docs: Fixup filename and links to compatibility policy ...

Change-Id: I9d14faa7294578443233b84d5459fa7b62a30c07
Signed-off-by: Soby Mathew <soby.mathew@arm.com>

Merge pull request #1600 from soby-mathew/sm/compat_policy_doc ...

docs: Add platform compatibility policy document

docs: Add platform compatibility policy document ...

Information regarding platform compatibility policy
is added to the documentation.

Change-Id: If9f2a11160f81354ee2c678f0fca9d67fc7366e6
Signed-off-by: Soby Mathew <soby.mathew@arm.com>

Merge pull request #1598 from soby-mathew/sm/docs_update_deprecate_1 ...

docs: update for removal of deprecated interfaces.

docs: update for removal of deprecated interfaces. ...

Change-Id: I69e2720f534583a0f8d0e44f2e7b6f393f6fd093
Signed-off-by: Soby Mathew <soby.mathew@arm.com>

xlat: Remove deprecated interfaces ...

Change-Id: I83de2ae3e0795e6fec3c1e5b37c441b64b0c9cb6
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>

PSCI: Remove platform compatibility layer ...

Change-Id: I40d040aa05bcbf11536a96ce59827711456b93a8
Co-authored-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>

Support shared Mbed TLS heap for FVP ...

This patch introduces the shared Mbed TLS heap optimisation for Arm
platforms. The objective is the Mbed TLS heap to be shared between BL1
and BL2 so as to not allocate the heap memory twice. To achieve that,
the patch introduces all the necessary helpers for implementing this
optimisation. It also applies it for FVP.

Change-Id: I6d85eaa1361517b7490956b2ac50f5fa0d0bb008
Signed-off-by: John Tsichritzis <john.tsichritzis@arm.com>

Prepare Mbed TLS drivers for shared heap ...

The Mbed TLS drivers, in order to work, need a heap for internal usage.
This heap, instead of being directly referenced by the drivers, now it
is being accessed indirectly through a pointer. Also, the heap, instead
of being part of the drivers, now it is being received through the
plat_get_mbedtls_heap() function. This function requests a heap from the
current BL image which utilises the Mbed TLS drivers.

Those changes create the opportunity for the Mbed TLS heap to be shared
among different images, thus saving memory. A default heap
implementation is provided but it can be overridden by a platform
specific, optimised implemenetation.

Change-Id: I286a1f10097a9cdcbcd312201eea576c18d157fa
Signed-off-by: John Tsichritzis <john.tsichritzis@arm.com>

libc: Introduce files from SCC ...

Taken from http://git.simple-cc.org/scc/ from the following commit:

67508ad

Permission has been granted from the author to use them under the
license BSD-3-Clause instead of ISC.

Change-Id: I65c0ce3ab60c49d34a57533af12a74bd7bde88e5
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>

Merge pull request #1492 from jts-arm/docs ...

Reword LOAD_IMAGE_V2 in user guide & fix a typo

Reword LOAD_IMAGE_V2 in user guide & fix a typo ...

Change-Id: Id2639218dfffec84d8b0fa295d7e896129d4fcd7
Signed-off-by: John Tsichritzis <john.tsichritzis@arm.com>

RAS: Update porting guide with RAS platform handlers ...

Change-Id: I76cb1d387ab51ee48fa91fd7458c7041b454ceee
Signed-off-by: Jeenu Viswambharan <jeenu.viswambharan@arm.com>

DynamIQ: Enable MMU without using stack ...

Having an active stack while enabling MMU has shown coherency problems.
This patch builds on top of translation library changes that introduces
MMU-enabling without using stacks.

Previously, with HW_ASSISTED_COHERENCY, data caches were disabled while
enabling MMU only because of active stack. Now that we can enable MMU
without using stack, we can enable both MMU and data caches at the same
time.

NOTE: Since this feature depends on using translation table library v2,
disallow using translation table library v1 with HW_ASSISTED_COHERENCY.

Fixes ARM-software/tf-issues#566

Change-Id: Ie55aba0c23ee9c5109eb3454cb8fa45d74f8bbb2
Signed-off-by: Jeenu Viswambharan <jeenu.viswambharan@arm.com>

Fix typos in documentation ...

In the porting guide, there are blue boxes that describe the argument
types and the return type of each function.  A small typo caused some of
these boxes not being properly rendered.

In the user guide, small typos were fixed that caused random text being
unintentionally rendered as bold.  Also, a slight rewording was done in
the section describing the DYN_DISABLE_AUTH flag.

Change-Id: I57303ca609436a82162fa9b42c06b0d5a63da6df
Signed-off-by: John Tsichritzis <john.tsichritzis@arm.com>

Fix doc for bl31_plat_get_next_image_ep_info() ...

In the porting guide, fix the function name and the argument type to
reflect the code.

Change-Id: Iac8d69af403194de5586bc0d5890da531e3c8da2
Signed-off-by: Sandrine Bailleux <sandrine.bailleux@arm.com>

Add support for BL2 in XIP memory ...

In some use-cases BL2 will be stored in eXecute In Place (XIP) memory,
like BL1. In these use-cases, it is necessary to initialize the RW sections
in RAM, while leaving the RO sections in place. This patch enable this
use-case with a new build option, BL2_IN_XIP_MEM. For now, this option
is only supported when BL2_AT_EL3 is 1.

Signed-off-by: Jiafei Pan <Jiafei.Pan@nxp.com>

Update Arm TF references to TF-A ...

Update Arm Trusted Firmware references in the upstream documents to
Trusted Firmware-A (TF-A). This is for consistency with and
disambiguation from Trusted Firmware-M (TF-M).

Also update other Arm trademarks, e.g. ARM->Arm, ARMv8->Armv8-A.

Change-Id: I8bb0e18af29c6744eeea2dc6c08f2c10b20ede22
Signed-off-by: Dan Handley <dan.handley@arm.com>
Signed-off-by: David Cunado <david.cunado@arm.com>

Docs: Update design guide for dynamic config ...

This patch updates the `firmware-design.rst` document for
changes in ARM-TF for supporting dynamic configuration features
as presented in `Secure Firmware BoF SFO'17`[1].

The patch also updates the user-guide for 2 build options for FVP
pertaining to dynamic config.

[1] https://www.slideshare.net/linaroorg/bof-device-tree-and-secure-firmware-bof-sfo17310

Change-Id: Ic099cf41e7f1a98718c39854e6286d884011d445
Signed-off-by: Soby Mathew <soby.mathew@arm.com>

Merge pull request #1287 from davidcunado-arm/dc/fix_misra ...

Update ULL() macro and instances of ull to comply with MISRA

Merge pull request #1283 from jeenu-arm/sdei-fixes ...

SDEI fixes

Update ULL() macro and instances of ull to comply with MISRA ...

MISRA C-2012 Rule 7.3 violation: lowercase l shall not be used as literal suffixes.

This patch resolves this for the ULL() macro by using ULL suffix instead
of the ull suffix.

Change-Id: Ia8183c399e74677e676956e8653e82375d0e0a01
Signed-off-by: David Cunado <david.cunado@arm.com>

SDEI: Add prioritisation clarification ...

To make exception handling amongst Secure components, require that SDEI
exception priorities must be assigned the lowest among Secure
priorities. Clarify documentation to this effect.

Change-Id: I92524b7b7e9b3fa06a10c86372bc3c4dd18c00ad
Signed-off-by: Jeenu Viswambharan <jeenu.viswambharan@arm.com>

BL1: Deprecate the `bl1_init_bl2_mem_layout()` API ...

The `bl1_init_bl2_mem_layout()` API is now deprecated. The default weak
implementation of `bl1_plat_handle_post_image_load()` calculates the
BL2 memory layout and populates the same in x1(r1). This ensures
compatibility for the deprecated API.

Change-Id: Id44bdc1f572dc42ee6ceef4036b3a46803689315
Signed-off-by: Soby Mathew <soby.mathew@arm.com>

Add image_id to bl1_plat_handle_post/pre_image_load() ...

This patch adds an argument to bl1_plat_post/pre_image_load() APIs
to make it more future proof. The default implementation of
these are moved to `plat_bl1_common.c` file.

These APIs are now invoked appropriately in the FWU code path prior
to or post image loading by BL1 and are not restricted
to LOAD_IMAGE_V2.

The patch also reorganizes some common platform files. The previous
`plat_bl2_el3_common.c` and `platform_helpers_default.c` files are
merged into a new `plat_bl_common.c` file.

NOTE: The addition of an argument to the above mentioned platform APIs
is not expected to have a great impact because these APIs were only
recently added and are unlikely to be used.

Change-Id: I0519caaee0f774dd33638ff63a2e597ea178c453
Signed-off-by: Soby Mathew <soby.mathew@arm.com>

bl1: add bl1_plat_handle_{pre,post}_image_load() ...

Just like bl2_, add pre/post image load handlers for BL1.  No argument
is needed since BL2 is the only image loaded by BL1.

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

bl2: add bl2_plat_handle_pre_image_load() ...

There are cases where we need to manipulate image information before
the load.  For example, for decompressing data, we cannot load the
compressed images to their final destination.  Instead, we need to
load them to the temporary buffer for the decompressor.

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

Merge pull request #1193 from jwerner-chromium/JW_coreboot ...

New console API and coreboot support [v4]

Add default crash console code to hook up to new console API ...

This patch expands the weak stubs for the plat_crash_console_xxx
functions in common platform code to use the new console API for crash
output. This should make crash console output "just work" for most cases
without the need for the platform to explicitly set up a crash console.
For cases where the normal console framework doesn't work (e.g. very
early crashes, before the platform can register any consoles), platforms
are still able to override the functions just like before.

This feature requires the MULTI_CONSOLE_API compile-time flag to work.
For builds which don't have it set, this patch has no practical effect.

Change-Id: I80dd161cb43f9db59a0bad2dae33c6560cfac584
Signed-off-by: Julius Werner <jwerner@chromium.org>

Merge pull request #1200 from robertovargas-arm/bl2-el3 ...

Add BL2_AT_EL3 build option