| Mugunthan V N | 2eb32b0 | 2012-07-30 10:17:14 +0000 | [diff] [blame^] | 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 |
| 12 | - host_port_no : Specifies host port shift |
| 13 | - cpdma_reg_ofs : Specifies CPDMA submodule register offset |
| 14 | - ale_reg_ofs : Specifies ALE submodule register offset |
| 15 | - ale_entries : Specifies No of entries ALE can hold |
| 16 | - host_port_reg_ofs : Specifies host port register offset |
| 17 | - hw_stats_reg_ofs : Specifies hardware statistics register offset |
| 18 | - bd_ram_ofs : Specifies internal desciptor RAM offset |
| 19 | - bd_ram_size : Specifies internal descriptor RAM size |
| 20 | - rx_descs : Specifies number of Rx descriptors |
| 21 | - mac_control : Specifies Default MAC control register content |
| 22 | for the specific platform |
| 23 | - slaves : Specifies number for slaves |
| 24 | - slave_reg_ofs : Specifies slave register offset |
| 25 | - sliver_reg_ofs : Specifies slave sliver register offset |
| 26 | - phy_id : Specifies slave phy id |
| 27 | - mac-address : Specifies slave MAC address |
| 28 | |
| 29 | Optional properties: |
| 30 | - ti,hwmods : Must be "cpgmac0" |
| 31 | - no_bd_ram : Must be 0 or 1 |
| 32 | |
| 33 | Note: "ti,hwmods" field is used to fetch the base address and irq |
| 34 | resources from TI, omap hwmod data base during device registration. |
| 35 | Future plan is to migrate hwmod data base contents into device tree |
| 36 | blob so that, all the required data will be used from device tree dts |
| 37 | file. |
| 38 | |
| 39 | Examples: |
| 40 | |
| 41 | mac: ethernet@4A100000 { |
| 42 | compatible = "ti,cpsw"; |
| 43 | reg = <0x4A100000 0x1000>; |
| 44 | interrupts = <55 0x4>; |
| 45 | interrupt-parent = <&intc>; |
| 46 | cpdma_channels = 8; |
| 47 | host_port_no = 0; |
| 48 | cpdma_reg_ofs = 0x800; |
| 49 | ale_reg_ofs = 0xd00; |
| 50 | ale_entries = 1024; |
| 51 | host_port_reg_ofs = 0x108; |
| 52 | hw_stats_reg_ofs = 0x900; |
| 53 | bd_ram_ofs = 0x2000; |
| 54 | bd_ram_size = 0x2000; |
| 55 | no_bd_ram = 0; |
| 56 | rx_descs = 64; |
| 57 | mac_control = 0x20; |
| 58 | slaves = 2; |
| 59 | slave@0 { |
| 60 | slave_reg_ofs = 0x208; |
| 61 | sliver_reg_ofs = 0xd80; |
| 62 | phy_id = "davinci_mdio-0:00" |
| 63 | mac-address = [00 04 9F 01 1B B8]; |
| 64 | }; |
| 65 | slave@1 { |
| 66 | slave_reg_ofs = 0x208; |
| 67 | sliver_reg_ofs = 0xd80; |
| 68 | phy_id = "davinci_mdio-0:01" |
| 69 | mac-address = [00 04 9F 01 1B B9]; |
| 70 | }; |
| 71 | }; |
| 72 | |
| 73 | (or) |
| 74 | |
| 75 | mac: ethernet@4A100000 { |
| 76 | compatible = "ti,cpsw"; |
| 77 | ti,hwmods = "cpgmac0"; |
| 78 | cpdma_channels = 8; |
| 79 | host_port_no = 0; |
| 80 | cpdma_reg_ofs = 0x800; |
| 81 | ale_reg_ofs = 0xd00; |
| 82 | ale_entries = 1024; |
| 83 | host_port_reg_ofs = 0x108; |
| 84 | hw_stats_reg_ofs = 0x900; |
| 85 | bd_ram_ofs = 0x2000; |
| 86 | bd_ram_size = 0x2000; |
| 87 | no_bd_ram = 0; |
| 88 | rx_descs = 64; |
| 89 | mac_control = 0x20; |
| 90 | slaves = 2; |
| 91 | slave@0 { |
| 92 | slave_reg_ofs = 0x208; |
| 93 | sliver_reg_ofs = 0xd80; |
| 94 | phy_id = "davinci_mdio-0:00" |
| 95 | mac-address = [00 04 9F 01 1B B8]; |
| 96 | }; |
| 97 | slave@1 { |
| 98 | slave_reg_ofs = 0x208; |
| 99 | sliver_reg_ofs = 0xd80; |
| 100 | phy_id = "davinci_mdio-0:01" |
| 101 | mac-address = [00 04 9F 01 1B B9]; |
| 102 | }; |
| 103 | |
| 104 | }; |