1/*
2 * Copyright (C) 2004 Olof Johansson <olof@lixom.net>, IBM Corporation
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12 * GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
17 */
18
19#ifndef _POWERPC_SYSDEV_DART_H
20#define _POWERPC_SYSDEV_DART_H
21
22
23/* Offset from base to control register */
24#define DART_CNTL	0
25
26/* Offset from base to exception register */
27#define DART_EXCP_U3	0x10
28/* Offset from base to TLB tag registers */
29#define DART_TAGS_U3	0x1000
30
31/* U4 registers */
32#define DART_BASE_U4	0x10
33#define DART_SIZE_U4	0x20
34#define DART_EXCP_U4	0x30
35#define DART_TAGS_U4	0x1000
36
37/* Control Register fields */
38
39/* U3 registers */
40#define DART_CNTL_U3_BASE_MASK	0xfffff
41#define DART_CNTL_U3_BASE_SHIFT	12
42#define DART_CNTL_U3_FLUSHTLB	0x400
43#define DART_CNTL_U3_ENABLE	0x200
44#define DART_CNTL_U3_SIZE_MASK	0x1ff
45#define DART_CNTL_U3_SIZE_SHIFT	0
46
47/* U4 registers */
48#define DART_BASE_U4_BASE_MASK	0xffffff
49#define DART_BASE_U4_BASE_SHIFT	0
50#define DART_CNTL_U4_ENABLE	0x80000000
51#define DART_CNTL_U4_IONE	0x40000000
52#define DART_CNTL_U4_FLUSHTLB	0x20000000
53#define DART_CNTL_U4_IDLE	0x10000000
54#define DART_CNTL_U4_PAR_EN	0x08000000
55#define DART_CNTL_U4_IONE_MASK	0x07ffffff
56#define DART_SIZE_U4_SIZE_MASK	0x1fff
57#define DART_SIZE_U4_SIZE_SHIFT	0
58
59#define DART_REG(r)	(dart + ((r) >> 2))
60#define DART_IN(r)	(in_be32(DART_REG(r)))
61#define DART_OUT(r,v)	(out_be32(DART_REG(r), (v)))
62
63
64/* size of table in pages */
65
66
67/* DART table fields */
68
69#define DARTMAP_VALID   0x80000000
70#define DARTMAP_RPNMASK 0x00ffffff
71
72
73#define DART_PAGE_SHIFT		12
74#define DART_PAGE_SIZE		(1 << DART_PAGE_SHIFT)
75
76
77#endif /* _POWERPC_SYSDEV_DART_H */
78