2 * drivers/net/ibm_emac/ibm_emac_zmii.h
4 * Driver for PowerPC 4xx on-chip ethernet controller, ZMII bridge support.
6 * Copyright (c) 2004, 2005 Zultys Technologies.
7 * Eugene Surovegin <eugene.surovegin@zultys.com> or <ebs@ebshome.net>
9 * Based on original work by
10 * Armin Kuster <akuster@mvista.com>
11 * Copyright 2001 MontaVista Softare Inc.
13 * This program is free software; you can redistribute it and/or modify it
14 * under the terms of the GNU General Public License as published by the
15 * Free Software Foundation; either version 2 of the License, or (at your
16 * option) any later version.
19 #ifndef _IBM_EMAC_ZMII_H_
20 #define _IBM_EMAC_ZMII_H_
22 #include <linux/init.h>
25 /* ZMII bridge registers */
27 u32 fer; /* Function enable reg */
28 u32 ssr; /* Speed select reg */
29 u32 smiirs; /* SMII status reg */
34 struct zmii_regs __iomem *base;
35 int mode; /* subset of PHY_MODE_XXXX */
36 int users; /* number of EMACs using this ZMII bridge */
37 u32 fer_save; /* FER value left by firmware */
40 #ifdef CONFIG_IBM_EMAC_ZMII
41 int zmii_attach(void *emac) __init;
43 void __zmii_fini(struct ocp_device *ocpdev, int input) __exit;
44 static inline void zmii_fini(struct ocp_device *ocpdev, int input)
47 __zmii_fini(ocpdev, input);
50 void __zmii_enable_mdio(struct ocp_device *ocpdev, int input);
51 static inline void zmii_enable_mdio(struct ocp_device *ocpdev, int input)
54 __zmii_enable_mdio(ocpdev, input);
57 void __zmii_set_speed(struct ocp_device *ocpdev, int input, int speed);
58 static inline void zmii_set_speed(struct ocp_device *ocpdev, int input,
62 __zmii_set_speed(ocpdev, input, speed);
65 int __zmii_get_regs_len(struct ocp_device *ocpdev);
66 static inline int zmii_get_regs_len(struct ocp_device *ocpdev)
68 return ocpdev ? __zmii_get_regs_len(ocpdev) : 0;
71 void *zmii_dump_regs(struct ocp_device *ocpdev, void *buf);
74 # define zmii_attach(x) 0
75 # define zmii_fini(x,y) ((void)0)
76 # define zmii_enable_mdio(x,y) ((void)0)
77 # define zmii_set_speed(x,y,z) ((void)0)
78 # define zmii_get_regs_len(x) 0
79 # define zmii_dump_regs(x,buf) (buf)
80 #endif /* !CONFIG_IBM_EMAC_ZMII */
82 #endif /* _IBM_EMAC_ZMII_H_ */