Merge changes from topic "RDN2_WARM_REBOOT_WITH_SGI" into integration

* changes:
feat(sgi): enable css implementation of warm reset
feat(scmi): send powerdown request to online secondary cpus

Merge changes from topic "RDN2_WARM_REBOOT_WITH_SGI" into integration

* changes:
feat(sgi): enable css implementation of warm reset
feat(scmi): send powerdown request to online secondary cpus
feat(plat/arm/css): add interrupt handler for reboot request
refactor(psci): move psci_do_pwrdown_sequence() out of private header
feat(plat/arm/css): add per-cpu power down support for warm reset
feat(scmi): set warm reboot entry point
fix(gicv3): update the affinity mask to 8 bit

show more ...

feat(scmi): send powerdown request to online secondary cpus

To initiate a reset or reboot, the nonsecure OS invokes the PSCI
SYSTEM_RESET function from any one core. As per the PSCI specification,
i

feat(scmi): send powerdown request to online secondary cpus

To initiate a reset or reboot, the nonsecure OS invokes the PSCI
SYSTEM_RESET function from any one core. As per the PSCI specification,
it is the responsibility of firmware to implement the system view of
the reset or reboot operation. For the platforms supported by CSS,
trigger the reset/reboot operation by sending an SGI to rest all CPUs
which are online. The CPUs respond to this interrupt by initiating its
powerdown sequence.

In addition to these changes, fix coding style issues that are not
directly related to the code being introduced in this patch.

Change-Id: I547253ee28ef7eefa78180d016893671a406bbfa
Signed-off-by: Pranav Madhu <pranav.madhu@arm.com>

show more ...

feat(plat/arm/css): add per-cpu power down support for warm reset

Add a new function to setup a SGI interrupt that will be used to trigger
a request for per-cpu power down when executing the PSCI SY

feat(plat/arm/css): add per-cpu power down support for warm reset

Add a new function to setup a SGI interrupt that will be used to trigger
a request for per-cpu power down when executing the PSCI SYSTEM_RESET
request. This will be used on CSS platform that require all the CPUs to
execute the CPU specific power down sequence to complete a warm reboot
sequence in which only the CPUs are power cycled.

Change-Id: I80da0f6c3cd0c5c442c82239ba1e1f773821a7f5
Signed-off-by: Pranav Madhu <pranav.madhu@arm.com>

show more ...

Merge pull request #1784 from antonio-nino-diaz-arm/an/includes-arm

plat/arm: Cleanup of includes and drivers

plat/arm: sds: Move to drivers/ folder

Change-Id: Ia601d5ad65ab199e747fb60af4979b7db477d249
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>

plat/arm: scp: Move to drivers/ folder

Change-Id: Ida5dae39478654405d0ee31a6cbddb4579e76a7f
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>

plat/arm: scpi: Move to drivers/ folder

Change-Id: Icc59cdaf2b56f6936e9847f1894594c671db2e94
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>

plat/arm: mhu: Move to drivers/ folder

Change-Id: I656753a1825ea7340a3708b950fa6b57455e9056
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>

plat/arm: scmi: Move to drivers/ folder

Change-Id: I8989d2aa0258bf3b50a856c5b81532d578600124
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>

plat/arm: Sanitise includes

Use full include paths like it is done for common includes.

This cleanup was started in commit d40e0e08283a ("Sanitise includes
across codebase"), but it only cleaned co

plat/arm: Sanitise includes

Use full include paths like it is done for common includes.

This cleanup was started in commit d40e0e08283a ("Sanitise includes
across codebase"), but it only cleaned common files and drivers. This
patch does the same to Arm platforms.

Change-Id: If982e6450bbe84dceb56d464e282bcf5d6d9ab9b
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>

show more ...

Merge pull request #1620 from deepan02/deepak-arm/move-reset-to-bl31

plat/arm: allow RESET_TO_BL31 for CSS-based platforms

plat/arm: allow RESET_TO_BL31 for CSS-based platforms

This lets any future CSS platforms to use RESET_TO_BL31 flag.

Change-Id: I32a90fce43cb0c6f4d33589653a0fd6a7ecc9577
Signed-off-by: Deepak Pandey

plat/arm: allow RESET_TO_BL31 for CSS-based platforms

This lets any future CSS platforms to use RESET_TO_BL31 flag.

Change-Id: I32a90fce43cb0c6f4d33589653a0fd6a7ecc9577
Signed-off-by: Deepak Pandey <Deepak.Pandey@arm.com>

show more ...

Merge pull request #1566 from EvanLloyd/non_secure_uart

ARM Platforms:Enable non-secure access to UART1

ARM Platforms:Enable non-secure access to UART1

Adds an undocumented build option that enables non-secure access to
the PL011 UART1.
This allows a custom build where the UART can be used as a serial

ARM Platforms:Enable non-secure access to UART1

Adds an undocumented build option that enables non-secure access to
the PL011 UART1.
This allows a custom build where the UART can be used as a serial debug
port for WinDbg (or other debugger) connection.

This option is not documented in the user guide, as it is provided as a
convenience for Windows debugging, and not intended for general use.
In particular, enabling non-secure access to the UART might allow
a denial of service attack!

Change-Id: I4cd7d59c2cac897cc654ab5e1188ff031114ed3c
Signed-off-by: Alexei Fedorov <Alexei.Fedorov@arm.com>
Signed-off-by: Evan Lloyd <evan.lloyd@arm.com>

show more ...

Merge pull request #1477 from dp-arm/dp/css-ap-core

CSS: Add support for SCMI AP core config protocol

Add support for SCMI AP core configuration protocol v1.0

Change-Id: If07000b6b19011e960336a305a784dd643301b97
Signed-off-by: Dimitris Papastamos <dimitris.papastamos@arm.com>

Merge pull request #1346 from samarthp/sp/support-multiple-mhu-gen

plat/arm: Add MHUv2 support to SCMI driver

plat/arm: Add MHUv2 support to SCMI driver

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

plat/arm: Add MHUv2 support to SCMI driver

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>

show more ...

Merge pull request #1224 from masahir0y/gzip

Support GZIP-compressed images for faster loading and verification

Build: change the first parameter of TOOL_ADD_IMG to lowercase

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

Unfortunately, TOOL_ADD_

Build: change the first parameter of TOOL_ADD_IMG to lowercase

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>

show more ...

Build: rename FIP_ADD_IMG to TOOL_ADD_IMG

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 <yamad

Build: rename FIP_ADD_IMG to TOOL_ADD_IMG

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>

show more ...

Build: merge build macros between FIP_ and FWU_FIP_

The build system supports generating two FIP images, fip and fwu_fip.
Accordingly, we have similar build macros.

FIP_ADD_PAYLOAD <--> FWU_F

Build: merge build macros between FIP_ and FWU_FIP_

The build system supports generating two FIP images, fip and fwu_fip.
Accordingly, we have similar build macros.

FIP_ADD_PAYLOAD <--> FWU_FIP_ADD_PAYLOAD
CERT_ADD_CMD_OPT <--> FWU_CERT_ADD_CMD_OPT
FIP_ADD_IMG <--> FWU_FIP_ADD_IMG

The duplicated code increases the maintenance burden. Also, the build
rule of BL2U looks clumsy - we want to call MAKE_BL to compile it from
source files, but we want to put it in fwu_fip. We can not do it in a
single macro call since the current MAKE_BL does not support fwu_fip.

To refactor those in a clean way is to support one more argument to
specify the FIP prefix. If it is empty, the images are targeted to
fip, whereas if the argument is "FWU_", targeted to fwu_fip.

The build macros prefixed with FWU_ go away.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>

show more ...

Merge pull request #1088 from soby-mathew/sm/sds_scmi

Introduce SDS Driver

CSS: Changes for SDS framework

This patch does the required changes to enable CSS platforms
to build and use the SDS framework. Since SDS is always coupled with
SCMI protocol, the preexisting SCMI b

CSS: Changes for SDS framework

This patch does the required changes to enable CSS platforms
to build and use the SDS framework. Since SDS is always coupled with
SCMI protocol, the preexisting SCMI build flag is now renamed to
`CSS_USE_SCMI_SDS_DRIVER` which will enable both SCMI and SDS on
CSS platforms. Also some of the workarounds applied for SCMI are
now removed with SDS in place.

Change-Id: I94e8b93f05e3fe95e475c5501c25bec052588a9c
Signed-off-by: Soby Mathew <soby.mathew@arm.com>

show more ...

Merge pull request #1032 from soby-mathew/sm/css_scp_reorg

Reorganise CSS SCP bootloader layer