drivers: stm32_risaf: upgrade RISAF as a firewall controller

Register RISAF instances as firewall controllers with ops:
-acquire_memory_access() that checks if OP-TEE can access a region
specified i

drivers: stm32_risaf: upgrade RISAF as a firewall controller

Register RISAF instances as firewall controllers with ops:
-acquire_memory_access() that checks if OP-TEE can access a region
specified in a firewall query.
-set_conf() that allows the reconfiguration of a region.

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

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drivers: use fdt_reg_info()

Use fdt_reg_info() instead of fdt_reg_base_address() and fdt_reg_size()
to optimize look up in the DT due to finding parent node.

Signed-off-by: Etienne Carriere <etienn

drivers: use fdt_reg_info()

Use fdt_reg_info() instead of fdt_reg_base_address() and fdt_reg_size()
to optimize look up in the DT due to finding parent node.

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

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drivers: firewall: add stm32_risaf driver

Add the stm32_risaf driver to handle all RISAFs instances on a SoC.
Through RISAF registers, a trusted domain application, or the application
to whom the co

drivers: firewall: add stm32_risaf driver

Add the stm32_risaf driver to handle all RISAFs instances on a SoC.
Through RISAF registers, a trusted domain application, or the application
to whom the configuration has been delegated, assigns memory regions to
one or more security domains (secure, privilege, compartment).
RISAF4 includes the DDR memory cipher engine (DDRMCE) feature.

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

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