PROCESSOR-SDK-J721E: How to create tisdk-edgeai-image-j721e-evm.wic.xz with u-boot and kernel that I built

JB LIM

Hello.

I updated u-boot and kernel that I built by the following way, and I checked that it updated successfully.

$ cd ${PSDKL_PATH}
$ make u-boot
$ make linux
### install to SDCard 
$ sudo make u-boot_install
$ sudo make linux_install

BTW how can I create tisdk-edgeai-image-j721e-evm.wic.xz with u-boot and kernel that I built?

I did copy files from board-support/built-images/ to board-support/prebuilt-images/ and rebuild(yocto),

$ ls board-support/built-images/

Image, sysfw.itb, tiboot3.bin, tispl.bin, u-boot.img, k3-fpdlink-imx390-rcm-0-0.dtbo ...

$ cp board-support/built-images/* board-support/prebuilt-images

### Full build from clean @yocto-build/build

$ MACHINE=j721e-evm bitbake -k tisdk-edgeai-image

but u-boot and kernel were not updated-still contain prebuilt image.

U-Boot 2023.04-g71b8c840ca (Nov 27 2023 - 08:55:35 +0000)
......
[ 0.000000] Linux version 6.1.46-g5892b80d6b (oe-user@oe-host) (aarch64-oe-linux-gcc (GCC) 11.4.0, GNU ld (GNU Binutils) 2.38.20220708) #1 SMP PREEMPT Mon Nov 27 16:11:04 UTC 2023

Please check it.

Thanks,

BRs.

over 1 year ago

0 Parth Nagpal over 1 year ago

TI__Mastermind 42135 points

Hi,

This thread has been assigned. Please expect a delay of 1-2 days in response as the assigned engineer is out of office.

Regards,
Parth

0 Fabiana Jaimes over 1 year ago

TI__Mastermind 19680 points

Hi JB,

For building the target edge AI filesystem SDK with Yocto, please follow this guide: https://software-dl.ti.com/jacinto7/esd/processor-sdk-linux-sk-tda4vm/09_02_00/exports/docs/linux/Overview_Building_the_SDK.html

Thank you,

Fabiana

0 Young Han Kim over 1 year ago in reply to Fabiana Jaimes

Prodigy 220 points

Hi Fablana Jalmes,

I think that he already followed by guide. But he want to replace the prebuilt with his own built binary to make the SD card image.

Could you check again his question and the guide?

Thanks you.

YoungHan Kim

0 Fabiana Jaimes over 1 year ago in reply to Young Han Kim

TI__Mastermind 19680 points

Hi,

There is a guide that outlines the steps needed to create your own custom image here: https://software-dl.ti.com/jacinto7/esd/processor-sdk-linux-sk-tda4vm/09_02_00/exports/docs/linux/Overview/Processor_SDK_Linux_create_SD_card.html#create-sd-card-with-custom-images

Thank you,

Fabiana

0 JB LIM over 1 year ago in reply to Fabiana Jaimes

Prodigy 235 points

Hi, Fabiana

My question was how to include my built kernel and uboot when creating the tisdk-edgeai-image-j721e-evm.wic.xz image.
It would be helpful if you could guide me on how to modify the relevant recipe.

Best Regrads,

0 Praveen Rao over 1 year ago in reply to JB LIM

TI__Mastermind 48303 points

Hi JB LIM,

JB LIM said:
My question was how to include my built kernel and uboot when creating the tisdk-edgeai-image-j721e-evm.wic.xz image.

The u-boot and kernel built during the "Yocto build" are independent, and they do not use the binaries built using the "make u-boot" and "make linux" steps.

Note that Yocto's u-boot and kernel recipes may need to be updated so that the required patches are picked up for the yocto build. Please note that this is not trivial.

JB LIM said:
It would be helpful if you could guide me on how to modify the relevant recipe.

We do not advise supporting the modification of the u-boot and kernel by rebuilding Yocto, and TI has not documented and supported the steps for these.

Instead, we suggest you copy the updated u-boot and kernel binaries to the SDcard folders

Thanks.

0 JB LIM over 1 year ago in reply to Praveen Rao

Prodigy 235 points

HI, Praveen Rao

Thanks for your feedback.

I'll follow your suggestion.

BRs.

Processors

Processors forum

PROCESSOR-SDK-J721E: How to create tisdk-edgeai-image-j721e-evm.wic.xz with u-boot and kernel that I built