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[RFC] Patch to Abstract Ethernet PHY support (using driver model)

To: Netdev <netdev@xxxxxxxxxxx>
Subject: [RFC] Patch to Abstract Ethernet PHY support (using driver model)
From: Andy Fleming <afleming@xxxxxxxxxxxxx>
Date: Thu, 23 Dec 2004 13:01:00 -0600
Cc: Kumar Gala <kumar.gala@xxxxxxxxxxxxx>, Embedded PPC Linux list <linuxppc-embedded@xxxxxxxxxx>
Sender: netdev-bounce@xxxxxxxxxxx
Adds a Phy Abstraction Layer which allows ethernet controllers to manage their PHYs without knowing the details of how the particular PHY device operates. This code steals heavily from BenH's sungem driver, and got some stuff out of Jason McMullan's patch.

Primary features of the code:
* Allows drivers to only use what they want (to a degree). If you want to handle it all yourself, but use some of the data structures and functions, that's ok. If you want to handle your own interrupts, that's fine. However, it also allows you to minimize PHY management code. See the gianfar driver patches (included for reference).
* Integrates with current ethtool/mii defined fields.
* Uses the driver model to manage binding PHY drivers to PHY devices, and MDIO bus drivers to MDIO bus devices.
* Doesn't affect drivers which don't use it.

Here's the patch:

Attachment: phy_12232004.patch
Description: Binary data


Andy Fleming
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