88 lines
		
	
	
		
			2.6 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			88 lines
		
	
	
		
			2.6 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
/*
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 * drivers/net/ibm_newemac/phy.h
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 *
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 * Driver for PowerPC 4xx on-chip ethernet controller, PHY support
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 *
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 * Copyright 2007 Benjamin Herrenschmidt, IBM Corp.
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 *                <benh@kernel.crashing.org>
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 *
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 * Based on the arch/ppc version of the driver:
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 *
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 * Benjamin Herrenschmidt <benh@kernel.crashing.org>
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 * February 2003
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 *
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 * Minor additions by Eugene Surovegin <ebs@ebshome.net>, 2004
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 *
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 * This program is free software; you can redistribute  it and/or modify it
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 * under  the terms of  the GNU General  Public License as published by the
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 * Free Software Foundation;  either version 2 of the  License, or (at your
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 * option) any later version.
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 *
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 * This file basically duplicates sungem_phy.{c,h} with different PHYs
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 * supported. I'm looking into merging that in a single mii layer more
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 * flexible than mii.c
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 */
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#ifndef __IBM_NEWEMAC_PHY_H
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#define __IBM_NEWEMAC_PHY_H
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struct mii_phy;
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/* Operations supported by any kind of PHY */
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struct mii_phy_ops {
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	int (*init) (struct mii_phy * phy);
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	int (*suspend) (struct mii_phy * phy, int wol_options);
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	int (*setup_aneg) (struct mii_phy * phy, u32 advertise);
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	int (*setup_forced) (struct mii_phy * phy, int speed, int fd);
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	int (*poll_link) (struct mii_phy * phy);
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	int (*read_link) (struct mii_phy * phy);
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};
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/* Structure used to statically define an mii/gii based PHY */
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struct mii_phy_def {
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	u32 phy_id;		/* Concatenated ID1 << 16 | ID2 */
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	u32 phy_id_mask;	/* Significant bits */
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	u32 features;		/* Ethtool SUPPORTED_* defines or
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				   0 for autodetect */
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	int magic_aneg;		/* Autoneg does all speed test for us */
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	const char *name;
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	const struct mii_phy_ops *ops;
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};
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/* An instance of a PHY, partially borrowed from mii_if_info */
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struct mii_phy {
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	struct mii_phy_def *def;
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	u32 advertising;	/* Ethtool ADVERTISED_* defines */
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	u32 features;		/* Copied from mii_phy_def.features
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				   or determined automaticaly */
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	int address;		/* PHY address */
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	int mode;		/* PHY mode */
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	int gpcs_address;	/* GPCS PHY address */
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	/* 1: autoneg enabled, 0: disabled */
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	int autoneg;
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	/* forced speed & duplex (no autoneg)
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	 * partner speed & duplex & pause (autoneg)
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	 */
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	int speed;
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	int duplex;
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	int pause;
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	int asym_pause;
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	/* Provided by host chip */
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	struct net_device *dev;
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	int (*mdio_read) (struct net_device * dev, int addr, int reg);
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	void (*mdio_write) (struct net_device * dev, int addr, int reg,
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			    int val);
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};
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/* Pass in a struct mii_phy with dev, mdio_read and mdio_write
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 * filled, the remaining fields will be filled on return
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 */
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int emac_mii_phy_probe(struct mii_phy *phy, int address);
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int emac_mii_reset_phy(struct mii_phy *phy);
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int emac_mii_reset_gpcs(struct mii_phy *phy);
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#endif /* __IBM_NEWEMAC_PHY_H */
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