diff options
Diffstat (limited to 'Documentation/devicetree/bindings/net/qcom,ipq4019-mdio.yaml')
| -rw-r--r-- | Documentation/devicetree/bindings/net/qcom,ipq4019-mdio.yaml | 68 |
1 files changed, 62 insertions, 6 deletions
diff --git a/Documentation/devicetree/bindings/net/qcom,ipq4019-mdio.yaml b/Documentation/devicetree/bindings/net/qcom,ipq4019-mdio.yaml index 13555a89975f..0029e197a825 100644 --- a/Documentation/devicetree/bindings/net/qcom,ipq4019-mdio.yaml +++ b/Documentation/devicetree/bindings/net/qcom,ipq4019-mdio.yaml @@ -4,17 +4,23 @@ $id: http://devicetree.org/schemas/net/qcom,ipq4019-mdio.yaml# $schema: http://devicetree.org/meta-schemas/core.yaml# -title: Qualcomm IPQ40xx MDIO Controller Device Tree Bindings +title: Qualcomm IPQ40xx MDIO Controller maintainers: - Robert Marko <robert.marko@sartura.hr> -allOf: - - $ref: "mdio.yaml#" - properties: compatible: - const: qcom,ipq4019-mdio + oneOf: + - enum: + - qcom,ipq4019-mdio + - qcom,ipq5018-mdio + + - items: + - enum: + - qcom,ipq6018-mdio + - qcom,ipq8074-mdio + - const: qcom,ipq4019-mdio "#address-cells": const: 1 @@ -23,7 +29,35 @@ properties: const: 0 reg: - maxItems: 1 + minItems: 1 + maxItems: 2 + description: + the first Address and length of the register set for the MDIO controller. + the second Address and length of the register for ethernet LDO, this second + address range is only required by the platform IPQ50xx. + + clocks: + items: + - description: MDIO clock source frequency fixed to 100MHZ + + clock-names: + items: + - const: gcc_mdio_ahb_clk + + clock-frequency: + description: + The MDIO bus clock that must be output by the MDIO bus hardware, if + absent, the default hardware values are used. + + MDC rate is feed by an external clock (fixed 100MHz) and is divider + internally. The default divider is /256 resulting in the default rate + applied of 390KHz. + + To follow 802.3 standard that instruct up to 2.5MHz by default, if + this property is not declared and the divider is set to /256, by + default 1.5625Mhz is select. + enum: [ 390625, 781250, 1562500, 3125000, 6250000, 12500000 ] + default: 1562500 required: - compatible @@ -31,6 +65,28 @@ required: - "#address-cells" - "#size-cells" +allOf: + - $ref: mdio.yaml# + + - if: + properties: + compatible: + contains: + enum: + - qcom,ipq5018-mdio + - qcom,ipq6018-mdio + - qcom,ipq8074-mdio + then: + required: + - clocks + - clock-names + else: + properties: + clocks: false + clock-names: false + +unevaluatedProperties: false + examples: - | mdio@90000 { |