TDA4VH-Q1: EMMC Boot to Uboot then Load Kernel Image from USB Mass Storage to Boot Kernel

Kevin Peng

Part Number: TDA4VH-Q1

Hi TI Experts,

My customer wants to use EMMC boot to boot Uboot, then load the kernel image from the USB mass storage to boot kernel.

The detailed procedure is shown below.

Boot from eMMC to u-boot
Choose one of two possible locations for the root filesystem and kernel to be loaded from:
1. eMMC
2. USB drive

May I know the feasibility to boot according to this procedure?

Thanks a lot!

Kevin

+1 Diwakar Dhyani over 1 year ago

Hi Kevin

Yes the above approach is feasible.

What is the USB mode they are using(HOST/peripheral/OTG).

They need to enable the USB mass storage along with the host controller in the uboot in order to read the kernel, dtb , filesystem.

after that you can modify the bootcmd to boot from the USB instead of emmc.

Regards
Diwakar

0 Daniel Braunwarth over 1 year ago

Hi Kevin

Hi Diwakar

I'm "the customer. :)

We are planning to use host mode for now.

Thanks for your help!

Daniel

+1 Diwakar Dhyani over 1 year ago in reply to Daniel Braunwarth

Hi Daniel

You can follow this FAQ

Regards
Diwakar

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