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

Simon Glass
2017-07-28T18:48:22Z

Hi Pantelis,

On 30 June 2017 at 10:22, Pantelis Antoniou
<pantelis.antoniou@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