[PATCH v4] FIT support

[Sascha Hauer]

This is the fourth version of the FIT image support. Changes to last series
include:

Changes since v3:
- Add option to force booting signed images
- Add reference to U-Boot in RSA support commit message and file
- Add reference to U-Boot in FIT image support
- Write some more Kconfig doc

Changes since v2:
- Integrate FIT support more deeply into bootm remove complexity
  from the architecture handlers
- Cleanup bootm support
- Add support for configuration names as suggested by Yegor Yefremov
- Allow to boot unsigned FIT images

----------------------------------------------------------------
Jan Luebbe (1):
      bootm: add initial FIT support

Sascha Hauer (13):
      ARM: zImage: add missing free() in appended device tree code
      bootm: Do not call uimage_close twice
      bootm: introduce bootm_get_os_size
      bootm: use names instead of numbers for image parts
      ARM: bootm: Use kernel handler to start barebox image
      bootm: Push dryrun to handlers
      bootm: move initrd code together
      bootm: move oftree code together
      bootm: Initialize bootm_data defaults in single place
      crypto: add digest_alloc_by_algo()
      crypto: add RSA support
      bootm: make verifying/hashing configurable
      bootm: Add option to force booting signed images

 arch/arm/crypto/sha1_glue.c        |   1 +
 arch/arm/crypto/sha256_glue.c      |   2 +
 arch/arm/lib/bootm.c               |  52 ++--
 arch/arm/mach-omap/omap_generic.c  |   5 +
 arch/blackfin/lib/blackfin_linux.c |   3 +
 arch/efi/efi/efi-image.c           |   9 +-
 arch/mips/lib/bootm.c              |   5 +
 arch/nios2/lib/bootm.c             |   3 +
 arch/ppc/lib/ppclinux.c            |   3 +
 commands/Kconfig                   |  25 ++
 commands/boot.c                    |  14 +-
 commands/bootm.c                   |  46 +--
 common/Kconfig                     |   9 +
 common/Makefile                    |   1 +
 common/bootm.c                     | 482 ++++++++++++++++++------------
 common/image-fit.c                 | 584 +++++++++++++++++++++++++++++++++++++
 crypto/Kconfig                     |   3 +
 crypto/Makefile                    |   1 +
 crypto/digest.c                    |  43 ++-
 crypto/md5.c                       |   1 +
 crypto/rsa.c                       | 422 +++++++++++++++++++++++++++
 crypto/sha1.c                      |   1 +
 crypto/sha2.c                      |   2 +
 crypto/sha4.c                      |   2 +
 include/asm-generic/errno.h        |   5 +
 include/boot.h                     |  28 +-
 include/digest.h                   |  23 ++
 include/image-fit.h                |  45 +++
 include/rsa.h                      |  54 ++++
 29 files changed, 1599 insertions(+), 275 deletions(-)
 create mode 100644 common/image-fit.c
 create mode 100644 crypto/rsa.c
 create mode 100644 include/image-fit.h
 create mode 100644 include/rsa.h