Yocto 5.15.32 ecspi slave mode

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Yocto 5.15.32 ecspi slave mode

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joshua_jhan
Contributor III

Hi All,

I try to use ecspi slave mode on iMX8M Mini / Yocto 5.15.32

but when I change the dtb file "imx8mm-evk-ecspi-slave.dtb" and following below step to setup, the spidev node is not generated

root@imx8mmevk:~# uname -a
Linux imx8mmevk 5.15.32-lts-next+gfa6c3168595c #1 SMP PREEMPT Tue Jun 7 02:34:46 UTC 2022 aarch64 aarch64 aarch64 GNU/Linux
root@imx8mmevk:~# ls /dev/spidev1.0
ls: cannot access '/dev/spidev1.0': No such file or directory
root@imx8mmevk:~# echo spidev > /sys/class/spi_slave/spi1/slave
root@imx8mmevk:~# ls /dev/spidev1.0
ls: cannot access '/dev/spidev1.0': No such file or directory

so, how can I generate the ecspi slave node or used it

Thanks

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Dhruvit
NXP TechSupport
NXP TechSupport
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lljwork2021
Contributor I

I met the same problem, and it was successful in 4.14, but failed in 5.15. May I ask how to solve it?

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