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54 lines
1.4 KiB
54 lines
1.4 KiB
* Marvell MDIO Ethernet Controller interface |
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The Ethernet controllers of the Marvel Kirkwood, Dove, Orion5x, |
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MV78xx0, Armada 370, Armada XP, Armada 7k and Armada 8k have an |
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identical unit that provides an interface with the MDIO bus. |
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Additionally, Armada 7k and Armada 8k has a second unit which |
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provides an interface with the xMDIO bus. This driver handles |
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these interfaces. |
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Required properties: |
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- compatible: "marvell,orion-mdio" or "marvell,xmdio" |
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- reg: address and length of the MDIO registers. When an interrupt is |
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not present, the length is the size of the SMI register (4 bytes) |
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otherwise it must be 0x84 bytes to cover the interrupt control |
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registers. |
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Optional properties: |
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- interrupts: interrupt line number for the SMI error/done interrupt |
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- clocks: phandle for up to four required clocks for the MDIO instance |
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The child nodes of the MDIO driver are the individual PHY devices |
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connected to this MDIO bus. They must have a "reg" property given the |
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PHY address on the MDIO bus. |
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Example at the SoC level without an interrupt property: |
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mdio { |
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#address-cells = <1>; |
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#size-cells = <0>; |
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compatible = "marvell,orion-mdio"; |
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reg = <0xd0072004 0x4>; |
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}; |
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Example with an interrupt property: |
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mdio { |
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#address-cells = <1>; |
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#size-cells = <0>; |
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compatible = "marvell,orion-mdio"; |
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reg = <0xd0072004 0x84>; |
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interrupts = <30>; |
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}; |
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And at the board level: |
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mdio { |
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phy0: ethernet-phy@0 { |
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reg = <0>; |
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}; |
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phy1: ethernet-phy@1 { |
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reg = <1>; |
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}; |
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}
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