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I'm using U-Boot on a Raspberry Pi Compute Module. The boot process is : RPi firmware --> U-Boot --> Linux

I'm setting up some things about devices in the config.txt, that is used by the RPi firmware. But when I re-load the DTB with U-Boot, it actually erase the settings done by the RPi firmware, and some devices won't work in Linux.

I boot using the bootz command, and I can't use it without giving it a DTB, or it will crash at booting Linux ...

Do you guys have an idea of how I can boot without reloading a fresh DTB ?

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This is still something under active development and discussion. At this point in time it is likely that https://patchwork.ozlabs.org/patch/693631/ and https://patchwork.ozlabs.org/patch/693632/ will be applied to mainline U-Boot for the next (v2017.01) release. You may wish to apply these locally, test, and if they work reply to the list with your Tested-by tag. Thanks!

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