[PATCH v4 06/28] dt-bindings: net: Add support for QMC HDLC
From: Christophe Leroy <hidden>
Date: 2023-08-18 17:21:40
Also in:
alsa-devel, linux-arm-kernel, linux-devicetree, linux-gpio, lkml, netdev
Subsystem:
networking drivers, open firmware and flattened device tree bindings, the rest · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds
From: Herve Codina <herve.codina@bootlin.com> The QMC (QUICC mutichannel controller) is a controller present in some PowerQUICC SoC such as MPC885. The QMC HDLC uses the QMC controller to transfer HDLC data. Additionally, a framer can be connected to the QMC HDLC. If present, this framer is the interface between the TDM bus used by the QMC HDLC and the E1/T1 line. The QMC HDLC can use this framer to get information about the E1/T1 line and configure the E1/T1 line. Signed-off-by: Herve Codina <herve.codina@bootlin.com> Signed-off-by: Christophe Leroy <redacted> --- .../devicetree/bindings/net/fsl,qmc-hdlc.yaml | 46 +++++++++++++++++++ 1 file changed, 46 insertions(+) create mode 100644 Documentation/devicetree/bindings/net/fsl,qmc-hdlc.yaml
diff --git a/Documentation/devicetree/bindings/net/fsl,qmc-hdlc.yaml b/Documentation/devicetree/bindings/net/fsl,qmc-hdlc.yaml
new file mode 100644
index 000000000000..13f3572f0feb
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/fsl,qmc-hdlc.yaml@@ -0,0 +1,46 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/net/fsl,qmc-hdlc.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Freescale/NXP QUICC Multichannel Controller (QMC) HDLC + +maintainers: + - Herve Codina <herve.codina@bootlin.com> + +description: | + The QMC HDLC uses a QMC (QUICC Multichannel Controller) channel to transfer + HDLC data. + +properties: + compatible: + const: fsl,qmc-hdlc + + fsl,qmc-chan: + $ref: /schemas/types.yaml#/definitions/phandle-array + items: + - items: + - description: phandle to QMC node + - description: Channel number + description: + Should be a phandle/number pair. The phandle to QMC node and the QMC + channel to use. + + framer: + $ref: /schemas/types.yaml#/definitions/phandle + description: + phandle to the framer node + +required: + - compatible + - fsl,qmc-chan + +additionalProperties: false + +examples: + - | + hdlc { + compatible = "fsl,qmc-hdlc"; + fsl,qmc-chan = <&qmc 16>; + };
--
2.41.0