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linux-next/Documentation/devicetree/bindings/net/cavium-pip.txt
Sergei Shtylyov e8f08ee0ad DT: net: document Ethernet bindings in one place
This patch is an attempt to gather the Ethernet related bindings in one file,
like it's done in the MMC and some other subsystems. It should save some of
the trouble of documenting several properties over and over in each binding
document, instead only making reference to the main file.

I have used the Embedded Power Architecture(TM) Platform Requirements (ePAPR)
standard as a base for the properties description, also documenting some ad-hoc
properties that have been introduced over time despite having direct analogs in
ePAPR.

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-02-18 17:05:39 -05:00

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* PIP Ethernet nexus.
The PIP Ethernet nexus can control several data packet input/output
devices. The devices have a two level grouping scheme. There may be
several interfaces, and each interface may have several ports. These
ports might be an individual Ethernet PHY.
Properties for the PIP nexus:
- compatible: "cavium,octeon-3860-pip"
Compatibility with all cn3XXX, cn5XXX and cn6XXX SOCs.
- reg: The base address of the PIP's register bank.
- #address-cells: Must be <1>.
- #size-cells: Must be <0>.
Properties for PIP interfaces which is a child the PIP nexus:
- compatible: "cavium,octeon-3860-pip-interface"
Compatibility with all cn3XXX, cn5XXX and cn6XXX SOCs.
- reg: The interface number.
- #address-cells: Must be <1>.
- #size-cells: Must be <0>.
Properties for PIP port which is a child the PIP interface:
- compatible: "cavium,octeon-3860-pip-port"
Compatibility with all cn3XXX, cn5XXX and cn6XXX SOCs.
- reg: The port number within the interface group.
- phy-handle: Optional, see ethernet.txt file in the same directory.
Example:
pip@11800a0000000 {
compatible = "cavium,octeon-3860-pip";
#address-cells = <1>;
#size-cells = <0>;
reg = <0x11800 0xa0000000 0x0 0x2000>;
interface@0 {
compatible = "cavium,octeon-3860-pip-interface";
#address-cells = <1>;
#size-cells = <0>;
reg = <0>; /* interface */
ethernet@0 {
compatible = "cavium,octeon-3860-pip-port";
reg = <0x0>; /* Port */
local-mac-address = [ 00 0f b7 10 63 60 ];
phy-handle = <&phy2>;
};
ethernet@1 {
compatible = "cavium,octeon-3860-pip-port";
reg = <0x1>; /* Port */
local-mac-address = [ 00 0f b7 10 63 61 ];
phy-handle = <&phy3>;
};
ethernet@2 {
compatible = "cavium,octeon-3860-pip-port";
reg = <0x2>; /* Port */
local-mac-address = [ 00 0f b7 10 63 62 ];
phy-handle = <&phy4>;
};
ethernet@3 {
compatible = "cavium,octeon-3860-pip-port";
reg = <0x3>; /* Port */
local-mac-address = [ 00 0f b7 10 63 63 ];
phy-handle = <&phy5>;
};
};
interface@1 {
compatible = "cavium,octeon-3860-pip-interface";
#address-cells = <1>;
#size-cells = <0>;
reg = <1>; /* interface */
ethernet@0 {
compatible = "cavium,octeon-3860-pip-port";
reg = <0x0>; /* Port */
local-mac-address = [ 00 0f b7 10 63 64 ];
phy-handle = <&phy6>;
};
};
};