1* Broadcom BCM7xxx Ethernet Controller (GENET) 2 3Required properties: 4- compatible: should contain one of "brcm,genet-v1", "brcm,genet-v2", 5 "brcm,genet-v3", "brcm,genet-v4", "brcm,genet-v5", "brcm,bcm2711-genet-v5". 6- reg: address and length of the register set for the device 7- interrupts and/or interrupts-extended: must be two cells, the first cell 8 is the general purpose interrupt line, while the second cell is the 9 interrupt for the ring RX and TX queues operating in ring mode. An 10 optional third interrupt cell for Wake-on-LAN can be specified. 11 See Documentation/devicetree/bindings/interrupt-controller/interrupts.txt 12 for information on the property specifics. 13- phy-mode: see ethernet.txt file in the same directory 14- #address-cells: should be 1 15- #size-cells: should be 1 16 17Optional properties: 18- clocks: When provided, must be two phandles to the functional clocks nodes 19 of the GENET block. The first phandle is the main GENET clock used during 20 normal operation, while the second phandle is the Wake-on-LAN clock. 21- clock-names: When provided, names of the functional clock phandles, first 22 name should be "enet" and second should be "enet-wol". 23 24- phy-handle: See ethernet.txt file in the same directory; used to describe 25 configurations where a PHY (internal or external) is used. 26 27- fixed-link: When the GENET interface is connected to a MoCA hardware block or 28 when operating in a RGMII to RGMII type of connection, or when the MDIO bus is 29 voluntarily disabled, this property should be used to describe the "fixed link". 30 See Documentation/devicetree/bindings/net/fixed-link.txt for information on 31 the property specifics 32 33Required child nodes: 34 35- mdio bus node: this node should always be present regardless of the PHY 36 configuration of the GENET instance 37 38MDIO bus node required properties: 39 40- compatible: should contain one of "brcm,genet-mdio-v1", "brcm,genet-mdio-v2" 41 "brcm,genet-mdio-v3", "brcm,genet-mdio-v4", "brcm,genet-mdio-v5", the version 42 has to match the parent node compatible property (e.g: brcm,genet-v4 pairs 43 with brcm,genet-mdio-v4) 44- reg: address and length relative to the parent node base register address 45- #address-cells: address cell for MDIO bus addressing, should be 1 46- #size-cells: size of the cells for MDIO bus addressing, should be 0 47 48Ethernet PHY node properties: 49 50See Documentation/devicetree/bindings/net/phy.txt for the list of required and 51optional properties. 52 53Internal Gigabit PHY example: 54 55ethernet@f0b60000 { 56 phy-mode = "internal"; 57 phy-handle = <&phy1>; 58 mac-address = [ 00 10 18 36 23 1a ]; 59 compatible = "brcm,genet-v4"; 60 #address-cells = <0x1>; 61 #size-cells = <0x1>; 62 reg = <0xf0b60000 0xfc4c>; 63 interrupts = <0x0 0x14 0x0>, <0x0 0x15 0x0>; 64 65 mdio@e14 { 66 compatible = "brcm,genet-mdio-v4"; 67 #address-cells = <0x1>; 68 #size-cells = <0x0>; 69 reg = <0xe14 0x8>; 70 71 phy1: ethernet-phy@1 { 72 max-speed = <1000>; 73 reg = <0x1>; 74 compatible = "ethernet-phy-ieee802.3-c22"; 75 }; 76 }; 77}; 78 79MoCA interface / MAC to MAC example: 80 81ethernet@f0b80000 { 82 phy-mode = "moca"; 83 fixed-link = <1 0 1000 0 0>; 84 mac-address = [ 00 10 18 36 24 1a ]; 85 compatible = "brcm,genet-v4"; 86 #address-cells = <0x1>; 87 #size-cells = <0x1>; 88 reg = <0xf0b80000 0xfc4c>; 89 interrupts = <0x0 0x16 0x0>, <0x0 0x17 0x0>; 90 91 mdio@e14 { 92 compatible = "brcm,genet-mdio-v4"; 93 #address-cells = <0x1>; 94 #size-cells = <0x0>; 95 reg = <0xe14 0x8>; 96 }; 97}; 98 99 100External MDIO-connected Gigabit PHY/switch: 101 102ethernet@f0ba0000 { 103 phy-mode = "rgmii"; 104 phy-handle = <&phy0>; 105 mac-address = [ 00 10 18 36 26 1a ]; 106 compatible = "brcm,genet-v4"; 107 #address-cells = <0x1>; 108 #size-cells = <0x1>; 109 reg = <0xf0ba0000 0xfc4c>; 110 interrupts = <0x0 0x18 0x0>, <0x0 0x19 0x0>; 111 112 mdio@e14 { 113 compatible = "brcm,genet-mdio-v4"; 114 #address-cells = <0x1>; 115 #size-cells = <0x0>; 116 reg = <0xe14 0x8>; 117 118 phy0: ethernet-phy@0 { 119 max-speed = <1000>; 120 reg = <0x0>; 121 compatible = "ethernet-phy-ieee802.3-c22"; 122 }; 123 }; 124}; 125