projects / mirror_ubuntu-jammy-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| 879bd83d FF |
1 | * Broadcom Starfighter 2 integrated swich |
| 2 | ||
| 3 | Required properties: | |
| 4 | ||
| 3b07d788 FF |
5 | - compatible: should be one of |
| 6 | "brcm,bcm7445-switch-v4.0" | |
| 7 | "brcm,bcm7278-switch-v4.0" | |
| 8 | "brcm,bcm7278-switch-v4.8" | |
| 879bd83d FF |
9 | - reg: addresses and length of the register sets for the device, must be 6 |
| 10 | pairs of register addresses and lengths | |
| 11 | - interrupts: interrupts for the devices, must be two interrupts | |
| a85fad14 FF |
12 | - #address-cells: must be 1, see dsa/dsa.txt |
| 13 | - #size-cells: must be 0, see dsa/dsa.txt | |
| 14 | ||
| 15 | Deprecated binding required properties: | |
| 16 | ||
| 879bd83d FF |
17 | - dsa,mii-bus: phandle to the MDIO bus controller, see dsa/dsa.txt |
| 18 | - dsa,ethernet: phandle to the CPU network interface controller, see dsa/dsa.txt | |
| 879bd83d FF |
19 | - #address-cells: must be 2, see dsa/dsa.txt |
| 20 | ||
| 21 | Subnodes: | |
| 22 | ||
| 23 | The integrated switch subnode should be specified according to the binding | |
| 24 | described in dsa/dsa.txt. | |
| 25 | ||
| 26 | Optional properties: | |
| 27 | ||
| 28 | - reg-names: litteral names for the device base register addresses, when present | |
| 29 | must be: "core", "reg", "intrl2_0", "intrl2_1", "fcb", "acb" | |
| 30 | ||
| 31 | - interrupt-names: litternal names for the device interrupt lines, when present | |
| 32 | must be: "switch_0" and "switch_1" | |
| 33 | ||
| 34 | - brcm,num-gphy: specify the maximum number of integrated gigabit PHYs in the | |
| 35 | switch | |
| 36 | ||
| 37 | - brcm,num-rgmii-ports: specify the maximum number of RGMII interfaces supported | |
| 38 | by the switch | |
| 39 | ||
| 40 | - brcm,fcb-pause-override: boolean property, if present indicates that the switch | |
| 41 | supports Failover Control Block pause override capability | |
| 42 | ||
| 43 | - brcm,acb-packets-inflight: boolean property, if present indicates that the switch | |
| 44 | Admission Control Block supports reporting the number of packets in-flight in a | |
| 45 | switch queue | |
| 46 | ||
| 9482d036 FF |
47 | - resets: a single phandle and reset identifier pair. See |
| 48 | Documentation/devicetree/binding/reset/reset.txt for details. | |
| 49 | ||
| 50 | - reset-names: If the "reset" property is specified, this property should have | |
| 51 | the value "switch" to denote the switch reset line. | |
| 52 | ||
| 64ff2aef FF |
53 | Port subnodes: |
| 54 | ||
| 55 | Optional properties: | |
| 56 | ||
| 57 | - brcm,use-bcm-hdr: boolean property, if present, indicates that the switch | |
| 58 | port has Broadcom tags enabled (per-packet metadata) | |
| 59 | ||
| 879bd83d FF |
60 | Example: |
| 61 | ||
| a85fad14 FF |
62 | switch_top@f0b00000 { |
| 63 | compatible = "simple-bus"; | |
| 64 | #size-cells = <1>; | |
| 65 | #address-cells = <1>; | |
| 66 | ranges = <0 0xf0b00000 0x40804>; | |
| 67 | ||
| 68 | ethernet_switch@0 { | |
| 69 | compatible = "brcm,bcm7445-switch-v4.0"; | |
| 70 | #size-cells = <0>; | |
| 71 | #address-cells = <1>; | |
| 72 | reg = <0x0 0x40000 | |
| 73 | 0x40000 0x110 | |
| 74 | 0x40340 0x30 | |
| 75 | 0x40380 0x30 | |
| 76 | 0x40400 0x34 | |
| 77 | 0x40600 0x208>; | |
| 78 | reg-names = "core", "reg", intrl2_0", "intrl2_1", | |
| 79 | "fcb, "acb"; | |
| 80 | interrupts = <0 0x18 0 | |
| 81 | 0 0x19 0>; | |
| 82 | brcm,num-gphy = <1>; | |
| 83 | brcm,num-rgmii-ports = <2>; | |
| 84 | brcm,fcb-pause-override; | |
| 85 | brcm,acb-packets-inflight; | |
| 86 | ||
| 87 | ports { | |
| 88 | #address-cells = <1>; | |
| 89 | #size-cells = <0>; | |
| 90 | ||
| 91 | port@0 { | |
| 92 | label = "gphy"; | |
| 93 | reg = <0>; | |
| 94 | }; | |
| 95 | }; | |
| 96 | }; | |
| 97 | }; | |
| 98 | ||
| 99 | Example using the old DSA DeviceTree binding: | |
| 100 | ||
| 879bd83d FF |
101 | switch_top@f0b00000 { |
| 102 | compatible = "simple-bus"; | |
| 103 | #size-cells = <1>; | |
| 104 | #address-cells = <1>; | |
| 105 | ranges = <0 0xf0b00000 0x40804>; | |
| 106 | ||
| 107 | ethernet_switch@0 { | |
| 108 | compatible = "brcm,bcm7445-switch-v4.0"; | |
| 109 | #size-cells = <0>; | |
| 110 | #address-cells = <2>; | |
| 111 | reg = <0x0 0x40000 | |
| 112 | 0x40000 0x110 | |
| 113 | 0x40340 0x30 | |
| 114 | 0x40380 0x30 | |
| 115 | 0x40400 0x34 | |
| 116 | 0x40600 0x208>; | |
| 117 | interrupts = <0 0x18 0 | |
| 118 | 0 0x19 0>; | |
| 119 | brcm,num-gphy = <1>; | |
| 120 | brcm,num-rgmii-ports = <2>; | |
| 121 | brcm,fcb-pause-override; | |
| 122 | brcm,acb-packets-inflight; | |
| 123 | ||
| 124 | ... | |
| 125 | switch@0 { | |
| 126 | reg = <0 0>; | |
| 127 | #size-cells = <0>; | |
| 128 | #address-cells <1>; | |
| 129 | ||
| 130 | port@0 { | |
| 131 | label = "gphy"; | |
| 132 | reg = <0>; | |
| 64ff2aef | 133 | brcm,use-bcm-hdr; |
| 879bd83d FF |
134 | }; |
| 135 | ... | |
| 136 | }; | |
| 137 | }; | |
| 138 | }; |