Refactor SPSR initialisation code ...

Change-Id: Ic3b30de13e314efca30fc71370227d3e76f1148b
Signed-off-by: John Tsichritzis <john.tsichritzis@arm.com>

SSBS: init SPSR register with default SSBS value ...

This patch introduces an additional precautionary step to further
enhance protection against variant 4. During the context initialisation
before we enter the various BL stages, the SPSR.SSBS bit is explicitly
set to zero. As such, speculative loads/stores are by default disabled
for all BL stages when they start executing. Subsequently, each BL
stage, can choose to enable speculative loads/stores or keep them
disabled.

This change doesn't affect the initial execution context of BL33 which
is totally platform dependent and, thus, it is intentionally left up to
each platform to initialise.

For Arm platforms, SPSR.SSBS is set to zero for BL33 too. This means
that, for Arm platforms, all BL stages start with speculative
loads/stores disabled.

Change-Id: Ie47d39c391d3f20fc2852fc59dbd336f8cacdd6c
Signed-off-by: John Tsichritzis <john.tsichritzis@arm.com>

Merge "intel: Adds support for Agilex platform" into integration

Merge "doc: Complete the storage abstraction layer doc" into integration

doc: Complete the storage abstraction layer doc ...

Add uml sequence and class diagram to illustrate the behavior of the
storage abstraction layer.

Change-Id: I338262729f8034cc3d3eea1d0ce19cca973a91bb
Signed-off-by: Louis Mayencourt <louis.mayencourt@arm.com>

intel: Adds support for Agilex platform ...

Signed-off-by: Hadi Asyrafi <muhammad.hadi.asyrafi.abdul.halim@intel.com>
Change-Id: Ib2ad2068abdf0b204c5cb021ea919581adaca4ef

Merge "backtrace: Strip PAC field when PAUTH is enabled" into integration

backtrace: Strip PAC field when PAUTH is enabled ...

When pointer authentication is enabled, the LR value saved on the stack
contains a Pointer Authentication Code (PAC). It must be stripped to
retrieve the return address.

The PAC field is stored on the high bits of the address and defined as:
- PAC field = Xn[54:bottom_PAC_bit], when address tagging is used.
- PAC field = Xn[63:56, 54:bottom_PAC_bit], without address tagging.

With bottom_PAC_bit = 64 - TCR_ELx.TnSZ

Change-Id: I21d804e58200dfeca1da4c2554690bed5d191936
Signed-off-by: Louis Mayencourt <louis.mayencourt@arm.com>

Merge "plat/arm: Introduce A5 DesignStart platform." into integration

Merge "doc: Generate PlantUML diagrams automatically" into integration

Merge "console: update skeleton" into integration

Merge changes I68941876,Ib7961812,I758661d3,I4f3e3812,I9b26b838, ... into integration ...

* changes:
  rcar_gen3: drivers: ddr-a: Fix E3 DDR init coding style
  rcar_gen3: drivers: ddr-a: Pass ddrBackup around
  rcar_gen3: drivers: ddr-a: Inline ddr_init_e3.h
  rcar_gen3: drivers: ddr-a: Fix V3M DDR init coding style
  rcar_gen3: drivers: ddr-a: Fix D3 DDR init coding style
  rcar_gen3: drivers: ddr-a: Replace {Read,Write}Reg_32() with mmio_{read,write}_32()
  rcar_gen3: drivers: ddr-a: Unify register definitions

Merge "rcar_gen3: drivers: ddr: Replace BITn with BIT(n) macro" into integration

plat/arm: Introduce A5 DesignStart platform. ...

This patch adds support for Cortex-A5 FVP for the
DesignStart program. DesignStart aims at providing
low cost and fast access to Arm IP.

Currently with this patch only the primary CPU is booted
and the rest of them wait for an interrupt.

Signed-off-by: Usama Arif <usama.arif@arm.com>
Change-Id: I3a2281ce6de2402dda4610a89939ed53aa045fab

console: update skeleton ...

Update the skeleton implementation of the console interface.

The 32 bit version was outdated and has been copied from the 64 bit
version.

Change-Id: Ib3e4eb09402ffccb1a30c703a53829a7bf064dfe
Signed-off-by: Ambroise Vincent <ambroise.vincent@arm.com>

Merge changes from topic "jc/shift-overflow" into integration ...

* changes:
  Enable -Wshift-overflow=2 to check for undefined shift behavior
  Update base code to not rely on undefined overflow behaviour
  Update hisilicon drivers to not rely on undefined overflow behaviour
  Update synopsys drivers to not rely on undefined overflow behaviour
  Update imx platform to not rely on undefined overflow behaviour
  Update mediatek platform to not rely on undefined overflow behaviour
  Update layerscape platform to not rely on undefined overflow behaviour
  Update intel platform to not rely on undefined overflow behaviour
  Update rockchip platform to not rely on undefined overflow behaviour
  Update renesas platform to not rely on undefined overflow behaviour
  Update meson platform to not rely on undefined overflow behaviour
  Update marvell platform to not rely on undefined overflow behaviour

Merge "synquacer: Fix compilation fail for SPM support build config" into integration

rcar_gen3: drivers: ddr-a: Fix E3 DDR init coding style ...

Coding style cleanup, no functional change.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Change-Id: I689418768e87a8c1b6eeeb9f1a48dfb333908017

rcar_gen3: drivers: ddr-a: Pass ddrBackup around ...

Pass the ddrBackup variable around instead of making it a global variable.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Change-Id: Ib796181247712e464b77f5f8be5f851745727d74
---
NOTE: The camelcase is fixed in later patch.

rcar_gen3: drivers: ddr-a: Inline ddr_init_e3.h ...

Partly inline ddr_init_e3.h into ddr_init_e3.c . Drop duplicate
INITDRAM_* macros, which are defined in boot_init_dram.h .

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Change-Id: I758661d337a86b6a07f82cd4067fbc149cbaed1e

rcar_gen3: drivers: ddr-a: Fix V3M DDR init coding style ...

Coding style cleanup, no functional change.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Change-Id: I4f3e3812ffaa24fec50857756539b563eff33cdd

rcar_gen3: drivers: ddr-a: Fix D3 DDR init coding style ...

Coding style cleanup, no functional change.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Change-Id: I9b26b838e8c45d9b4f53c67663ec94002dd9edfe

rcar_gen3: drivers: ddr-a: Replace {Read,Write}Reg_32() with mmio_{read,write}_32() ...

Replace ad-hoc register accessors with generic ones, remove the ad-hoc
implementation. No functional change.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Change-Id: I21446a00a38c6a39d6a48652c34f59814074e831

rcar_gen3: drivers: ddr-a: Unify register definitions ...

Unify boot_init_dram_regdef_*.h into boot_init_dram_regdef.h and
clean up it's coding style a bit.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Change-Id: Iae3375969c05f80209ebf7b1ebc3633a7f6317ff

rcar_gen3: drivers: ddr: Replace BITn with BIT(n) macro ...

Remove the ad-hoc BITn macros and replace them with generic BIT(n) macro.
No functional change.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Change-Id: I5d0b44d6cba5a69895fed505f6ff780d3574907f

synquacer: Fix compilation fail for SPM support build config ...

Fix the header file path

Signed-off-by: Madhukar Pappireddy <madhukar.pappireddy@arm.com>
Change-Id: I73a92a3f0049ecbda7eade452405927c04048e01

doc: Generate PlantUML diagrams automatically ...

Currently we have some pre-rendered versions of certain diagrams
in SVG format. These diagrams have corresponding PlantUML source
that can be rendered automatically as part of the documentation
build, removing the need for any intermediate files.

This patch adds the Sphinx "plantuml" extension, replaces
references to the pre-rendered SVG files within the documents,
and finally removes the SVG files and helper script.

New requirements for building the docs are the
"sphinxcontrib-plantuml" Python module (added to the pip
requirements.txt file) and the Graphviz package (provides the
"dot" binary) which is in the Ubuntu package repositories.

Change-Id: I24b52ee40ff79676212ed7cff350294945f1b50d
Signed-off-by: Paul Beesley <paul.beesley@arm.com>

Merge changes I94acd1bb,I0ece5226,I82d0a213,Ia4fc9456,Ic9fb7ed1 into integration ...

* changes:
  rcar_gen3: plat: Update IPL and Secure Monitor Rev2.0.4
  rcar_gen3: drivers: rpc: Modify PFC code
  rcar_gen3: drivers: rpc: Change RPC PHY calibration setting
  rcar_gen3: drivers: ddr-b: Update DDR setting for H3, M3, M3N
  rcar_gen3: drivers: ddr-a: Update E3 DDR setting

Merge "Re-apply GIT_COMMIT_ID check for checkpatch" into integration

rcar_gen3: plat: Update IPL and Secure Monitor Rev2.0.4 ...

Update the revision number in the revision management file.

Signed-off-by: Toshiyuki Ogasahara <toshiyuki.ogasahara.bo@hitachi.com>
Signed-off-by: Yoshifumi Hosoya <yoshifumi.hosoya.wj@renesas.com>
Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Change-Id: I94acd1bb53d9d2453e550e2a13b6391b9088ff8d