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124 lines
3.8 KiB
124 lines
3.8 KiB
* Broadcom BCM7xxx Ethernet Controller (GENET) |
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Required properties: |
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- compatible: should contain one of "brcm,genet-v1", "brcm,genet-v2", |
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"brcm,genet-v3", "brcm,genet-v4", "brcm,genet-v5", "brcm,bcm2711-genet-v5". |
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- reg: address and length of the register set for the device |
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- interrupts and/or interrupts-extended: must be two cells, the first cell |
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is the general purpose interrupt line, while the second cell is the |
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interrupt for the ring RX and TX queues operating in ring mode. An |
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optional third interrupt cell for Wake-on-LAN can be specified. |
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See Documentation/devicetree/bindings/interrupt-controller/interrupts.txt |
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for information on the property specifics. |
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- phy-mode: see ethernet.txt file in the same directory |
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- #address-cells: should be 1 |
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- #size-cells: should be 1 |
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Optional properties: |
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- clocks: When provided, must be two phandles to the functional clocks nodes |
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of the GENET block. The first phandle is the main GENET clock used during |
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normal operation, while the second phandle is the Wake-on-LAN clock. |
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- clock-names: When provided, names of the functional clock phandles, first |
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name should be "enet" and second should be "enet-wol". |
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- phy-handle: See ethernet.txt file in the same directory; used to describe |
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configurations where a PHY (internal or external) is used. |
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- fixed-link: When the GENET interface is connected to a MoCA hardware block or |
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when operating in a RGMII to RGMII type of connection, or when the MDIO bus is |
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voluntarily disabled, this property should be used to describe the "fixed link". |
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See Documentation/devicetree/bindings/net/fixed-link.txt for information on |
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the property specifics |
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Required child nodes: |
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- mdio bus node: this node should always be present regardless of the PHY |
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configuration of the GENET instance |
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MDIO bus node required properties: |
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- compatible: should contain one of "brcm,genet-mdio-v1", "brcm,genet-mdio-v2" |
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"brcm,genet-mdio-v3", "brcm,genet-mdio-v4", "brcm,genet-mdio-v5", the version |
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has to match the parent node compatible property (e.g: brcm,genet-v4 pairs |
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with brcm,genet-mdio-v4) |
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- reg: address and length relative to the parent node base register address |
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- #address-cells: address cell for MDIO bus addressing, should be 1 |
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- #size-cells: size of the cells for MDIO bus addressing, should be 0 |
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Ethernet PHY node properties: |
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See Documentation/devicetree/bindings/net/phy.txt for the list of required and |
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optional properties. |
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Internal Gigabit PHY example: |
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ethernet@f0b60000 { |
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phy-mode = "internal"; |
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phy-handle = <&phy1>; |
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mac-address = [ 00 10 18 36 23 1a ]; |
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compatible = "brcm,genet-v4"; |
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#address-cells = <0x1>; |
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#size-cells = <0x1>; |
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reg = <0xf0b60000 0xfc4c>; |
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interrupts = <0x0 0x14 0x0>, <0x0 0x15 0x0>; |
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mdio@e14 { |
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compatible = "brcm,genet-mdio-v4"; |
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#address-cells = <0x1>; |
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#size-cells = <0x0>; |
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reg = <0xe14 0x8>; |
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phy1: ethernet-phy@1 { |
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max-speed = <1000>; |
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reg = <0x1>; |
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compatible = "ethernet-phy-ieee802.3-c22"; |
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}; |
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}; |
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}; |
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MoCA interface / MAC to MAC example: |
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ethernet@f0b80000 { |
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phy-mode = "moca"; |
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fixed-link = <1 0 1000 0 0>; |
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mac-address = [ 00 10 18 36 24 1a ]; |
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compatible = "brcm,genet-v4"; |
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#address-cells = <0x1>; |
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#size-cells = <0x1>; |
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reg = <0xf0b80000 0xfc4c>; |
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interrupts = <0x0 0x16 0x0>, <0x0 0x17 0x0>; |
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mdio@e14 { |
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compatible = "brcm,genet-mdio-v4"; |
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#address-cells = <0x1>; |
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#size-cells = <0x0>; |
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reg = <0xe14 0x8>; |
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}; |
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}; |
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External MDIO-connected Gigabit PHY/switch: |
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ethernet@f0ba0000 { |
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phy-mode = "rgmii"; |
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phy-handle = <&phy0>; |
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mac-address = [ 00 10 18 36 26 1a ]; |
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compatible = "brcm,genet-v4"; |
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#address-cells = <0x1>; |
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#size-cells = <0x1>; |
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reg = <0xf0ba0000 0xfc4c>; |
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interrupts = <0x0 0x18 0x0>, <0x0 0x19 0x0>; |
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mdio@e14 { |
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compatible = "brcm,genet-mdio-v4"; |
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#address-cells = <0x1>; |
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#size-cells = <0x0>; |
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reg = <0xe14 0x8>; |
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phy0: ethernet-phy@0 { |
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max-speed = <1000>; |
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reg = <0x0>; |
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compatible = "ethernet-phy-ieee802.3-c22"; |
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}; |
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}; |
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};
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