1 TI SoC Ethernet Switch Controller Device Tree Bindings
2 ------------------------------------------------------
5 - compatible : Should be one of the below:-
6 "ti,cpsw" for backward compatible
7 "ti,am335x-cpsw" for AM335x controllers
8 "ti,am4372-cpsw" for AM437x controllers
9 "ti,dra7-cpsw" for DRA7x controllers
10 - reg : physical base address and size of the cpsw
12 - interrupts : property with a value describing the interrupt
14 - interrupt-parent : The parent interrupt controller
15 - cpdma_channels : Specifies number of channels in CPDMA
16 - ale_entries : Specifies No of entries ALE can hold
17 - bd_ram_size : Specifies internal descriptor RAM size
18 - mac_control : Specifies Default MAC control register content
19 for the specific platform
20 - slaves : Specifies number for slaves
21 - active_slave : Specifies the slave to use for time stamping,
22 ethtool and SIOCGMIIPHY
23 - cpts_clock_mult : Numerator to convert input clock ticks into nanoseconds
24 - cpts_clock_shift : Denominator to convert input clock ticks into nanoseconds
27 - ti,hwmods : Must be "cpgmac0"
28 - no_bd_ram : Must be 0 or 1
29 - dual_emac : Specifies Switch to act as Dual EMAC
30 - syscon : Phandle to the system control device node, which is
31 the control module device of the am33x
32 - mode-gpios : Should be added if one/multiple gpio lines are
33 required to be driven so that cpsw data lines
34 can be connected to the phy via selective mux.
35 For example in dra72x-evm, pcf gpio has to be
36 driven low so that cpsw slave 0 and phy data
37 lines are connected via mux.
42 - phy-mode : See ethernet.txt file in the same directory
45 - dual_emac_res_vlan : Specifies VID to be used to segregate the ports
46 - mac-address : See ethernet.txt file in the same directory
47 - phy_id : Specifies slave phy id (deprecated, use phy-handle)
48 - phy-handle : See ethernet.txt file in the same directory
51 - fixed-link : See fixed-link.txt file in the same directory
53 Note: Exactly one of phy_id, phy-handle, or fixed-link must be specified.
55 Note: "ti,hwmods" field is used to fetch the base address and irq
56 resources from TI, omap hwmod data base during device registration.
57 Future plan is to migrate hwmod data base contents into device tree
58 blob so that, all the required data will be used from device tree dts
63 mac: ethernet@4A100000 {
64 compatible = "ti,cpsw";
65 reg = <0x4A100000 0x1000>;
66 interrupts = <55 0x4>;
67 interrupt-parent = <&intc>;
70 bd_ram_size = <0x2000>;
76 cpts_clock_mult = <0x80000000>;
77 cpts_clock_shift = <29>;
80 phy_id = <&davinci_mdio>, <0>;
81 phy-mode = "rgmii-txid";
82 /* Filled in by U-Boot */
83 mac-address = [ 00 00 00 00 00 00 ];
86 phy_id = <&davinci_mdio>, <1>;
87 phy-mode = "rgmii-txid";
88 /* Filled in by U-Boot */
89 mac-address = [ 00 00 00 00 00 00 ];
94 mac: ethernet@4A100000 {
95 compatible = "ti,cpsw";
96 ti,hwmods = "cpgmac0";
99 bd_ram_size = <0x2000>;
102 mac_control = <0x20>;
105 cpts_clock_mult = <0x80000000>;
106 cpts_clock_shift = <29>;
108 cpsw_emac0: slave@0 {
109 phy_id = <&davinci_mdio>, <0>;
110 phy-mode = "rgmii-txid";
111 /* Filled in by U-Boot */
112 mac-address = [ 00 00 00 00 00 00 ];
114 cpsw_emac1: slave@1 {
115 phy_id = <&davinci_mdio>, <1>;
116 phy-mode = "rgmii-txid";
117 /* Filled in by U-Boot */
118 mac-address = [ 00 00 00 00 00 00 ];