TDA4VM: SPL cannot load U-Boot in eMMC

jianyu huo

Part Number: TDA4VM

Hi experts,

I'm working on a custom board of TDA4VM and the boot flow is SBL -> SPL(A72) -> U-Boot - > Linux where SBL & SPL are in OSPI Flash and U-Boot & Linux are in SD card.

I try to make SPL load image of U-Boot from eMMC instead of SD card but it failed. I think eMMC is similar to SD card since both of them are using SDHCI. So what's the reason.

Below is the log & diff.

over 4 years ago

0 Keerthy J over 4 years ago

TI__Guru**** 166310 points

Hi,

Have you made sure that you have burnt the u-boot.img in eMMC? Can you first try loading all the images R5 SPL, A72 SPL, A72 uboot from eMMC?
Does that work on your custom board?

- Keerthy

0 jianyu huo over 4 years ago

Prodigy 175 points

Hi Keerthy,

What do you mean by "loading all the images R5 SPL, A72 SPL, A72 uboot from eMMC"? Try to boot from eMMC with SPL?

By the way, I found I made a mistake for above description, the boot flow should be SBL -> SPL(A72) -> U-Boot - > Linux.

Thanks

0 Keerthy J over 4 years ago in reply to jianyu huo

TI__Guru**** 166310 points

Hi,

That is the basic eMMC boot on how we offer booting from eMMC. I.e following the instructions:

link: https://software-dl.ti.com/jacinto7/esd/processor-sdk-linux-jacinto7/07_02_00_07/exports/docs/linux/Foundational_Components/U-Boot/UG-Memory.html

3.1.1.5.7. Booting tiboot3.bin, tispl.bin and u-boot.img from eMMC boot partition (For K3 class of SoCs)

Check the above section & try if eMMC boot is functional at your side.

Best Regards,
Keerthy

+1 jianyu huo over 4 years ago

Prodigy 175 points

The problem is resolved after I put U-Boot into OSPI Flash.

Thanks

Processors

Processors forum

TDA4VM: SPL cannot load U-Boot in eMMC

3.1.1.5.7. Booting tiboot3.bin, tispl.bin and u-boot.img from eMMC boot partition (For K3 class of SoCs)