drivers/net/fsl_pq_mdio.h

   1 /*
   2  * Freescale PowerQUICC MDIO Driver -- MII Management Bus Implementation
   3  * Driver for the MDIO bus controller on Freescale PowerQUICC processors
   4  *
   5  * Author: Andy Fleming
   6  *
   7  * Copyright (c) 2002-2004,2008 Freescale Semiconductor, Inc.
   8  *
   9  * This program is free software; you can redistribute  it and/or modify it
  10  * under  the terms of  the GNU General  Public License as published by the
  11  * Free Software Foundation;  either version 2 of the  License, or (at your
  12  * option) any later version.
  13  *
  14  */
  15 #ifndef __FSL_PQ_MDIO_H
  16 #define __FSL_PQ_MDIO_H
  17
  18 #define MIIMIND_BUSY            0x00000001
  19 #define MIIMIND_NOTVALID        0x00000004
  20 #define MIIMCFG_INIT_VALUE      0x00000007
  21 #define MIIMCFG_RESET           0x80000000
  22
  23 #define MII_READ_COMMAND       0x00000001
  24
  25 struct fsl_pq_mdio {
  26         u32 miimcfg;            /* MII management configuration reg */
  27         u32 miimcom;            /* MII management command reg */
  28         u32 miimadd;            /* MII management address reg */
  29         u32 miimcon;            /* MII management control reg */
  30         u32 miimstat;           /* MII management status reg */
  31         u32 miimind;            /* MII management indication reg */
  32         u8 reserved[28];        /* Space holder */
  33         u32 utbipar;            /* TBI phy address reg (only on UCC) */
  34 } __attribute__ ((packed));
  35
  36
  37 int fsl_pq_mdio_read(struct mii_bus *bus, int mii_id, int regnum);
  38 int fsl_pq_mdio_write(struct mii_bus *bus, int mii_id, int regnum, u16 value);
  39 int fsl_pq_local_mdio_write(struct fsl_pq_mdio __iomem *regs, int mii_id,
  40                           int regnum, u16 value);
  41 int fsl_pq_local_mdio_read(struct fsl_pq_mdio __iomem *regs, int mii_id, int regnum);
  42 int __init fsl_pq_mdio_init(void);
  43 void fsl_pq_mdio_exit(void);
  44 void fsl_pq_mdio_bus_name(char *name, struct device_node *np);
  45 #endif /* FSL_PQ_MDIO_H */