1Marvell DSA Switch Device Tree Bindings
2---------------------------------------
3
4WARNING: This binding is currently unstable. Do not program it into a
5FLASH never to be changed again. Once this binding is stable, this
6warning will be removed.
7
8If you need a stable binding, use the old dsa.txt binding.
9
10Marvell Switches are MDIO devices. The following properties should be
11placed as a child node of an mdio device.
12
13The properties described here are those specific to Marvell devices.
14Additional required and optional properties can be found in dsa.txt.
15
16The compatibility string is used only to find an identification register,
17which is at a different MDIO base address in different switch families.
18- "marvell,mv88e6085"	: Switch has base address 0x10. Use with models:
19			  6085, 6095, 6097, 6123, 6131, 6141, 6161, 6165,
20			  6171, 6172, 6175, 6176, 6185, 6240, 6320, 6321,
21			  6341, 6350, 6351, 6352
22- "marvell,mv88e6190"	: Switch has base address 0x00. Use with models:
23			  6163, 6190, 6190X, 6191, 6290, 6390, 6390X
24- "marvell,mv88e6250"	: Switch has base address 0x08 or 0x18. Use with model:
25			  6220, 6250
26
27Required properties:
28- compatible		: Should be one of "marvell,mv88e6085",
29			  "marvell,mv88e6190" or "marvell,mv88e6250" as
30			  indicated above
31- reg			: Address on the MII bus for the switch.
32
33Optional properties:
34
35- reset-gpios		: Should be a gpio specifier for a reset line
36- interrupts		: Interrupt from the switch
37- interrupt-controller	: Indicates the switch is itself an interrupt
38			  controller. This is used for the PHY interrupts.
39#interrupt-cells = <2>	: Controller uses two cells, number and flag
40- eeprom-length		: Set to the length of an EEPROM connected to the
41			  switch. Must be set if the switch can not detect
42			  the presence and/or size of a connected EEPROM,
43			  otherwise optional.
44- mdio			: Container of PHY and devices on the switches MDIO
45			  bus.
46- mdio?		: Container of PHYs and devices on the external MDIO
47			  bus. The node must contains a compatible string of
48			  "marvell,mv88e6xxx-mdio-external"
49
50Example:
51
52	mdio {
53		#address-cells = <1>;
54		#size-cells = <0>;
55		interrupt-parent = <&gpio0>;
56		interrupts = <27 IRQ_TYPE_LEVEL_LOW>;
57		interrupt-controller;
58		#interrupt-cells = <2>;
59
60		switch0: switch@0 {
61			compatible = "marvell,mv88e6085";
62			reg = <0>;
63			reset-gpios = <&gpio5 1 GPIO_ACTIVE_LOW>;
64
65			mdio {
66				#address-cells = <1>;
67				#size-cells = <0>;
68				switch1phy0: switch1phy0@0 {
69					reg = <0>;
70					interrupt-parent = <&switch0>;
71					interrupts = <0 IRQ_TYPE_LEVEL_HIGH>;
72				};
73			};
74		};
75	};
76
77	mdio {
78		#address-cells = <1>;
79		#size-cells = <0>;
80		interrupt-parent = <&gpio0>;
81		interrupts = <27 IRQ_TYPE_LEVEL_LOW>;
82		interrupt-controller;
83		#interrupt-cells = <2>;
84
85		switch0: switch@0 {
86			compatible = "marvell,mv88e6190";
87			reg = <0>;
88			reset-gpios = <&gpio5 1 GPIO_ACTIVE_LOW>;
89
90			mdio {
91				#address-cells = <1>;
92				#size-cells = <0>;
93				switch1phy0: switch1phy0@0 {
94					reg = <0>;
95					interrupt-parent = <&switch0>;
96					interrupts = <0 IRQ_TYPE_LEVEL_HIGH>;
97				};
98			};
99
100			mdio1 {
101				compatible = "marvell,mv88e6xxx-mdio-external";
102				#address-cells = <1>;
103				#size-cells = <0>;
104				switch1phy9: switch1phy0@9 {
105					reg = <9>;
106				};
107			};
108		};
109	};
110