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This patch adds a separate driver for the MDIO interface of the Marvell Ethernet controllers based on driver model. There are two reasons to have a separate driver rather than including it inside the MAC driver itself: *) The MDIO interface is shared by all Ethernet ports, so a driver must guarantee non-concurrent accesses to this MDIO interface. The most logical way is to have a separate driver that handles this single MDIO interface, used by all Ethernet ports. *) The MDIO interface is the same between the existing mv643xx_eth driver and the new mvneta/mvpp2 driver. Even though it is for now only used by the mvneta/mvpp2 driver, it will in the future be used by the mv643xx_eth driver as well. This driver supports SMI IEEE for 802.3 Clause 22 and XSMI for IEEE 802.3 Clause 45. This patch also adds device tree binding for marvell MDIO driver. Signed-off-by: Ken Ma <make@marvell.com> Signed-off-by: Alex Marginean <alexm.osslist@gmail.com> Acked-by: Joe Hershberger <joe.hershberger@ni.com>
15 lines
517 B
Text
15 lines
517 B
Text
* Marvell MDIO Ethernet Controller interface
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The Ethernet controllers of the Marvel Armada 3700 and Armada 7k/8k
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have an identical unit that provides an interface with the MDIO bus.
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This driver handles this MDIO interface.
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Mandatory properties:
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SoC specific:
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- #address-cells: Must be <1>.
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- #size-cells: Must be <0>.
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- compatible: Should be "marvell,orion-mdio" (for SMI)
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"marvell,xmdio" (for XSMI)
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- reg: Base address and size SMI/XMSI bus.
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Please refer to "mdio.txt" for generic MDIO bus bindings.
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