[U-Boot] [PATCH v3 00/25] Fix and extend i.MX HAB layer

[Bryan O'Donoghue]

v3:
- Only call into ROM if headers are verified. - Bryan

- Print HAB event log if and only if a call was made to HAB
  and a meaningful status code has been obtained. - Breno

v2:
- Fix compilation warnings and errors in SPL highlighted by 
  Breno Matheus Lima

- Add CC: Breno Matheus Lima <brenomatheus at gmail.com> to all patches

v1:
This patchset updates the i.MX HAB layer in u-boot to fix a list of
identified issues and then to add and extend existing functionality.

The first block of patches 0001-0006 deal with fixing existing code,

- Fixes indentation
- Fixes the treatment of input parameters to hab_auth_image.

The second block of patches 0007-0013 are about tidying up the HAB code

- Remove reliance on hard-coding to specific offsets
- IVT header drives locating CSF
- Continue to support existing boards

Patches 0014 onwards extend out the HAB functionality.

- hab_rvt_check_target is a recommended check in the NXP documents to
  perform prior to hab_rvt_authenticate_image
- hab_rvt_failsafe is a useful function to set the board into BootROM
  USB recovery mode.

Bryan O'Donoghue (25):
  arm: imx: hab: Make authenticate_image return int
  arm: imx: hab: Fix authenticate_image result code
  arm: imx: hab: Optimise flow of authenticate_image on is_enabled fail
  arm: imx: hab: Optimise flow of authenticate_image on hab_entry fail
  arm: imx: hab: Move IVT_SIZE to hab.h
  arm: imx: hab: Move CSF_PAD_SIZE to hab.h
  arm: imx: hab: Fix authenticate_image input parameters
  arm: imx: hab: Fix authenticate image lockup on MX7
  arm: imx: hab: Add IVT header definitions
  arm: imx: hab: Add IVT header verification
  arm: imx: hab: Verify IVT self matches calculated address
  arm: imx: hab: Only call ROM once headers are verified
  arm: imx: hab: Print CSF based on IVT descriptor
  arm: imx: hab: Print additional IVT elements during debug
  arm: imx: hab: Define rvt_check_target()
  arm: imx: hab: Implement hab_rvt_check_target
  arm: imx: hab: Add a hab_rvt_check_target to image auth
  arm: imx: hab: Print HAB event log only after calling ROM
  arm: imx: hab: Make internal functions and data static
  arm: imx: hab: Prefix authenticate_image with imx_hab
  arm: imx: hab: Rename is_hab_enabled imx_hab_is_enabled
  arm: imx: hab: Make imx_hab_is_enabled global
  arm: imx: hab: Define rvt_failsafe()
  arm: imx: hab: Implement hab_rvt_failsafe
  arm: imx: hab: Add hab_failsafe console command

 arch/arm/include/asm/mach-imx/hab.h |  46 +++-
 arch/arm/mach-imx/hab.c             | 476 ++++++++++++++++++++++--------------
 arch/arm/mach-imx/spl.c             |  38 ++-
 3 files changed, 369 insertions(+), 191 deletions(-)

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2.7.4