1reserved-memory device tree nodes
2=================================
3
4OPAL exposes reserved memory through a top-level reserved-memory node,
5containing subnodes that represent each reserved memory region.
6
7This follows the Linux specification for the /reserved-memory node,
8described in the kernel source tree, in:
9
10  Documentation/devicetree/bindings/reserved-memory/reserved-memory.txt
11
12The top-level /reserved-memory node contains: ::
13
14  #size-cells = <2>
15  #address-cells = <2>
16
17Addresses and sizes are all 64-bits.
18
19``ranges``
20  the empty ranges node indicates no translation of physical
21  addresses in the subnodes.
22
23The sub-nodes under the /reserved-memory node contain:
24
25``reg = <address size>``
26  the address and size of the reserved memory region. The address
27  and size values are two cells each, as signified by the top-level
28  ``#{address,size}-cells``
29
30``ibm,prd-label = "string"``
31  a string token for use by the prd system. Specific ranges may be
32  used by prd - those will be referenced by this label.
33