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authorAndrew Lunn <andrew@lunn.ch>2016-10-16 19:56:49 +0200
committerDavid S. Miller <davem@davemloft.net>2016-10-17 11:18:08 -0400
commitdc30c35be720aa7c62bd9fa4d506be2d686e9165 (patch)
tree6c8454d3362caccba095f0c1bc39c8bba9c0c2ee /Documentation/devicetree/bindings/net/dsa
parent9c7cbcf5a87076c210bec87458424be7841755b5 (diff)
downloadlinux-stericsson-dc30c35be720aa7c62bd9fa4d506be2d686e9165.tar.gz
net: dsa: mv88e6xxx: Implement interrupt support.
The switch can have up to two interrupt controllers. One of these contains the interrupts from the integrated PHYs, so is useful to export. The Marvell PHY driver can then be used in interrupt mode, rather than polling, speeding up PHY handling and reducing load on the MDIO bus. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'Documentation/devicetree/bindings/net/dsa')
-rw-r--r--Documentation/devicetree/bindings/net/dsa/marvell.txt21
1 files changed, 20 insertions, 1 deletions
diff --git a/Documentation/devicetree/bindings/net/dsa/marvell.txt b/Documentation/devicetree/bindings/net/dsa/marvell.txt
index 7629189398aa..32025eb4b31b 100644
--- a/Documentation/devicetree/bindings/net/dsa/marvell.txt
+++ b/Documentation/devicetree/bindings/net/dsa/marvell.txt
@@ -20,16 +20,35 @@ Required properties:
Optional properties:
- reset-gpios : Should be a gpio specifier for a reset line
-
+- interrupt-parent : Parent interrupt controller
+- interrupts : Interrupt from the switch
+- interrupt-controller : Indicates the switch is itself an interrupt
+ controller. This is used for the PHY interrupts.
+#interrupt-cells = <2> : Controller uses two cells, number and flag
+- mdio : container of PHY and devices on the switches MDIO
+ bus
Example:
mdio {
#address-cells = <1>;
#size-cells = <0>;
+ interrupt-parent = <&gpio0>;
+ interrupts = <27 IRQ_TYPE_LEVEL_LOW>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
switch0: switch@0 {
compatible = "marvell,mv88e6085";
reg = <0>;
reset-gpios = <&gpio5 1 GPIO_ACTIVE_LOW>;
};
+ mdio {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ switch1phy0: switch1phy0@0 {
+ reg = <0>;
+ interrupt-parent = <&switch0>;
+ interrupts = <0 IRQ_TYPE_LEVEL_HIGH>;
+ };
+ };
};