drivers: clk: make API function description more consistent

Change inline description comments of clock framework API functions,
macros and structures to be more consistent.

Reviewed-by: Gatien Che

drivers: clk: make API function description more consistent

Change inline description comments of clock framework API functions,
macros and structures to be more consistent.

Reviewed-by: Gatien Chevallier <gatien.chevallier@foss.st.com>
Signed-off-by: Etienne Carriere <etienne.carriere@foss.st.com>

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drivers: clk: pre-enable new parent on clock re-parent

Add new clock flag CLK_SET_PARENT_PRE_ENABLE for when an already
enabled clock is re-parented and the new parent clock must be enabled
before w

drivers: clk: pre-enable new parent on clock re-parent

Add new clock flag CLK_SET_PARENT_PRE_ENABLE for when an already
enabled clock is re-parented and the new parent clock must be enabled
before we switch of parents.

This is needed for some system clocks that cannot be disabled, for
example an interconnect AXI bus clock or a CPU clock.

Reviewed-by: Gatien Chevallier <gatien.chevallier@foss.st.com>
Signed-off-by: Etienne Carriere <etienne.carriere@foss.st.com>
Signed-off-by: Gabriel Fernandez <gabriel.fernandez@foss.st.com>

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drivers: clk: get linear rates description

Implement clk_get_rates_steps() clock API function to get the supported
clock rates description as a triplet min/max/step. This function can be
used in the

drivers: clk: get linear rates description

Implement clk_get_rates_steps() clock API function to get the supported
clock rates description as a triplet min/max/step. This function can be
used in the scope of SCMI communication where a clock can report a
linear rate list without listing all supported clock is an array
which size could be quite big.

Reviewed-by: Gatien Chevallier <gatien.chevallier@foss.st.com>
Signed-off-by: Etienne Carriere <etienne.carriere@foss.st.com>
Signed-off-by: Gabriel Fernandez <gabriel.fernandez@foss.st.com>

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drivers: clk: enable clock on rate change

Add new clock flag CLK_SET_RATE_UNGATE for clocks that must be
enabled in order to change their rate.

Reviewed-by: Gatien Chevallier <gatien.chevallier@fos

drivers: clk: enable clock on rate change

Add new clock flag CLK_SET_RATE_UNGATE for clocks that must be
enabled in order to change their rate.

Reviewed-by: Gatien Chevallier <gatien.chevallier@foss.st.com>
Signed-off-by: Etienne Carriere <etienne.carriere@foss.st.com>
Signed-off-by: Gabriel Fernandez <gabriel.fernandez@foss.st.com>

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drivers: clk: change parent clock rate if needed

Add clock flag CLK_SET_RATE_PARENT for clocks for which rate change
request must be propagated to the parent clock.

Reviewed-by: Gatien Chevallier <

drivers: clk: change parent clock rate if needed

Add clock flag CLK_SET_RATE_PARENT for clocks for which rate change
request must be propagated to the parent clock.

Reviewed-by: Gatien Chevallier <gatien.chevallier@foss.st.com>
Signed-off-by: Etienne Carriere <etienne.carriere@foss.st.com>
Signed-off-by: Gabriel Fernandez <gabriel.fernandez@foss.st.com>

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drivers: clk: Get duty cycle from parent clock

Add CLK_DUTY_CYCLE_PARENT clock flag for clock which duty cycle
information needs to be retrieved for the clock parent.

Reviewed-by: Gatien Chevallier

drivers: clk: Get duty cycle from parent clock

Add CLK_DUTY_CYCLE_PARENT clock flag for clock which duty cycle
information needs to be retrieved for the clock parent.

Reviewed-by: Gatien Chevallier <gatien.chevallier@foss.st.com>
Signed-off-by: Etienne Carriere <etienne.carriere@foss.st.com>
Signed-off-by: Gabriel Fernandez <gabriel.fernandez@foss.st.com>

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drivers: clk: Add clock duty cycle

Implement reading a clock duty cycle with new clock API function
clk_get_duty_cycle() and clock operation handle ::clk_get_duty_cycle.
When a clock does not provid

drivers: clk: Add clock duty cycle

Implement reading a clock duty cycle with new clock API function
clk_get_duty_cycle() and clock operation handle ::clk_get_duty_cycle.
When a clock does not provide the operation, it is assumed that the clock
has a 50% duty cycle.

Clock duty cycle information is used for example for some analog-digital
conversion peripheral. This new API function is also expected to be used
by SCMI clock service introduced in the SCMI specification v3.2 [1]
this allow to expose duty cycle service to SCMI clients.

Link: https://developer.arm.com/documentation/den0056/e/ [1]
Signed-off-by: Etienne Carriere <etienne.carriere@foss.st.com>
Signed-off-by: Gabriel Fernandez <gabriel.fernandez@foss.st.com>
Reviewed-by: Gatien Chevallier <gatien.chevallier@foss.st.com>

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core: pm: add macro for PM_HINT_STATE access

Add helper macros to read and test the power state hints provided by
the platform during power management state transitions.

Reviewed-by: Etienne Carrie

core: pm: add macro for PM_HINT_STATE access

Add helper macros to read and test the power state hints provided by
the platform during power management state transitions.

Reviewed-by: Etienne Carriere <etienne.carriere@foss.st.com>
Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>

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core: virt, ffa: keep guest partition until resources are reclaimed

Move a struct guest_partition to prtn_destroy_list if there are
resources remaining to be reclaimed by the hypervisor. Currently t

core: virt, ffa: keep guest partition until resources are reclaimed

Move a struct guest_partition to prtn_destroy_list if there are
resources remaining to be reclaimed by the hypervisor. Currently this is
needed with FF-A and SPMC at S-EL1.

Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
Acked-by: Etienne Carriere <etienne.carriere@foss.st.com>

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core: ffa: store shm_bits in partition for SPMC at S-EL1

Store the bitmask keeping track of allocated shared memory handles in
the current partition when configured with CFG_NS_VIRTUALIZATION and
CF

core: ffa: store shm_bits in partition for SPMC at S-EL1

Store the bitmask keeping track of allocated shared memory handles in
the current partition when configured with CFG_NS_VIRTUALIZATION and
CFG_CORE_SEL1_SPMC.

Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
Acked-by: Etienne Carriere <etienne.carriere@foss.st.com>

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dt-bindings: add RIFSC to default bindings config for STM32MP25

The RIFSC header is now part of default bindings header file for
STM32MP25.

Signed-off-by: Gatien Chevallier <gatien.chevallier@foss.

dt-bindings: add RIFSC to default bindings config for STM32MP25

The RIFSC header is now part of default bindings header file for
STM32MP25.

Signed-off-by: Gatien Chevallier <gatien.chevallier@foss.st.com>
Reviewed-by: Etienne Carriere <etienne.carriere@foss.st.com>

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dt-bindings: add RIFSC bindings

Add bindings for the RIFSC configuration.

Signed-off-by: Gatien Chevallier <gatien.chevallier@foss.st.com>
Reviewed-by: Etienne Carriere <etienne.carriere@foss.st.co

dt-bindings: add RIFSC bindings

Add bindings for the RIFSC configuration.

Signed-off-by: Gatien Chevallier <gatien.chevallier@foss.st.com>
Reviewed-by: Etienne Carriere <etienne.carriere@foss.st.com>

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drivers: add stm32 RIFSC support

Add the RIFSC new driver support.

RIFSC (RIF Security Controller) is responsible for the isolation
of hardware resources like memory or peripherals. It is composed

drivers: add stm32 RIFSC support

Add the RIFSC new driver support.

RIFSC (RIF Security Controller) is responsible for the isolation
of hardware resources like memory or peripherals. It is composed of:

-RISC registers(slave peripherals) with RISUP(Resource Isolation
Slave Unit for Peripherals) OR RISAL(Resource Isolation Slave Unit
for Address space - Lite) logics.
-RIMC registers(Non RIF-Aware masters counterpart) with RIMU
(Resource Isolation Master Unit) logic. It is possible for a master to
inherit from its slave port(RISUP) configuration.

This driver parses the RIFSC device tree configuration and applies
it to put the firewall in place. Therefore, the device tree is
mandatory.

Signed-off-by: Gatien Chevallier <gatien.chevallier@foss.st.com>
Signed-off-by: Lionel Debieve <lionel.debieve@st.com>
Acked-by: Etienne Carriere <etienne.carriere@foss.st.com>

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dt-bindings: add RIF to default bindings config for stm32mp25

Add a list of default bindings for STM32MP25 platforms.

Signed-off-by: Gatien Chevallier <gatien.chevallier@foss.st.com>
Reviewed-by: E

dt-bindings: add RIF to default bindings config for stm32mp25

Add a list of default bindings for STM32MP25 platforms.

Signed-off-by: Gatien Chevallier <gatien.chevallier@foss.st.com>
Reviewed-by: Etienne Carriere <etienne.carriere@foss.st.com>

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dt-bindings: firewall: add RIF bindings

Add defines for Resource Isolation Framework (RIF) sub-system
configuration.

Signed-off-by: Gatien Chevallier <gatien.chevallier@foss.st.com>
Reviewed-by: Et

dt-bindings: firewall: add RIF bindings

Add defines for Resource Isolation Framework (RIF) sub-system
configuration.

Signed-off-by: Gatien Chevallier <gatien.chevallier@foss.st.com>
Reviewed-by: Etienne Carriere <etienne.carriere@foss.st.com>

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drivers: firewall: add stm32_rif driver for common RIF features

The resource isolation framework (RIF) is a comprehensive set of
hardware blocks designed to enforce and manage the isolation of
STM32

drivers: firewall: add stm32_rif driver for common RIF features

The resource isolation framework (RIF) is a comprehensive set of
hardware blocks designed to enforce and manage the isolation of
STM32MP25xx hardware resources, like memories and peripherals.

The RIF manages security and privilege levels as well as compartment
filtering. Each compartment is identified by a Compartment ID (CID).

Therefore, the access filtering can be, depending on the case:
• restricted to none, one or more than one CID
• secure-only, non-secure only, or both
• privileged-only or privileged/unprivileged
• read-only, write-only, or read/write

Add a firewall driver folder that contains firewall drivers.
This RIF driver contains generic features shared between all drivers
managing RIF configuration.

Signed-off-by: Gatien Chevallier <gatien.chevallier@foss.st.com>
Acked-by: Etienne Carriere <etienne.carriere@foss.st.com>

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core: io: fix IO_READ32_POLL_TIMEOUT() when delay is 0us

Fix detection of timeout condition in IO_READ32_POLL_TIMEOUT() that was
never triggered when delay argument is 0us. Indeed 0 is not a useful

core: io: fix IO_READ32_POLL_TIMEOUT() when delay is 0us

Fix detection of timeout condition in IO_READ32_POLL_TIMEOUT() that was
never triggered when delay argument is 0us. Indeed 0 is not a useful
increment value for a timeout counter.

Fixes: 97ea199a2ae8 ("core: io: IO_READ32_POLL_TIMEOUT()")
Acked-by: Gatien Chevallier <gatien.chevallier@foss.st.com>
Acked-by: Jerome Forissier <jerome.forissier@linaro.org>
Signed-off-by: Etienne Carriere <etienne.carriere@foss.st.com>

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core: add nex_*init-calls

Add nex_*init-calls for drivers and services that resides in the nexus
in case of virtualization. In case of virtualization the init-calls are
based on final calls, while o

core: add nex_*init-calls

Add nex_*init-calls for drivers and services that resides in the nexus
in case of virtualization. In case of virtualization the init-calls are
based on final calls, while otherwise are the same as the non-nex
counterpart.

Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
Acked-by: Etienne Carriere <etienne.carriere@foss.st.com>
Acked-by: Jerome Forissier <jerome.forissier@linaro.org>

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core: add is_nexus() and refactor is_unpaged()

Add the function is_nexus() to tell if an address is an address
available to the nexus when non-secure virtualization is enabled
(CFG_NS_VIRTUALIZATION

core: add is_nexus() and refactor is_unpaged()

Add the function is_nexus() to tell if an address is an address
available to the nexus when non-secure virtualization is enabled
(CFG_NS_VIRTUALIZATION=y). The function is stubbed to return true for
non-null arguments if non-secure virtualization isn't enabled, else
false.

Make the argument for is_unpaged() const void * for consistency with the
is_nexus() function. The stubbed version of is_unpaged() when paging
isn't enabled is updated to perform a NULL check on the argument.

Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
Acked-by: Etienne Carriere <etienne.carriere@foss.st.com>
Acked-by: Jerome Forissier <jerome.forissier@linaro.org>

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core: kernel: fix typo in huk_subkey.h inline comment

Fix a typo in `huk_subkey.h` inline comment where TEE_SUCCES should be
TEE_SUCCESS.

Acked-by: Etienne Carriere <etienne.carriere@foss.st.com>
S

core: kernel: fix typo in huk_subkey.h inline comment

Fix a typo in `huk_subkey.h` inline comment where TEE_SUCCES should be
TEE_SUCCESS.

Acked-by: Etienne Carriere <etienne.carriere@foss.st.com>
Signed-off-by: Niklas Kirschall <niki.nice1203@gmail.com>

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core: crypto: fix crypto_asym_get_ecc_keypair_ops() stub

Correct definition of crypto_asym_get_ecc_keypair_ops() stub inline
function when CFG_CRYPTO_ECC is disabled. The definition used a wrong
fun

core: crypto: fix crypto_asym_get_ecc_keypair_ops() stub

Correct definition of crypto_asym_get_ecc_keypair_ops() stub inline
function when CFG_CRYPTO_ECC is disabled. The definition used a wrong
function label.

Fixes: 5516c6cd78da ("core: ecc: support the crypto driver")
Reviewed-by: Jerome Forissier <jerome.forissier@linaro.org>
Signed-off-by: Etienne Carriere <etienne.carriere@foss.st.com>

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core: serial: add rx_intr_{enable,disable}() callbacks

Add optional callbacks to enable and disable receive interrupts from a
serial device.

Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org

core: serial: add rx_intr_{enable,disable}() callbacks

Add optional callbacks to enable and disable receive interrupts from a
serial device.

Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
Reviewed-by: Jerome Forissier <jerome.forissier@linaro.org>

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core: dt: provide stubbed dt_getprop_as_number()

When compiled with CFG_DT=n link the following error can occur:
aarch64-linux-gnu-ld.bfd: out/arm/core/arch/arm/kernel/boot.o: in function `get_sec_m

core: dt: provide stubbed dt_getprop_as_number()

When compiled with CFG_DT=n link the following error can occur:
aarch64-linux-gnu-ld.bfd: out/arm/core/arch/arm/kernel/boot.o: in function `get_sec_mem_from_manifest':
core/arch/arm/kernel/boot.c:1511: undefined reference to `dt_getprop_as_number'
aarch64-linux-gnu-ld.bfd: core/arch/arm/kernel/boot.c:1519: undefined reference to `dt_getprop_as_number'
aarch64-linux-gnu-ld.bfd: out/arm/core/mm/core_mmu.o: in function `collect_device_mem_ranges':
core/mm/core_mmu.c:982: undefined reference to `dt_getprop_as_number'
aarch64-linux-gnu-ld.bfd: core/mm/core_mmu.c:993: undefined reference to `dt_getprop_as_number'

Fix this by adding a stubbed version of dt_getprop_as_number() when
CFG_DT=n.

Link: https://github.com/OP-TEE/optee_os/issues/6537
Fixes: 4e45454a85d3 ("core: add dt_getprop_as_number()")
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
Reviewed-by: Jerome Forissier <jerome.forissier@linaro.org>

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drivers: atmel_rstc: add the function to control sama7g5's USB reset

In sama7g5, USB POR is controlled by register RSTC_GRSTR.

Signed-off-by: Tony Han <tony.han@microchip.com>
Acked-by: Jerome Fori

drivers: atmel_rstc: add the function to control sama7g5's USB reset

In sama7g5, USB POR is controlled by register RSTC_GRSTR.

Signed-off-by: Tony Han <tony.han@microchip.com>
Acked-by: Jerome Forissier <jerome.forissier@linaro.org>
Acked-by: Etienne Carriere <etienne.carriere@foss.st.com>

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plat-stm32mp1: shared_resource: disable MCKPROT if not needed

Disable RCC MCKPROT if not needed on STM32MP15 platforms to allow
non-secure world to control Cortex-M coprocessor. This change is neede

plat-stm32mp1: shared_resource: disable MCKPROT if not needed

Disable RCC MCKPROT if not needed on STM32MP15 platforms to allow
non-secure world to control Cortex-M coprocessor. This change is needed
when RCC secure hardening is enabled (RCC[TZEN] control bit) as it
also default enable RCC MCKPROT preventing non-secure world from
accessing some coprocessor SoC resources.

This change is needed when using in tree DTS files stm32mp15*-*-scmi.dts
and non-secure world is in charge of loading and managing the
remote processor firmware.

Reviewed-by: Gatien Chevallier <gatien.chevallier@foss.st.com>
Signed-off-by: Etienne Carriere <etienne.carriere@foss.st.com>

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