nordic,owned-partitions

Vendor: Nordic Semiconductor

Description

Nordic Owned Partitions

Memory partition table with permission attributes common to its partitions.
This is a special case of the Nordic Owned Memory binding.

Every compatible node is expected to be a child of a memory node, where the
listed partitions belong.

A single memory node can contain multiple partition tables, each with a
different set of permissions. For each such table, the smallest memory region
spanning the contained partitions will be recorded in the UICR. These regions
are allowed to contain gaps between the partitions, but this is discouraged.

Example:

  mram1x: mram@e000000 {
      compatible = "nordic,mram";
      reg = <0xe000000 0x200000>;
      ...

      rx-partitions {
          compatible = "nordic,owned-partitions";
          nordic,access = <NRF_OWNER_ID_APPLICATION NRF_PERM_RX>;
          #address-cells = <1>;
          #size-cells = <1>;

          slot0_partition: partition@c0000 {
              label = "image-0";
              reg = <0xc0000 0x40000>;
          };
      };

      rw-partitions {
          compatible = "nordic,owned-partitions";
          nordic,access = <NRF_OWNER_ID_APPLICATION NRF_PERM_RW>;
          #address-cells = <1>;
          #size-cells = <1>;

          slot1_partition: partition@100000 {
              label = "image-1";
              reg = <0x100000 0x50000>;
          };
          storage_partition: partition@150000 {
              label = "storage";
              reg = <0x150000 0x6000>;
          };
      };
  };

From this example, two memory regions will be inferred:

  - 0x0E0C0000--0x0E100000, with read & execute permissions, containing the
    partition labeled "image-0".
  - 0x0E100000--0x0E156000, with read & write permissions, containing the
    partitions labeled "image-1" and "storage".

Properties

Top level properties

These property descriptions apply to “nordic,owned-partitions” nodes themselves. This page also describes child node properties in the following sections.

Node specific propertiesDeprecated node specific propertiesBase properties

Properties not inherited from the base binding file.

Name	Type	Details
zephyr,memory-region	string	Signify that this node should result in a dedicated linker script memory region in the final executable. The region address and size is taken from the <reg> property, while the name is the value of this property.
zephyr,memory-attr	int	Attribute or set of attributes (bitmask) for the memory region. See 'include/zephyr/dt-bindings/memory-attr/memory-attr.h' for a comprehensive list with description of possible values.
nordic,access	array	Array of (owner-id, permission-flags) pairs, where: - Owner ID represents the domain that will have access to this memory. Valid values can be found in dts/common/nordic/<soc>.dtsi, where they are defined as NRF_OWNER_ID_* - Permissions are encoded as a 32-bit bitfield, using the flags found in include/zephyr/dt-bindings/reserved-memory/nordic-owned-memory.h, where they are defined as NRF_PERM_* The same file defines all possible permission flag combinations. For example, one can use: <NRF_OWNER_ID_APPLICATION NRF_PERM_RWX> as a shorthand for: <NRF_OWNER_ID_APPLICATION (NRF_PERM_R | NRF_PERM_W | NRF_PERM_X)>

Child node properties

Name	Type	Details
wakeup-source	boolean	Property to identify that a device can be used as wake up source. When this property is provided a specific flag is set into the device that tells the system that the device is capable of wake up the system. Wake up capable devices are disabled (interruptions will not wake up the system) by default but they can be enabled at runtime if necessary.
zephyr,pm-device-runtime-auto	boolean	Automatically configure the device for runtime power management after the init function runs.
zephyr,disabling-power-states	phandles	List of power states that will disable this device power.
status	string	indicates the operational status of a device Legal values: 'ok', 'okay', 'disabled', 'reserved', 'fail', 'fail-sss' See Important properties for more information.
reg	array	register space This property is required. See Important properties for more information.
reg-names	string-array	name of each register space
interrupts	array	interrupts for device See Important properties for more information.
interrupts-extended	compound	extended interrupt specifier for device
interrupt-names	string-array	name of each interrupt
interrupt-parent	phandle	phandle to interrupt controller node
label	string	Human readable string describing the device (used as device_get_binding() argument) See Important properties for more information. This property is deprecated.
clocks	phandle-array	Clock gate information
clock-names	string-array	name of each clock
#address-cells	int	number of address cells in reg property
#size-cells	int	number of size cells in reg property
dmas	phandle-array	DMA channels specifiers
dma-names	string-array	Provided names of DMA channel specifiers
io-channels	phandle-array	IO channels specifiers
io-channel-names	string-array	Provided names of IO channel specifiers
mboxes	phandle-array	mailbox / IPM channels specifiers
mbox-names	string-array	Provided names of mailbox / IPM channel specifiers
power-domains	phandle-array	Power domain specifiers
power-domain-names	string-array	Provided names of power domain specifiers
#power-domain-cells	int	Number of cells in power-domains property
zephyr,deferred-init	boolean	Do not initialize device automatically on boot. Device should be manually initialized using device_init().