[U-Boot] [PATCH v2 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
information required to correctly sign HAB images.

Cc: sbabic at denx.de

v2 Changes:
 - Repair build failures in many SPLs due to incorrect variable assignment.
 - Repair mx31 and mx27 builds without imx-common libs (nothing is built there
   for them.

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

 .gitignore                            |   2 +-
 Makefile                              |  15 +++-
 arch/arm/Makefile                     |   2 +-
 arch/arm/imx-common/Makefile          |   6 ++
 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                  |   3 +-
 scripts/Makefile.spl                  |   4 +-
 tools/default_image.c                 |  10 ++-
 tools/mkimage.c                       |  32 +++++++++
 16 files changed, 232 insertions(+), 67 deletions(-)

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2.7.4