From: Kenny Root <[email protected]> Add documentation and example for memory-region in pmem.
Signed-off-by: Kenny Root <[email protected]> Signed-off-by: Alistair Delva <[email protected]> Cc: "Oliver O'Halloran" <[email protected]> Cc: Rob Herring <[email protected]> Cc: Dan Williams <[email protected]> Cc: Vishal Verma <[email protected]> Cc: Dave Jiang <[email protected]> Cc: Ira Weiny <[email protected]> Cc: [email protected] Cc: [email protected] Cc: [email protected] --- .../devicetree/bindings/pmem/pmem-region.txt | 30 +++++++++++++++++++ 1 file changed, 30 insertions(+) diff --git a/Documentation/devicetree/bindings/pmem/pmem-region.txt b/Documentation/devicetree/bindings/pmem/pmem-region.txt index 5cfa4f016a00..851ffa71967e 100644 --- a/Documentation/devicetree/bindings/pmem/pmem-region.txt +++ b/Documentation/devicetree/bindings/pmem/pmem-region.txt @@ -29,6 +29,18 @@ Required properties: in a separate device node. Having multiple address ranges in a node implies no special relationship between the two ranges. + This property may be replaced or supplemented with a + memory-region property. Only one of reg or memory-region + properties is required. + + - memory-region: + Reference to the reserved memory node. The reserved memory + node should be defined as per the bindings in + reserved-memory.txt + + This property may be replaced or supplemented with a reg + property. Only one of reg or memory-region is required. + Optional properties: - Any relevant NUMA assocativity properties for the target platform. @@ -63,3 +75,21 @@ Examples: volatile; }; + + /* + * This example uses a reserved-memory entry instead of + * specifying the memory region directly in the node. + */ + + reserved-memory { + pmem_1: pmem@5000 { + no-map; + reg = <0x00005000 0x00001000>; + }; + }; + + pmem@1 { + compatible = "pmem-region"; + memory-region = <&pmem_1>; + }; + -- 2.25.0.265.gbab2e86ba0-goog _______________________________________________ Linux-nvdimm mailing list -- [email protected] To unsubscribe send an email to [email protected]
