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Fix variable shadowing warnings and prevent code duplication.

Change-Id: Idb29cc95d6b6943bc012d7bd430afa0e4a7cbf8c
Signed-off-by: Ambroise Vincent <ambroise.vincent@arm.com>

Improved support for W=2 compilation flag by solving some nested-extern
and sign-compare warnings.

The libraries are compiling with warnings (which turn into errors with
the Werror flag).

Outside of libraries, some warnings cannot be fixed.

Change-Id: I06b1923857f2a6a50e93d62d0274915b268cef05
Signed-off-by: Ambroise Vincent <ambroise.vincent@arm.com>

Improved support for W=1 compilation flag by solving missing-prototypes
and old-style-definition warnings.

The libraries are compiling with warnings (which turn into errors with
the Werror flag).

Outside of libraries, some warnings cannot be fixed without heavy
structural changes.

Change-Id: I1668cf99123ac4195c2a6a1d48945f7a64c67f16
Signed-off-by: Ambroise Vincent <ambroise.vincent@arm.com>

doc: Suggest to use the latest version of GCC 8.2

doc: Clarify draft status of SPCI and SPRT specs

These SPM-related specifications are mentioned in the readme and
the change log. Update references to these specs to make it clear
that they are in draft form and are expected to change.

Change-Id: Ia2791c48c371a828246d96f102a402747cd69f96
Signed-off-by: Paul Beesley <paul.beesley@arm.com>

The latest version of GCC are required to use the new features of TF-A.
Suggest to use the latest version available on developer.arm.com instead
of the version specified on the Linaro Release notes.
At the time of writing, GCC 8.2-2019.01 is the latest version available.

Change-Id: Idd5c00749e39ca9dc8b7c5623b5d64356c9ce6e5
Signed-off-by: Louis Mayencourt <louis.mayencourt@arm.com>

Update TF-A version to 2.1

docs: List MB version dependancy for Juno FWU as known issue

Change-Id: Ib37215ca4c9b515e54054290952eed5034582ba4
Signed-off-by: Soby Mathew <soby.mathew@arm.com>

Documentation: update tested platforms

Update both the readme and user guide on their shared "platform"
section.

Change-Id: Ia1f30acda45ac8facdcb7d540800191cdf6cdacf
Signed-off-by: Ambroise Vincent <ambroise.vincent@arm.com>

doc: Prepare readme for 2.1 release

doc: Update change log for v2.1

Update user guide for 2.1 release

Change-Id: Ib6a20ffdddad11b9629d7dca7f841182299bf860
Signed-off-by: Paul Beesley <paul.beesley@arm.com>

Change-Id: Id3ae11a401a2e5290bb1980f1f349fc3cf49c7d6
Signed-off-by: Paul Beesley <paul.beesley@arm.com>

Change-Id: I6d8a6419df4d4924214115facbce90715a1a0371
Signed-off-by: Soby Mathew <soby.mathew@arm.com>

Make sure the steps in the user guide are up to date and can be
performed out of the box.

Change-Id: Ib4d959aa771cf515f74e150aaee2fbad24c18c38
Signed-off-by: Ambroise Vincent <ambroise.vincent@arm.com>

This is the temporary contents page that links
to all other documents (except platform ports).

This page is needed during the
trustedfirmware.org migration, before we have a
Sphinx rendering pipeline set up, because cgit
doesn't offer a good way to view rendered docs
while browsing the tree. We need to have a links
page that can be opened from the cgit 'about'
view.

Change-Id: I3ad87a9fa8a14dc8e371aac7ee473575fed316bf
Signed-off-by: Paul Beesley <paul.beesley@arm.com>

PIE: Fix reloc at the beginning of bl31 entrypoint

The relocation fixup code must be called at the beginning of bl31
entrypoint to ensure that CPU specific reset handlers are fixed up for
relocations.

Change-Id: Icb04eacb2d4c26c26b08b768d871d2c82777babb
Signed-off-by: Louis Mayencourt <louis.mayencourt@arm.com>

driver: synosys: Fix SD MMC not initializing correctly

dw_params.mmc_dev_type should be assigned before mmc_init, otherwise SDMMC
initialization will fail as the initialization treats the device as EMMC
instead of SD.
Signed-off-by: Tien Hock, Loh <tien.hock.loh@intel.com>

ROMLIB bug fixes

Fixed the below bugs:
1) Bug related to build flag V=1: if the flag was V=0, building with
ROMLIB would fail.
2) Due to a syntax bug in genwrappers.sh, index file entries marked as
"patch" or "reserved" were ignored.
3) Added a prepending hash to constants that genwrappers is generating.
4) Due to broken dependencies, currently the inclusion functionality is
intentionally not utilised. This is why the contents of romlib/jmptbl.i
have been copied to platform specific jmptbl.i files. As a result of the
broken dependencies, when changing the index files, e.g. patching
functions, a clean build is always required. This is a known issue that
will be fixed in the future.

Change-Id: I9d92aa9724e86d8f90fcd3e9f66a27aa3cab7aaa
Signed-off-by: John Tsichritzis <john.tsichritzis@arm.com>

Add USE_ROMLIB build option to user guide

Cortex-A76: Optimize CVE_2018_3639 workaround

Restore PAuth context in case of unknown SMC call

xlat_tables_v2: Revert recent changes to remove recursion

This commit reverts the following commits:

- c54c7fc3 ("xlat_tables_v2: print xlat tables without recursion")
- db8cac2d ("xlat_tables_v2: unmap region without recursion.")
- 0ffe2692

 ("xlat_tables_v2: map region without recursion.")

This was part of PR#1843.

A problem has been detected in one of our test run configurations
involving dynamic mapping of regions and it is blocking the next
release. Until the problem can be solved, it is safer to revert
the changes.

Change-Id: I3d5456e4dbebf291c8b74939c6fb02a912e0903b
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>

Change-Id: I4261fec500184383980b7fc9475620a485cf6c28
Signed-off-by: John Tsichritzis <john.tsichritzis@arm.com>

Fix MIDR_EL1 value for Neoverse E1

Declare ENABLE_PAUTH build option as experimental

Change-Id: I8fb346743b7afddbb8bf5908db4f27ee5a26f99b
Signed-off-by: Alexei Fedorov <Alexei.Fedorov@arm.com>

Declare ENABLE_PAUTH and CTX_INCLUDE_PAUTH_REGS
build options as experimental.
Pointer Authentication is enabled for Non-secure world
irrespective of the value of these build flags if the
CPU supports it.
The patch also fixes the description of fiptool 'help' command.

Change-Id: I46de3228fbcce774a2624cd387798680d8504c38
Signed-off-by: Alexei Fedorov <Alexei.Fedorov@arm.com>

Pointer authentication fixes

Change-Id: I75ee39d78c81ecb528a671c0cfadfc2fe7b5d818
Signed-off-by: John Tsichritzis <john.tsichritzis@arm.com>

rockchip: add an fdt parsing stub for platform param

Introduce preliminary support for Neoverse Zeus