embedding dtb file into kernel

I'm having trouble figuring out how to embed a dtb file into my kernel. I'm thinking that there should be a standard, architecture independent facility for this akin to initramfs, yes?

Could someone please either point me to the standard facility, relevant doc, a currently building board that uses the standard facility, or outline what needs to be done to do this with a new board?

If it matters, (I can't think why it would), I'm working with powerpc on a 3.10 kernel. But if there are better facilities in other versions I'd appreciate hearing about that too.

Thank you in advance.

--rich

Hi,

The device tree (DTB file) is not supposed to be embedded into the kernel but loaded independently by the boot loader (for instance Uboot). Then a pointer to the device tree is handed over by Uboot to the kernel when calling the _start function.

You also have in arch/powerpc/boot/ a facility called cuboot which allows to create a ppcboot image with kernel and device tree bound together.

Christophe

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Hi Richard,

Maybe it is worth to take a look at the fitImage, which can embed pretty much anything (including DTB).

Best regards,
Stefano Babic

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