From mboxrd@z Thu Jan  1 00:00:00 1970
From: swarren@wwwdotorg.org (Stephen Warren)
Date: Wed, 31 Jul 2013 13:57:37 -0600
Subject: Defining schemas for Device Tree
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To: linux-arm-kernel@lists.infradead.org
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On 07/30/2013 05:23 PM, jonsmirl at gmail.com wrote:
...
> Uboot could be an issue but I don't think they are actually doing
> anything with FDTs yet, they are just talking about doing it.

A couple U-Boot platforms (Tegra, Exynos) actually use DT to
parameterize U-Boot itself, just like the kernel uses it, although:

* often the bindings used there are not the "real" bindings defined in
the kernel:-(

* They use a DTB embedded into the U-Boot binary, which is a different
DTB to that passed to the kernel, which at least in the Tegra case is
always loaded from disk e.g. from /boot, just like zImage is.

U-Boot certainly passes DTs to the kernel, and performs some limited
modification on it such as setting the kernel cmdline, memory size, etc.