BL2 for this platform uses mmap_add_dynamic_region(), but BL31 and
BL32 (TSP) only use static mapping. So, BL31 and BL32 can make the
tables read-only after enabling MMU.

Enable ALLOW_RO_XLAT_TABLES by default.

Change-Id: Ib59c44697163629119888bb6abd47fa144f09ba3
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>

Currently, enable_mmu_el1() or enable_mmu_el3() is kept outside the
common function because the appropriate one must be chosen.

Use enable_mmu() and move it to the common function.

Change-Id: If2fb651691a7b6be05674f5cf730ae067ba95d4b
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>

The I/O register region will be changed in the next SoC. Make it
configurable.

Change-Id: Iec0cbd1ef2d0703ebc7c3d3082edd73791bbfec9
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>

BL2_BASE, BL31_BASE, and BL32_BASE are defined in platform_def.h,
that is, determined at link-time.

On the other hand, BL2_END, BL31_END, and BL32_END are derived from
the symbols produced by the linker scripts. So, they are fixed-up
at run-time if ENABLE_PIE is enabled.

To make it work in a position-indepenent manner, use BL_CODE_BASE and
BL_END, both of which are relocatable.

Change-Id: Ic179a7c60eb64c5f3024b178690b3ac7cbd7521b
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.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: e0ea0928d5b7 ("Fix gpio includes of mt8173 platform
to avoid collision."). More recently, this patch has had similar
problems: 46f9b2c3a282 ("drivers: add tzc380 support").

This problem was introduced in commit 4ecca33988b9 ("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>

Looks like this is requirement in the pre-merge static analysis.

misra_violation: [Required] MISRA C-2012 Rule 7.2 violation:
Unsigned constants must be declared with U or u suffix.

Adding ULL as requested.  I used ULL() macros for BL*_{BASE,LIMIT}
because they are referenced from linker scripts.

Requested-by: David Cunado <david.cunado@arm.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>

Currently, the xlat region of the on-chip SRAM is always allocated
for all BL images.

The access to the on-chip SRAM is necessary for loading images from
a USB memory device (i.e. when updating firmware), so unneeded for
the usual boot procedure.

To avoid this waste, allocate the xlat region dynamically only for
BL2, and only when it is necessary.

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>