• David Gibson's avatar
    Move dtc and libfdt sources from arch/powerpc/boot to scripts/dtc · 9fffb55f
    David Gibson authored
    The powerpc kernel always requires an Open Firmware like device tree
    to supply device information.  On systems without OF, this comes from
    a flattened device tree blob.  This blob is usually generated by dtc,
    a tool which compiles a text description of the device tree into the
    flattened format used by the kernel.  Sometimes, the bootwrapper makes
    small changes to the pre-compiled device tree blob (e.g. filling in
    the size of RAM).  To do this it uses the libfdt library.
    Because these are only used on powerpc, the code for both these tools
    is included under arch/powerpc/boot (these were imported and are
    periodically updated from the upstream dtc tree).
    However, the microblaze architecture, currently being prepared for
    merging to mainline also uses dtc to produce device tree blobs.  A few
    other archs have also mentioned some interest in using dtc.
    Therefore, this patch moves dtc and libfdt from arch/powerpc into
    scripts, where it can be used by any architecture.
    The vast bulk of this patch is a literal move, the rest is adjusting
    the various Makefiles to use dtc and libfdt correctly from their new
    Signed-off-by: default avatarDavid Gibson <david@gibson.dropbear.id.au>
    Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
treesource.c 5.79 KB