Hi,
Hi, we are working with IMX.6 Sololite processor (MCIMX6L3DVN10AA N20G GPU, no EPDC) and facing several memory access failures on linux-android kitkat. we found with same hardware & software design working fine on MCIMX6L8DVN10AB N20G GPU, EPDC.
Can you please suggest any DDR timing initialisations missing in MCIMX6L3DVN10AA part and provide any kind of experiments to carry out.
Thanks,
Rammohan
Original Attachment has been moved to: hanglog.txt.zip
Hi,
You can check the calibration process.
https://community.freescale.com/docs/DOC-96412
Thanks
Saurabh
Hi Saurabh,
Thanks for your prompt reply. we do regular DDR stress tests in our R&D and we have carried same with case also successfully.
this issue we are facing specifically on the part (MCIMX6L3DVN10AA N20G GPU, no EPDC), we would like to know any specific changes on this processor part.
Please help us on how to deal this specific hardware related software issue.
Thanks,
Rammohan
Hi,
we are using DDR MT42L256M32D2 - 1GB/512MB LPDDR2, 168 pin micron with MCIMX6L8DVN & MCIMX6L3DVN imx6 sololite processors.
None of these part able to boot up with linux(ver. 3.05) + android(Kitkat) and all the time we are facing unexpected memory failures.
Can you please suggest any memory timing tweaks needed for this combination?
Thanks,
Rammohan
Hi,
I able to get over the memory failures by putting the target in performance mode..
echo performance > /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor
this clearly indicates that processor clk frequencies are not in sync with DDR timings.
Can any one please suggest desired changes for DDR2 MT42L256M32D2 - 1GB/512MB LPDDR2, 168 pin MICRON with MCIMX6L8DVN & MCIMX6L3DVN imx6 sololite processors.
Thanks,
Rammohan