Add missing SPDX header ...

A new file added as part of arm-trusted-firmware#927 was missing the
SPDX license identifier - this patch adds the missing identifier.

Change-Id: Id1355f2bdca930b7e65bb54eff7e6c764ebb0d96
Signed-off-by: David Cunado <david.cunado@arm.com>

Merge pull request #927 from jeenu-arm/state-switch ...

Execution state switch

Use SPDX license identifiers for remaining files ...

Change-Id: I7f54f45db65f32481cc05e1bd2c9c683b756e19a
Signed-off-by: dp-arm <dimitris.papastamos@arm.com>

Merge pull request #918 from rockchip-linux/rk3328 ...

rockchip: rk3328: support rk3328

Revert "rockchip: Remove unused rockchip_pd_pwr_down_wfi function" ...

This reverts commit b6dcbf5.

This function wasn't used when it was removed, but it is needed to
compile the new changes proposed for Rockchip platforms.

Change-Id: Ia5bfe1f8398e08431f96923e2f059a83e5cb78d4
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>

rockchip: rk3328: Add a missing paragraph for copyright notice. ...

Change-Id: I78c7e304d3070f66e2ca3bf838c76ee6a2ae3430
Signed-off-by: tony.xie <tony.xie@rock-chips.com>

Introduce ARM SiP service to switch execution state ...

In AArch64, privileged exception levels control the execution state
(a.k.a. register width) of the immediate lower Exception Level; i.e.
whether the lower exception level executes in AArch64 or AArch32 state.
For an exception level to have its execution state changed at run time,
it must request the change by raising a synchronous exception to the
higher exception level.

This patch implements and adds such a provision to the ARM SiP service,
by which an immediate lower exception level can request to switch its
execution state. The execution state is switched if the request is:

  - raised from non-secure world;

  - raised on the primary CPU, before any secondaries are brought online
    with CPU_ON PSCI call;

  - raised from an exception level immediately below EL3: EL2, if
    implemented; otherwise NS EL1.

If successful, the SMC doesn't return to the caller, but to the entry
point supplied with the call. Otherwise, the caller will observe the SMC
returning with STATE_SW_E_DENIED code. If ARM Trusted Firmware is built
for AArch32, the feature is not supported, and the call will always
fail.

For the ARM SiP service:

  - Add SMC function IDs for both AArch32 and AArch64;
  - Increment the SiP service minor version to 2;
  - Adjust the number of supported SiP service calls.

Add documentation for ARM SiP service.

Fixes ARM-software/tf-issues#436

Change-Id: I4347f2d6232e69fbfbe333b340fcd0caed0a4cea
Signed-off-by: Jeenu Viswambharan <jeenu.viswambharan@arm.com>

Use SPDX license identifiers ...

To make software license auditing simpler, use SPDX[0] license
identifiers instead of duplicating the license text in every file.

NOTE: Files that have been imported by FreeBSD have not been modified.

[0]: https://spdx.org/

Change-Id: I80a00e1f641b8cc075ca5a95b10607ed9ed8761a
Signed-off-by: dp-arm <dimitris.papastamos@arm.com>

Add macro to check whether the CPU implements an EL ...

Replace all instances of checks with the new macro.

Change-Id: I0eec39b9376475a1a9707a3115de9d36f88f8a2a
Signed-off-by: Jeenu Viswambharan <jeenu.viswambharan@arm.com>

Merge pull request #896 from sbranden/tf_issue_461 ...

Move defines in utils.h to utils_def.h to fix shared header compile i…

Tegra210: implement 'get_target_pwr_state' handler ...

This patch implements the handler to calculate the cluster and
system power states for the Tegra210 SoC. The power states
returned by this handler are used by the PSCI library to decide
cache maintenance operations - cluster v cpu.

Change-Id: I93e4139d4cd8a086b51f328e9a76e91428ebcdab
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>

Tegra: fix the NS DRAM address calculation logic ...

This patch fixes the logic used to calculate the end of NS memory
aperture. The functions allows zero sized NS apertures as that is
a valid requirement for some use cases. e.g. VPR resize.

Change-Id: Ie966e0ea2f9c6888d21c38e734003704094b3720
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>

Tegra: memctrl_v2: zero out NS Video memory carveout region ...

The video memory carveout has to be re-sized depending on the Video
content. This requires the NS world to send us new base/size values.
Before setting up the new region, we must zero out the previous memory
region, so that the video frames are not leaked to the outside world.

This patch adds the logic to zero out the previous memory carveout
region.

Change-Id: I471167ef7747154440df5c1a5e015fbeb69d9043
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>

Tegra186: calculate proper power state for cluster/system power down ...

Earlier, we were setting "System Suspend" as the power state for all system
states. This caused incorrect system state during a cluster power down.

This patch fixes this anomaly and sets the correct power state during a
cluster/system power down.

Change-Id: Ibd002930e0ae103e381e0a19670c3c4d057e7cb7
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>

Tegra186: mce: max retries for ARI requests ...

This patch adds max retries for all ARI requests and asserts
if the ARI request is still busy.

Change-Id: I454ad9b557bb59e513e4c0c6f071275c87d0e07a
Signed-off-by: Steven Kao <skao@nvidia.com>
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>

Tegra: memmap Tegra micro-seconds timer controller ...

This patch adds the Tegra micro-seconds controller to the
memory map. This allows us to use the delay_timer functionality.

Change-Id: Ia8b148a871949bfede539974cacbe0e93ec7e77c
Signed-off-by: Steven Kao <skao@nvidia.com>
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>

Tegra: early init the delay timer ...

This patch moves the platform delay timer init to early BL31
platform setup, so that platforms can use the udelay/mdelay
routines in the early init code.

Change-Id: I6fe20b76176ea22589539c180c5b6f9d09eda8de
Signed-off-by: Steven Kao <skao@nvidia.com>
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>

Merge branch 'integration' into tf_issue_461

Move defines in utils.h to utils_def.h to fix shared header compile issues ...

utils.h is included in various header files for the defines in it.
Some of the other header files only contain defines.  This allows the
header files to be shared between host and target builds for shared defines.

Recently types.h has been included in utils.h as well as some function
prototypes.

Because of the inclusion of types.h conflicts exist building host tools
abd these header files now.  To solve this problem,
move the defines to utils_def.h and have this included by utils.h and
change header files to only include utils_def.h and not pick up the new
types.h being introduced.

Fixes ARM-software/tf-issues#461

Signed-off-by: Scott Branden <scott.branden@broadcom.com>

Remove utils_def.h from utils.h

This patch removes utils_def.h from utils.h as it is not required.
And also makes a minor change to ensure Juno platform compiles.

Change-Id: I10cf1fb51e44a8fa6dcec02980354eb9ecc9fa29

Tegra: Control inclusion of helper code used for asserts ...

One assert depends on code that is conditionally compiled based on the
DEBUG define. This patch modifies the conditional inclusion of such code
so that it is based on the ENABLE_ASSERTIONS build option.

Change-Id: Ic5659a3db8632593b9d2e83dac6d30afd87c131d
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>

Tegra: smmu: enable asserts by default ...

This patch enables the assert in the context save routine
by default, for all flavours of the build.

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

Tegra: enable 'ENABLE_ASSERTIONS' for all builds ...

This patch changes the platform Makefile to set `ENABLE_ASSERTIONS` to
1 instead of the deprecated option `ASM_ASSERTION`. This also pulls in
C assertions in release mode.

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

Tegra: group platform settings together ...

This patch groups all the platform configuration macros into
the common platform.mk makefile.

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

rockchip: rk3328: support rk3328 ...

rk3328 is a Quad-core soc and Cortex-a53 inside!
This patch supports the following functions:
1、power up/off cpus
2、suspend/resume cpus
3、suspend/resume system
4、reset system
5、power off system

Change-Id: I60687058d13912c6929293b06fed9c6bc72bdc84
Signed-off-by: tony.xie <tony.xie@rock-chips.com>

CSS: Allow system suspend only via PSCI SYSTEM_SUSPEND API ...

The CSS power management layer previously allowed to suspend system
power domain level via both PSCI CPU_SUSPEND and PSCI SYSTEM_SUSPEND
APIs. System suspend via PSCI CPU_SUSPEND was always problematic to
support because of issues with targeting wakeup interrupts to
suspended cores before the per-cpu GIC initialization is done. This
is not the case for PSCI SYSTEM_SUSPEND API because all the other
cores are expected to be offlined prior to issuing system suspend and
PSCI CPU_ON explicit calls will be made to power them on. Hence the Juno
platform used to downgrade the PSCI CPU_SUSPEND request for system
power domain level to cluster level by overriding the default
`plat_psci_pm_ops` exported by CSS layer.

Given the direction the new CSS platforms are evolving, it is best to
limit the system suspend only via PSCI SYSTEM_SUSPEND API for all
CSS platforms. This patch makes changes to allow system suspend
only via PSCI SYSTEM_SUSPEND API. The override of `plat_psci_ops`
for Juno is removed.

Change-Id: Idb30eaad04890dd46074e9e888caeedc50a4b533
Signed-off-by: Soby Mathew <soby.mathew@arm.com>

Merge pull request #912 from vwadekar/tegra-smmu-ctx-save-robust ...

Tegra: smmu: make the context save sequence robust

Merge pull request #910 from dp-arm/dp/AArch32-juno-port ...

Add AArch32 support for Juno

Merge pull request #902 from vwadekar/tegra186-sip-mce-calls ...

Tegra186: Support AARCH32/64 encoding for MCE calls

Merge pull request #903 from antonio-nino-diaz-arm/an/build-xlat-v1 ...

ARM platforms: Add option to use xlat tables lib v1

Merge pull request #906 from antonio-nino-diaz-arm/an/asserts-release ...

Add `ENABLE_ASSERTIONS` build option