Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 1 | MVEBU comphy drivers |
| 2 | -------------------- |
| 3 | |
| 4 | COMPHY controllers can be found on the following Marvell MVEBU SoCs: |
| 5 | * Armada 7k/8k (on the CP110) |
| 6 | * Armada 3700 |
| 7 | It provides a number of shared PHYs used by various interfaces (network, SATA, |
| 8 | USB, PCIe...). |
| 9 | |
| 10 | Required properties: |
| 11 | |
| 12 | - compatible: should be one of: |
| 13 | * "marvell,comphy-cp110" for Armada 7k/8k |
| 14 | * "marvell,comphy-a3700" for Armada 3700 |
| 15 | - reg: should contain the COMPHY register(s) location(s) and length(s). |
| 16 | * 1 entry for Armada 7k/8k |
| 17 | * 4 entries for Armada 3700 along with the corresponding reg-names |
| 18 | properties, memory areas are: |
| 19 | * Generic COMPHY registers |
| 20 | * Lane 1 (PCIe/GbE) |
| 21 | * Lane 0 (USB3/GbE) |
| 22 | * Lane 2 (SATA/USB3) |
| 23 | - marvell,system-controller: should contain a phandle to the system |
| 24 | controller node (only for Armada 7k/8k) |
| 25 | - #address-cells: should be 1. |
| 26 | - #size-cells: should be 0. |
| 27 | |
| 28 | Optional properlties: |
| 29 | |
| 30 | - clocks: pointers to the reference clocks for this device (CP110 only), |
| 31 | consequently: MG clock, MG Core clock, AXI clock. |
| 32 | - clock-names: names of used clocks for CP110 only, must be : |
| 33 | "mg_clk", "mg_core_clk" and "axi_clk". |
| 34 | |
| 35 | A sub-node is required for each comphy lane provided by the comphy. |
| 36 | |
| 37 | Required properties (child nodes): |
| 38 | |
| 39 | - reg: COMPHY lane number. |
| 40 | - #phy-cells : from the generic PHY bindings, must be 1. Defines the |
| 41 | input port to use for a given comphy lane. |
| 42 | |
| 43 | Examples: |
| 44 | |
| 45 | CP11X_LABEL(comphy): phy@120000 { |
| 46 | compatible = "marvell,comphy-cp110"; |
| 47 | reg = <0x120000 0x6000>; |
| 48 | marvell,system-controller = <&CP11X_LABEL(syscon0)>; |
| 49 | clocks = <&CP11X_LABEL(clk) 1 5>, <&CP11X_LABEL(clk) 1 6>, |
| 50 | <&CP11X_LABEL(clk) 1 18>; |
| 51 | clock-names = "mg_clk", "mg_core_clk", "axi_clk"; |
| 52 | #address-cells = <1>; |
| 53 | #size-cells = <0>; |
| 54 | |
| 55 | CP11X_LABEL(comphy0): phy@0 { |
| 56 | reg = <0>; |
| 57 | #phy-cells = <1>; |
| 58 | }; |
| 59 | |
| 60 | CP11X_LABEL(comphy1): phy@1 { |
| 61 | reg = <1>; |
| 62 | #phy-cells = <1>; |
| 63 | }; |
| 64 | }; |
| 65 | |
| 66 | comphy: phy@18300 { |
| 67 | compatible = "marvell,comphy-a3700"; |
| 68 | reg = <0x18300 0x300>, |
| 69 | <0x1F000 0x400>, |
| 70 | <0x5C000 0x400>, |
| 71 | <0xe0178 0x8>; |
| 72 | reg-names = "comphy", |
| 73 | "lane1_pcie_gbe", |
| 74 | "lane0_usb3_gbe", |
| 75 | "lane2_sata_usb3"; |
| 76 | #address-cells = <1>; |
| 77 | #size-cells = <0>; |
| 78 | |
| 79 | |
| 80 | comphy0: phy@0 { |
| 81 | reg = <0>; |
| 82 | #phy-cells = <1>; |
| 83 | }; |
| 84 | |
| 85 | comphy1: phy@1 { |
| 86 | reg = <1>; |
| 87 | #phy-cells = <1>; |
| 88 | }; |
| 89 | |
| 90 | comphy2: phy@2 { |
| 91 | reg = <2>; |
| 92 | #phy-cells = <1>; |
| 93 | }; |
| 94 | }; |