AM6528: u-boot image

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

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

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

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