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AM625: tiboot3.bin, tispl.bin and u-boot.img images

Ravikumar Ronad

Intellectual 390 points

Part Number: AM625

Tool/software:

Dear Experts,

I'm working the TI SDK 09_02_01_10 for AM62x Processor & trying to understanding the "tiboot3.bin", "tispl.bin" and "u-boot.img" images so

1. How these images are different than each other ?

2. on which core these images are running ?

3. How the ROM code is gonna to validate the proper x.509 certificate with tiboot3.bin image?

4. How to optimize these images for the custom board booting ?

Thanks in advance.

Regards,
Ravikumar

+1 Aparna Patra 9 months ago

TI__Genius 12980 points

Hi,

1. We need the following images for the boot procedure, they are present in the boot partition directory and are necessary for booting a device.

tiboot3.bin -> contains R5 SPL, TIFS
tispl.bin -> contains kernel related components ATF, OPTEE, A53 SPL
u-boot.img -> Boots U-boot (A53)

2. These run on A53 core.

3. https://dev.ti.com/tirex/explore/node?node=A__ARicYowkHoBWE3T6TCUM2A__AM62-ACADEMY__uiYMDcq__LATEST

4. For custom booting, you will need to modify the DTS file and DDR configuration. Refer here: dev.ti.com/.../node

References: https://software-dl.ti.com/processor-sdk-linux/esd/AM62X/09_00_00_03/exports/docs/linux/Foundational_Components/U-Boot/UG-General-Info.html#image-formats

Regards,
Aparna