spd: trusty : fix defects flagged by MISRA scan ...

Main Fixes:

Use int32_t replace int [Rule 4.6]

Added explicit casts (e.g. 0U) to integers in order for them to be
  compatible with whatever operation they're used in [Rule 10.1]

Force operands of an operator to the same type category [Rule 10.4]

Fixed if statement conditional to be essentially boolean [Rule 14.4]

Voided non c-library functions whose return types are not used
[Rule 17.7]

Change-Id: I98caa330c371757eb2dfb9438448cb99115ed907
Signed-off-by: Anthony Zhou <anzhou@nvidia.com>

Tegra: memctrl_v2: allow CPU accesses to TZRAM ...

This patch enables CPU access configuration register to allow
accesses to the TZRAM aperture on chips after Tegra186.

Change-Id: I0898582f8bd6fd35360ecf8ca5cee21fe35f7aab
Signed-off-by: Steven Kao <skao@nvidia.com>

Tegra: lib: debug: fix MISRA violation Rule 21.6 ...

MISRA Rule 21.6, The standard library input/output functions
shall not be used.

This patch removes headers that are not really needed.

Change-Id: I746138ce7ee95d7ca985d020f89b2738d997a7a2
Signed-off-by: Anthony Zhou <anzhou@nvidia.com>

Tegra: memctrl_v2: pack TZDRAM base to RSVD55_SCRATCH ...

This patch saves the TZDRAM_BASE value to secure RSVD55
scratch register. The warmboot code uses this register to
restore the settings on exiting System Suspend.

Change-Id: Id76175c2a7d931227589468511365599e2908411
Signed-off-by: Harvey Hsieh <hhsieh@nvidia.com>

Tegra: enable -nostdlib flag ...

This patch enables the '-nostdlib' flag to instruct the compiler
to not use the standard system libraries and startup files.

Change-Id: Ibf34856f7579ed686280cee19c35d08448cf921c
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>

Tegra186: mce: get the "right" uncore command/response bits ...

This patch corrects the logic to read the uncore command/response bits
from the command/response values. The previous logic tapped into incorrect
bits leading to garbage counter values.

Change-Id: Ib8327ca3cb3d2086bb268e9a5366865cdf35b493
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>

Tegra186: mce: use udelay() to calculate timeouts ...

This patch modifies the timeout loop to use udelay() instead of
mdelay(). This helps with the boot time on some platforms which
issue a lot of MCE calls and every mdelay adds up increasing the
boot time by a lot.

Change-Id: Ic50081b73e1cbc2714361235b5c396e294b8f752
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>

Tegra186: fix MISRA Rule 8.3 violation ...

MISRA Rule 8.3, All declarations of an object or function
shall use the same names and type qualifiers.

This patch removes unused function(s).

Change-Id: I90865c003d46f1dc08bfb5f4fe8a327ea42a2bb7
Signed-off-by: Anthony Zhou <anzhou@nvidia.com>

Helper function to read ID_AFR0_EL1 system register ...

This patch provides helper function to read the ID_AFR0_EL1
system register for platforms.

Change-Id: Id5491b18e3bf9f619d98d6cc8efd9d2cf5918c9d
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>

Tegra: memctrl_v2: platform handlers to program MSS ...

Introduce platform handlers to program the MSS settings.
This allows the current driver to scale to future chips.

Change-Id: I40a27648a1a3c73b1ce38dafddc1babb6f0b0d9b
Signed-off-by: Puneet Saxena <puneets@nvidia.com>
Signed-off-by: Krishna Reddy <vdumpa@nvidia.com>

Merge pull request #1768 from bryanodonoghue/integration+linaro_warp7-tbb ...

Integration+linaro warp7 tbb

Merge pull request #1772 from glneo/clear-proxy-queue ...

TI K3 Clear proxy receive queue on transmit

Merge pull request #1775 from glneo/uart-baud-rate ...

ti: k3: common: Allow customizing UART baud rate using build options

Merge pull request #1774 from glneo/error-message ...

ti: k3: drivers: sec_proxy: Switch error messages

Merge pull request #1771 from glneo/core-shutdown ...

TI K3 Core shutdown changes

Merge pull request #1770 from antonio-nino-diaz-arm/an/spm-mm ...

Undeprecate MM-based SPM

SPM: Rename folder of SPM based on MM ...

This implementation is no longer deprecated.

Change-Id: I68552d0fd5ba9f08fad4345e4657e8e3c5362a36
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>

SPM: Rename SPM_DEPRECATED flag to SPM_MM ...

The SPM implementation based on MM is going to be kept for the
foreseeable future.

Change-Id: I11e96778a4f52a1aa803e7e048d9a7cb24a53954
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
Acked-by: Sumit Garg <sumit.garg@linaro.org>

ti: k3: common: Allow customizing UART baud rate using build options ...

To accommodate scenarios where we want to use a UART baud rate other than
the default 115,200 allow the associated compiler definition to be set
via the K3_USART_BAUD build option by updating the platform make file.

Since the platform make file now also contains the default value (still
115,200), go ahead and remove the redundant definition from the platform
header file.

Suggested-by: Andrew F. Davis <afd@ti.com>
Signed-off-by: Andreas Dannenberg <dannenberg@ti.com>

ti: k3: drivers: ti_sci: Clear receive queue before transmitting ...

Send and receive currently must be be serialized, any message already in
the receive queue when a new message is to be sent will cause a mismatch
with the expected response from this new message. Clear out all messages
from the response queue before sending a new request.

Signed-off-by: Andrew F. Davis <afd@ti.com>
Acked-by: Nishanth Menon <nm@ti.com>

ti: k3: drivers: sec_proxy: Allow clearing a Secure Proxy receive thread ...

It can be needed to discard all messages in a receive queue. This
can be used during some error recovery situations.

Signed-off-by: Andrew F. Davis <afd@ti.com>
Acked-by: Nishanth Menon <nm@ti.com>

ti: k3: common: Use shutdown API for PSCI core poweroff ...

To ensure WFI is reached before the PSC is trigger to power-down
a processor, the shutdonw API must be used.

Signed-off-by: Andrew F. Davis <afd@ti.com>
Acked-by: Nishanth Menon <nm@ti.com>

ti: k3: drivers: ti_sci: Add processor shutdown API ...

This is a pseudo-API command consisting of a wait processor status
command and a set device state command queued back-to-back without
waiting for the System Firmware to ACK either message.

This is needed as the K3 power down specification states the System
Firmware must wait for a processor to be in WFI/WFE before powering
it down. The current implementation of System Firmware does not provide
such a command. Also given that with PSCI the core to be shutdown is the
core that is processing the shutdown request, the core cannot itself wait
for its own WFI/WFE status. To workaround this limitation, we submit
a wait processor status command followed by the actual shutdown command.
The shutdown command will not be processed until the wait command has
finished. In this way we can continue to WFI before the wait command
status has been met or timed-out and the shutdown command is processed.

Signed-off-by: Andrew F. Davis <afd@ti.com>
Acked-by: Nishanth Menon <nm@ti.com>

ti: k3: drivers: ti_sci: Add processor status wait API ...

This TI-SCI API can be used wait for a set of processor status flags to
be set or cleared. The flags are processor type specific. This command
will not return ACK until the specified status is met. NACK will be
returned after the timeout elapses or on error.

Signed-off-by: Andrew F. Davis <afd@ti.com>
Acked-by: Nishanth Menon <nm@ti.com>

ti: k3: drivers: sec_proxy: Switch error messages ...

The logic is correct here, but the error messages are
reversed, switch them.

Signed-off-by: Andrew F. Davis <afd@ti.com>
Acked-by: Nishanth Menon <nm@ti.com>

Remove reference to DISABLE_PEDANTIC ...

This flag was removed in 79eb1aff7850 ("Remove `DISABLE_PEDANTIC` build
option").

Change-Id: Ic3584a4c5f0100ed9e57b068ec672b0baae8cfab
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>

Merge pull request #1764 from vwadekar/tf2.0-tegra-downstream-rebase-1.7.19 ...

Tf2.0 tegra downstream rebase 1.7.19

Merge pull request #1767 from Yann-lms/updates_stm32mp1 ...

Updates for STM32MP1

Tegra: memctrl: clean MC INT status before exit to bootloader ...

This patch cleans the Memory controller's interrupt status
register, before exiting to the non-secure world during
cold boot. This is required as we observed that the MC's
arbitration bit is set before exiting the secure world.

Change-Id: Iacd01994d03b3b9cbd7b8a57fe7ab5b04e607a9f
Signed-off-by: Harvey Hsieh <hhsieh@nvidia.com>

Tegra: use 'PLATFORM_MAX_CPUS_PER_CLUSTER' to calculate core position ...

This patch updates the plat_my_core_pos() and platform_get_core_pos() helper
functions to use the `PLATFORM_MAX_CPUS_PER_CLUSTER` macro to calculate the
core position.

core_pos = CoreId + (ClusterId * PLATFORM_MAX_CPUS_PER_CLUSTER)

Change-Id: Ic49f2fc7ded23bf9484c8fe104025df8884b9faf
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>