core: imx: move PSCI SNVS operation to the driver

Create imx_snvs_shutdown() to use during psci_system_off() call.

Signed-off-by: Clement Faure <clement.faure@nxp.com>
Acked-by: Jens Wiklander <jen

core: imx: move PSCI SNVS operation to the driver

Create imx_snvs_shutdown() to use during psci_system_off() call.

Signed-off-by: Clement Faure <clement.faure@nxp.com>
Acked-by: Jens Wiklander <jens.wiklander@linaro.org>

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drivers: imx_snvs: add master key selection

Select the OTPMK as the SNVS master key when the platforms is in closed
state.

Signed-off-by: Clement Faure <clement.faure@nxp.com>
Acked-by: Jerome Fori

drivers: imx_snvs: add master key selection

Select the OTPMK as the SNVS master key when the platforms is in closed
state.

Signed-off-by: Clement Faure <clement.faure@nxp.com>
Acked-by: Jerome Forissier <jerome.forissier@linaro.org>

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core: drivers: merge i.MX SNVS driver files

Move the implementation of plat_rpmb_key_is_ready() from
plat-imx/drivers/imx_snvs.c to drivers/imx_snvs.c

Signed-off-by: Clement Faure <clement.faure@nx

core: drivers: merge i.MX SNVS driver files

Move the implementation of plat_rpmb_key_is_ready() from
plat-imx/drivers/imx_snvs.c to drivers/imx_snvs.c

Signed-off-by: Clement Faure <clement.faure@nxp.com>
Acked-by: Jerome Forissier <jerome.forissier@linaro.org>

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imx: snvs: rework snvs driver

Remove the unused SRTC functionality which is not wired up anywhere.
Instead add a function to read the device configuration and system
security monitor instead.

Signe

imx: snvs: rework snvs driver

Remove the unused SRTC functionality which is not wired up anywhere.
Instead add a function to read the device configuration and system
security monitor instead.

Signed-off-by: Rouven Czerwinski <r.czerwinski@pengutronix.de>
Acked-by: Jens Wiklander <jens.wiklander@linaro.org>
Reviewed-by: Cedric Neveux <cedric.neveux@nxp.com>

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Add SPDX license identifiers

Adds one SPDX-License-Identifier line [1] to each source files that
contains license text.

Generated by [2]:
spdxify.py --add-spdx optee_os/

The scancode tool [3] wa

Add SPDX license identifiers

Adds one SPDX-License-Identifier line [1] to each source files that
contains license text.

Generated by [2]:
spdxify.py --add-spdx optee_os/

The scancode tool [3] was used to double check the license matching
code in the Python script. All the licenses detected by scancode are
either detected by spdxify.py, or have no SPDX identifier, or are false
matches.

Link: [1] https://spdx.org/licenses/
Link: [2] https://github.com/jforissier/misc/blob/f7b56c8/spdxify.py
Link: [3] https://github.com/nexB/scancode-toolkit
Signed-off-by: Jerome Forissier <jerome.forissier@linaro.org>
Acked-by: Joakim Bech <joakim.bech@linaro.org>

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drivers: add snvs srtc support

Introduce i.MX SNVS SRTC support. The SRTC works with 32.768KHz.
The SRTC is in SNVS_LP domain. The SNVS_LP is a data storage
subsystem with enhanced security capabili

drivers: add snvs srtc support

Introduce i.MX SNVS SRTC support. The SRTC works with 32.768KHz.
The SRTC is in SNVS_LP domain. The SNVS_LP is a data storage
subsystem with enhanced security capabilities. Its purpose is to store
and protect system data, regardless of the main system power state.
SNVS_LP is in the always-powered-up domain, which is a separate power
domain with its own power supply. When the chip power supply domain
loses power, SNVS_LP continues to operate normally.

Since OP-TEE does not care about calendar time, there is no need
to update calendar time, we only need to read the counter and
get out the time.

The plat_prng_add_jitter_entropy is reused from tee_time_arm_cntpct.c.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org>

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