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Jeff Garzik6aa20a22006-09-13 13:24:59 -04001/*
Andy Flemingbb40dcb2005-09-23 22:54:21 -04002 * 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
Kumar Gala4c8d3d92005-11-13 16:06:30 -08008 * Maintainer: Kumar Gala
Andy Flemingbb40dcb2005-09-23 22:54:21 -04009 *
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
Trent Piephoc1324192008-10-30 18:17:06 -070021struct gfar_private; /* forward ref */
22
Andy Flemingbb40dcb2005-09-23 22:54:21 -040023#define MIIMIND_BUSY 0x00000001
24#define MIIMIND_NOTVALID 0x00000004
25
26#define MII_READ_COMMAND 0x00000001
27
28#define GFAR_SUPPORTED (SUPPORTED_10baseT_Half \
Andy Fleming7f7f5312005-11-11 12:38:59 -060029 | SUPPORTED_10baseT_Full \
Andy Flemingbb40dcb2005-09-23 22:54:21 -040030 | SUPPORTED_100baseT_Half \
31 | SUPPORTED_100baseT_Full \
32 | SUPPORTED_Autoneg \
33 | SUPPORTED_MII)
34
35struct 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
44int gfar_mdio_read(struct mii_bus *bus, int mii_id, int regnum);
45int gfar_mdio_write(struct mii_bus *bus, int mii_id, int regnum, u16 value);
Paul Gortmakerd0313582008-04-17 00:08:10 -040046int gfar_local_mdio_write(struct gfar_mii __iomem *regs, int mii_id,
47 int regnum, u16 value);
48int gfar_local_mdio_read(struct gfar_mii __iomem *regs, int mii_id, int regnum);
Trent Piephoc1324192008-10-30 18:17:06 -070049struct mii_bus *gfar_get_miibus(const struct gfar_private *priv);
Andy Flemingbb40dcb2005-09-23 22:54:21 -040050int __init gfar_mdio_init(void);
Kumar Galab9daf6c2007-07-26 00:52:34 -050051void gfar_mdio_exit(void);
Andy Flemingb31a1d82008-12-16 15:29:15 -080052
53void gfar_mdio_bus_name(char *name, struct device_node *np);
Andy Flemingbb40dcb2005-09-23 22:54:21 -040054#endif /* GIANFAR_PHY_H */