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Skipping SCP_BL2 image is just a temporary workaround. If on-chip SCP
needs to work, BL2 should load the SCP_BL2 image.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>

The codebase was using non-standard headers. It is needed to replace
them by the correct ones so that we can use the new libc headers.

Change-Id: I530f71d9510cb036e69fe79823c8230afe890b9d
Acked-by: Sumit Garg <sumit.garg@linaro.org>
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>

Allow to handle GZIP-compressed images by giving FIP_GZIP=1 from the
command line.

- Images are GZIP-compressed, then packed into FIP.  If Trusted Board
  Boot is enabled, certificates are generated based on the compressed
  images.

- GZIP decompressor is linked into BL2 to decompress images at
  run-time.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>

In the next commit, I will have more usecases to get struct image_info
from image ID.  It is better to make a helper function at a different
layer.  I do not need the current uniphier_image_descs_fixup() since
the code is small enough to be squashed into the caller side.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>

UniPhier platform implements non-TF boot ROM.  Prior to the BL2-AT-EL3
support, BL1 (worked as a pseudo ROM) was needed just for ensuring BL2
is entered at EL1-S.  Now, this platform is able to avoid this waste.

Enable the BL2_AT_EL3 option, and remove BL1.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>

Initial commit for Socionext UniPhier SoC support.  BL1, Bl2, and
BL31 are supported.  Refer to docs/plat/socionext-uniphier.md for
more detais.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>