| reserved-memory device tree nodes |
| ================================= |
| |
| OPAL exposes reserved memory through a top-level reserved-memory node, |
| containing subnodes that represent each reserved memory region. |
| |
| This follows the Linux specification for the /reserved-memory node, |
| described in the kernel source tree, in: |
| |
| Documentation/devicetree/bindings/reserved-memory/reserved-memory.txt |
| |
| The top-level /reserved-memory node contains: :: |
| |
| #size-cells = <2> |
| #address-cells = <2> |
| |
| Addresses and sizes are all 64-bits. |
| |
| ``ranges`` |
| the empty ranges node indicates no translation of physical |
| addresses in the subnodes. |
| |
| The sub-nodes under the /reserved-memory node contain: |
| |
| ``reg = <address size>`` |
| the address and size of the reserved memory region. The address |
| and size values are two cells each, as signified by the top-level |
| ``#{address,size}-cells`` |
| |
| ``ibm,prd-label = "string"`` |
| a string token for use by the prd system. Specific ranges may be |
| used by prd - those will be referenced by this label. |
