1248557Sray/*- 2250357Sray * Copyright (c) 2012, 2013 The FreeBSD Foundation 3248557Sray * All rights reserved. 4248557Sray * 5248557Sray * This software was developed by Oleksandr Rybalko under sponsorship 6248557Sray * from the FreeBSD Foundation. 7248557Sray * 8248557Sray * Redistribution and use in source and binary forms, with or without 9248557Sray * modification, are permitted provided that the following conditions 10248557Sray * are met: 11248557Sray * 1. Redistributions of source code must retain the above copyright 12248557Sray * notice, this list of conditions and the following disclaimer. 13248557Sray * 2. Redistributions in binary form must reproduce the above copyright 14248557Sray * notice, this list of conditions and the following disclaimer in the 15248557Sray * documentation and/or other materials provided with the distribution. 16248557Sray * 17248557Sray * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18248557Sray * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19248557Sray * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20248557Sray * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21248557Sray * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22248557Sray * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23248557Sray * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24248557Sray * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25248557Sray * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26248557Sray * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27248557Sray * SUCH DAMAGE. 28248557Sray * 29248557Sray * $FreeBSD$ 30248557Sray */ 31248557Sray 32248557Sray#define WDOG_CLK_FREQ 32768 33248557Sray 34248557Sray#define WDOG_CR_REG 0x00 /* Control Register */ 35248557Sray#define WDOG_CR_WT_MASK 0xff00 /* Count of 0.5 sec */ 36248557Sray#define WDOG_CR_WT_SHIFT 8 37248557Sray#define WDOG_CR_WDW (1 << 7) /* Suspend WDog */ 38248557Sray#define WDOG_CR_WDA (1 << 5) /* Don't touch ipp_wdog */ 39248557Sray#define WDOG_CR_SRS (1 << 4) /* Don't touch sys_reset */ 40248557Sray#define WDOG_CR_WDT (1 << 3) /* Assert ipp_wdog on tout */ 41248557Sray#define WDOG_CR_WDE (1 << 2) /* WDog Enable */ 42248557Sray#define WDOG_CR_WDBG (1 << 1) /* Suspend when DBG mode */ 43248557Sray#define WDOG_CR_WDZST (1 << 0) /* Suspend when LP mode */ 44248557Sray 45248557Sray#define WDOG_SR_REG 0x02 /* Service Register */ 46248557Sray#define WDOG_SR_STEP1 0x5555 47248557Sray#define WDOG_SR_STEP2 0xaaaa 48248557Sray 49248557Sray#define WDOG_RSR_REG 0x04 /* Reset Status Register */ 50248557Sray#define WDOG_RSR_TOUT (1 << 1) /* Due WDog timeout reset */ 51248557Sray#define WDOG_RSR_SFTW (1 << 0) /* Due Soft reset */ 52248557Sray 53248557Sray#define WDOG_ICR_REG 0x06 /* Interrupt Control Register */ 54248557Sray#define WDOG_ICR_WIE (1 << 15) /* Enable Interrupt */ 55248557Sray#define WDOG_ICR_WTIS (1 << 14) /* Interrupt has occurred */ 56248557Sray#define WDOG_ICR_WTCT_MASK 0x00ff 57248557Sray#define WDOG_ICR_WTCT_SHIFT 0 /* Interrupt hold time */ 58248557Sray 59248557Sray#define WDOG_MCR_REG 0x08 /* Miscellaneous Control Register */ 60248557Sray#define WDOG_MCR_PDE (1 << 0) 61248557Sray 62248557Sray#define READ(_sc, _r) \ 63248557Sray bus_space_read_2((_sc)->sc_bst, (_sc)->sc_bsh, (_r)) 64248557Sray#define WRITE(_sc, _r, _v) \ 65248557Sray bus_space_write_2((_sc)->sc_bst, (_sc)->sc_bsh, (_r), (_v)) 66