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dt-bindings: orion-mdio: document the new xmdio compatible 

A new compatible for Marvell xMDIO interfaces was added into the Marvell
MDIO driver. Document this new compatible.

Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Antoine Ténart 2017-06-15 16:43:25 +02:00 committed by David S. Miller
parent 0268b51e30
commit e0f7ed8dd7
1 changed files with 6 additions and 4 deletions
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10
Documentation/devicetree/bindings/net/marvell-orion-mdio.txt
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@ -1,12 +1,14 @@
* Marvell MDIO Ethernet Controller interface
The Ethernet controllers of the Marvel Kirkwood, Dove, Orion5x,
MV78xx0, Armada 370 and Armada XP have an identical unit that provides
an interface with the MDIO bus. This driver handles this MDIO
interface.
MV78xx0, Armada 370, Armada XP, Armada 7k and Armada 8k have an
identical unit that provides an interface with the MDIO bus.
Additionally, Armada 7k and Armada 8k has a second unit which
provides an interface with the xMDIO bus. This driver handles
these interfaces.
Required properties:
- compatible: "marvell,orion-mdio"
- compatible: "marvell,orion-mdio" or "marvell,xmdio"
- 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