xref: /netbsd/sys/arch/acorn32/podulebus/icsidereg.h (revision bf9ec67e)
1 /*	$NetBSD: icsidereg.h,v 1.1 2001/10/05 22:27:56 reinoud Exp $	*/
2 
3 /*
4  * Copyright (c) 1997 Mark Brinicombe
5  * Copyright (c) 1997 Causality Limited
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  * 3. All advertising materials mentioning features or use of this software
16  *    must display the following acknowledgement:
17  *	This product includes software developed by Mark Brinicombe
18  *	for the NetBSD Project.
19  * 4. The name of the author may not be used to endorse or promote products
20  *    derived from this software without specific prior written permission.
21  *
22  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
23  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
24  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
25  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
26  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
27  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
28  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
29  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
30  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
31  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
32  */
33 
34 /*
35  * Registers and address offsets for the ICS IDE card.
36  */
37 
38 /* ID register, read 4 consecutive words and extract ID from bit 0 */
39 #define ID_REGISTER_OFFSET		0x2280	/* byte offset from fast base */
40 
41 #define REGISTER_SPACING_SHIFT		6
42 #define IDE_REGISTER_SPACE		0x200
43 #define AUX_REGISTER_SPACE		4
44 #define IRQ_REGISTER_SPACE		4
45 #define ID_REGISTER_SPACE		4
46 #define IRQ_STATUS_REGISTER_MASK	0x01
47 
48 /* IDE drive registers */
49 
50 /* ARCIN V5 registers */
51 #define V5_IDE_BASE			0x2800	/* byte offset from base */
52 #define V5_AUX_BASE			0x2a80	/* byte offset from base */
53 #define V5_IRQ_BASE			0x0004	/* byte offset from base */
54 #define V5_IRQSTAT_BASE			0x0000	/* byte offset from base */
55 
56 /* ARCIN V6 registers */
57 #define V6_P_IDE_BASE			0x2000	/* byte offset from base */
58 #define V6_P_AUX_BASE			0x2380	/* byte offset from base */
59 #define V6_P_IRQ_BASE			0x2200	/* byte offset from base */
60 #define V6_P_IRQSTAT_BASE		0x2290	/* byte offset from base */
61 
62 #define V6_S_IDE_BASE			0x3000	/* byte offset from base */
63 #define V6_S_AUX_BASE			0x3380	/* byte offset from base */
64 #define V6_S_IRQ_BASE			0x3200	/* byte offset from base */
65 #define V6_S_IRQSTAT_BASE		0x3290	/* byte offset from base */
66