drivers/net/ethernet/freescale/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  * Modifier: Sandeep Gopalpet
   7  *
   8  * Copyright 2002-2004, 2008-2009 Freescale Semiconductor, Inc.
   9  *
  10  * This program is free software; you can redistribute  it and/or modify it
  11  * under  the terms of  the GNU General  Public License as published by the
  12  * Free Software Foundation;  either version 2 of the  License, or (at your
  13  * option) any later version.
  14  *
  15  */
  16 #ifndef __FSL_PQ_MDIO_H
  17 #define __FSL_PQ_MDIO_H
  18
  19 #define MIIMIND_BUSY            0x00000001
  20 #define MIIMIND_NOTVALID        0x00000004
  21 #define MIIMCFG_INIT_VALUE      0x00000007
  22 #define MIIMCFG_RESET           0x80000000
  23
  24 #define MII_READ_COMMAND       0x00000001
  25
  26 struct fsl_pq_mdio {
  27         u8 res1[16];
  28         u32 ieventm;    /* MDIO Interrupt event register (for etsec2)*/
  29         u32 imaskm;     /* MDIO Interrupt mask register (for etsec2)*/
  30         u8 res2[4];
  31         u32 emapm;      /* MDIO Event mapping register (for etsec2)*/
  32         u8 res3[1280];
  33         u32 miimcfg;            /* MII management configuration reg */
  34         u32 miimcom;            /* MII management command reg */
  35         u32 miimadd;            /* MII management address reg */
  36         u32 miimcon;            /* MII management control reg */
  37         u32 miimstat;           /* MII management status reg */
  38         u32 miimind;            /* MII management indication reg */
  39         u8 reserved[28];        /* Space holder */
  40         u32 utbipar;            /* TBI phy address reg (only on UCC) */
  41         u8 res4[2728];
  42 } __packed;
  43
  44 int fsl_pq_mdio_read(struct mii_bus *bus, int mii_id, int regnum);
  45 int fsl_pq_mdio_write(struct mii_bus *bus, int mii_id, int regnum, u16 value);
  46 int fsl_pq_local_mdio_write(struct fsl_pq_mdio __iomem *regs, int mii_id,
  47                           int regnum, u16 value);
  48 int fsl_pq_local_mdio_read(struct fsl_pq_mdio __iomem *regs, int mii_id, int regnum);
  49 int __init fsl_pq_mdio_init(void);
  50 void fsl_pq_mdio_exit(void);
  51 void fsl_pq_mdio_bus_name(char *name, struct device_node *np);
  52 #endif /* FSL_PQ_MDIO_H */