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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";
          perm-read;
          perm-execute;
          #address-cells = <1>;
          #size-cells = <1>;

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

      rw-partitions {
          compatible = "nordic,owned-partitions";
          perm-read;
          perm-write;
          #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.

Properties not inherited from the base binding file.

Name

Type

Details

owner-id

int

Owner ID of the domain that will own this memory region. If not defined,
the ownership will default to the domain being compiled.

Note: owner ID is not the same as domain ID; see the product specification
for details.

perm-read

boolean

Owner has read access to the region.

perm-write

boolean

Owner has write access to the region.

perm-execute

boolean

Owner can execute code from the region.

perm-secure

boolean

Owner has secure-only access to the region.

non-secure-callable

boolean

Memory region is used for non-secure-callable code.

Child node properties

Name

Type

Details

reg

array

register space

This property is required.

See Important properties for more information.

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-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

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.

power-domain

phandle

Power domain the device belongs to.

The device will be notified when the power domain it belongs to is either
suspended or resumed.

zephyr,pm-device-runtime-auto

boolean

Automatically configure the device for runtime power management after the
init function runs.