[U-Boot] [PATCH 0/5] uboot overlays and FIT image

Simon Glass sjg at chromium.org
Fri Jul 28 18:48:22 UTC 2017


Hi Pantelis,

On 30 June 2017 at 10:22, Pantelis Antoniou
<pantelis.antoniou at konsulko.com> wrote:
> This patch allows uboot to handle overlays in a manner that uses
> a base DT blob and an arbitrary number of DT overlays blobs.
>
> It is intended to be used with FIT images since handling a multitude
> of device tree blobs manually is a chore.
>
> The first 3 patches have already been submitted to DTC for review, and
> provide the plumbing in libfdt.
>
> The next patch adds a unit test for a stacked overlay (in which an
> overlay refers to a symbol contained in a previously applied overlay).
>
> The last patch contains the FIT FDT blob generation logic as well
> as documentation about how it all works.
>
> The patchset is available at
>
>         https://github.com/pantoniou/u-boot/tree/uboot-overlays
>
> and is against mainline u-boot as pulled today, 30/6/2017.
>
> Pantelis Antoniou (5):
>   libfdt.h: Introduce FDT_PATH_MAX
>   libfdt_env.h: Add <malloc.h> in libfdt environment
>   fdt: Allow stacked overlays phandle references
>   test: overlay: Add unit test for stacked overlay
>   fit: Introduce methods for applying overlays on fit-load
>
>  common/image-fdt.c                           |   7 +-
>  common/image-fit.c                           | 215 ++++++++++++++++++++++++--
>  doc/uImage.FIT/command_syntax_extensions.txt |  12 +-
>  doc/uImage.FIT/overlay-fdt-boot.txt          | 221 +++++++++++++++++++++++++++
>  doc/uImage.FIT/source_file_format.txt        |   6 +-
>  include/image.h                              |  10 ++
>  include/libfdt_env.h                         |   1 +
>  lib/libfdt/fdt_overlay.c                     | 148 +++++++++++++++++-
>  lib/libfdt/libfdt.h                          |   3 +
>  test/overlay/Makefile                        |   1 +
>  test/overlay/cmd_ut_overlay.c                |  34 ++++-
>  test/overlay/test-fdt-overlay-stacked.dts    |  21 +++
>  12 files changed, 659 insertions(+), 20 deletions(-)
>  create mode 100644 doc/uImage.FIT/overlay-fdt-boot.txt
>  create mode 100644 test/overlay/test-fdt-overlay-stacked.dts

Will there be a v2 of this series? I'm not sure whether the plan is to
apply it in the current merge window or not?

Regards,
Simon


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