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1 | * Broadcom Starfighter 2 integrated swich |
2 | ||
3 | Required properties: | |
4 | ||
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5 | - compatible: should be one of |
6 | "brcm,bcm7445-switch-v4.0" | |
7 | "brcm,bcm7278-switch-v4.0" | |
8 | "brcm,bcm7278-switch-v4.8" | |
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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 | |
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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 | ||
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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 | |
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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 | ||
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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 | ||
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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 | ||
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60 | Example: |
61 | ||
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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 | ||
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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; |
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134 | }; |
135 | ... | |
136 | }; | |
137 | }; | |
138 | }; |