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1 | /* |
2 | * drivers/net/ibm_newemac/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_NEWEMAC_RGMII_H | |
22 | #define __IBM_NEWEMAC_RGMII_H | |
23 | ||
24 | /* RGMII bridge type */ | |
25 | #define RGMII_STANDARD 0 | |
26 | #define RGMII_AXON 1 | |
27 | ||
28 | /* RGMII bridge */ | |
29 | struct rgmii_regs { | |
30 | u32 fer; /* Function enable register */ | |
31 | u32 ssr; /* Speed select register */ | |
32 | }; | |
33 | ||
34 | /* RGMII device */ | |
35 | struct rgmii_instance { | |
36 | struct rgmii_regs __iomem *base; | |
37 | ||
38 | /* Type of RGMII bridge */ | |
39 | int type; | |
40 | ||
41 | /* Only one EMAC whacks us at a time */ | |
42 | struct mutex lock; | |
43 | ||
44 | /* number of EMACs using this RGMII bridge */ | |
45 | int users; | |
46 | ||
47 | /* OF device instance */ | |
48 | struct of_device *ofdev; | |
49 | }; | |
50 | ||
51 | #ifdef CONFIG_IBM_NEW_EMAC_RGMII | |
52 | ||
53 | extern int rgmii_init(void); | |
54 | extern void rgmii_exit(void); | |
55 | extern int rgmii_attach(struct of_device *ofdev, int input, int mode); | |
56 | extern void rgmii_detach(struct of_device *ofdev, int input); | |
57 | extern void rgmii_get_mdio(struct of_device *ofdev, int input); | |
58 | extern void rgmii_put_mdio(struct of_device *ofdev, int input); | |
59 | extern void rgmii_set_speed(struct of_device *ofdev, int input, int speed); | |
60 | extern int rgmii_get_regs_len(struct of_device *ofdev); | |
61 | extern void *rgmii_dump_regs(struct of_device *ofdev, void *buf); | |
62 | ||
63 | #else | |
64 | ||
65 | # define rgmii_init() 0 | |
66 | # define rgmii_exit() do { } while(0) | |
67 | # define rgmii_attach(x,y,z) (-ENXIO) | |
68 | # define rgmii_detach(x,y) do { } while(0) | |
69 | # define rgmii_get_mdio(o,i) do { } while (0) | |
70 | # define rgmii_put_mdio(o,i) do { } while (0) | |
71 | # define rgmii_set_speed(x,y,z) do { } while(0) | |
72 | # define rgmii_get_regs_len(x) 0 | |
73 | # define rgmii_dump_regs(x,buf) (buf) | |
74 | #endif /* !CONFIG_IBM_NEW_EMAC_RGMII */ | |
75 | ||
76 | #endif /* __IBM_NEWEMAC_RGMII_H */ |