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Valid addresses for GICR base are always a set calculable distance from
the GICD and is based on the number of cores a given instance of GICv3 IP
can support. The formula for the number of address bits is given by the
ARM GIC-500 TRM section 3.2 as 2^(18+log2(cores)) with the MSB set to
one for GICR instances. Holes in the GIC address space are also
guaranteed to safely return 0 on reads. This allows us to support runtime
detection of the GICR base address by starting from GIC base address plus
BIT(18) and walking until the GICR ID register (IIDR) is detected. We
stop searching after BIT(20) to prevent searching out into space if
something goes wrong. This can be extended out if we ever have a device
with 16 or more cores.
Signed-off-by: Andrew F. Davis <afd@ti.com>

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>

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>

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>

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>

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>

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>

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>

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>

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>

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>

This patch moves the TZDRAM base address to SCRATCH55_LO due
to security concerns. The HI and LO address bits are packed
into SCRATCH55_LO for the warmboot firmware to restore.
SCRATCH54_HI is still being used for backward compatibility,
but would be removed eventually.

The scratch registers are populated as:
* RSV55_0 = CFG1[12:0] | CFG0[31:20]
* RSV55_1 = CFG3[1:0]
* RSV54_1 = CFG1[12:0]

Change-Id: Idc20d165d8117488010fcc8dfd946f7ad475da58
Signed-off-by: Harvey Hsieh <hhsieh@nvidia.com>

To deal with upcoming EMC periodic compensation, increase the BPMP timeout
to 2ms.

Change-Id: I8572c031168defd15504d905c4d625f44dd7fa3d
Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>

This patch removes duplicate code from the CPU's power on path. The removed
code is already present as part of PSCI's power on logic.

Change-Id: I4d18a605b219570c6bf997b9e6be6e7853ebf5cd
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>

This patch enables the 'WARMBOOT_ENABLE_DCACHE_EARLY' flag to enable
D-cache early, during the CPU warmboot sequence. This flag is applicable
for platforms like Tegra, which do not require interconnect programming to
enable cache coherency.

Change-Id: Id39471cf0922799960d8f1de6e5e0d605a53f7ca
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>

If ECID is valid, we can use force instantiation
otherwise, we should use reseed for random data
generation for RNG operations in SE context save
DNI because we are not keeping software save
sequence in main.

Change-Id: I73d650e6f45db17b780834b8de4c10501e05c8f3
Signed-off-by: Samuel Payne <spayne@nvidia.com>

* Previous boot loader passes Shared DRAM address
  to be used by Trusted OS to dump its boot timing records
* This patch adds support to pass the parameter
  to Trusted OS during cold boot

Change-Id: I9f95bb6de80b1bbd2d2d6ec42619f895d911b8ed
Signed-off-by: Akshay Sharan <asharan@nvidia.com>

This change ports the software based SE context save routines.
The software implements the context save sequence for SE/SE2 and
PKA1. The context save routine is intended to be invoked from
the ATF SC7 entry.

Change-Id: I9aa156d6e7e22a394bb10cb0c3b05fc303f08807
Signed-off-by: Marvin Hsu <marvinh@nvidia.com>

This patch adds an assert in case the dynamic memmap routine fails.

Change-Id: Idd20debbb8944340f5928c6f2cfea973a63a7b1c
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>

This patch enables prints from asserts() for release/debug builds
on all Tegra platforms.

Change-Id: Ie256437a325a7c5015a10f55aba2287a91b57bca
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>

This patch increases the MAX_MMAP_REGIONS build flag to allow
Tegra210 platforms to dynamically map multiple memory apertures
at the same time. This takes care of scenarios when we get multiple
requests to memmap memory apertures at the same time.

Change-Id: If4fe23b454e7d588e35acfbf024b9ccbb3daccc7
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>

The non secure world would like to profile the boot path for
the EL3 and S-EL1 firmwares. To allow it to do that, a non-secure
DRAM region (4K) is allocated and the base address is passed to
the EL3 firmware.

This patch adds a library to allow the platform code to store the
tag:timestamp pair to the shared memory. The tegra platform code
then uses the `record` method to add timestamps.

Original change by Akshay Sharan <asharan@nvidia.com>

Change-Id: Idbbef9c83ed84a508b04d85a6637775960dc94ba
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>

This patch fixes the logic to validate if a non-secure memory address
overlaps the TZDRAM memory aperture.

Change-Id: I68af7dc6acc705d7b0ee9161c4002376077b46b1
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>

MISRA Rule 10.3, the value of an expression shall not be assigned to
an object with a narrower essential type or of a different essential
type category.

The essential type of a enum member is anonymous enum, the enum member
should be casted to the right type when using it.

Both UL and ULL suffix equal to uint64_t constant in compiler
aarch64-linux-gnu-gcc, to avoid confusing, only keep U and ULL suffix
in platform code. So in some case, cast a constant to uint32_t is
necessary.

Change-Id: I1aae8cba81ef47481736e7f95f53570de7013187
Signed-off-by: Anthony Zhou <anzhou@nvidia.com>

This patch saves the TZSRAM context and takes the SoC into System Suspend
from the "_wfi" handler. This helps us save the entire CPU context from
the TZSRAM, before entering System Suspend. In the previous implementation
we missed saving some part of the state machine context leading to an assert
on System Suspend exit.

Change-Id: I4895a8b4a5e3c3e983c245746ea388e42da8229c
Signed-off-by: Harvey Hsieh <hhsieh@nvidia.com>

This patch enables clocks to the SE and Entropy block and gets them
out of reset, before starting the context save operation.

Change-Id: Ic196be8fb833dfd04c0e8d460c07058429999613
Signed-off-by: Samuel Payne <spayne@nvidia.com>

This patch adds a hook to get the number of smmu devices and
removes the NUM_SMMU_DEVICES macro.

Change-Id: Ia8dba7e9304224976b5da688b9e4b5438f11cc41
Signed-off-by: Steven Kao <skao@nvidia.com>

Macro assert(e) request 'e' is a bool type, if useing other
type, MISRA report a "The Essential Type Model" violation,
Add a judgement to fix the defects, if 'e' is not bool type.

Remove unused code [Rule 2.5]
Fix the essential type model violation [Rule 10.6, 10.7]
Use local parameter to raplace function parameter [Rule 17.8]

Change-Id: Ifce932addbb0a4b063ef6b38349d886c051d81c0
Signed-off-by: Anthony Zhou <anzhou@nvidia.com>

This patch changes direct writes to ACTLR_ELx registers to use
read-modify-write instead.

Change-Id: I6e0eaa6974583f3035cb3724088f3f1c849da229
Signed-off-by: Steven Kao <skao@nvidia.com>

This patch enables the following erratas for Cortex-A57 CPUs:

- ERRATA_A57_806969
- ERRATA_A57_813419
- ERRATA_A57_813420
- ERRATA_A57_826974
- ERRATA_A57_826977
- ERRATA_A57_828024
- ERRATA_A57_829520
- ERRATA_A57_833471

Change-Id: Ib18b7654607b967b70082f683686a16f52637442
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>

Main fixes:

Remove unused type conversion

Fix invalid use of function pointer [Rule 1.3]

Fix variable essential type doesn't match [Rule 10.3]

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

Change-Id: I23994c9d4d6a240080933d848d2b03865acaa833
Signed-off-by: Anthony Zhou <anzhou@nvidia.com>

This patch disables SMMU hardware before suspending the SE
block, for the context save operation to complete. The NS
word will re-enable SMMU when we exit System Suspend.

Change-Id: I4d5cd982ea6780db5c38b124550d847e3928c60d
Signed-off-by: Samuel Payne <spayne@nvidia.com>

Main fixes:

Add suffix U for constant [Rule 10.1]

Match the operands type [Rule 10.4]

Use UL replace U for that constant define that need do "~"
operation [Rule 12.4]

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

Change-Id: Ia1e814ca3890eab7904be9c79030502408f30936
Signed-off-by: Anthony Zhou <anzhou@nvidia.com>

Main fixes:

* Use int32_t replace int, use uint32_t replace unsign int
  [Rule 4.6]
* Add function define to header file [Rule 8.4]
* Added curly braces ({}) around if statements in order to
  make them compound [Rule 15.6]
* Voided non c-library functions whose return types are not used
  [Rule 17.7]

Change-Id: Ifa3ba4e75046697cfede885096bee9a30efe6519
Signed-off-by: Anthony Zhou <anzhou@nvidia.com>

This patch reduces the code complexity for the platform's 'get_target_pwr_state'
handler, by reducing the number of 'if' conditions and adding helper functions
to calculate power state for the cluster/system.

Tested with 'pmccabe'

Change-Id: I32fa4c814bd97f620f2003fa39f1bfceae563771
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>

Main fixes:

Add parentheses to avoid implicit operator precedence [Rule 12.1]

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

Added curly braces ({}) around if statements in order to
make them compound [Rule 15.6]

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

Bug 200272157

Change-Id: Ic3ab5a3de95aeb6d2265df940f7fb35ea0f19ab0
Signed-off-by: Anthony Zhou <anzhou@nvidia.com>

This patch adds the driver for the general purpose DMA hardware
block on newer Tegra SoCs. The GPCDMA is a special purpose DMA
used to speed up memory copy operations to/from DRAM and TZSRAM.

This patch introduces a macro 'USE_GPC_DMA' to allow platforms
to override CPU based memory operations.

Change-Id: I3170d409c83b77e785437b1002a8d70188fabbeb
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>

This patch removes the logic to set the bit that enables atomic context
save/restore when we enter System suspend. The bootrom enables this bit
during cold boot and exit from System Suspend, so we can remove this
setting from the driver.

Change-Id: Id4e08d5048155c970f5e31d9c9dd676c07182ade
Signed-off-by: Samuel Payne <spayne@nvidia.com>

Main fixes:

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]

Convert object type to match the type of function parameters
[Rule 10.3]

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

Expressions resulting from the expansion of macro parameters
shall be enclosed in parentheses[Rule 20.7]

Change-Id: Ibdae1d18d299562ca2b96b2318b914601c9926b1
Signed-off-by: Anthony Zhou <anzhou@nvidia.com>

Change-Id: I604b38ffa40e04c6e2aaede28e9f61335bbffdc0
Signed-off-by: Yann Gautier <yann.gautier@st.com>