61 lines
2.0 KiB
C
61 lines
2.0 KiB
C
/*
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*
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* BRIEF MODULE DESCRIPTION
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* ITE 8172 reset routines.
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*
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* Copyright 2001 MontaVista Software Inc.
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* Author: MontaVista Software, Inc.
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* ppopov@mvista.com or source@mvista.com
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
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* NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <linux/sched.h>
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#include <linux/mm.h>
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#include <asm/cacheflush.h>
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#include <asm/io.h>
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#include <asm/processor.h>
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#include <asm/reboot.h>
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#include <asm/system.h>
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void it8172_restart()
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{
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set_c0_status(ST0_BEV | ST0_ERL);
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change_c0_config(CONF_CM_CMASK, CONF_CM_UNCACHED);
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flush_cache_all();
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write_c0_wired(0);
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__asm__ __volatile__("jr\t%0"::"r"(0xbfc00000));
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}
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void it8172_halt(void)
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{
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printk(KERN_NOTICE "\n** You can safely turn off the power\n");
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while (1)
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__asm__(".set\tmips3\n\t"
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"wait\n\t"
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".set\tmips0");
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}
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void it8172_power_off(void)
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{
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it8172_halt();
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}
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