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Fix code that violates the MISRA rule:
MISRA C-2012 Rule 11.9: Literal "0" shall not be used as
null pointer constant.

The fix explicitly checks whether a pointer is NULL.

Change-Id: Ibc318dc0f464982be9a34783f24ccd1d44800551
Signed-off-by: Zelalem <zelalem.aweke@arm.com>

When Trusted Boot is enabled, images are loaded and authenticated
following up the root of trust. This means that between the initial
console message saying that an image is being loaded, and the final one
where it says that it failed to load it, BL2 may print several messages
about other images on the chain of trust being loaded, thus it is not
always clear which image we failed loading at the end of the day.

Change-Id: I3b189ec9d12c2a6203d16c8dbbb4fc117639c3c1
Signed-off-by: Sandrine Bailleux <sandrine.bailleux@arm.com>

Enforce full include path for includes. Deprecate old paths.

The following folders inside include/lib have been left unchanged:

- include/lib/cpus/${ARCH}
- include/lib/el3_runtime/${ARCH}

The reason for this change is that having a global namespace for
includes isn't a good idea. It defeats one of the advantages of having
folders and it introduces problems that are sometimes subtle (because
you may not know the header you are actually including if there are two
of them).

For example, this patch had to be created because two headers were
called the same way: e0ea0928 ("Fix gpio includes of mt8173 platform
to avoid collision."). More recently, this patch has had similar
problems: 46f9b2c3 ("drivers: add tzc380 support").

This problem was introduced in commit 4ecca339

 ("Move include and
source files to logical locations"). At that time, there weren't too
many headers so it wasn't a real issue. However, time has shown that
this creates problems.

Platforms that want to preserve the way they include headers may add the
removed paths to PLAT_INCLUDES, but this is discouraged.

Change-Id: I39dc53ed98f9e297a5966e723d1936d6ccf2fc8f
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>

Rule 8.3: All declarations of an object or function shall
          use the same names and type qualifiers.

Fixed for:

	make DEBUG=1 PLAT=fvp LOG_LEVEL=50 all

Change-Id: I32d6fbce03bb4830ed5bf521afe7063505c6ed79
Signed-off-by: Roberto Vargas <roberto.vargas@arm.com>

Rule 8.4: A compatible declaration shall be visible when
          an object or function with external linkage is defined

Fixed for:
	make DEBUG=1 PLAT=fvp LOG_LEVEL=50 all

Change-Id: I7c2ad3f5c015411c202605851240d5347e4cc8c7
Signed-off-by: Roberto Vargas <roberto.vargas@arm.com>

As per MISRA C-2012 Rule 10.4.
arg0 is a u_register_t, can be a 32bit or 64bit upon architecture.
Signed-off-by: Etienne Carriere <etienne.carriere@linaro.org>

AArch32 only platforms can boot the OP-TEE secure firmware as
a BL32 secure payload. Such configuration can be defined through
AARCH32_SP=optee.

The source files can rely on AARCH32_SP_OPTEE to condition
OP-TEE boot specific instruction sequences.

OP-TEE does not expect ARM Trusted Firmware formatted structure
as boot argument. Load sequence is expected to have already loaded
to OP-TEE boot arguments into the bl32 entrypoint info structure.

Last, AArch32 platform can only boot AArch32 OP-TEE images.

Change-Id: Ic28eec5004315fc9111051add6bb1a1d607fc815
Signed-off-by: Etienne Carriere <etienne.carriere@linaro.org>

There are cases where we need to manipulate image information before
the load.  For example, for decompressing data, we cannot load the
compressed images to their final destination.  Instead, we need to
load them to the temporary buffer for the decompressor.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>

To make software license auditing simpler, use SPDX[0] license
identifiers instead of duplicating the license text in every file.

NOTE: Files that have been imported by FreeBSD have not been modified.

[0]: https://spdx.org/



Change-Id: I80a00e1f641b8cc075ca5a95b10607ed9ed8761a
Signed-off-by: dp-arm <dimitris.papastamos@arm.com>

Previously, get_next_bl_params_from_mem_params_desc() populated arg0
in the EL3 runtime entrypoint with a bl_params_t pointer. This is the
responsibility of the generic LOAD_IMAGE_V2 framework instead of the
descriptor-based image loading utility functions. Therefore this patch
moves that code to bl2_load_images().

Also, this patch moves the code that flushes the bl_params structure to
flush_bl_params_desc(), together with the other descriptor-based image
loading flushing code.

Change-Id: I4541e3f50e3878dde7cf89e9e8f31fe0b173fb9d
Signed-off-by: Dan Handley <dan.handley@arm.com>

This patch adds changes in BL1 & BL2 to use new version
of image loading to load the BL images.

Following are the changes in BL1:
  -Use new version of load_auth_image() to load BL2
  -Modified `bl1_init_bl2_mem_layout()` to remove using
   `reserve_mem()` and to calculate `bl2_mem_layout`.
   `bl2_mem_layout` calculation now assumes that BL1 RW
   data is at the top of the bl1_mem_layout, which is more
   restrictive than the previous BL1 behaviour.

Following are the changes in BL2:
  -The `bl2_main.c` is refactored and all the functions
   for loading BLxx images are now moved to `bl2_image_load.c`
   `bl2_main.c` now calls a top level `bl2_load_images()` to
   load all the images that are applicable in BL2.
  -Added new file `bl2_image_load_v2.c` that uses new version
   of image loading to load the BL images in BL2.

All the above changes are conditionally compiled using the
`LOAD_IMAGE_V2` flag.

Change-Id: Ic6dcde5a484495bdc05526d9121c59fa50c1bf23