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Removal of firewall_dt_probe_bus() and stm32mp25 firewall bus populate + RNG updates #7021

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Removal of firewall_dt_probe_bus() and stm32mp25 firewall bus populate + RNG updates #7021

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Commits on Sep 30, 2024

  1. drivers: firewall: remove firewall_dt_probe_bus() 

    Remove firewall_dt_probe_bus() from the firewall framework as it seems
unlikely that we can have a consensual implementation of this feature.

Signed-off-by: Gatien Chevallier <gatien.chevallier@foss.st.com>
Reviewed-by: Etienne Carriere <etienne.carriere@foss.st.com>
    @GseoC
    GseoC committed Sep 30, 2024
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  2. dts: stm32: declare RIFSC as an access-controller on stm32mp2 platforms 

    RIFSC is a firewall controller. Add the access-controllers property to
all RIFSC sub-nodes. Also add the "simple-bus" compatible for backward
compatibility and "#access-controllers-cells" to the RIFSC node.

Signed-off-by: Gatien Chevallier <gatien.chevallier@foss.st.com>
Reviewed-by: Etienne Carriere <etienne.carriere@foss.st.com>
    @GseoC
    GseoC committed Sep 30, 2024
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  3. drivers: stm32_rifsc: update RIFSC as a firewall controller 

    Use the new firewall API to populate the firewall bus and register
the RIFSC as a firewall provider.

While there, update device tree RIF macros and sort them in the correct
files. Register bit-field macros should be present in the driver while
device tree macros should be present in device tree bindings files.

Signed-off-by: Gatien Chevallier <gatien.chevallier@foss.st.com>
    @GseoC
    GseoC committed Sep 30, 2024
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  4. drivers: stm32_rifsc: restrain access on non secure peripherals for O… 

    …P-TEE

Implement a driver specific firewall bus probe that will
only probe secure peripherals and implement firewall exceptions for
which no firewall operations will be done when CFG_INSECURE is set.
This allows, for example, to share a console with the non-secure world
for development purposes.

Signed-off-by: Gatien Chevallier <gatien.chevallier@foss.st.com>
Reviewed-by: Etienne Carriere <etienne.carriere@foss.st.com>
    @GseoC
    GseoC committed Sep 30, 2024
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  5. plat-stm32mp2: conf: default enable CFG_DRIVERS_FIREWALL 

    Default enable the CFG_DRIVERS_FIREWALL switch that is used to enable
the support of the firewall framework.

Signed-off-by: Gatien Chevallier <gatien.chevallier@foss.st.com>
Reviewed-by: Etienne Carriere <etienne.carriere@foss.st.com>
    @GseoC
    GseoC committed Sep 30, 2024
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  6. drivers: stm32_rng: update clock and power management 

    Better handle clock and reset resources by implementing
enable_rng_clock()/disable_rng_clock(). Do not implement a PM callback
if OP-TEE runs with a software RNG. Finally, implement shared resource
management only for stm32mp15x platforms as it is not used on other
platforms.

Signed-off-by: Gatien Chevallier <gatien.chevallier@foss.st.com>
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    GseoC committed Sep 30, 2024
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  7. dts: stm32: add RNG node in stm32mp251 SoC device tree file 

    Add the RNG node in the stm32mp251 SoC device tree file and default
enable it.

Signed-off-by: Gatien Chevallier <gatien.chevallier@foss.st.com>
Reviewed-by: Etienne Carriere <etienne.carriere@foss.st.com>
    @GseoC
    GseoC committed Sep 30, 2024
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