1/*
2 * drivers/net/ibm_emac/ibm_emac_rgmii.h
3 *
4 * Driver for PowerPC 4xx on-chip ethernet controller, RGMII bridge support.
5 *
6 * Based on ocp_zmii.h/ibm_emac_zmii.h
7 * Armin Kuster akuster@mvista.com
8 *
9 * Copyright 2004 MontaVista Software, Inc.
10 * Matt Porter <mporter@kernel.crashing.org>
11 *
12 * Copyright (c) 2004, 2005 Zultys Technologies.
13 * Eugene Surovegin <eugene.surovegin@zultys.com> or <ebs@ebshome.net>
14 *
15 * This program is free software; you can redistribute  it and/or modify it
16 * under  the terms of  the GNU General  Public License as published by the
17 * Free Software Foundation;  either version 2 of the  License, or (at your
18 * option) any later version.
19 */
20
21#ifndef _IBM_EMAC_RGMII_H_
22#define _IBM_EMAC_RGMII_H_
23
24
25/* RGMII bridge */
26struct rgmii_regs {
27	u32 fer;		/* Function enable register */
28	u32 ssr;		/* Speed select register */
29};
30
31/* RGMII device */
32struct ibm_ocp_rgmii {
33	struct rgmii_regs __iomem *base;
34	int users;		/* number of EMACs using this RGMII bridge */
35};
36
37#ifdef CONFIG_IBM_EMAC_RGMII
38int rgmii_attach(void *emac) __init;
39
40void __rgmii_fini(struct ocp_device *ocpdev, int input);
41static inline void rgmii_fini(struct ocp_device *ocpdev, int input)
42{
43	if (ocpdev)
44		__rgmii_fini(ocpdev, input);
45}
46
47void rgmii_set_speed(struct ocp_device *ocpdev, int input, int speed);
48
49int __rgmii_get_regs_len(struct ocp_device *ocpdev);
50static inline int rgmii_get_regs_len(struct ocp_device *ocpdev)
51{
52	return ocpdev ? __rgmii_get_regs_len(ocpdev) : 0;
53}
54
55void *rgmii_dump_regs(struct ocp_device *ocpdev, void *buf);
56#else
57# define rgmii_attach(x)	0
58# define rgmii_fini(x,y)	((void)0)
59# define rgmii_set_speed(x,y,z)	((void)0)
60# define rgmii_get_regs_len(x)	0
61# define rgmii_dump_regs(x,buf)	(buf)
62#endif				/* !CONFIG_IBM_EMAC_RGMII */
63
64#endif				/* _IBM_EMAC_RGMII_H_ */
65