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RTOS/PROCESSOR-SDK-DRA7X: When M4 is loaded from IPL, Camera 2 /ADV2 is not functional

Raghu Kadari
Expert 1380 points
Part Number: PROCESSOR-SDK-DRA7X

Tool/software: TI-RTOS

Hi Shravan,

After testing M4 from IPL boot for ADV HIGH variant we see that ADV2 is not functional and any I2C read for ADV 2 sensor is failing.

Observation: If we load only M4 and remove Applinux then we see ADV2 working properly. and after this if we manuallly load applinux

Frames are freezed and we do not see any activity on Camera 2.

Regards,

Raghu

  • 0
    TI__Genius 14650 points

    Hi Raghu,

    Are you able to get the M4 use-case running without jumping to kernel (i.e halt at IPL).

    If yes, then there is a conflict in the kernel which you must sort. This usually involves a change in DTB to which the late-attach attributes must be added.

    If no, then there are peripherals being used on the IPU which aren't clocked (and need to be done by the IPL). This is done by the function spl_enable_clocks_for_vsdk, in u-boot. You can also step through your IPU code in CCS to see where the failure occurs.

    Regards

    Shravan

  • 0 in reply to Shravan Karthik
    Expert 1380 points

    Hi Shravan,

    Kernel was disabling ADV2 pin when it is coming up, now issue is resolved.

    Thank you for your time

    Regards,

    Raghu