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AM6528: u-boot image

Genius 4805 points

Replies: 6

Views: 101

Part Number: AM6528

My customers want to build and use their u-boot image.

I found that:
you will need to copy the all the boot images (MLO and u-boot.img for 32-bit platforms, tiboot3.bin, sysfw.itb, tispl.bin, u-boot.img for K3 based platforms) files to the boot partition.
software-dl.ti.com/.../Foundational_Components_U-Boot.html

Do they need to modify tispl.bin, tiboo3.bin, sysfw.itb if they use their u-boot.img?

Regards, Rei

PROCESSOR-SDK-LINUX-AM65X  06_03_00_106

  • Hi Rei,

    Could you please clarify if this question is regarding the customer using the AM65 on their custom hardware or is it on the TI EVM?

    And is the u-boot version the same as what is on the Processor SDK 6.03?

    Regards

    Karthik

  • Genius 4805 points

    In reply to Karthik Ramanan:

    Hi Karthik,

    Thank you for your reply.

    Assumes TI EVM, customers are just looking at the documents and developers guide, not working EVM. It's not decided which u-boot version to use, however I would recommend that customers use same version as Processor SDK6.3. Ultimately, customers want to run another Linux OS, not TI Linux.

    I think tispl.bin, tiboot3.bin and sysfw.itb are required for boot. Is it necessary for user to change it depending on u-boot?

    Regards, Rei

  • In reply to rei:

    Hello Rei,

    Please refer the u-boot README for am6528:
    https://git.ti.com/cgit/processor-sdk/processor-sdk-u-boot/tree/board/ti/am65x/README?h=processor-sdk-u-boot-2019.01

    tiboot3-bin contains the R5 SPL.
    tispln.bin contains the A72 SPL & also the ATF(Arm Trusted firmware), OPTEE(Trusted OS).
    sysfw.itb is the system firmware binary.

    Now when you modify u-boot if you are modifying common code which is shared by A72 SPL or R5 SPL then
    you will have to replace either tispl.bin or tiboot3.bin otherwise not needed. sysfw.itb you never need to replace as
    one does not build it and only uses the binary directly.

    So it all depends on what code you modify in u-boot.

    Hope this answers your doubts.

    Best Regards,
    Keerthy

  • Genius 4805 points

    In reply to Keerthy J:

    Hi Keerthy,

    Thank you for your reply. I didn't study enough. I could not understand how to update tispl.bin.

    I understand that tiboot3/tispl.bin are updated by "make"(build u-boot).

    Is this correct?

    Regards, Rei

  • In reply to rei:

    Hi Rei,

    >I understand that tiboot3/tispl.bin are updated by "make"(build u-boot).

    Yes, this is correct.

    Regards

    Karthik

  • Genius 4805 points

    In reply to Karthik Ramanan:

    Thank you!

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