2 * drivers/net/ethernet/ibm/emac/zmii.h
4 * Driver for PowerPC 4xx on-chip ethernet controller, ZMII bridge support.
6 * Copyright 2007 Benjamin Herrenschmidt, IBM Corp.
7 * <benh@kernel.crashing.org>
9 * Based on the arch/ppc version of the driver:
11 * Copyright (c) 2004, 2005 Zultys Technologies.
12 * Eugene Surovegin <eugene.surovegin@zultys.com> or <ebs@ebshome.net>
14 * Based on original work by
15 * Armin Kuster <akuster@mvista.com>
16 * Copyright 2001 MontaVista Softare Inc.
18 * This program is free software; you can redistribute it and/or modify it
19 * under the terms of the GNU General Public License as published by the
20 * Free Software Foundation; either version 2 of the License, or (at your
21 * option) any later version.
24 #ifndef __IBM_NEWEMAC_ZMII_H
25 #define __IBM_NEWEMAC_ZMII_H
27 /* ZMII bridge registers */
29 u32 fer
; /* Function enable reg */
30 u32 ssr
; /* Speed select reg */
31 u32 smiirs
; /* SMII status reg */
35 struct zmii_instance
{
36 struct zmii_regs __iomem
*base
;
38 /* Only one EMAC whacks us at a time */
41 /* subset of PHY_MODE_XXXX */
44 /* number of EMACs using this ZMII bridge */
47 /* FER value left by firmware */
50 /* OF device instance */
51 struct platform_device
*ofdev
;
54 #ifdef CONFIG_IBM_EMAC_ZMII
56 extern int zmii_init(void);
57 extern void zmii_exit(void);
58 extern int zmii_attach(struct platform_device
*ofdev
, int input
, int *mode
);
59 extern void zmii_detach(struct platform_device
*ofdev
, int input
);
60 extern void zmii_get_mdio(struct platform_device
*ofdev
, int input
);
61 extern void zmii_put_mdio(struct platform_device
*ofdev
, int input
);
62 extern void zmii_set_speed(struct platform_device
*ofdev
, int input
, int speed
);
63 extern int zmii_get_regs_len(struct platform_device
*ocpdev
);
64 extern void *zmii_dump_regs(struct platform_device
*ofdev
, void *buf
);
67 # define zmii_init() 0
68 # define zmii_exit() do { } while(0)
69 # define zmii_attach(x,y,z) (-ENXIO)
70 # define zmii_detach(x,y) do { } while(0)
71 # define zmii_get_mdio(x,y) do { } while(0)
72 # define zmii_put_mdio(x,y) do { } while(0)
73 # define zmii_set_speed(x,y,z) do { } while(0)
74 # define zmii_get_regs_len(x) 0
75 # define zmii_dump_regs(x,buf) (buf)
76 #endif /* !CONFIG_IBM_EMAC_ZMII */
78 #endif /* __IBM_NEWEMAC_ZMII_H */