xref: /openbmc/linux/drivers/net/ethernet/ibm/emac/phy.h (revision 9aa32835)
19aa32835SJeff Kirsher /*
29aa32835SJeff Kirsher  * drivers/net/ibm_newemac/phy.h
39aa32835SJeff Kirsher  *
49aa32835SJeff Kirsher  * Driver for PowerPC 4xx on-chip ethernet controller, PHY support
59aa32835SJeff Kirsher  *
69aa32835SJeff Kirsher  * Copyright 2007 Benjamin Herrenschmidt, IBM Corp.
79aa32835SJeff Kirsher  *                <benh@kernel.crashing.org>
89aa32835SJeff Kirsher  *
99aa32835SJeff Kirsher  * Based on the arch/ppc version of the driver:
109aa32835SJeff Kirsher  *
119aa32835SJeff Kirsher  * Benjamin Herrenschmidt <benh@kernel.crashing.org>
129aa32835SJeff Kirsher  * February 2003
139aa32835SJeff Kirsher  *
149aa32835SJeff Kirsher  * Minor additions by Eugene Surovegin <ebs@ebshome.net>, 2004
159aa32835SJeff Kirsher  *
169aa32835SJeff Kirsher  * This program is free software; you can redistribute  it and/or modify it
179aa32835SJeff Kirsher  * under  the terms of  the GNU General  Public License as published by the
189aa32835SJeff Kirsher  * Free Software Foundation;  either version 2 of the  License, or (at your
199aa32835SJeff Kirsher  * option) any later version.
209aa32835SJeff Kirsher  *
219aa32835SJeff Kirsher  * This file basically duplicates sungem_phy.{c,h} with different PHYs
229aa32835SJeff Kirsher  * supported. I'm looking into merging that in a single mii layer more
239aa32835SJeff Kirsher  * flexible than mii.c
249aa32835SJeff Kirsher  */
259aa32835SJeff Kirsher 
269aa32835SJeff Kirsher #ifndef __IBM_NEWEMAC_PHY_H
279aa32835SJeff Kirsher #define __IBM_NEWEMAC_PHY_H
289aa32835SJeff Kirsher 
299aa32835SJeff Kirsher struct mii_phy;
309aa32835SJeff Kirsher 
319aa32835SJeff Kirsher /* Operations supported by any kind of PHY */
329aa32835SJeff Kirsher struct mii_phy_ops {
339aa32835SJeff Kirsher 	int (*init) (struct mii_phy * phy);
349aa32835SJeff Kirsher 	int (*suspend) (struct mii_phy * phy, int wol_options);
359aa32835SJeff Kirsher 	int (*setup_aneg) (struct mii_phy * phy, u32 advertise);
369aa32835SJeff Kirsher 	int (*setup_forced) (struct mii_phy * phy, int speed, int fd);
379aa32835SJeff Kirsher 	int (*poll_link) (struct mii_phy * phy);
389aa32835SJeff Kirsher 	int (*read_link) (struct mii_phy * phy);
399aa32835SJeff Kirsher };
409aa32835SJeff Kirsher 
419aa32835SJeff Kirsher /* Structure used to statically define an mii/gii based PHY */
429aa32835SJeff Kirsher struct mii_phy_def {
439aa32835SJeff Kirsher 	u32 phy_id;		/* Concatenated ID1 << 16 | ID2 */
449aa32835SJeff Kirsher 	u32 phy_id_mask;	/* Significant bits */
459aa32835SJeff Kirsher 	u32 features;		/* Ethtool SUPPORTED_* defines or
469aa32835SJeff Kirsher 				   0 for autodetect */
479aa32835SJeff Kirsher 	int magic_aneg;		/* Autoneg does all speed test for us */
489aa32835SJeff Kirsher 	const char *name;
499aa32835SJeff Kirsher 	const struct mii_phy_ops *ops;
509aa32835SJeff Kirsher };
519aa32835SJeff Kirsher 
529aa32835SJeff Kirsher /* An instance of a PHY, partially borrowed from mii_if_info */
539aa32835SJeff Kirsher struct mii_phy {
549aa32835SJeff Kirsher 	struct mii_phy_def *def;
559aa32835SJeff Kirsher 	u32 advertising;	/* Ethtool ADVERTISED_* defines */
569aa32835SJeff Kirsher 	u32 features;		/* Copied from mii_phy_def.features
579aa32835SJeff Kirsher 				   or determined automaticaly */
589aa32835SJeff Kirsher 	int address;		/* PHY address */
599aa32835SJeff Kirsher 	int mode;		/* PHY mode */
609aa32835SJeff Kirsher 	int gpcs_address;	/* GPCS PHY address */
619aa32835SJeff Kirsher 
629aa32835SJeff Kirsher 	/* 1: autoneg enabled, 0: disabled */
639aa32835SJeff Kirsher 	int autoneg;
649aa32835SJeff Kirsher 
659aa32835SJeff Kirsher 	/* forced speed & duplex (no autoneg)
669aa32835SJeff Kirsher 	 * partner speed & duplex & pause (autoneg)
679aa32835SJeff Kirsher 	 */
689aa32835SJeff Kirsher 	int speed;
699aa32835SJeff Kirsher 	int duplex;
709aa32835SJeff Kirsher 	int pause;
719aa32835SJeff Kirsher 	int asym_pause;
729aa32835SJeff Kirsher 
739aa32835SJeff Kirsher 	/* Provided by host chip */
749aa32835SJeff Kirsher 	struct net_device *dev;
759aa32835SJeff Kirsher 	int (*mdio_read) (struct net_device * dev, int addr, int reg);
769aa32835SJeff Kirsher 	void (*mdio_write) (struct net_device * dev, int addr, int reg,
779aa32835SJeff Kirsher 			    int val);
789aa32835SJeff Kirsher };
799aa32835SJeff Kirsher 
809aa32835SJeff Kirsher /* Pass in a struct mii_phy with dev, mdio_read and mdio_write
819aa32835SJeff Kirsher  * filled, the remaining fields will be filled on return
829aa32835SJeff Kirsher  */
839aa32835SJeff Kirsher int emac_mii_phy_probe(struct mii_phy *phy, int address);
849aa32835SJeff Kirsher int emac_mii_reset_phy(struct mii_phy *phy);
859aa32835SJeff Kirsher int emac_mii_reset_gpcs(struct mii_phy *phy);
869aa32835SJeff Kirsher 
879aa32835SJeff Kirsher #endif /* __IBM_NEWEMAC_PHY_H */
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