search

bootlin / buildroot-external-st

External Buildroot tree for STMicroelectronics boards configurations
48 stars 26 forks source link

Custom DTS when building OPTEE-OS example #27

Closed x3ccd4828 closed 1 year ago

x3ccd4828 commented 1 year ago

Would you be able to add an example that uses a custom DTS file for building OPTEE-OS?

Currently, OPTEE-OS doesn't support custom dts path nor do I see a way to load custom device trees.

tpetazzoni commented 1 year ago

That's a very good point indeed. We'll add that to our TODO-list. We mainly need to figure out how to convince the OPTEE-OS build system to use an externally provided Device Tree file. Once that's figured out, integrating that in the Buildroot build process should not be too difficult.

x3ccd4828 commented 1 year ago

I tried looking at the Makefile.sdk from STM found in they yocto dev package (stm32mp1-openstlinux-5.15-yocto-kirkstone-mp1-v22.06.15/sources/arm-ostl-linux-gnueabi/optee-os-stm32mp-3.16.0-stm32mp1-r1-r0). But it wasn't that straightforward. I will keep digging in parallel.

DerArtem commented 1 year ago

Any news on this? Another option would be to specify an a path on the filesystem with custom op-tee sources. But this also does not work right now.

kmaincent commented 1 year ago

Hello, this feature will be added in the next 2022.02.7 release. FYI: The solution is to use the CFG_EMBED_DTB_SOURCE_FILE configure option.