1 * PIP Ethernet nexus. 1 * PIP Ethernet nexus.
2 2
3 The PIP Ethernet nexus can control several dat 3 The PIP Ethernet nexus can control several data packet input/output
4 devices. The devices have a two level groupin 4 devices. The devices have a two level grouping scheme. There may be
5 several interfaces, and each interface may hav 5 several interfaces, and each interface may have several ports. These
6 ports might be an individual Ethernet PHY. 6 ports might be an individual Ethernet PHY.
7 7
8 8
9 Properties for the PIP nexus: 9 Properties for the PIP nexus:
10 - compatible: "cavium,octeon-3860-pip" 10 - compatible: "cavium,octeon-3860-pip"
11 11
12 Compatibility with all cn3XXX, cn5XXX and cn 12 Compatibility with all cn3XXX, cn5XXX and cn6XXX SOCs.
13 13
14 - reg: The base address of the PIP's register 14 - reg: The base address of the PIP's register bank.
15 15
16 - #address-cells: Must be <1>. 16 - #address-cells: Must be <1>.
17 17
18 - #size-cells: Must be <0>. 18 - #size-cells: Must be <0>.
19 19
20 Properties for PIP interfaces which is a child 20 Properties for PIP interfaces which is a child the PIP nexus:
21 - compatible: "cavium,octeon-3860-pip-interfac 21 - compatible: "cavium,octeon-3860-pip-interface"
22 22
23 Compatibility with all cn3XXX, cn5XXX and cn 23 Compatibility with all cn3XXX, cn5XXX and cn6XXX SOCs.
24 24
25 - reg: The interface number. 25 - reg: The interface number.
26 26
27 - #address-cells: Must be <1>. 27 - #address-cells: Must be <1>.
28 28
29 - #size-cells: Must be <0>. 29 - #size-cells: Must be <0>.
30 30
31 Properties for PIP port which is a child the P 31 Properties for PIP port which is a child the PIP interface:
32 - compatible: "cavium,octeon-3860-pip-port" 32 - compatible: "cavium,octeon-3860-pip-port"
33 33
34 Compatibility with all cn3XXX, cn5XXX and cn 34 Compatibility with all cn3XXX, cn5XXX and cn6XXX SOCs.
35 35
36 - reg: The port number within the interface gr 36 - reg: The port number within the interface group.
37 37
38 - phy-handle: Optional, see ethernet.txt file 38 - phy-handle: Optional, see ethernet.txt file in the same directory.
39 39
40 - rx-delay: Delay value for RGMII receive cloc 40 - rx-delay: Delay value for RGMII receive clock. Optional. Disabled if 0.
41 Value range is 1-31, and mapping to the actu 41 Value range is 1-31, and mapping to the actual delay varies depending on HW.
42 42
43 - tx-delay: Delay value for RGMII transmit clo 43 - tx-delay: Delay value for RGMII transmit clock. Optional. Disabled if 0.
44 Value range is 1-31, and mapping to the actu 44 Value range is 1-31, and mapping to the actual delay varies depending on HW.
45 45
46 Example: 46 Example:
47 47
48 pip@11800a0000000 { 48 pip@11800a0000000 {
49 compatible = "cavium,octeon-38 49 compatible = "cavium,octeon-3860-pip";
50 #address-cells = <1>; 50 #address-cells = <1>;
51 #size-cells = <0>; 51 #size-cells = <0>;
52 reg = <0x11800 0xa0000000 0x0 52 reg = <0x11800 0xa0000000 0x0 0x2000>;
53 53
54 interface@0 { 54 interface@0 {
55 compatible = "cavium,o 55 compatible = "cavium,octeon-3860-pip-interface";
56 #address-cells = <1>; 56 #address-cells = <1>;
57 #size-cells = <0>; 57 #size-cells = <0>;
58 reg = <0>; /* interfac 58 reg = <0>; /* interface */
59 59
60 ethernet@0 { 60 ethernet@0 {
61 compatible = " 61 compatible = "cavium,octeon-3860-pip-port";
62 reg = <0x0>; / 62 reg = <0x0>; /* Port */
63 local-mac-addr 63 local-mac-address = [ 00 0f b7 10 63 60 ];
64 phy-handle = < 64 phy-handle = <&phy2>;
65 }; 65 };
66 ethernet@1 { 66 ethernet@1 {
67 compatible = " 67 compatible = "cavium,octeon-3860-pip-port";
68 reg = <0x1>; / 68 reg = <0x1>; /* Port */
69 local-mac-addr 69 local-mac-address = [ 00 0f b7 10 63 61 ];
70 phy-handle = < 70 phy-handle = <&phy3>;
71 }; 71 };
72 ethernet@2 { 72 ethernet@2 {
73 compatible = " 73 compatible = "cavium,octeon-3860-pip-port";
74 reg = <0x2>; / 74 reg = <0x2>; /* Port */
75 local-mac-addr 75 local-mac-address = [ 00 0f b7 10 63 62 ];
76 phy-handle = < 76 phy-handle = <&phy4>;
77 }; 77 };
78 ethernet@3 { 78 ethernet@3 {
79 compatible = " 79 compatible = "cavium,octeon-3860-pip-port";
80 reg = <0x3>; / 80 reg = <0x3>; /* Port */
81 local-mac-addr 81 local-mac-address = [ 00 0f b7 10 63 63 ];
82 phy-handle = < 82 phy-handle = <&phy5>;
83 }; 83 };
84 }; 84 };
85 85
86 interface@1 { 86 interface@1 {
87 compatible = "cavium,o 87 compatible = "cavium,octeon-3860-pip-interface";
88 #address-cells = <1>; 88 #address-cells = <1>;
89 #size-cells = <0>; 89 #size-cells = <0>;
90 reg = <1>; /* interfac 90 reg = <1>; /* interface */
91 91
92 ethernet@0 { 92 ethernet@0 {
93 compatible = " 93 compatible = "cavium,octeon-3860-pip-port";
94 reg = <0x0>; / 94 reg = <0x0>; /* Port */
95 local-mac-addr 95 local-mac-address = [ 00 0f b7 10 63 64 ];
96 phy-handle = < 96 phy-handle = <&phy6>;
97 }; 97 };
98 }; 98 };
99 }; 99 };
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