drivers/net/gianfar_mii.h

   1 /*
   2  * drivers/net/gianfar_mii.h
   3  *
   4  * Gianfar Ethernet Driver -- MII Management Bus Implementation
   5  * Driver for the MDIO bus controller in the Gianfar register space
   6  *
   7  * Author: Andy Fleming
   8  * Maintainer: Kumar Gala
   9  *
  10  * Copyright (c) 2002-2004 Freescale Semiconductor, Inc.
  11  *
  12  * This program is free software; you can redistribute  it and/or modify it
  13  * under  the terms of  the GNU General  Public License as published by the
  14  * Free Software Foundation;  either version 2 of the  License, or (at your
  15  * option) any later version.
  16  *
  17  */
  18 #ifndef __GIANFAR_MII_H
  19 #define __GIANFAR_MII_H
  20
  21 struct gfar_private; /* forward ref */
  22
  23 #define MIIMIND_BUSY            0x00000001
  24 #define MIIMIND_NOTVALID        0x00000004
  25
  26 #define MII_READ_COMMAND       0x00000001
  27
  28 #define GFAR_SUPPORTED (SUPPORTED_10baseT_Half \
  29                 | SUPPORTED_10baseT_Full \
  30                 | SUPPORTED_100baseT_Half \
  31                 | SUPPORTED_100baseT_Full \
  32                 | SUPPORTED_Autoneg \
  33                 | SUPPORTED_MII)
  34
  35 struct gfar_mii {
  36         u32     miimcfg;        /* 0x.520 - MII Management Config Register */
  37         u32     miimcom;        /* 0x.524 - MII Management Command Register */
  38         u32     miimadd;        /* 0x.528 - MII Management Address Register */
  39         u32     miimcon;        /* 0x.52c - MII Management Control Register */
  40         u32     miimstat;       /* 0x.530 - MII Management Status Register */
  41         u32     miimind;        /* 0x.534 - MII Management Indicator Register */
  42 };
  43
  44 int gfar_mdio_read(struct mii_bus *bus, int mii_id, int regnum);
  45 int gfar_mdio_write(struct mii_bus *bus, int mii_id, int regnum, u16 value);
  46 int gfar_local_mdio_write(struct gfar_mii __iomem *regs, int mii_id,
  47                           int regnum, u16 value);
  48 int gfar_local_mdio_read(struct gfar_mii __iomem *regs, int mii_id, int regnum);
  49 struct mii_bus *gfar_get_miibus(const struct gfar_private *priv);
  50 int __init gfar_mdio_init(void);
  51 void gfar_mdio_exit(void);
  52
  53 void gfar_mdio_bus_name(char *name, struct device_node *np);
  54 #endif /* GIANFAR_PHY_H */