reset.c
上传用户:lgb322
上传日期:2013-02-24
资源大小:30529k
文件大小:2k
- /*
- *
- * BRIEF MODULE DESCRIPTION
- * Au1000 reset routines.
- *
- * Copyright 2001 MontaVista Software Inc.
- * Author: MontaVista Software, Inc.
- * ppopov@mvista.com or source@mvista.com
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- * THIS SOFTWARE IS PROVIDED ``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 AUTHOR 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.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 675 Mass Ave, Cambridge, MA 02139, USA.
- */
- #include <linux/sched.h>
- #include <linux/mm.h>
- #include <asm/io.h>
- #include <asm/pgtable.h>
- #include <asm/processor.h>
- #include <asm/reboot.h>
- #include <asm/system.h>
- void au1000_restart(char *command)
- {
- set_cp0_status(ST0_BEV | ST0_ERL);
- set_cp0_config(CONF_CM_UNCACHED);
- flush_cache_all();
- write_32bit_cp0_register(CP0_WIRED, 0);
- __asm__ __volatile__("jrt%0"::"r"(0xbfc00000));
- }
- void au1000_halt(void)
- {
- printk(KERN_NOTICE "n** You can safely turn off the powern");
- while (1)
- __asm__(".settmips3nt"
- "waitnt"
- ".settmips0");
- }
- void au1000_power_off(void)
- {
- au1000_halt();
- }