u-boot.dtsi also possible for dtso?

Frank Wunderlich frank-w at public-files.de
Sat Jan 3 11:55:09 CET 2026


Hi,

i make new attempt to change mediatek boards to OF_UPSTREAM because i found out, that dtbo merging is now possible.

but i faced a problem:

e.g. BPI-R3 has 2 SPI-devices (nand,nor) on same spi switchable via hw. i need both in dts to probe the right
device for linux and to allow install from sdmmc to both of these devices based on hw switch.

currently in uboot the nor is device 0 (unit-address and reg) and nand is 1. this does not work in linux, so i need a
way to overwrite the dtso from linux with the new values in uboot.

for dts there is a way using -u-boot.dtsi files...do they also work for dtso? where do they need to be placed?

regards Frank


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