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dt-bindings: correct marvell orion MDIO binding document 

Correct the Marvell Orion MDIO binding document to properly reflect the
cases where an interrupt is present.  Augment the examples to show this.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Russell King 2017-04-10 16:28:15 +01:00 committed by David S. Miller
parent 7093a9702e
commit 2c26122e2c
1 changed files with 15 additions and 2 deletions
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17
Documentation/devicetree/bindings/net/marvell-orion-mdio.txt
View File

@ -7,7 +7,10 @@ interface.
Required properties:
- compatible: "marvell,orion-mdio"
- reg: address and length of the SMI register
- reg: address and length of the MDIO registers. When an interrupt is
not present, the length is the size of the SMI register (4 bytes)
otherwise it must be 0x84 bytes to cover the interrupt control
registers.
Optional properties:
- interrupts: interrupt line number for the SMI error/done interrupt
@ -17,7 +20,7 @@ The child nodes of the MDIO driver are the individual PHY devices
connected to this MDIO bus. They must have a "reg" property given the
PHY address on the MDIO bus.
Example at the SoC level:
Example at the SoC level without an interrupt property:
mdio {
#address-cells = <1>;
@ -26,6 +29,16 @@ mdio {
reg = <0xd0072004 0x4>;
};
Example with an interrupt property:
mdio {
#address-cells = <1>;
#size-cells = <0>;
compatible = "marvell,orion-mdio";
reg = <0xd0072004 0x84>;
interrupts = <30>;
};
And at the board level:
mdio {