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This patch adds support to enter/exit to/from cluster idle power
state on Tegra210 platforms that do not load BPMP firmware.

The CPU initates the cluster idle sequence on the last standing
CPU, by following these steps:

Entry
-----
* stop other CPUs from waking up
* program the PWM pinmux to tristate for OVR PMIC
* program the flow controller to enter CC6 state
* skip L1 $ flush during cluster power down, as L2 $ is inclusive
  of L1 $ on Cortex-A57 CPUs

Exit
----
* program the PWM pinmux to un-tristate for OVR PMIC
* allow other CPUs to wake up

This patch also makes sure that cluster idle state entry is not
enabled until CL-DVFS is ready.

Change-Id: I54cf31bf72b4a09d9bf9d2baaed6ee5a963c7808
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>

This patch adds a helper function to find the last standing CPU
in a cluster.

Change-Id: Id018f1958f458c772c7b0c52af8ddf7532b1cec5
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>

This patch moves the PLAT_PHY_ADDR_SPACE_SIZE & PLAT_VIRT_ADDR_SPACE
macros to tegra_def.h, to define the virtual/physical address space
size on the platform.

Change-Id: I1c5d264c7ffc1af0e7b14cc16ae2c0416efc76f6
Signed-off-by: Steven Kao <skao@nvidia.com>

This patch organizes the memory and mmio maps linearly, to make the
mmap_add_region process faster. The microsecond timer has been moved
to individual platforms instead of making it a common step, as it
further speeds up the memory map creation process.

Change-Id: I6fdaee392f7ac5d99daa182380ca9116a001f5d6
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>

This patch enables the watchdog timer's interrupt as an FIQ
interrupt to the CPU. The interrupt generated by the watchdog
is connected to the flow controller for power management reasons,
and needs to be routed to the GICD for it to reach the CPU.

Change-Id: I9437b516da2c5d763eca72694ed7f3c7389b3d9e
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>

This patch adds helper functions to help platforms with cluster state entry
and exit decisions.

* tegra_fc_ccplex_pgexit_lock(): lock CPU power ungate
* tegra_fc_ccplex_pgexit_unlock(): unlock CPU power ungate
* tegra_fc_is_ccx_allowed(): CCx state entry allowed on this CPU?

Change-Id: I6490d34bf380dc03ae203eb3028f61984f06931c
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>

This patch removes the error print displayed when bpmp init
fails. On platforms that do not load the bpmp firmware, this
print is seen on every cluster idle and powerdown request,
cluttering the logs.

Change-Id: I9e30007a913080406052fc32d5360ff70a019d75
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>

This patch adds support to handle following TLK SMCs:
{TLK_SS_REGISTER_HANDLER, TLK_REGISTER_NS_DRAM_RANGES, TLK_SET_ROOT_OF_TRUST}

These SMCs need to be supported in ATF in order to forward them to
TLK. Otherwise, these functionalities won't work.

Brief:
TLK_SS_REGISTER_HANDLER: This SMC is issued by TLK Linux Driver to
set up secure storage buffers.

TLK_REGISTER_NS_DRAM_RANGES: Cboot performs this SMC during boot to
pass NS memory ranges to TLK.

TLK_SET_ROOT_OF_TRUST: Cboot performs this SMC during boot to pass
Verified Boot parameters to TLK.

Change-Id: I18af35f6dd6f510dfc22c1d1d1d07f643c7b82bc
Reviewed-on: https://git-master.nvidia.com/r/1643851

Signed-off-by: Mihir Joshi <mihirj@nvidia.com>

This patch adds support to handle secure PPIs for Tegra watchdog timers. This
functionality is currently protected by the ENABLE_WDT_LEGACY_FIQ_HANDLING
configuration variable and is only enabled for Tegra210 platforms, for now.

Change-Id: I0752ef54a986c58305e1bc8ad9be71d4a8bbd394
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>

On earlier Tegra platforms, e.g. Tegra210, the watchdog timer's FIQ interrupt
is not direclty wired to the GICD. It goes to the flow controller instead, for
power state management. But the flow controller can route the FIQ to the GICD,
as a PPI, which can then get routed to the target CPU.

This patch adds routines to enable/disable routing the legacy FIQ used by
the watchdog timers, to the GICD.

Change-Id: Idd07c88c8d730b5f0e93e3a6e4fdc59bdcb2161b
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>

Whenever the VPR memory is resized, the GPU is put into reset first
and then the new VPR parameters are programmed to the memory controller
block. There exists a scenario, where the GPU might be out before we
program the new VPR parameters. This means, the GPU would still be
using older settings and leak secrets.

This patch puts the GPU back into reset, if it is out of reset after
resizing VPR, to mitigate this hole.

Change-Id: I38a1000e3803f80909efcb02e27da4bd46909931
Signed-off-by: Jeetesh Burman <jburman@nvidia.com>

This patch updates the secure interrupt handler to mark the interrupt
as complete in case the NS world has not registered a handler.

Change-Id: Iebe952305f7db46375303699b6150611439475df
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>

This patch adds support to the bpmp_ipc driver to allow clients to
enable/disable clocks to hardware blocks. Currently, the API only
supports SE devices.

Change-Id: I9a361e380c0bcda59f5a92ca51c86a46555b2e90
Signed-off-by: steven kao <skao@nvidia.com>

The GICD registers are 32-bits wide whereas the crash handler was reading
them as 64-bit ones. This patch fixes the code to read the GICD registers,
32-bits at a time, from the paltform's crash handler.

Change-Id: If3d6608529684ecc02be6a1b715012310813b2a4
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>

This patch adds a default implementation for the platform specific
CPU standby power handler. Tegra SoCs can override this handler
with their own implementations.

Change-Id: I91e513842f194b1e2b1defa2d833bb4d9df5f06b
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>

Modifying smmu macros to pass base address of smmu so that it can be
used with multiple smmus.

Added macro for combining smmu backup regs that can be used for multiple
smmus.

Change-Id: I4f3bb83d66d5df14a3b91bc82f7fc26ec8e4592e
Signed-off-by: Pritesh Raithatha <praithatha@nvidia.com>

doc: Fix broken code blocks in coding guidelines

Sections 2.2, 2.3 and 2.4 contained example code blocks that were not
being formatted properly due to missing newlines.

Change-Id: I0dbce90c931cf69e4f47d2ccbcc8bc0e20f8fd66
Signed-off-by: Paul Beesley <paul.beesley@arm.com>

Remove support for the SMC Calling Convention 2.0

Armada8k GPIO Register macro fix

Arm/master/fixes v2.0.0

lib/xlat_tables: Add support for ARMv8.4-TTST

Move coding guidelines into docs directory

mmc: correctly check ret in mmc_fill_device_info

This reverts commit 2f370465

 ("Add support for the SMC Calling
Convention 2.0").

SMCCC v2.0 is no longer required for SPM, and won't be needed in the
future. Removing it makes the SMC handling code less complicated.

The SPM implementation based on SPCI and SPRT was using it, but it has
been adapted to SMCCC v1.0.

Change-Id: I36795b91857b2b9c00437cfbfed04b3c1627f578
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>

ARMv8.4-TTST (Small Translation tables) relaxes the lower limit on the
size of translation tables by increasing the maximum permitted value
of the T1SZ and T0SZ fields in TCR_EL1, TCR_EL2, TCR_EL3, VTCR_EL2 and
VSTCR_EL2.

This feature is supported in AArch64 state only.

This patch adds support for this feature to both versions of the
translation tables library. It also removes the static build time
checks for virtual address space size checks to runtime assertions.

Change-Id: I4e8cebc197ec1c2092dc7d307486616786e6c093
Signed-off-by: Sathees Balya <sathees.balya@arm.com>

rockchip: Fix GICv2 interrupts

Add power optimization for i.MX8QM/i.MX8QX

rpi3: Remove duplicate initialization for BL32_IMAGE_ID and mark one more function as static.

Change some vars and functions to be static.

tools/fiptool: Fix UUID parsing in blob handling

This patch adds more details on #include directive use, including (pun
not intended) the desired ordering, grouping and variants (<> or "").

Change-Id: Ib024ffc4d3577c63179e1bbc408f0d0462026312
Signed-off-by: Paul Beesley <paul.beesley@arm.com>

This patch attempts to make the guidelines clearer by reordering
the sections and grouping similar topics.

Change-Id: I1418d6fc060d6403fe3e1978f32fd54b8793ad5b
Signed-off-by: Paul Beesley <paul.beesley@arm.com>

Adds a link from user-guide.rst to coding-guidelines.rst and merges
the information about using checkpatch from both files into the user
guide document.

Change-Id: Iffbb4225836a042d20024faf28b8bdd6b2c4043e
Signed-off-by: Paul Beesley <paul.beesley@arm.com>

Change-Id: I083f673f37495d2e53c704a43a0892231b6eb281
Signed-off-by: Paul Beesley <paul.beesley@arm.com>

Change-Id: Id0e6d272b6d3d37eab785273f9c12c093191f3fc
Signed-off-by: Paul Beesley <paul.beesley@arm.com>

This content has been imported and adapted from the TF GitHub wiki
article 'ARM-Trusted-Firmware-Coding-Guidelines'.

The aim is to increase the visibility of the coding guidelines by
including them as part of the documentation that is within the TF
repository.

Additionally, the documentation can then be linked to by other
documents in the docs/ directory without worrying about broken links
to, for example, the external wiki.

Change-Id: I9d8cd6b5117b707c1a113baeba7fc5e1b4bf33bc
Signed-off-by: Paul Beesley <paul.beesley@arm.com>

Commit 03364865

 ("Make TF UUID RFC 4122 compliant") changed the scanf
parsing string to handle endianness correctly.
However that changed the number of items sscanf handles, without
adjusting the sanity check just below.

Increase the expected return value from 11 to 16 to let fiptool handle
UUIDs given as blob parameters correctly again.
Signed-off-by: Andre Przywara <andre.przywara@arm.com>

Clean up the NOTICE() and FATAL_MSG() outputs, so that they contain
proper newlines and BL2 prefixes.
Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>

Method cpld_reset_cpu of bl31 is called from the Linux kernel and uses
GPIO6, GPIO2 pins as SPI bus lines to control the CPLD device. But in the
kernel GPIO6_8 pin are initialized to work in interrupt mode instead of
the input/output mode. This leads to the fact that the SPI bus becomes
non-functional. In this patch we switch the GPIO6_8 pin back to the
input-output mode.
Signed-off-by: Sergii Boryshchenko <sergii.boryshchenko@globallogic.com>
Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>