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For Denver CPUs, this approach enables the mitigation during EL3
initialization, following every PE reset. No mechanism is provided to
disable the mitigation at runtime.

This approach permanently mitigates the EL3 software stack only. Other
software components are responsible to enable it for their exception
levels.

TF-A implements this approach for the Denver CPUs with DENVER_MIDR_PN3
and earlier:

*   By setting bit 11 (Disable speculative store buffering) of
    `ACTLR_EL3`

*   By setting bit 9 (Disable speculative memory disambiguation) of
    `ACTLR_EL3`

TF-A implements this approach for the Denver CPUs with DENVER_MIDR_PN4
and later:

*   By setting bit 18 (Disable speculative store buffering) of
    `ACTLR_EL3`

*   By setting bit 17 (Disable speculative memory disambiguation) of
    `ACTLR_EL3`

Change-Id: If1de96605ce3f7b0aff5fab2c828e5aecb687555
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>

Denver CPUs expect the power state field to be reset to 'C1'
during boot. This patch updates the reset handler to reset the
ACTLR_.PMSTATE field to 'C1' state during CPU boot.

Change-Id: I7cb629627a4dd1a30ec5cbb3a5e90055244fe30c
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>

- add svc configuration according to values burnt
  to the chip efuse

Change-Id: Icf5d7cc41bc09ac2244d0a126106e681afebb064
Signed-off-by: Christine Gharzuzi <chrisg@marvell.com>
Reviewed-by: Kostya Porotchkin <kostap@marvell.com>

This patch enables handling PMU overflow IRQ by GIC SPI's
directly in EL3. Also implement additional SMC routine,
which can disable the solution on demand in runtime.

Since it is possible to configure PMU interrupt trigger type
in the MADT ACPI table, it is enough to set it only once in EL3
during initialization.

Change-Id: Ie76aa62ccc4fd7cabfec9e3d5ed9970ada1c1b2a
Signed-off-by: Marcin Wojtas <mw@semihalf.com>
Reviewed-by: Kostya Porotchkin <kostap@marvell.com>

This patch introduces new helper routines that allow
configuring the individual IRQs to be edge/level-triggered
via GICD_ICFGR registers. This is helpful to modify
the default configuration of the non-secure GIC SPI's, which
are all set during initialization to be level-sensitive.

Change-Id: I23deb4a0381691a686a3cda52405aa1dfd5e56f2
Signed-off-by: Marcin Wojtas <mw@semihalf.com>
Reviewed-by: Kostya Porotchkin <kostap@marvell.com>

Rename a8k_common.h to armada_common.h to keep the same header
name across all other Marvell Armada platforms.
This is especially useful since various Marvell platforms may
use common platform files and share the driver modules.

Change-Id: I7262105201123d54ccddef9aad4097518f1e38ef
Signed-off-by: Konstantin Porotchkin <kostap@marvell.com>

No functional changes.

Change-Id: I850f08718abb69d5d58856b0e3de036266d8c2f4
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>

fixes arm-software/tf-issues#620
Signed-off-by: Jan Dabros <jsd@semihalf.com>

Change-Id: Ifdb0ceec19d267b14d796b5d31f08f7342190484
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>

Change-Id: I2954a99d5b72069bcb7bac9d6926c6209d6ba881
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>

Change-Id: I8fbb4c785e7e07c7241e0c399a9b65161985c9df
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>

Change-Id: I5993b425445ee794e6d2a792c244c0af53640655
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>

Change-Id: I130e35d55c474ecd80f9a825be23620d5bc1a715
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>

Change-Id: I6a2adef87c20f9279446a54b7e69618fba3d2a25
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>

Change-Id: I945029ca26ea2e63f0d92c5f33019b882f23bd72
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>

Change-Id: Ib587f12f36810fc7d4f4b8f575195554299b8ed4
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>

When any of these functions is called the backtrace will be printed to
the console.

Change-Id: Id60842df824b320c485a9323ed6b80600f4ebe35
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>

This function diplays the backtrace, the current EL and security state
to allow a post-processing tool to choose the right binary to interpret
the dump.

The output can be fed to GNU addr2line to resolve function names given
an ELF binary compiled with debug information. The "-i" flag is
recommended to improve display in case of inlined functions. The *.dump
files generated during the build process can also be used.

The function works in AArch64 and AArch32. In AArch32 it only works in
A32 mode (without T32 interworking), which is enforced in the Makefile.

Sample output of a backtrace at EL3:

    BACKTRACE: START: function_name
    0: EL3: 0x798
    1: EL3: 0x538
    2: EL3: 0x550
    3: EL3: 0x55c
    4: EL3: 0x568
    5: EL3: 0x5a8
    6: EL3: 0xf4
    BACKTRACE: END: function_name

In order to enable it the new option ENABLE_BACKTRACE must be set to 1.
This option is set to 1 by default only in AArch64 debug builds. As
usual, it can be overridden by the platform makefile and in the build
command line.

Change-Id: Icaff39b0e5188329728be2f3c72b868b2368e794
Co-authored-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
Signed-off-by: Douglas Raillard <douglas.raillard@arm.com>

Change their names to printf and snprintf. They are much smaller than
the previous versions we had, which makes them better suited for the
Trusted Firmware.

Change-Id: Ia872af91b7b967c47fce012eccecede7873a3daf
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>

The C standard says that printf() has to return the number of characters
it has printed.

Change-Id: I0ef50b1d6766d140724ac0a2fa2c5d023431f984
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>

The codebase was using non-standard headers. It is needed to replace
them by the correct ones so that we can use the new libc headers.

Change-Id: I530f71d9510cb036e69fe79823c8230afe890b9d
Acked-by: Sumit Garg <sumit.garg@linaro.org>
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>

Only leave the parts relevant to the Trusted Firmware.

Change-Id: I0444c16e402f6c1629211d03bf6cb32ca3dbcf59
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>

Change-Id: I4f58bb4660078c9bc76d2826c90b2fa711719a3e
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>

Taken from http://git.simple-cc.org/scc/

 from the following commit:

67508ad14af314cea2229783d3c084f28c41daf0

Permission has been granted from the author to use them under the
license BSD-3-Clause instead of ISC.

Change-Id: I65c0ce3ab60c49d34a57533af12a74bd7bde88e5
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>

Remove code specific to FreeBSD so that they can be used in this
repository.

Change-Id: I5c11eb5b3c05a7fb91aed08371a1f7a0e6122a94
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>

From commit aafd1cf4235d78ce85b76d7da63e9589039344b3:

- sys/sys/endian.h
- sys/arm/include/endian.h
- sys/arm64/include/endian.h
- sys/sys/errno.h
- lib/libc/strchr.c
- lib/libc/strcmp.c
- lib/libc/strncmp.c
- lib/libc/strnlen.c

strcasecmp() hasn't been imported.

Change-Id: I8a0787aec9ba8960a008fb5c66f7a73c84919b93
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>

Change-Id: I76091d52571f1950111c4b1670d5fc3883607715
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>

Remove all files that don't have only Arm copyright. This is the first
step to cleanup the C library in this repository. They will be re-added
in the following patches.

Change-Id: I72c40a1620d1df3228fc397ec695d569a20245fd
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>

These changes address most of the required MISRA rules. In the process,
some from generic code is also fixed.

No functional changes.

Change-Id: I707dbec9b34b802397e99da2f5ae738165d6feba
Signed-off-by: Jeenu Viswambharan <jeenu.viswambharan@arm.com>

These changes address most of the required MISRA rules. In the process,
some from generic code is also fixed.

No functional changes.

Change-Id: I76cacf6e1d73b09510561b5090c2bb66d81bec88
Signed-off-by: Jeenu Viswambharan <jeenu.viswambharan@arm.com>

These changes address most of the required MISRA rules. In the process,
some from generic code are also fixed.

No functional changes.

Change-Id: I19786070af7bc5e1f6d15bdba93e22a4451d8fe9
Signed-off-by: Jeenu Viswambharan <jeenu.viswambharan@arm.com>

These changes address most of the required MISRA rules. In the process,
some from generic code is also fixed.

No functional changes.

Change-Id: I6235a355e006f0b1c7c1c4d811b3964a64d0434f
Signed-off-by: Jeenu Viswambharan <jeenu.viswambharan@arm.com>

Memory Partitioning And Monitoring is an Armv8.4 feature that enables
various memory system components and resources to define partitions.
Software running at various ELs can then assign themselves to the
desired partition to control their performance aspects.

With this patch, when ENABLE_MPAM_FOR_LOWER_ELS is set to 1, EL3 allows
lower ELs to access their own MPAM registers without trapping to EL3.
This patch however doesn't make use of partitioning in EL3; platform
initialisation code should configure and use partitions in EL3 if
required.

Change-Id: I5a55b6771ccaa0c1cffc05543d2116b60cbbcdcd
Co-authored-by: James Morse <james.morse@arm.com>
Signed-off-by: Jeenu Viswambharan <jeenu.viswambharan@arm.com>

Move from bl31_early_platform_setup to bl31_early_platform_setup2
Signed-off-by: Konstantin Porotchkin <kostap@marvell.com>

If the system is in near idle conditions, this erratum could cause a
deadlock or data corruption. This patch applies the workaround that
prevents this.

This DSU erratum affects only the DSUs that contain the ACP interface
and it was fixed in r2p0. The workaround is applied only to the DSUs
that are actually affected.

Link to respective Arm documentation:
http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.epm138168/index.html



Change-Id: I033213b3077685130fc1e3f4f79c4d15d7483ec9
Signed-off-by: John Tsichritzis <john.tsichritzis@arm.com>

The translation library is useful elsewhere. Even though this repository
doesn't exercise the EL2 support of the library, it is better to have it
here as well to make it easier to maintain.

enable_mmu_secure() and enable_mmu_direct() have been deprecated. The
functions are still present, but they are behind ERROR_DEPRECATED and
they call the new functions enable_mmu_svc_mon() and
enable_mmu_direct_svc_mon().

Change-Id: I13ad10cd048d9cc2d55e0fff9a5133671b67dcba
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>

Replace emmc framework by mmc framework.
Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org>

Migrate dw_mmc driver from emmc framework to mmc framework. The
emmc framework will be abandoned.
Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org>

mmc_read_blocks()/mmc_write_blocks() derived from io_block_ops_t
type. It means that lba param should be integer type, not
unsigned integer type.
Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org>

Change-Id: Idb9ba3864d6de3053260724f07172fd32c1523e0
Signed-off-by: Roberto Vargas <roberto.vargas@arm.com>