1 /* $OpenBSD: geodescreg.h,v 1.3 2006/02/01 13:08:12 mickey Exp $ */
2
3 /*
4 * Copyright (c) 2003 Markus Friedl <markus@openbsd.org>
5 *
6 * Permission to use, copy, modify, and distribute this software for any
7 * purpose with or without fee is hereby granted, provided that the above
8 * copyright notice and this permission notice appear in all copies.
9 *
10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 */
18
19 /*
20 * Geode SC1100 Information Appliance On a Chip
21 * http://www.national.com/ds.cgi/SC/SC1100.pdf
22 */
23
24 /* Configuration Space Register Map */
25
26 #define SC1100_F5_SCRATCHPAD 0x64
27
28 #define GCB_WDTO 0x0000 /* WATCHDOG Timeout */
29 #define GCB_WDCNFG 0x0002 /* WATCHDOG Configuration */
30 #define GCB_WDSTS 0x0004 /* WATCHDOG Status */
31 #define GCB_TSC 0x0008 /* Cyclecounter at 27MHz */
32 #define GCB_TSCNFG 0x000c /* config for the above */
33 #define GCB_IID 0x003c /* IA On a Chip ID */
34 #define GCB_REV 0x003d /* Revision */
35 #define GCB_CBA 0x003e /* Configuration Base Address */
36
37 /* Watchdog */
38
39 #define WD32KPD_ENABLE 0x0000
40 #define WD32KPD_DISABLE 0x0100
41 #define WDTYPE1_RESET 0x0030
42 #define WDTYPE2_RESET 0x00c0
43 #define WDPRES_DIV_512 0x0009
44 #define WDPRES_DIV_8192 0x000d
45 #define WDCNFG_MASK 0x00ff
46 #define WDOVF_CLEAR 0x0001
47
48 /* cyclecounter */
49
50 #define TSC_ENABLE 0x0200
51