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Diffstat (limited to 'Documentation/devicetree/bindings/net/qca,qca7000.yaml')
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diff --git a/Documentation/devicetree/bindings/net/qca,qca7000.yaml b/Documentation/devicetree/bindings/net/qca,qca7000.yaml new file mode 100644 index 000000000000..b503c3aa3616 --- /dev/null +++ b/Documentation/devicetree/bindings/net/qca,qca7000.yaml @@ -0,0 +1,109 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/net/qca,qca7000.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Qualcomm QCA7000 + +maintainers: + - Frank Li <Frank.Li@nxp.com> + +description: | + The QCA7000 is a serial-to-powerline bridge with a host interface which could + be configured either as SPI or UART slave. This configuration is done by + the QCA7000 firmware. + + (a) Ethernet over SPI + + In order to use the QCA7000 as SPI device it must be defined as a child of a + SPI master in the device tree. + + (b) Ethernet over UART + + In order to use the QCA7000 as UART slave it must be defined as a child of a + UART master in the device tree. It is possible to preconfigure the UART + settings of the QCA7000 firmware, but it's not possible to change them during + runtime + +properties: + compatible: + const: qca,qca7000 + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + qca,legacy-mode: + $ref: /schemas/types.yaml#/definitions/flag + description: + Set the SPI data transfer of the QCA7000 to legacy mode. + In this mode the SPI master must toggle the chip select + between each data word. In burst mode these gaps aren't + necessary, which is faster. This setting depends on how + the QCA7000 is setup via GPIO pin strapping. If the + property is missing the driver defaults to burst mode. + +allOf: + - $ref: ethernet-controller.yaml# + + - if: + required: + - reg + + then: + properties: + spi-cpha: true + + spi-cpol: true + + spi-max-frequency: + default: 8000000 + maximum: 16000000 + minimum: 1000000 + + allOf: + - $ref: /schemas/spi/spi-peripheral-props.yaml# + + else: + properties: + current-speed: + default: 115200 + + qca,legacy-mode: false + + allOf: + - $ref: /schemas/serial/serial-peripheral-props.yaml# + +unevaluatedProperties: false + +examples: + - | + #include <dt-bindings/interrupt-controller/irq.h> + + spi { + #address-cells = <1>; + #size-cells = <0>; + + ethernet@0 { + compatible = "qca,qca7000"; + reg = <0x0>; + interrupt-parent = <&gpio3>; + interrupts = <25 IRQ_TYPE_EDGE_RISING>; + spi-cpha; + spi-cpol; + spi-max-frequency = <8000000>; + local-mac-address = [ a0 b0 c0 d0 e0 f0 ]; + }; + }; + + - | + serial { + ethernet { + compatible = "qca,qca7000"; + local-mac-address = [ a0 b0 c0 d0 e0 f0 ]; + current-speed = <38400>; + }; + }; |