BL31: Enable pointer authentication support in warm boot path ...

In the current Pointer Authentication support added in
commit b86048c
PAuth gets enabled in BL31 cold boot entrypoint only,
(see bl31_entrypoint() in bl31\aarch64\bl31_entrypoint.S)
but not in bl31_warm_entrypoint().
This results in EnIA bit [31] in SCTLR_EL3 not being set
and pointer authentication disabled after CPU wake-up event.

Fixes ARM-software/tf-issues#684

Change-Id: I27a67804764dfba2a6d72ca119ca2bcff4f536d6
Signed-off-by: Alexei Fedorov <Alexei.Fedorov@arm.com>

Merge pull request #1847 from jts-arm/mbedtls ...

Remove Mbed TLS dependency from plat_bl_common.c

Merge pull request #1855 from dp-arm/dp/ssbs ...

Ensure proper ID register is checked for feature detection

Merge pull request #1853 from vwadekar/dummy_io_storage ...

Tegra: dummy support for the io_storage backend

Merge pull request #1854 from marex/arm/master/atf-v2.0.1 ...

Arm/master/atf v2.0.1

Merge pull request #1852 from sandrine-bailleux-arm/sb/fix-intmgt-doc ...

Minor fixes in the interrupt framework design guide

Ensure proper ID register is checked for feature detection ...

SSBS support is determined by checking ID_AA64PFR1_EL1 and not
ID_AA64PFR0_EL1.

Fixes ARM-Software/tf-issues#679

Change-Id: I8ecba13b850995ec6a6ede3c2a1e02e69a3a95db
Signed-off-by: Dimitris Papastamos <dimitris.papastamos@arm.com>

rcar_gen3: drivers: pfc: Configure GP5_09 as input on ULCB ...

Configure the GPIO5 09 pin as input on the ULCB board by default,
since the pin is routed on the expansion connector and not connected
to anything by default.

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

rcar_gen3: Add M3-W 3.0 support ...

Add support for the M3W 3.0 SoC and synchronize the upstream ATF with
Renesas downstream ATF release v2.0.1.

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

rcar_gen3: Add myself as a maintainer ...

Add myself into the maintainers file to make Jorge's life easier.

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

Merge pull request #1844 from chandnich/rename_sgiclark ...

css/sgi: replace all uses of Clark with new product names

Merge pull request #1851 from antonio-nino-diaz-arm/an/pauth ...

Correctly check for support of Address Authentication

Merge pull request #1837 from spencercw/master ...

imx: Configure CAAM job rings master ID for i.MX8MQ

Tegra: dummy support for the io_storage backend ...

This patch provides dummy macros and platform files to compile
the io_storage driver backend. This patch is necessary to
remove the "--unresolved=el3_panic" linker flag from Tegra's
makefiles and allow us to revert this workaround, previously
suggested by the ARM toolchain team.

The "--unresolved=el3_panic" flag actually was a big hammer that
allowed Tegra platforms to work with armlink previously but it
masks legit errors with the code as well.

Change-Id: I0421d35657823215229f84231896b84167f90548
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>

Doc: Fix internal links in interrupt framework design guide ...

Some of the sections numbers have been incorrect since the document
structure has changed. Using references to sections rather than
hard-coded section numbers fixes the issue while making it more
future-proof to updates.

Change-Id: I80f5ab6a55a0073b1562a02ce2c9ec7d67cddfff
Signed-off-by: Sandrine Bailleux <sandrine.bailleux@arm.com>

Doc: Fix a formatting glitch ...

While converting the interrupt framework design document from Markdown
to reStructuredText format, see commit 6f6257476754 ("Convert
documentation to reStructuredText"), the structure of the document was
changed and one of the titles got lost. Fix that.

Change-Id: Ib3e6c1f9f01f16108fde3b89ceb624bd54049d2f
Signed-off-by: Sandrine Bailleux <sandrine.bailleux@arm.com>

Merge pull request #1842 from DavidPu/reduce_cyclomatic_complexity_metric ...

Reduce cyclomatic complexity metric

Merge pull request #1815 from Anson-Huang/gic ...

gic: make sure ProcessorSleep bit clear successfully

Merge pull request #1751 from vwadekar/tegra-scatter-file-support ...

Tegra scatter file support

Merge pull request #1849 from loumay-arm/lm/a73_errata ...

Cortex-A73: Implement workaround for errata 852427

Correctly check for support of Address Authentication ...

Check for both IMPLEMENTATION_DEFINED and Architected algorithms of
Address Authentication.

Change-Id: I209dcc6087172cfef7baf8d09e0454628f02cbd0
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>

Merge pull request #1845 from ambroise-arm/av/errata ...

Apply workarounds for errata of Cortex-A53, A55 and A57

Merge pull request #1846 from loumay-arm/lm/mpam ...

MPAM: enable MPAM EL2 traps

Merge pull request #1848 from antonio-nino-diaz-arm/an/docs ...

Minor changes to documentation and comments

imx: make sure GIC redistributor is awake before initialization ...

GICR_WAKER.ProcessorSleep can only be set to zero when:
— GICR_WAKER.Sleep bit[0] == 0.
— GICR_WAKER.Quiescent bit[31] == 0.

On some platforms, when system reboot with GIC in sleep
mode but with power ON, such as on NXP's i.MX8QM, Linux
kernel enters suspend but could be requested to reboot,
and GIC is in sleep mode and it is inside a power domain
which is ON in this scenario, when CPU reset, the GIC
driver trys to set CORE's redistributor interface to awake,
with GICR_WAKER.Sleep bit[0] and GICR_WAKER.Quiescent bit[31]
both set, the ProcessorSleep bit[1] will never be clear
and cause system hang.

This patch makes sure GICR_WAKER.Sleep bit[0] and
GICR_WAKER.Quiescent bit[31] are both zeor before clearing
ProcessorSleep bit[1].

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>

xlat_tables_v2: find VA/idx with helper functions. ...

This patch introduces 2 helper functions 'xlat_tables_find_start_va' and
'xlat_tables_va_to_index' to find the first VA and table index affected by the
specified mmap region. it reduces code duplication and cyclomatic code
complexity in xlat_tables_map/unmap_region functions.

Cyclomatic complexity calculated using 'Coverity'

fixes arm-software/tf-issues#673

Signed-off-by: David Pu <dpu@nvidia.com>

xlat_tables_v2: get unmap action type with helper function. ...

This patch introduces helper function 'xlat_tables_unmap_region_action'
to get the required action type from given arguments when unmapping the
specified region.
it reduces cyclomatic code complexity in xlat_tables_unmap_region function.

Cyclomatic complexity calculated using 'Coverity'

fixes arm-software/tf-issues#673

Signed-off-by: David Pu <dpu@nvidia.com>

Remove Mbed TLS dependency from plat_bl_common.c ...

Due to the shared Mbed TLS heap optimisation introduced in 6d01a463,
common code files were depending on Mbed TLS specific headers. This
dependency is now removed by moving the default, unoptimised heap
implementation inside the Mbed TLS specific files.

Change-Id: I11ea3eb4474f0d9b6cb79a2afd73a51a4a9b8994
Signed-off-by: John Tsichritzis <john.tsichritzis@arm.com>

Minor changes to documentation and comments ...

Fix some typos and clarify some sentences.

Change-Id: Id276d1ced9a991b4eddc5c47ad9a825e6b29ef74
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>

Cortex-A73: Implement workaround for errata 852427 ...

In AArch32, execution of 2 instructions with opposite condition code
might lead to either a data corruption or a CPU deadlock. Set the bit
12 of the Diagnostic Register to prevent this.

Change-Id: I22b4f25fe933e2942fd785e411e7c0aa39d5c1f4
Signed-off-by: Louis Mayencourt <louis.mayencourt@arm.com>