Devices like the ATSAM series chips have retained registers
which are used to store memory. The memory is accessed just
like RAM, but since they are registers, their size and
address is used directly.
This commit adds a near complete copy of the generic retained
ram driver and bindings file, adding the reg property to
the bindings file, and updating the init macro in the driver
to use the reg address and size.
Signed-off-by: Bjarki Arge Andreasen <bjarki@arge-andreasen.me>
Move the syscall_handler.h header, used internally only to a dedicated
internal folder that should not be used outside of Zephyr.
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
Changes the Kconfig option to allow disabling mutex support, this
is to allow other Kconfig options to disable the feature.
Signed-off-by: Jamie McCrae <jamie.mccrae@nordicsemi.no>
This adds a few line use zephyr_syscall_header() to include
headers containing syscall function prototypes.
Signed-off-by: Daniel Leung <daniel.leung@intel.com>
Unify the drivers/*/Kconfig menuconfig title strings to the format
"<class> [(acronym)] [bus] drivers".
Including both the full name of the driver class and an acronym makes
menuconfig more user friendly as some of the acronyms are less well-known
than others. It also improves Kconfig search, both via menuconfig and via
the generated Kconfig documentation.
Signed-off-by: Henrik Brix Andersen <hebad@vestas.com>
Adds a driver for the Nordic nRF GPREGRET registers and adds
entries to the SoCs for this peripheral.
Signed-off-by: Jamie McCrae <jamie.mccrae@nordicsemi.no>
Adds a new driver interface for retained memory devices which
can be used to store data and have it retained whilst the device is
powered thorugh different application execution states (though this
data may be lost in low power states).
Signed-off-by: Jamie McCrae <jamie.mccrae@nordicsemi.no>
