[PATCH RFT 0/4] efi: payload: allow extension via fragments

[Ahmad Fatoum <a.fatoum@pengutronix.de>]

CONFIG_EXTERNAL_DTS_FRAGMENTS can't be used with the EFI payload, because
it has no internal DT at build-time and until recently not even a DT at
runtime.

This series adds the necessary bits to have this work the same on
non-EFI-payload platforms.

@Fabian, can you give this a test?

Ahmad Fatoum (4):
  efi: payload: ignore ESP state.dtb if device tree is populated
  kbuild: dtc: introduce empty fallback device tree
  efi: payload: export device tree in barebox-dtb EFI variable
  Documentation: efi: describe device tree handling

 Documentation/boards/efi.rst | 75 ++++++++++++++++++++++++++++++++++--
 Documentation/user/state.rst |  5 +++
 arch/arm/dts/Makefile        |  2 +
 arch/riscv/dts/Makefile      |  2 +
 arch/x86/Kbuild              |  2 +
 arch/x86/dts/Makefile        |  5 +++
 common/fallback.dts          | 10 +++++
 efi/payload/boarddata.c      | 11 ------
 efi/payload/fdt.c            | 53 +++++++++++++++++++++++++
 efi/payload/handover.c       |  2 +
 efi/payload/image.c          |  2 +
 efi/payload/init.c           | 16 ++++++++
 include/efi/payload.h        |  6 +++
 scripts/Makefile.dtbs        | 10 +++++
 14 files changed, 186 insertions(+), 15 deletions(-)
 create mode 100644 arch/x86/dts/Makefile
 create mode 100644 common/fallback.dts

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2.47.3