

-> hwclock try to access to /dev/mis/rtc. /dev/mis/rtc symlink point to /dev/rtc. /dev/rtc and /dev/rtc0 symlinks points to eachother

-> In makemenu config, Real Time Clock menu is not set as Y 

-> If I set Real Time Clock as Y, I can not see  TI DaVinci RTC on *** on-CPU RTC drivers *** menu. TI DaVinci RTC depends on ARCH_DAVINCI_DM365 which is however set in davinci_dm368_ipnc_defconfig_nand config file

Is there anybody that can tell me how to make work RTC with this Kernel. 

Does anyone have this problem too ?

Any idea and guidelines would be really appreciated to make the RTC works i'm a quite lost and not an expert at all

Thanks for advance for your help

Best regards

ADB