/*      $NetBSD: iq31244_machdep.c,v 1.1 2009/01/09 16:23:59 briggs Exp $       */

/*
* Copyright (c) 2009 The NetBSD Foundation, Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
*    notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
*    notice, this list of conditions and the following disclaimer in the
*    documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/

#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: iq31244_machdep.c,v 1.1 2009/01/09 16:23:59 briggs Exp $");

#include <sys/param.h>
#include <sys/device.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/reboot.h>

#include <dev/i2c/m41st84var.h>

void iq31244_reboot(int);       /* I80321_REBOOT */

/*
* Resetting the peripherals like the IQ80321 does isn't
* a sufficient reset for the IQ31244.  With the stock
* Redboot, that reset will leave it in the Redboot
* debugger on reinit.
* The IQ31244 has an M41ST84, however, that can reset
* the board with the watchdog.  So we just set it to
* do so here.
* The wdog on the 41ST84 should probably be a real
* device, but for now, we just kick it here.
*/
void
iq31244_reboot(int howto)
{

       /* We can't halt; just reset. */
       if ((howto & RB_HALT) == 0) {
               device_t        dv;

               dv = device_find_by_xname("strtc0");
               if (dv == NULL)
               {
                       printf("No strtc0!  Reset will probably fail!\n");
                       return;
               }

               /*
                * 0x80 == steer to reset
                * 0x04 == multiplier 1, resolution 1/16s
                */
               strtc_wdog_config(device_private(dv), 0x84);
               delay(10000);
       }
}