drivers: stm32_tamp: support STM32MP23x SoC family

Add support for STM32MP23 SoC family.

Signed-off-by: Thomas Bourgoin <thomas.bourgoin@foss.st.com>
Acked-by: Etienne Carriere <etienne.carriere@fo

drivers: stm32_tamp: support STM32MP23x SoC family

Add support for STM32MP23 SoC family.

Signed-off-by: Thomas Bourgoin <thomas.bourgoin@foss.st.com>
Acked-by: Etienne Carriere <etienne.carriere@foss.st.com>

show more ...

drivers: gpio: add configure functions

Align the OP-TEE GPIO driver with GPIO lib (devm_gpiod_get_index with
enum gpiod_flags) and add a way to select the GPIO configuration directly
during request

drivers: gpio: add configure functions

Align the OP-TEE GPIO driver with GPIO lib (devm_gpiod_get_index with
enum gpiod_flags) and add a way to select the GPIO configuration directly
during request with the new function, gpio_dt_cfg_by_index().

This patch remove assumption on GPIO direction (gpio input was assumed in
GPIO driver) or output level when the GPIO is requested by consumer.
with this patch it must be requested explicitly with:
- GPIO_IN: configure the input GPIO
- GPIO_ASIS: direction is managed by caller later with gpio_set_value()
call.
- GPIO_OUT_LOW / GPIO_OUT_HIGH: output GPIO at expected level,
the sequence for GPIO have the correct order to avoid glitch by using
the gpio function at the correct order.

This patch is a preliminary step for the introduction of ops configure.
The API gpio_dt_get_by_index() is keep for backward compatibility but
should be used with gpio_configure() or replaced by gpio_dt_cfg_by_index().

Now gpio_configure() is only used in the 2 drivers, regulator_fixed and
regulator_gpio, because in these drivers the flags gpio->dt_flags are
modified after call of gpio_dt_get_by_index().

For get_voltage_level_gpio(), GPIO_OUT_HIGH is used by default as it is
done in Linux function of_get_gpio_regulator_config().

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

show more ...

drivers: stm32_tamp: implement reset on tamper event

In case the behavior on a tamper event detection is to reset the platform,
call the do_reset() API to force a system reset.

Signed-off-by: Gatie

drivers: stm32_tamp: implement reset on tamper event

In case the behavior on a tamper event detection is to reset the platform,
call the do_reset() API to force a system reset.

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

show more ...

drivers: stm32_tamp: add tamper events detection support

The anti-tamper detection circuit is used to protect sensitive data
from external attacks. The backup registers, as well as other secrets in

drivers: stm32_tamp: add tamper events detection support

The anti-tamper detection circuit is used to protect sensitive data
from external attacks. The backup registers, as well as other secrets in
the device, are protected by this anti-tamper detection circuit with
some tamper pins and internal tampers. The external tamper pins can
be configured for edge detection, or level detection with or without
filtering, or active tamper which increases the security level by auto
checking that the tamper pins are not externally opened or shorted.

Add support for the device-tree configuration of internal and external
tamper events as well as the list hardware mapped pins with their
associated tamper ID for external tampers.

While there, fix the license for this driver.

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

show more ...

drivers: stm32_tamp: configure the backup registers when driver is probing

Update the driver to be able to configure the backup registers when
the driver is probing and remove call to stm32_tamp_set

drivers: stm32_tamp: configure the backup registers when driver is probing

Update the driver to be able to configure the backup registers when
the driver is probing and remove call to stm32_tamp_set_secure_bkpregs()
in plat-stm32mp1 main.c.

Remove old implementation of stm32_bkpregs_conf structure and rename
stm32_bkpregs_conf_new to stm32_bkpregs_conf.

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

show more ...

drivers: stm32_tamp: add stm32mp25 support for RIF configuration

Add support for the RIF configuration of the TAMP peripheral. It covers
the TAMP resources such as monotonic counters but also backup

drivers: stm32_tamp: add stm32mp25 support for RIF configuration

Add support for the RIF configuration of the TAMP peripheral. It covers
the TAMP resources such as monotonic counters but also backup registers
regions and sub-regions.

Create a stm32_tamp_platdata structure to hold platform data.

Add temporary stm32_bkpregs_conf_new structure that will be used by the
new implementation and renamed to stm32_bkpregs_conf when the old one
disappear.

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

show more ...

core: dt_driver: move related content from dt.h to dt_driver.h

Moves so-called dt_driver related declarations and definitions from
dt.h to dt_drivers.h. Incidentally adds an inline description to
en

core: dt_driver: move related content from dt.h to dt_driver.h

Moves so-called dt_driver related declarations and definitions from
dt.h to dt_drivers.h. Incidentally adds an inline description to
enum dt_driver_type. This change clarifies when a source file shall
include dt.h and/or dt_driver.h.

This change updates driver source files to include none, one or both of
these header files where applicable.

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

show more ...

core: replace _fdt_ prefix with fdt_ for device tree API

As per upstream discussion, there is no reason to keep _fdt_ prefix.
Replaces it with fdt_ for all occurrences.

Signed-off-by: Gatien Cheval

core: replace _fdt_ prefix with fdt_ for device tree API

As per upstream discussion, there is no reason to keep _fdt_ prefix.
Replaces it with fdt_ for all occurrences.

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

show more ...

drivers: add stm32 tamper domain driver

Adds stm32_tamp driver for stm32mp1 TAMP sub-system. The implementation
only covers probing of the driver upon embedded DTB content and enabling
some secure c

drivers: add stm32 tamper domain driver

Adds stm32_tamp driver for stm32mp1 TAMP sub-system. The implementation
only covers probing of the driver upon embedded DTB content and enabling
some secure configuration.

Acked-by: Jerome Forissier <jerome.forissier@linaro.org>
Signed-off-by: Etienne Carriere <etienne.carriere@linaro.org>

show more ...