1 TI SoC Ethernet Switch Controller Device Tree
2 ----------------------------------------------
3
4 Required properties:
5 - compatible : Should be one of the
6 "ti,cpsw" for backwa
7 "ti,am335x-cpsw" for
8 "ti,am4372-cpsw" for
9 "ti,dra7-cpsw" for D
10 - reg : physical base addres
11 registers map
12 - interrupts : property with a valu
13 number
14 - cpdma_channels : Specifies number of
15 - ale_entries : Specifies No of entr
16 - bd_ram_size : Specifies internal d
17 - mac_control : Specifies Default MA
18 for the specific pla
19 - slaves : Specifies number for
20 - active_slave : Specifies the slave
21 ethtool and SIOCGMII
22 - cpsw-phy-sel : Specifies the phandl
23 device. See also cps
24 Note that in legacy
25 a child device inste
26 (DEPRECATED, use phy
27
28 Optional properties:
29 - ti,hwmods : Must be "cpgmac0"
30 - dual_emac : Specifies Switch to
31 - syscon : Phandle to the syste
32 the control module d
33 - mode-gpios : Should be added if o
34 required to be drive
35 can be connected to
36 For example in dra72
37 driven low so that c
38 lines are connected
39 - cpts_clock_mult : Numerator to convert
40 - cpts_clock_shift : Denominator to conve
41 Mult and shift will
42 rftclk frequency if
43 cpts_clock_mult prop
44
45 Slave Properties:
46 Required properties:
47 - phy-mode : See ethernet.txt fil
48 - phys : phandle on phy-gmii-
49
50 Optional properties:
51 - dual_emac_res_vlan : Specifies VID to be
52 - phy_id : Specifies slave phy
53 - phy-handle : See ethernet.txt fil
54
55 The MAC address will be determined using the o
56 defined in ethernet.txt.
57
58 Slave sub-nodes:
59 - fixed-link : See fixed-link.txt f
60
61 Note: Exactly one of phy_id, phy-handle, or fi
62
63 Note: "ti,hwmods" field is used to fetch the b
64 resources from TI, omap hwmod data base during
65 Future plan is to migrate hwmod data base cont
66 blob so that, all the required data will be us
67 file.
68
69 Examples:
70
71 mac: ethernet@4a100000 {
72 compatible = "ti,cpsw";
73 reg = <0x4A100000 0x1000>;
74 interrupts = <55 0x4>;
75 interrupt-parent = <&intc>;
76 cpdma_channels = <8>;
77 ale_entries = <1024>;
78 bd_ram_size = <0x2000>;
79 rx_descs = <64>;
80 mac_control = <0x20>;
81 slaves = <2>;
82 active_slave = <0>;
83 cpts_clock_mult = <0x80000000>
84 cpts_clock_shift = <29>;
85 syscon = <&cm>;
86 cpsw-phy-sel = <&phy_sel>;
87 cpsw_emac0: slave@0 {
88 phy_id = <&davinci_mdi
89 phy-mode = "rgmii-txid
90 /* Filled in by U-Boot
91 mac-address = [ 00 00
92 phys = <&phy_gmii_sel
93 };
94 cpsw_emac1: slave@1 {
95 phy_id = <&davinci_mdi
96 phy-mode = "rgmii-txid
97 /* Filled in by U-Boot
98 mac-address = [ 00 00
99 phys = <&phy_gmii_sel
100 };
101 };
102
103 (or)
104 mac: ethernet@4a100000 {
105 compatible = "ti,cpsw";
106 ti,hwmods = "cpgmac0";
107 cpdma_channels = <8>;
108 ale_entries = <1024>;
109 bd_ram_size = <0x2000>;
110 rx_descs = <64>;
111 mac_control = <0x20>;
112 slaves = <2>;
113 active_slave = <0>;
114 cpts_clock_mult = <0x80000000>
115 cpts_clock_shift = <29>;
116 syscon = <&cm>;
117 cpsw-phy-sel = <&phy_sel>;
118 cpsw_emac0: slave@0 {
119 phy_id = <&davinci_mdi
120 phy-mode = "rgmii-txid
121 /* Filled in by U-Boot
122 mac-address = [ 00 00
123 phys = <&phy_gmii_sel
124 };
125 cpsw_emac1: slave@1 {
126 phy_id = <&davinci_mdi
127 phy-mode = "rgmii-txid
128 /* Filled in by U-Boot
129 mac-address = [ 00 00
130 phys = <&phy_gmii_sel
131 };
132 };
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