[PATCH 2/5] bootwrapper: Add CONFIG_DEVICE_TREE
paulus at samba.org
Thu Apr 12 14:42:51 EST 2007
Scott Wood writes:
> This provides a way to tell the bootwrapper makefile which device tree to
> include by default. The wrapper can still be invoked standalone to wrap
> with a different device tree without reconfiguring the kernel, if that is
> +config DEVICE_TREE
> + string "Static device tree source file"
> + help
> + This specifies the device tree source (.dts) file to be
> + compiled and included when building the bootwrapper.
> + If a relative filename is given, then it will be relative
> + to arch/powerpc/boot/dts.
> + This is required when building a cuImage target for an
> + older U-Boot, which cannot pass a device tree itself.
> + Such a kernel will not work with a newer U-Boot that
> + tries to pass a device tree (unless you tell it not to).
> + If your U-Boot does not mention a device tree in
> + "help bootm", then use the cuImage target and specify
> + a device tree here. Otherwise, use the uImage target.
Hmmm, I'm not sure that I want to be asked about CONFIG_DEVICE_TREE on
*all* powerpc platforms... Surely this option should depend on
something that says we're including support for a uBoot-able platform?
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