projects / mirror_ubuntu-artful-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| 14c7b3c3 AL |
1 | Marvell DSA Switch Device Tree Bindings |
| 2 | --------------------------------------- | |
| 3 | ||
| 4 | WARNING: This binding is currently unstable. Do not program it into a | |
| 5 | FLASH never to be changed again. Once this binding is stable, this | |
| 6 | warning will be removed. | |
| 7 | ||
| 8 | If you need a stable binding, use the old dsa.txt binding. | |
| 9 | ||
| 10 | Marvell Switches are MDIO devices. The following properties should be | |
| 11 | placed as a child node of an mdio device. | |
| 12 | ||
| 52638f71 AL |
13 | The properties described here are those specific to Marvell devices. |
| 14 | Additional required and optional properties can be found in dsa.txt. | |
| 15 | ||
| 14c7b3c3 | 16 | Required properties: |
| d2345599 AL |
17 | - compatible : Should be one of "marvell,mv88e6085" or |
| 18 | "marvell,mv88e6190" | |
| 19 | - reg : Address on the MII bus for the switch. | |
| 14c7b3c3 | 20 | |
| 52638f71 AL |
21 | Optional properties: |
| 22 | ||
| 23 | - reset-gpios : Should be a gpio specifier for a reset line | |
| dc30c35b AL |
24 | - interrupt-parent : Parent interrupt controller |
| 25 | - interrupts : Interrupt from the switch | |
| 26 | - interrupt-controller : Indicates the switch is itself an interrupt | |
| 27 | controller. This is used for the PHY interrupts. | |
| 28 | #interrupt-cells = <2> : Controller uses two cells, number and flag | |
| 6c713a3a AL |
29 | - eeprom-length : Set to the length of an EEPROM connected to the |
| 30 | switch. Must be set if the switch can not detect | |
| 31 | the presence and/or size of a connected EEPROM, | |
| 32 | otherwise optional. | |
| a3c53be5 AL |
33 | - mdio : Container of PHY and devices on the switches MDIO |
| 34 | bus. | |
| d2345599 | 35 | - mdio? : Container of PHYs and devices on the external MDIO |
| a3c53be5 AL |
36 | bus. The node must contains a compatible string of |
| 37 | "marvell,mv88e6xxx-mdio-external" | |
| 38 | ||
| 14c7b3c3 AL |
39 | Example: |
| 40 | ||
| d2345599 AL |
41 | mdio { |
| 42 | #address-cells = <1>; | |
| 43 | #size-cells = <0>; | |
| 44 | interrupt-parent = <&gpio0>; | |
| 45 | interrupts = <27 IRQ_TYPE_LEVEL_LOW>; | |
| 46 | interrupt-controller; | |
| 47 | #interrupt-cells = <2>; | |
| 14c7b3c3 | 48 | |
| d2345599 AL |
49 | switch0: switch@0 { |
| 50 | compatible = "marvell,mv88e6085"; | |
| 51 | reg = <0>; | |
| 52 | reset-gpios = <&gpio5 1 GPIO_ACTIVE_LOW>; | |
| 53 | }; | |
| 54 | mdio { | |
| 55 | #address-cells = <1>; | |
| 56 | #size-cells = <0>; | |
| 57 | switch1phy0: switch1phy0@0 { | |
| 58 | reg = <0>; | |
| 59 | interrupt-parent = <&switch0>; | |
| 60 | interrupts = <0 IRQ_TYPE_LEVEL_HIGH>; | |
| 61 | }; | |
| 62 | }; | |
| 63 | }; | |
| a3c53be5 | 64 | |
| d2345599 AL |
65 | mdio { |
| 66 | #address-cells = <1>; | |
| 67 | #size-cells = <0>; | |
| 68 | interrupt-parent = <&gpio0>; | |
| 69 | interrupts = <27 IRQ_TYPE_LEVEL_LOW>; | |
| 70 | interrupt-controller; | |
| 71 | #interrupt-cells = <2>; | |
| a3c53be5 | 72 | |
| d2345599 AL |
73 | switch0: switch@0 { |
| 74 | compatible = "marvell,mv88e6390"; | |
| 75 | reg = <0>; | |
| 76 | reset-gpios = <&gpio5 1 GPIO_ACTIVE_LOW>; | |
| 77 | }; | |
| 78 | mdio { | |
| 79 | #address-cells = <1>; | |
| 80 | #size-cells = <0>; | |
| 81 | switch1phy0: switch1phy0@0 { | |
| 82 | reg = <0>; | |
| 83 | interrupt-parent = <&switch0>; | |
| 84 | interrupts = <0 IRQ_TYPE_LEVEL_HIGH>; | |
| 85 | }; | |
| 86 | }; | |
| a3c53be5 | 87 | |
| d2345599 AL |
88 | mdio1 { |
| 89 | compatible = "marvell,mv88e6xxx-mdio-external"; | |
| 90 | #address-cells = <1>; | |
| 91 | #size-cells = <0>; | |
| 92 | switch1phy9: switch1phy0@9 { | |
| 93 | reg = <9>; | |
| 94 | }; | |
| 95 | }; | |
| 96 | }; |