i.MX ProcessorsのトピックRe: I need optee_os support for Maaxboard in yocto project, any help?

I need optee_os support for Maaxboard in yocto project, any help?

gonewithwind-peter — Thu, 27 Feb 2020 21:16:42 GMT

I have successful built yocto project image with the maaxboard company's kernel and u-boot code at here: https://www.element14.com/community/message/288659/l/re-how-can-i-build-an-image-for-the-maaxboard-myself#288659

it seems imx original imx8mqevk board yocto project support optee_os.

why my yocto image and maaxboard company's yocto image with shipment do NOT support optee_os?

do you know what different between original imx8mqevk u-boot code and maaxboard company's uboot code ? or something else differences?

I am trying to find the differences.

can you give me some ideas about it I checked the linux kernel optee config, it's chosen by kernel config. the issue is not in kernel.

ps.

I posted my yocto project tar file at here for your reference:

https://www.element14.com/community/message/288659/l/re-how-can-i-build-an-image-for-the-maaxboard-myself#288659

https://drive.google.com/drive/folders/1hT6AgSL9Y1xAYyshSJcXCPYYbBQZOPrg?usp=sharing

I also asked here:

https://www.element14.com/community/message/288875/l/i-need-opteeos-support-for-maaxboard-in-yocto-project-any-help#2888…

Re: I need optee_os support for Maaxboard in yocto project, any help?

igorpadykov — Fri, 28 Feb 2020 10:58:04 GMT

Hi Peter

one can use steps provided "gonewtinwind Feb 26, 2020 10:04 PM"

https://www.element14.com/community/message/288659/l/re-how-can-i-build-an-image-for-the-maaxboard-myself#288659

and follow sect.5.6.10 OP-TEE enablement attached Yocto Guide

More Linux documentation can be found on
i.MX Software and Development Tools | NXP

Best regards
igor
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Re: I need optee_os support for Maaxboard in yocto project, any help?

gonewithwind-peter — Fri, 28 Feb 2020 14:07:39 GMT

Hi igorpadykov,

Thank you

gonewtinwind is me at there.

I successfully merged Maaxboard company's kernel and uboot code into the yocto project except optee support.

it seems the uboot mkimage from Maaxboard company's u-boot code is different with the original imx8mqevk board mkimage code (imx-boot.bb in yocto). it seems do not include tee.bin in uboot image.

I am trying to understand it and find the differences. I always enable optee in yocto following the imx_yocto_project_user's_guide sect.5.6.10

Re: I need optee_os support for Maaxboard in yocto project, any help?

gonewithwind-peter — Fri, 28 Feb 2020 16:01:29 GMT

done!

because the maaxboard modified the soc.mk file at u-boot/tools/imx-boot/iMX8M/soc.mk(yocto at imx-mkimage/imx-boot ) it can not support optee before because of no yocto project. I change back, so It supports now.

I share the yocto project tar file here for reference.

maaxboard-optee - Google Drive