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Adibbi's avatar
Adibbi
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3 years ago

CPU1 not found on 5CSEBA2U23C6N (should be dual core)

Hi,

our Cyclone V - 5CSEBA2U23C6N fails to de-assert the second cpu core from reset. During boot Linux reports the message "CPU1: failed to come online". Software on the SD card is generated by Yocto using the official meta-intel-fpga layer.

The same SD card put in an equivalent board with 5CSEMA5F31I7N successfully activates the second core. The document below reports that the second core is present for both Cyclone V boards we have.

Document CV-51001 | 2018.05.07

It's guaranteed the presence of the second core ? Indeed if we read the hpsinfo register in one board we get 0x3 and in the other, which has the described problem, 0x2. This seems to demonstrate that the cpu is single core.

Do we have a batch of single core Cyclone ? If not, how can we activate the second core ? Thanks.

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  • tehjingy_Altera's avatar
    tehjingy_Altera
    Icon for Regular Contributor rankRegular Contributor
    3 years ago

    Hi Adibbi


    Sorry but I could not check the history of the batch.

    Could you try consulting the distributor for this?


    Regards

    Jingyang, Teh


  • Adibbi's avatar
    Adibbi
    Icon for New Contributor rankNew Contributor
    3 years ago

    Hi,

    we are waiting for response from our distributors.

    I will keep you updated.

    Regards,

  • tehjingy_Altera's avatar
    tehjingy_Altera
    Icon for Regular Contributor rankRegular Contributor
    3 years ago

    Hi Adibbi


    Any update from the sale distributor?

    Is it possible to close this case and open a new case when there is a reply from them?


    Regards

    Jingyang, Teh


  • tehjingy_Altera's avatar
    tehjingy_Altera
    Icon for Regular Contributor rankRegular Contributor
    3 years ago

    Hi


    Since there are no feedback for this thread, I shall set this thread to close pending. Please login to ‘https://supporttickets.intel.com’, view details of the desire request, and post a feed/response within the next 15 days to allow me to continue to support you. After 15 days, this thread will be transitioned to community support. The community users will be able to help you on your follow-up questions.


    If you happened to close this thread you might receive a survey. If you think you would rank your support experience less than 10 out of 10, please allow me to correct it before closing or if the problem can’t be corrected, please let me know the cause so that I may improve your future service experience.



    Regards

    Jingyang, Teh


  • Adibbi's avatar
    Adibbi
    Icon for New Contributor rankNew Contributor
    3 years ago

    Hi,

    we have ordered socs that belong to another batch. I will inform you when we have more information.

    Regards,