214 lines
6.4 KiB
C
214 lines
6.4 KiB
C
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/*
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* drivers/net/gianfar_phy.h
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*
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* Gianfar Ethernet Driver -- PHY handling
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* Driver for FEC on MPC8540 and TSEC on MPC8540/MPC8560
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* Based on 8260_io/fcc_enet.c
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*
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* Author: Andy Fleming
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* Maintainer: Kumar Gala (kumar.gala@freescale.com)
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*
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* Copyright (c) 2002-2004 Freescale Semiconductor, Inc.
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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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*/
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#ifndef __GIANFAR_PHY_H
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#define __GIANFAR_PHY_H
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#define MII_end ((u32)-2)
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#define MII_read ((u32)-1)
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#define MIIMIND_BUSY 0x00000001
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#define MIIMIND_NOTVALID 0x00000004
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#define GFAR_AN_TIMEOUT 2000
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/* 1000BT control (Marvell & BCM54xx at least) */
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#define MII_1000BASETCONTROL 0x09
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#define MII_1000BASETCONTROL_FULLDUPLEXCAP 0x0200
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#define MII_1000BASETCONTROL_HALFDUPLEXCAP 0x0100
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/* Cicada Extended Control Register 1 */
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#define MII_CIS8201_EXT_CON1 0x17
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#define MII_CIS8201_EXTCON1_INIT 0x0000
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/* Cicada Interrupt Mask Register */
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#define MII_CIS8201_IMASK 0x19
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#define MII_CIS8201_IMASK_IEN 0x8000
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#define MII_CIS8201_IMASK_SPEED 0x4000
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#define MII_CIS8201_IMASK_LINK 0x2000
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#define MII_CIS8201_IMASK_DUPLEX 0x1000
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#define MII_CIS8201_IMASK_MASK 0xf000
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/* Cicada Interrupt Status Register */
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#define MII_CIS8201_ISTAT 0x1a
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#define MII_CIS8201_ISTAT_STATUS 0x8000
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#define MII_CIS8201_ISTAT_SPEED 0x4000
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#define MII_CIS8201_ISTAT_LINK 0x2000
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#define MII_CIS8201_ISTAT_DUPLEX 0x1000
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/* Cicada Auxiliary Control/Status Register */
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#define MII_CIS8201_AUX_CONSTAT 0x1c
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#define MII_CIS8201_AUXCONSTAT_INIT 0x0004
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#define MII_CIS8201_AUXCONSTAT_DUPLEX 0x0020
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#define MII_CIS8201_AUXCONSTAT_SPEED 0x0018
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#define MII_CIS8201_AUXCONSTAT_GBIT 0x0010
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#define MII_CIS8201_AUXCONSTAT_100 0x0008
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/* 88E1011 PHY Status Register */
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#define MII_M1011_PHY_SPEC_STATUS 0x11
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#define MII_M1011_PHY_SPEC_STATUS_1000 0x8000
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#define MII_M1011_PHY_SPEC_STATUS_100 0x4000
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#define MII_M1011_PHY_SPEC_STATUS_SPD_MASK 0xc000
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#define MII_M1011_PHY_SPEC_STATUS_FULLDUPLEX 0x2000
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#define MII_M1011_PHY_SPEC_STATUS_RESOLVED 0x0800
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#define MII_M1011_PHY_SPEC_STATUS_LINK 0x0400
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#define MII_M1011_IEVENT 0x13
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#define MII_M1011_IEVENT_CLEAR 0x0000
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#define MII_M1011_IMASK 0x12
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#define MII_M1011_IMASK_INIT 0x6400
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#define MII_M1011_IMASK_CLEAR 0x0000
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#define MII_DM9161_SCR 0x10
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#define MII_DM9161_SCR_INIT 0x0610
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/* DM9161 Specified Configuration and Status Register */
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#define MII_DM9161_SCSR 0x11
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#define MII_DM9161_SCSR_100F 0x8000
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#define MII_DM9161_SCSR_100H 0x4000
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#define MII_DM9161_SCSR_10F 0x2000
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#define MII_DM9161_SCSR_10H 0x1000
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/* DM9161 Interrupt Register */
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#define MII_DM9161_INTR 0x15
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#define MII_DM9161_INTR_PEND 0x8000
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#define MII_DM9161_INTR_DPLX_MASK 0x0800
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#define MII_DM9161_INTR_SPD_MASK 0x0400
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#define MII_DM9161_INTR_LINK_MASK 0x0200
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#define MII_DM9161_INTR_MASK 0x0100
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#define MII_DM9161_INTR_DPLX_CHANGE 0x0010
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#define MII_DM9161_INTR_SPD_CHANGE 0x0008
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#define MII_DM9161_INTR_LINK_CHANGE 0x0004
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#define MII_DM9161_INTR_INIT 0x0000
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#define MII_DM9161_INTR_STOP \
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(MII_DM9161_INTR_DPLX_MASK | MII_DM9161_INTR_SPD_MASK \
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| MII_DM9161_INTR_LINK_MASK | MII_DM9161_INTR_MASK)
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/* DM9161 10BT Configuration/Status */
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#define MII_DM9161_10BTCSR 0x12
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#define MII_DM9161_10BTCSR_INIT 0x7800
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#define MII_BASIC_FEATURES (SUPPORTED_10baseT_Half | \
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SUPPORTED_10baseT_Full | \
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SUPPORTED_100baseT_Half | \
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SUPPORTED_100baseT_Full | \
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SUPPORTED_Autoneg | \
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SUPPORTED_TP | \
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SUPPORTED_MII)
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#define MII_GBIT_FEATURES (MII_BASIC_FEATURES | \
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SUPPORTED_1000baseT_Half | \
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SUPPORTED_1000baseT_Full)
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#define MII_READ_COMMAND 0x00000001
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#define MII_INTERRUPT_DISABLED 0x0
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#define MII_INTERRUPT_ENABLED 0x1
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/* Taken from mii_if_info and sungem_phy.h */
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struct gfar_mii_info {
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/* Information about the PHY type */
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/* And management functions */
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struct phy_info *phyinfo;
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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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/* The most recently read link state */
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int link;
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/* Enabled Interrupts */
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u32 interrupts;
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u32 advertising;
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int autoneg;
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int mii_id;
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/* private data pointer */
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/* For use by PHYs to maintain extra state */
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void *priv;
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/* Provided by host chip */
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struct net_device *dev;
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/* A lock to ensure that only one thing can read/write
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* the MDIO bus at a time */
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spinlock_t mdio_lock;
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/* Provided by ethernet driver */
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int (*mdio_read) (struct net_device *dev, int mii_id, int reg);
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void (*mdio_write) (struct net_device *dev, int mii_id, int reg, int val);
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};
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/* struct phy_info: a structure which defines attributes for a PHY
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*
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* id will contain a number which represents the PHY. During
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* startup, the driver will poll the PHY to find out what its
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* UID--as defined by registers 2 and 3--is. The 32-bit result
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* gotten from the PHY will be ANDed with phy_id_mask to
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* discard any bits which may change based on revision numbers
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* unimportant to functionality
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*
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* There are 6 commands which take a gfar_mii_info structure.
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* Each PHY must declare config_aneg, and read_status.
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*/
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struct phy_info {
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u32 phy_id;
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char *name;
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unsigned int phy_id_mask;
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u32 features;
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/* Called to initialize the PHY */
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int (*init)(struct gfar_mii_info *mii_info);
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/* Called to suspend the PHY for power */
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int (*suspend)(struct gfar_mii_info *mii_info);
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/* Reconfigures autonegotiation (or disables it) */
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int (*config_aneg)(struct gfar_mii_info *mii_info);
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/* Determines the negotiated speed and duplex */
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int (*read_status)(struct gfar_mii_info *mii_info);
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/* Clears any pending interrupts */
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int (*ack_interrupt)(struct gfar_mii_info *mii_info);
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/* Enables or disables interrupts */
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int (*config_intr)(struct gfar_mii_info *mii_info);
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/* Clears up any memory if needed */
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void (*close)(struct gfar_mii_info *mii_info);
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};
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struct phy_info *get_phy_info(struct gfar_mii_info *mii_info);
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int read_phy_reg(struct net_device *dev, int mii_id, int regnum);
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void write_phy_reg(struct net_device *dev, int mii_id, int regnum, int value);
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void mii_clear_phy_interrupt(struct gfar_mii_info *mii_info);
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void mii_configure_phy_interrupt(struct gfar_mii_info *mii_info, u32 interrupts);
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struct dm9161_private {
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struct timer_list timer;
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int resetdone;
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};
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#endif /* GIANFAR_PHY_H */
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