IMX8MN :- usb_phy_generic usbphynop1 Error at boot time

milav_soni — Wed, 19 May 2021 07:18:32 GMT

Hello All,

I have one custom board which have "MIMX8MN1CVTIZAA" MPU on it.

I want to flash Image in emmc through USB Download mode.

I have used following BSP Layer from imx yocto project community.

BSP Layers :- branch- > imx-linux-zeus ---> imx-5.4.70-2.3.2.xml

I have build an image with default configuration successfully using yocto toolchain.

I have use following Steps to build an image.

1) $sudo apt-get install gawk wget git-core diffstat unzip texinfo gcc-multilib build-essential chrpath socat libsdl1.2-dev 2) $sudo apt-get install libsdl1.2-dev xterm sed cvs subversion coreutils texi2html docbook-utils python-pysqlite2 help2man make gcc g++ desktop-file-utils libgl1-mesa-dev libglu1-mesa-dev mercurial autoconf automake groff curl lzop asciidoc 3) $repo init -u https://source.codeaurora.org/external/imx/imx-manifest -b imx-linux-zeus -m imx-5.4.70-2.3.2.xml 4) $repo sync 5) $MACHINE=imx8mnddr4evk DISTRO=fsl-imx-wayland source ./imx-setup-release.sh -b imx8mnevk_build 6) $MACHINE=imx8mnddr4evk bitbake fsl-image-validation-imx

After this I have use UUU utility To download kernel image and Bootloader Image in to emmc using following syntax.

uuu -b emmc_all <bootloader> <rootfs.wic>

The image is download successfully in emmc.

But when power on the board after this, my boot log is stuck @ following lines.

[ 2.236560] usb_phy_generic usbphynop1: usbphynop1 supply vcc not found, using dummy regulator

Every time I power on the board, boot message is stuck at above line.

Can you please help me to sort out this error?

Is there any mistake occur in my configuration?

Please find attached boot log messages.

Thank You

Re: IMX8MN :- usb_phy_generic usbphynop1 Error at boot time

AldoG — Tue, 25 May 2021 20:19:58 GMT

Hello,

Your procedure looks fine, the only thing that comes to mind is that you're using the default configuration for the DDR4 EVK, while using your custom hardware.

Did you perform DDR stress test and pass?
Is your custom board similar to our EVK?
If not, did you modify dts for your custom hardware?

Best regards,
Aldo.

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IMX8MN :- usb_phy_generic usbphynop1 Error at boot time

Re: IMX8MN :- usb_phy_generic usbphynop1 Error at boot time