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If Trusted Firmware is built with optimizations disabled (-O0), the
linker throws the following error:

    undefined reference to 'xxx'

Where 'xxx' is a raw inline function defined in a header file. The
reason is that, with optimizations disabled, GCC may decide to skip
the inlining. If that is the case, an external definition to the
compilation unit must be provided. Because no external definition
is present, the linker throws the error.

This patch fixes the problem by declaring the following inline
functions static, so the internal definition is used:
 - cm_set_next_context()
 - bakery_lock_init()

Note that building the TF with optimizations disabled when Trusted
Board Boot is enabled is currently unsupported, as this makes the BL2
image too big to fit in memory without any adjustment of its base
address. Similarly, disabling optimizations for debug builds on FVP
is unsupported at the moment.

Change-Id: I284a9f84cc8df96a0c1a52dfe05c9e8544c0cefe

The user can provide additional CFLAGS to use when building TF.
However, these custom CFLAGS are currently prepended to the
standard CFLAGS that are hardcoded in the TF build system. This
is an issue because when providing conflicting compiler flags
(e.g. different optimisations levels like -O1 and -O0), the last
one on the command line usually takes precedence. This means that
the user flags get overriden.

To address this problem, this patch separates the TF CFLAGS from
the user CFLAGS. The former are now stored in the TF_CFLAGS make
variable, whereas the CFLAGS make variable is untouched and reserved
for the user. The order of the 2 sets of flags is enforced when
invoking the compiler.

Fixes ARM-Software/tf-issues#350

Change-Id: Ib189f44555b885f1dffbec6015092f381600e560

Use unsigned long long instead of uintptr_t in TZC400/DMC500 drivers

Currently the `tzc400_configure_region` and `tzc_dmc500_configure_region`
functions uses uintptr_t as the data type for `region_top` and `region_base`
variables, which will be converted to 32/64 bits for AArch32/AArch64
respectively. But the expectation is to keep these addresses at least 64 bit.

This patch modifies the data types to make it at least 64 bit by using
unsigned long long instead of uintptr_t for the `region_top` and
`region_base` variables. It also modifies the associated macros
`_tzc##fn_name##_write_region_xxx` accordingly.

Change-Id: I4e3c6a8a39ad04205cf0f3bda336c3970b15a28b

Fix build error in Rockchip platform

This patch fixes the compilation error in Rockchip rk3368 platform port when
it is built in release mode.

Fixes ARM-software/tf-issues#389

Change-Id: I1a3508ac3a620289cf700e79db8f08569331ac53

pass r0-r6 as part of smc param

Support for Xilinx Zynq UltraScale+ MPSoC

Fix style check and remove markdown files from it

All markdown (.md) files in the root directory of the repository and
all the files inside the 'docs' directory have been removed from
ROOT_DIRS_TO_CHECK in the Makefile in order not to perform the coding
style check on them.

Change-Id: Iac397b44f95cbcdb9a52cc20bf69998c394ac00a

Removed an extra parentheses that produced an invalid list of files
and directories to check by checkpatch.pl.

Change-Id: Iefe2c1f8be6e7b7b58f6ffe3e16fe6336b9a8689

Rename BL33_BASE and make it work with RESET_TO_BL31

Remove BL32_BASE when building without SPD for FVP

Differentiate `long` and `long long` formats in tf_printf

To avoid confusion the build option BL33_BASE has been renamed to
PRELOADED_BL33_BASE, which is more descriptive of what it does and
doesn't get mistaken by similar names like BL32_BASE that work in a
completely different way.

NOTE: PLATFORMS USING BUILD OPTION `BL33_BASE` MUST CHANGE TO THE NEW
BUILD OPTION `PRELOADED_BL33_BASE`.

Change-Id: I658925ebe95406edf0325f15aa1752e1782aa45b

The BL33 address is now set in arm_bl31_early_platform_setup() so
that the preloaded BL33 boot option is available when RESET_TO_BL31
is also used.

Change-Id: Iab93e3916f9199c3387886b055c7cd2315efed29

Previously, when building TF without SPD support, BL2 tried to load a
BL32 image from the FIP and fails to find one, which resulted on
warning messages on the console. Even if there is a BL32 image in the
FIP it shouldn't be loaded because there is no way to transfer
control to the Secure Payload without SPD support.

The Makefile has been modified to pass a define of the form
SPD_${SPD} to the source code the same way it's done for PLAT. The
define SPD_none is then used to undefine BL32_BASE when BL32 is not
used to prevent BL2 from trying to load a BL32 image and failing,
thus removing the warning messages mentioned above.

Fixes ARM-software/tf-issues#287

Change-Id: Ifeb6f1c26935efb76afd353fea88e87ba09e9658

This patch adds support to differentiate between `long` and `long long`
format specifiers in tf_printf(). In AArch64, they are the same which is
a 64-bit word. But, in AArch32 they are different and tf_printf() needs
to handle these format specifiers separately. This patch also fixes the
type of variables used to generic C types.

Change-Id: If3bbb0245cd0183acbe13bc1fe0d9743f417578f

Enable SCR_EL3.SIF bit

mt8173: fix spm driver build errors

fip_create: add support for image unpacking

Make improvements for host environment portability

Refactor the TZC driver and add DMC-500 driver

TBB NVcounter support

Add support for %z in tf_print()

This patch enables the SCR_EL3.SIF (Secure Instruction Fetch) bit in BL1 and
BL31 common architectural setup code. When in secure state, this disables
instruction fetches from Non-secure memory.

NOTE: THIS COULD BREAK PLATFORMS THAT HAVE SECURE WORLD CODE EXECUTING FROM
NON-SECURE MEMORY, BUT THIS IS CONSIDERED UNLIKELY AND IS A SERIOUS SECURITY
RISK.

Fixes ARM-Software/tf-issues#372

Change-Id: I684e84b8d523c3b246e9a5fabfa085b6405df319

To fix build errors in following build conditions,
DEBUG=1 LOG_LEVEL<40
DEBUG=0 LOG_LEVEL>=40

Change-Id: Ib34aed07b2ae0abd8a3a46948adc9fbeaae715aa
Signed-off-by: yt.lee <yt.lee@mediatek.com>

Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com>

The Xilinx Zynq UltraScale+ MPSOC containes a quad A53 cluster. This
patch adds the platform port for that SoC.
Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com>

This patch adds support for image unpacking to the FIP packaging
tool. Command line option '-u,--unpack' may be used to unpack the
contents of an existing FIP file into the working directory. The
tool uses default hardcoded filenames for the unpacked images. If
the files already exist, they can be overwritten by specifying the
option '-f,--force'.

Change-Id: I360b11d9c5403e8c0a7a9cac32c1d90ebb228063

Support for Rockchip's family SoCs

This patch adds to support the RK3368 and RK3399 SoCs.

RK3368/RK3399 is one of the Rockchip family SoCs, which is an
multi-cores ARM SoCs.

This patch adds support to boot the Trusted Firmware on RK3368/RK3399
SoCs, and adds support to boot secondary CPUs, enter/exit core
power states for all CPUs in the slow/fast clusters.

This is the initial version for rockchip SoCs.(RK3368/RK3399 and next SoCs)
* Support arm gicv2 & gicv3.
* Boot up multi-cores CPU.
* Add generic CPU helper functions.
* Support suspend/resume.
* Add system_off & system_reset implementation.
* Add delay timer platform implementation.
* Support the new porting interface for the PSCI implementation.

Change-Id: I704bb3532d65e8c70dbd99b512c5e6e440ea6f43
Signed-off-by: Tony Xie <tony.xie@rock-chips.com>
Signed-off-by: Caesar Wang <wxt@rock-chips.com>
Signed-off-by: Shengfei xu <xsf@rock-chips.com>

Modify return type of plat_get_ns_image_entrypoint()

Make the timer configuration conditional on the optional interface being
available.
Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com>

Add a driver for the Cadence UART which is found in Xilinx Zynq SOCs.
Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com>

This patch modifies the return type of the platform API
`plat_get_ns_image_entrypoint()` from `unsigned long` to
`uintptr_t` in accordance with the coding guidelines.

Change-Id: Icb4510ca98b706aa4d535fe27e203394184fb4ca

Remove xlat_helpers.c

mt8173: Protect BL31 memory from non-secure access

In new communication protocol between optee os and linux driver,
r0-r6 registers are used. opteed need to copy these registers
as well when optee context registers are initialized.

Change-Id: Ifb47b73f847c61746cb58ea78411c1c71f208030
Signed-off-by: Ashutosh Singh <ashutosh.singh@arm.com>

To get round problems encountered when building in a DOS build
environment the generation of the .o file containing build identifier
strings is modified.
The problems encounterred were:
   1. DOS echo doesn't strip ' characters from the output text.
   2. git is not available from CMD.EXE so the BUILD_STRING value needs
      some other origin.

A BUILD_STRING value of "development build" is used for now.

MAKE_BUILD_STRINGS is used to customise build string generation in a DOS
environment. This variable is not defined in the UNIX build environment
make file helper, and so the existing build string generation behaviour
is retained in these build environments.

NOTE: This commit completes a cumulative series aimed at improving
      build portability across development environments.
      This enables the build to run on several new build environments,
      if the relevant tools are available.
      At this point the build is tested on Windows 7 Enterprise SP1,
      using CMD.EXE, Cygwin and Msys (MinGW),as well as a native
      Linux envionment".  The Windows platform builds used
      aarch64-none-elf-gcc.exe 4.9.1.  CMD.EXE and Msys used Gnu
      Make 3.81, cygwin used Gnu Make 4.1.

CAVEAT: The cert_create tool build is not tested on the Windows
        platforms (openssl-for-windows has a GPL license).

Change-Id: Iaa4fc89dbe2a9ebae87e2600c9eef10a6af30251