ARM plat: add build option to unlock access to non-secure timer

Currently, Trusted Firmware on ARM platforms unlocks access to the
timer frame registers that will be used by the Non-Secure world. Th

ARM plat: add build option to unlock access to non-secure timer

Currently, Trusted Firmware on ARM platforms unlocks access to the
timer frame registers that will be used by the Non-Secure world. This
unlock operation should be done by the Non-Secure software itself,
instead of relying on secure firmware settings.

This patch adds a new ARM specific build option 'ARM_CONFIG_CNTACR'
to unlock access to the timer frame by setting the corresponding
bits in the CNTACR<N> register. The frame id <N> is defined by
'PLAT_ARM_NSTIMER_FRAME_ID'. Default value is true (unlock timer
access).

Documentation updated accordingly.

Fixes ARM-software/tf-issues#170

Change-Id: Id9d606efd781e43bc581868cd2e5f9c8905bdbf6

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Merge pull request #493 from yupluo01/yp/tf-issue-fix-doc-links

Update doc links in the porting guide

Update doc links in the porting guide

GIC v2 and v3 specification references in the porting guide
should refer to publically visible links, not ARM internal links.

Change-Id: Ib47c8adda6a03581f23bc

Update doc links in the porting guide

GIC v2 and v3 specification references in the porting guide
should refer to publically visible links, not ARM internal links.

Change-Id: Ib47c8adda6a03581f23bcaed72d71c08c7dd9fb1
Signed-off-by: Yuping Luo <yuping.luo@arm.com>

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Merge pull request #489 from sandrine-bailleux/sb/fix-mailbox-doc

Doc: Update out-dated info about Juno's mailbox

Doc: Update out-dated info about Juno's mailbox

Since commit 804040d106, the Juno port has moved from per-CPU mailboxes
to a single shared one. This patch updates an out-dated reference to
the forme

Doc: Update out-dated info about Juno's mailbox

Since commit 804040d106, the Juno port has moved from per-CPU mailboxes
to a single shared one. This patch updates an out-dated reference to
the former per-CPU mailboxes mechanism in the Firmware Design.

Change-Id: I355b54156b1ace1b3df4c4416e1e8625211677fc

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Remove direct usage of __attribute__((foo))

Migrate all direct usage of __attribute__ to usage of their
corresponding macros from cdefs.h.
e.g.:
- __attribute__((unused)) -> __unused

Signed-off-by

Remove direct usage of __attribute__((foo))

Migrate all direct usage of __attribute__ to usage of their
corresponding macros from cdefs.h.
e.g.:
- __attribute__((unused)) -> __unused

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

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Merge pull request #485 from jcastillo-arm/jc/max_mmap_reg

Add 'MAX_MMAP_REGIONS' and 'ADDR_SPACE_SIZE' to the Porting Guide

Add 'MAX_MMAP_REGIONS' and 'ADDR_SPACE_SIZE' to the Porting Guide

This patch adds a brief description of 'MAX_MMAP_REGIONS' and
'ADDR_SPACE_SIZE' to the Porting Guide. These fields must be defined
b

Add 'MAX_MMAP_REGIONS' and 'ADDR_SPACE_SIZE' to the Porting Guide

This patch adds a brief description of 'MAX_MMAP_REGIONS' and
'ADDR_SPACE_SIZE' to the Porting Guide. These fields must be defined
by the platform in order to use the translation table library.

Change-Id: Ida366458fe2bc01979091a014dc38da0fae5991e

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Documentation: Fix broken links in ToCs

Change-Id: I4fcdb8e813e0392c2cd3d0623698e8319b3b0593

Fixes in CPU specific operations framework doc

This patch fixes a couple of issues in the "CPU specific operations
framework" section in the Firmware Design document.

* Fix broken link to the CPU

Fixes in CPU specific operations framework doc

This patch fixes a couple of issues in the "CPU specific operations
framework" section in the Firmware Design document.

* Fix broken link to the CPU Specific Build Macros document.

* Fix the path to the cortex_a53.S file.

* Fix power levels terminology.

Change-Id: Ib610791eaba13dab2823b7699bb63534bcd1c8fb

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Apply TBBR naming convention to the fip_create options

The fip_create tool specifies images in the command line using the
ARM TF naming convention (--bl2, --bl31, etc), while the cert_create
tool us

Apply TBBR naming convention to the fip_create options

The fip_create tool specifies images in the command line using the
ARM TF naming convention (--bl2, --bl31, etc), while the cert_create
tool uses the TBBR convention (--tb-fw, --soc-fw, etc). This double
convention is confusing and should be aligned.

This patch updates the fip_create command line options to follow the
TBBR naming convention. Usage examples in the User Guide have been
also updated.

NOTE: users that build the FIP by calling the fip_create tool directly
from the command line must update the command line options in their
scripts. Users that build the FIP by invoking the main ARM TF Makefile
should not notice any difference.

Change-Id: I84d602630a2585e558d927b50dfde4dd2112496f

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Merge pull request #475 from danh-arm/dh/v1.2-final

Final v1.2 release changes

Update `change-log.md` for v1.2 release

Change-Id: I23a852fc7d91f91923bb84bc3167a830d1bb7463

Miscellaneous doc fixes for v1.2

Change-Id: I6f49bd779f2a4d577c6443dd160290656cdbc59b

Clarify "Getting the TF source code" in user guide

Remove the following redundant sentence from the user guide, which
implies the user should use the TF version from the Linaro release,
which was no

Clarify "Getting the TF source code" in user guide

Remove the following redundant sentence from the user guide, which
implies the user should use the TF version from the Linaro release,
which was not the intention:

"However, the rest of this document assumes that you got the
Trusted Firmware as part of the Linaro release."

Also, tidied up the grammar in this section.

Change-Id: I5dae0b68d3683e2a85a7b3c6a31222182a66f6c8

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Merge pull request #473 from labapart/documentation-clean-legacy-variables

Documentation: Clean legacy variables in User Guide

Merge pull request #472 from danh-arm/dh/fwu-docs

FWU: Add documentation for Firmware Update feature

FWU: Add documentation for Firmware Update feature

This patch adds design documentation for the Firmware Update (FWU)
feature in `firmware-update.md`. It provides an overview of FWU,
describes the B

FWU: Add documentation for Firmware Update feature

This patch adds design documentation for the Firmware Update (FWU)
feature in `firmware-update.md`. It provides an overview of FWU,
describes the BL1 SMC interface, and includes diagrams showing
an example FWU boot flow and the FWU state machine.

This patch also updates the existing TF documents where needed:

* `porting-guide.md`
* `user-guide.md`
* `firmware-design.md`
* `rt-svc-writers-guide.md`
* `trusted_board_boot.md`

Change-Id: Ie6de31544429b18f01327bd763175e218299a4ce
Co-Authored-By: Dan Handley <dan.handley@arm.com>

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docs/user-guide.md: Remove deprecated `FVP_SHARED_DATA_LOCATION`

docs/user-guide.md: Renamed legacy `FVP_TSP_RAM_LOCATION`

`FVP_TSP_RAM_LOCATION` has been renamed into `ARM_TSP_RAM_LOCATION`.

Merge pull request #471 from sandrine-bailleux/sb/reset-doc-v2

Introduce the ARM TF reset design document (v2)

Introduce the ARM TF reset design document

This patch introduces a new document presenting the ARM Trusted
Firmware Reset Design. It shows the reset code flow, lists the
different build options that

Introduce the ARM TF reset design document

This patch introduces a new document presenting the ARM Trusted
Firmware Reset Design. It shows the reset code flow, lists the
different build options that affect it, in which case to use them
and what their exact effect is.

The section about using BL31 entrypoint as the reset address has
been moved from the general firmware design document to this one.
It's also been improved to explain why the FVP port supports the
RESET_TO_BL31 configuration, even though the reset vector address
can't be programmed dynamically.

This document includes some images, which have been generated using
Dia version 0.97.2. This tool can be obtained from:
https://wiki.gnome.org/Apps/Dia/Download
This patch provides:
- the image files describing the different reset flow diagrams;
- the source '.dia' file;
- a script automating the generation of the images from the '.dia'
file.
Note that the 2 latter files are not actually needed for the document
and are provided for convenience only, in case the reset images need
to be modified.

Change-Id: Ib6302e8209d418a5b31c4e85e55fd9e83caf2ca2

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Documentation updates for the new GIC drivers

This patch updates the relevant documentation in ARM Trusted Firmware
for the new GIC drivers. The user-guide.md and porting-guide.md have been
updated

Documentation updates for the new GIC drivers

This patch updates the relevant documentation in ARM Trusted Firmware
for the new GIC drivers. The user-guide.md and porting-guide.md have been
updated as follows:

* The build option to compile Trusted Firmware with different GIC drivers
for FVP has been explained in the user-guide.md.

* The implementation details of interrupt management framework porting
APIs for GICv3 have been added in porting-guide.md.

* The Linaro tracking kernel release does not work OOB in GICv3 mode.
The instructions for changing UEFI configuration in order to run with
the new GICv3 driver in ARM TF have been added to user-guide.md.

The interrupt-framework-design.md has been updated as follows:

* Describes support for registering and handling interrupts targeted to EL3
e.g. Group 0 interrupts in GICv3.

* Describes the build option `TSP_NS_INTR_ASYNC_PREEMPT` in detail.

* Describes preemption of TSP in S-EL1 by non secure interrupts and
also possibly by higher priority EL3 interrupts.

* Describes the normal world sequence for issuing `standard` SMC calls.

* Modifies the document to correspond to the current state of interrupt
handling in TSPD and TSP.

* Modifies the various functions names in the document to reflect
the current names used in code.

Change-Id: I78c9514b5be834f193405aad3c1752a4a9e27a6c

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Remove dashes from image names: 'BL3-x' --> 'BL3x'

This patch removes the dash character from the image name, to
follow the image terminology in the Trusted Firmware Wiki page:

https://github.c

Remove dashes from image names: 'BL3-x' --> 'BL3x'

This patch removes the dash character from the image name, to
follow the image terminology in the Trusted Firmware Wiki page:

https://github.com/ARM-software/arm-trusted-firmware/wiki

Changes apply to output messages, comments and documentation.

non-ARM platform files have been left unmodified.

Change-Id: Ic2a99be4ed929d52afbeb27ac765ceffce46ed76

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Replace all SCP FW (BL0, BL3-0) references

This patch replaces all references to the SCP Firmware (BL0, BL30,
BL3-0, bl30) with the image terminology detailed in the TF wiki
(https://github.com/ARM-

Replace all SCP FW (BL0, BL3-0) references

This patch replaces all references to the SCP Firmware (BL0, BL30,
BL3-0, bl30) with the image terminology detailed in the TF wiki
(https://github.com/ARM-software/arm-trusted-firmware/wiki):

BL0 --> SCP_BL1
BL30, BL3-0 --> SCP_BL2
bl30 --> scp_bl2

This change affects code, documentation, build system, tools and
platform ports that load SCP firmware. ARM plaforms have been
updated to the new porting API.

IMPORTANT: build option to specify the SCP FW image has changed:

BL30 --> SCP_BL2

IMPORTANT: This patch breaks compatibility for platforms that use BL2
to load SCP firmware. Affected platforms must be updated as follows:

BL30_IMAGE_ID --> SCP_BL2_IMAGE_ID
BL30_BASE --> SCP_BL2_BASE
bl2_plat_get_bl30_meminfo() --> bl2_plat_get_scp_bl2_meminfo()
bl2_plat_handle_bl30() --> bl2_plat_handle_scp_bl2()

Change-Id: I24c4c1a4f0e4b9f17c9e4929da815c4069549e58

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