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" or 6 "brcm,bcm7712-genet-v5". 7- reg: address and length of the register set for the device 8- interrupts and/or interrupts-extended: must be two cells, the first cell 9 is the general purpose interrupt line, while the second cell is the 10 interrupt for the ring RX and TX queues operating in ring mode. An 11 optional third interrupt cell for Wake-on-LAN can be specified. 12 See Documentation/devicetree/bindings/interrupt-controller/interrupts.txt 13 for information on the property specifics. 14- phy-mode: see ethernet.txt file in the same directory 15- #address-cells: should be 1 16- #size-cells: should be 1 17 18Optional properties: 19- clocks: When provided, must be two phandles to the functional clocks nodes 20 of the GENET block. The first phandle is the main GENET clock used during 21 normal operation, while the second phandle is the Wake-on-LAN clock. 22- clock-names: When provided, names of the functional clock phandles, first 23 name should be "enet" and second should be "enet-wol". 24 25- phy-handle: See ethernet.txt file in the same directory; used to describe 26 configurations where a PHY (internal or external) is used. 27 28- fixed-link: When the GENET interface is connected to a MoCA hardware block or 29 when operating in a RGMII to RGMII type of connection, or when the MDIO bus is 30 voluntarily disabled, this property should be used to describe the "fixed link". 31 See Documentation/devicetree/bindings/net/fixed-link.txt for information on 32 the property specifics 33 34Required child nodes: 35 36- mdio bus node: this node should always be present regardless of the PHY 37 configuration of the GENET instance 38 39MDIO bus node required properties: 40 41- compatible: should contain one of "brcm,genet-mdio-v1", "brcm,genet-mdio-v2" 42 "brcm,genet-mdio-v3", "brcm,genet-mdio-v4", "brcm,genet-mdio-v5", the version 43 has to match the parent node compatible property (e.g: brcm,genet-v4 pairs 44 with brcm,genet-mdio-v4) 45- reg: address and length relative to the parent node base register address 46- #address-cells: address cell for MDIO bus addressing, should be 1 47- #size-cells: size of the cells for MDIO bus addressing, should be 0 48 49Ethernet PHY node properties: 50 51See Documentation/devicetree/bindings/net/phy.txt for the list of required and 52optional properties. 53 54Internal Gigabit PHY example: 55 56ethernet@f0b60000 { 57 phy-mode = "internal"; 58 phy-handle = <&phy1>; 59 mac-address = [ 00 10 18 36 23 1a ]; 60 compatible = "brcm,genet-v4"; 61 #address-cells = <0x1>; 62 #size-cells = <0x1>; 63 reg = <0xf0b60000 0xfc4c>; 64 interrupts = <0x0 0x14 0x0>, <0x0 0x15 0x0>; 65 66 mdio@e14 { 67 compatible = "brcm,genet-mdio-v4"; 68 #address-cells = <0x1>; 69 #size-cells = <0x0>; 70 reg = <0xe14 0x8>; 71 72 phy1: ethernet-phy@1 { 73 max-speed = <1000>; 74 reg = <0x1>; 75 compatible = "ethernet-phy-ieee802.3-c22"; 76 }; 77 }; 78}; 79 80MoCA interface / MAC to MAC example: 81 82ethernet@f0b80000 { 83 phy-mode = "moca"; 84 fixed-link = <1 0 1000 0 0>; 85 mac-address = [ 00 10 18 36 24 1a ]; 86 compatible = "brcm,genet-v4"; 87 #address-cells = <0x1>; 88 #size-cells = <0x1>; 89 reg = <0xf0b80000 0xfc4c>; 90 interrupts = <0x0 0x16 0x0>, <0x0 0x17 0x0>; 91 92 mdio@e14 { 93 compatible = "brcm,genet-mdio-v4"; 94 #address-cells = <0x1>; 95 #size-cells = <0x0>; 96 reg = <0xe14 0x8>; 97 }; 98}; 99 100 101External MDIO-connected Gigabit PHY/switch: 102 103ethernet@f0ba0000 { 104 phy-mode = "rgmii"; 105 phy-handle = <&phy0>; 106 mac-address = [ 00 10 18 36 26 1a ]; 107 compatible = "brcm,genet-v4"; 108 #address-cells = <0x1>; 109 #size-cells = <0x1>; 110 reg = <0xf0ba0000 0xfc4c>; 111 interrupts = <0x0 0x18 0x0>, <0x0 0x19 0x0>; 112 113 mdio@e14 { 114 compatible = "brcm,genet-mdio-v4"; 115 #address-cells = <0x1>; 116 #size-cells = <0x0>; 117 reg = <0xe14 0x8>; 118 119 phy0: ethernet-phy@0 { 120 max-speed = <1000>; 121 reg = <0x0>; 122 compatible = "ethernet-phy-ieee802.3-c22"; 123 }; 124 }; 125}; 126