2 * drivers/net/ibm_newemac/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_NEWEMAC_ZMII_H
20 #define __IBM_NEWEMAC_ZMII_H
22 /* ZMII bridge registers */
24 u32 fer; /* Function enable reg */
25 u32 ssr; /* Speed select reg */
26 u32 smiirs; /* SMII status reg */
30 struct zmii_instance {
31 struct zmii_regs __iomem *base;
33 /* Only one EMAC whacks us at a time */
36 /* subset of PHY_MODE_XXXX */
39 /* number of EMACs using this ZMII bridge */
42 /* FER value left by firmware */
45 /* OF device instance */
46 struct of_device *ofdev;
49 #ifdef CONFIG_IBM_NEW_EMAC_ZMII
51 extern int zmii_init(void);
52 extern void zmii_exit(void);
53 extern int zmii_attach(struct of_device *ofdev, int input, int *mode);
54 extern void zmii_detach(struct of_device *ofdev, int input);
55 extern void zmii_get_mdio(struct of_device *ofdev, int input);
56 extern void zmii_put_mdio(struct of_device *ofdev, int input);
57 extern void zmii_set_speed(struct of_device *ofdev, int input, int speed);
58 extern int zmii_get_regs_len(struct of_device *ocpdev);
59 extern void *zmii_dump_regs(struct of_device *ofdev, void *buf);
62 # define zmii_init() 0
63 # define zmii_exit() do { } while(0)
64 # define zmii_attach(x,y,z) (-ENXIO)
65 # define zmii_detach(x,y) do { } while(0)
66 # define zmii_get_mdio(x,y) do { } while(0)
67 # define zmii_put_mdio(x,y) do { } while(0)
68 # define zmii_set_speed(x,y,z) do { } while(0)
69 # define zmii_get_regs_len(x) 0
70 # define zmii_dump_regs(x,buf) (buf)
71 #endif /* !CONFIG_IBM_NEW_EMAC_ZMII */
73 #endif /* __IBM_NEWEMAC_ZMII_H */