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64 lines · 1.5 KiB

1/* SPDX-License-Identifier: GPL-2.0-or-later */
2/*
3 * Copyright (C) 2004 Olof Johansson <[email protected]>, IBM Corporation
4 */
5
6#ifndef _POWERPC_SYSDEV_DART_H
7#define _POWERPC_SYSDEV_DART_H
8
9
10/* Offset from base to control register */
11#define DART_CNTL 0
12
13/* Offset from base to exception register */
14#define DART_EXCP_U3 0x10
15/* Offset from base to TLB tag registers */
16#define DART_TAGS_U3 0x1000
17
18/* U4 registers */
19#define DART_BASE_U4 0x10
20#define DART_SIZE_U4 0x20
21#define DART_EXCP_U4 0x30
22#define DART_TAGS_U4 0x1000
23
24/* Control Register fields */
25
26/* U3 registers */
27#define DART_CNTL_U3_BASE_MASK 0xfffff
28#define DART_CNTL_U3_BASE_SHIFT 12
29#define DART_CNTL_U3_FLUSHTLB 0x400
30#define DART_CNTL_U3_ENABLE 0x200
31#define DART_CNTL_U3_SIZE_MASK 0x1ff
32#define DART_CNTL_U3_SIZE_SHIFT 0
33
34/* U4 registers */
35#define DART_BASE_U4_BASE_MASK 0xffffff
36#define DART_BASE_U4_BASE_SHIFT 0
37#define DART_CNTL_U4_ENABLE 0x80000000
38#define DART_CNTL_U4_IONE 0x40000000
39#define DART_CNTL_U4_FLUSHTLB 0x20000000
40#define DART_CNTL_U4_IDLE 0x10000000
41#define DART_CNTL_U4_PAR_EN 0x08000000
42#define DART_CNTL_U4_IONE_MASK 0x07ffffff
43#define DART_SIZE_U4_SIZE_MASK 0x1fff
44#define DART_SIZE_U4_SIZE_SHIFT 0
45
46#define DART_REG(r) (dart + ((r) >> 2))
47#define DART_IN(r) (in_be32(DART_REG(r)))
48#define DART_OUT(r,v) (out_be32(DART_REG(r), (v)))
49
50
51/* size of table in pages */
52
53
54/* DART table fields */
55
56#define DARTMAP_VALID 0x80000000
57#define DARTMAP_RPNMASK 0x00ffffff
58
59
60#define DART_PAGE_SHIFT 12
61#define DART_PAGE_SIZE (1 << DART_PAGE_SHIFT)
62
63
64#endif /* _POWERPC_SYSDEV_DART_H */