plat-stm32mp1: platform driver for stpmic1

Implement STPMIC1 as PMIC (Power Management Integrated Circuit)
accessed through an I2C bus for stm32mp1 platforms. PMIC
configuration mandate device tree

plat-stm32mp1: platform driver for stpmic1

Implement STPMIC1 as PMIC (Power Management Integrated Circuit)
accessed through an I2C bus for stm32mp1 platforms. PMIC
configuration mandate device tree support as configuration
can be complex and specific per board.

At initialization Core looks for a PMIC I2C node in the FDT. If
found, it checks it can communicate with the PMIC and dump some
regulators for some debug support.

Save PMIC low power transition configuration as these information
will be needed from an unpaged execution context.

stm32mp_get_pmic()/stm32mp_put_pmic() helper functions are needed
to get/put PMIC resources.

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

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plat-stm32mp1: stm32mp_with_pmic() helper

Helper function stm32mp_with_pmic() tells if platform uses
a PMIC or not.

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

plat-stm32mp1: stm32mp_with_pmic() helper

Helper function stm32mp_with_pmic() tells if platform uses
a PMIC or not.

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

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imx: enable BLOB for i.MX SoCs

Unconditionally enable the BLOB driver to provide a HuK on i.MX
platforms.

Signed-off-by: Rouven Czerwinski <r.czerwinski@pengutronix.de>
Acked-by: Clement Faure <cle

imx: enable BLOB for i.MX SoCs

Unconditionally enable the BLOB driver to provide a HuK on i.MX
platforms.

Signed-off-by: Rouven Czerwinski <r.czerwinski@pengutronix.de>
Acked-by: Clement Faure <clement.faure@nxp.com>

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caam: add BLOB module for MKVB retrieval

The BLOB module currently only implements the retrieval of the MKVB to
provide a HUK implementation for i.MX platforms. The
tee_otp_get_hw_unique_key() funct

caam: add BLOB module for MKVB retrieval

The BLOB module currently only implements the retrieval of the MKVB to
provide a HUK implementation for i.MX platforms. The
tee_otp_get_hw_unique_key() function is also implemented in this module
and caches the key, since it can't be generated again at runtime.

Signed-off-by: Rouven Czerwinski <r.czerwinski@pengutronix.de>
Acked-by: Jerome Forissier <jerome@forissier.org>
Acked-by: Clement Faure <clement.faure@nxp.com>

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caam: hal: add function to increment priblob

Add a common hal function to increment the priblob. This can
conditionally be enabled with CFG_CAAM_INC_PRIBLOB to use this as a
workaround on SoCs which

caam: hal: add function to increment priblob

Add a common hal function to increment the priblob. This can
conditionally be enabled with CFG_CAAM_INC_PRIBLOB to use this as a
workaround on SoCs which can't distinguish secure and normal world in
the CAAM, i.e. i.MX6Q.

Signed-off-by: Rouven Czerwinski <r.czerwinski@pengutronix.de>
Acked-by: Etienne Carriere <etienne.carriere@linaro.org>
Acked-by: Clement Faure <clement.faure@nxp.com>

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caam: move to early init calls

Initialize the CAAM early to enable the retrieval of the MKVB.

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

caam: move to early init calls

Initialize the CAAM early to enable the retrieval of the MKVB.

Signed-off-by: Rouven Czerwinski <r.czerwinski@pengutronix.de>
Acked-by: Jerome Forissier <jerome@forissier.org>
Acked-by: Etienne Carriere <etienne.carriere@linaro.org>
Acked-by: Clement Faure <clement.faure@nxp.com>

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core: add early initcalls

The early initcalls can be used to initialize hardware which should run
before services are initialized. This can include cryptographic or
random number generation hardware

core: add early initcalls

The early initcalls can be used to initialize hardware which should run
before services are initialized. This can include cryptographic or
random number generation hardware to generate randomness or to perform
cryptographic operations for hardware unique key generation.

Signed-off-by: Rouven Czerwinski <r.czerwinski@pengutronix.de>
Acked-by: Jerome Forissier <jerome@forissier.org>
Reviewed-by: Etienne Carriere <etienne.carriere@linaro.org>
Acked-by: Clement Faure <clement.faure@nxp.com>

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core: rename KEEP_INIT() and KEEP_PAGER()

The KEEP_INIT() and KEEP_PAGER() macros are quite often used in C files
immediately after the definition of a function or a structure without a
blank line i

core: rename KEEP_INIT() and KEEP_PAGER()

The KEEP_INIT() and KEEP_PAGER() macros are quite often used in C files
immediately after the definition of a function or a structure without a
blank line in between. This style mimics what the Linux kernel does for
a similar use cases: EXPORT_SYMBOL().

Unfortunately, the checkpatch.pl tool expects a blank line after
structure and function definitions, except for a few special cases such
as EXPORT_SYMBOL(). As a result we often get unwanted warnings when we
use KEEP_INIT() and KEEP_PAGER(). Among the exceptions are all words
starting with DECLARE_ or DEFINE_, so by renaming our macros we could
avoid the checkpatch warnings.

This commit renames KEEP_INIT() and KEEP_PAGER() to DECLARE_KEEP_INIT()
and DECLARE_KEEP_PAGER(), respectively. The assembler macros are also
renamed for consistency. No functional change is expected.

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

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core: keep.h: add parentheses around sym argument in KEEP_* macros

It is good practice to use parentheses when using macro arguments to
avoid precedence issues. Do it for KEEP_PAGER() and KEEP_INIT(

core: keep.h: add parentheses around sym argument in KEEP_* macros

It is good practice to use parentheses when using macro arguments to
avoid precedence issues. Do it for KEEP_PAGER() and KEEP_INIT().

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

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plat-stm32mp1: clock: enable some secure clocks at initialization

With this change some system clocks are enabled by Core at
boot time and have a reference counter synchronized with
the clock hardwa

plat-stm32mp1: clock: enable some secure clocks at initialization

With this change some system clocks are enabled by Core at
boot time and have a reference counter synchronized with
the clock hardware state. RTCAPB must be enabled for secondary
cores to boot, if any.

This change also ensures these secure clocks are derived from
secure clocks.

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

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drivers: caam: implement NXP CAAM Driver - HMAC

Add the NXP CAAM driver:
- HMAC

Signed-off-by: Cedric Neveux <cedric.neveux@nxp.com>
Signed-off-by: Clement Faure <clement.faure@nxp.com>
Acked-by:

drivers: caam: implement NXP CAAM Driver - HMAC

Add the NXP CAAM driver:
- HMAC

Signed-off-by: Cedric Neveux <cedric.neveux@nxp.com>
Signed-off-by: Clement Faure <clement.faure@nxp.com>
Acked-by: Jens Wiklander <jens.wiklander@linaro.org>
Acked-by: Etienne Carriere <etienne.carriere@linaro.org>

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drivers: crypto: generic resources for crypto MAC driver - MAC

Add a generic cryptographic driver MAC interface connecting
TEE Crypto generic APIs to HW driver interface

Signed-off-by: Cedric Neveu

drivers: crypto: generic resources for crypto MAC driver - MAC

Add a generic cryptographic driver MAC interface connecting
TEE Crypto generic APIs to HW driver interface

Signed-off-by: Cedric Neveux <cedric.neveux@nxp.com>
Signed-off-by: Clement Faure <clement.faure@nxp.com>
Acked-by: Jens Wiklander <jens.wiklander@linaro.org>
Acked-by: Etienne Carriere <etienne.carriere@linaro.org>

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plat-stm32mp1: clock: fix MPUDIV support

Fix implementation that divides clock with a value that in fact is
a bit shift value.

Fix implementation for getting MPU clock: when PMUDIV is zero,
MPU clo

plat-stm32mp1: clock: fix MPUDIV support

Fix implementation that divides clock with a value that in fact is
a bit shift value.

Fix implementation for getting MPU clock: when PMUDIV is zero,
MPU clock is disabled.

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

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core: sm: remove #ifdef around CFG_SM_PLATFORM_HANDLER

Use IS_ENABLED() and weak attribute to remove conditional statement
at pre-compilation time. Keep IS_ENABLED(CFG_SM_PLATFORM_HANDLER)
in the de

core: sm: remove #ifdef around CFG_SM_PLATFORM_HANDLER

Use IS_ENABLED() and weak attribute to remove conditional statement
at pre-compilation time. Keep IS_ENABLED(CFG_SM_PLATFORM_HANDLER)
in the decision to ensure weak function is not even called when
CFG_SM_PLATFORM_HANDLER is disabled, for fast path consideration of
secure monitor traversal.

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

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core: sm: support SMCCC v1.1 specification

SMCCC v1.1 specification: support defined function IDs with weak
handlers platform can override, as other PSCI function handler.
We could state we support

core: sm: support SMCCC v1.1 specification

SMCCC v1.1 specification: support defined function IDs with weak
handlers platform can override, as other PSCI function handler.
We could state we support v1.2 but Linux kernel v5.7-rc1 expects
strict v1.1 support.

unsigned long arm_arch_version(void);
returns SMCCC_V_1_1

unsigned long arm_arch_feature(unsigned long a1);
default supports version only

unsigned long arm_arch_soc_id(void);
unsigned long arm_arch_workaround_1(void);
unsigned long arm_arch_workaround_2(void);
default return ARM_SMCCC_RET_NOT_SUPPORTED

This helper is needed by Linux kernel (U-Boot) drivers that rely on
arm_smccc_v1_1() supports.

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

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stpmic1: fix missing parentheses in boot-on config

Fix error reported by GCC [1]:

core/drivers/stpmic1.c: In function ‘stpmic1_bo_voltage_unpg’:
core/drivers/stpmic1.c:720:24: error: suggest parent

stpmic1: fix missing parentheses in boot-on config

Fix error reported by GCC [1]:

core/drivers/stpmic1.c: In function ‘stpmic1_bo_voltage_unpg’:
core/drivers/stpmic1.c:720:24: error: suggest parentheses around comparison in operand of ‘&’ [-Werror=parentheses]
if (value & cfg->mask >= cfg->min_value)
~~~~~~~~~~^~~~~~~~~~~~~~~~~

[1] arm-buildroot-linux-uclibcgnueabihf-gcc.br_real (Buildroot
2019.11-git-01409-gab8f872d0e-dirty) 8.3.0

Signed-off-by: Etienne Carriere <etienne.carriere@linaro.org>
Reviewed-by: Jerome Forissier <jerome@forissier.org>
[jf: wrap compiler description line]
Signed-off-by: Jerome Forissier <jerome@forissier.org>

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core: scmi-msg: reset: fix return value on domain IDs not found

Fix reset cycle message in SCMI reset domain to return NOT_FOUND on
invalid domain ID instead of INVALID_PARAMETERS.

Signed-off-by: E

core: scmi-msg: reset: fix return value on domain IDs not found

Fix reset cycle message in SCMI reset domain to return NOT_FOUND on
invalid domain ID instead of INVALID_PARAMETERS.

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

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core: scmi-msg: minor cleanup

Remove useless local headers file inclusion as "common.h" is included.
Remove a useless inclusion of speculation_barrier.h.
Use BIT() in clock.h.
Refine inline descript

core: scmi-msg: minor cleanup

Remove useless local headers file inclusion as "common.h" is included.
Remove a useless inclusion of speculation_barrier.h.
Use BIT() in clock.h.
Refine inline description of scmi_msg_channel::agent_name in scmi-msg.h.
Fix typo in scmi_smt_fastcall_smc_entry() description inline comment.

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

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stpmic1: assert regulator support at API function entries

Assert the regulator as a register offset defined (non zero) for the
target support.

Low power modes mandate a non-zero low_power_reg offse

stpmic1: assert regulator support at API function entries

Assert the regulator as a register offset defined (non zero) for the
target support.

Low power modes mandate a non-zero low_power_reg offset value in
regulator description. Offset is stored in lp_reg for unpaged
accesses to regulator.

Pull down support mandates a non-zero pull_down_reg offset value
in regulator description. Offset in stored in pd_reg for unpaged
accessed to regulator.

Mask reset support mandates a non-zero mask_reset_reg offset value
in regulator description. Offset in stored in mrst_reg for unpaged
accessed to regulator.

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

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stpmic1: fix boot-on minimal voltage

Change stpmic1_bo_voltage_cfg() to highlight voltage argument is
a minimal desired boot-on voltage requirement, not an absolute
voltage requested at boot-on, as

stpmic1: fix boot-on minimal voltage

Change stpmic1_bo_voltage_cfg() to highlight voltage argument is
a minimal desired boot-on voltage requirement, not an absolute
voltage requested at boot-on, as per DT binding property .

stpmic1_bo_voltage_unpg() that applies boot-on voltage is updated
to not lower current voltage if above min voltage constraint.

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

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stpmic1: fix regulator identification for low power configuration

Fix name identification sequence in stpmic1_lp_voltage_cfg()
and stpmic1_lp_set_voltage(). Identify names starting with "buck"
using

stpmic1: fix regulator identification for low power configuration

Fix name identification sequence in stpmic1_lp_voltage_cfg()
and stpmic1_lp_set_voltage(). Identify names starting with "buck"
using strncmp(name, "buck", 4), not strcmp(name, "buck") that
tests also string null termination. Fix also tests on regulator
names starting with "ldo".

This change factorize all identification with helper functions
regu_is_buck() and regu_is_ldo_but_ldo4();

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

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stpmic1: relax PMIC control API functions

Return an error if requested to save Low Power regulator data
if there is no Low Power control defined. This changes
stpmic1_lp_cfg(), stpmic1_lp_reg_on_off

stpmic1: relax PMIC control API functions

Return an error if requested to save Low Power regulator data
if there is no Low Power control defined. This changes
stpmic1_lp_cfg(), stpmic1_lp_reg_on_off() and stpmic1_lp_copy_reg()
to return with a error if regulator does not support Low Power config.

Add helper function to stpmic1_regu_has_lp_cfg() to return if a
regulator defines Low Power configuration.

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

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stpmic1: add stpmic1_bo_enable_cfg() to save boot-on config

Add a helper stpmic1_bo_enable_cfg() to save the minimal regulator
data needed to operate at least the boot-on constraint: control on
enab

stpmic1: add stpmic1_bo_enable_cfg() to save boot-on config

Add a helper stpmic1_bo_enable_cfg() to save the minimal regulator
data needed to operate at least the boot-on constraint: control on
enable/disable support: control register offset and bit position.

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

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stpmic1: describe 5V fixed regulators

Describe regulators boost, pwr_sw1 and pwr_sw2 that are gated 5V fixed
regulators.

These regulators have not reset mask support hence change
stpmic1_regulator_

stpmic1: describe 5V fixed regulators

Describe regulators boost, pwr_sw1 and pwr_sw2 that are gated 5V fixed
regulators.

These regulators have not reset mask support hence change
stpmic1_regulator_mask_reset_set() to fail accordingly.

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

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stpmic1: refine resources helper macros

Define bit fields in position xxx_POS rather than in bit mask.
Use BIT() and GENMASK_32() rather than numerical values.

Signed-off-by: Etienne Carriere <etie

stpmic1: refine resources helper macros

Define bit fields in position xxx_POS rather than in bit mask.
Use BIT() and GENMASK_32() rather than numerical values.

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

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