[U-Boot] Where to put a large bootloader-supplied device tree on ARM ?

Dear Albert ARIBAUD,

In message <20120712233801.0411daa7@lilith> you wrote:

If I'm not mistaken, yes U-Boot loads itself as high as it can, and I don't
know about the FDT, but no, U-Boot does not "like" to load initrd "just
below that": it loads initrd where the boot commands tell it to, and the
boot commands are written by board developers. Nothing in U-Boot forces
initrd to be loaded as high as possible.

That leaves the question of the FDT, though -- I'm not familiar enough
with it (yet) to tell if it is always located just under U-Boot or if
its placement is controllable by board commands.

You can always just set the "fdt_high" and "initrd_high" evironment
variables to restrict the positioning of initrd and FDT in RAM; see
the README for details.

Best regards,

Wolfgang Denk

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