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Hi,
TI support team.
Tool LINK: https://www.ti.com/lit/pdf/spracu8
From chapter-3 <Software Considerations>, Learned that two ways to update the software<updating U-boot & updating RTOS PDK>.
step 1. Do both U-boot and RTOS changes need to be updated to the code or can only one be updated to meet the requirements?
My understanding is that updating one of the two-way can achive the goal. right?. If it is, We choose to update U-boot code.
step 2. Rebuild the U-Boot source code,
Target Images:
Copy the above four images to the boot partition of an SD card and boot.
Which file <tiboot3.bin> or <tiboot3> do DDR Config ?
Conclusion:
Please help me to check whether the previous two steps could meet the requirements for customizing DDR configurations(such as Disable CA ODT in worksheet IOControl) ?
I will append some specific changes to this Thread for further modification to meet customized DDR config. Please help to check !
Best Rgards
Murphy
Which file <tiboot3.bin> or <tiboot3> do DDR Config ?
tiboot3.bin that contains R5F SPL does the DDR config.
- Keerthy
Hi Keerthy,
Thank you for your reply.
What i think is just need to replace the tiboot3.bin file of the SD card in boot partition, Is that enough meet the customized DDR configuration?
Of course, Steps are as follows.
1. Replacing the existing file <k3-j721e-ddr-evm-lp4-4266.dtsi>
2. Rebuild the U-Boot source code
3. Copy the tiboot3.bin file from corresponding output file directory: <output directory>/r5
Whether the previous three steps are correct or not (Just for soluation-1 <updating U-Boot>) ?
Regards,
Murphy
Hi Murphy,
My assumption is that you are using either TDA4VM or DRA829.
If the total LPDDR4 memory you have available on your board design is the same as the TDA4VM EVM (4GB), then replacing the DTSI file should be the only software modification you need to make (related to DDR).
In that case, you are correct that you would need to 1) replace DTSI file in u-boot source; 2) re-build source; 3) copy new tiboot3.bin file to SD card
Regards,
Kevin