U-boot config to imx8mn ddr4

[arrivederccimamasita]

Hi Everyone!

I'm struggling with fsl-image-test compliance for the imx8mnevk development board, with the DRAM version of DDR4.

I am having trouble configuring the u-boot for this type of DRAM.

I have managed to do the uuu load thanks to the precompiled bootloader from the demo images. Even so, I would like to be able to do this configuration from the Yocto recipes, could someone give me some clarification.

I'm using kernel version 5.4.70, any roadmap to address this situation?

Thank you very much

[Alejandro_Salas]

Hello @arrivederccimamasita !

Please try:

mkdir imx-yocto-bsp

cd imx-yocto-bsp

repo init -u https://github.com/nxp-imx/imx-manifest -b imx-linux-zeus -m imx-5.4.70-2.3.0.xml

repo sync

Now, for the configuration of DDR4:

DISTRO=fsl-imx-xwayland MACHINE=imx8mnddr4evk source imx-setup-release.sh -b linux

Then you will be able to build the image with bitbake, for example:

bitbake imx-image-full

I hope this can help to you.

Best regards!

[arrivederccimamasita]

Hi @Alejandro_Salas 

Thanks for the response,

Unfortunately, I still face some problems compiling imx-boot due to bad deployment for the DDR firmware by the u-boot-imx. 

/tmp/deploy/images/imx8mnddr4evk/ddr4_imem_1d_201810.bin': No such file or directory

Some idea for what is going on? Is u-boot-imx not compiling any ddr_firmware at all or is only a deployment failure?

Thanks for the response!

[Alejandro_Salas]

Hello @arrivederccimamasita!

Is there some special to do? I would like replicate your issue?

What ubuntu version are you using? 

Best regards!