Merge pull request #642 from soby-mathew/sm/override_rotpk ...

Allow dynamic overriding of ROTPK verification

Merge pull request #643 from sandrine-bailleux-arm/sb/checkpatch-conf-file ...

Move checkpatch options in a configuration file

Merge pull request #639 from danh-arm/dh/import-libfdt ...

Import libfdt v1.4.1 and related changes

Merge pull request #645 from sandrine-bailleux-arm/sb/improve-load-image-comments ...

Update comments in load_image()

Update comments in load_image() ...

- Fix the function documentation.
  Since commit 16948ae1, load_image() uses image IDs rather than image
  names.

- Clarify the consequences of a null entry point argument.

- Slightly reorganize the code to remove an unnecessary 'if' statement.

Change-Id: Iebea3149a37f23d3b847a37a206ed23f7e8ec717

Merge pull request #644 from sandrine-bailleux-arm/sb/rm-outdated-comment ...

xlat lib: Remove out-dated comment

Move checkpatch options in a configuration file ...

At the moment, the top Makefile specifies the options to pass to the
checkpatch script in order to check the coding style. The checkpatch
script also supports reading its options from a configuration file
rather than from the command line.

This patch makes use of this feature and moves the checkpatch options
out of the Makefile. This simplifies the Makefile and makes things
clearer.

This patch also adds some more checkpatch options:
  --showfile
  --ignore FILE_PATH_CHANGES
  --ignore AVOID_EXTERNS
  --ignore NEW_TYPEDEFS
  --ignore VOLATILE
The rationale behind each of these options has been documented
in the configuration file.

Change-Id: I423e1abe5670c0f57046cbf705f89a8463898676

Allow dynamic overriding of ROTPK verification ...

A production ROM with TBB enabled must have the ability to boot test software
before a real ROTPK is deployed (e.g. manufacturing mode). Previously the
function plat_get_rotpk_info() must return a valid ROTPK for TBB to succeed.
This patch adds an additional bit `ROTPK_NOT_DEPLOYED` in the output `flags`
parameter from plat_get_rotpk_info(). If this bit is set, then the ROTPK
in certificate is used without verifying against the platform value.

Fixes ARM-software/tf-issues#381

Change-Id: Icbbffab6bff8ed76b72431ee21337f550d8fdbbb

Merge pull request #641 from antonio-nino-diaz-arm/an/fvp-set-nv-ctr ...

Implement plat_set_nv_ctr for FVP platforms

Merge pull request #640 from sandrine-bailleux-arm/sb/fix-syntax-error ...

Fix a syntax error in plat/arm/common/aarch64/arm_common.c

Merge pull request #637 from yatharth-arm/yk/genfw-1134 ...

Add support for ARM Cortex-A73 MPCore Processor

Merge pull request #636 from soby-mathew/sm/cpu_ctx_rem_aarch32_regs ...

Build option to include AArch32 registers in cpu context

Fix a syntax error ...

Building TF with ERROR_DEPRECATED=1 fails because of a missing
semi-column. This patch fixes this syntax error.

Change-Id: I98515840ce74245b0a0215805f85c8e399094f68

Minor libfdt changes to enable TF integration ...

* Move libfdt API headers to include/lib/libfdt
* Add libfdt.mk helper makefile
* Remove unused libfdt files
* Minor changes to fdt.h and libfdt.h to make them C99 compliant

Co-Authored-By: Jens Wiklander <jens.wiklander@linaro.org>

Change-Id: I425842c2b111dcd5fb6908cc698064de4f77220e

Import libfdt v1.4.1 ...

Imports libfdt code from https://git.kernel.org/cgit/utils/dtc/dtc.git
tag "v1.4.1" commit 302fca9.

Change-Id: Ia0d966058beee55a9047e80d8a05bbe4f71d8446

Exclude more files from checkpatch and checkcodebase ...

Exclude documentation files from the `make checkcodebase` target
(these files were already excluded from checkpatch).

Also exclude libfdt files to prepare for import of this library.

Change-Id: Iee597ed66494de2b11cf84096f771f1f04472d5b

Move stdlib header files to include/lib/stdlib ...

* Move stdlib header files from include/stdlib to include/lib/stdlib for
  consistency with other library headers.
* Fix checkpatch paths to continue excluding stdlib files.
* Create stdlib.mk to define the stdlib source files and include directories.
* Include stdlib.mk from the top level Makefile.
* Update stdlib header path in the fip_create Makefile.
* Update porting-guide.md with the new paths.

Change-Id: Ia92c2dc572e9efb54a783e306b5ceb2ce24d27fa

Implement plat_set_nv_ctr for FVP platforms ...

Replaced placeholder implementation of plat_set_nv_ctr for FVP
platforms by a working one.

On FVP, the mapping of region DEVICE2 has been changed from RO to RW
to prevent exceptions when writing to the NV counter, which is
contained in this region.

Change-Id: I56a49631432ce13905572378cbdf106f69c82f57

Build option to include AArch32 registers in cpu context ...

The system registers that are saved and restored in CPU context include
AArch32 systems registers like SPSR_ABT, SPSR_UND, SPSR_IRQ, SPSR_FIQ,
DACR32_EL2, IFSR32_EL2 and FPEXC32_EL2. Accessing these registers on an
AArch64-only (i.e. on hardware that does not implement AArch32, or at
least not at EL1 and higher ELs) platform leads to an exception. This patch
introduces the build option `CTX_INCLUDE_AARCH32_REGS` to specify whether to
include these AArch32 systems registers in the cpu context or not. By default
this build option is set to 1 to ensure compatibility. AArch64-only platforms
must set it to 0. A runtime check is added in BL1 and BL31 cold boot path to
verify this.

Fixes ARM-software/tf-issues#386

Change-Id: I720cdbd7ed7f7d8516635a2ec80d025f478b95ee

xlat lib: Remove out-dated comment ...

As of commit e1ea9290bb, if the attributes of an inner memory region
are different than the outer region, new page tables are generated
regardless of how "restrictive" they are. This patch removes an
out-dated comment still referring to the old priority system based
on which attributes were more restrictive.

Change-Id: Ie7fc1629c90ea91fe50315145f6de2f3995e5e00

Add support for ARM Cortex-A73 MPCore Processor ...

This patch adds ARM Cortex-A73 MPCore Processor support
in the CPU specific operations framework. It also includes
this support for the Base FVP port.

Change-Id: I0e26b594f2ec1d28eb815db9810c682e3885716d

Merge pull request #632 from rockchip-linux/support-for-gpio-driver-v2 ...

rockchip/rk3399: Support the gpio driver and configure

Merge pull request #634 from sandrine-bailleux-arm/sb/exception-vectors ...

Improve robustness and readability of exception code

Merge pull request #633 from soby-mathew/sm/psci_wfi_hook ...

PSCI: Add pwr_domain_pwr_down_wfi() hook in plat_psci_ops

Merge pull request #627 from soby-mathew/sm/fvp_ccn502_sup_1 ...

Add CCN support to FVP

rockchip: support system off function for rk3399 ...

if define power off gpio, BL31 will do system power off through
gpio control.

rockchip: support reset SoC through gpio for rk3399 ...

If define a reset gpio, BL31 will use gpio to reset SOC,
otherwise use CRU reset.

rockchip: add reset or power off gpio configuration for rk3399 ...

We add plat parameter structs to support BL2 to pass variable-length,
variable-type parameters to BL31. The parameters are structured as a
link list. During bl31 setup time, we travse the list to process each
parameter. throuth this way, we can get the reset or power off gpio
parameter, and do hardware control in BL31. This structure also can
pass other parameter to BL31 in future.

rockchip: support rk3399 gpio driver ...

There are 5 groups of GPIO (GPIO0~GPIO4), totally have 122 GPIOs
on rk3399 platform.
The pull direction(pullup or pulldown) for all of GPIOs are
software-programmable.
At the moment, we add the gpio basic driver since reset or power off
the devices from gpio configuration for BL31.

gpio: support gpio set/get pull status ...

On some platform gpio can set/get pull status when input, add these
function so we can set/get gpio pull status when need it. And they are
optional function.