Comment 5 for bug 2037537

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Isaac True (itrue) wrote (last edit ):

Hi @juliank,

This is mostly coming from a customer project where we need to support both U-Boot UEFI Secure Boot and standard U-Boot FIT images. As the device tree is required for creating the FIT image, we need to ship the .dtb file with the kernel. The UEFI use case does not necessarily need the .dtb file as the device tree can also be provided by ATF, but for the sake of developer and user friendliness, we are using the .dtb that ships with the each kernel release and loading it in U-Boot before handing off to UEFI/Grub. (side note, this .dtb will be bundled in a signed FIT image at a later date to increase security)