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Normally, BL33 needs to contain a boot loader like U-Boot or UEFI that
eventually gives control to the OS. However, in some cases, this boot
sequence may be too slow. For example, when doing tests in a
cycle-accurate emulator, the user may only be interested in the
interaction between the Trusted Firmware and the OS, not in the boot
process itself.

The new option ARM_LINUX_KERNEL_AS_BL33 allows BL33 to contain the Linux
kernel image by changing the value of registers x0-x3 to the values
expected by the kernel. This option requires the device tree blob (DTB)
to be present in memory. Its address must be specified in the newly
introduced ARM_PRELOADED_DTB_BASE build option. For now, it only supports
AArch64 kernels.

This option is only available when RESET_TO_BL31=1. For this reason
the BL33 binary must be preloaded in memory and PRELOADED_BL33_BASE must
be used.

For example, if the kernel is loaded at 0x80080000 and the DTB is loaded
at address 0x82000000, the firmware could be built like this:

    CROSS_COMPILE=aarch64-linux-gnu-  \
    make PLAT=fvp DEBUG=1             \
    RESET_TO_BL31=1                   \
    ARM_LINUX_KERNEL_AS_BL33=1        \
    PRELOADED_BL33_BASE=0x80080000    \
    ARM_PRELOADED_DTB_BASE=0x82000000 \
    all fip

Change-Id: If9dc847c65ae2d0c27b51f0fd44fc06b28497db9
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>

Previously mem_protect used to be only supported from BL2. This is not
helpful in the case when ARM TF-A BL2 is not used. This patch demonstrates
mem_protect from el3_runtime firmware on ARM Platforms specifically
when RESET_TO_BL31 or RESET_TO_SP_MIN flag is set as BL2 may be absent
in these cases. The Non secure DRAM is dynamically mapped into EL3 mmap
tables temporarily and then the protected regions are then cleared. This
avoids the need to map the non secure DRAM permanently to BL31/sp_min.

The stack size is also increased, because DYNAMIC_XLAT_TABLES require
a bigger stack.

Change-Id: Ia44c594192ed5c5adc596c0cff2c7cc18c001fde
Signed-off-by: Roberto Vargas <roberto.vargas@arm.com>

SGI-575 platform is based on Cortex-A75 processor which has its MT bit
in the MPIDR register set to '1'. So the Arm platform layer code has
to be made aware of this.
Signed-off-by: Sudipto Paul <sudipto.paul@arm.com>

Currently the SCMI driver supports MHUv1, but Arm platforms may have
varied versions of MHU driver, with MHUv2 controllers being in the
latest Arm platforms.

This patch updates the SCMI driver to support MHUv2, specifically that
the sender must send the wake-up to the receiver before initiating any
data transfer.

Also, the existing mhu driver files, css_mhu.c and css_mhu.h, have been
moved from the scpi directory to a new directory, css/drivers/mhu.

Change-Id: I9b46b492a3e1d9e26db12d83a9773958a8c8402f
Signed-off-by: Samarth Parikh <samarth.parikh@arm.com>

Rule 8.4: A compatible declaration shall be visible when
          an object or function with external linkage is defined

Fixed for:
	make DEBUG=1 PLAT=fvp SPD=tspd TRUSTED_BOARD_BOOT=1 \
	     GENERATE_COT=1 ARM_ROTPK_LOCATION=devel_rsa \
	     ROT_KEY=arm_rotprivk_rsa.pem MBEDTLS_DIR=mbedtls all

Change-Id: Ie4cd6011b3e4fdcdd94ccb97a7e941f3b5b7aeb8
Signed-off-by: Roberto Vargas <roberto.vargas@arm.com>

Rule 8.4: A compatible declaration shall be visible when
          an object or function with external linkage is defined

Fixed for:
	make DEBUG=1 PLAT=fvp SPD=tspd all

Change-Id: I0a16cf68fef29cf00ec0a52e47786f61d02ca4ae
Signed-off-by: Roberto Vargas <roberto.vargas@arm.com>

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

Fixed for:
	make DEBUG=1 PLAT=juno LOG_LEVEL=50 all

Change-Id: I0e4a03a0d2170cb1c632e079112a972091994a39
Signed-off-by: Roberto Vargas <roberto.vargas@arm.com>

Rule 8.4: A compatible declaration shall be visible when
          an object or function with external linkage is defined

Fixed for:
	make DEBUG=1 PLAT=fvp LOG_LEVEL=50 all

Change-Id: I32b223251b8bf5924149d89431a65d3405a73d3e
Signed-off-by: Roberto Vargas <roberto.vargas@arm.com>

Add TZMP1 support on Juno and increase the BL2 size accordingly due to the
extra data structures to describe the TZC regions and the additional code.
Signed-off-by: Summer Qin <summer.qin@arm.com>

This patch allows the ARM Platforms to specify the TZC regions to be
specified to the ARM TZC helpers in arm_tzc400.c and arm_tzc_dmc500.c.
If the regions are not specified then the default TZC region will be
configured by these helpers.

This override mechanism allows specifying special regions for TZMP1
usecase.
Signed-off-by: Summer Qin <summer.qin@arm.com>

Building TBBR(SPD=opteed) and non-TBBR TF-A images is breaking for
Juno for different configurations listed below:

* Overflow error of 4096 bytes for rsa algorithm.
* Overflow error of 8192 bytes for ecdsa algorithm.
* Overflow error of 4096 bytes for rsa+ecdsa algorithm.
* Overflow error of 4096 bytes for non-TBBR case.

So this patch increments macro PLAT_ARM_MAX_BL2_SIZE for all the above
cases accordingly.

Change-Id: I75ec6c0a718181d34553fe55437f0496f467683f
Signed-off-by: Amit Daniel Kachhap <amit.kachhap@arm.com>

The current AArch32 version of plat_arm_calc_core_pos uses an incorrect
algorithm to calculate the linear position of a core / PE from its
MPIDR.

This patch corrects the algorithm to:

(ClusterId * FVP_MAX_CPUS_PER_CLUSTER) * FVP_MAX_PE_PER_CPU
+ (CPUId * FVP_MAX_PE_PER_CPU)
+ ThreadId

which supports cores where there are more than 1 PE per CPU.

NOTE: the AArch64 version was fixed in 39b21d19



Change-Id: I72aea89d8f72f8b1fef54e2177a0fa6fef0f5513
Signed-off-by: David Cunado <david.cunado@arm.com>

Add support for System Guidance for Infrastructure platform SGI575.

Change-Id: I0125c2ed4469fbc8367dafcc8adce770b6b3147d
Signed-off-by: Nariman Poushin <nariman.poushin@linaro.org>

Ensure (where possible) that switch statements in plat comply with MISRA
rules 16.1 - 16.7.

Change-Id: Ie4a7d2fd10f6141c0cfb89317ea28a755391622f
Signed-off-by: Jonathan Wright <jonathan.wright@arm.com>

When the source code says 'SMCC' it is talking about the SMC Calling
Convention. The correct acronym is SMCCC. This affects a few definitions
and file names.

Some files have been renamed (smcc.h, smcc_helpers.h and smcc_macros.S)
but the old files have been kept for compatibility, they include the
new ones with an ERROR_DEPRECATED guard.

Change-Id: I78f94052a502436fdd97ca32c0fe86bd58173f2f
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>

x3 will be assigned by the folloing instructions.
So the first instruction is not needed any more.

old method:
  (ClusterId * FVP_MAX_CPUS_PER_CLUSTER)
+ (CPUId * FVP_MAX_PE_PER_CPU)
+ ThreadId

it should be
  (ClusterId * FVP_MAX_CPUS_PER_CLUSTER) * FVP_MAX_PE_PER_CPU
+ (CPUId * FVP_MAX_PE_PER_CPU)
+ ThreadId

which can be simplified as:
(ClusterId * FVP_MAX_CPUS_PER_CLUSTER + CPUId) * FVP_MAX_PE_PER_CPU + ThreadId
Signed-off-by: Wang Feng <feng_feng.wang@spreadtrum.com>

The FVP platform port for SP_MIN (BL32) didn't map the flash memory
in BL32 for stroring the mem_protect enable state information leading
to synchronous exception. The patch fixes it by adding the region to
the BL32 mmap tables.

Change-Id: I37eec83c3e1ea43d1b5504d3683eebc32a57eadf
Signed-off-by: Joel Hutton <Joel.Hutton@Arm.com>

Previously, Juno used to depend on the SSC_GPRETN register to inform
about the reset syndrome. This method was removed when SCP migrated
to the SDS framework. But even the SDS framework doesn't report the
reset syndrome correctly and hence Juno failed to enter Firmware
update mode if BL2 authentication failed.

In addition to that, the error code populated in V2M_SYS_NVFLAGS register
does not seem to be retained any more on Juno across resets. This could
be down to the motherboard firmware not doing the necessary to preserve
the value.

Hence this patch modifies the Juno platform to use the same mechanism to
trigger firmware update as FVP which is to corrupt the FIP TOC on
authentication failure. The implementation in `fvp_err.c` is made common
for ARM platforms and is moved to the new `arm_err.c` file in
plat/arm/common folder. The BL1 and BL2 mmap table entries for Juno
are modified to allow write to the Flash memory address.

Change-Id: Ica7d49a3e8a46a90efd4cf340f19fda3b549e945
Signed-off-by: Soby Mathew <soby.mathew@arm.com>

This issue was detected when testing FWU on Juno. The Timer
`timer_ops` was not being initialized before being used by
the SDS driver on Juno. This patch adds the call to
`generic_delay_timer_init()` during bl2u_early_platform_setup().
This is done generically for all ARM platforms because the
cost involved is minimal.

Change-Id: I349cf0bd1db68406eb2298b65f9c729f792cabdc
Signed-off-by: Soby Mathew <soby.mathew@arm.com>

This patch removes default platform implementations of sp_min
platform APIs from plat/common/aarch32/plat_common.c. The APIs
are now implemented in `plat_sp_min_common.c` file within the
same folder.

The ARM platform layer had a weak definition of sp_min_platform_setup2()
which conflicted with the weak definition in the common file. Hence this
patch fixes that by introducing a `plat_arm_` version of the API thus
allowing individual boards within ARM platforms to override it if they
wish to.

Fixes ARM-software/tf-issues#559

Change-Id: I11a74ecae8191878ccc7ea03f12bdd5ae88faba5
Signed-off-by: Soby Mathew <soby.mathew@arm.com>

This was correct according to the model specifications , but it seems
that FVP doesn't implement it. It is safer to use the size exposed by
the DTB which is currently used by Linux.

Change-Id: I9aabe3284a50ec2a36ed94966eb7e4ddf37cec3b
Signed-off-by: Roberto Vargas <roberto.vargas@arm.com>

Rule 8.4: A compatible declaration shall be visible when
          an object or function with external linkage is defined

Fixed for:
	make DEBUG=1 PLAT=juno LOG_LEVEL=50 all

Change-Id: Ic8f611da734f356566e8208053296e6c62b54709
Signed-off-by: Roberto Vargas <roberto.vargas@arm.com>

Rule 8.4: A compatible declaration shall be visible when
          an object or function with external linkage is defined

Fixed for:
	make DEBUG=1 PLAT=fvp LOG_LEVEL=50 all

Change-Id: I7c2ad3f5c015411c202605851240d5347e4cc8c7
Signed-off-by: Roberto Vargas <roberto.vargas@arm.com>

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

Fixed for:

	make DEBUG=1 PLAT=fvp LOG_LEVEL=50 all

Change-Id: I48201c9ef022f6bd42ea8644529afce70f9b3f22
Signed-off-by: Roberto Vargas <roberto.vargas@arm.com>

FVPs that model DynamIQ configuration implements all CPUs in a single
cluster. I.e., such models have a single cluster with more than 4 CPUs.
This differs from existing default build configuration for FVP where up
to 4 CPUs are assumed per cluster.

To allow building for DynamIQ configuration, promote the macro
FVP_MAX_CPUS_PER_CLUSTER as a build option to have it set from the build
command line. The value of the build option defaults to 4.

Change-Id: Idc3853bc95f680869b434b011c2dbd733e40c6ce
Signed-off-by: Jeenu Viswambharan <jeenu.viswambharan@arm.com>

The SCP binaries provided in the 17.10 Linaro release (and onwards)
have migrated to the SCMI/SDS protocols. Therefore, the ARM TF should
now use the corresponding drivers by default.

This patch changes the default value of the CSS_USE_SCMI_SDS_DRIVER
build option to 1 for Juno.

Change-Id: Idb7e3c6af582f49e332167a2158703c2d781b437
Signed-off-by: Sandrine Bailleux <sandrine.bailleux@arm.com>

MISRA C-2012 Rule 7.3 violation: lowercase l shall not be used as literal suffixes.

This patch resolves this for the ULL() macro by using ULL suffix instead
of the ull suffix.

Change-Id: Ia8183c399e74677e676956e8653e82375d0e0a01
Signed-off-by: David Cunado <david.cunado@arm.com>

This patch restricts building the dynamic config DTBs to the Unix
build environment as the Device Tree compiler may not be available
on other build environments.

Change-Id: Ie690e80010a174300e966240fd977b37561156e0
Signed-off-by: Soby Mathew <soby.mathew@arm.com>

This patch also fixes the assumption that the counters are disabled on
the resume path.  This is incorrect as the AMU counters are enabled
early in the CPU reset function before `cpuamu_context_restore()`
runs.

Change-Id: I38a94eb166a523f00de18e86860434ffccff2131
Signed-off-by: Dimitris Papastamos <dimitris.papastamos@arm.com>

This patch also fixes `cpuamu_write_cpuamcntenclr_el0()` to use an MSR
instruction instead of an MRS instruction.

Change-Id: Ia6531f64b5ebc60ba432124eaa8d8eaccba40ed0
Signed-off-by: Dimitris Papastamos <dimitris.papastamos@arm.com>

Change-Id: I1d85b76af002b8b672fcaeca94939b7420bc8243
Signed-off-by: Soby Mathew <soby.mathew@arm.com>

This patch adds TB_FW_CONFIG for FVP and allows FVP
to select the appropriate HW_CONFIG to include in the
fip. The HW_CONFIG for FVP is selected via `FVP_HW_CONFIG_DTS`
build option. The TB_FW_CONFIG specifies the load address of
HW_CONFIG to BL2. Since currently the load address is different
between AARCH32 and AARCH64, 2 separate TB_FW_CONFIGs are
maintained for the 2 modes.

Change-Id: Ide8581e752dfa900087f5895c775073c841c0daf
Signed-Off-By: Soby Mathew <soby.mathew@arm.com>

The patch adds the necessary changes to load HW_CONFIG in BL2 for
ARM Platforms :

1. The load address of HW_CONFIG is specified via the `hw_config_addr`
property in TB_FW_CONFIG is loaded by BL1. The `hw_config_max_size`
property defines the maximum size to be expected for the HW_CONFIG.
The `arm_dyn_cfg_helpers.c` and corresponding header implements
utility functions to parse these DT properties defined.
The `arm_dyn_cfg.c` implements wrappers to these helpers to enable
them to be invoked from ARM platform layer.

2. `HW_CONFIG` is added to the `bl2_mem_params_descs[]` array which is
the list of images to be loaded by BL2.

3. The `libfdt` sources are now included when BL2 is built

4. A new helper `populate_next_bl_params_config()` is introduced in
desc_image_load.c to populate the subsequent executable BL images
with the `hw_config` and the corresponding `fw_config` if available.
The `plat_get_next_bl_params()` API for ARM platforms is modified to
invoke this new helper.

5. The implementation of `bl2_early_platform_setup2()` is modified to
consider `arg0` as well in addition to `arg1` passed from BL1.

6. Bump up the BL2 size for Juno to accommodate the inclusion of libfdt.

Change-Id: I80f1554adec41753e0d179a5237364f04fe13a3f
Signed-off-by: Soby Mathew <soby.mathew@arm.com>

This patch modifies the bl1_platform_setup() API to load and authenticate
TB_FW_CONFIG in BL1. The load address of the same is passed on to BL2 in
`arg0` of entrypoint info. The fvp_io_storage.c and arm_io_storage.c also
adds entries corresponding to TB_FW_CONFIG. A helper function
`arm_load_tb_fw_config()` is added to load and authenticate TB_FW_CONFIG
if present.

Change-Id: Ie7bce667b3fad2b1a083bbcbc0a773f9f04254b1
Signed-off-by: Soby Mathew <soby.mathew@arm.com>

This patch migrates the ARM Standard platforms to the new BL
handover interface. The arm_blx_early_platform_setup() functions
are also modified to take in 4 arguments. The `ARM_BL31_PLAT_PARAM_VAL`
value passed to BL31 from BL2 is now in arg3 in preparation of dynamic
configuration arguments.

Change-Id: I33e8e61325a19e7a7127b1ff203c3b86921bf153
Signed-off-by: Soby Mathew <soby.mathew@arm.com>

Change-Id: I93e491fde2a991fc39584c2762f33cbea40541e3
Signed-off-by: Soby Mathew <soby.mathew@arm.com>

Change-Id: Iadb21bb56f2e61d7e6aec9b3b3efd30059521def
Signed-off-by: Soby Mathew <soby.mathew@arm.com>

The console core flush API expects the base address in the first
register, but ARM helpers currently sets the second register with the
base address. This causes an assert failure.

This patch fixes that.

Change-Id: Ic54c423cd60f2756902ab3cfc77b3de2ac45481e
Signed-off-by: Jeenu Viswambharan <jeenu.viswambharan@arm.com>

In the next commit, I need the image name in lowercase because
output files are generally named in lowercase.

Unfortunately, TOOL_ADD_IMG takes the first argument in uppercase
since we generally use uppercase Make variables.

make_helpers/build_macros.mk provides 'uppercase' macro to convert
a string into uppercase, but 'lowercase' does not exist.  We can
implement it if we like, but it would be more straightforward to
change the argument of TOOL_ADD_IMG.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>

Now FIP_ADD_IMG takes care of both fiptool and cert_create
symmetrically.  Rename it so that it matches the behavior.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>