[PATCH v4 0/4] sunxi: TOC0 image type support

[Samuel Holland]

This series adds support for the TOC0 image format used by the Allwinner
secure boot ROM (SBROM). This series has been tested on the following
SoCs/boards, with the eFuse burnt to enable secure mode:
 - A50: Ainol Q88 Tablet
 - A64: Pine A64 Plus
 - H5: Orange Pi Zero Plus
 - H6: Pine H64 Model B
 - H616: Orange Pi Zero 2

This time I also tested it on boards that are not switched to secure
mode (with A64, H3, and H5).

Due to both series changing Makefile.spl, the last patch depends on:
https://patchwork.ozlabs.org/project/uboot/list/?series=267136

Since this series no longer selects TOOLS_LIBCRYPTO anywhere, building
certain platforms/options may fail with an error like the following if
TOOLS_LIBCRYPTO is disabled:

    MKIMAGE spl/sunxi-spl.bin
  ./tools/mkimage: unsupported type Allwinner TOC0 Boot Image
  make[1]: *** [scripts/Makefile.spl:426: spl/sunxi-spl.bin] Error 1
  make: *** [Makefile:1982: spl/u-boot-spl] Error 2

Hopefully this is clear enough.

Changes in v4:
 - Do not select TOOLS_LIBCRYPTO anywhere

Changes in v3:
 - Selected TOOLS_LIBCRYPTO on all platforms that use kwbimage (as best
   as I can tell, using the suggestions from Pali Rohár)
 - Removed TOOLS_LIBCRYPTO selection for sunxi, since most boards
   do not need it
 - Added __packed to all new "ABI" structs
 - Added entry to MAINTAINERS for sunxi tools
 - Fixed offset of magic passed to memcmp
 - Refactored functions to not return pointers (fixes ambiguous NULL)

Changes in v2:
 - Refactored the first patch on top of TOOLS_LIBCRYPTO
 - Moved certificate and key item structures out of sunxi_image.h
 - Renamed "main" and "item" variables for clarity
 - Improved error messages, and added a hint about key generation
 - Added a comment explaining the purpose of the various key files
 - Mentioned testing this code on A50 in the commit message
 - Moved SPL header signature checks out of sunxi_image.h
 - Refactored SPL header signature checks to use fewer casts
 - Rebase on top of Icenowy's RISC-V support series
 - Rename Kconfig symbols to include the full image type name

Samuel Holland (4):
  tools: Separate image types which depend on OpenSSL
  tools: mkimage: Add Allwinner TOC0 support
  sunxi: Support SPL in both eGON and TOC0 images
  sunxi: Support building a SPL as a TOC0 image

 MAINTAINERS                           |   1 +
 arch/arm/include/asm/arch-sunxi/spl.h |   2 -
 arch/arm/mach-sunxi/Kconfig           |   2 +
 arch/arm/mach-sunxi/board.c           |  34 +-
 board/sunxi/Kconfig                   |  24 +
 common/image.c                        |   1 +
 include/image.h                       |   1 +
 include/sunxi_image.h                 |  37 ++
 scripts/Makefile.spl                  |   5 +-
 scripts/config_whitelist.txt          |   1 -
 tools/Makefile                        |  20 +-
 tools/mxsimage.c                      |   3 -
 tools/sunxi_toc0.c                    | 907 ++++++++++++++++++++++++++
 13 files changed, 1011 insertions(+), 27 deletions(-)
 create mode 100644 board/sunxi/Kconfig
 create mode 100644 tools/sunxi_toc0.c

-- 
2.32.0