Hi Rob and others, for couple of years already u-boot is using config node in root DT for u-boot configuration. Here is one example in u-boot source code. https://gitlab.denx.de/u-boot/u-boot/-/blob/master/arch/arm/dts/exynos5250-spring.dts#L47 And here is dt binding description https://gitlab.denx.de/u-boot/u-boot/-/blob/master/doc/device-tree-bindings/config.txt I was checking dt binding specification and there no such a thing described there. It means I expect this is more adhoc u-boot solution. We have reached the point where could be beneficial to put some u-boot specific configurations to DT. Actually I have done similar thing some time ago too by using chosen node and add xilinx specific property there to point to eeprom. https://gitlab.denx.de/u-boot/u-boot/-/blob/master/arch/arm/dts/zynqmp-zcu102-revA.dts#L39 I think it is a time to discuss it and do it properly. First of all my question is where we could list SW prefixes to make sure that they are listed and everybody is aware about it. We have vendor-prefixes and we should have a way to record also prefixes for sw projects. U-Boot is using u-boot. Xen has file in the kernel with using xen prefix. At least these two should be listed. Next my question is what is the recommended way to pass sw specific parameters via DT? I think using chosen node is more appropriate then adhoc config node. Or is there a better way how this should be done? Thanks, Michal
