On Mon, Mar 07, 2022 at 03:15:47PM +0100, Vincent Whitchurch wrote: > Add bindings to allow MTD/block devices to be created in reserved-memory > regions using the "phram" driver. What does 'ph' mean? Please define somewhere for the binding. > > 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" /schemas/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"; That's an odd example... > + reg = <0x12340000 0x00800000>; > + }; > + }; > -- > 2.34.1 > >
