Gitiles
Code Review Sign In
gerrit-public.fairphone.software / kernel / msm / 97cb7e40c69618ba03030b467faf60dc3ee982ee / . / drivers / net / ibm_newemac / tah.h
blob: 61dbeca006d14707f0f66f7e37f4975f6b4eeabf [file] [log] [blame]
David Gibson1d3bb992007-08-23 13:56:01 +1000[diff] [blame]1/*
2 * drivers/net/ibm_newemac/tah.h
3 *
4 * Driver for PowerPC 4xx on-chip ethernet controller, TAH support.
5 *
Benjamin Herrenschmidt17cf8032007-12-05 11:14:33 +1100[diff] [blame]6 * Copyright 2007 Benjamin Herrenschmidt, IBM Corp.
7 * <benh@kernel.crashing.org>
8 *
9 * Based on the arch/ppc version of the driver:
10 *
David Gibson1d3bb992007-08-23 13:56:01 +1000[diff] [blame]11 * Copyright 2004 MontaVista Software, Inc.
12 * Matt Porter <mporter@kernel.crashing.org>
13 *
14 * Copyright (c) 2005 Eugene Surovegin <ebs@ebshome.net>
15 *
16 * This program is free software; you can redistribute it and/or modify it
17 * under the terms of the GNU General Public License as published by the
18 * Free Software Foundation; either version 2 of the License, or (at your
19 * option) any later version.
20 */
21
22#ifndef __IBM_NEWEMAC_TAH_H
23#define __IBM_NEWEMAC_TAH_H
24
25/* TAH */
26struct tah_regs {
27 u32 revid;
28 u32 pad[3];
29 u32 mr;
30 u32 ssr0;
31 u32 ssr1;
32 u32 ssr2;
33 u32 ssr3;
34 u32 ssr4;
35 u32 ssr5;
36 u32 tsr;
37};
38
39
40/* TAH device */
41struct tah_instance {
42 struct tah_regs __iomem *base;
43
44 /* Only one EMAC whacks us at a time */
45 struct mutex lock;
46
47 /* number of EMACs using this TAH */
48 int users;
49
50 /* OF device instance */
Grant Likely2dc11582010-08-06 09:25:50 -0600[diff] [blame]51 struct platform_device *ofdev;
David Gibson1d3bb992007-08-23 13:56:01 +1000[diff] [blame]52};
53
54
55/* TAH engine */
56#define TAH_MR_CVR 0x80000000
57#define TAH_MR_SR 0x40000000
58#define TAH_MR_ST_256 0x01000000
59#define TAH_MR_ST_512 0x02000000
60#define TAH_MR_ST_768 0x03000000
61#define TAH_MR_ST_1024 0x04000000
62#define TAH_MR_ST_1280 0x05000000
63#define TAH_MR_ST_1536 0x06000000
64#define TAH_MR_TFS_16KB 0x00000000
65#define TAH_MR_TFS_2KB 0x00200000
66#define TAH_MR_TFS_4KB 0x00400000
67#define TAH_MR_TFS_6KB 0x00600000
68#define TAH_MR_TFS_8KB 0x00800000
69#define TAH_MR_TFS_10KB 0x00a00000
70#define TAH_MR_DTFP 0x00100000
71#define TAH_MR_DIG 0x00080000
72
73#ifdef CONFIG_IBM_NEW_EMAC_TAH
74
75extern int tah_init(void);
76extern void tah_exit(void);
Grant Likely2dc11582010-08-06 09:25:50 -0600[diff] [blame]77extern int tah_attach(struct platform_device *ofdev, int channel);
78extern void tah_detach(struct platform_device *ofdev, int channel);
79extern void tah_reset(struct platform_device *ofdev);
80extern int tah_get_regs_len(struct platform_device *ofdev);
81extern void *tah_dump_regs(struct platform_device *ofdev, void *buf);
David Gibson1d3bb992007-08-23 13:56:01 +1000[diff] [blame]82
83#else
84
85# define tah_init() 0
86# define tah_exit() do { } while(0)
87# define tah_attach(x,y) (-ENXIO)
88# define tah_detach(x,y) do { } while(0)
89# define tah_reset(x) do { } while(0)
90# define tah_get_regs_len(x) 0
91# define tah_dump_regs(x,buf) (buf)
92
93#endif /* !CONFIG_IBM_NEW_EMAC_TAH */
94
95#endif /* __IBM_NEWEMAC_TAH_H */