imx8mm-evk question: Direct firmware load for imx/sdma/sdma-imx7d.bin failed with error -2

[bitterblossom5486]

I generated an image: imx-robot-core-imx8mmevk-20211201053319.rootfs.tar.bz2 according to this tutorial: https://community.nxp.com/t5/i-MX-Processors-Knowledge-Base/i-MX-%E6%9C%BA%E5%99%A8%E4%BA%BA%E5%B9%B..., then I tried to burn it into the board via the command below:

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[ 31.747653] 002: VSD_3V3: disabling
[ 62.467759] 002: cfg80211: failed to load regulatory.db
[ 62.467769] 000: imx-sdma 302c0000.dma-controller: external firmware not found, using ROM firmware
[ 62.467790] 000: imx-sdma 30bd0000.dma-controller: external firmware not found, using ROM firmware
[ 62.467848] 002: imx-sdma 302b0000.dma-controller: Direct firmware load for imx/sdma/sdma-imx7d.bin failed with error -2
[ 62.467853] 002: imx-sdma 302b0000.dma-controller: Falling back to sysfs fallback for: imx/sdma/sdma-imx7d.bin

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Could anyone provide some clues or solutions to me about this situation? Thanks a lot!

[igorpadykov · Accepted solution]

Hi Jiayu

one can look on similar case on

https://community.nxp.com/t5/i-MX-Processors/IMX8MM-EVK-kernel-hang-on-imx-yocto-L5-4-24-2-1-0/td-p/...

Best regards
igor

[bitterblossom5486]

It works! I modified the imx-sdma driver as a kernel module with the 'make menuconfig' command. Thanks for your help!

[ramyashree1]

Hi @bitterblossom5486 

Can you please give a quick steps , how did you modified ?

regards

ramya