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PROCESSOR-SDK-DRA8X-TDA4X: Where could I find the ospi.rootfs which is mentioned in PSDKLA document uboot section?

Renxuan Zhang
Prodigy 40 points

Part Number: PROCESSOR-SDK-DRA8X-TDA4X

In PSDKLA documents software-dl.ti.com/.../Foundational_Components_U-Boot.html

It mentions a file "ospi.rootfs". However I could not find a way to get or build this from the sdk. Where could I find it?

I am trying OSPI boot to linux following this guide but blocked at this step. Thanks.

  • 0
    TI__Guru**** 162770 points

    Hi Renxuan Zhang,

    Currently ospi.rootfs is more of a reserved area around ~50MB. Flash is 64MB
    and as you see in the diagram there are multiple reserved sections.

    Now the rootfs also will have to host the kernel Image which itself is aorund 16MB
    & there are dtbs to be hosted as well. There will be merely 30MB left for the filesystem.
    Is your use case to boot entirely from OSPI?

    The recommended option is to boot from OSPI and rootfs on eMMC.

    Can you let me know if OSPI + EMMC is workable for you?

    Best Regards,
    Keerthy

  • 0 in reply to Keerthy J
    Prodigy 40 points

    Hi Keerthy,

    OSPI + eMMC is my use case.

    This section of document makes me feel like a minimal system bootable entirely from OSPI is already there in the sdk so that I can play with it. Looks like it is not the case.

    Nevermind. If it is not there, it is fine. Then I would focus on the OSPI+eMMC strategy. Thanks.