Add bindings to allow MTD/block devices to be created in reserved-memory regions using the "phram" driver. This allows things like partitioning to be specified via the existing devicetree bindings. Signed-off-by: Vincent Whitchurch <vincent.whitchurch@xxxxxxxx> --- .../bindings/reserved-memory/phram.yaml | 45 +++++++++++++++++++ 1 file changed, 45 insertions(+) create mode 100644 Documentation/devicetree/bindings/reserved-memory/phram.yaml diff --git a/Documentation/devicetree/bindings/reserved-memory/phram.yaml b/Documentation/devicetree/bindings/reserved-memory/phram.yaml new file mode 100644 index 000000000000..92e7a80ee87a --- /dev/null +++ b/Documentation/devicetree/bindings/reserved-memory/phram.yaml @@ -0,0 +1,45 @@ +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/reserved-memory/phram.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: MTD/block device in RAM + +description: | + Use the reserved memory region as an MTD or block device. + + If no-map is not set, cached mappings will be used for the memory region. + +maintainers: + - Vincent Whitchurch <vincent.whitchurch@xxxxxxxx> + +allOf: + - $ref: "reserved-memory.yaml" + - $ref: "../mtd/mtd.yaml" + +properties: + compatible: + const: phram + + reg: + description: region of memory that contains the MTD/block device + +required: + - compatible + - reg + +unevaluatedProperties: false + +examples: + - | + reserved-memory { + #address-cells = <1>; + #size-cells = <1>; + + phram: flash@12340000 { + compatible = "phram"; + label = "rootfs"; + reg = <0x12340000 0x00800000>; + }; + }; -- 2.34.1
