Commit | Line | Data |
---|---|---|
2eb32b0a M |
1 | TI SoC Ethernet Switch Controller Device Tree Bindings |
2 | ------------------------------------------------------ | |
3 | ||
4 | Required properties: | |
5 | - compatible : Should be "ti,cpsw" | |
6 | - reg : physical base address and size of the cpsw | |
7 | registers map | |
8 | - interrupts : property with a value describing the interrupt | |
9 | number | |
10 | - interrupt-parent : The parent interrupt controller | |
11 | - cpdma_channels : Specifies number of channels in CPDMA | |
2eb32b0a | 12 | - ale_entries : Specifies No of entries ALE can hold |
2eb32b0a M |
13 | - bd_ram_size : Specifies internal descriptor RAM size |
14 | - rx_descs : Specifies number of Rx descriptors | |
15 | - mac_control : Specifies Default MAC control register content | |
16 | for the specific platform | |
17 | - slaves : Specifies number for slaves | |
e86ac13b M |
18 | - active_slave : Specifies the slave to use for time stamping, |
19 | ethtool and SIOCGMIIPHY | |
00ab94ee RC |
20 | - cpts_clock_mult : Numerator to convert input clock ticks into nanoseconds |
21 | - cpts_clock_shift : Denominator to convert input clock ticks into nanoseconds | |
2eb32b0a M |
22 | |
23 | Optional properties: | |
24 | - ti,hwmods : Must be "cpgmac0" | |
25 | - no_bd_ram : Must be 0 or 1 | |
d9ba8f9e | 26 | - dual_emac : Specifies Switch to act as Dual EMAC |
0ba517b1 MP |
27 | - syscon : Phandle to the system control device node, which is |
28 | the control module device of the am33x | |
470d1474 M |
29 | |
30 | Slave Properties: | |
31 | Required properties: | |
32 | - phy_id : Specifies slave phy id | |
e8f08ee0 | 33 | - phy-mode : See ethernet.txt file in the same directory |
470d1474 M |
34 | |
35 | Optional properties: | |
d9ba8f9e | 36 | - dual_emac_res_vlan : Specifies VID to be used to segregate the ports |
e4a9839b | 37 | - mac-address : See ethernet.txt file in the same directory |
2eb32b0a M |
38 | |
39 | Note: "ti,hwmods" field is used to fetch the base address and irq | |
40 | resources from TI, omap hwmod data base during device registration. | |
41 | Future plan is to migrate hwmod data base contents into device tree | |
42 | blob so that, all the required data will be used from device tree dts | |
43 | file. | |
44 | ||
45 | Examples: | |
46 | ||
47 | mac: ethernet@4A100000 { | |
48 | compatible = "ti,cpsw"; | |
49 | reg = <0x4A100000 0x1000>; | |
50 | interrupts = <55 0x4>; | |
51 | interrupt-parent = <&intc>; | |
e07b94f1 | 52 | cpdma_channels = <8>; |
e07b94f1 | 53 | ale_entries = <1024>; |
e07b94f1 M |
54 | bd_ram_size = <0x2000>; |
55 | no_bd_ram = <0>; | |
56 | rx_descs = <64>; | |
57 | mac_control = <0x20>; | |
58 | slaves = <2>; | |
e86ac13b | 59 | active_slave = <0>; |
00ab94ee RC |
60 | cpts_clock_mult = <0x80000000>; |
61 | cpts_clock_shift = <29>; | |
0ba517b1 | 62 | syscon = <&cm>; |
e07b94f1 | 63 | cpsw_emac0: slave@0 { |
549985ee | 64 | phy_id = <&davinci_mdio>, <0>; |
c5ceea7a | 65 | phy-mode = "rgmii-txid"; |
e07b94f1 M |
66 | /* Filled in by U-Boot */ |
67 | mac-address = [ 00 00 00 00 00 00 ]; | |
2eb32b0a | 68 | }; |
e07b94f1 | 69 | cpsw_emac1: slave@1 { |
549985ee | 70 | phy_id = <&davinci_mdio>, <1>; |
c5ceea7a | 71 | phy-mode = "rgmii-txid"; |
e07b94f1 M |
72 | /* Filled in by U-Boot */ |
73 | mac-address = [ 00 00 00 00 00 00 ]; | |
2eb32b0a M |
74 | }; |
75 | }; | |
76 | ||
77 | (or) | |
2eb32b0a M |
78 | mac: ethernet@4A100000 { |
79 | compatible = "ti,cpsw"; | |
80 | ti,hwmods = "cpgmac0"; | |
e07b94f1 | 81 | cpdma_channels = <8>; |
e07b94f1 | 82 | ale_entries = <1024>; |
e07b94f1 M |
83 | bd_ram_size = <0x2000>; |
84 | no_bd_ram = <0>; | |
85 | rx_descs = <64>; | |
86 | mac_control = <0x20>; | |
87 | slaves = <2>; | |
e86ac13b | 88 | active_slave = <0>; |
00ab94ee RC |
89 | cpts_clock_mult = <0x80000000>; |
90 | cpts_clock_shift = <29>; | |
0ba517b1 | 91 | syscon = <&cm>; |
e07b94f1 | 92 | cpsw_emac0: slave@0 { |
549985ee | 93 | phy_id = <&davinci_mdio>, <0>; |
c5ceea7a | 94 | phy-mode = "rgmii-txid"; |
e07b94f1 M |
95 | /* Filled in by U-Boot */ |
96 | mac-address = [ 00 00 00 00 00 00 ]; | |
2eb32b0a | 97 | }; |
e07b94f1 | 98 | cpsw_emac1: slave@1 { |
549985ee | 99 | phy_id = <&davinci_mdio>, <1>; |
c5ceea7a | 100 | phy-mode = "rgmii-txid"; |
e07b94f1 M |
101 | /* Filled in by U-Boot */ |
102 | mac-address = [ 00 00 00 00 00 00 ]; | |
2eb32b0a | 103 | }; |
2eb32b0a | 104 | }; |