drivers/stpmic1: unpaged low power sequence

STPMIC1 is used by the secure world to driver the system low power
sequences. Since these sequences are executed in unpaged context,
the driver gets the c

drivers/stpmic1: unpaged low power sequence

STPMIC1 is used by the secure world to driver the system low power
sequences. Since these sequences are executed in unpaged context,
the driver gets the configuration from the DTB during the initialization
and provides optimized functions to load target configuration at
runtime.

This change makes STPMIC1 driver to call the memory footprint optimized
function stm32_i2c_read_write_membyte() for I2C transfer instead of
generic stm32_i2c_mem_read()/stm32_i2c_mem_write(). This is more
suitable to OP-TEE pager constraints on the platform.

This changes removes now unused STPMIC1_I2C_TIMEOUT_US.

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

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core: introduce STPMIC1 driver

STPMIC1 is a power management chip for the stm32mp1 platform. It is
accessed through an I2C bus. STPMIC1 provides regulators and other
features as interrupt sources an

core: introduce STPMIC1 driver

STPMIC1 is a power management chip for the stm32mp1 platform. It is
accessed through an I2C bus. STPMIC1 provides regulators and other
features as interrupt sources and watchdogs.

STPMIC1 configuration is expected from a secure device tree blob, that
currently is the embedded DTB.

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

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stm32_i2c: save DTB status

This change saves DTB status value found in the I2C node and
introduces i2c_is_secure() to state the bus state.

Signed-off-by: Etienne Carriere <etienne.carriere@st.com>

stm32_i2c: save DTB status

This change saves DTB status value found in the I2C node and
introduces i2c_is_secure() to state the bus state.

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

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stm32_i2c: optimized I2C 1 byte memory transfer

Introduce stm32_i2c_read_write_membyte() to operate a single byte
data transfer in memory mode. This function will be used by the
power management seq

stm32_i2c: optimized I2C 1 byte memory transfer

Introduce stm32_i2c_read_write_membyte() to operate a single byte
data transfer in memory mode. This function will be used by the
power management sequence in order to relax pager resident memory
footprint when I2C need to execute in an unpaged context.

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

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stm32mp1: counting GPIOZ bank pins

Get the GPIOZ bank pin count from the device tree. The shared
resources driver uses this information to validate GPIO pin numbers.

Signed-off-by: Etienne Carriere

stm32mp1: counting GPIOZ bank pins

Get the GPIOZ bank pin count from the device tree. The shared
resources driver uses this information to validate GPIO pin numbers.

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

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stm32_uart: pin control with stm32_gpio

stm32_uart instance get related pins configuration
from device tree content.

Signed-off-by: Etienne Carriere <etienne.carriere@st.com>
Acked-by: Jerome Foris

stm32_uart: pin control with stm32_gpio

stm32_uart instance get related pins configuration
from device tree content.

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

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stm32_i2c: expose standard speed in driver API

Move definition of I2C standard speeds configuration means from driver
source file to its header file. This change allows bus owners to use
appropriate

stm32_i2c: expose standard speed in driver API

Move definition of I2C standard speeds configuration means from driver
source file to its header file. This change allows bus owners to use
appropriate value for bus configuration.

Exposes struct i2c_speed_e and enum i2c_speed_e

This change fixes the driver API as enum i2c_speed_e is expected by
the API.

Fixes: b844655c9519 ("stm32_i2c: driver for STM32 I2C bus")

Signed-off-by: Etienne Carriere <etienne.carriere@linaro.org>
Reviewed-by: Joakim Bech <joakim.bech@linaro.org>

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drivers: bcm_gpio: add IPROC GPIO driver

low level driver for Broadcom IPROC GPIO controller.

Signed-off-by: Sandeep Tripathy <sandeep.tripathy@broadcom.com>
Acked-by: Etienne Carriere <etienne.car

drivers: bcm_gpio: add IPROC GPIO driver

low level driver for Broadcom IPROC GPIO controller.

Signed-off-by: Sandeep Tripathy <sandeep.tripathy@broadcom.com>
Acked-by: Etienne Carriere <etienne.carriere@linaro.org>
Acked-by: Victor Chong <victor.chong@linaro.org>

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tzc380: add region auto configuration function

The tzc_auto_configure() function takes an address, a size, the attribute
and a region as arguments. It calculates the fitting tzc380 region
configurat

tzc380: add region auto configuration function

The tzc_auto_configure() function takes an address, a size, the attribute
and a region as arguments. It calculates the fitting tzc380 region
configuration and applies it to the controller.

Signed-off-by: Rouven Czerwinski <r.czerwinski@pengutronix.de>
Acked-by: Jerome Forissier <jerome.forissier@linaro.org>

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tzc380: add function to retrieve action register

The TZC380 IP has an action configuration which defines the action taken
if a region is accessed with the wrong permissions.
Devices do not have to s

tzc380: add function to retrieve action register

The TZC380 IP has an action configuration which defines the action taken
if a region is accessed with the wrong permissions.
Devices do not have to set the action register explicitly, add a
function to retrieve the default configuration.

Signed-off-by: Rouven Czerwinski <rouven@czerwinskis.de>
Acked-by: Etienne Carriere <etienne.carriere@linaro.org>

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drivers: bcm_sotp: add SOTP driver

low level driver for Broadcom SOTP controller.

Acked-by: Jens Wiklander <jens.wiklander@linaro.org>
Reviewed-by: Etienne Carriere <etienne.carriere@linaro.org>
Si

drivers: bcm_sotp: add SOTP driver

low level driver for Broadcom SOTP controller.

Acked-by: Jens Wiklander <jens.wiklander@linaro.org>
Reviewed-by: Etienne Carriere <etienne.carriere@linaro.org>
Signed-off-by: Rahul Gupta <rahul.gupta@broadcom.com>
Signed-off-by: Sandeep Tripathy <sandeep.tripathy@broadcom.com>

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drivers: bcm_hwrng: add HWRNG driver

low level driver for Broadcom random number generator IP.

Acked-by: Jens Wiklander <jens.wiklander@linaro.org>
Signed-off-by: Bharat Kumar Reddy Gooty <bharat.g

drivers: bcm_hwrng: add HWRNG driver

low level driver for Broadcom random number generator IP.

Acked-by: Jens Wiklander <jens.wiklander@linaro.org>
Signed-off-by: Bharat Kumar Reddy Gooty <bharat.gooty@broadcom.com>
Signed-off-by: Sandeep Tripathy <sandeep.tripathy@broadcom.com>

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stm32_i2c: handle pinctrl

Get pinctrl support from stm32_gpio.h into STM32 I2C driver.
When device tree content defines pins related to an I2C interface,
the I2C driver saves the pins configuration

stm32_i2c: handle pinctrl

Get pinctrl support from stm32_gpio.h into STM32 I2C driver.
When device tree content defines pins related to an I2C interface,
the I2C driver saves the pins configuration instances and set the
registered pins in the expected power mode at runtime.

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

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stm32_rng: driver for STM32 RNG

Drivers is embedded upon CFG_STM32_RNG=y.

The driver main API functions are:
- stm32_rng_read() to get a buffer of random bytes,
- stm32_rng_read_raw() to get a buff

stm32_rng: driver for STM32 RNG

Drivers is embedded upon CFG_STM32_RNG=y.

The driver main API functions are:
- stm32_rng_read() to get a buffer of random bytes,
- stm32_rng_read_raw() to get a buffer of random bytes assuming the
RNG hardware is ready, i.e clock enabled.

The device driver is initialized from DT resource when a secure DTB,
currently the embedded DTB, is found.

STM32 RNG driver assumes the platform supports at most RNG instance
in the secure world.

Signed-off-by: Etienne Carriere <etienne.carriere@st.com>
Signed-off-by: Lionel Debieve <lionel.debieve@st.com>
Signed-off-by: Nicolas Le Bayon <nicolas.le.bayon@st.com>
Signed-off-by: Yann Gautier <yann.gautier@st.com>
Acked-by: Jens Wiklander <jens.wiklander@linaro.org>

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stm32_i2c: driver for STM32 I2C bus

Drivers is embedded upon CFG_STM32_I2C=y.

The driver main API functions are:
stm32_i2c_init() to initialize the device driver,
stm32_i2c_mem_{write|read}() for I

stm32_i2c: driver for STM32 I2C bus

Drivers is embedded upon CFG_STM32_I2C=y.

The driver main API functions are:
stm32_i2c_init() to initialize the device driver,
stm32_i2c_mem_{write|read}() for I2C memory mode transfer,
stm32_i2c_master_{transmit|receive}() for stream transfer.

2 helpers:
stm32_i2c_is_device_ready() checks the hardware I2C link,
stm32_i2c_get_setup_from_fdt() fills the I2C initialization
structure from the content found in the DT.

I2C driver instances do not register themselves to the PM
framework. Bus owner is responsible for calling the
stm32_i2c_{suspend|resume}() APIs when the owner device
executes a PM sequence.

stm32_i2c driver is dual licensed GPL-2.0/BSD-3-Clause.
The conversion algorithm for converting device tree bindings
timing information into STM32 I2C timings configuration
register is shared with other packages (Linux kernel, Arm
Trusted Firmware-A, U-Boot).

Signed-off-by: Etienne Carriere <etienne.carriere@st.com>
Signed-off-by: Nicolas Le Bayon <nicolas.le.bayon@st.com>
Signed-off-by: Pascal Paillet <p.paillet@st.com>
Signed-off-by: Pierre-Yves MORDRET <pierre-yves.mordret@st.com>
Signed-off-by: Yann Gautier <yann.gautier@st.com>
Acked-by: Jerome Forissier <jerome.forissier@linaro.org>
Reviewed-by: Joakim Bech <joakim.bech@linaro.org>

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stm32_bsec: OTP driver for stm32mp platforms

BSEC is a one time programmable (OTP) memory interface for stm32mp
SoCs. OTPs are grouped into 32bit words identified by a incremental ID
starting from 0

stm32_bsec: OTP driver for stm32mp platforms

BSEC is a one time programmable (OTP) memory interface for stm32mp
SoCs. OTPs are grouped into 32bit words identified by a incremental ID
starting from 0. Shadowed OTPs are loaded in a volatile memory yet
used as OTP values by the software.

The platform shall implement stm32mp_get_bsec_static_cfg() to
provide BSEC driver some information as the BSEC memory size and
its lower/upper threshold ID that split non-secure from secure OTPs.

Signed-off-by: Etienne Carriere <etienne.carriere@st.com>
Signed-off-by: Christophe Montaud <christophe.montaud@st.com>
Signed-off-by: Lionel Debieve <lionel.debieve@st.com>
Signed-off-by: Mathieu Belou <mathieu.belou@st.com>
Signed-off-by: Nicolas Le Bayon <nicolas.le.bayon@st.com>
Signed-off-by: Yann Gautier <yann.gautier@st.com>
Acked-by: Jens Wiklander <jens.wiklander@linaro.org>

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stm32_gpio: driver for GPIO and pin control

Driver is embedded upon CFG_STM32_GPIO=y.

STM32 GPIO driver API main functions:
- stm32_gpio_set_output_level() sets target output GPIO level,
- stm32_gp

stm32_gpio: driver for GPIO and pin control

Driver is embedded upon CFG_STM32_GPIO=y.

STM32 GPIO driver API main functions:
- stm32_gpio_set_output_level() sets target output GPIO level,
- stm32_gpio_get_input_level() returns target input GPIO level,
- stm32_pinctrl_load_active_cfg() loads interface pin mux active state,
- stm32_pinctrl_load_standby_cfg() loads interface pin mux standby state,
- stm32_pinctrl_fdt_get_pinctrl() save pin configuration from DT content,
- stm32_gpio_set_secure_cfg() sets secure state for target GPIO/pin mux.

GPIO driver does not register to PM framework. It is the GPIO/pin owner
responsibility to call stm32_pinctrl_load_{active|standby}_cfg() on
peripherals power state transitions.

Signed-off-by: Etienne Carriere <etienne.carriere@st.com>
Signed-off-by: Mathieu Belou <mathieu.belou@st.com>
Signed-off-by: Nicolas Le Bayon <nicolas.le.bayon@st.com>
Signed-off-by: Yann Gautier <yann.gautier@st.com>
Acked-by: Jens Wiklander <jens.wiklander@linaro.org>

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stm32_etzpc: STM32 Extended TrustZone Protection Controller

ETZPC is a hardware instance that control access permissions to
some stm32mp SoC peripheral interfaces and internal memories.

This change

stm32_etzpc: STM32 Extended TrustZone Protection Controller

ETZPC is a hardware instance that control access permissions to
some stm32mp SoC peripheral interfaces and internal memories.

This change introduce the stm32_etzpc driver. It is embedded upon
build directive CFG_STM32_ETZPC=y.

Signed-off-by: Etienne Carriere <etienne.carriere@st.com>
Signed-off-by: Mathieu BELOU <mathieu.belou@st.com>
Signed-off-by: Nicolas Le Bayon <nicolas.le.bayon@st.com>
Signed-off-by: Yann Gautier <yann.gautier@st.com>
Acked-by: Jerome Forissier <jerome.forissier@linaro.org>

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stm32_uart: API to init console bus from a DTB

Introduce stm32_uart_init_from_dt_node() that initializes an UART
device from the given DT node. The function returns the reference
to the created UART

stm32_uart: API to init console bus from a DTB

Introduce stm32_uart_init_from_dt_node() that initializes an UART
device from the given DT node. The function returns the reference
to the created UART instance.

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

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stm32_uart: rename exported structure and add secure flag

Rename structure console_pdata into stm32_uart_pdata as it will
be exported over the platform and should not use such a generic
naming.

Thi

stm32_uart: rename exported structure and add secure flag

Rename structure console_pdata into stm32_uart_pdata as it will
be exported over the platform and should not use such a generic
naming.

This change adds a secure flag to the UART device instance for
used to get the appropriate virtual address when required.
An UART bus could be used by the secure world in secure mode or
in non-secure mode. A bus to a secure element likely mandates
secure hardening of the UART. A debug console over a non-secure
UART link may require the UART resources to be assigned to the
non-secure world.

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

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core: move io_pa_va support out of serial drivers

io_pa_or_va() is generic enough to be useful for non serial driver
matters. Move it to core_mem_prot.h.

Signed-off-by: Etienne Carriere <etienne.ca

core: move io_pa_va support out of serial drivers

io_pa_or_va() is generic enough to be useful for non serial driver
matters. Move it to core_mem_prot.h.

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

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drivers: tzc380: fix tzc_configure_region api

Signed-off-by: Silvano di Ninno <silvano.dininno@nxp.com>
Reviewed-by: Jerome Forissier <jerome.forissier@linaro.org>

core: stm32_uart driver

Used by platform stm32mp1.

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

core: stm32_uart driver

Used by platform stm32mp1.

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

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Remove license notice from STMicroelectronics files

Since a while the source files license info are defined by SPDX
identifiers. We can safely remove the verbose license text from the
files that are

Remove license notice from STMicroelectronics files

Since a while the source files license info are defined by SPDX
identifiers. We can safely remove the verbose license text from the
files that are owned by either only STMicroelectronics or only both
Linaro and STMicroelectronics.

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

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Remove support for Allwinner A80 platform (plat-sunxi)

It has been almost three years since we have heard about plat-sunxi
(no new contributions, no patch ack'ed or tested, no feedback at
release ti

Remove support for Allwinner A80 platform (plat-sunxi)

It has been almost three years since we have heard about plat-sunxi
(no new contributions, no patch ack'ed or tested, no feedback at
release time). Therefore, remove support for this platform.

Signed-off-by: Jerome Forissier <jerome.forissier@linaro.org>
CC: Sun Yangbang <sunny@allwinnertech.com>
Reviewed-by: Joakim Bech <joakim.bech@linaro.org>
Acked-by: Jens Wiklander <jens.wiklander@linaro.org>

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