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1/*
2 * Carsten Langgaard, carstenl@mips.com
3 * Copyright (C) 2000 MIPS Technologies, Inc. All rights reserved.
4 *
5 * This program is free software; you can distribute it and/or modify it
6 * under the terms of the GNU General Public License (Version 2) as
7 * published by the Free Software Foundation.
8 *
9 * This program is distributed in the hope it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * for more details.
13 *
14 * You should have received a copy of the GNU General Public License along
15 * with this program; if not, write to the Free Software Foundation, Inc.,
16 * 59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
17 *
18 * Register definitions for Intel PIIX4 South Bridge Device.
19 */
20#ifndef __ASM_MIPS_BOARDS_PIIX4_H
21#define __ASM_MIPS_BOARDS_PIIX4_H
22
23/************************************************************************
24 * IO register offsets
25 ************************************************************************/
26#define PIIX4_ICTLR1_ICW1 0x20
27#define PIIX4_ICTLR1_ICW2 0x21
28#define PIIX4_ICTLR1_ICW3 0x21
29#define PIIX4_ICTLR1_ICW4 0x21
30#define PIIX4_ICTLR2_ICW1 0xa0
31#define PIIX4_ICTLR2_ICW2 0xa1
32#define PIIX4_ICTLR2_ICW3 0xa1
33#define PIIX4_ICTLR2_ICW4 0xa1
34#define PIIX4_ICTLR1_OCW1 0x21
35#define PIIX4_ICTLR1_OCW2 0x20
36#define PIIX4_ICTLR1_OCW3 0x20
37#define PIIX4_ICTLR1_OCW4 0x20
38#define PIIX4_ICTLR2_OCW1 0xa1
39#define PIIX4_ICTLR2_OCW2 0xa0
40#define PIIX4_ICTLR2_OCW3 0xa0
41#define PIIX4_ICTLR2_OCW4 0xa0
42
43
44/************************************************************************
45 * Register encodings.
46 ************************************************************************/
47#define PIIX4_OCW2_NSEOI (0x1 << 5)
48#define PIIX4_OCW2_SEOI (0x3 << 5)
49#define PIIX4_OCW2_RNSEOI (0x5 << 5)
50#define PIIX4_OCW2_RAEOIS (0x4 << 5)
51#define PIIX4_OCW2_RAEOIC (0x0 << 5)
52#define PIIX4_OCW2_RSEOI (0x7 << 5)
53#define PIIX4_OCW2_SP (0x6 << 5)
54#define PIIX4_OCW2_NOP (0x2 << 5)
55
56#define PIIX4_OCW2_SEL (0x0 << 3)
57
58#define PIIX4_OCW2_ILS_0 0
59#define PIIX4_OCW2_ILS_1 1
60#define PIIX4_OCW2_ILS_2 2
61#define PIIX4_OCW2_ILS_3 3
62#define PIIX4_OCW2_ILS_4 4
63#define PIIX4_OCW2_ILS_5 5
64#define PIIX4_OCW2_ILS_6 6
65#define PIIX4_OCW2_ILS_7 7
66#define PIIX4_OCW2_ILS_8 0
67#define PIIX4_OCW2_ILS_9 1
68#define PIIX4_OCW2_ILS_10 2
69#define PIIX4_OCW2_ILS_11 3
70#define PIIX4_OCW2_ILS_12 4
71#define PIIX4_OCW2_ILS_13 5
72#define PIIX4_OCW2_ILS_14 6
73#define PIIX4_OCW2_ILS_15 7
74
75#define PIIX4_OCW3_SEL (0x1 << 3)
76
77#define PIIX4_OCW3_IRR 0x2
78#define PIIX4_OCW3_ISR 0x3
79
80#endif /* __ASM_MIPS_BOARDS_PIIX4_H */