AM4378: Device tree update via TFTP

Nancy Wang

Part Number: AM4378

Hi,

How to load modified dtb file by tftp?

The customer boot from tftp successfully, but the dtb file is still the old one. And the dtb file has been update when booting from SD card.

over 6 years ago

0 RonB over 6 years ago

TI__Mastermind 30876 points

Hi Nancy,

Can you please provide the console log of them booting into U-Boot so that I can see where it is trying to pull the DT file from? Thank you.

0 Nancy Wang over 6 years ago in reply to RonB

TI__Expert 8210 points

Hi,

1273._5563B783_.PNG (902×857)

0 Nancy Wang over 6 years ago in reply to RonB

TI__Expert 8210 points

Hi,

He deleted am437x-gp-gvm.dtb in /tftproot and then copied /ti-sdk/board-support/linux-4.19.59+gitAUTOINC+5f8c1c6121-g5f8c1c6121/arch/arm/boot/dts/am437x-gp-gvm.dtb to /tftproot again. It worked.

He ran ./setup directly before and there was a am437x-gp-gvm.dtb would be generated automatically. How to modify the script to change the default DT file to the new one.

0 RonB over 6 years ago in reply to Nancy Wang

TI__Mastermind 30876 points

He shouldn't need to rerun setup. That is really intended for the initial setup.

However, it is provided as a source file, so he can simply edit it directly to achieve the steps show above, which seem to be correct.

Thanks.

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AM4378: Device tree update via TFTP