Add device tree binding documentation for Texas Instruments RPMsg Ethernet channels. This binding describes the shared memory communication interface between host processor and a remote processor for Ethernet packet exchange. The binding defines the required 'memory-region' property that references the dedicated shared memory area used for exchanging Ethernet packets between processors. Signed-off-by: MD Danish Anwar <danishanwar@xxxxxx> --- .../devicetree/bindings/net/ti,rpmsg-eth.yaml | 38 +++++++++++++++++++ 1 file changed, 38 insertions(+) create mode 100644 Documentation/devicetree/bindings/net/ti,rpmsg-eth.yaml diff --git a/Documentation/devicetree/bindings/net/ti,rpmsg-eth.yaml b/Documentation/devicetree/bindings/net/ti,rpmsg-eth.yaml new file mode 100644 index 000000000000..1c86d5c020b0 --- /dev/null +++ b/Documentation/devicetree/bindings/net/ti,rpmsg-eth.yaml @@ -0,0 +1,38 @@ +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/net/ti,rpmsg-eth.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Texas Instruments RPMsg channel nodes for Ethernet communication + +description: | + RPMsg Ethernet subnode represents the communication interface between host + processor and a remote processor. + +maintainers: + - MD Danish Anwar <danishanwar@xxxxxx> + +properties: + memory-region: + $ref: /schemas/types.yaml#/definitions/phandle + description: | + Phandle to the shared memory region used for communication between the + host processor and the remote processor. + This shared memory region is used to exchange Ethernet packets. + +required: + - memory-region + +additionalProperties: false + +examples: + - | + main_r5fss0_core0 { + mboxes = <&mailbox0_cluster2 &mbox_main_r5fss0_core0>; + memory-region = <&main_r5fss0_core0_dma_memory_region>, + <&main_r5fss0_core0_memory_region>; + rpmsg-eth { + memory-region = <&main_r5fss0_core0_memory_region_shm>; + }; + }; -- 2.34.1
