[U-Boot] [PATCH 0/5] arm: imx6: Enable Secure Boot (HAB) with SPL Builds

[Sven Ebenfeld]

When trying to build U-Boot for Wandboard with Secure Boot, the build fails
because it tries to compile the dekblob commands within the SPL. The dekblob
command depends on the CAAM driver, which is also not required in the SPL. 
Additionally, this blows the SPL up to a size beyond the limit of 69KiB in
i.MX6DL OCRAM. Therefore I deactivate building the commands during SPL build.

Next I implemented HAB verification before jumping to the loaded image. To
create images that are HAB compatible, I updated the mkimage tool and added some
documentation. At last I try to make the signing process easier as the output of
the mkimage tool will be preserverd within the build dir. The output contains
informationen required to correctly sign HAB images.

Sven Ebenfeld (5):
  arm: imx: remove bmode , hdmidet and dek commands from SPL
  arm: imx: add HAB authentication of image to SPL boot
  tools: mkimage: add firmware-ivt image type for HAB verification
  doc: imx6: add section for secure boot with SPL
  Makefile: preserve output for images that can contain HAB Blocks

 Makefile                              |  15 +++-
 arch/arm/imx-common/Makefile          |   5 ++
 arch/arm/imx-common/hab.c             | 129 ++++++++++++++++++----------------
 arch/arm/imx-common/spl.c             |  25 +++++++
 arch/arm/imx-common/spl_sd.cfg        |  10 +++
 arch/arm/include/asm/imx-common/hab.h |   2 +
 common/image.c                        |   6 ++
 doc/README.imx6                       |  49 +++++++++++++
 include/configs/mx6_common.h          |   3 +
 include/image.h                       |   1 +
 scripts/Makefile.lib                  |   2 +-
 scripts/Makefile.spl                  |   2 +-
 tools/default_image.c                 |  10 ++-
 tools/mkimage.c                       |  32 +++++++++
 14 files changed, 226 insertions(+), 65 deletions(-)

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2.7.4