Booting PPC Linux

Renaud Barbier renaud.barbier at
Thu Mar 1 14:41:35 EST 2012

I have a uImage + dtb that use to boot on a MPC8544-like system
a few months ago.

After rebasing my code, it did not work.

I notice that in arch/ppc/lib/ppclinux.c the kernel is now called
with the device tree as a parameter.

After investigation, I copied the device tree to within 8MB of the
kernel entry point (0x0). It booted.

Is the DTB relocation a missing step?
Otherwise any suggestions on what I should look at (different kernel image)?

I have already been through the Barebox code and U-boot code (U-boot
does relocate the device tree).


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