imx8mp TYPEC_EN

[qwerqq]

I am using imx8mp and the linux version is 5.4.70. At present, the TYPEC_EN B pin has been replaced by SAI3_RXC as this TYPEC_EN in my homemade baseboard, so I cannot perform uuu burning now. How should I modify it to fit my baseboard?

[Zhiming_Liu]

Have you replaced gpio iomux in uboot?

[qwerqq]

yes，I made the following changes in the two files board/forlinx/ok8mp-c/ok8mp-c.c and board/freescale/imx8mp_evk/imx8mp_evk.c in uboot:I wonder if there's something I haven't changed？Image_20231116162246.png

[Zhiming_Liu]

Hi @qwerqq 

Have you checked the hardware status about TYPC_EN?

Is there any log when you failing to use uuu to download?

[qwerqq]

We have changed the scheme and no longer use this pin. I have another question. Now I use spi to transfer all the way to can, but now the device node of can will change every time I start, is there any way to fix the device node? Thank you!90eecd8c-04c9-44ab-986e-ccda5f6eb408.jpg