/*      $OpenBSD: geodescreg.h,v 1.3 2006/02/01 13:08:12 mickey Exp $     */

/*
 * Copyright (c) 2003 Markus Friedl <markus@openbsd.org>
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

/*
 * Geode SC1100 Information Appliance On a Chip
 * http://www.national.com/ds.cgi/SC/SC1100.pdf
 */

/* Configuration Space Register Map */

#define SC1100_F5_SCRATCHPAD    0x64

#define GCB_WDTO        0x0000  /* WATCHDOG Timeout */
#define GCB_WDCNFG      0x0002  /* WATCHDOG Configuration */
#define GCB_WDSTS       0x0004  /* WATCHDOG Status */
#define GCB_TSC         0x0008  /* Cyclecounter at 27MHz */
#define GCB_TSCNFG      0x000c  /* config for the above */
#define GCB_IID         0x003c  /* IA On a Chip ID */
#define GCB_REV         0x003d  /* Revision */
#define GCB_CBA         0x003e  /* Configuration Base Address */

/* Watchdog */

#define WD32KPD_ENABLE  0x0000
#define WD32KPD_DISABLE 0x0100
#define WDTYPE1_RESET   0x0030
#define WDTYPE2_RESET   0x00c0
#define WDPRES_DIV_512  0x0009
#define WDPRES_DIV_8192 0x000d
#define WDCNFG_MASK     0x00ff
#define WDOVF_CLEAR     0x0001

/* cyclecounter */

#define TSC_ENABLE      0x0200