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synquacer supports direct entry to BL31 without BL1 and BL2 as
SCP firmware does similar work. So this patch adds BL31 stub APIs.
Signed-off-by: Sumit Garg <sumit.garg@linaro.org>

TI K3 platform support

Build: add cpp build processing for dtb

rpi3: BL32 optee support

Sgi 575/dyncfg

While it would be useful to have a device tree based build, the
required components are not in place yet, so support just a simple
statically defined configuration to begin with.
Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Andrew F. Davis <afd@ti.com>

These functions are used for the PSCI implementation and are needed to
build BL31, but we cannot implement them until we add several more drivers
related to ti-sci so these are only stubs for now.
Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Benjamin Fair <b-fair@ti.com>
Signed-off-by: Andrew F. Davis <afd@ti.com>

Do proper initialization of GIC V3. This will allow CP15 access to GIC
from "normal world" (aka HLOS) via mrc/mcr calls.

K3 SoC family uses GICv3 compliant GIC500 without compatibility for
legacy GICv2.
Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Benjamin Fair <b-fair@ti.com>
Signed-off-by: Andrew F. Davis <afd@ti.com>

Provide K3_TIMER_FREQUENCY for the platform configuration if the GTC
clock is selected statically and override option if the platform has a
different configuration.
Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Benjamin Fair <b-fair@ti.com>

Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Benjamin Fair <b-fair@ti.com>
Signed-off-by: Andrew F. Davis <afd@ti.com>

This library will be used to properly set up mappings from different
bootloaders at different exception levels. It ensures that memory mapped
devices such as UARTs are still accessible and memory regions have the
correct access permissions.
Signed-off-by: Benjamin Fair <b-fair@ti.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Andrew F. Davis <afd@ti.com>

These functions describe the layout of the cores and clusters in order to
support the PSCI framework.
Signed-off-by: Benjamin Fair <b-fair@ti.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Andrew F. Davis <afd@ti.com>

Because there is no BL2, BL31 must determine the entrypoint and memory
location of BL32 and BL33 on its own.

BL32_BASE and PRELOADED_BL33_BASE will be set in the corresponding board
makefile. We also allow a DTB address to be specified for cases when BL33
is a Linux image.

NOTE: It is possible to pull in this information from device tree as
well, however libfdt does not contain the required hooks to make this
happen at this point in time.
Signed-off-by: Benjamin Fair <b-fair@ti.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Andrew F. Davis <afd@ti.com>

The K3 family of SoCs has multiple interconnects. The key interconnect
for high performance processors is the MSMC3 interconnect. This is
an io-coherent interconnect which exports multiple ports for each
processor cluster.

Sometimes, port 0 of the MSMC may not have an ARM cluster OR is isolated
such that the instance of ATF does not manage it. Define macros
in platform_def.h to help handle this.
Signed-off-by: Benjamin Fair <b-fair@ti.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Andrew F. Davis <afd@ti.com>

Create the baseline Makefile, platform definitions file and platform
specific assembly macros file. This includes first set of constants
for the platform including cache sizes and linker format and a stub for
BL31 and the basic memory layout

K3 SoC family of processors do not use require a BL1 or BL2 binary,
since such functions are provided by an system controller on the SoC.
This lowers the burden of ATF to purely managing the local ARM cores
themselves.
Signed-off-by: Benjamin Fair <b-fair@ti.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Andrew F. Davis <afd@ti.com>

Add NXP's i.MX8QX and i.MX8QM SoC support

Panic in BL1 when TB_FW_CONFIG is invalid

cpulib: Add ISBs or comment why they are unneeded

 plat/arm: Migrate AArch64 port to the multi console driver

xlat_v2: add a check on mm_cursor->size to avoid infinite loop

Change-Id: I18a41bb9fedda635c3c002a7f112578808410ef6
Signed-off-by: Dimitris Papastamos <dimitris.papastamos@arm.com>

Describe how to use BL32 build variable to load OP-TEE into FIP.
Signed-off-by: Ying-Chun Liu (PaulLiu) <paulliu@debian.org>

Support for loading optee images as BL32 secure payload.
Signed-off-by: Ying-Chun Liu (PaulLiu) <paul.liu@linaro.org>

The old API is deprecated and will eventually be removed.

Arm platforms now use the multi console driver for boot and runtime
consoles. However, the crash console uses the direct console API because
it doesn't need any memory access to work. This makes it more robust
during crashes.

The AArch32 port of the Trusted Firmware doesn't support this new API
yet, so it is only enabled in AArch64 builds. Because of this, the
common code must maintain compatibility with both systems. SP_MIN
doesn't have to be updated because it's only used in AArch32 builds.
The TSP is only used in AArch64, so it only needs to support the new
API without keeping support for the old one.

Special care must be taken because of PSCI_SYSTEM_SUSPEND. In Juno, this
causes the UARTs to reset (except for the one used by the TSP). This
means that they must be unregistered when suspending and re-registered
when resuming. This wasn't a problem with the old driver because it just
restarted the UART, and there were no problems associated with
registering and unregistering consoles.

The size reserved for BL2 has been increased.

Change-Id: Icefd117dd1eb9c498921181a21318c2d2435c441
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>

Allwinner platform support

NXP's i.MX8QM is an ARMv8 SoC with 2 clusters, 2 Cortex-A72
cores in one cluster and 4 Cortex-A53 in the other cluster,
and also has system controller (Cortex-M4) inside, documentation
can be found in below link:

https://www.nxp.com/products/processors-and-microcontrollers/


applications-processors/i.mx-applications-processors/i.mx-8-processors:IMX8-SERIES

This patch adds support for booting up SMP linux kernel (v4.9).
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>

NXP's i.MX8QX is an ARMv8 SoC with 4 Cortex-A35 cores and
system controller (Cortex-M4) inside, documentation can
be found in below link:

https://www.nxp.com/products/processors-and-microcontrollers/


applications-processors/i.mx-applications-processors/i.mx-8-processors:IMX8-SERIES

This patch adds support for booting up SMP linux kernel (v4.9).
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>

This patch adds support for NXP's imx SoC common
function support like topology, gic implementation.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>

Add NXP's imx SoC debug uart driver.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>

NXP's i.MX8 SoCs have system controller (M4 core)
which takes control of clock management, power management,
partition management, PAD management etc., other
clusters like Cortex-A35 can send out command via MU
(Message Unit) to system controller for clock/power
management etc..

This patch adds basic IPC(inter-processor communication) support.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>

This is an add-on feature that allows processing
device tree with external includes.

"-Iinclude" is also added to INCLUDES.
It allows inclusion of dt-bindings files either in dts files or drivers,
as those files will be in include/dt-bindings/.

"-i fdts" is added to the DTC command line.
As the pre-processed files are in build directory, the DT source directory
has to be explicitely included, to manages /include/ directives.

fixes arm-software/tf-issues#595
Signed-off-by: Lionel Debieve <lionel.debieve@st.com>
Signed-off-by: Yann Gautier <yann.gautier@st.com>

SPM: Refactor entry and exit of the SP

Genmask

Only use synchronous calls to enter the Secure Partition in order to
simplify the SMC handling code.

Change-Id: Ia501a045585ee0836b9151141ad3bd11d0971be2
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>

In Arm platforms, when using dynamic configuration, the necessary
parameters are made available as a DTB. The DTB is loaded by BL1 and,
later on, is parsed by BL1, BL2 or even both, depending on when
information from the DTB is needed.

When the DTB is going to be parsed, it must be validated first, to
ensure that it is properly structured. If an invalid DTB is detected
then:
  - BL1 prints a diagnostic but allows execution to continue,
  - BL2 prints a diagnostic and panics.

Now the behaviour of BL1 is changed so for it also to panic. Thus, the
behaviour of BL1 and BL2 is now similar.

Keep in mind that if BL1 only loads the DTB but it doesn't need to
read/write it, then it doesn't validate it. The validation is done only
when the DTB is actually going to be accessed.

Change-Id: Idcae6092e6dbeab7248dd5e041d6cbb7784fe410
Signed-off-by: John Tsichritzis <john.tsichritzis@arm.com>

Some peripherals are TrustZone aware, so they need to be configured to
be accessible from non-secure world, as we don't need any of them being
exclusive to the secure world.
This affects some clocks, DMA channels and the Secure Peripheral
Controller (SPC). The latter controls access to most devices, but is not
active unless booting with the secure boot fuse burnt.
Signed-off-by: Andre Przywara <andre.przywara@arm.com>

The reset vector entry point is preserved across CPU resets, so it only
needs to be set once at boot.

Hotplugged CPUs are not actually powered down, but are put in a wfi with
the GIC disconnected.

With this commit, Linux is able to enable, hotplug and use all four CPUs.
Signed-off-by: Samuel Holland <samuel@sholland.org>
Signed-off-by: Andre Przywara <andre.przywara@arm.com>

sun50i_cpu_on will be used by the PSCI implementation to initialize
secondary cores for SMP. Unfortunately, sun50i_cpu_off is not usable by
PSCI directly, because it is not possible for a CPU to use this function
to power itself down. Power cannot be shut off until the outputs are
clamped, and MMIO does not work once the outputs are clamped.

But at least CPU0 can shutdown the other cores early in the BL31 boot
process and before shutting down the system.
Signed-off-by: Samuel Holland <samuel@sholland.org>
Signed-off-by: Andre Przywara <andre.przywara@arm.com>

The Allwinner A64 SoC is quite popular on single board computers.
It comes with four Cortex-A53 cores in a singe cluster and the usual
peripherals for set-top box/tablet SoC.

The ATF platform target is called "sun50i_a64".

[Andre: adapted to amended directory layout, removed unneeded definitions ]
Signed-off-by: Samuel Holland <samuel@sholland.org>
Signed-off-by: Andre Przywara <andre.przywara@arm.com>

This platform supports Allwinner's SoCs with ARMv8 cores. So far they
all sport a single cluster of Cortex-A53 cores.

"sunxi" is the original code name used for this platform, and since it
appears in the Linux kernel and in U-Boot as well, we use it here as a
short file name prefix and for identifiers.

This port includes BL31 support only. U-Boot's SPL takes the role of the
primary loader, also doing the DRAM initialization. It then loads the
rest of the firmware, namely ATF and U-Boot (BL33), then hands execution
over to ATF.

This commit includes the basic platform code shared across all SoCs.
There is no platform.mk yet.

[Andre: moved files into proper directories, supported RESET_TO_BL31,
	various clean ups and simplifications ]
Signed-off-by: Samuel Holland <samuel@sholland.org>
Signed-off-by: Andre Przywara <andre.przywara@arm.com>